diff options
Diffstat (limited to 'pjmedia/src/pjmedia-codec/speex/sb_celp.c')
| -rw-r--r-- | pjmedia/src/pjmedia-codec/speex/sb_celp.c | 1613 |
1 files changed, 1613 insertions, 0 deletions
diff --git a/pjmedia/src/pjmedia-codec/speex/sb_celp.c b/pjmedia/src/pjmedia-codec/speex/sb_celp.c new file mode 100644 index 00000000..5adf44df --- /dev/null +++ b/pjmedia/src/pjmedia-codec/speex/sb_celp.c @@ -0,0 +1,1613 @@ +/* Copyright (C) 2002 Jean-Marc Valin + File: sb_celp.c + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + - Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + - Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + - Neither the name of the Xiph.org Foundation nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR + CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <math.h> +#include "sb_celp.h" +#include "stdlib.h" +#include "filters.h" +#include "lpc.h" +#include "lsp.h" +#include "stack_alloc.h" +#include "cb_search.h" +#include "quant_lsp.h" +#include "vq.h" +#include "ltp.h" +#include "misc.h" + +/* Default size for the encoder and decoder stack (can be changed at compile time). + This does not apply when using variable-size arrays or alloca. */ +#ifndef SB_ENC_STACK +#define SB_ENC_STACK (10000*sizeof(spx_sig_t)) +#endif + +#ifndef SB_DEC_STACK +#define SB_DEC_STACK (6000*sizeof(spx_sig_t)) +#endif + + +#ifdef DISABLE_WIDEBAND +void *sb_encoder_init(const SpeexMode *m) +{ + speex_error("Wideband and Ultra-wideband are disabled"); + return NULL; +} +void sb_encoder_destroy(void *state) +{ + speex_error("Wideband and Ultra-wideband are disabled"); +} +int sb_encode(void *state, void *vin, SpeexBits *bits) +{ + speex_error("Wideband and Ultra-wideband are disabled"); + return -2; +} +void *sb_decoder_init(const SpeexMode *m) +{ + speex_error("Wideband and Ultra-wideband are disabled"); + return NULL; +} +void sb_decoder_destroy(void *state) +{ + speex_error("Wideband and Ultra-wideband are disabled"); +} +int sb_decode(void *state, SpeexBits *bits, void *vout) +{ + speex_error("Wideband and Ultra-wideband are disabled"); + return -2; +} +int sb_encoder_ctl(void *state, int request, void *ptr) +{ + speex_error("Wideband and Ultra-wideband are disabled"); + return -2; +} +int sb_decoder_ctl(void *state, int request, void *ptr) +{ + speex_error("Wideband and Ultra-wideband are disabled"); + return -2; +} +#else + + +#ifndef M_PI +#define M_PI 3.14159265358979323846 /* pi */ +#endif + +#define sqr(x) ((x)*(x)) + +#define SUBMODE(x) st->submodes[st->submodeID]->x + +#ifdef FIXED_POINT +static const spx_word16_t gc_quant_bound[16] = {125, 164, 215, 282, 370, 484, 635, 832, 1090, 1428, 1871, 2452, 3213, 4210, 5516, 7228}; +#define LSP_MARGIN 410 +#define LSP_DELTA1 6553 +#define LSP_DELTA2 1638 + +#else + +#define LSP_MARGIN .05 +#define LSP_DELTA1 .2 +#define LSP_DELTA2 .05 + +#endif + +#define QMF_ORDER 64 + +#ifdef FIXED_POINT +static const spx_word16_t h0[64] = {2, -7, -7, 18, 15, -39, -25, 75, 35, -130, -41, 212, 38, -327, -17, 483, -32, -689, 124, 956, -283, -1307, 543, 1780, -973, -2467, 1733, 3633, -3339, -6409, 9059, 30153, 30153, 9059, -6409, -3339, 3633, 1733, -2467, -973, 1780, 543, -1307, -283, 956, 124, -689, -32, 483, -17, -327, 38, 212, -41, -130, 35, 75, -25, -39, 15, 18, -7, -7, 2}; + +static const spx_word16_t h1[64] = {2, 7, -7, -18, 15, 39, -25, -75, 35, 130, -41, -212, 38, 327, -17, -483, -32, 689, 124, -956, -283, 1307, 543, -1780, -973, 2467, 1733, -3633, -3339, 6409, 9059, -30153, 30153, -9059, -6409, 3339, 3633, -1733, -2467, 973, 1780, -543, -1307, 283, 956, -124, -689, 32, 483, 17, -327, -38, 212, 41, -130, -35, 75, 25, -39, -15, 18, 7, -7, -2}; