diff options
Diffstat (limited to 'third_party/resample/sndlib-20/headers.c')
| -rw-r--r-- | third_party/resample/sndlib-20/headers.c | 5797 |
1 files changed, 0 insertions, 5797 deletions
diff --git a/third_party/resample/sndlib-20/headers.c b/third_party/resample/sndlib-20/headers.c deleted file mode 100644 index 676066a4..00000000 --- a/third_party/resample/sndlib-20/headers.c +++ /dev/null @@ -1,5797 +0,0 @@ -/* readers/writers for various sound file headers - * - * -------------------------------- - * int mus_header_read (const char *name) - * int mus_header_write (const char *name, int type, int in_srate, int in_chans, off_t loc, off_t size_in_samples, int format, const char *comment, int len) - * int mus_header_initialize (void) - * - * Once mus_header_read has been called, the data in it can be accessed through: - * - * off_t mus_header_samples (void) samples - * off_t mus_header_data_location (void) location of data (bytes) - * int mus_header_chans (void) channels - * int mus_header_srate (void) srate - * int mus_header_type (void) header type (i.e. aiff, wave, etc) (see sndlib.h) - * int mus_header_format (void) data format (see sndlib.h) - * off_t mus_header_comment_start (void) comment start location (if any) (bytes) - * off_t mus_header_comment_end (void) comment end location - * off_t mus_header_aux_comment_start (int n) if multiple comments, nth start location - * off_t mus_header_aux_comment_end (int n) if multiple comments, nth end location - * int mus_header_type_specifier (void) original (header-specific) type ID - * int mus_header_bits_per_sample (void) sample width in bits - * off_t mus_header_true_length (void) true (lseek) file length - * int mus_bytes_per_sample (int format) sample width in bytes - * bool mus_header_writable(int type, int format) can we write this header - * -------------------------------- - * - * "Linear" below means 2's complement integer. - * - * Currently supported read/write (in standard data formats): - * NeXT/Sun/DEC/AFsp - * AIFF/AIFC - * RIFF (microsoft wave) - * IRCAM (old style) - * NIST-sphere - * no header - * - * Currently supported read-only (in selected data formats): - * 8SVX (IFF), EBICSF, INRS, ESPS, SPPACK, ADC (OGI), AVR, VOC, CSL, snack "SMP", PVF, - * Sound Tools, Turtle Beach SMP, SoundFont 2.0, Sound Designer I, PSION alaw, MAUD, - * Gravis Ultrasound, Comdisco SPW, Goldwave sample, OMF, NVF, - * Sonic Foundry, SBStudio II, Delusion digital, Digiplayer ST3, Farandole Composer WaveSample, - * Ultratracker WaveSample, Sample Dump exchange, Yamaha SY85 and SY99 (buggy), Yamaha TX16W, - * Covox v8, AVI, Kurzweil 2000, Paris Ensoniq, Impulse tracker, Korg, Akai type 4, Maui, - * - * for a few of these I'm still trying to get documentation -- best sources of info - * are ftp.cwi.nl:pub/audio (info files), the AFsp sources, and the SOX sources. - * sox and gsm are at ftp.cwi.nl, AFsp is from kabal@Polaris.EE.McGill.CA (Peter Kabal) as - * ftp.TSP.EE.McGill.CA:/pub/AFsp/AFsp-V3R2.tar.Z. The Sound Designer formats are described - * in the "Developer Documentation" from Digidesign. Other useful sources can be found at - * ftp.x.org:/contrib/audio/nas, svr-ftp.eng.cam.ac.uk:/comp.speech/tools, and - * at http://www.wotsit.org. I put many of my test cases in - * ccrma-ftp.stanford.edu:/pub/Lisp/sf.tar.gz. The RIFF format is described in the - * Microsoft Multimedia Programmer's Reference Manual at ftp.microsoft.com:/SoftLib/MSLFILES/MDRK.EXE. - * AVI format is described in http://www.rahul.net/jfm/avi.html. - * - * For a lot of info and examples see http://www.TSP.ECE.McGill.CA/MMSP/Documents/AudioFormats/index.html - * - * The main problem with compressed sound files is that you can't do reliable - * random access to the data, can't easily read backwards, and most of the compression - * schemes are proprietary (and appalling), but to translate Mus10/Sam, HCOM, IEEE text, - * MIDI sample dumps, various adpcm cases, NIST shortpack files, and AVI see snd-trans.c - * in the sound editor (snd-8.tar.gz). - * - * If anyone has information on any other header or data formats, I would be most interested in it, - * but only if it can be included in this file. - * - * ivc format appears to have 16 bytes of header (-1 5 0 0 0 0 -> mulaw) followed by mulaw or alaw data - */ - -#include <mus-config.h> - -#if USE_SND - #include "snd.h" -#else - #if HAVE_RUBY && (!CLM) - #include "xen.h" - #endif -#endif - -#include <math.h> -#include <stdio.h> -#include <errno.h> -#include <stdlib.h> -#if HAVE_STRING_H - #include <string.h> -#endif -#if (defined(HAVE_LIBC_H) && (!defined(HAVE_UNISTD_H))) - #include <libc.h> -#else - #if (!(defined(_MSC_VER))) - #include <unistd.h> - #endif -#endif - -#include "_sndlib.h" -#include "sndlib-strings.h" - -static bool hdrbuf_is_inited = false; - -#define HDRBUFSIZ 256 -static unsigned char *hdrbuf; -#define INITIAL_READ_SIZE 32 - -/* AIFF files can have any number of ANNO chunks, so we'll grab at least 4 of them */ -#define AUX_COMMENTS 4 -static off_t *aux_comment_start = NULL, *aux_comment_end = NULL; - -#define LOOPS 2 -static int *loop_modes = NULL, *loop_starts = NULL, *loop_ends = NULL; -static int markers = 0; -static int *marker_ids = NULL, *marker_positions = NULL; - -/* for CLM */ -void mus_reset_headers_c(void) -{ - hdrbuf_is_inited = false; - markers = 0; -} - -int mus_header_initialize(void) -{ - if (!hdrbuf_is_inited) - { - hdrbuf_is_inited = true; - hdrbuf = (unsigned char *)CALLOC(HDRBUFSIZ, sizeof(unsigned char)); - aux_comment_start = (off_t *)CALLOC(AUX_COMMENTS, sizeof(off_t)); - aux_comment_end = (off_t *)CALLOC(AUX_COMMENTS, sizeof(off_t)); - loop_modes = (int *)CALLOC(LOOPS, sizeof(int)); - loop_starts = (int *)CALLOC(LOOPS, sizeof(int)); - loop_ends = (int *)CALLOC(LOOPS, sizeof(int)); - if ((hdrbuf == NULL) || (aux_comment_start == NULL) || (aux_comment_end == NULL) || - (loop_modes == NULL) || (loop_starts == NULL) || (loop_ends == NULL)) - return(mus_error(MUS_MEMORY_ALLOCATION_FAILED, "mus_header_initialize: buffer allocation failed")); - } - return(MUS_NO_ERROR); -} - - -static const unsigned char I_DSND[4] = {'.','s','n','d'}; /* NeXT/Sun/Dec/SGI/AFsp first word */ -static const unsigned char I_FORM[4] = {'F','O','R','M'}; /* AIFF first word */ -static const unsigned char I_AIFF[4] = {'A','I','F','F'}; /* AIFF second word */ -static const unsigned char I_AIFC[4] = {'A','I','F','C'}; /* ditto but might be compressed data */ -static const unsigned char I_COMM[4] = {'C','O','M','M'}; -static const unsigned char I_COMT[4] = {'C','O','M','T'}; -static const unsigned char I_INFO[4] = {'I','N','F','O'}; -static const unsigned char I_INST[4] = {'I','N','S','T'}; -static const unsigned char I_inst[4] = {'i','n','s','t'}; /* RIFF wants lower case, just to be different */ -static const unsigned char I_MARK[4] = {'M','A','R','K'}; -static const unsigned char I_SSND[4] = {'S','S','N','D'}; -static const unsigned char I_FVER[4] = {'F','V','E','R'}; -static const unsigned char I_NONE[4] = {'N','O','N','E'}; -static const unsigned char I_ULAW[4] = {'U','L','A','W'}; /* AIFC compression types that we can handle */ -static const unsigned char I_ulaw[4] = {'u','l','a','w'}; /* or maybe it's lowercase (Apple) ... */ -static const unsigned char I_ima4[4] = {'i','m','a','4'}; /* AIFC IMA adpcm apparently */ -static const unsigned char I_raw_[4] = {'r','a','w',' '}; /* AIFC offset binary OS 8.5 (others are 'MAC3' 'MAC6' 'cdx4' 'cdx2' 'str4') */ -static const unsigned char I_sowt[4] = {'s','o','w','t'}; /* AIFC 16-bit little endian -- used by Mac when extracting CD tracks */ -static const unsigned char I_in32[4] = {'i','n','3','2'}; /* AIFC */ -static const unsigned char I_in24[4] = {'i','n','2','4'}; /* AIFC */ -static const unsigned char I_ni23[4] = {'n','i','2','3'}; /* AIFC */ -static const unsigned char I_fl32[4] = {'f','l','3','2'}; /* AIFC 32-bit float */ -static const unsigned char I_FL32[4] = {'F','L','3','2'}; /* AIFC 32-bit float (apparently used by CSound and SoundHack) */ -static const unsigned char I_fl64[4] = {'f','l','6','4'}; /* AIFC 64-bit float */ -static const unsigned char I_twos[4] = {'t','w','o','s'}; /* AIFC big endian? */ -static const unsigned char I_ALAW[4] = {'A','L','A','W'}; -static const unsigned char I_alaw[4] = {'a','l','a','w'}; /* apple */ -static const unsigned char I_APPL[4] = {'A','P','P','L'}; -static const unsigned char I_MUS_[4] = {'C','L','M',' '}; /* I hereby claim this AIFF chunk name */ -static const unsigned char I_RIFF[4] = {'R','I','F','F'}; /* RIFF first word */ -static const unsigned char I_RIFX[4] = {'R','I','F','X'}; /* RIFX first word (big-endian RIFF file) */ -static const unsigned char I_WAVE[4] = {'W','A','V','E'}; -static const unsigned char I_fmt_[4] = {'f','m','t',' '}; -static const unsigned char I_data[4] = {'d','a','t','a'}; -static const unsigned char I_fact[4] = {'f','a','c','t'}; /* used by compressed RIFF files */ -static const unsigned char I_clm_[4] = {'c','l','m',' '}; -static const unsigned char I_NIST[4] = {'N','I','S','T'}; /* first word of NIST SPHERE files */ -static const unsigned char I_8SVX[4] = {'8','S','V','X'}; /* AIFF other choice */ -static const unsigned char I_16SV[4] = {'1','6','S','V'}; /* hmmm... 16-bit 8svx? */ -static const unsigned char I_VOC0[4] = {'C','r','e','a'}; /* Actual text is "Creative Voice File" */ -static const unsigned char I_VOC1[4] = {'t','i','v','e'}; -static const unsigned char I_SOUN[4] = {'S','O','U','N'}; /* Sound Tools first word="SOUND" -- not unique as SMP files start with "SOUND SAMPLE" */ -static const unsigned char I_D_SA[4] = {'D',' ','S','A'}; -static const unsigned char I_MPLE[4] = {'M','P','L','E'}; -static const unsigned char I_BODY[4] = {'B','O','D','Y'}; /* next 4 for 8svx chunk names */ -static const unsigned char I_VHDR[4] = {'V','H','D','R'}; -static const unsigned char I_CHAN[4] = {'C','H','A','N'}; -static const unsigned char I_ANNO[4] = {'A','N','N','O'}; -static const unsigned char I_NAME[4] = {'N','A','M','E'}; -static const unsigned char I_AVR_[4] = {'2','B','I','T'}; /* first word of AVR files */ -static const unsigned char I_HCOM[4] = {'H','C','O','M'}; -static const unsigned char I_FSSD[4] = {'F','S','S','D'}; -static const unsigned char I_SPIB[4] = {'%','/','/','\n'}; /* first word of IEEE spib text sound files */ -static const unsigned char I_S___[4] = {'%','-','-','-'}; /* first word of other IEEE spib text sound files */ -static const unsigned char I_ALaw[4] = {'A','L','a','w'}; /* first word of PSION alaw files */ -static const unsigned char I_Soun[4] = {'S','o','u','n'}; /* second */ -static const unsigned char I_MAUD[4] = {'M','A','U','D'}; /* MAUD specialization of AIFF */ -static const unsigned char I_MHDR[4] = {'M','H','D','R'}; -static const unsigned char I_MDAT[4] = {'M','D','A','T'}; -static const unsigned char I_mdat[4] = {'m','d','a','t'}; /* quicktime */ -static const unsigned char I_MThd[4] = {'M','T','h','d'}; /* sigh -- the M word */ -static const unsigned char I_DECN[4] = {'.','s','d','\0'}; /* first word of DEC files (?) */ -static const unsigned char I_sfbk[4] = {'s','f','b','k'}; /* SoundFont 2.0 */ -static const unsigned char I_sdta[4] = {'s','d','t','a'}; -static const unsigned char I_shdr[4] = {'s','h','d','r'}; -static const unsigned char I_pdta[4] = {'p','d','t','a'}; -static const unsigned char I_LIST[4] = {'L','I','S','T'}; -static const unsigned char I_GF1P[4] = {'G','F','1','P'}; /* first word of Gravis Ultrsound patch files */ -static const unsigned char I_ATCH[4] = {'A','T','C','H'}; /* second word */ -static const unsigned char I_DSIG[4] = {'$','S','I','G'}; /* first word of Comdisco SPW file */ -static const unsigned char I_NAL_[4] = {'N','A','L','_'}; /* second word */ -static const unsigned char I_GOLD[4] = {'G','O','L','D'}; /* first word Goldwave(?) sample file */ -static const unsigned char I__WAV[4] = {' ','S','A','M'}; /* second word */ -static const unsigned char I_SRFS[4] = {'S','R','F','S'}; /* first word Sonic Resource Foundry file(?) */ -static const unsigned char I_Diam[4] = {'D','i','a','m'}; /* first word DiamondWare file */ -static const unsigned char I_ondW[4] = {'o','n','d','W'}; /* second word */ -static const unsigned char I_CSRE[4] = {'C','S','R','E'}; /* adf first word -- second starts with "40" */ -static const unsigned char I_SND_[4] = {'S','N','D',' '}; /* SBStudio II */ -static const unsigned char I_SNIN[4] = {'S','N','I','N'}; -static const unsigned char I_SNNA[4] = {'S','N','N','A'}; -static const unsigned char I_SNDT[4] = {'S','N','D','T'}; -static const unsigned char I_DDSF[4] = {'D','D','S','F'}; /* Delusion Digital Sound File */ -static const unsigned char I_FSMt[4] = {'F','S','M',(unsigned char)'\376'}; /* Farandole Composer WaveSample */ -static const unsigned char I_SDXc[4] = {'S','D','X',':'}; /* Sample dump exchange format */ -static const unsigned char I_UWFD[4] = {'U','W','F','D'}; /* Ultratracker Wavesample */ -static const unsigned char I_LM89[4] = {'L','M','8','9'}; /* Yamaha TX-16 */ -static const unsigned char I_SY80[4] = {'S','Y','8','0'}; /* Yamaha SY-99 */ -static const unsigned char I_SY85[4] = {'S','Y','8','5'}; /* Yamaha SY-85 */ -static const unsigned char I_SCRS[4] = {'S','C','R','S'}; /* Digiplayer ST3 */ -static const unsigned char I_covox[4] = {(unsigned char)'\377','\125',(unsigned char)'\377',(unsigned char)'\252'}; -/* static const unsigned char I_DSPL[4] = {'D','S','P','L'}; */ /* Digitracker SPL (now obsolete) */ -static const unsigned char I_AVI_[4] = {'A','V','I',' '}; /* RIFF AVI */ -static const unsigned char I_strf[4] = {'s','t','r','f'}; -static const unsigned char I_movi[4] = {'m','o','v','i'}; -static const unsigned char I_PRAM[4] = {'P','R','A','M'}; /* Kurzweil 2000 */ -static const unsigned char I_ones[4] = {(unsigned char)'\377',(unsigned char)'\377',(unsigned char)'\377',(unsigned char)'\377'}; -static const unsigned char I_zeros[4] = {'\0','\0','\0','\0'}; -static const unsigned char I_asf0[4] = {(unsigned char)'\321','\051',(unsigned char)'\342',(unsigned char)'\326'}; -static const unsigned char I_asf1[4] = {(unsigned char)'\332','\065',(unsigned char)'\321','\021'}; -static const unsigned char I_asf2[4] = {(unsigned char)'\220','\064','\000',(unsigned char)'\240'}; -static const unsigned char I_asf3[4] = {(unsigned char)'\311','\003','\111',(unsigned char)'\276'}; -static const unsigned char I__PAF[4] = {' ','p','a','f'}; /* Paris Ensoniq */ -static const unsigned char I_FAP_[4] = {'f','a','p',' '}; /* Paris Ensoniq */ -static const unsigned char I_DS16[4] = {'D','S','1','6'}; /* CSL */ -static const unsigned char I_HEDR[4] = {'H','E','D','R'}; -static const unsigned char I_HDR8[4] = {'H','D','R','8'}; -static const unsigned char I_SDA_[4] = {'S','D','A','_'}; -static const unsigned char I_SDAB[4] = {'S','D','A','B'}; -static const unsigned char I_SD_B[4] = {'S','D','_','B'}; -static const unsigned char I_NOTE[4] = {'N','O','T','E'}; -static const unsigned char I_file[4] = {'f','i','l','e'}; /* snack "SMP" */ -static const unsigned char I__sam[4] = {'=','s','a','m'}; -static const unsigned char I_SU7M[4] = {'S','U','7','M'}; -static const unsigned char I_SU7R[4] = {'S','U','7','R'}; -static const unsigned char I_PVF1[4] = {'P','V','F','1'}; /* portable voice format (mgetty) */ -static const unsigned char I_PVF2[4] = {'P','V','F','2'}; -static const unsigned char I_AUTH[4] = {'A','U','T','H'}; -static const unsigned char I_riff[4] = {'r','i','f','f'}; /* SoundForge */ -static const unsigned char I_TWIN[4] = {'T','W','I','N'}; /* TwinVQ */ -static const unsigned char I_IMPS[4] = {'I','M','P','S'}; /* Impulse Tracker */ -static const unsigned char I_SMP1[4] = {'S','M','P','1'}; /* Korg */ -static const unsigned char I_Maui[4] = {'M','a','u','i'}; /* Turtle Beach */ -static const unsigned char I_SDIF[4] = {'S','D','I','F'}; /* IRCAM sdif */ -static const unsigned char I_NVF_[4] = {'N','V','F',' '}; /* Nomad II Creative NVF */ -static const unsigned char I_VFMT[4] = {'V','F','M','T'}; /* Nomad II Creative NVF */ -static const unsigned char I_OggS[4] = {'O','g','g','S'}; /* Ogg-related files, apparently -- ogg123 has "vorbis" instead of "Speex" */ -static const unsigned char I_fLaC[4] = {'f','L','a','C'}; /* FLAC */ -static const unsigned char I_ajkg[4] = {'a','j','k','g'}; /* shorten */ -static const unsigned char I_TTA1[4] = {'T','T','A','1'}; /* ttaenc */ -static const unsigned char I_wvpk[4] = {'w','v','p','k'}; /* wavpack */ - -#define I_IRCAM_VAX 0x0001a364 -#define I_IRCAM_SUN 0x0002a364 -#define I_IRCAM_MIPS 0x0003a364 -#define I_IRCAM_NEXT 0x0004a364 - -#define NINRS 7 -static const unsigned int I_INRS[NINRS] = {0xcb460020, 0xd0465555, 0xfa460000, 0x1c470040, 0x3b470080, 0x7a470000, 0x9c470040}; - -static off_t data_location = 0; -static int srate = 0, chans = 0, header_type = MUS_UNSUPPORTED, data_format = MUS_UNKNOWN, original_data_format = 0; -static int type_specifier = 0, bits_per_sample = 0, block_align = 0, fact_samples = 0; -static off_t comment_start = 0, comment_end = 0; -static off_t true_file_length = 0, data_size = 0; -static int base_detune = 0, base_note = 0; -static bool little_endian = false; - -off_t mus_header_samples(void) {return(data_size);} -off_t mus_header_data_location(void) {return(data_location);} -int mus_header_chans(void) {return(chans);} -int mus_header_srate(void) {return(srate);} -int mus_header_type(void) {return(header_type);} -int mus_header_format(void) {return(data_format);} -off_t mus_header_comment_start(void) {return(comment_start);} -off_t mus_header_comment_end(void) {return(comment_end);} -off_t mus_header_aux_comment_start(int n) {if (aux_comment_start) return(aux_comment_start[n]); else return(-1);} -off_t mus_header_aux_comment_end(int n) {if (aux_comment_end) return(aux_comment_end[n]); else return(-1);} -int mus_header_type_specifier(void) {return(type_specifier);} -int mus_header_bits_per_sample(void) {return(bits_per_sample);} -int mus_header_fact_samples(void) {return(fact_samples);} -int mus_header_block_align(void) {return(block_align);} -off_t mus_header_true_length(void) {return(true_file_length);} -int mus_header_original_format(void) {return(original_data_format);} -int mus_header_loop_mode(int which) {if (loop_modes) return(loop_modes[which]); else return(-1);} -int mus_header_loop_start(int which) {if (loop_starts) return(loop_starts[which]); else return(-1);} -int mus_header_loop_end(int which) {if (loop_ends) return(loop_ends[which]); else return(-1);} -int mus_header_mark_position(int id) {int i; for (i = 0; i < markers; i++) {if (marker_ids[i] == id) return(marker_positions[i]);} return(-1);} -int mus_header_base_detune(void) {return(base_detune);} -int mus_header_base_note(void) {return(base_note);} - -int mus_bytes_per_sample(int format) -{ - switch (format) - { - case MUS_BYTE: return(1); break; - case MUS_BSHORT: return(2); break; - case MUS_UBYTE: return(1); break; - case MUS_MULAW: return(1); break; - case MUS_ALAW: return(1); break; - case MUS_BINT: return(4); break; - case MUS_BFLOAT: return(4); break; - case MUS_BFLOAT_UNSCALED: return(4); break; - case MUS_B24INT: return(3); break; - case MUS_BDOUBLE: return(8); break; - case MUS_BDOUBLE_UNSCALED: return(8); break; - case MUS_LSHORT: return(2); break; - case MUS_LINT: return(4); break; - case MUS_LFLOAT: return(4); break; - case MUS_LDOUBLE: return(8); break; - case MUS_LFLOAT_UNSCALED: return(4); break; - case MUS_LDOUBLE_UNSCALED: return(8); break; - case MUS_L24INT: return(3); break; - case MUS_UBSHORT: return(2); break; - case MUS_ULSHORT: return(2); break; - case MUS_BINTN: return(4); break; - case MUS_LINTN: return(4); break; - default: return(1); break; /* we divide by this number, so 0 is not safe */ - } -} - -off_t mus_samples_to_bytes (int format, off_t size) {return(size * (mus_bytes_per_sample(format)));} -off_t mus_bytes_to_samples (int format, off_t size) {return((off_t)(size / (mus_bytes_per_sample(format))));} - - -static bool equal_big_or_little_endian(const unsigned char *n1, const unsigned int n2) -{ - return((mus_char_to_ubint(n1) == n2) || (mus_char_to_ulint(n1) == n2)); -} - -static short big_or_little_endian_short(const unsigned char *n, bool little) -{ - if (little) return(mus_char_to_lshort(n)); - return(mus_char_to_bshort(n)); -} - -static int big_or_little_endian_int(const unsigned char *n, bool little) -{ - if (little) return(mus_char_to_lint(n)); - return(mus_char_to_bint(n)); -} - -static unsigned int big_or_little_endian_uint(const unsigned char *n, bool little) -{ - if (little) return(mus_char_to_ulint(n)); - return(mus_char_to_ubint(n)); -} - -static float big_or_little_endian_float(const unsigned char *n, bool little) -{ - if (little) return(mus_char_to_lfloat(n)); - return(mus_char_to_bfloat(n)); -} - -static bool match_four_chars(const unsigned char *head, const unsigned char *match) -{ - return((head[0] == match[0]) && - (head[1] == match[1]) && - (head[2] == match[2]) && - (head[3] == match[3])); -} - -static void write_four_chars(unsigned char *head, const unsigned char *match) -{ - head[0] = match[0]; - head[1] = match[1]; - head[2] = match[2]; - head[3] = match[3]; -} - -const char *mus_header_type_name(int type) -{ - switch (type) - { - case MUS_NEXT: return("Sun/Next"); break; - case MUS_AIFC: return("AIFC"); break; - case MUS_RIFF: return("RIFF"); break; - case MUS_BICSF: return("BICSF"); break; - case MUS_NIST: return("NIST"); break; - case MUS_INRS: return("INRS"); break; - case MUS_ESPS: return("ESPS"); break; - case MUS_SVX: return("SVX8"); break; - case MUS_VOC: return("VOC"); break; - case MUS_SNDT: return("SNDT"); break; - case MUS_RAW: return("raw (no header)"); break; - case MUS_SMP: return("SMP"); break; - case MUS_AVR: return("AVR"); break; - case MUS_IRCAM: return("IRCAM"); break; - case MUS_SD1: return("Sound Designer 1"); break; - case MUS_SPPACK: return("SPPACK"); break; - case MUS_MUS10: return("Mus10"); break; - case MUS_HCOM: return("HCOM"); break; - case MUS_PSION: return("PSION"); break; - case MUS_MAUD: return("MAUD"); break; - case MUS_IEEE: return("IEEE text"); break; - case MUS_MATLAB: return("Matlab"); break; - case MUS_ADC: return("ADC/OGI"); break; - case MUS_MIDI: return("MIDI"); break; - case MUS_SOUNDFONT: return("SoundFont"); break; - case MUS_GRAVIS: return("Gravis Ultrasound patch"); break; - case MUS_COMDISCO: return("Comdisco SPW signal"); break; - case MUS_GOLDWAVE: return("Goldwave sample"); break; - case MUS_SRFS: return("SRFS"); break; - case MUS_MIDI_SAMPLE_DUMP: return("MIDI sample dump"); break; - case MUS_DIAMONDWARE: return("DiamondWare"); break; - case MUS_ADF: return("CSRE adf"); break; - case MUS_SBSTUDIOII: return("SBStudioII"); break; - case MUS_DELUSION: return("Delusion"); break; - case MUS_FARANDOLE: return("Farandole"); break; - case MUS_SAMPLE_DUMP: return("Sample dump"); break; - case MUS_ULTRATRACKER: return("Ultratracker"); break; - case MUS_YAMAHA_TX16W: return("TX-16W"); break; - case MUS_YAMAHA_SY85: return("Sy-85"); break; - case MUS_YAMAHA_SY99: return("Sy-99"); break; - case MUS_KURZWEIL_2000: return("Kurzweil 2000"); break; - case MUS_KORG: return("Korg"); break; - case MUS_MAUI: return("Turtle Beach"); break; - case MUS_IMPULSETRACKER: return("Impulse Tracker"); break; - case MUS_AKAI4: return("AKAI 4"); break; - case MUS_DIGIPLAYER: return("Digiplayer ST3"); break; - case MUS_COVOX: return("Covox V8"); break; - case MUS_AVI: return("AVI"); break; - case MUS_OMF: return("OMF"); break; - case MUS_QUICKTIME: return("Quicktime"); break; - case MUS_ASF: return("asf"); break; - case MUS_AIFF: return("AIFF"); break; - case MUS_PAF: return("Ensoniq Paris"); break; - case MUS_CSL: return("CSL"); break; - case MUS_FILE_SAMP: return("snack SMP"); break; - case MUS_PVF: return("Portable Voice Format"); break; - case MUS_SOUNDFORGE: return("SoundForge"); break; - case MUS_TWINVQ: return("TwinVQ"); break; - case MUS_SDIF: return("IRCAM sdif"); break; - case MUS_NVF: return("Creative NVF"); break; - case MUS_OGG: return("Ogg Vorbis"); break; - case MUS_FLAC: return("Flac"); break; - case MUS_SPEEX: return("Speex"); break; - case MUS_MPEG: return("mpeg"); break; - case MUS_SHORTEN: return("shorten"); break; - case MUS_TTA: return("tta"); break; - case MUS_WAVPACK: return("wavpack"); break; - default: return("unsupported"); break; - } -} - -const char *mus_data_format_name(int format) -{ - switch (format) - { - case MUS_BSHORT: return("big endian short (16 bits)"); break; - case MUS_MULAW: return("mulaw (8 bits)"); break; - case MUS_BYTE: return("signed byte (8 bits)"); break; - case MUS_BFLOAT: return("big endian float (32 bits)"); break; - case MUS_BFLOAT_UNSCALED: return("big endian float (32 bits, unscaled)"); break; - case MUS_BINT: return("big endian int (32 bits)"); break; - case MUS_ALAW: return("alaw (8 bits)"); break; - case MUS_UBYTE: return("unsigned byte (8 bits)"); break; - case MUS_B24INT: return("big endian int (24 bits)"); break; - case MUS_BDOUBLE: return("big endian double (64 bits)"); break; - case MUS_BDOUBLE_UNSCALED: return("big endian double (64 bits, unscaled)"); break; - case MUS_LSHORT: return("little endian short (16 bits)"); break; - case MUS_LINT: return("little endian int (32 bits)"); break; - case MUS_LFLOAT: return("little endian float (32 bits)"); break; - case MUS_LDOUBLE: return("little endian double (64 bits)"); break; - case MUS_LFLOAT_UNSCALED: return("little endian float (32 bits, unscaled)"); break; - case MUS_LDOUBLE_UNSCALED: return("little endian double (64 bits, unscaled)"); break; - case MUS_UBSHORT: return("unsigned big endian short (16 bits)"); break; - case MUS_ULSHORT: return("unsigned little endian short (16 bits)"); break; - case MUS_L24INT: return("little endian int (24 bits)"); break; - case MUS_BINTN: return("normalized big endian int (32 bits)"); break; - case MUS_LINTN: return("normalized little endian int (32 bits)"); break; - default: return("unknown"); break; - } -} - -const char *mus_data_format_short_name(int format) -{ - switch (format) - { - case MUS_BSHORT: return("short int"); break; - case MUS_MULAW: return("mulaw"); break; - case MUS_BYTE: return("signed byte"); break; - case MUS_BFLOAT: return("float"); break; - case MUS_BFLOAT_UNSCALED: return("float unscaled)"); break; - case MUS_BINT: return("int"); break; - case MUS_ALAW: return("alaw"); break; - case MUS_UBYTE: return("unsigned byte"); break; - case MUS_B24INT: return("24-bit int"); break; - case MUS_BDOUBLE: return("double"); break; - case MUS_BDOUBLE_UNSCALED: return("double unscaled"); break; - case MUS_LSHORT: return("short int"); break; - case MUS_LINT: return("int"); break; - case MUS_LFLOAT: return("float"); break; - case MUS_LDOUBLE: return("double"); break; - case MUS_LFLOAT_UNSCALED: return("float unscaled"); break; - case MUS_LDOUBLE_UNSCALED: return("double unscaled"); break; - case MUS_UBSHORT: return("unsigned short"); break; - case MUS_ULSHORT: return("unsigned short"); break; - case MUS_L24INT: return("24-bit int"); break; - case MUS_BINTN: return("normalized int"); break; - case MUS_LINTN: return("normalized int"); break; - default: return("unknown"); break; - } -} - -#if HAVE_RUBY - #define TO_LANG(Str) strdup(xen_scheme_constant_to_ruby(Str)) -#else - #define TO_LANG(Str) Str -#endif - -char *mus_header_type_to_string(int type) -{ - switch (type) - { - case MUS_NEXT: return(TO_LANG(S_mus_next)); - case MUS_AIFF: return(TO_LANG(S_mus_aiff)); - case MUS_AIFC: return(TO_LANG(S_mus_aifc)); - case MUS_RIFF: return(TO_LANG(S_mus_riff)); - case MUS_NIST: return(TO_LANG(S_mus_nist)); - case MUS_IRCAM: return(TO_LANG(S_mus_ircam)); - case MUS_RAW: return(TO_LANG(S_mus_raw)); - case MUS_BICSF: return(TO_LANG(S_mus_bicsf)); - case MUS_VOC: return(TO_LANG(S_mus_voc)); - case MUS_SVX: return(TO_LANG(S_mus_svx)); - case MUS_SOUNDFONT: return(TO_LANG(S_mus_soundfont)); - } - return(NULL); -} - -char *mus_data_format_to_string(int format) -{ - switch (format) - { - case MUS_BSHORT: return(TO_LANG(S_mus_bshort)); - case MUS_LSHORT: return(TO_LANG(S_mus_lshort)); - case MUS_MULAW: return(TO_LANG(S_mus_mulaw)); - case MUS_ALAW: return(TO_LANG(S_mus_alaw)); - case MUS_BYTE: return(TO_LANG(S_mus_byte)); - case MUS_UBYTE: return(TO_LANG(S_mus_ubyte)); - case MUS_BFLOAT: return(TO_LANG(S_mus_bfloat)); - case MUS_LFLOAT: return(TO_LANG(S_mus_lfloat)); - case MUS_BINT: return(TO_LANG(S_mus_bint)); - case MUS_LINT: return(TO_LANG(S_mus_lint)); - case MUS_BINTN: return(TO_LANG(S_mus_bintn)); - case MUS_LINTN: return(TO_LANG(S_mus_lintn)); - case MUS_B24INT: return(TO_LANG(S_mus_b24int)); - case MUS_L24INT: return(TO_LANG(S_mus_l24int)); - case MUS_BDOUBLE: return(TO_LANG(S_mus_bdouble)); - case MUS_LDOUBLE: return(TO_LANG(S_mus_ldouble)); - case MUS_UBSHORT: return(TO_LANG(S_mus_ubshort)); - case MUS_ULSHORT: return(TO_LANG(S_mus_ulshort)); - case MUS_BDOUBLE_UNSCALED: return(TO_LANG(S_mus_bdouble_unscaled)); - case MUS_LDOUBLE_UNSCALED: return(TO_LANG(S_mus_ldouble_unscaled)); - case MUS_BFLOAT_UNSCALED: return(TO_LANG(S_mus_bfloat_unscaled)); - case MUS_LFLOAT_UNSCALED: return(TO_LANG(S_mus_lfloat_unscaled)); - } - return(NULL); -} - -static const char *any_data_format_name(int sndlib_format) -{ - if (MUS_DATA_FORMAT_OK(sndlib_format)) - return(mus_data_format_name(sndlib_format)); - else return(mus_header_original_format_name(mus_header_original_format(), - mus_header_type())); -} - -#define SEEK_FILE_LENGTH(File) lseek(File, 0L, SEEK_END) -static int read_bicsf_header(const char *filename, int chan); - - -/* ------------------------------------ NeXT (or Sun) -------------------------------- - * - * 0: ".snd" - * 4: data_location (bytes) (not necessarily word aligned on Sun) - * 8: data_size (bytes) -- sometimes incorrect ("advisory") - * 12: data format indicator -- see below - * 16: srate (int) - * 20: chans - * 24: comment start - * - * in an AFsp file, the first 4 bytes of the comment are "AFsp", - * for bicsf, the integer at 28 is 107364 or 107415 - * - * on NeXTStep, always big-endian. ".snd"==0x2e736e64 on big-endian machines. - * - * formats are: - * 0 unspecified, 1 mulaw_8, 2 linear_8, 3 linear_16, 4 linear_24, 5 linear_32, 6 float, - * 7 double, 8 indirect, 9 nested, 10 dsp_core, 11 dsp_data_8, 12 dsp_data_16, 13 dsp_data_24, - * 14 dsp_data_32, 16 display, 17 mulaw_squelch, 18 emphasized, 19 compressed, 20 compressed_emphasized - * 21 dsp_commands, 22 dsp_commands_samples, 23 adpcm_g721, 24 adpcm_g722, 25 adpcm_g723, - * 26 adpcm_g723_5, 27 alaw_8, 28 aes, 29 delat_mulaw_8 - * internal Snd(lib)-only formats: - * 30: mus_lint, 31: mus_lfloat, - * 32: mus_bintn, 33: mus_lintn, - * 34: mus_ldouble and others... (added by me for Snd internal use) - */ - -/* according to the file /usr/share/magic, the DECN versions were little endian */ - -static int read_next_header(const char *filename, int chan) -{ - int maybe_bicsf, err = MUS_NO_ERROR, i; - type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); - data_location = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); - if (data_location < 24) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data location: " OFF_TD "?", filename, data_location)); - data_size = mus_char_to_bint((unsigned char *)(hdrbuf + 8)); - /* can be bogus -- fixup if possible */ - true_file_length = SEEK_FILE_LENGTH(chan); - if ((data_size <= 24) || (data_size > true_file_length)) - data_size = (true_file_length - data_location); - else - { - if (true_file_length > (off_t)(1 << 31)) - data_size = true_file_length - data_location; /* assume size field overflowed 32 bits */ - } - original_data_format = mus_char_to_bint((unsigned char *)(hdrbuf + 12)); - switch (original_data_format) - { - case 1: data_format = MUS_MULAW; break; - case 2: data_format = MUS_BYTE; break; /* some sound files assume MUS_UBYTE here! (NAS from 1994 X11R6 contrib) */ - case 3: data_format = MUS_BSHORT; break; - case 4: data_format = MUS_B24INT; break; - case 5: data_format = MUS_BINT; break; - case 6: data_format = MUS_BFLOAT; break; - case 7: data_format = MUS_BDOUBLE; break; - case 18: data_format = MUS_BSHORT; break; /* "emphasized": Xavier Serra's de-emphasis filter: y(n) = x(n) + .9 y(n-1) */ - case 27: data_format = MUS_ALAW; break; - case 30: data_format = MUS_LINT; break; /* from here on, for Snd's internal benefit -- these are probably not used elsewhere */ - case 31: data_format = MUS_LFLOAT; break; - case 32: data_format = MUS_BINTN; break; - case 33: data_format = MUS_LINTN; break; - case 34: data_format = MUS_LDOUBLE; break; - case 35: data_format = MUS_ULSHORT; break; - case 36: data_format = MUS_UBSHORT; break; - case 37: data_format = MUS_LFLOAT_UNSCALED; break; - case 38: data_format = MUS_BFLOAT_UNSCALED; break; - case 39: data_format = MUS_LDOUBLE_UNSCALED; break; - case 40: data_format = MUS_BDOUBLE_UNSCALED; break; - case 41: data_format = MUS_LSHORT; break; - case 42: data_format = MUS_L24INT; break; - case 43: data_format = MUS_UBYTE; break; - default: data_format = MUS_UNKNOWN; break; - } - srate = mus_char_to_bint((unsigned char *)(hdrbuf + 16)); - chans = mus_char_to_bint((unsigned char *)(hdrbuf + 20)); - comment_start = 0; - comment_end = 0; - for (i = 24; i < data_location - 1; i++) - if (hdrbuf[i] == '\0') - break; - else - { - if (hdrbuf[i] != ' ') - { - comment_start = i; - comment_end = data_location - 1; - break; - } - } - if (comment_end < comment_start) comment_end = comment_start; - maybe_bicsf = mus_char_to_bint((unsigned char *)(hdrbuf + 28)); - if (maybe_bicsf == 107364) err = read_bicsf_header(filename, chan); - data_size = mus_bytes_to_samples(data_format, data_size); - return(err); -} - -static int sndlib_format_to_next(int format) -{ - switch (format) - { - case MUS_MULAW: return(1); break; - case MUS_BYTE: return(2); break; - case MUS_BSHORT: return(3); break; - case MUS_B24INT: return(4); break; - case MUS_BINT: return(5); break; - case MUS_BFLOAT: return(6); break; - case MUS_BDOUBLE: return(7); break; - case MUS_ALAW: return(27); break; - case MUS_LINT: return(30); break; /* see above */ - case MUS_LFLOAT: return(31); break; - case MUS_BINTN: return(32); break; - case MUS_LINTN: return(33); break; - case MUS_LDOUBLE: return(34); break; - case MUS_ULSHORT: return(35); break; - case MUS_UBSHORT: return(36); break; - case MUS_LFLOAT_UNSCALED: return(37); break; - case MUS_BFLOAT_UNSCALED: return(38); break; - case MUS_LDOUBLE_UNSCALED: return(39); break; - case MUS_BDOUBLE_UNSCALED: return(40); break; - case MUS_LSHORT: return(41); break; - case MUS_L24INT: return(42); break; - case MUS_UBYTE: return(43); break; - default: - return(mus_error(MUS_UNSUPPORTED_DATA_FORMAT, "Next header: can't write data format: %d (%s)", - format, - any_data_format_name(format))); - break; - } -} - -#if MUS_DEBUGGING - #define CHK_WRITE(Fd, Buf, Len) \ - do { size_t bytes = 0; \ - if (((Len) > 0) && ((bytes = write(Fd, Buf, Len)) == 0)) \ - fprintf(stderr, "%s[%d]: header write error (wrote: %d != requested: %d)", c__FUNCTION__, __LINE__, (int)bytes, (int)(Len)); \ - } while (0) - #define CHK_READ(Fd, Buf, Len) \ - do { size_t bytes = 0; \ - if (((Len) > 0) && ((bytes = read(Fd, Buf, (Len))) == 0)) \ - fprintf(stderr, "%s[%d]: header read error (read %d != requested %d)", c__FUNCTION__, __LINE__, (int)bytes, (int)(Len)); \ - } while (0) -#else - #define CHK_WRITE(Fd, Buf, Len) do {if (((Len) > 0) && (write(Fd, Buf, Len) == 0)) fprintf(stderr, "header write error");} while (0) - #define CHK_READ(Fd, Buf, Len) do {if (((Len) > 0) && (read(Fd, Buf, Len) == 0)) fprintf(stderr, "header read error");} while (0) -#endif - -static void write_next_comment(int fd, const char *comment, int len, int loc) -{ - if (len > 0) - CHK_WRITE(fd, (unsigned char *)comment, len); - len = loc - (len + 24); - if (len > 0) - { - unsigned char *combuf; - combuf = (unsigned char *)CALLOC(len, sizeof(char)); - CHK_WRITE(fd, combuf, len); - FREE(combuf); - } -} - -int mus_header_write_next_header(int chan, int wsrate, int wchans, int loc, int siz, int format, const char *comment, int len) -{ - int i, j; - write_four_chars((unsigned char *)hdrbuf, I_DSND); /* ".snd" */ - i = len / 4; - j = 24 + (4 * (i + 1)); - if (loc < j) loc = j; - mus_bint_to_char((unsigned char *)(hdrbuf + 4), loc); - mus_bint_to_char((unsigned char *)(hdrbuf + 8), siz); - mus_bint_to_char((unsigned char *)(hdrbuf + 12), sndlib_format_to_next(format)); - mus_bint_to_char((unsigned char *)(hdrbuf + 16), wsrate); - mus_bint_to_char((unsigned char *)(hdrbuf + 20), wchans); - CHK_WRITE(chan, hdrbuf, 24); - write_next_comment(chan, comment, len, loc); - data_location = loc; - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ AIFF ------------------------------------ - * - * 0: "FORM" - * 4: size (bytes) - * 8: "AIFF" or "AIFC" -- the latter includes compressed formats (list extended for 8.5 Sound.h) - * - * Thereafter the file is organized into "chunks", each chunk being - * a 4-byte identifer followed by an int (4-bytes) giving the chunk size - * not including the 8-byte header. AIFF data is signed. If the chunk - * size is odd, an extra (unaccounted-for) null byte is added at the end. - * - * The chunks we want are "COMM", "SSND", and "APPL". - * - * COMM: 0: chans - * 2: frames - * 6: bits per sample - * 8: srate as 80-bit IEEE float - * then if AIFC (not AIFF), 4 bytes giving compression id ("NONE"=not compressed) - * followed by Pascal string giving long name of compression type - * - * SSND: 0: data location (offset within SSND chunk) - * - * Other chunks include: ANNO: a comment, INST: loop control, MARK: marker, MIDI: midi, - * COMT: comment (max 65536 chars), NAME: sound name, AUTH: author's name - * (c), AESD: recording data, APPL: application specific stuff - * "MARK" size short-#marks {marks} -- latter are short-ID long-position pstring-name. - * "INST" size chars[baseNote detune lowNote highNote lowVelocity HighVelocity] short-gain loops[sustain release] - * loop: short-playMode marker-begin marker-end (signed?) shorts) - * playMode: 0 no loop, 1 forward loop, 2 forward/backward loop - * chars are MIDI data (detune is in cents) - * "MIDI" size MIDI-data... - * "AESD" size AES Channel Status Data (24 bytes as specified by AES) - * see "AES: Guidelines for the use of the AES3 interface" - * byte 0: bit 0: 0 = consumer, 1 = pro - * bit 1: 0 = audio, 1 = non-audio - * bits 2:4: emphasis: 0:none, 4:none, 6:CD, 7:CCITT J17 - * bits 6:7: srate: 00 = 48KHz, 01 = 48, 10 = 44.1, 11 = 32 - * byte 1: bits 0:3: chans: 2:mono, else stereo - * byte 2 for word size stuff (always ends up 16-bit): bits 3-5 = sample length where 4 = 16-bit - * byte 3: multi-channels modes, 4: AES sync ref, 5:unused, 6-9:ASCII source ID, 10-13:ASCII destination ID - * byte 14-17:local sample addr, 18-21:time of day addr, then CRC checks - * "APPL" size signature data - * "COMT" size short-#comments {comments} -- the latter are long-time marker short-text-length char-text - * time is in seconds since 1-Jan-1904 - * "NAME"/"AUTH"/"(c) "/"ANNO" size char-name - * "FVER" size(4) AIFC-format-version -- currently always 0xA2805140 - * "SAXL" -- a desperate kludge to get around Apple's own compression schemes! - * - * always big-endian - * There was also (briefly) an AIFS file, now deprecated. - */ - -/* ieee-80 conversions -- design by committee! */ -/* this code taken from CSound sources -- apparently originally written by Malcolm Slaney at Apple */ - -#define ULPOW2TO31 ((unsigned int)0x80000000) -#define DPOW2TO31 ((double)2147483648.0) /* 2^31 */ - -static double myUlongToDouble(unsigned int ul) -{ - double val; - if(ul & ULPOW2TO31) val = DPOW2TO31 + (ul & (~ULPOW2TO31)); - else val = ul; - return val; -} - -static unsigned int myDoubleToUlong(double val) -{ - unsigned int ul; - if(val < DPOW2TO31) ul = (unsigned int)val; - else ul = ULPOW2TO31 | (unsigned int)(val-DPOW2TO31); - return ul; -} - -static double ieee_80_to_double(unsigned char *p) -{ - unsigned char sign; - short lexp = 0; - unsigned int mant1 = 0; - unsigned int mant0 = 0; - lexp = *p++; lexp <<= 8; lexp |= *p++; sign = (lexp & 0x8000) ? 1 : 0; lexp &= 0x7FFF; - mant1 = *p++; mant1 <<= 8; mant1 |= *p++; mant1 <<= 8; mant1 |= *p++; mant1 <<= 8; mant1 |= *p++; - mant0 = *p++; mant0 <<= 8; mant0 |= *p++; mant0 <<= 8; mant0 |= *p++; mant0 <<= 8; mant0 |= *p++; - if(mant1 == 0 && mant0 == 0 && lexp == 0 && sign == 0) - return 0.0; - else - { - double val; - val = myUlongToDouble(mant0) * pow(2.0, -63.0); - val += myUlongToDouble(mant1) * pow(2.0, -31.0); - val *= pow(2.0, ((double) lexp) - 16383.0); - return sign ? -val : val; - } -} - -static void double_to_ieee_80(double val, unsigned char *p) -{ - short lexp = 0; - unsigned char sign = 0; - unsigned int mant1 = 0; - unsigned int mant0 = 0; - if(val < 0.0) { sign = 1; val = -val; } - if(val != 0.0) /* val identically zero -> all elements zero */ - { - lexp = (short)(log(val) / log(2.0) + 16383.0); - val *= pow(2.0, 31.0 + 16383.0 - (double)lexp); - mant1 = myDoubleToUlong(val); - val -= myUlongToDouble(mant1); - val *= pow(2.0, 32.0); - mant0 = myDoubleToUlong(val); - } - *p++ = ((sign << 7) | (lexp >> 8)); *p++ = 0xFF & lexp; - *p++ = 0xFF & (mant1 >> 24); *p++ = 0xFF & (mant1 >> 16); *p++ = 0xFF & (mant1 >> 8); *p++ = 0xFF & (mant1); - *p++ = 0xFF & (mant0 >> 24); *p++ = 0xFF & (mant0 >> 16); *p++ = 0xFF & (mant0 >> 8); *p++ = 0xFF & (mant0); -} - - -static off_t update_form_size, update_frames_location, update_ssnd_location; - -static int seek_and_read(int chan, unsigned char *buf, off_t offset, int nbytes) -{ - if (offset < 0) return(-1); - lseek(chan, offset, SEEK_SET); - return(read(chan, buf, nbytes)); -} - -static int read_aiff_marker(int m, unsigned char *buf) -{ - int psize; - marker_ids[m] = mus_char_to_bshort((unsigned char *)buf); - marker_positions[m] = mus_char_to_bint((unsigned char *)(buf + 2)); - psize = (int)buf[6] + 1; - if (psize & 1) psize++; - return(psize+6); -} - -static int read_aiff_header(const char *filename, int chan, int overall_offset) -{ - /* we know we have checked for FORM xxxx AIFF|AIFC when we arrive here */ - /* as far as I can tell, the COMM block has the header data we seek, and the SSND block has the sound data */ - int chunksize, chunkloc, i, j, ssnd_bytes = 0; - bool happy, got_comm = false; - off_t offset; - type_specifier = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 8 + overall_offset)); - update_ssnd_location = 0; - chunkloc = 12 + overall_offset; - offset = 0; - for (i = 0; i < AUX_COMMENTS; i++) aux_comment_start[i] = 0; - data_format = MUS_BSHORT; - srate = 0; - chans = 0; - happy = true; - true_file_length = SEEK_FILE_LENGTH(chan); - update_form_size = mus_char_to_bint((unsigned char *)(hdrbuf + 4 + overall_offset)); /* should be file-size-8 unless there are multiple forms */ - while (happy) - { - offset += chunkloc; - if (seek_and_read(chan, (unsigned char *)hdrbuf, offset, 32) <= 0) - { - if ((got_comm) && (data_location > 0)) - { - mus_print("%s, aiff header: chunks confused at " OFF_TD "; will try to continue", filename, offset); - break; - } - return(mus_error(MUS_HEADER_READ_FAILED, "%s, aiff header: chunks confused at " OFF_TD , filename, offset)); - } - chunksize = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); - if ((chunksize == 0) && /* can be empty data chunk */ - (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) - break; - /* fprintf(stderr,"chunk: %c%c%c%c for %d\n", hdrbuf[0], hdrbuf[1], hdrbuf[2], hdrbuf[3], chunksize); */ - if (match_four_chars((unsigned char *)hdrbuf, I_COMM)) - { - int frames; - got_comm = true; - chans = mus_char_to_bshort((unsigned char *)(hdrbuf + 8)); - frames = mus_char_to_ubint((unsigned char *)(hdrbuf + 10)); /* was bint 27-Jul-01 */ - update_frames_location = 10 + offset; - original_data_format = mus_char_to_bshort((unsigned char *)(hdrbuf + 14)); - if ((original_data_format % 8) != 0) - { - /* weird sizes are legal -- - * these samples are left-justified (and zero padded on the right), so - * we can handle any bit size by rounding up to the nearest byte. - */ - original_data_format = 8 * (1 + (original_data_format >> 3)); - } - if (original_data_format == 8) data_format = MUS_BYTE; - else if (original_data_format == 16) data_format = MUS_BSHORT; - else if (original_data_format == 24) data_format = MUS_B24INT; - else if (original_data_format == 32) data_format = MUS_BINT; - else if (original_data_format == 64) data_format = MUS_BDOUBLE; - else return(mus_error(MUS_HEADER_READ_FAILED, "%s: bits per sample: %d?", filename, mus_char_to_bshort((unsigned char *)(hdrbuf + 14)))); - srate = (int)ieee_80_to_double((unsigned char *)(hdrbuf + 16)); - /* if AIFC, compression type over-rides (possibly bogus) original_data_format */ - if (type_specifier == mus_char_to_uninterpreted_int((unsigned const char *)I_AIFC)) - { - /* some aifc files assume the compression field is a new and very weird chunk!! -- surely a bug? */ - /* AIFF spec says COMM size is always 18, but this is amended in the newer AIFC spec */ - if (chunksize == 18) chunksize += (5 + ((int)hdrbuf[30])); /* 5 = chunk header length in this case */ - if ((!(match_four_chars((unsigned char *)(hdrbuf + 26), I_NONE))) && - (!(match_four_chars((unsigned char *)(hdrbuf + 26), I_twos)))) - { - original_data_format = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 26)); - if ((match_four_chars((unsigned char *)(hdrbuf + 26), I_ALAW)) || - (match_four_chars((unsigned char *)(hdrbuf + 26), I_alaw))) - data_format = MUS_ALAW; - else - { - if ((match_four_chars((unsigned char *)(hdrbuf + 26), I_ULAW)) || - (match_four_chars((unsigned char *)(hdrbuf + 26), I_ulaw))) - data_format = MUS_MULAW; - else - { - if ((match_four_chars((unsigned char *)(hdrbuf + 26), I_sowt)) || - (match_four_chars((unsigned char *)(hdrbuf + 26), I_ni23))) - { - /* Sound.h sez sowt is just 16-bit format */ - if (data_format == MUS_BSHORT) data_format = MUS_LSHORT; - else if (data_format == MUS_B24INT) data_format = MUS_L24INT; - else if (data_format == MUS_BINT) data_format = MUS_LINT; - } - else - { - if (match_four_chars((unsigned char *)(hdrbuf + 26), I_raw_)) - { - if (data_format == MUS_BYTE) data_format = MUS_UBYTE; - else if (data_format == MUS_BSHORT) data_format = MUS_UBSHORT; - } - else - { - if ((match_four_chars((unsigned char *)(hdrbuf + 26), I_fl32)) || - (match_four_chars((unsigned char *)(hdrbuf + 26), I_FL32))) - data_format = MUS_BFLOAT; - else - { - if (match_four_chars((unsigned char *)(hdrbuf + 26), I_fl64)) - data_format = MUS_BDOUBLE; - else - { - if (match_four_chars((unsigned char *)(hdrbuf + 26), I_ima4)) - { - block_align = 34; - original_data_format = MUS_AIFF_IMA_ADPCM; - } - else - { - if (match_four_chars((unsigned char *)(hdrbuf + 26), I_in32)) - data_format = MUS_BINT; - else - { - if (match_four_chars((unsigned char *)(hdrbuf + 26), I_in24)) - data_format = MUS_B24INT; - else - { - /* others from Sound.h: - 0x6D730002, -- Microsoft ADPCM - ACM code 2 - 0x6D730011, -- DVI/Intel IMA ADPCM - ACM code 17 - 'MAC3' -- MACE 3:1 - 'MAC6' -- MACE 6:1 - 'cdx4' -- CD/XA 4:1 - 'cdx2' -- CD/XA 2:1 - 'dvca' -- DV Audio - 'QDMC' -- QDesign music - 'QDM2' -- QDesign2 music - 'Qclp' -- QUALCOMM PureVoice - 0x6D730055 -- MPEG Layer 3, CBR only (pre QT4.1) - '.mp3' -- MPEG Layer 3, CBR & VBR (QT4.1 and later) - */ - data_format = MUS_UNKNOWN; - } - } - } - } - } - } - } - } - } - } - } - data_size = (frames * mus_bytes_per_sample(data_format) * chans); - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_SSND)) - { - if (data_location != 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: two SSND chunks found", filename)); - update_ssnd_location = offset + 4; - data_location = mus_char_to_bint((unsigned char *)(hdrbuf + 8)) + offset + 16; /* Baroque! */ - /* offset is where the hdrbuf is positioned in the file, the sound data offset itself is at loc+8 and the */ - /* 0-based location of the sound data is at the end of the chunk = 16 (8 = header+4 = offset+4 = blocksize) */ - /* the next int can be the block size if the data is block-aligned */ - /* only one SSND per AIFF is allowed */ - if (chunksize == 0) break; /* this may happen while pre-reading an in-progress output file for updating */ - ssnd_bytes = offset + chunksize - data_location + 8; - } - else - { - if ((match_four_chars((unsigned char *)hdrbuf, I_ANNO)) || - (match_four_chars((unsigned char *)hdrbuf, I_COMT)) || - (match_four_chars((unsigned char *)hdrbuf, I_NAME)) || - (match_four_chars((unsigned char *)hdrbuf, I_AUTH))) - { - j = 0; - for (i = 0; i < AUX_COMMENTS; i++) - if (aux_comment_start[i] == 0) - { - j = i; - break; - } - if (j >= AUX_COMMENTS) - { - mus_print("read_aiff_header: ran out of auxiliary comment space"); - j = 0; - } - aux_comment_start[j] = offset + 8; - if (match_four_chars((unsigned char *)hdrbuf, I_COMT)) - aux_comment_start[j] += 8; /* skip time stamp and markerId (not ID, I assume!) */ - aux_comment_end[j] = offset + 7 + chunksize; - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_APPL)) - { - if (match_four_chars((unsigned char *)(hdrbuf + 8), I_MUS_)) - { - /* my own chunk has the arbitrary length comment I use (actually the ASCII */ - /* representation of a lisp program evaluated in the CLM package) to handle mix et al. */ - /* It is nothing more than the actual string -- remember to pad to even length here. */ - comment_start = offset + 12; - comment_end = comment_start + chunksize - 5; - } - else - { - if ((match_four_chars((unsigned char *)(hdrbuf + 8), I_SU7M)) || - (match_four_chars((unsigned char *)(hdrbuf + 8), I_SU7R))) - { - mus_print("this is an SU700 ssp file?"); - data_location = 512; - chans = 1; - /* actually SU7M and SU7R point to 2 chan data as separate chunks */ - } - } - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_INST)) - { - base_note = hdrbuf[8]; - base_detune = hdrbuf[9]; - loop_modes[0] = mus_char_to_bshort((unsigned char *)(hdrbuf + 16)); - loop_starts[0] = mus_char_to_bshort((unsigned char *)(hdrbuf + 18)); - loop_ends[0] = mus_char_to_bshort((unsigned char *)(hdrbuf + 20)); - loop_modes[1] = mus_char_to_bshort((unsigned char *)(hdrbuf + 22)); - loop_starts[1] = mus_char_to_bshort((unsigned char *)(hdrbuf + 24)); - loop_ends[1] = mus_char_to_bshort((unsigned char *)(hdrbuf + 26)); - /* these are mark numbers */ - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_MARK)) - { - int num_marks, m, moff, msize; - /* unsigned short #marks, each mark: id pos name (pstring damn it) */ - num_marks = mus_char_to_ubshort((unsigned char *)(hdrbuf + 8)); - if (num_marks > markers) - { - if (markers > 0) - { - if (marker_ids) FREE(marker_ids); - if (marker_positions) FREE(marker_positions); - } - markers = num_marks; - marker_ids = (int *)CALLOC(markers, sizeof(int)); - marker_positions = (int *)CALLOC(markers, sizeof(int)); - } - moff = 10; - for (m = 0; m < num_marks; m++) - { - if (seek_and_read(chan, (unsigned char *)hdrbuf, offset + moff, 8) > 0) - { - msize = read_aiff_marker(m, (unsigned char *)hdrbuf); - moff += msize; - } - } - } - } - } - } - } - } - chunkloc = (8 + chunksize); - if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ - if ((offset + chunkloc) >= update_form_size) happy = false; - } - if (!got_comm) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no COMM chunk", filename)); - if (data_location == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no SSND (data) chunk", filename)); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - if ((data_size > ssnd_bytes) && (data_format != MUS_UNKNOWN)) - data_size = ssnd_bytes; - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - -static int sndlib_format_to_aiff_bits(int format) -{ - switch (format) - { - case MUS_BSHORT: case MUS_LSHORT: case MUS_UBSHORT: case MUS_ULSHORT: return(16); break; - case MUS_B24INT: case MUS_L24INT: return(24); break; - case MUS_BINT: case MUS_LINT: case MUS_BFLOAT: case MUS_LFLOAT: return(32); break; - case MUS_BDOUBLE: case MUS_LDOUBLE: return(64); break; - case MUS_BYTE: case MUS_UBYTE: case MUS_MULAW: case MUS_ALAW: return(8); break; - default: - return(mus_error(MUS_UNSUPPORTED_DATA_FORMAT, "aiff header: can't write data format: %d (%s)", - format, - any_data_format_name(format))); - break; - } -} - -static const char *sndlib_format_to_aifc_name(int format) -{ - switch (format) - { - case MUS_BSHORT: case MUS_B24INT: case MUS_BINT: case MUS_BYTE: return((const char *)I_NONE); break; /* use in24 and in32? */ - case MUS_LSHORT: case MUS_L24INT: case MUS_LINT: return((const char *)I_sowt); break; /* should this use ni23? */ - case MUS_BFLOAT: return((const char *)I_fl32); break; - case MUS_BDOUBLE: return((const char *)I_fl64); break; - case MUS_UBYTE: case MUS_UBSHORT: return((const char *)I_raw_); break; - case MUS_MULAW: return((const char *)I_ulaw); break; - case MUS_ALAW: return((const char *)I_alaw); break; - default: return((const char *)I_NONE); break; - } -} - -static int write_aif_header(int chan, int wsrate, int wchans, int siz, int format, const char *comment, int len, bool aifc_header) -{ - /* we write the simplest possible AIFC header: AIFC | COMM | APPL-MUS_ if needed | SSND eof. */ - /* the assumption being that we're going to be appending sound data once the header is out */ - /* INST and MARK chunks added Jul-95 for various programs that expect them (MixView). */ - int i, j, lenhdr, lenloop, curend, extra; /* set aifc to 0 to get old-style AIFF header */ - char *str; - lenhdr = 0; - extra = 0; - curend = 0; - lenloop = 38; - if ((loop_modes[0] != 0) || (loop_modes[1] != 0)) lenloop = 42 + 28; - if (len != 0) - { - lenhdr = 12; - if ((len % 4) != 0) - extra = (4 - (len % 4)); - } - write_four_chars((unsigned char *)hdrbuf, I_FORM); - if (aifc_header) - mus_bint_to_char((unsigned char *)(hdrbuf + 4), len + 30 + 16 + lenloop + siz + lenhdr + extra + 12 + 10); - else mus_bint_to_char((unsigned char *)(hdrbuf + 4), len + 30 + 16 + lenloop + siz + lenhdr + extra); - /* - * comment length + 4 for AIFF 18+8 for I_COMM info + 16 for I_SSND info + 38 for INST and MARK + - * siz for data + 12 for comment header if any + padding == total size - 8 (i.e. FORM header). - * INST+MARK (38) added 3-Jul-95 for Notam software compatibility - */ - if (aifc_header) - { - write_four_chars((unsigned char *)(hdrbuf + 8), I_AIFC); - CHK_WRITE(chan, hdrbuf, 12); - curend = 12; - write_four_chars((unsigned char *)hdrbuf, I_FVER); - mus_bint_to_char((unsigned char *)(hdrbuf + 4), 4); - mus_bint_to_char((unsigned char *)(hdrbuf + 8), 0xA2805140); - } - else write_four_chars((unsigned char *)(hdrbuf + 8), I_AIFF); - write_four_chars((unsigned char *)(hdrbuf + 12), I_COMM); - if (aifc_header) - mus_bint_to_char((unsigned char *)(hdrbuf + 16), 18 + 10); - else mus_bint_to_char((unsigned char *)(hdrbuf + 16), 18); - mus_bshort_to_char((unsigned char *)(hdrbuf + 20), (short)wchans); - if (wchans > 0) - mus_bint_to_char((unsigned char *)(hdrbuf + 22), siz / (wchans * mus_bytes_per_sample(format))); - mus_bshort_to_char((unsigned char *)(hdrbuf + 26), sndlib_format_to_aiff_bits(format)); - double_to_ieee_80((double)wsrate, (unsigned char *)(hdrbuf + 28)); - if (aifc_header) - { - str = (char *)sndlib_format_to_aifc_name(format); - write_four_chars((unsigned char *)(hdrbuf + 38), (const unsigned char *)str); - (*(unsigned char *)(hdrbuf + 42)) = 4; /* final pad null not accounted-for */ - write_four_chars((unsigned char *)(hdrbuf + 43), (const unsigned char *)str); - (*(unsigned char *)(hdrbuf + 47)) = 0; - i = 48; - } - else i = 38; - if (len != 0) - { - if (aifc_header) - { - write_four_chars((unsigned char *)(hdrbuf + 48), I_APPL); - mus_bint_to_char((unsigned char *)(hdrbuf + 52), len + 4 + extra); - write_four_chars((unsigned char *)(hdrbuf + 56), I_MUS_); - i = 60; - } - else - { - write_four_chars((unsigned char *)(hdrbuf + 38), I_APPL); - mus_bint_to_char((unsigned char *)(hdrbuf + 42), len + 4 + extra); - write_four_chars((unsigned char *)(hdrbuf + 46), I_MUS_); - i = 50; - } - for (j = 0; j < len; j++) - { - if (i == HDRBUFSIZ) - { - curend += HDRBUFSIZ; - CHK_WRITE(chan, hdrbuf, HDRBUFSIZ); - i = 0; - } - hdrbuf[i] = comment[j]; - i++; - } - if (extra != 0) - { - if ((i + extra) > HDRBUFSIZ) - { - curend += i; - CHK_WRITE(chan, hdrbuf, i); - i = 0; - } - for (j = 0; j < extra; j++) - { - hdrbuf[i] = 0; - i++; - } - } - } - curend += i; - CHK_WRITE(chan, hdrbuf, i); - if ((loop_modes[0] == 0) && (loop_modes[1] == 0)) - { - write_four_chars((unsigned char *)hdrbuf, I_MARK); /* SoundHack includes a blank MARK chunk for some reason */ - mus_bint_to_char((unsigned char *)(hdrbuf + 4), 2); - mus_bshort_to_char((unsigned char *)(hdrbuf + 8), 0); - write_four_chars((unsigned char *)(hdrbuf + 10), I_INST); - mus_bint_to_char((unsigned char *)(hdrbuf + 14), 20); - mus_bint_to_char((unsigned char *)(hdrbuf + 18), 0x3c00007f); /* base-note = middle C, detune = 0, lownote = 0, highnote = 0x7f */ - mus_bint_to_char((unsigned char *)(hdrbuf + 22), 0x017f0000); /* lowvelocity = 1, highvelocity = 0x7f, gain = 0 */ - mus_bint_to_char((unsigned char *)(hdrbuf + 26), 0); /* no loops */ - mus_bint_to_char((unsigned char *)(hdrbuf + 30), 0); - mus_bint_to_char((unsigned char *)(hdrbuf + 34), 0); - CHK_WRITE(chan, hdrbuf, 38); - curend += 38; - } - else - { - write_four_chars((unsigned char *)hdrbuf, I_MARK); - mus_bint_to_char((unsigned char *)(hdrbuf + 4), 8 * 4 + 2); /* 2 for mark#, then 2:id + 4:pos + 2:pstr */ - /* loop_info: 0..3 are markers positions (ids 1..4) */ - mus_bshort_to_char((unsigned char *)(hdrbuf + 8), 4); - for (j = 0; j < 4; j++) - { - mus_bshort_to_char((unsigned char *)(hdrbuf + 10 + 8 * j), j + 1); - switch (j) - { - case 0: mus_bint_to_char((unsigned char *)(hdrbuf + 10 + 8 * j + 2), loop_starts[0]); break; - case 1: mus_bint_to_char((unsigned char *)(hdrbuf + 10 + 8 * j + 2), loop_ends[0]); break; - case 2: mus_bint_to_char((unsigned char *)(hdrbuf + 10 + 8 * j + 2), loop_starts[1]); break; - case 3: mus_bint_to_char((unsigned char *)(hdrbuf + 10 + 8 * j + 2), loop_ends[1]); break; - } - mus_bshort_to_char((unsigned char *)(hdrbuf + 10 + 8 * j + 6), 0); - } - CHK_WRITE(chan, hdrbuf, 42); - curend += 42; - write_four_chars((unsigned char *)hdrbuf, I_INST); - mus_bint_to_char((unsigned char *)(hdrbuf + 4), 20); - mus_bint_to_char((unsigned char *)(hdrbuf + 8), 0x3c00007f); - mus_bint_to_char((unsigned char *)(hdrbuf + 12), 0x017f0000); - hdrbuf[8] = (unsigned char)(base_note); - hdrbuf[9] = (unsigned char)(base_detune); - mus_bshort_to_char((unsigned char *)(hdrbuf + 16), loop_modes[0]); - mus_bshort_to_char((unsigned char *)(hdrbuf + 18), 1); - mus_bshort_to_char((unsigned char *)(hdrbuf + 20), 2); - mus_bshort_to_char((unsigned char *)(hdrbuf + 22), loop_modes[1]); - mus_bshort_to_char((unsigned char *)(hdrbuf + 24), 3); - mus_bshort_to_char((unsigned char *)(hdrbuf + 26), 4); - CHK_WRITE(chan, hdrbuf, 28); - curend += 28; - } - write_four_chars((unsigned char *)(hdrbuf), I_SSND); - mus_bint_to_char((unsigned char *)(hdrbuf + 4), siz + 8); - mus_bint_to_char((unsigned char *)(hdrbuf + 8), 0); /* "offset" */ - mus_bint_to_char((unsigned char *)(hdrbuf + 12), 0); /* "blocksize " */ - CHK_WRITE(chan, hdrbuf, 16); - data_location = 16 + curend; - return(MUS_NO_ERROR); -} - -char *mus_header_aiff_aux_comment(const char *name, off_t *starts, off_t *ends) -{ - /* AIFC: look for aux comments (ANNO chunks) */ - char *sc = NULL; - if ((starts) && (starts[0] != 0)) - { - off_t full_len; - int fd, i; - fd = mus_file_open_read(name); - if (fd == -1) return(NULL); - full_len = 0; - for (i = 0; i < AUX_COMMENTS; i++) - if ((starts[i] > 0) && - (starts[i] < ends[i])) - full_len += (ends[i] - starts[i] + 3); - if (full_len > 0) - { - off_t sc_len; - sc = (char *)CALLOC(full_len, sizeof(char)); - sc_len = 0; - for (i = 0; i < AUX_COMMENTS; i++) - { - off_t start, end, len; - start = starts[i]; - end = ends[i]; - if ((start > 0) && (start < end)) - { - int j; - len = end - start + 1; - lseek(fd, start, SEEK_SET); - CHK_READ(fd, (char *)(sc + sc_len), len); - for (j = 0; j < len; j++) - if (sc[j + sc_len] == 0) - sc[j + sc_len] = ' '; - sc_len += len; - sc[sc_len++] = '\n'; - } - } - } - CLOSE(fd, name); - } - return(sc); -} - -/* ------------------------------------ RIFF (wave) ------------------------------------ - * - * see ftp.microsoft.com:/SoftLib/MSLFILES/MDRK.EXE (also MMSYSTEM.H and MMREG.H) - * ftp://ftp.isi.edu/in-notes/rfc2361.txt - * - * 0: "RIFF" (little-endian) or "RIFX" (big-endian) - * 4: size - * 8: "WAVE" ("RMID" = midi data, others are AVI, CPPO, ACON, DLS? etc) - * AVI chunk can include audio data - * - * rest very similar to AIFF (odd-sized chunks are padded) - * - * fmt 0: format code (see below) - * 2: chans - * 4: srate (long) - * 8: average rate "for buffer estimation" - * 12: alignment "block size" - * 14: data size (bits per sample) (PCM only) - * 16: count (bytes) of extra info in the header (i.e. trailing info added to this basic header) - * 20: samples per block (short) in dvi_adpcm - * - * formats are: 0: unknown, 1: PCM, 2: ADPCM, 3: IEEE float, 4: VSELP, 5: IBM_CVSD, 6: alaw, 7: mulaw - * 0x10: OKI_ADPCM, 0x11: DVI_ADPCM, 0x12: MediaSpace_ADPCM, - * 0x13: Sierra_ADPCM, 0x14: G723_ADPCM, 0x15: DIGISTD, 0x16: DIGIFIX, 0x17: Dialogic ADPCM, - * 0x18: Mediavision ADPCM, 0x19: HP cu codec, - * 0x20: Yamaha_ADPCM, 0x21: SONARC, 0x22: DSPGroup_TrueSpeech - * 0x23: EchoSC1, 0x24: AudioFile_AF36, 0x25: APTX, 0x26: AudioFile_AF10 - * 0x27: prosody 1612, 0x28: lrc, - * 0x30: Dolby_Ac2, 0x31: GSM610, 0x32: MSN audio codec, 0x33: Antext_ADPCM, 0x34: Control_res_vqlpc, - * 0x35: DIGIREAL, 0x36: DIGIADPCM, 0x37: Control_res_cr10, 0x38: NMS_VBXADPCM, 0x39:Roland rdac, - * 0x3a: echo sc3, 0x3b: Rockwell adpcm, 0x3c: Rockwell digitalk codec, 0x3d: Xebec, - * 0x40: G721_ADPCM, 0x41: G728 CELP, 0x42: MS G723, 0x50: MPEG, - * 0x52: RT24, 0x53: PAC, 0x55: Mpeg layer 3, 0x59: Lucent G723, 0x60: Cirrus, - * 0x61: ESS Tech pcm, 0x62: voxware (obsolete), 0x63: canopus atrac, - * 0x64: G726, 0x65: G722, 0x66: DSAT, 0x67: DSAT display, - * 0x69: voxware (obsolete), 0x70: voxware ac8 (obsolete), 0x71: voxware ac10 (obsolete), - * 0x72: voxware ac16 (obsolete), 0x73: voxware ac20 (obsolete), 0x74: voxware rt24, - * 0x75: voxware rt29, 0x76: voxware rt29hw (obsolete), 0x77: voxware vr12 (obsolete), - * 0x78: voxware vr18 (obsolete), 0x79: voxware tq40 (obsolete), - * 0x80: softsound, 0x81: voxware tq60 (obsolete), 0x82: MS RT24, 0x83: G729A, - * 0x84: MVI_MVI2, 0x85: DF G726, 0x86: DF GSM610, 0x88: isaudio, 0x89: onlive, - * 0x91: sbc24, 0x92: dolby ac3 spdif, 0x97: zyxel adpcm, 0x98: philips lpcbb, - * 0x99: packed, 0x100: rhetorex adpcm, - * 0x101: Irat, 0x102: IBM_alaw?, 0x103: IBM_ADPCM?, - * 0x111: vivo G723, 0x112: vivo siren, 0x123: digital g273 - * 0x200: Creative_ADPCM, 0x202: Creative fastspeech 8, 0x203: Creative fastspeech 10, - * 0x220: quarterdeck, 0x300: FM_TOWNS_SND, 0x400: BTV digital, 0x680: VME vmpcm, - * 0x1000: OLIGSM, 0x1001: OLIADPCM, 0x1002: OLICELP, 0x1003: OLISBC, 0x1004: OLIOPR - * 0x1100: LH codec, 0x1400: Norris, 0x1401: isaudio, 0x1500: Soundspace musicompression, 0x2000: DVM - * (see http://www.microsoft.com/asf/resources/draft-ietf-fleischman-codec-subtree-00.txt) - * and new: 0xFFFE: wave_format_extensible: bits/sample, mapping, 16 byte guid, 1st 2 bytes are code as above - * - * RIFF and LIST chunks have nested chunks. Registered chunk names include: - * LIST with subchunks, one of which can be: - * INFO itself containing: - * IARL: archival location, IART: artist, ICMS: commissioned, ICMT: comment, ICOP: copyright, ICRD: creation date, - * ICRP: uh...cropped, IDIM: dimensions, IDPI: dpi, IENG: engineer, IGNR: genre, IKEY: keywords, ILGT: lightness, - * IMED: medium, INAM: name, IPLT: palette, IPRD: product, ISBJ: subject, ISFT: software, ISHP: sharpness, - * ISRC: source, ISRF: source form, ITCH: technician, ISMP: SMPTE time code, IDIT: digitization time - * - * data chunk has the samples - * other (currently ignored) chunks are wavl = waveform data, fact, cues of some sort, slnt = silence, - * plst = playlist, adtl = associated data list, labl = cue label, note = cue comments, - * ltxt = text associated with data segment (cue), file, DISP = displayable object, - * JUNK = outdated info, PAD = padding, etc - * fact chunk generally has number of samples (used in compressed files) - */ - -static int wave_to_sndlib_format(int osf, int bps, bool little) -{ - switch (osf) - { - case 1: - switch (bps) - { - case 8: return(MUS_UBYTE); break; - case 16: if (little) return(MUS_LSHORT); else return(MUS_BSHORT); break; - case 32: if (little) return(MUS_LINT); else return(MUS_BINT); break; - case 24: if (little) return(MUS_L24INT); else return(MUS_B24INT); break; - default: return(MUS_UBYTE); break; - } - break; - case 3: - if (little) - { - if (bps == 64) - return(MUS_LDOUBLE); - else return(MUS_LFLOAT); - } - else - { - if (bps == 64) - return(MUS_BDOUBLE); - else return(MUS_BFLOAT); - } - break; - case 6: if (bps == 8) return(MUS_ALAW); break; - case 7: if (bps == 8) return(MUS_MULAW); break; - /* IBM mulaw follows G711 specs like other versions (this info direct from IBM) */ - case 0x101: return(MUS_MULAW); break; - case 0x102: return(MUS_ALAW); break; - } - return(MUS_UNKNOWN); -} - -static int read_riff_header(const char *filename, int chan) -{ - /* we know we have checked for RIFF xxxx WAVE when we arrive here */ - int chunksize, chunkloc, i; - bool little, got_fmt = false; - off_t offset; - little = true; - if (match_four_chars((unsigned char *)hdrbuf, I_RIFX)) little = false; /* big-endian data in this case, but I've never seen one */ - little_endian = little; - type_specifier = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 8)); - chunkloc = 12; - offset = 0; - data_format = MUS_UNKNOWN; - srate = 0; - chans = 0; - fact_samples = 0; - bits_per_sample = 0; - for (i = 0; i < AUX_COMMENTS; i++) aux_comment_start[i] = 0; - true_file_length = SEEK_FILE_LENGTH(chan); - update_form_size = big_or_little_endian_int((unsigned char *)(hdrbuf + 4), little); - while (true) - { - offset += chunkloc; - if (offset >= true_file_length) break; - if (seek_and_read(chan, (unsigned char *)hdrbuf, offset, 64) <= 0) break; - chunksize = big_or_little_endian_int((unsigned char *)(hdrbuf + 4), little); - if ((chunksize == 0) && /* can be empty data chunk */ - (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) - break; - if (match_four_chars((unsigned char *)hdrbuf, I_fmt_)) - { - /* - * 8: short format code --1 = PCM for example - * 10: short chans --1 - * 12: long rate --48000 (0xbb80) - * 16: long ave rate --65655 (0x10077) - * 20: short align --2 - * 22: short data size (bits) --16 - * 24: bytes of extra - * ... some extra data dependent on format - * - * R I F F # # # # W A V E f m t sp - * 5249 4646 f851 0500 5741 5645 666d 7420 - * e40f 0000 0100 0100 80bb 0000 0077 0100 - * 0200 1000 0000 0000 0000 0000 0000 0000 - * - * #x000551f8 = 348664 = size in bytes - 8 - * #x00000fe4 = 4068 [fmt_ chunk size?] - */ - got_fmt = true; - original_data_format = big_or_little_endian_short((unsigned char *)(hdrbuf + 8), little); - chans = big_or_little_endian_short((unsigned char *)(hdrbuf + 10), little); - srate = big_or_little_endian_int((unsigned char *)(hdrbuf + 12), little); - update_frames_location = 12 + offset; - block_align = big_or_little_endian_short((unsigned char *)(hdrbuf + 20), little); - bits_per_sample = big_or_little_endian_short((unsigned char *)(hdrbuf + 22), little); - if (original_data_format == -2) /* 0xFFFE = "extensible" : short size=22, short bits, long chanmap, short format */ - original_data_format = big_or_little_endian_short((unsigned char *)(hdrbuf + 24 + 8), little); - data_format = wave_to_sndlib_format(original_data_format, bits_per_sample, little); - } - else - { - if ((match_four_chars((unsigned char *)hdrbuf, I_data)) && (data_location == 0)) - { - update_ssnd_location = offset + 4; - data_location = offset + 8; - data_size = big_or_little_endian_uint((unsigned char *)(hdrbuf + 4), little); /* was int 27-Jul-01 */ - if (chunksize == 0) break; /* see aiff comment */ - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_fact)) - { - fact_samples = big_or_little_endian_int((unsigned char *)(hdrbuf + 8), little); - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_inst)) - { - base_note = hdrbuf[8]; - base_detune = hdrbuf[9]; - /* rest is gain low-note high-note low-velocity high-velocity */ - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_clm_)) - { - comment_start = offset + 8; - comment_end = comment_start + chunksize - 1; /* end of comment not start of next chunk */ - } - else - { - if ((match_four_chars((unsigned char *)hdrbuf, I_LIST)) && - (match_four_chars((unsigned char *)(hdrbuf + 8), I_INFO))) - { - aux_comment_start[0] = offset + 8; - aux_comment_end[0] = offset + 8 + chunksize - 1; - } - } - } - } - } - } - chunkloc = (8 + chunksize); - if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ - } - if (!got_fmt) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no fmt chunk?", filename)); - if (data_location == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no data chunk?", filename)); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - -static int write_riff_header(int chan, int wsrate, int wchans, int siz, int format, const char *comment, int len) -{ - int i, j, lenhdr, extra; - off_t offset, curend; - lenhdr = 0; - extra = 0; - if (len != 0) - { - lenhdr = 12; - if ((len % 4) != 0) - extra = (4 - (len % 4)); - } - write_four_chars((unsigned char *)hdrbuf, I_RIFF); - mus_lint_to_char((unsigned char *)(hdrbuf + 4), len + 36 + siz + lenhdr + extra); - write_four_chars((unsigned char *)(hdrbuf + 8), I_WAVE); - write_four_chars((unsigned char *)(hdrbuf + 12), I_fmt_); - mus_lint_to_char((unsigned char *)(hdrbuf + 16), 24 - 8); - switch (format) - { - case MUS_MULAW: - mus_lshort_to_char((unsigned char *)(hdrbuf + 20), 7); - mus_lshort_to_char((unsigned char *)(hdrbuf + 34), 8); - break; - case MUS_ALAW: - mus_lshort_to_char((unsigned char *)(hdrbuf + 20), 6); - mus_lshort_to_char((unsigned char *)(hdrbuf + 34), 8); - break; - case MUS_UBYTE: - mus_lshort_to_char((unsigned char *)(hdrbuf + 20), 1); - mus_lshort_to_char((unsigned char *)(hdrbuf + 34), 8); - break; - case MUS_LSHORT: - mus_lshort_to_char((unsigned char *)(hdrbuf + 20), 1); - mus_lshort_to_char((unsigned char *)(hdrbuf + 34), 16); - break; - case MUS_L24INT: - mus_lshort_to_char((unsigned char *)(hdrbuf + 20), 1); - mus_lshort_to_char((unsigned char *)(hdrbuf + 34), 24); - break; - case MUS_LINT: - mus_lshort_to_char((unsigned char *)(hdrbuf + 20), 1); - mus_lshort_to_char((unsigned char *)(hdrbuf + 34), 32); - break; - case MUS_LFLOAT: - mus_lshort_to_char((unsigned char *)(hdrbuf + 20), 3); - mus_lshort_to_char((unsigned char *)(hdrbuf + 34), 32); - break; - case MUS_LDOUBLE: - mus_lshort_to_char((unsigned char *)(hdrbuf + 20), 3); - mus_lshort_to_char((unsigned char *)(hdrbuf + 34), 64); - break; - default: - return(mus_error(MUS_UNSUPPORTED_DATA_FORMAT, "riff header: can't write data format: %d (%s)", - format, - any_data_format_name(format))); - break; - } - mus_lshort_to_char((unsigned char *)(hdrbuf + 22), (short)wchans); - mus_lint_to_char((unsigned char *)(hdrbuf + 24), wsrate); - mus_lint_to_char((unsigned char *)(hdrbuf + 28), wsrate * wchans * mus_bytes_per_sample(format)); /* added chans 10-Mar-99 */ - mus_lshort_to_char((unsigned char *)(hdrbuf + 32), (short)(wchans * mus_bytes_per_sample(format))); - - offset = 36; - i = 36; - curend = 0; - if (len != 0) - { - offset += len + 12; - write_four_chars((unsigned char *)(hdrbuf + 36), I_clm_); - mus_lint_to_char((unsigned char *)(hdrbuf + 40), len + extra); - i = 44; - for (j = 0; j < len; j++) - { - if (i == HDRBUFSIZ) - { - curend += HDRBUFSIZ; - CHK_WRITE(chan, hdrbuf, HDRBUFSIZ); - i = 0; - } - hdrbuf[i] = comment[j]; - i++; - } - if (extra != 0) - { - if ((i + extra) > HDRBUFSIZ) - { - curend += i; - CHK_WRITE(chan, hdrbuf, i); - i = 0; - } - for (j = 0; j < extra; j++) - { - hdrbuf[i] = 0; - i++; - } - } - } - curend += i; - CHK_WRITE(chan, hdrbuf, i); - write_four_chars((unsigned char *)hdrbuf, I_data); - mus_lint_to_char((unsigned char *)(hdrbuf + 4), siz); - data_location = 8 + curend; - CHK_WRITE(chan, hdrbuf, 8); - return(MUS_NO_ERROR); -} - -char *mus_header_riff_aux_comment(const char *name, off_t *starts, off_t *ends) -{ - char *sc = NULL, *auxcom; - if ((starts) && (starts[0] != 0)) - { - int len, j, fd, k, m; - off_t i, end; - /* found a LIST+INFO chunk (and no other comment) */ - fd = mus_file_open_read(name); - if (fd == -1) return(NULL); - i = starts[0]; - end = ends[0]; - sc = (char *)CALLOC(end - i + 2, sizeof(char)); - j = 0; - k = 4; - lseek(fd, i, SEEK_SET); - auxcom = (char *)CALLOC(end - i + 2, sizeof(char)); - CHK_READ(fd, auxcom, end - i + 1); - CLOSE(fd, name); - i += 4; - while (i < end) - { - for (m = 0; m < 4; m++) sc[j++] = auxcom[k++]; - len = mus_char_to_lint((unsigned char *)(auxcom + k)); - if ((len <= 0) || (len > end)) break; - sc[j++] = ':'; - sc[j++] = ' '; - k += 4; - for (m = 0; m < len; m++) - if (auxcom[k] != 0) - sc[j++] = auxcom[k++]; - else k++; - sc[j++] ='\n'; - if (len & 1) - { - len++; - k++; - } - i += (len + 8); - } - FREE(auxcom); - } - return(sc); -} - - -/* soundforge -- just a quick hack until I get better documentation */ -static long little_long_long(unsigned char *buf) -{ - return(mus_char_to_lint((unsigned char *)(buf))); -} - -static int read_soundforge_header(const char *filename, int chan) -{ - /* like RIFF but lowercase and 64-bit vals */ - int chunksize, chunkloc, i, off; - off_t offset; - chunkloc = 12 * 2 + 16; - offset = 0; - data_format = MUS_UNKNOWN; - srate = 0; - chans = 0; - fact_samples = 0; - bits_per_sample = 0; - for (i = 0; i < AUX_COMMENTS; i++) aux_comment_start[i] = 0; - true_file_length = SEEK_FILE_LENGTH(chan); - update_form_size = little_long_long((unsigned char *)(hdrbuf + 4 * 2)); - while (true) - { - offset += chunkloc; - if (offset >= true_file_length) break; - if (seek_and_read(chan, (unsigned char *)hdrbuf, offset, 64) <= 0) break; - chunksize = little_long_long((unsigned char *)(hdrbuf + 16)); - if ((chunksize == 0) && /* can be empty data chunk? */ - (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) - break; - if (match_four_chars((unsigned char *)hdrbuf, I_fmt_)) - { - off = 16; - original_data_format = mus_char_to_lshort((unsigned char *)(hdrbuf + 8 + off)); - chans = mus_char_to_lshort((unsigned char *)(hdrbuf + 10 + off)); - srate = mus_char_to_lint((unsigned char *)(hdrbuf + 12 + off)); - block_align = mus_char_to_lshort((unsigned char *)(hdrbuf + 20 + off)); - bits_per_sample = mus_char_to_lshort((unsigned char *)(hdrbuf + 22 + off)); - data_format = wave_to_sndlib_format(original_data_format, bits_per_sample, true); - } - else - { - if ((match_four_chars((unsigned char *)hdrbuf, I_data)) && (data_location == 0)) - { - data_location = offset + 16 + 8; - data_size = mus_char_to_ulint((unsigned char *)(hdrbuf + 16)); - if (chunksize == 0) break; /* see aiff comment */ - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_fact)) - { - fact_samples = mus_char_to_lint((unsigned char *)(hdrbuf + 8)); - } - } - } - chunkloc = (8 + chunksize); - chunkloc -= 8; - if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ - } - if (data_location == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no data chunk?", filename)); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ AVI ------------------------------------ - * actually a video format, but it sometimes contains embedded 'wave' data - * - * RIFF xxx AVI - * <various LISTs> - * LIST xxxx hdr1 LIST strl(?) strh | strf | strn etc - * strf is the WAVE header starting with the sound format - * LIST xxxx movi ##db|##wb -- wb subblocks have the audio data (these need to be collected as a single stream) - * there are many complications that we make no effort to handle here - * - * described in http://www.rahul.net/jfm/avi.html - */ - -static int read_avi_header(const char *filename, int chan) -{ - /* we know we have checked for RIFF xxxx AVI when we arrive here */ - int chunksize, chunkloc, cksize, bits; - bool happy; - off_t ckoff, cktotal, offset; - type_specifier = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 8)); - chunkloc = 12; - offset = 0; - data_format = MUS_UNKNOWN; - srate = 0; - chans = 1; - happy = true; - true_file_length = SEEK_FILE_LENGTH(chan); - while (happy) - { - offset += chunkloc; - if (seek_and_read(chan, (unsigned char *)hdrbuf, offset, 32) <= 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s avi header: chunks confused at " OFF_TD, filename, offset)); - chunksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); - if ((chunksize == 0) && /* can be empty data chunk? */ - (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) - break; - if (match_four_chars((unsigned char *)hdrbuf, I_LIST)) - { - ckoff = offset + 12; - cktotal = 12; - if (match_four_chars((unsigned char *)(hdrbuf + 8), I_movi)) - { - while (cktotal < chunksize) - { - lseek(chan, ckoff, SEEK_SET); - CHK_READ(chan, hdrbuf, 8); - cksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); - if ((hdrbuf[2] == 'w') && (hdrbuf[3] == 'b')) - { - data_location = ckoff; - if (srate != 0) happy = false; - break; - } - ckoff += (8 + cksize); - cktotal += (8 + cksize); - } - } - else - { - while (cktotal < chunksize) - { - lseek(chan, ckoff, SEEK_SET); - CHK_READ(chan, hdrbuf, 8); - cksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); - ckoff += (8 + cksize); - cktotal += (8 + cksize); - if (match_four_chars((unsigned char *)hdrbuf, I_LIST)) - { - off_t cksizer, ckoffr, cktotalr, rdsize; - ckoffr = ckoff + 12; - cktotalr = 12; - while (cktotalr < cksize) - { - lseek(chan, ckoffr, SEEK_SET); - CHK_READ(chan, hdrbuf, 8); - cksizer = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); - ckoffr += (8 + cksizer); - cktotalr += (8 + cksizer); - if (match_four_chars((unsigned char *)hdrbuf, I_strf)) - { - if (cksizer < HDRBUFSIZ) - rdsize = cksizer; - else rdsize = HDRBUFSIZ; - CHK_READ(chan, hdrbuf, rdsize); - original_data_format = mus_char_to_lshort((unsigned char *)hdrbuf); - chans = mus_char_to_lshort((unsigned char *)(hdrbuf + 2)); - srate = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); - /* block_align = mus_char_to_lshort((unsigned char *)(hdrbuf + 12)); */ - bits = mus_char_to_lshort((unsigned char *)(hdrbuf + 14)); - /* only 16 bit linear little endian for now */ - if ((bits == 16) && (original_data_format == 1)) - data_format = MUS_LSHORT; - if (data_location != 0) happy = false; - break; - } - } - } - } - } - } - chunkloc = (8 + chunksize); - if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ - } - if (data_location == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no movi chunk?", filename)); - if (data_location > true_file_length) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - data_size = mus_bytes_to_samples(data_format, true_file_length - data_location); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ SoundFont 2.0 ------------------------------------ - * - * Emu's SoundFont(tm) format uses RIFF -- at ftp.creaf.com:/pub/emu/sf2_00a.ps) - * - * RIFF xxxx sfbk followed by - * LIST xxxx INFO chunk (nothing of interest -- icmt subchunk might have comments) - * LIST xxxx sdta chunk = data - * smpl chunk (16 bit linear little-endian) - * LIST xxxx pdta list chunk - * shdr subchunk has srate at 40 (int), samples at 28 - * - * http://smurf.sourceforge.net/sfont_intro.php - * http://www.hammersound.net/ - */ - -static int soundfont_entries = 0; -static int *soundfont_starts = NULL, *soundfont_ends = NULL, *soundfont_loop_starts = NULL, *soundfont_loop_ends = NULL; -static int soundfont_size = 0; -static char **soundfont_names = NULL; - -static void soundfont_entry(const char *name, int start, int end, int loop_start, int loop_end) -{ - if (soundfont_entries == soundfont_size) - { - int i; - if (soundfont_size == 0) - { - soundfont_size = 8; - soundfont_starts = (int *)CALLOC(soundfont_size, sizeof(int)); - soundfont_ends = (int *)CALLOC(soundfont_size, sizeof(int)); - soundfont_loop_starts = (int *)CALLOC(soundfont_size, sizeof(int)); - soundfont_loop_ends = (int *)CALLOC(soundfont_size, sizeof(int)); - soundfont_names = (char **)CALLOC(soundfont_size, sizeof(char *)); - } - else - { - soundfont_size += 8; - soundfont_starts = (int *)REALLOC(soundfont_starts, soundfont_size * sizeof(int)); - soundfont_ends = (int *)REALLOC(soundfont_ends, soundfont_size * sizeof(int)); - soundfont_loop_starts = (int *)REALLOC(soundfont_loop_starts, soundfont_size * sizeof(int)); - soundfont_loop_ends = (int *)REALLOC(soundfont_loop_ends, soundfont_size * sizeof(int)); - soundfont_names = (char **)REALLOC(soundfont_names, soundfont_size * sizeof(char *)); - } - for (i = soundfont_entries; i < soundfont_size; i++) soundfont_names[i] = NULL; - } - if (soundfont_names[soundfont_entries] == NULL) soundfont_names[soundfont_entries] = (char *)CALLOC(20, sizeof(char)); - strcpy(soundfont_names[soundfont_entries], name); - soundfont_starts[soundfont_entries] = start; - soundfont_ends[soundfont_entries] = end; - soundfont_loop_starts[soundfont_entries] = loop_start; - soundfont_loop_ends[soundfont_entries] = loop_end; - soundfont_entries++; -} - -int mus_header_sf2_entries(void) {return(soundfont_entries);} -char *mus_header_sf2_name(int n) {return(soundfont_names[n]);} -int mus_header_sf2_start(int n) {return(soundfont_starts[n]);} -int mus_header_sf2_end(int n) {return(soundfont_ends[n]);} -int mus_header_sf2_loop_start(int n) {return(soundfont_loop_starts[n]);} -int mus_header_sf2_loop_end(int n) {return(soundfont_loop_ends[n]);} - -static int read_soundfont_header(const char *filename, int chan) -{ - /* we know we have checked for RIFF xxxx sfbk when we arrive here */ - int chunksize, chunkloc, type, cksize, i, this_end, last_end; - off_t ckoff, offset; - bool happy; - type_specifier = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 8)); - chunkloc = 12; - offset = 0; - soundfont_entries = 0; - data_format = MUS_LSHORT; - srate = 0; - chans = 1; - happy = true; - last_end = 0; - true_file_length = SEEK_FILE_LENGTH(chan); - while (happy) - { - offset += chunkloc; - if (seek_and_read(chan, (unsigned char *)hdrbuf, offset, 32) <= 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s soundfont header: chunks confused at " OFF_TD, filename, offset)); - chunksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); - if ((chunksize == 0) && /* can be empty data chunk? */ - (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) - break; - if (match_four_chars((unsigned char *)hdrbuf, I_LIST)) - { - /* everything is squirreled away in LIST chunks in this format */ - if (match_four_chars((unsigned char *)(hdrbuf + 8), I_pdta)) - { - /* go searching for I_shdr -- headers this complicated should be illegal. */ - ckoff = offset + 12; - lseek(chan, ckoff, SEEK_SET); - while (srate == 0) - { - size_t bytes; - bytes = read(chan, hdrbuf, 8); - if (bytes == 0) - { - happy = false; - break; - } - i = 0; - cksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); - ckoff += (8 + cksize); - /* here we need to jump over subchunks! -- 4-Aug-97 */ - if (match_four_chars((unsigned char *)hdrbuf, I_shdr)) - { - /* each sound: - * 0: name - * 20: start (in samples from start of bank) - * 24: end - * 28: loop start (also relative to start of bank) - * 32: loop end - * 36: sample rate - * 40: pitch (60 = middle C) - * 41: detune (cents) - * 42: link (to other channel if any?) - * 44: type (1 = mono, 2 = mono right, 4 = mono left, others (0x8000) apparently for ROM presets?) - */ - while (i < cksize) - { - CHK_READ(chan, hdrbuf, 46); - i += 46; - type = mus_char_to_lshort((unsigned char *)(hdrbuf + 44)); - if ((type == 1) && - (mus_char_to_lint((unsigned char *)(hdrbuf + 24)) > 0)) - { - if (srate == 0) - srate = mus_char_to_lint((unsigned char *)(hdrbuf + 36)); - soundfont_entry((char *)(hdrbuf), - mus_char_to_lint((unsigned char *)(hdrbuf + 20)), - this_end = mus_char_to_lint((unsigned char *)(hdrbuf + 24)), - mus_char_to_lint((unsigned char *)(hdrbuf + 28)), - mus_char_to_lint((unsigned char *)(hdrbuf + 32))); - if (this_end > last_end) last_end = this_end; - } - } - happy = (data_location == 0); - } - else - { - if (ckoff >= offset + 8 + chunksize) - break; - lseek(chan, ckoff, SEEK_SET); - } - } - } - else - { - if (match_four_chars((unsigned char *)(hdrbuf + 8), I_sdta)) - { - /* assume smpl follows + subchunk size */ - /* Convert 1.4 appears to create a separate smpl chunk */ - data_location = offset + 20; /* LIST xxxx sdta smpl xxxx ... */ - happy = (srate == 0); - } - } - } - chunkloc = (8 + chunksize); - if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ - } - if (srate == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: srate == 0", filename)); - if (data_location == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no sdta chunk?", filename)); - if (last_end > 0) - data_size = last_end; /* samples already */ - else data_size = (true_file_length - data_location) / 2; - return(MUS_NO_ERROR); -} - - - - -/* ------------------------------------ NIST ------------------------------------ - * - * code available in ogitools-v1.0.tar.gz at svr-ftp.eng.cam.ac.uk:comp.speech/sources - * - * 0: "NIST_1A" - * 8: data_location as ASCII representation of integer (apparently always " 1024") - * 16: start of complicated header -- see below for details - * - * The most recent version of the SPHERE package is available - * via anonymous ftp from jaguar.ncsl.nist.gov [129.6.48.157] in the pub directory - * in compressed tar form as "sphere-v.tar.Z" (where "v" is the version - * code 2.6a last I looked). shortpack is also at this site. - * - * here's an example: - * - * NIST_1A - * 1024 - * database_id -s5 TIMIT - * database_version -s3 1.0 - * utterance_id -s8 aks0_sa1 - * channel_count -i 1 - * sample_count -i 63488 - * sample_rate -i 16000 - * sample_min -i -6967 - * sample_max -i 7710 - * sample_n_bytes -i 2 - * sample_byte_format -s2 01 - * sample_sig_bits -i 16 - * end_head - * - * the sample_byte_format can be "10"=big-endian or "01"=little-endian, or "shortpack-v0"=compressed via shortpack - * other formats are wavpack and shorten. - * - * another field is 'sample_coding' which can be pcm (i.e. linear), 'pcm, embedded-shorten-v1.09', mu-law, alaw, ulaw, pculaw etc -- - * so unpredictable as to be totally useless. This means we sometimes try to decode shorten-encoded files because - * we ignore this field. And worse, there's a 'channels_interleaved' field that (apparently) can be false. Tough. - */ - -#define MAX_FIELD_LENGTH 80 - -static int decode_nist_value(char *str, int base, int end) -{ - /* can be -i -r or -snnn where nnn = ascii rep of integer = len of string (!) */ - /* we'll deal only with integer fields (and well-behaved string fields) */ - int i, j; - char value[MAX_FIELD_LENGTH]; - memset((void *)value, 0, MAX_FIELD_LENGTH); - i = base; - while ((i < end) && (i < MAX_FIELD_LENGTH) && (str[i] != '-')) i++; /* look for -i or whatever */ - while ((i < end) && (i < MAX_FIELD_LENGTH) && (str[i] != ' ')) i++; /* look for space after it */ - i++; - if (i >= MAX_FIELD_LENGTH) return(0); - for (j = 0; i < end; j++, i++) - value[j] = str[i]; - value[j] = 0; - if (value[0] =='s') return(MUS_NIST_SHORTPACK); - sscanf(value, "%d", &i); - return(i); -} - -static int read_nist_header(const char *filename, int chan) -{ - char str[MAX_FIELD_LENGTH], name[MAX_FIELD_LENGTH]; - bool happy = true; - off_t curbase; - int k, hend, j, n, nm, samples, bytes, byte_format, idata_location = 0; - type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); /* the actual id is "NIST_1A" */ - memset((void *)str, 0, MAX_FIELD_LENGTH); - memset((void *)name, 0, MAX_FIELD_LENGTH); - for (k = 8; k < 16; k++) - str[k - 8] = hdrbuf[k]; - sscanf(str, "%d", &idata_location); /* always "1024" */ - if (idata_location != 1024) - return(mus_error(MUS_HEADER_READ_FAILED, "%s NIST data location: %d?", filename, idata_location)); - data_location = 1024; - n = 16; - hend = INITIAL_READ_SIZE; - k = 0; - curbase = 0; - samples = 0; - bytes = 0; - srate = 0; - chans = 0; - comment_start = 16; - comment_end = 16; - byte_format = 10; - for (j = 0; j < MAX_FIELD_LENGTH; j++) - str[j] =' '; - while (happy) - { - /* much as in xIFF files, march through the file looking for the data we're after */ - /* in this case we munch a character at a time... */ - str[k] = hdrbuf[n]; - if ((((str[k] == '\0') || (str[k] == '\n')) || ((curbase + n + 1) >= data_location)) || (k == 79)) - { - /* got a complete record (assuming no embedded newlines, of course) */ - /* now look for a record we care about and decode it */ - nm = 0; - while ((nm < MAX_FIELD_LENGTH) && (str[nm] != ' ') && (str[nm] != '\0') && (str[nm] != '\n')) - { - name[nm] = str[nm]; - nm++; - } - if (nm >= MAX_FIELD_LENGTH) - { - header_type = MUS_RAW; - data_format = MUS_UNKNOWN; - return(mus_error(MUS_UNSUPPORTED_HEADER_TYPE, "%s nist header: unreadable field (length = %d)?", filename, nm)); - } - name[nm] = 0; - if (strcmp(name, "sample_rate") == 0) srate = decode_nist_value(str, nm, k); else - if (strcmp(name, "channel_count") == 0) chans = decode_nist_value(str, nm, k); else - if (strcmp(name, "end_head") == 0) {happy = false; comment_end = curbase + n - 9;} else - if (strcmp(name, "sample_count") == 0) samples = decode_nist_value(str, nm, k); else - if ((bytes == 0) && (strcmp(name, "sample_n_bytes") == 0)) bytes = decode_nist_value(str, nm, k); else - if ((bytes == 0) && (strcmp(name, "sample_sig_bits") == 0)) {bytes = decode_nist_value(str, nm, k); bytes = (bytes >> 3);} else - if (strcmp(name, "sample_byte_format") == 0) byte_format = decode_nist_value(str, nm, k); - for (j = 0; j <= k; j++) str[j] =' '; - k = 0; - if ((curbase + n + 1) > 1024) happy = false; - } - else - k++; - n++; - if (n >= hend) - { - int read_bytes; - curbase += hend; - n = 0; - read_bytes = read(chan, hdrbuf, HDRBUFSIZ); - if (read_bytes < HDRBUFSIZ) - return(mus_error(MUS_HEADER_READ_FAILED, "%s NIST header truncated?", filename)); - hend = HDRBUFSIZ; - } - } - data_size = samples * bytes; - if (byte_format == MUS_NIST_SHORTPACK) - { - data_format = MUS_UNKNOWN; - original_data_format = MUS_NIST_SHORTPACK; - } - else - { - switch (bytes) - { - case 1: data_format = MUS_MULAW; break; - case 2: - if (byte_format == 10) - data_format = MUS_BSHORT; - else data_format = MUS_LSHORT; - break; - case 3: - if (byte_format == 10) - data_format = MUS_B24INT; - else data_format = MUS_L24INT; - break; - case 4: - if (byte_format == 10) - data_format = MUS_BINT; - else data_format = MUS_LINT; - break; - default: data_format = MUS_BYTE; break; - } - } - true_file_length = SEEK_FILE_LENGTH(chan); - if ((data_size > true_file_length) && (original_data_format != MUS_NIST_SHORTPACK)) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - -static int write_nist_header(int chan, int wsrate, int wchans, int siz, int format) -{ - char *header; - int datum; - datum = mus_bytes_per_sample(format); - header = (char *)CALLOC(1024, sizeof(char)); - sprintf(header, "NIST_1A\n 1024\nchannel_count -i %d\nsample_rate -i %d\nsample_n_bytes -i %d\nsample_byte_format -s2 %s\nsample_sig_bits -i %d\nsample_count -i %d\nend_head\n", - wchans, wsrate, datum, - ((format == MUS_BSHORT) || (format == MUS_B24INT) || (format == MUS_BINT)) ? "10" : "01", - datum * 8, siz / datum); - CHK_WRITE(chan, (unsigned char *)header, 1024); - data_location = 1024; - FREE(header); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ BICSF ------------------------------------ - * (actually, this is EBICSF and the old BICSF is called IRCAM below) - * - * 0-28: NeXT-compatible header, read by read_next_header above. - * 28: bicsf magic number (107364 or trouble) - * 32: srate as a 32-bit float - * 36: chans - * 40: data format indicator (2 = 16-bit linear, 4 = 32-bit float) - * 44: begin chunks, if any - * - * followed by AIFF-style chunked header info with chunks like: - * - * COMM size comment - * MAXA size {max amps (up to 4)} (frame offsets) time-tag unix msec counter - * CUE, PRNT, ENV etc - * - * except in Paul Lansky's "hybrid" headers, according to MixViews. - */ - -static int read_bicsf_header(const char *filename, int chan) -{ - int chunksize, chunkname, offset, chunkloc; - bool happy; - type_specifier = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 28)); - header_type = MUS_BICSF; - data_location = 1024; - if (data_size == 0) data_size = (true_file_length - data_location); - lseek(chan, 40, SEEK_SET); - CHK_READ(chan, hdrbuf, HDRBUFSIZ); - original_data_format = mus_char_to_bint((unsigned char *)hdrbuf); - switch (original_data_format) - { - case 2: data_format = MUS_BSHORT; break; - case 4: data_format = MUS_BFLOAT; break; - case 8: data_format = MUS_BDOUBLE; break; - default: break; - } - - /* now check for a COMM chunk, setting the comment pointers */ - chunkloc = 4; /* next header + magic number, srate, chans, packing, then chunks, I think */ - offset = 40; - happy = true; - while (happy) - { - if (((offset + chunkloc) >= data_location) || - ((offset + chunkloc) < 40)) - happy = false; - else - { - offset += chunkloc; - if (seek_and_read(chan, (unsigned char *)hdrbuf, offset, 32) <= 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s bicsf header: chunks confused at %d", filename, offset)); - chunkname = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); - chunksize = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); - if (match_four_chars((unsigned char *)hdrbuf, I_COMM)) - { - comment_start = 8 + offset; - comment_end = comment_start + chunksize -1; - happy = false; - } - else - { - if ((chunkname == 0) || (chunksize <= 0)) - happy = false; - } - chunkloc = (8 + chunksize); - } - } - return(MUS_NO_ERROR); - /* from here we fall back into read_next_header */ -} - - - -/* ------------------------------------ IRCAM ------------------------------------ - * read/write CLM (old-style BICSF) -- added write option for Sun port 12-Dec-94 - * - * 0: 0x1a364 or variations thereof -- byte order gives big/little_endian decision, - * ^ digit gives machine info, according to AFsp sources -- see IRCAM ints above - * 4: srate as a 32-bit float - * 8: chans - * 12: data format indicator (2 = 16-bit linear, 4 = 32-bit float) - * according to new Sox (version 11), these packing modes are now bytes/sample in low short, code in high - * so 1 = char, 0x10001 = alaw, 0x20001 = mulaw, 2 = short, 3 = 24bit?, 0x40004 = long, 4 = float (AFsp sez 4 can also be double) - * 16: comment start -- how to tell if it's a real comment? - * apparently these are separated as short code, short blocksize, then data - * codes: 0 = end, 1 = maxamp, 2 = comment, 3 = pvdata, 4 = audioencode and codemax?? - * 1024: data start - * - * apparently the byte order depends on the machine. - * and yet... convert 1.4 makes a .sf file with little endian header, the VAX id, and big endian data? - * Csound also uses the VAX magic number with little-endian unscaled floats! Argh. - * even worse, Paul Lansky plops some version of this at the end of a NeXT header! Complete chaos... - */ - -static int read_ircam_header(const char *filename, int chan) -{ - short bcode, bloc, bsize; - int offset; - bool little, happy; - type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); - if ((mus_char_to_lint((unsigned char *)hdrbuf) == I_IRCAM_VAX) || - (mus_char_to_lint((unsigned char *)hdrbuf) == I_IRCAM_MIPS)) - little = true; - else little = false; - little_endian = little; - data_location = 1024; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - 1024); - original_data_format = big_or_little_endian_int((unsigned char *)(hdrbuf + 12), little); - data_format = MUS_UNKNOWN; - if (original_data_format == 2) - { - if (little) - data_format = MUS_LSHORT; - else data_format = MUS_BSHORT; - } - else if (original_data_format == 4) - { - if (little) - { - if (mus_char_to_lint((unsigned char *)hdrbuf) == I_IRCAM_VAX) - data_format = MUS_LFLOAT_UNSCALED; /* Csound and MixViews */ - else data_format = MUS_LFLOAT; - } - else data_format = MUS_BFLOAT; - } - else if (original_data_format == 0x40004) - { - if (little) data_format = MUS_LINT; - else data_format = MUS_BINT; - } - else if (original_data_format == 0x10001) data_format = MUS_ALAW; - else if (original_data_format == 0x20001) data_format = MUS_MULAW; - else if (original_data_format == 1) data_format = MUS_BYTE; - else if (original_data_format == 3) - { - if (little) data_format = MUS_L24INT; - else data_format = MUS_B24INT; - } - else if (original_data_format == 8) - { - if (little) data_format = MUS_LDOUBLE; - else data_format = MUS_BDOUBLE; - } - srate = (int)big_or_little_endian_float((unsigned char *)(hdrbuf + 4), little); - chans = big_or_little_endian_int((unsigned char *)(hdrbuf + 8), little); - bloc = 16; - happy = true; - offset = 0; - while (happy) - { - offset += bloc; - if (seek_and_read(chan, (unsigned char *)hdrbuf, offset, 32) <= 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s ircam header: chunks confused at %d", filename, offset)); - bcode = big_or_little_endian_short((unsigned char *)hdrbuf, little); - bsize = big_or_little_endian_short((unsigned char *)(hdrbuf + 2), little); - if (bcode == 2) - { - happy = false; - comment_start = 4 + offset; - comment_end = comment_start + bsize - 1; /* was -5? */ - } - bloc = bsize; - if ((bsize <= 0) || (bcode <= 0) || ((offset + bloc) > 1023)) happy = false; - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - -static int sndlib_format_to_ircam(int format) -{ - switch (format) - { - case MUS_MULAW: return(0x20001); break; - case MUS_ALAW: return(0x10001); break; - case MUS_BSHORT: return(2); break; - case MUS_BINT: return(0x40004); break; - case MUS_BFLOAT: return(4); break; - default: - return(mus_error(MUS_UNSUPPORTED_DATA_FORMAT, "IRCAM header unsupported data format: %d (%s)", format, any_data_format_name(format))); - break; - } -} - -static void write_ircam_comment(int fd, const char *comment, int len) -{ - if (len > 0) - { - mus_bshort_to_char((unsigned char *)hdrbuf, 2); - mus_bshort_to_char((unsigned char *)(hdrbuf + 2), (short)len); - CHK_WRITE(fd, hdrbuf, 4); - CHK_WRITE(fd, (unsigned char *)comment, len); - } - else - { - mus_bint_to_char((unsigned char *)hdrbuf, 0); - CHK_WRITE(fd, hdrbuf, 4); - } - len = 1024 - (len + 20); - if (len > 0) - { - unsigned char *combuf; - combuf = (unsigned char *)CALLOC(len, sizeof(char)); - CHK_WRITE(fd, combuf, len); - FREE(combuf); - } -} - -static int write_ircam_header(int chan, int wsrate, int wchans, int format, const char *comment, int len) -{ - mus_bint_to_char((unsigned char *)hdrbuf, 0x2a364); /* SUN id */ - mus_bfloat_to_char((unsigned char *)(hdrbuf + 4), (float)wsrate); - mus_bint_to_char((unsigned char *)(hdrbuf + 8), wchans); - mus_bint_to_char((unsigned char *)(hdrbuf + 12), sndlib_format_to_ircam(format)); - CHK_WRITE(chan, hdrbuf, 16); - data_location = 1024; - write_ircam_comment(chan, comment, len); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ 8SVX ------------------------------------- - * (also known as IFF) - * - * very similar to AIFF: - * "BODY" => [4] samples [n] data - * "VHDR" => srate (short) - * "CHAN" => chans - * "ANNO" and "NAME" - * - * big_endian throughout - */ - -static int read_8svx_header(const char *filename, int chan, bool bytewise) -{ - int chunksize, offset, chunkloc; - bool happy; - type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); - chunkloc = 12; - offset = 0; - if (bytewise) data_format = MUS_BYTE; else data_format = MUS_BSHORT; - srate = 0; - chans = 1; - happy = true; - true_file_length = SEEK_FILE_LENGTH(chan); - update_form_size = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); - while (happy) - { - offset += chunkloc; - if (seek_and_read(chan, (unsigned char *)hdrbuf, offset, 32) <= 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s 8svx header: chunks confused at %d", filename, offset)); - chunksize = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); - if ((chunksize == 0) && /* can be empty data chunk? */ - (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) - break; - if (match_four_chars((unsigned char *)hdrbuf, I_CHAN)) - { - chans = mus_char_to_bint((unsigned char *)(hdrbuf + 8)); - chans = (chans & 0x01) + - ((chans & 0x02) >> 1) + - ((chans & 0x04) >> 2) + - ((chans & 0x08) >> 3); - /* what in heaven's name is this? Each bit corresponds to a channel? */ - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_VHDR)) - { - /* num_samples (int) at hdrbuf + 8 */ - srate = mus_char_to_ubshort((unsigned char *)(hdrbuf + 20)); - original_data_format = hdrbuf[23]; - if (original_data_format != 0) - data_format = MUS_UNKNOWN; - } - else - { - if ((match_four_chars((unsigned char *)hdrbuf, I_ANNO)) || - (match_four_chars((unsigned char *)hdrbuf, I_NAME))) - { - comment_start = offset + 8; - comment_end = comment_start + chunksize - 1; - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_BODY)) - { - data_size = chunksize; - data_location = offset + 12; - happy = false; - } - } - } - } - chunkloc = (8 + chunksize); - if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ - } - if (data_location == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no BODY chunk?", filename)); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ VOC -------------------------------------- - * - * 0: "Creative Voice File" followed by a couple ctrl-Z ('32) (swapped data) - * 20: header end (short) {8svx, 26 = data_offset, 0x10a = version, ((~version + 0x1234) & 0xffff) = 0x1129} - * [20]: first block: - * block code, 1 = data, 0 = end, 9 = data_16 (2 = continue, 3 = silence, 4 = marker, 5 = text, 6 = loop, 7 = loop-end, 8 = extended) - * block len as 24 bit int(?) - * if data, then rate code (byte), then data (assuming 8-bit unsigned, mono) - * if data_16, long srate, byte: data size (8 or 16), byte chans - * if text, ascii text (a comment) - * if extended (8) precedes 1 (data): 8 4 then time constant (short), byte: packing code (0), byte chans (0 = mono) - * - * apparently always little_endian - * updated extensively 29-Aug-95 from sox10 voc.c - */ - -static int read_voc_header(const char *filename, int chan) -{ - off_t curbase; - int type, len, voc_extended, bits, code; - bool happy; - data_format = MUS_UBYTE; - chans = 1; - happy = true; - voc_extended = 0; - true_file_length = SEEK_FILE_LENGTH(chan); - curbase = mus_char_to_lshort((unsigned char *)(hdrbuf + 20)); - if (true_file_length < curbase) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: block location " OFF_TD " > file length: " OFF_TD, filename, curbase, true_file_length)); - lseek(chan, curbase, SEEK_SET); - CHK_READ(chan, hdrbuf, HDRBUFSIZ); - while (happy) - { - type = (int)(hdrbuf[0]); - len = (((int)hdrbuf[3]) << 16) + (((int)hdrbuf[2]) << 8) + (((int)hdrbuf[1])); - if (type == 1) /* voc_data */ - { - data_size = len - 1; /* was -3 */ - data_location = curbase + 6; - if (voc_extended == 0) - { - srate = (int)(1000000.0 / (256 - ((int)(hdrbuf[4] & 0xff)))); - original_data_format = hdrbuf[5]; - if (hdrbuf[5] == 0) - data_format = MUS_UBYTE; - else data_format = MUS_UNKNOWN; - } - happy = false; - } - else - { - if (type == 9) /* voc_data_16 */ - { - data_size = len - 1; /* was -3 */ - data_location = curbase + 6; - srate = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); - bits = ((int)hdrbuf[8]); - if (bits == 8) - { - code = mus_char_to_lshort((unsigned char *)(hdrbuf + 10)); - if (code == 6) - data_format = MUS_ALAW; - else - if (code == 7) - data_format = MUS_MULAW; - else data_format = MUS_UBYTE; - } - else - if (bits == 16) - data_format = MUS_LSHORT; - else data_format = MUS_UNKNOWN; - chans = (int)hdrbuf[9]; - if (chans == 0) chans = 1; - happy = false; - } - else - { - if (((len + curbase) < true_file_length) && (type != 0)) - { - if (type == 5) /* voc_text */ - { - comment_start = curbase + 4; - comment_end = comment_start + len - 1; - } - else - { - if (type == 8) /* voc_extended */ - { - srate = (256000000 / (65536 - mus_char_to_lshort((unsigned char *)(hdrbuf + 4)))); - if ((int)(hdrbuf[7]) == 0) chans = 1; else chans = 2; - if ((int)(hdrbuf[6]) != 0) data_format = MUS_UNKNOWN; - } - /* I'd add loop support here if I had any example sound files to test with */ - } - if (seek_and_read(chan, (unsigned char *)hdrbuf, curbase + len + 4, HDRBUFSIZ) <= 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s voc header: ran off end of file", filename)); - curbase += len; - } - else happy = false; - } - } - } - if (data_location == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no data(type 1 or 9) chunk?", filename)); - if ((data_size > true_file_length) || (data_size < (off_t)(true_file_length / 10))) /* some VOC files seem to have completely bogus lengths */ - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ TwinVQ ------------------------------------ - * - * from Audio Tools Library (atl.zip) at http://jfaul.de/atl. - * a chunked header for proprietary (and apparently obsolete?) compressed data - * - * 0: "TWIN" - * 4: version id (string) - * 12: header size ["cardinal" -> bint] - * common chunk header (4 of ID, bint size) - * 24: channels (bint: 0=mono 1=stereo) - * bitrate (bint) - * 32: srate (bint khz 11, 22, 44 else *1000) - * security (bint 0) - * filesize (bint bytes) - * possible chunks: NAME COMT AUTH (c) FILE ALBM DATA - */ - -/* Monkey files start with "MAC ", but this is yet another compression-oriented format, I think (APE?) */ - -static int read_twinvq_header(const char *filename, int chan) -{ - data_format = MUS_UNKNOWN; - data_location = mus_char_to_bint((unsigned char *)(hdrbuf + 12)) + 16 + 8; - chans = 1 + mus_char_to_bint((unsigned char *)(hdrbuf + 24)); - srate = mus_char_to_bint((unsigned char *)(hdrbuf + 32)); - if (srate == 11) srate = 11025; else - if (srate == 22) srate = 22050; else - if (srate == 44) srate = 44100; else - srate *= 1000; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location); - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - return(MUS_NO_ERROR); -} - - -static int read_sdif_header(const char *filename, int chan) -{ - /* yeah, right! */ - return(MUS_UNSUPPORTED); -} - -static int read_nvf_header(const char *filename, int chan) -{ - /* info from nvftools by Tom Mander: */ - /* - Numbers stored little-endian. - - bytes 0-3: "NVF " magic number - bytes 4-7: 0x00000001 NVF version number? - bytes 8-11: 0x00000020 size of rest of header - bytes 12-15: "VFMT" VFMT chunk h - bytes 16-19: 0x00000001 VFMT version number? - bytes 20-23: 0x00000014 size of reset of VFMT header - bytes 24-27: 0x00007D00 32000 bit/s bitrate - bytes 28-29: 0x0001 channels - bytes 30-31: 0x0000 unknown - bytes 32-35: 0x00001F40 8000kHz sample rate - bytes 36-39: 0x00003E80 16000 - bytes 40-41: 0x0002 width in bytes of uncompressed data? - bytes 42-43: 0x0010 width in bits of compressed data? - - The rest of the data is G.721 data nibble packing big-endian, 4bits per - sample (nibble) single channel at 32kbit. When the Nomad records an NVF - file it does it in 92 sample (46 byte) frames or 0.0115sec. - */ - if (mus_char_to_lint((unsigned char *)(hdrbuf + 4)) != 1) return(mus_error(MUS_HEADER_READ_FAILED, "%s: NVF[4] != 1", filename)); - if (!(match_four_chars((unsigned char *)(hdrbuf + 12), I_VFMT))) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no VFMT chunk", filename)); - data_format = MUS_UNKNOWN; /* g721 --translate elsewhere */ - chans = 1; - srate = 8000; - data_location = 44; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location) * 2; /* 4 bit samps? */ - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ ADC ------------------------------------ - * also known as OGI format - * TIMIT format is identical except it omits the data format field (header size claims to be bytes) - * - * from ad.h and other files, ogitools-v1.0.tar.gz - * we'll look for the big/little endian sequence (short) 8 1 1-or-2 given big/little decision - * - * 0: header size in shorts (8 = 16 bytes) (OGI says this is in bytes) - * 2: version (1) - * 4: chans - * 6: rate (srate = 4000000/rate) - * 8: samples (int) -- seems to be off by 2 -- are they counting ints here? - * 12: data format (0 = big-endian) - * 16: data start -*/ - -static int read_adc_header(const char *filename, int chan) -{ - bool little; - little = (mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 12)) != 0); /* 0 = big endian */ - data_location = 16; - if (little) data_format = MUS_LSHORT; else data_format = MUS_BSHORT; - chans = big_or_little_endian_short((unsigned char *)(hdrbuf + 4), little); - srate = 4000000 / big_or_little_endian_short((unsigned char *)(hdrbuf + 6), little); - data_size = 2 * big_or_little_endian_int((unsigned char *)(hdrbuf + 8), little); - comment_start = 0; - comment_end = 0; - true_file_length = SEEK_FILE_LENGTH(chan); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ AVR -------------------------------------- - * - * 0: "2BIT" - * 4: sample name (null padded ASCII) - * 12: chans (short) (0 = mono, -1 = stereo) - * 14: sample size (8 or 16 bit) (short) (value is 8, 12, or 16) - * 16: sample format (signed or unsigned) (short) (0 = unsigned, -1 = signed) - * 18: loop (on/off), 20: midi (-1 = no MIDI) - * 22: srate - * avr.txt has: - * 22: Replay speed 0 = 5.485 Khz, 1 = 8.084 Khz, 2 = 10.971 Khz, 3 = 16.168 Khz, 4 = 21.942 Khz, 5 = 32.336 Khz, 6 = 43.885 Khz, 7 = 47.261 Khz - * 23: sample rate in Hertz (as a 3 byte quantity??) - * 26: length in samples - * 30: loop beg, 34: loop end, 38: midi (keyboard split), 40: compression, 42: nada ("reserved"), 44: name - * 64: comment (limited to 64 bytes) - * 128: data start - * - * the Atari .avr files appear to be 8000 Hz, mono, 8-bit linear unsigned data with an unknown header of 128 words - * apparently there was a change in format sometime in the 90's. - * - * The actual avr files I've found on the net are either garbled, or - * something is wrong with this definition (taken from CMJ and www.wotsit.org's avr.txt). - * SGI dmconvert assumes big-endian here -- this is an Atari format, so it's probably safe to assume big-endian. - */ - -static int read_avr_header(const char *filename, int chan) -{ - int dsize, dsigned, i; - chans = mus_char_to_bshort((unsigned char *)(hdrbuf + 12)); - if (chans == 0) chans = 1; else if (chans == -1) chans = 2; else return(mus_error(MUS_HEADER_READ_FAILED, "%s chans: %d", filename, chans)); - data_location = 128; - data_size = mus_char_to_bint((unsigned char *)(hdrbuf + 26)); - srate = mus_char_to_ubshort((unsigned char *)(hdrbuf + 24)); - dsize = mus_char_to_bshort((unsigned char *)(hdrbuf + 14)); - dsigned = mus_char_to_bshort((unsigned char *)(hdrbuf + 16)); - if (dsize == 16) - { - if (dsigned == 0) - data_format = MUS_UBSHORT; - else data_format = MUS_BSHORT; - } - else - { - if (dsize == 8) - { - if (dsigned == 0) - data_format = MUS_UBYTE; - else data_format = MUS_BYTE; - } - else return(mus_error(MUS_HEADER_READ_FAILED, "%s: unknown data format", filename)); - } - if (seek_and_read(chan, (unsigned char *)hdrbuf, 64, 64) <= 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s avr header: ran off end of file", filename)); - comment_start = 64; - i = 0; - while ((i < 64) && (hdrbuf[i] != 0)) i++; - comment_end = 64 + (i - 1); - true_file_length = SEEK_FILE_LENGTH(chan); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - - - -/* ------------------------------------ SNDT ------------------------------------- - * - * this taken from sndrtool.c (sox-10): (modified 6-Feb-98) - * 0: "SOUND" (or off by two throughout if not "0x1a"?) - * 5: 0x1a - * 6-7: 0 - * 8-11: nsamps (at 12) - * 12-15: 0 - * 16-19: nsamps - * 20-21: srate (little endian short) (at 22) - * 22-23: 0 - * 24-25: 10 - * 26-27: 4 - * 28-> : <filename> "- File created by Sound Exchange" - * .->95: 0 ? - */ - -/* similar is Sounder format: - * 0: 0 - * 2: short srate (little endian) - * 4: 10 - * 6: 4 - * then data - * but this format can't be distinguished from a raw sound file - */ - -static int read_sndt_header(const char *filename, int chan) -{ - if (hdrbuf[4] != 'D') return(mus_error(MUS_HEADER_READ_FAILED, "%s: SNDT[4] != 'D'", filename)); - data_format = MUS_UBYTE; - chans = 1; - srate = mus_char_to_ulshort((unsigned char *)(hdrbuf + 20)); - data_location = 126; - data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 8)); - if (data_size < 0) data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 10)); - if (srate <= 1) srate = mus_char_to_ulshort((unsigned char *)(hdrbuf + 22)); - true_file_length = SEEK_FILE_LENGTH(chan); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ Covox v8 ------------------------------------- - * - * 0: 377 125 377 252 377 125 377 252 x x 0's to 16 - * then 8-bit unsigned data - */ - -static int read_covox_header(const char *filename, int chan) -{ - data_format = MUS_UBYTE; - chans = 1; - data_location = 16; - srate = 8000; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ SMP ------------------------------------- - * - * 0: "SOUND SAMPLE DATA " - * 18: "2.1 " - * 22-81: comment - * 82-111: sample name - * header 112 bytes - * long samples (bytes = samples*2) - * then data start - * data - * always little endian - */ - -static int read_smp_header(const char *filename, int chan) -{ - data_format = MUS_LSHORT; - chans = 1; - comment_start = 22; - comment_end = 81; - data_location = 116; - lseek(chan, 112, SEEK_SET); - if (read(chan, hdrbuf, 4) != 4) return(mus_error(MUS_HEADER_READ_FAILED, "%s: SMP header truncated?", filename)); - data_size = (mus_char_to_lint((unsigned char *)hdrbuf)); - data_format = MUS_LSHORT; /* just a guess */ - srate = 8000; /* docs mention an srate floating around at the end of the file, but I can't find it in any example */ - true_file_length = SEEK_FILE_LENGTH(chan); - if ((data_size * 2) > true_file_length) - { - data_size = (true_file_length - data_location) / 2; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ SPPACK ------------------------------------- - * - * from AF docs: - * Bytes Type Contents - * 0 160 char Text strings (2 * 80) - * 160 80 char Command line - * 240 2 int Domain (1-time, 2-freq, 3-qfreq) - * 242 2 int Frame size - * 244 4 float Sampling frequency - * 252 2 int File identifier (i.e. #o100 #o303) - * 254 2 int Data type (0xfc0e = sampled data file) - * 256 2 int Resolution (in bits 8, 16) - * 258 2 int Companding flag - * 272 240 char Text strings (3 * 80) - * 512 ... -- Audio data - * - * at least one program is writing these headers using little endian data... - */ - -static int read_sppack_header(const char *filename, int chan) -{ - int typ, bits; - data_location = 512; - chans = 1; - lseek(chan, 240, SEEK_SET); - if (read(chan, hdrbuf, 22) != 22) return(mus_error(MUS_HEADER_READ_FAILED, "%s SPPACK header truncated?", filename)); - typ = mus_char_to_bshort((unsigned char *)hdrbuf); - data_format = MUS_UNKNOWN; - if (typ == 1) - { - if (((hdrbuf[254]) == 252) && ((hdrbuf[255]) == 14)) /* #xfc and #x0e */ - { - float sr; - typ = mus_char_to_bshort((unsigned char *)(hdrbuf + 18)); - bits = mus_char_to_bshort((unsigned char *)(hdrbuf + 16)); - sr = mus_char_to_bfloat((unsigned char *)(hdrbuf + 4)); - srate = (int)sr; - switch (typ) - { - case 1: if (bits == 16) data_format = MUS_BSHORT; else data_format = MUS_BYTE; break; - case 2: data_format = MUS_ALAW; break; - case 3: data_format = MUS_MULAW; break; - default: data_format = MUS_UNKNOWN; break; - } - data_size = SEEK_FILE_LENGTH(chan); - data_size = mus_bytes_to_samples(data_format, data_size - 512); - comment_start = 0; - comment_end = 0; - } - } - true_file_length = SEEK_FILE_LENGTH(chan); - if (true_file_length < data_location) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - if (data_size > mus_bytes_to_samples(data_format, true_file_length)) - data_size = mus_bytes_to_samples(data_format, true_file_length - data_location); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ ESPS (Entropic Signal Processing System) ------------------------------------- - * - * specs at ftp.entropic.com (also known as "SD" format) - * from AFgetInfoES.c: - * - * Bytes Type Contents - * 8 -> 11 -- Header size (bytes) - * 12 -> 15 int Sampled data record size - * 16 -> 19 int File identifier: 0x00006a1a or 0x1a6a0000 - * 40 -> 65 char File creation date - * 124 -> 127 int Number of samples - * 132 -> 135 int Number of doubles in a data record - * 136 -> 139 int Number of floats in a data record - * 140 -> 143 int Number of longs in a data record - * 144 -> 147 int Number of shorts in a data record - * 148 -> 151 int Number of chars in a data record - * 160 -> 167 char User name - * 333 -> H-1 -- "Generic" header items, including "record_freq" {followed by a "double8"=64-bit ?} - * H -> ... -- Audio data - */ - -static int read_esps_header(const char *filename, int chan) -{ - char str[80]; - bool happy = true; - off_t curbase, hend; - int k, j, n, chars, floats, shorts, doubles, bytes; - bool little; - little = (hdrbuf[18] == 0); - if (little) - data_location = mus_char_to_lint((unsigned char *)(hdrbuf + 8)); - else data_location = mus_char_to_bint((unsigned char *)(hdrbuf + 8)); - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - srate = 8000; - chans = 1; - lseek(chan, 132, SEEK_SET); - CHK_READ(chan, hdrbuf, HDRBUFSIZ); - if (little) - { - doubles = mus_char_to_lint((unsigned char *)hdrbuf); - floats = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); - shorts = mus_char_to_lint((unsigned char *)(hdrbuf + 12)); - chars = mus_char_to_lint((unsigned char *)(hdrbuf + 16)); - } - else - { - doubles = mus_char_to_bint((unsigned char *)hdrbuf); - floats = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); - shorts = mus_char_to_bint((unsigned char *)(hdrbuf + 12)); - chars = mus_char_to_bint((unsigned char *)(hdrbuf + 16)); - } - if (shorts != 0) - { - data_format = ((little) ? MUS_LSHORT : MUS_BSHORT); - chans = shorts; - } - else - { - if (doubles != 0) - { - data_format = ((little) ? MUS_LDOUBLE_UNSCALED : MUS_BDOUBLE_UNSCALED); - chans = doubles; - } - else - { - if (floats != 0) - { - data_format = ((little) ? MUS_LFLOAT_UNSCALED : MUS_BFLOAT_UNSCALED); - chans = floats; - } - else - { - if (chars != 0) - { - data_format = MUS_BYTE; /* ?? */ - chans = chars; - } - } - } - } - /* search for "record_freq" to get srate */ - lseek(chan, 333, SEEK_SET); - CHK_READ(chan, hdrbuf, HDRBUFSIZ); - curbase = 333; - hend = curbase + HDRBUFSIZ; - k = 0; - n = 0; - for (j = 0; j < 80; j++) str[j] =' '; - while (happy) - { - str[k] = hdrbuf[n]; - if ((str[k] == 'q') || (str[k] == 3) || ((curbase + n + 1) >= data_location) || (k == 78)) - { /* 3 = C-C marks end of record (?) */ - str[k + 1] = 0; - if (strcmp(str, "record_freq") == 0) - { - if (seek_and_read(chan, (unsigned char *)hdrbuf, curbase + n, 32) <= 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s esps header: ran off end of file", filename)); - n = 0; - if (little) - srate = (int)mus_char_to_ldouble((unsigned char *)(hdrbuf + 8)); - else srate = (int)mus_char_to_bdouble((unsigned char *)(hdrbuf + 8)); - happy = false; - } - if ((curbase + n + 1) >= data_location) happy = false; - k = 0; - } - else - k++; - n++; - if (n >= hend) - { - curbase += hend; - n = 0; - bytes = read(chan, hdrbuf, HDRBUFSIZ); - if (bytes != HDRBUFSIZ) break; - hend = HDRBUFSIZ; - } - } - if (srate == 0) srate = 8000; - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ INRS ------------------------------------- - * - * from AFgetInfoIN.c: - * - * INRS-Telecommunications audio file: - * Bytes Type Contents - * 0 -> 3 float Sampling Frequency (VAX float format) - * 6 -> 25 char Creation time (e.g. Jun 12 16:52:50 1990) - * 26 -> 29 int Number of speech samples in the file (? -- old INRS files omit this) - * The data in an INRS-Telecommunications audio file is in 16-bit integer (little-endian) - * format. Header is always 512 bytes. Always mono. - * - */ - -static int inrs_srates[NINRS] = {6500, 6667, 8000, 10000, 12000, 16000, 20000}; - -static int read_inrs_header(const char *filename, int chan, int loc) -{ - true_file_length = SEEK_FILE_LENGTH(chan); - comment_start = 6; - comment_end = 25; - data_format = MUS_LSHORT; - srate = loc; - chans = 1; - data_location = 512; - true_file_length = SEEK_FILE_LENGTH(chan); - if (true_file_length < data_location) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - data_size = mus_bytes_to_samples(data_format, true_file_length - data_location); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ MAUD ------------------------------------- - * - * very similar to AIFF: - * "MHDR" => 4: chunksize (32) - * 8: samples - * 12: bits - * 14: ditto - * 16: clock freq - * 20: clock div (srate = freq/div) - * 22: chan info (0 = mono, 1 = stereo) - * 24: ditto(?!) - * 26: format (0 = unsigned 8 or signed 16 (see bits), 2 = alaw, 3 = mulaw) - * 28-40: unused - * "MDAT" => data - * "ANNO" => comment - */ - -static int read_maud_header(const char *filename, int chan) -{ - int chunksize, offset, chunkloc; - bool happy; - type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); - chunkloc = 12; - offset = 0; - data_format = MUS_BYTE; - srate = 0; - chans = 1; - happy = true; - update_form_size = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); - while (happy) - { - offset += chunkloc; - if (seek_and_read(chan, (unsigned char *)hdrbuf, offset, 32) <= 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s maud header: chunks confused at %d", filename, offset)); - chunksize = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); - if ((chunksize == 0) && /* can be empty data chunk? */ - (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) - break; - if (match_four_chars((unsigned char *)hdrbuf, I_MHDR)) - { - int num, den; - data_size = mus_char_to_bint((unsigned char *)(hdrbuf + 8)); - num = mus_char_to_bint((unsigned char *)(hdrbuf + 16)); - den = mus_char_to_bshort((unsigned char *)(hdrbuf + 20)); - if (den == 0) den = 1; - srate = (int)(num / den); - num = mus_char_to_bshort((unsigned char *)(hdrbuf + 12)); - den = mus_char_to_bshort((unsigned char *)(hdrbuf + 26)); - if (num == 8) - { - switch (den) - { - case 0: data_format = MUS_UBYTE; break; - case 2: data_format = MUS_ALAW; break; - case 3: data_format = MUS_MULAW; break; - default: data_format = MUS_UNKNOWN; break; - } - } - else data_format = MUS_BSHORT; - num = mus_char_to_bshort((unsigned char *)(hdrbuf + 22)); - if (num == 0) chans = 1; else chans = 2; - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_ANNO)) - { - comment_start = offset + 8; - comment_end = comment_start + chunksize - 1; - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_MDAT)) - { - data_location = offset + 12; - happy = false; - } - } - } - chunkloc = (8 + chunksize); - if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ - } - if (data_location == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no MDAT chunk?", filename)); - true_file_length = SEEK_FILE_LENGTH(chan); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ CSL ------------------------------------- - * - * "Computerized Speech Labs -- this info taken from wavesurfer/snack - * - * very similar to AIFF: - * 0: FORM - * 4: DS16 (kinda weird) - * 8: size (int le) - * 12: chunks - * HEDR or HDR8 - * 4: size (int) - * samp: short, chans: 1 at 36 if not (int) -1, chans: 2? - * srate at 28 (le int?) - * other chunks: SD_B, SDA_ SDAB with data bytes as data followed by data - */ - -static int read_csl_header(const char *filename, int chan) -{ - int chunksize, offset, chunkloc; - bool happy; - type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); - chunkloc = 12; - offset = 0; - data_format = MUS_LSHORT; - srate = 0; - chans = 1; - happy = true; - update_form_size = mus_char_to_lint((unsigned char *)(hdrbuf + 8)); - while (happy) - { - offset += chunkloc; - if (seek_and_read(chan, (unsigned char *)hdrbuf, offset, 64) <= 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s csl header: chunks confused at %d", filename, offset)); - chunksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); - if ((chunksize == 0) && /* can be empty data chunk? */ - (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) - break; - if ((match_four_chars((unsigned char *)hdrbuf, I_HEDR)) || - (match_four_chars((unsigned char *)hdrbuf, I_HDR8))) - { - /* 8..20: date as ascii */ - /* 32: data length (int) in bytes */ - if ((mus_char_to_lshort((unsigned char *)(hdrbuf + 36)) != -1) && /* these are maxamps, -1=none */ - (mus_char_to_lshort((unsigned char *)(hdrbuf + 38)) != -1)) - chans = 2; - srate = mus_char_to_lint((unsigned char *)(hdrbuf + 28)); - } - else - { - if (match_four_chars((unsigned char *)hdrbuf, I_NOTE)) - { - comment_start = offset + 8; - comment_end = comment_start + chunksize - 1; - } - else - { - if ((match_four_chars((unsigned char *)hdrbuf, I_SDA_)) || - (match_four_chars((unsigned char *)hdrbuf, I_SDAB)) || - (match_four_chars((unsigned char *)hdrbuf, I_SD_B))) - { - data_location = offset + 8; - data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); - happy = false; - } - } - } - chunkloc = (8 + chunksize); - if (chunksize & 1) chunkloc++; - } - if (data_location == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no SDxx chunk?", filename)); - true_file_length = SEEK_FILE_LENGTH(chan); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ snack SMP ------------------------------------- - * - * there's apparently yet another "smp" format (from nist??) - * file = samp - * sftot = 22050 - * msb = last - * nchans = 1 - * preemph = none - * born = snack - * msb = last here -> little endian? - * data at 1024 - */ - -static int read_file_samp_header(const char *filename, int chan) -{ - int i = 0; - char *locbuf; - data_location = 1024; - chans = 1; - srate = 8000; - data_format = MUS_LSHORT; - lseek(chan, 10, SEEK_SET); - locbuf = (char *)CALLOC(1024, sizeof(char)); - CHK_READ(chan, locbuf, 1024); - while (i < 1024) - { - if (strncmp((char *)(locbuf + i), "sftot", 5) == 0) - sscanf((const char *)(&locbuf[i + 6]), "%d", &srate); - if (strncmp((char *)(locbuf + i), "nchans", 6) == 0) - sscanf((const char *)(&locbuf[i + 7]), "%d", &chans); - if (strncmp((char *)(locbuf + i), "msb", 3) == 0) - if (strncmp((char *)(locbuf + i + 4), "first", 5) == 0) - data_format = MUS_BSHORT; - while ((i < 1024) && (locbuf[i] != 10) && (locbuf[i] != 0)) i++; - i++; - } - FREE(locbuf); - true_file_length = SEEK_FILE_LENGTH(chan); - if (true_file_length < data_location) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - data_size = mus_bytes_to_samples(data_format, true_file_length - data_location); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ Sound Designer I ------------------------------------- - * - * complicated and defined in terms of Pascal records, so the following is a stab in the dark: - * - * 0: 1336 (i.e. header size) - * 764: comment (str255) - * 1020: sample rate (long) - * 1028: data size (short) - * 1030: a code string describing the data type (i.e. "linear") (str32) - * 1064: user comment (str255) - * - * file type: 'SFIL' - * - * always big_endian - */ - -static int read_sd1_header(const char *filename, int chan) -{ - int n; - chans = 1; - data_location = 1336; - lseek(chan, 1020, SEEK_SET); - if (read(chan, hdrbuf, 64) != 64) return(mus_error(MUS_HEADER_READ_FAILED, "%s Sound Designer I header truncated?", filename)); - srate = mus_char_to_bint((unsigned char *)hdrbuf); - n = mus_char_to_bshort((unsigned char *)(hdrbuf + 8)); - if (n == 16) - data_format = MUS_BSHORT; - else data_format = MUS_BYTE; - true_file_length = SEEK_FILE_LENGTH(chan); - if (true_file_length < data_location) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - data_size = mus_bytes_to_samples(data_format, true_file_length - data_location); - n = ((unsigned char)hdrbuf[44]); - if (n != 0) - { - comment_start = 1064; - comment_end = comment_start + n - 1; - } - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ PSION alaw ------------------------------------- - * - * 0: "ALawSoundFile**" - * 16: version - * 18: length (bytes) - * 22: padding - * 24: repeats - * 26-32: nada - * 32: data - * - * always mono 8-bit alaw 8000 Hz. All the examples on the psion net site appear to be little endian. - */ - -static int read_psion_header(const char *filename, int chan) -{ - if ((hdrbuf[13] != '*') || (hdrbuf[14] != '*')) return(mus_error(MUS_HEADER_READ_FAILED, "%s: PSION[13, 14] != '*'", filename)); - chans = 1; - data_location = 32; - srate = 8000; - data_format = MUS_ALAW; - data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 18)); /* always little-endian? */ - true_file_length = SEEK_FILE_LENGTH(chan); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ Gravis Ultrasound Patch ------------------------------------- - * - * http://www.gravis.com/Public/sdk/PATCHKIT.ZIP - * - * header [128], instruments [62], layers [49], waveheaders (nested) - * always little endian, actual files don't match exactly with any documentation - * - * Header block: - * 0: "GF1PATCH100" or "GF1PATCH110" - * 12: "ID#000002" - * 22: comment (copyright notice) (60 bytes ASCIZ) - * 82: number of instruments - * 83: number of voices - * 84: wave channels - * 85: number of waves - * 87: vol - * 89: size? - * 93: reserved (36? bytes) - * - * Instrument block: - * 0: id - * 2: name (16 bytes) - * 18: size - * 22: number of layers - * 23: reserved (40? bytes) - * - * Layer block: - * 0: "previous" - * 1: id - * 2: size - * 6: number of wave samples - * 10: reserved (40? bytes) - * - * Wave block: - * 0: name (7 bytes ASCIZ) - * 7: "fractions" - * 8: data size of wave sample - * 12: loop start - * 16: loop end - * 20: sample rate - * 22: low freq - * 26: high freq - * 30: root freq - * 34: tune - * 36: balance - * 37: envelope data (6+6 bytes I think) - * 49: tremolo and vibrato data (6 bytes) - * 55: mode bit 0: 8/16, 1: signed/unsigned - * 56: scale freq - * 58: scale factor - * 60: reserved (36 bytes) - * followed by data presumably - */ - -static int read_gravis_header(const char *filename, int chan) -{ - int mode; - lseek(chan, 0, SEEK_SET); - if (read(chan, hdrbuf, 128) != 128) return(mus_error(MUS_HEADER_READ_FAILED, "%s PAT header truncated?", filename)); - chans = hdrbuf[84]; - if (chans == 0) chans = 1; - comment_start = 22; - comment_end = 81; - lseek(chan, 239, SEEK_SET); /* try to jump to wave sample block (128+62+49) */ - CHK_READ(chan, hdrbuf, 128); - srate = mus_char_to_ulshort((unsigned char *)(hdrbuf + 20)); - data_size = mus_char_to_ulshort((unsigned char *)(hdrbuf + 8)); - mode = hdrbuf[55]; - if (mode & 1) - { - if (mode & 2) - data_format = MUS_ULSHORT; - else data_format = MUS_LSHORT; - } - else - { - if (mode & 2) - data_format = MUS_UBYTE; - else data_format = MUS_BYTE; - } - data_location = 337; - true_file_length = SEEK_FILE_LENGTH(chan); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ Goldwave ------------------------------------- - * - * http://web.cs.mun.ca/~chris3/goldwave/goldwave.html - */ - -static int read_goldwave_header(const char *filename, int chan) -{ - chans = 1; - data_location = 28; - data_format = MUS_LSHORT; - data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 22)); - true_file_length = SEEK_FILE_LENGTH(chan); - if (true_file_length < data_location) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - if ((data_size <= 24) || (data_size > true_file_length)) - data_size = (true_file_length - data_location) / 2; - else data_size /= 2; - srate = mus_char_to_lint((unsigned char *)(hdrbuf + 18)); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ Sonic Resource Foundry ------------------------------------- - * - * more reverse engineering... - * http://www.sfoundry.com/ - */ - -static int read_srfs_header(const char *filename, int chan) -{ - chans = 1; /* might be short at header[4] */ - data_location = 32; - true_file_length = SEEK_FILE_LENGTH(chan); - if (true_file_length < data_location) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - data_size = (true_file_length - data_location) / 2; - srate = mus_char_to_lint((unsigned char *)(hdrbuf + 6)); - data_format = MUS_LSHORT; - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ Quicktime ------------------------------------- - * - * infinitely complicated -- see Quicktime File Format doc from Apple. - * there's no relation between this document and actual files -- a bizarre joke? - */ - -static int read_qt_header(const char *filename, int chan) -{ - chans = 1; - data_location = 12; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location); - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - srate = 11025; /* ?? */ - data_format = MUS_UBYTE; - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ SBStudioII ------------------------------------- - * - * from a file created by Convert 1.4 - * 0: SND <space> - * 8: file size - 8 - * SNNA SNIN SNDT blocks: - * - * built in blocks, other names are SNIN, SNDT - * need to scan for SNDT, block length, data - * SNNA len name - * supposedly ends with END (but my examples don't) - * SNIN: - * num (2), reserved (2), tuning (1), vol (2), type (2) bit 0: 1 = PCM, bit 1: 1 = 16, 0 = 8 (then loop data) - * info from Pac.txt (pac.zip) at http://www.wotsit.org/music.htm - */ - -static int read_sbstudio_header(const char *filename, int chan) -{ - int i, tmp; - bool happy; - unsigned char *bp; - lseek(chan, 0, SEEK_SET); - CHK_READ(chan, hdrbuf, HDRBUFSIZ); - chans = 1; - srate = 8000; /* no sampling rate field in this header */ - data_format = MUS_UNKNOWN; - true_file_length = SEEK_FILE_LENGTH(chan); - happy = true; - i = 8; - bp = (unsigned char *)(hdrbuf + 8); - while (happy) - { - if (match_four_chars(bp, I_SNDT)) - { - data_size = mus_char_to_lint((unsigned char *)(bp + 4)); - data_location = i + 8; - happy = false; - } - else - { - if (match_four_chars(bp, I_SNIN)) - { - tmp = mus_char_to_lshort((unsigned char *)(bp + 15)); - if ((tmp & 1) == 0) - data_format = MUS_UNKNOWN; - else - { - if ((tmp & 2) == 0) - data_format = MUS_BYTE; - else data_format = MUS_LSHORT; - } - i += 26; - bp += 26; - } - else - { - if (match_four_chars(bp, I_SNNA)) - { - tmp = mus_char_to_lint((unsigned char *)(bp + 4)); - i += tmp; - bp += tmp; - } - else - { - i++; - bp++; - } - } - } - if (i >= HDRBUFSIZ) - { - data_format = MUS_UNKNOWN; - happy = false; - } - } - if (data_location == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no SNDT chunk?", filename)); - if ((data_size == 0) || (data_format == MUS_UNKNOWN)) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data size or format bogus", filename)); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ Delusion Sound ------------------------------------- - * - * more reverse engineering... - * from a file created by Convert 1.4 - * 0: DDSF - * 5: name (text) - * 55: data - * probaby similar to DMF format described in Dmf-form.txt but I don't see any other block names in the data - */ - -static int read_delusion_header(const char *filename, int chan) -{ - if ((hdrbuf[4] != 1) || (hdrbuf[5] > 128) || (hdrbuf[6] > 128) || (hdrbuf[7] > 128)) - return(mus_error(MUS_HEADER_READ_FAILED, "%s DDSF name bogus", filename)); - chans = 1; - data_location = 55; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location); - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - srate = 8000; - data_format = MUS_LSHORT; - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ Farandole Composer WaveSample ------------------------------------- - * - * 0: FSM 254 - * libmodplug load_far.cpp uses: #define FARFILEMAGIC 0xFE524146 ("FAR="?) - * 4: name (text) (32 bytes) - * 36: 10, 13, 26 or something like that - * 39: len? - * 40: volume - * 41: looping data - * 49: type (0 = 8-bit, else 16) - * 50: loop mode - * 51: data - * described in Fsm.txt and Far-form.txt http://www.wotsit.org/music.htm - */ - -static int read_farandole_header(const char *filename, int chan) -{ - chans = 1; - data_location = 51; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location); - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - srate = 8000; - if (hdrbuf[49] == 0) - data_format = MUS_BYTE; - else data_format = MUS_LSHORT; - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ Yamaha TX-16W ------------------------------------- - * - * ftp://ftp.t0.or.at/pub/sound/tx16w/samples.yamaha - * ftp://ftp.t0.or.at/pub/sound/tx16w/faq/tx16w.tec - * http://www.t0.or.at/~mpakesch/tx16w/ - * - * from tx16w.c sox 12.15: (7-Oct-98) (Mark Lakata and Leigh Smith) - * char filetype[6] "LM8953" - * nulls[10], - * dummy_aeg[6] - * format 0x49 = looped, 0xC9 = non-looped - * sample_rate 1 = 33 kHz, 2 = 50 kHz, 3 = 16 kHz - * atc_length[3] if sample rate 0, [2]&0xfe = 6: 33kHz, 0x10:50, 0xf6: 16, depending on [5] but to heck with it - * rpt_length[3] (these are for looped samples, attack and loop lengths) - * unused[2] - */ - -static int read_tx16w_header(const char *filename, int chan) -{ - if ((hdrbuf[4] != '5') || (hdrbuf[5] != '3')) return(mus_error(MUS_HEADER_READ_FAILED, "%s TX16 magic number bogus", filename)); - chans = 1; - data_location = 32; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location); - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - srate = 16000; - if (hdrbuf[23] == 1) srate = 33000; - else if (hdrbuf[23] == 2) srate = 50000; - else if (hdrbuf[23] == 3) srate = 16000; - else if (hdrbuf[23] == 0) - { - if ((hdrbuf[26] & 0xFE) == 6) srate = 33000; - else if ((hdrbuf[26] & 0xFE) == 0x10) srate = 50000; - else if ((hdrbuf[26] & 0xFE) == 0xf6) srate = 16000; - } - original_data_format = MUS_UNKNOWN; - data_format = MUS_UNKNOWN; - data_size = (off_t)((double)data_size / 1.5); - if (hdrbuf[22] == 0x49) - { - loop_modes[0] = 1; - loop_starts[0] = ((hdrbuf[26] & 1) << 16) + (hdrbuf[25] << 8) + hdrbuf[24]; - loop_ends[0] = loop_starts[0] + ((hdrbuf[29] & 1) << 16) + (hdrbuf[28] << 8) + hdrbuf[27]; - } - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ Yamaha SY-85 and SY-99 ------------------------------------- - * - * more reverse engineering... - * 0: SY85 (SY80 is SY-99) SY85ALL SY80 SYALL - * 5: name ("WAVE1") - * (26 int len) - * (33: comment or prompt?) - * data in 16-bit little endian (?) - */ - -static int read_sy85_header(const char *filename, int chan) -{ - if ((hdrbuf[4] != ' ') && (hdrbuf[4] != 'A')) return(mus_error(MUS_HEADER_READ_FAILED, "%s: unknown magic number", filename)); - chans = 1; - data_location = 1024; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location); - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - srate = 8000; /* unknown */ - data_format = MUS_BSHORT; /* not right */ - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ Kurzweil 2000 ------------------------------------- - * - * "PRAM" then header len as big endian int?? - * from krz2tx.c (Mark Lakata) - */ -static int read_kurzweil_2000_header(const char *filename, int chan) -{ - chans = 1; - data_location = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location); - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - srate = 44100; /* unknown */ - data_format = MUS_BSHORT; - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ Korg ------------------------------------- - * - * "SMP1" -- guessing on the rest - */ -static int read_korg_header(const char *filename, int chan) -{ - chans = 1; - data_location = 70; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location); - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - srate = mus_char_to_bint((unsigned char *)(hdrbuf + 48)); - data_format = MUS_BSHORT; - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ Maui ------------------------------------- - * - * "Maui" -- guessing on the rest - */ -static int read_maui_header(const char *filename, int chan) -{ - lseek(chan, 420, SEEK_SET); - if (read(chan, hdrbuf, 64) != 64) return(mus_error(MUS_HEADER_READ_FAILED, "%s truncated maui header?", filename)); - chans = 1; - data_location = 776; - true_file_length = SEEK_FILE_LENGTH(chan); - if (true_file_length < data_location) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 8)); - if ((data_size * 2) > true_file_length) - data_size = (true_file_length - data_location) / 2; - srate = mus_char_to_lint((unsigned char *)(hdrbuf)); - data_format = MUS_LSHORT; - return(MUS_NO_ERROR); -} - -/* ------------------------------------ Impulse Tracker ------------------------------------- - * - * data from its2raw.c by Ben Collver - * 0: IMPS - * 4: filename (12 bytes) - * 17: global vol - * 18: flags (1: 16-bit or 8(0), 2: stereo or mono(0) - * 19: default vol - * 20: sample name (26 bytes) - * 46: convert - * 47: default pan - * 48: length (samps) - * 52: loop start - * 56: loop end - * 60: srate - * 64: sustain loop start - * 68: sustain loop end - * 72: data location - * 76: vib speed - * 77: vib depth - * 78: vib wave - * 79: vib rate - */ -static int read_impulsetracker_header(const char *filename, int chan) -{ - if (hdrbuf[18] & 4) chans = 2; else chans = 1; - if (hdrbuf[18] & 2) data_format = MUS_LSHORT; else data_format = MUS_BYTE; - data_location = mus_char_to_lint((unsigned char *)(hdrbuf + 72)); - true_file_length = SEEK_FILE_LENGTH(chan); - if (true_file_length < data_location) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - data_size = (true_file_length - data_location); - srate = mus_char_to_lint((unsigned char *)(hdrbuf + 60)); - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - -#if 0 -/* ------------------------------------ AKAI 3? ------------------------------------- - */ -static int read_akai3_header(const char *filename, int chan) -{ - chans = 1; - data_location = 192; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location); - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - if (hdrbuf[1] == 0) srate = 22050; else srate = 44100; - data_format = MUS_LSHORT; - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} -#endif - - -/* ------------------------------------ AKAI 4 ------------------------------------- - * - * 1, 4, info from Paul Kellet -- lost the url ("MPC-2000") - */ -static int read_akai4_header(const char *filename, int chan) -{ - chans = hdrbuf[21] + 1; - data_location = 42; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location); - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - srate = mus_char_to_ulshort((unsigned char *)(hdrbuf + 40)); - data_format = MUS_LSHORT; - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ PVF (portable voice format) ------------------------------------- - * - * info from mgetty-voice-1.1.22/voice/libpvf/lib.c - * this is a modem-related interchange format - * - * PVF1\n - * 1 11025 32\n - * then data - * PVF1 = binary data, PVF2 = ascii - * chans | srate | sample size - */ - -static int read_pvf_header(const char *filename, int chan) -{ - char *buf; - int bits, i; - if (hdrbuf[4] != '\n') return(mus_error(MUS_HEADER_READ_FAILED, "PVF header messed up")); - type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); - buf = (char *)(hdrbuf + 5); - sscanf(buf, "%d %d %d", &chans, &srate, &bits); - if (chans < 1) chans = 1; - if (srate < 0) srate = 8000; - if (bits < 8) bits = 8; - for (i = 6; i < INITIAL_READ_SIZE; i++) - if (hdrbuf[i] == '\n') - { - data_location = i + 1; - break; - } - if (data_location == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s PVF header bad data location", filename)); - if (match_four_chars((unsigned char *)hdrbuf, I_PVF2)) - { - data_format = MUS_UNKNOWN; /* ascii text */ - return(mus_error(MUS_HEADER_READ_FAILED, "%s PVF header unknown data format", filename)); - } - /* big endian data -- they're using htonl etc */ - if (bits == 8) - data_format = MUS_BYTE; - else - if (bits == 16) - data_format = MUS_BSHORT; - else data_format = MUS_BINT; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = mus_bytes_to_samples(data_format, true_file_length - data_location); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ Ultratracker WaveSample ------------------------------------- - * - * 0..31: name (32 = ctrl-Z?) - * 33: PMUWFD (but docs say this is "dos name" -- perhaps we can't recognize this header type reliably) - * 44: 4 ints giving loop and size data - * 60: vol - * 61: "bidi" 0|8|24->8 bit else 16 -- but actual example has 0 with 16-bit - * 62: finetune - * 64: data (or 68?) - * described in Ult-form.txt http://www.wotsit.org/music.htm - */ - -static int read_ultratracker_header(const char *filename, int chan) -{ - chans = 1; - data_location = 64; - true_file_length = SEEK_FILE_LENGTH(chan); - if (true_file_length < data_location) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - data_size = (true_file_length - data_location); - srate = 8000; - data_format = MUS_LSHORT; - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ Sample dump exchange ------------------------------------- - * - * 0: SDX: - * sdx2tx.c (Mark Lakata) reads from 4 for 26 (^z), then - * version (1) - * comment as pascal-style string (byte len, bytes chars) - * then 23 bytes: - * 0: packing (0 = pcm) - * 1: midi channel - * 2 + 256*[3]: sample number - * 4: sample format (15: 16 bit unsigned(?), 8: 8bit unsigned(?) - * 5: sample rate (big int?) - * 9: sample length - * 13: loop start - * 17: loop end - * 21: loop type - * 22: reserved - */ - -static int read_sample_dump_header(const char *filename, int chan) -{ - int i, len; - for (i = 4; i < HDRBUFSIZ; i++) if (hdrbuf[i] == 26) break; - len = hdrbuf[i + 2]; - if (len > 0) - { - comment_start = i + 3; - comment_end = i + 3 + len; - } - seek_and_read(chan, (unsigned char *)hdrbuf, i + 3 + len, HDRBUFSIZ); - srate = mus_char_to_lint((unsigned char *)(hdrbuf + 5)); - loop_modes[0] = 0; - if (hdrbuf[21] == 0) - { - loop_modes[0] = 1; - loop_starts[0] = mus_char_to_lint((unsigned char *)(hdrbuf + 13)); - loop_ends[0] = mus_char_to_lint((unsigned char *)(hdrbuf + 17)); - } - /* data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 9)); */ - if ((srate < 100) || (srate > 100000)) srate = 8000; - chans = 1; - data_location = i + 3 + len + 23; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location); - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - if (hdrbuf[0] == 0) - data_format = MUS_ULSHORT; - else data_format = MUS_UNKNOWN; - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ Digiplayer ST3 ------------------------------------- - * - * 0: 1 (use 'SCRS' at 76) - * 1: name - * 13: nada - * 14: "paragraph" offset of sample data - * 16: length in bytes (looks like #samples in the actual files...) - * 20: loop start - * 24: loop end - * 28: vol - * 29: ? - * 30: 0 = unpacked, 1 = DP30ADPCM - * 31: bits: 0 = loop, 1 = stereo (chans not interleaved!), 2 = 16-bit samples (little endian) - * 32: freq - * 36: nada - * 40: nada - * 42: 512 - * 44: date? - * 48: sample name (28 char ASCIZ) - * 76: 'SCRS' - * 80: data starts - * - * info from http://www.wotsit.org/ S3m-form.txt - */ - -static int read_digiplayer_header(const char *filename, int chan) -{ - chans = 1; - data_location = 80; - true_file_length = SEEK_FILE_LENGTH(chan); - data_size = (true_file_length - data_location); - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - srate = 8000; - data_format = MUS_ULSHORT; - if (hdrbuf[30] & 2) chans = 2; - if (hdrbuf[30] & 1) - data_format = MUS_UNKNOWN; - else - { - if (hdrbuf[30] & 4) data_format = MUS_UBYTE; /* may be backwards -- using Convert 1.4 output here */ - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ CSRE adf ------------------------------------- - * - * Info from Stuart Rosen - * - * 0-7: CSRE40 - * 8: samples in file (long) - * 12: center line(?) (long) - * 16: start channel(?) (unsigned) - * 18: bits -- 12 or 16 (unsigned) -- is 12 bit sample file packed? - * 20: number system (0 = signed, 1 = unsigned) - * 22: srate in kHz (float) - * 26: peak sample in file (long) (can be 0) - * 30-511: comment possibly - * - * probably always little-endian (S.R. reads each sample using sizeof(int) -> 16 bits I think) - * if 12-bit unsigned we need to handle the offset somewhere - */ - -static int read_adf_header(const char *filename, int chan) -{ - int bits, numsys; - lseek(chan, 0, SEEK_SET); - if ((hdrbuf[4] != '4') || (hdrbuf[5] != '0')) return(mus_error(MUS_HEADER_READ_FAILED, "%s csre header bad magic number", filename)); - if (read(chan, hdrbuf, 30) != 30) return(mus_error(MUS_HEADER_READ_FAILED, "%s csre header truncated?", filename)); - chans = 1; - numsys = mus_char_to_ulshort((unsigned char *)(hdrbuf + 20)); - bits = mus_char_to_ulshort((unsigned char *)(hdrbuf + 18)); - if ((bits == 16) || (bits == 12)) - { - if (numsys == 0) - data_format = MUS_LSHORT; - else data_format = MUS_ULSHORT; - } - else data_format = MUS_UNKNOWN; - srate = (int)(1000 * mus_char_to_lfloat((unsigned char *)(hdrbuf + 22))); - data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 8)); - data_location = 512; - true_file_length = SEEK_FILE_LENGTH(chan); - if (true_file_length < data_location) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - if (data_size > mus_bytes_to_samples(data_format, true_file_length - data_location)) - data_size = mus_bytes_to_samples(data_format, true_file_length - data_location); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ Diamondware ------------------------------------- - * - * info from Keith Weiner at DiamondWare (www.dw.com): - * - * 0-22: DWD Header Byte "DiamondWare Digitized\n\0" - * 23: 1A (EOF to abort printing of file) - * 24: Major version number - * 25: Minor version number - * 26-29: Unique sound ID (checksum XOR timestamp) - * 30: Reserved - * 31: Compression type (0 = none) - * 32-33: Sampling rate (in Hz) - * 34: Number of channels (1 = mono, 2 = stereo) (interleaved) - * 35: Number of bits per sample (8, 16) (all data signed) - * 36-37: Absolute value of largest sample in file - * 38-41: length of data section (in bytes) - * 42-45: # samples (16-bit stereo is 4 bytes/sample) - * 46-49: Offset of data from start of file (in bytes) - * 50-53: Reserved for future expansion (markers) - * 54-55: Padding - * 56:offset -- additional text: field = value - * suggested fields: TITLE, ORGARTIST, GENRE, KEYWORDS, ORGMEDIUM, EDITOR, DIGITIZER, COMMENT, SUBJECT, COPYRIGHT, SOFTWARE, CREATEDATE - * - * since this is all Windows/DOS oriented, I'll assume little-endian byte order. - */ - -static int read_diamondware_header(const char *filename, int chan) -{ - lseek(chan, 0, SEEK_SET); - if (read(chan, hdrbuf, 64) != 64) return(mus_error(MUS_HEADER_READ_FAILED, "%s truncated diamondware header?", filename)); - chans = hdrbuf[34]; - if (hdrbuf[31] == 0) - { - if (hdrbuf[35] == 8) data_format = MUS_BYTE; - else data_format = MUS_LSHORT; - } - else - { - data_format = MUS_UNKNOWN; - return(mus_error(MUS_HEADER_READ_FAILED, "%s unknown data format", filename)); - } - srate = mus_char_to_ulshort((unsigned char *)(hdrbuf + 32)); - data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 38)); - data_location = mus_char_to_lint((unsigned char *)(hdrbuf + 46)); - true_file_length = SEEK_FILE_LENGTH(chan); - if (true_file_length < data_location) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - if (data_size > true_file_length - data_location) - data_size = true_file_length - data_location; - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - -/* ------------------------------------ Ensoniq Paris ------------------------------------- - * _paf -> Ensoniq Paris? (this info from libaudiofile) - * 0 paf (or fap) - * 4 version (0) - * 8 endianess (0 = big) - * 12 rate (unsigned int) - * 16 format (0: 16-bit linear, 24-bit linear) - * 20 channels - * 24 source (an encoded comment) - * 2048 data (24 bit files are compressed) - */ - -static int read_paf_header(const char *filename, int chan) -{ - int form; - bool little = false; - lseek(chan, 0, SEEK_SET); - if (read(chan, hdrbuf, 32) != 32) return(mus_error(MUS_HEADER_READ_FAILED, "%s PAF header truncated?", filename)); - data_format = MUS_UNKNOWN; - if (mus_char_to_bint((unsigned char *)(hdrbuf + 8))) little = true; - if (little) - { - srate = mus_char_to_ulint((unsigned char *)(hdrbuf + 12)); - form = mus_char_to_ulint((unsigned char *)(hdrbuf + 16)); - if (form == 0) data_format = MUS_LSHORT; - if (form == 2) data_format = MUS_BYTE; - chans = mus_char_to_ulint((unsigned char *)(hdrbuf + 20)); - } - else - { - srate = mus_char_to_ubint((unsigned char *)(hdrbuf + 12)); - form = mus_char_to_ubint((unsigned char *)(hdrbuf + 16)); - if (form == 0) data_format = MUS_BSHORT; - if (form == 2) data_format = MUS_BYTE; - chans = mus_char_to_ubint((unsigned char *)(hdrbuf + 20)); - } - data_location = 2048; - true_file_length = SEEK_FILE_LENGTH(chan); - if (true_file_length < data_location) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location " OFF_TD " > file length: " OFF_TD, filename, data_location, true_file_length)); - if (data_format != MUS_UNKNOWN) - data_size = mus_bytes_to_samples(data_format, true_file_length - 2048); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ Comdisco SPW ------------------------------------- - * info from AFsp libtsp/AF/nucleus/AFgetSWpar.c - * - * header is text as in NIST: - * - * $SIGNAL_FILE 9\n (12 chars) - * $USER_COMMENT - * <comment line(s)> - * $COMMON_INFO - * SPW Version = 3.10 - * System Type = <machine> (e.g. "sun4", "hp700") - * Sampling Frequency = <Sfreq> (e.g. "8000") - * Starting Time = 0 - * $DATA_INFO - * Number of points = <Nsamp> (e.g. "2000") - * Signal Type = <type> ("Double", "Float", "Fixed-point", "Integer", "Logical") - * Fixed Point Format = <16, 0, t> <16, 16, t> <8, 8, t> <8, 0, t> (optional) - * Complex Format = Real_Imag (optional) - * $DATA <data_type> ("ASCII", "BINARY") - * - * the fixed point <n, m, b> is decoded as n = number of bits total per sample, m = integer bits, b = t: signed, u: unsigned - * if $DATA ASCII, data is ascii text as in IEEE text files. - * There are other complications as well. We'll just hack up a stop-gap until someone complains. - */ - -static int read_comdisco_header(const char *filename, int chan) -{ - /* need to grab a line at a time, call strcmp over and over. This is very tedious. */ - char *line = NULL; - int i, j, k, m, n, curend, offset, len, type, d_size = 0; - bool happy = true, little, commenting; - k = 15; - line = (char *)CALLOC(256, sizeof(char)); - little = false; - offset = 0; - type = 0; - srate = 0; - curend = INITIAL_READ_SIZE; - commenting = false; - while (happy) - { - for (i = 0; i < 256; i++) - { - if (k == curend) - { - offset += curend; - if (read(chan, hdrbuf, HDRBUFSIZ) != HDRBUFSIZ) - { - FREE(line); - return(mus_error(MUS_HEADER_READ_FAILED, "%s comdisco header truncated?", filename)); - } - k = 0; - curend = HDRBUFSIZ; - } - if (hdrbuf[k] == '\n') - { - k++; - break; - } - line[i] = hdrbuf[k++]; - } - line[i] = '\0'; - if ((strcmp(line, "$DATA BINARY") == 0) || - (strcmp(line, "$DATA ASCII") == 0)) - { - happy = false; - data_location = offset + k; - } - if (strcmp(line, "$USER_COMMENT") == 0) - { - comment_start = offset + k; - commenting = true; - } - else - { - if (commenting) - { - if (line[0] == '$') - { - comment_end = offset + k - 2 - strlen(line); - commenting = false; - } - } - } - if (line[0] != '$') - { - char portion[32]; - char value[32]; - len = strlen(line); - for (j = 0; j < 8; j++) - portion[j] = line[j]; - portion[8] ='\0'; - for (j = 8; j < len; j++) - if (line[j] == '=') - break; - for (n = 0, m = j + 2; m < len; m++, n++) - value[n] = line[m]; - value[n] ='\0'; - if (strcmp(portion, "Sampling") == 0) sscanf(value, "%d", &srate); else - if (strcmp(portion, "Number o") == 0) sscanf(value, "%d", &d_size); else - if (strcmp(portion, "Signal T") == 0) {if (value[1] == 'o') type = 2; else if (value[1] == 'l') type = 1;} else - if (strcmp(portion, "Fixed Po") == 0) {if (value[1] == '8') type = 3;} - } - } - /* now clean up this mess */ - if (data_location == 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: no $DATA BINARY field?", filename)); - if (srate == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: srate == 0", filename)); - chans = 1; - if (d_size != 0) data_size = (off_t)d_size; - switch (type) - { - case 0: if (little) data_format = MUS_LSHORT; else data_format = MUS_BSHORT; break; - case 1: if (little) data_format = MUS_LFLOAT; else data_format = MUS_BFLOAT; break; - case 2: if (little) data_format = MUS_LDOUBLE; else data_format = MUS_BDOUBLE; break; - case 3: data_format = MUS_BYTE; break; - } - true_file_length = SEEK_FILE_LENGTH(chan); - if (data_size > mus_bytes_to_samples(data_format, true_file_length - data_location)) - data_size = mus_bytes_to_samples(data_format, true_file_length - data_location); - FREE(line); - return(MUS_NO_ERROR); -} - - -/* ------------------------------------ MS ASF ------------------------------------- - * - * asf format is described at http://www.microsoft.com/asf/specs.htm - * http://www.microsoft.com/asf/spec3/ASF0198ps.exe - * - * this header is completely insane - */ - -static int read_asf_header(const char *filename, int chan) -{ - /* a chunked data format, so not really acceptable here or elsewhere -- needs to be unchunked */ - int len, ilen = 0, i, j, bits = 0; - bool asf_huge = false, present; - /* apparently "huge" has some meaning in Windoze C */ - len = mus_char_to_lint((unsigned char *)(hdrbuf + 16)); /* actually 64 bits */ - i = (128+64) / 8; - srate = 0; - chans = 0; - while (i < len) - { - seek_and_read(chan, (unsigned char *)hdrbuf, i, HDRBUFSIZ); - if ((unsigned int)(hdrbuf[1]) == 0x29) - switch (hdrbuf[0]) - { - case 0xd0: - asf_huge = (hdrbuf[((128+64+128+64+64+64+64+32)/8)] & 2); - break; - case 0xd4: - present = ((hdrbuf[16+8+16+8+8+ 4+4+4+4+ 4+4] >> 3) & 0x3); - if (present) - j = 16+8+16+8+8+ 4+4+4+4+ 4+4+ 4+ (4+4+4) + 2; - else j = 16+8+16+8+8+ 4+4+4+4+ 4+4+ 4+ 2; - srate = mus_char_to_lint((unsigned char *)(hdrbuf + j+11+36)); - bits = mus_char_to_lint((unsigned char *)(hdrbuf + j+11+32)); - chans = mus_char_to_ulshort((unsigned char *)(hdrbuf + j+65)); - original_data_format = mus_char_to_lint((unsigned char *)(hdrbuf + j+11)); - break; - default: break; - } - ilen = mus_char_to_lint((unsigned char *)(hdrbuf + 16)); - if (ilen <= 0) break; - if ((chans > 0) && (srate > 0)) break; - i += ilen; - } - i = len; - seek_and_read(chan, (unsigned char *)hdrbuf, i, HDRBUFSIZ); - data_format = MUS_UNKNOWN; - if (((unsigned int)(hdrbuf[1]) == 0x29) && ((unsigned int)(hdrbuf[0]) == 0xd2)) - { - int a_huge = 2; - ilen = mus_char_to_lint((unsigned char *)(hdrbuf + 16)); - if (asf_huge) a_huge = 4; - data_location = i + 20 + a_huge + 2+4+3+1; - if (bits == 0) bits = 8; - data_format = wave_to_sndlib_format(original_data_format, bits, true); - } - else return(mus_error(MUS_HEADER_READ_FAILED, "%s: unknown data format", filename)); - data_size = ilen - data_location; - true_file_length = SEEK_FILE_LENGTH(chan); - if (data_size > true_file_length) - { - data_size = true_file_length - data_location; - if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = " OFF_TD "?", filename, data_size)); - } - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - - - -/* ------------------------------------ no header ------------------------------------- */ - -static int header_raw_srate = 44100; -static int header_raw_chans = 2; -static int header_raw_format = MUS_BSHORT; - -static int read_no_header(const char *filename, int chan) -{ - srate = header_raw_srate; - chans = header_raw_chans; - data_format = header_raw_format; - data_location = 0; - data_size = SEEK_FILE_LENGTH(chan); - true_file_length = data_size; - data_size = mus_bytes_to_samples(data_format, data_size); - return(MUS_NO_ERROR); -} - -void mus_header_set_raw_defaults(int sr, int chn, int frm) -{ - if (sr > 0) header_raw_srate = sr; - if (chn > 0) header_raw_chans = chn; - if (MUS_DATA_FORMAT_OK(frm)) header_raw_format = frm; -} - -void mus_header_raw_defaults(int *sr, int *chn, int *frm) -{ - (*sr) = header_raw_srate; - (*chn) = header_raw_chans; - (*frm) = header_raw_format; -} - - -/* ------------------------------------ all together now ------------------------------------ */ - -static int mus_header_read_1(const char *filename, int chan) -{ - /* returns 0 on success (at least to the extent that we can report the header type), -1 for error */ - int i, loc = 0, bytes; - bool happy; - header_type = MUS_UNSUPPORTED; - data_format = MUS_UNKNOWN; - comment_start = 0; - comment_end = 0; - data_size = 0; - data_location = 0; - if (loop_modes) - { - loop_modes[0] = 0; - loop_modes[1] = 0; - } - bytes = read(chan, hdrbuf, INITIAL_READ_SIZE); - /* if it's a 0 length file we need to get out */ - if (bytes < 0) - return(mus_error(MUS_HEADER_READ_FAILED, "%s: %s", filename, (errno) ? STRERROR(errno) : "bytes read < 0?")); - if (bytes == 0) - { - header_type = MUS_RAW; - srate = header_raw_srate; - chans = header_raw_chans; - data_format = header_raw_format; - data_location = 0; - true_file_length = 0; - return(MUS_NO_ERROR); - } - if (bytes < 4) - { - header_type = MUS_RAW; - return(read_no_header(filename, chan)); - } - if ((match_four_chars((unsigned char *)hdrbuf, I_DSND)) || - (match_four_chars((unsigned char *)hdrbuf, I_DECN))) - { - if (bytes < 24) - return(mus_error(MUS_HEADER_READ_FAILED, "%s NeXT header truncated? found only %d bytes", filename, bytes)); - header_type = MUS_NEXT; - return(read_next_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_FORM)) - { - /* next 4 bytes are apparently the file size or something equally useless */ - if (bytes < 12) - return(mus_error(MUS_HEADER_READ_FAILED, "%s AIFF header truncated? found only %d bytes", filename, bytes)); - if (match_four_chars((unsigned char *)(hdrbuf + 8), I_AIFF)) - { - header_type = MUS_AIFF; - return(read_aiff_header(filename, chan, 0)); - } - if (match_four_chars((unsigned char *)(hdrbuf + 8), I_AIFC)) - { - header_type = MUS_AIFC; - return(read_aiff_header(filename, chan, 0)); - } - if (match_four_chars((unsigned char *)(hdrbuf + 8), I_8SVX)) - { - header_type = MUS_SVX; - return(read_8svx_header(filename, chan, true)); - } - if (match_four_chars((unsigned char *)(hdrbuf + 8), I_16SV)) - { - header_type = MUS_SVX; - return(read_8svx_header(filename, chan, false)); - } - if (match_four_chars((unsigned char *)(hdrbuf + 8), I_MAUD)) - { - header_type = MUS_MAUD; - return(read_maud_header(filename, chan)); - } - /* apparently SAMP here -> sampled audio data (?) */ - - if (match_four_chars((unsigned char *)(hdrbuf + 4), I_DS16)) - { - header_type = MUS_CSL; - return(read_csl_header(filename, chan)); - } - return(mus_error(MUS_HEADER_READ_FAILED, "%s: unrecognized \"FORM\" (i.e. AIFF) header", filename)); - } - if ((match_four_chars((unsigned char *)hdrbuf, I_RIFF)) || - (match_four_chars((unsigned char *)hdrbuf, I_RIFX))) - { - if (bytes < 12) - return(mus_error(MUS_HEADER_READ_FAILED, "%s RIFF header truncated? found only %d bytes", filename, bytes)); - if (match_four_chars((unsigned char *)(hdrbuf + 8), I_WAVE)) - { - header_type = MUS_RIFF; - return(read_riff_header(filename, chan)); - } - if (match_four_chars((unsigned char *)(hdrbuf + 8), I_sfbk)) - { - header_type = MUS_SOUNDFONT; - return(read_soundfont_header(filename, chan)); - } - if (match_four_chars((unsigned char *)(hdrbuf + 8), I_AVI_)) - { - header_type = MUS_AVI; - return(read_avi_header(filename, chan)); - } - return(mus_error(MUS_HEADER_READ_FAILED, "%s: unrecognized \"RIFF\" (i.e. 'wave') header", filename)); - } - if ((equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_VAX)) || - (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_SUN)) || - (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_MIPS)) || - (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_NEXT))) - { - if (bytes < 24) - return(mus_error(MUS_HEADER_READ_FAILED, "%s IRCAM header truncated? found only %d bytes", filename, bytes)); - header_type = MUS_IRCAM; - return(read_ircam_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_NIST)) - { - header_type = MUS_NIST; - return(read_nist_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_SOUN)) - { - if ((match_four_chars((unsigned char *)(hdrbuf + 4), I_D_SA)) && - (match_four_chars((unsigned char *)(hdrbuf + 8), I_MPLE))) - { - header_type = MUS_SMP; - return(read_smp_header(filename, chan)); - } - else - { - header_type = MUS_SNDT; - return(read_sndt_header(filename, chan)); - } - } - if ((match_four_chars((unsigned char *)hdrbuf, I_VOC0)) && - (match_four_chars((unsigned char *)(hdrbuf + 4), I_VOC1))) - { - if (bytes < 24) - return(mus_error(MUS_HEADER_READ_FAILED, "%s VOC header truncated? found only %d bytes", filename, bytes)); - header_type = MUS_VOC; - return(read_voc_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_AVR_)) - { - header_type = MUS_AVR; - return(read_avr_header(filename, chan)); - } - if (mus_char_to_bshort((unsigned char *)hdrbuf) == 1336) - { - header_type = MUS_SD1; - return(read_sd1_header(filename, chan)); - } - if ((match_four_chars((unsigned char *)hdrbuf, I_ALaw)) && - (match_four_chars((unsigned char *)(hdrbuf + 4), I_Soun))) - { - header_type = MUS_PSION; - return(read_psion_header(filename, chan)); - } - if ((match_four_chars((unsigned char *)hdrbuf, I_GF1P)) && - (match_four_chars((unsigned char *)(hdrbuf + 4), I_ATCH))) - { - header_type = MUS_GRAVIS; - return(read_gravis_header(filename, chan)); - } - if ((match_four_chars((unsigned char *)hdrbuf, I_DSIG)) && - (match_four_chars((unsigned char *)(hdrbuf + 4), I_NAL_))) - { - header_type = MUS_COMDISCO; - return(read_comdisco_header(filename, chan)); - } - if ((match_four_chars((unsigned char *)hdrbuf, I_GOLD)) && - (match_four_chars((unsigned char *)(hdrbuf + 4), I__WAV))) - { - header_type = MUS_GOLDWAVE; - return(read_goldwave_header(filename, chan)); - } - if ((match_four_chars((unsigned char *)hdrbuf, I_Diam)) && - (match_four_chars((unsigned char *)(hdrbuf + 4), I_ondW))) - { - header_type = MUS_DIAMONDWARE; - return(read_diamondware_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_SRFS)) - { - header_type = MUS_SRFS; - return(read_srfs_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_CSRE)) - { - header_type = MUS_ADF; - return(read_adf_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_fLaC)) - { - header_type = MUS_FLAC; - return(MUS_NO_ERROR); - } - if (match_four_chars((unsigned char *)hdrbuf, I_OggS)) - { - if ((hdrbuf[29] == 'v') && (hdrbuf[30] == 'o') && (hdrbuf[31] == 'r')) - header_type = MUS_OGG; - else - { - if ((hdrbuf[28] == 'S') && (hdrbuf[29] == 'p') && (hdrbuf[30] == 'e')) - header_type = MUS_SPEEX; - } - return(MUS_NO_ERROR); - } - if ((match_four_chars((unsigned char *)hdrbuf, I_file)) && - (match_four_chars((unsigned char *)(hdrbuf + 4), I__sam))) - { - header_type = MUS_FILE_SAMP; - return(read_file_samp_header(filename, chan)); - } - if ((hdrbuf[0] == 0xf0) && (hdrbuf[1] == 0x7e) && (hdrbuf[3] == 0x01)) - { - header_type = MUS_MIDI_SAMPLE_DUMP; - chans = 1; - srate = (int)(1.0e9 / (float)((hdrbuf[7] + (hdrbuf[8] << 7) + (hdrbuf[9] << 14)))); - data_size = (hdrbuf[10] + (hdrbuf[11] << 7) + (hdrbuf[12] << 14)); - /* since this file type has embedded blocks, we have to translate it elsewhere */ - return(MUS_NO_ERROR); - } - /* no recognized magic number at start -- poke around in possible header for other types */ - /* ESPS is either 0x00006a1a or 0x1a6a0000 at byte 16 */ - if (equal_big_or_little_endian((unsigned char *)(hdrbuf + 16), 0x00006a1a)) - { - header_type = MUS_ESPS; - return(read_esps_header(filename, chan)); - } - lseek(chan, 0, SEEK_SET); - CHK_READ(chan, hdrbuf, 256); - if ((hdrbuf[252] == 64) && (hdrbuf[253] == 195)) /* #o100 and #o303 */ - { - header_type = MUS_SPPACK; - return(read_sppack_header(filename, chan)); - } - if ((match_four_chars((unsigned char *)(hdrbuf + 65), I_FSSD)) && - (match_four_chars((unsigned char *)(hdrbuf + 128), I_HCOM))) - { - header_type = MUS_HCOM; - return(MUS_NO_ERROR); - } - happy = false; - for (i = 0; i < NINRS; i++) - { - if (equal_big_or_little_endian((unsigned char *)hdrbuf, I_INRS[i])) - { - happy = true; - loc = inrs_srates[i]; - } - } - if (happy) - { - header_type = MUS_INRS; - return(read_inrs_header(filename, chan, loc)); - } - if (mus_char_to_ubint((unsigned char *)hdrbuf) == 0xAAAAAAAA) - { - header_type = MUS_MUS10; - return(MUS_NO_ERROR); - } - if ((match_four_chars((unsigned char *)hdrbuf, I_SPIB)) || - (match_four_chars((unsigned char *)hdrbuf, I_S___))) - { - header_type = MUS_IEEE; - return(MUS_NO_ERROR); - } - if (match_four_chars((unsigned char *)hdrbuf, I_riff)) - { - header_type = MUS_SOUNDFORGE; - return(read_soundforge_header(filename, chan)); - } - if ((match_four_chars((unsigned char *)hdrbuf, I_PVF1)) || - (match_four_chars((unsigned char *)hdrbuf, I_PVF2))) - { - header_type = MUS_PVF; - return(read_pvf_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_MThd)) - { - header_type = MUS_MIDI; - return(MUS_ERROR); - } - if (match_four_chars((unsigned char *)hdrbuf, I_SND_)) - { - header_type = MUS_SBSTUDIOII; - return(read_sbstudio_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_FSMt)) - { - header_type = MUS_FARANDOLE; - return(read_farandole_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_SDXc)) - { - header_type = MUS_SAMPLE_DUMP; - return(read_sample_dump_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_DDSF)) - { - header_type = MUS_DELUSION; - return(read_delusion_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_LM89)) - { - header_type = MUS_YAMAHA_TX16W; - return(read_tx16w_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_SY85)) - { - header_type = MUS_YAMAHA_SY85; - return(read_sy85_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_SY80)) - { - header_type = MUS_YAMAHA_SY99; - return(read_sy85_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_PRAM)) - { - header_type = MUS_KURZWEIL_2000; - return(read_kurzweil_2000_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_SMP1)) - { - header_type = MUS_KORG; - return(read_korg_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_Maui)) - { - header_type = MUS_MAUI; - return(read_maui_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_IMPS)) - { - header_type = MUS_IMPULSETRACKER; - return(read_impulsetracker_header(filename, chan)); - } - if (match_four_chars((unsigned char *)(hdrbuf + 35), I_UWFD)) - { - header_type = MUS_ULTRATRACKER; - return(read_ultratracker_header(filename, chan)); - } - if (match_four_chars((unsigned char *)(hdrbuf + 76), I_SCRS)) - { - header_type = MUS_DIGIPLAYER; - return(read_digiplayer_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_covox)) - { - header_type = MUS_COVOX; - return(read_covox_header(filename, chan)); - } - if ((match_four_chars((unsigned char *)hdrbuf, I__PAF)) || - (match_four_chars((unsigned char *)hdrbuf, I_FAP_))) - { - header_type = MUS_PAF; - return(read_paf_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_TWIN)) - { - header_type = MUS_TWINVQ; - return(read_twinvq_header(filename, chan)); - } -#if MUS_LITTLE_ENDIAN - if (mus_char_to_uninterpreted_int((unsigned char *)hdrbuf) == 0x01000800) -#else - if (mus_char_to_uninterpreted_int((unsigned char *)hdrbuf) == 0x00080001) -#endif - { - header_type = MUS_ADC; - return(read_adc_header(filename, chan)); - } - - if ((match_four_chars((unsigned char *)hdrbuf, I_ones)) && - (match_four_chars((unsigned char *)(hdrbuf + 12), I_FORM))) - { - /* possibly an OMF file with an embedded AIFF data file -- this is just a guess... */ - header_type = MUS_OMF; - return(read_aiff_header(filename, chan, 12)); - /* another (apparently) along these lines is TOC */ - } - - if ((match_four_chars((unsigned char *)hdrbuf, I_zeros)) && - (match_four_chars((unsigned char *)(hdrbuf + 4), I_mdat))) - { - /* possibly quicktime?? */ - header_type = MUS_QUICKTIME; - return(read_qt_header(filename, chan)); - } - if ((hdrbuf[0] == 1) && (hdrbuf[1] == 4)) /* name follows --check? */ - { - header_type = MUS_AKAI4; - return(read_akai4_header(filename, chan)); - } -#if 0 - if ((hdrbuf[0] == 3) && (hdrbuf[16] == 128)) - { - header_type = MUS_AKAI4; - return(read_akai3_header(filename, chan)); - } -#endif - if ((match_four_chars((unsigned char *)hdrbuf, I_asf0)) && - (match_four_chars((unsigned char *)(hdrbuf + 4), I_asf1)) && - (match_four_chars((unsigned char *)(hdrbuf + 8), I_asf2)) && - (match_four_chars((unsigned char *)(hdrbuf + 12), I_asf3))) - { - header_type = MUS_ASF; - return(read_asf_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_SDIF)) - { - header_type = MUS_SDIF; - return(read_sdif_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_NVF_)) - { - header_type = MUS_NVF; - return(read_nvf_header(filename, chan)); - } - if (match_four_chars((unsigned char *)hdrbuf, I_ajkg)) - { - header_type = MUS_SHORTEN; - return(MUS_NO_ERROR); - } - if (match_four_chars((unsigned char *)hdrbuf, I_TTA1)) - { - header_type = MUS_TTA; - return(MUS_NO_ERROR); - } - if (match_four_chars((unsigned char *)hdrbuf, I_wvpk)) - { - header_type = MUS_WAVPACK; - return(MUS_NO_ERROR); - } - - header_type = MUS_RAW; - return(read_no_header(filename, chan)); -} - -static int local_error_type = MUS_NO_ERROR; -static char *local_error_msg = NULL; -static mus_error_handler_t *old_error_handler; - -static void local_mus_error(int type, char *msg) -{ - local_error_type = type; - if (local_error_msg) - free(local_error_msg); - if (msg) - local_error_msg = strdup(msg); - else local_error_msg = NULL; -} - -int mus_header_read(const char *name) -{ - int chan, err = 0; - chan = mus_file_open_read(name); - if (chan == -1) - return(mus_error(MUS_CANT_OPEN_FILE, "can't open %s: %s", name, STRERROR(errno))); - old_error_handler = mus_error_set_handler(local_mus_error); - err = mus_header_read_1(name, chan); - mus_error_set_handler(old_error_handler); - CLOSE(chan, name); - if (err != MUS_NO_ERROR) - return(mus_error(local_error_type, local_error_msg)); /* pass error info on up the chain now that we've cleaned up the open file descriptor */ - return(err); -} - -static mus_header_write_hook_t *mus_header_write_hook = NULL; - -mus_header_write_hook_t *mus_header_write_set_hook(mus_header_write_hook_t *new_hook) -{ - mus_header_write_hook_t *old_hook; - old_hook = mus_header_write_hook; - mus_header_write_hook = new_hook; - return(old_hook); -} - -int mus_header_write(const char *name, int type, int in_srate, int in_chans, off_t loc, off_t size_in_samples, int format, const char *comment, int len) -{ - /* the "loc" arg is a mistake -- just always set it to 0 */ - int chan, err = MUS_NO_ERROR; - off_t siz; - chan = mus_file_create(name); - if (chan == -1) - return(mus_error(MUS_CANT_OPEN_FILE, "can't write %s: %s", name, STRERROR(errno))); - if (mus_header_write_hook) - (*mus_header_write_hook)(name); - siz = mus_samples_to_bytes(format, size_in_samples); - /* no mus_error calls within any of the write functions */ - switch (type) - { - case MUS_NEXT: err = mus_header_write_next_header(chan, in_srate, in_chans, loc, siz, format, comment, len); break; - case MUS_AIFC: err = write_aif_header(chan, in_srate, in_chans, siz, format, comment, len, true); break; - case MUS_AIFF: err = write_aif_header(chan, in_srate, in_chans, siz, format, comment, len, false); break; - case MUS_RIFF: err = write_riff_header(chan, in_srate, in_chans, siz, format, comment, len); break; - case MUS_IRCAM: err = write_ircam_header(chan, in_srate, in_chans, format, comment, len); break; - case MUS_NIST: err = write_nist_header(chan, in_srate, in_chans, siz, format); break; - case MUS_RAW: - data_location = 0; - data_size = mus_bytes_to_samples(format, siz); - srate = in_srate; - chans = in_chans; - header_type = MUS_RAW; - data_format = format; - break; - default: - CLOSE(chan, name); - return(mus_error(MUS_UNSUPPORTED_HEADER_TYPE, "can't write %s header for %s", mus_header_type_name(type), name)); - break; - } - CLOSE(chan, name); - return(err); -} - -int mus_header_change_data_size(const char *filename, int type, off_t size) /* in bytes */ -{ - /* the read header at sample update (sound-close) time could be avoided if the - * ssnd_location (etc) were saved and passed in -- perhaps an added optimized - * header change data size? Means saving the relevant data, and exporting it - * from headers.c. Can we guarantee consistency here? - */ - int chan, err = MUS_NO_ERROR; - switch (type) - { - case MUS_AIFF: - case MUS_AIFC: - case MUS_NIST: - case MUS_RIFF: - err = mus_header_read(filename); - break; - default: - break; - } - if (err == MUS_ERROR) return(err); - chan = mus_file_reopen_write(filename); - if (chan == -1) return(mus_error(MUS_HEADER_WRITE_FAILED, "%s: %s", filename, STRERROR(errno))); - switch (type) - { - case MUS_NEXT: - lseek(chan, 8L, SEEK_SET); - mus_bint_to_char((unsigned char *)(hdrbuf + 0), (int)size); - CHK_WRITE(chan, hdrbuf, 4); - break; - case MUS_AIFC: - case MUS_AIFF: - /* we apparently have to make sure the form size and the data size are correct - * assumed here that we'll only be updating our own AIFF files - * There are 3 such locations -- the 2nd word of the file which is the overall form size, - * the frames variable in the COMM chunk, and the chunk-size variable in the SSND chunk - * an unexpected hassle for CLM is that we can open/close the output file many times if running mix, - * so we have to update the various size fields taking into account the old size - */ - - /* read sets current update_form_size, data_size, data_format, update_frames_location, update_ssnd_location */ - - lseek(chan, 4L, SEEK_SET); - mus_bint_to_char((unsigned char *)hdrbuf, (int)size + update_form_size - mus_samples_to_bytes(data_format, data_size)); - /* cancel old data_size from previous possible write */ - CHK_WRITE(chan, hdrbuf, 4); - lseek(chan, update_frames_location, SEEK_SET); - mus_bint_to_char((unsigned char *)hdrbuf, (int)size / (chans * mus_bytes_per_sample(data_format))); - CHK_WRITE(chan, hdrbuf, 4); - lseek(chan, update_ssnd_location, SEEK_SET); - mus_bint_to_char((unsigned char *)hdrbuf, (int)size + 8); - CHK_WRITE(chan, hdrbuf, 4); - break; - case MUS_RIFF: - - /* read sets current update_form_size, data_format, data_size, update_ssnd_location */ - - lseek(chan, 4L, SEEK_SET); - mus_lint_to_char((unsigned char *)hdrbuf, (int)size + update_form_size - mus_samples_to_bytes(data_format, data_size)); - CHK_WRITE(chan, hdrbuf, 4); - lseek(chan, update_ssnd_location, SEEK_SET); - mus_lint_to_char((unsigned char *)hdrbuf, (int)size); - CHK_WRITE(chan, hdrbuf, 4); - break; - case MUS_IRCAM: - case MUS_RAW: - /* size is implicit in file size */ - break; - case MUS_NIST: - - /* read sets current srate, chans, data_format */ - - lseek(chan, 0L, SEEK_SET); - write_nist_header(chan, mus_header_srate(), mus_header_chans(), size, mus_header_format()); - break; - default: - CLOSE(chan, filename); - return(mus_error(MUS_UNSUPPORTED_HEADER_TYPE, "mus_header_change_data_size: can't update %s headers", mus_header_type_name(type))); - break; - } - CLOSE(chan, filename); - return(err); -} - -int mus_header_change_chans(const char *filename, int type, int new_chans) -{ - int err = MUS_NO_ERROR, fd; - off_t new_frames; - switch (type) - { - case MUS_AIFF: - case MUS_AIFC: - case MUS_NIST: - case MUS_RIFF: - err = mus_header_read(filename); - break; - default: - break; - } - if (err == MUS_ERROR) return(err); - fd = mus_file_reopen_write(filename); - if (fd == -1) - return(mus_error(MUS_CANT_OPEN_FILE, "mus_header_change_chans for %s failed: %s", filename, STRERROR(errno))); - switch (type) - { - case MUS_NEXT: - lseek(fd, 20L, SEEK_SET); - mus_bint_to_char((unsigned char *)hdrbuf, new_chans); - CHK_WRITE(fd, hdrbuf, 4); - break; - case MUS_IRCAM: - lseek(fd, 8L, SEEK_SET); - if (little_endian) - mus_lint_to_char((unsigned char *)hdrbuf, new_chans); - else mus_bint_to_char((unsigned char *)hdrbuf, new_chans); - CHK_WRITE(fd, hdrbuf, 4); - break; - case MUS_NIST: - lseek(fd, 0L, SEEK_SET); - write_nist_header(fd, srate, new_chans, mus_bytes_per_sample(data_format) * data_size, data_format); - /* header size is always 1024, so this is safe */ - break; - case MUS_AIFF: case MUS_AIFC: - lseek(fd, update_frames_location - 2, SEEK_SET); - new_frames = data_size / new_chans; - mus_bshort_to_char((unsigned char *)hdrbuf, new_chans); - mus_bint_to_char((unsigned char *)(hdrbuf + 2), new_frames); - CHK_WRITE(fd, hdrbuf, 6); - break; - case MUS_RIFF: - lseek(fd, update_frames_location - 2, SEEK_SET); - if (little_endian) - mus_lshort_to_char((unsigned char *)hdrbuf, new_chans); - else mus_bshort_to_char((unsigned char *)hdrbuf, new_chans); - CHK_WRITE(fd, hdrbuf, 2); - break; - } - CLOSE(fd, filename); - return(err); -} - -int mus_header_change_srate(const char *filename, int type, int new_srate) -{ - int err = MUS_NO_ERROR, fd; - switch (type) - { - case MUS_AIFF: - case MUS_AIFC: - case MUS_NIST: - case MUS_RIFF: - err = mus_header_read(filename); - break; - default: - break; - } - if (err == MUS_ERROR) return(err); - fd = mus_file_reopen_write(filename); - if (fd == -1) - return(mus_error(MUS_CANT_OPEN_FILE, "mus_header_change_srate for %s failed: %s", filename, STRERROR(errno))); - switch (type) - { - case MUS_NEXT: - lseek(fd, 16L, SEEK_SET); - mus_bint_to_char((unsigned char *)hdrbuf, new_srate); - CHK_WRITE(fd, hdrbuf, 4); - break; - case MUS_IRCAM: - lseek(fd, 4L, SEEK_SET); - if (little_endian) - mus_lfloat_to_char((unsigned char *)hdrbuf, (float)new_srate); - else mus_bfloat_to_char((unsigned char *)hdrbuf, (float)new_srate); - CHK_WRITE(fd, hdrbuf, 4); - break; - case MUS_NIST: - lseek(fd, 0L, SEEK_SET); - write_nist_header(fd, new_srate, chans, mus_bytes_per_sample(data_format) * data_size, data_format); - break; - case MUS_AIFF: - case MUS_AIFC: - lseek(fd, update_frames_location + 6, SEEK_SET); - double_to_ieee_80((double)new_srate, (unsigned char *)hdrbuf); - CHK_WRITE(fd, hdrbuf, 10); - break; - case MUS_RIFF: - lseek(fd, update_frames_location, SEEK_SET); - if (little_endian) - mus_lint_to_char((unsigned char *)hdrbuf, new_srate); - else mus_bint_to_char((unsigned char *)hdrbuf, new_srate); - CHK_WRITE(fd, hdrbuf, 4); - break; - } - CLOSE(fd, filename); - return(err); -} - -int mus_header_change_type(const char *filename, int new_type, int new_format) -{ - int err = MUS_NO_ERROR; - /* open temp, write header, copy data, replace original with temp */ - err = mus_header_read(filename); - if (err == MUS_NO_ERROR) - { - if (header_type != new_type) - { - int ofd, ifd, nbytes; - off_t loc, len = 0; - char *buf = NULL; - char *new_file, *comment = NULL; - new_file = (char *)CALLOC(strlen(filename) + 5, sizeof(char)); - sprintf(new_file, "%s.tmp", filename); - loc = mus_header_data_location(); - if (new_type != MUS_RAW) - { - if (comment_end > comment_start) - { - len = comment_end - comment_start + 1; - comment = (char *)CALLOC(len + 1, sizeof(char)); - ifd = mus_file_open_read(filename); - lseek(ifd, comment_start, SEEK_SET); - CHK_READ(ifd, (unsigned char *)comment, len); - CLOSE(ifd, filename); - } - data_size = data_size * mus_bytes_per_sample(data_format) / mus_bytes_per_sample(new_format); - mus_header_write(new_file, new_type, srate, chans, loc, data_size, new_format, comment, len); - } - else mus_file_create(new_file); - ifd = mus_file_open_read(filename); - lseek(ifd, loc, SEEK_SET); - ofd = mus_file_reopen_write(new_file); - lseek(ofd, 0L, SEEK_END); - buf = (char *)CALLOC(8192, sizeof(char)); - while ((nbytes = read(ifd, buf, 8192))) CHK_WRITE(ofd, buf, nbytes); - CLOSE(ifd, filename); - CLOSE(ofd, new_file); - FREE(buf); - if (comment) FREE(comment); - rename(new_file, filename); - FREE(new_file); - } - } - return(err); -} - -int mus_header_change_format(const char *filename, int type, int new_format) -{ - int err = MUS_NO_ERROR, fd; - off_t old_bytes; - switch (type) - { - case MUS_AIFF: - case MUS_AIFC: - case MUS_NIST: - case MUS_RIFF: - err = mus_header_read(filename); - break; - default: - break; - } - if (err == MUS_ERROR) return(err); - fd = mus_file_reopen_write(filename); - if (fd == -1) - return(mus_error(MUS_CANT_OPEN_FILE, "mus_header_change_format for %s failed: %s", filename, STRERROR(errno))); - switch (type) - { - case MUS_NEXT: - lseek(fd, 12L, SEEK_SET); - mus_bint_to_char((unsigned char *)hdrbuf, sndlib_format_to_next(new_format)); - CHK_WRITE(fd, hdrbuf, 4); - break; - case MUS_IRCAM: - lseek(fd, 12L, SEEK_SET); - mus_bint_to_char((unsigned char *)hdrbuf, sndlib_format_to_ircam(new_format)); - CHK_WRITE(fd, hdrbuf, 4); - break; - case MUS_NIST: - lseek(fd, 0L, SEEK_SET); - write_nist_header(fd, srate, chans, mus_bytes_per_sample(data_format) * data_size, new_format); - break; - case MUS_AIFF: - case MUS_AIFC: - old_bytes = data_size * mus_bytes_per_sample(data_format); - lseek(fd, update_frames_location, SEEK_SET); - mus_bint_to_char((unsigned char *)hdrbuf, old_bytes / (chans * mus_bytes_per_sample(new_format))); - mus_bshort_to_char((unsigned char *)(hdrbuf + 4), sndlib_format_to_aiff_bits(new_format)); - CHK_WRITE(fd, hdrbuf, 6); - if (header_type == MUS_AIFC) - { - const char *str; - str = sndlib_format_to_aifc_name(new_format); - lseek(fd, update_frames_location + 16, SEEK_SET); - write_four_chars((unsigned char *)(hdrbuf + 0), (const unsigned char *)str); - (*(unsigned char *)(hdrbuf + 4)) = 4; /* final pad null not accounted-for */ - write_four_chars((unsigned char *)(hdrbuf + 5), (const unsigned char *)str); - (*(unsigned char *)(hdrbuf + 9)) = 0; - CHK_WRITE(fd, hdrbuf, 10); - } - break; - case MUS_RIFF: - lseek(fd, update_frames_location + 24, SEEK_SET); - if (little_endian) - mus_lshort_to_char((unsigned char *)hdrbuf, sndlib_format_to_aiff_bits(new_format)); - else mus_bshort_to_char((unsigned char *)hdrbuf, sndlib_format_to_aiff_bits(new_format)); - CHK_WRITE(fd, hdrbuf, 2); - lseek(fd, update_frames_location + 10, SEEK_SET); - switch (new_format) - { - case MUS_MULAW: - new_format = 7; - break; - case MUS_ALAW: - new_format = 6; - break; - case MUS_UBYTE: - case MUS_LSHORT: case MUS_L24INT: case MUS_LINT: - case MUS_BSHORT: case MUS_B24INT: case MUS_BINT: - new_format = 1; - break; - case MUS_LFLOAT: case MUS_LDOUBLE: - case MUS_BFLOAT: case MUS_BDOUBLE: - new_format = 3; - break; - } - if (little_endian) - mus_lshort_to_char((unsigned char *)hdrbuf, new_format); - else mus_bshort_to_char((unsigned char *)hdrbuf, new_format); - CHK_WRITE(fd, hdrbuf, 2); - break; - } - CLOSE(fd, filename); - return(err); -} - -int mus_header_change_location(const char *filename, int type, off_t new_location) -{ - /* only Next/Sun changeable in this regard */ - int err = MUS_NO_ERROR, fd; - fd = mus_file_reopen_write(filename); - if (fd == -1) - return(mus_error(MUS_CANT_OPEN_FILE, "mus_header_change_location for %s failed: %s", filename, STRERROR(errno))); - if (type == MUS_NEXT) - { - lseek(fd, 4L, SEEK_SET); - mus_bint_to_char((unsigned char *)hdrbuf, new_location); - CHK_WRITE(fd, hdrbuf, 4); - } - CLOSE(fd, filename); - return(err); -} - -int mus_header_change_comment(const char *filename, int type, char *new_comment) -{ - int err = MUS_NO_ERROR, fd, len = 0; - bool need_ripple = false; - err = mus_header_read(filename); - if (err == MUS_NO_ERROR) - { - switch (type) - { - case MUS_IRCAM: - fd = mus_file_reopen_write(filename); - lseek(fd, 16L, SEEK_SET); - if (new_comment) len = strlen(new_comment); - write_ircam_comment(fd, new_comment, len); - CLOSE(fd, filename); - break; - case MUS_NEXT: - fd = mus_file_reopen_write(filename); - lseek(fd, 24L, SEEK_SET); - if (new_comment == NULL) - write_next_comment(fd, new_comment, 0, data_location); /* erase old possibly */ - else - { - if ((comment_start != comment_end) && - ((int)(data_location - 24) >= (int)strlen(new_comment))) - write_next_comment(fd, new_comment, strlen(new_comment), data_location); /* there's room to overwrite old comment */ - else need_ripple = true; - } - CLOSE(fd, filename); - break; - default: - need_ripple = true; - break; - } - if (need_ripple) - { - /* open temp, write header, copy data, replace original with temp */ - char *new_file; - int ofd, ifd; - off_t loc; - int nbytes; - char *buf = NULL; - new_file = (char *)CALLOC(strlen(filename) + 5, sizeof(char)); - sprintf(new_file, "%s.tmp", filename); - loc = mus_header_data_location(); - mus_header_write(new_file, header_type, srate, chans, loc, data_size, data_format, new_comment, (new_comment) ? strlen(new_comment) : 0); - ifd = mus_file_open_read(filename); - lseek(ifd, loc, SEEK_SET); - ofd = mus_file_reopen_write(new_file); - lseek(ofd, 0L, SEEK_END); - buf = (char *)CALLOC(8192, sizeof(char)); - while ((nbytes = read(ifd, buf, 8192))) CHK_WRITE(ofd, buf, nbytes); - CLOSE(ifd, filename); - CLOSE(ofd, new_file); - FREE(buf); - rename(new_file, filename); - FREE(new_file); - } - } - return(err); -} - -bool mus_header_writable(int type, int format) /* -2 to ignore format for this call */ -{ - switch (type) - { - case MUS_NEXT: - if (format == MUS_UNKNOWN) return(false); - return(true); - break; - case MUS_NIST: - if (format == -2) return(true); - switch (format) - { - case MUS_BYTE: case MUS_BSHORT: case MUS_B24INT: case MUS_BINT: - case MUS_LSHORT: case MUS_L24INT: case MUS_LINT: - return(true); break; - default: - return(false); break; - } - break; - case MUS_AIFC: - if (format == -2) return(true); - switch (format) - { - case MUS_BSHORT: case MUS_B24INT: case MUS_BINT: - case MUS_BYTE: case MUS_MULAW: case MUS_ALAW: - case MUS_BFLOAT: case MUS_BDOUBLE: case MUS_UBYTE: case MUS_UBSHORT: - case MUS_LSHORT: case MUS_L24INT: case MUS_LINT: - return(true); - break; - default: - return(false); - break; - } - break; - case MUS_AIFF: - if (format == -2) return(true); - switch (format) - { - case MUS_BSHORT: case MUS_B24INT: case MUS_BINT: case MUS_BYTE: - return(true); - break; - default: - return(false); - break; - } - break; - case MUS_RIFF: - if (format == -2) return(true); - switch (format) - { - case MUS_MULAW: case MUS_ALAW: case MUS_UBYTE: case MUS_LFLOAT: - case MUS_LSHORT: case MUS_L24INT: case MUS_LINT: case MUS_LDOUBLE: - return(true); - break; - default: - return(false); - break; - } - break; - case MUS_IRCAM: - if (format == -2) return(true); - switch (format) - { - case MUS_MULAW: case MUS_ALAW: case MUS_BSHORT: case MUS_BINT: case MUS_BFLOAT: - return(true); - break; - default: - return(false); - break; - } - break; - case MUS_RAW: - return(true); - break; - default: return(false); break; - } - return(false); -} - -static char aifc_format[5]; - -/* try to give some info on data formats that aren't supported by sndlib */ -const char *mus_header_original_format_name(int format, int type) -{ - switch (type) - { - case MUS_NEXT: - switch (format) - { - case 0: return("unspecified"); break; case 8: return("indirect"); break; case 9: return("nested"); break; - case 10: return("dsp_core"); break; case 11: return("dsp_data_8"); break; case 12: return("dsp_data_16"); break; - case 13: return("dsp_data_24"); break; case 14: return("dsp_data_32"); break; case 16: return("display"); break; - case 17: return("mulaw_squelch"); break; case 18: return("emphasized"); break; case 19: return("compressed"); break; - case 20: return("compressed_emphasized"); break; case 21: return("dsp_commands"); break; case 22: return("dsp_commands_samples"); break; - case 23: return("adpcm_g721"); break; case 24: return("adpcm_g722"); break; case 25: return("adpcm_g723"); break; - case 26: return("adpcm_g723_5"); break; case 28: return("aes"); break; case 29: return("delat_mulaw_8"); break; - } - break; - case MUS_AIFC: - aifc_format[4] = 0; -#if MUS_LITTLE_ENDIAN - sprintf(aifc_format, "%c%c%c%c", format & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff, (format >> 24) & 0xff); -#else - sprintf(aifc_format, "%c%c%c%c", (format >> 24) & 0xff, (format >> 16) & 0xff, (format >> 8) & 0xff, format & 0xff); -#endif - return(aifc_format); - break; - case MUS_PVF: - if (type_specifier == mus_char_to_uninterpreted_int((unsigned const char *)I_PVF2)) - return("ascii text"); - break; - case MUS_RIFF: - switch (format) - { - case 2: return("ADPCM"); break; case 4: return("VSELP"); break; case 5: return("IBM_CVSD"); break; - case 0x10: return("OKI_ADPCM"); break; case 0x11: return("DVI_ADPCM"); break; case 0x12: return("MediaSpace_ADPCM"); break; - case 0x13: return("Sierra_ADPCM"); break; case 0x14: return("G723_ADPCM"); break; case 0x15: return("DIGISTD"); break; - case 0x16: return("DIGIFIX"); break; case 0x17: return("Dialogic ADPCM"); break; case 0x18: return("Mediavision ADPCM"); break; - case 0x19: return("HP cu codec"); break; case 0x20: return("Yamaha_ADPCM"); break; case 0x21: return("SONARC"); break; - case 0x22: return("DSPGroup_TrueSpeech"); break; case 0x23: return("EchoSC1"); break; case 0x24: return("AudioFile_AF36"); break; - case 0x25: return("APTX"); break; case 0x26: return("AudioFile_AF10"); break; case 0x27: return("prosody 1612"); break; - case 0x28: return("lrc"); break; case 0x30: return("Dolby_Ac2"); break; case 0x31: return("GSM610"); break; - case 0x32: return("MSN audio codec"); break; case 0x33: return("Antext_ADPCM"); break; case 0x34: return("Control_res_vqlpc"); break; - case 0x35: return("DIGIREAL"); break; case 0x36: return("DIGIADPCM"); break; case 0x37: return("Control_res_cr10"); break; - case 0x38: return("NMS_VBXADPCM"); break; case 0x39: return("oland rdac"); break; case 0x3a: return("echo sc3"); break; - case 0x3b: return("Rockwell adpcm"); break; case 0x3c: return("Rockwell digitalk codec"); break; case 0x3d: return("Xebec"); break; - case 0x40: return("G721_ADPCM"); break; case 0x41: return("G728 CELP"); break; case 0x42: return("MS G723"); break; - case 0x50: return("MPEG"); break; case 0x52: return("RT24"); break; case 0x53: return("PAC"); break; - case 0x55: return("Mpeg layer 3"); break; case 0x59: return("Lucent G723"); break; case 0x60: return("Cirrus"); break; - case 0x61: return("ESS Tech pcm"); break; case 0x62: return("voxware "); break; case 0x63: return("canopus atrac"); break; - case 0x64: return("G726"); break; case 0x65: return("G722"); break; case 0x66: return("DSAT"); break; - case 0x67: return("DSAT display"); break; case 0x69: return("voxware "); break; case 0x70: return("voxware ac8 "); break; - case 0x71: return("voxware ac10 "); break; case 0x72: return("voxware ac16"); break; case 0x73: return("voxware ac20"); break; - case 0x74: return("voxware rt24"); break; case 0x75: return("voxware rt29"); break; case 0x76: return("voxware rt29hw"); break; - case 0x77: return("voxware vr12 "); break; case 0x78: return("voxware vr18"); break; case 0x79: return("voxware tq40"); break; - case 0x80: return("softsound"); break; case 0x81: return("voxware tq60 "); break; case 0x82: return("MS RT24"); break; - case 0x83: return("G729A"); break; case 0x84: return("MVI_MVI2"); break; case 0x85: return("DF G726"); break; - case 0x86: return("DF GSM610"); break; case 0x88: return("isaudio"); break; case 0x89: return("onlive"); break; - case 0x91: return("sbc24"); break; case 0x92: return("dolby ac3 spdif"); break; case 0x97: return("zyxel adpcm"); break; - case 0x98: return("philips lpcbb"); break; case 0x99: return("packed"); break; case 0x100: return("rhetorex adpcm"); break; - case 0x101: return("Irat"); break; case 0x102: return("IBM_alaw?"); break; case 0x103: return("IBM_ADPCM?"); break; - case 0x111: return("vivo G723"); break; case 0x112: return("vivo siren"); break; case 0x123: return("digital g273"); break; - case 0x200: return("Creative_ADPCM"); break; case 0x202: return("Creative fastspeech 8"); break; - case 0x203: return("Creative fastspeech 10"); break; - case 0x220: return("quarterdeck"); break; case 0x300: return("FM_TOWNS_SND"); break; case 0x400: return("BTV digital"); break; - case 0x680: return("VME vmpcm"); break; case 0x1000: return("OLIGSM"); break; case 0x1001: return("OLIADPCM"); break; - case 0x1002: return("OLICELP"); break; case 0x1003: return("OLISBC"); break; case 0x1004: return("OLIOPR"); break; - case 0x1100: return("LH codec"); break; case 0x1400: return("Norris"); break; case 0x1401: return("isaudio"); break; - case 0x1500: return("Soundspace musicompression"); break; case 0x2000: return("DVM"); break; - } - break; - } - return("unknown"); /* NULL here isn't safe -- Sun segfaults */ -} - -bool mus_header_no_header(const char *filename) -{ - int chan, bytes; - bool ok = false; - chan = mus_file_open_read(filename); - if (chan == -1) - return(mus_error(MUS_CANT_OPEN_FILE, "mus_header: can't open %s: %s", filename, STRERROR(errno))); - bytes = read(chan, hdrbuf, INITIAL_READ_SIZE); - CLOSE(chan, filename); - if (bytes > 4) - ok = ((match_four_chars((unsigned char *)hdrbuf, I_DSND)) || - (match_four_chars((unsigned char *)hdrbuf, I_DECN)) || - (match_four_chars((unsigned char *)hdrbuf, I_FORM)) || - (match_four_chars((unsigned char *)hdrbuf, I_RIFF)) || - (match_four_chars((unsigned char *)hdrbuf, I_RIFX)) || - (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_VAX)) || - (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_SUN)) || - (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_MIPS)) || - (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_NEXT)) || - (match_four_chars((unsigned char *)hdrbuf, I_NIST)) || - (match_four_chars((unsigned char *)hdrbuf, I_SOUN)) || - (match_four_chars((unsigned char *)hdrbuf, I_VOC0)) || - (match_four_chars((unsigned char *)hdrbuf, I_AVR_)) || - (mus_char_to_bshort((unsigned char *)hdrbuf) == 1336) || - (match_four_chars((unsigned char *)hdrbuf, I_ALaw)) || - (match_four_chars((unsigned char *)hdrbuf, I_GF1P)) || - (match_four_chars((unsigned char *)hdrbuf, I_DSIG)) || - (match_four_chars((unsigned char *)hdrbuf, I_GOLD)) || - (match_four_chars((unsigned char *)hdrbuf, I_Diam)) || - (match_four_chars((unsigned char *)hdrbuf, I_SRFS)) || - (match_four_chars((unsigned char *)hdrbuf, I_CSRE)) || - (match_four_chars((unsigned char *)hdrbuf, I_file)) || - ((hdrbuf[0] == 0xf0) && (hdrbuf[1] == 0x7e) && (hdrbuf[3] == 0x01)) || - (equal_big_or_little_endian((unsigned char *)(hdrbuf + 16), 0x00006a1a)) || - (match_four_chars((unsigned char *)hdrbuf, I_SPIB)) || - (match_four_chars((unsigned char *)hdrbuf, I_S___)) || - (match_four_chars((unsigned char *)hdrbuf, I_riff)) || - (match_four_chars((unsigned char *)hdrbuf, I_PVF1)) || - (match_four_chars((unsigned char *)hdrbuf, I_PVF2)) || - (match_four_chars((unsigned char *)hdrbuf, I_MThd)) || - (match_four_chars((unsigned char *)hdrbuf, I_SND_)) || - (match_four_chars((unsigned char *)hdrbuf, I_FSMt)) || - (match_four_chars((unsigned char *)hdrbuf, I_DDSF)) || - (match_four_chars((unsigned char *)hdrbuf, I_LM89)) || - (match_four_chars((unsigned char *)hdrbuf, I_SY85)) || - (match_four_chars((unsigned char *)hdrbuf, I_SY80)) || - (match_four_chars((unsigned char *)hdrbuf, I_PRAM)) || - (match_four_chars((unsigned char *)(hdrbuf + 35), I_UWFD)) || - (match_four_chars((unsigned char *)(hdrbuf + 76), I_SCRS)) || - (match_four_chars((unsigned char *)hdrbuf, I_covox)) || - (match_four_chars((unsigned char *)hdrbuf, I__PAF)) || - (match_four_chars((unsigned char *)hdrbuf, I_FAP_)) || - (match_four_chars((unsigned char *)hdrbuf, I_TWIN)) || - (match_four_chars((unsigned char *)hdrbuf, I_IMPS)) || - (match_four_chars((unsigned char *)hdrbuf, I_SMP1)) || - (match_four_chars((unsigned char *)hdrbuf, I_Maui)) || - (match_four_chars((unsigned char *)hdrbuf, I_SDIF)) || - (match_four_chars((unsigned char *)hdrbuf, I_ajkg)) || - (match_four_chars((unsigned char *)hdrbuf, I_NVF_))); - return(!ok); -} - -void mus_header_set_aiff_loop_info(int *data) -{ - /* include modes */ - if (data) - { - loop_starts[0] = data[0]; - loop_ends[0] = data[1]; - loop_starts[1] = data[2]; - loop_ends[1] = data[3]; - base_note = data[4]; - base_detune = data[5]; - loop_modes[0] = data[6]; - loop_modes[1] = data[7]; - } - else - { - loop_modes[0] = 0; - loop_modes[1] = 0; - } -} |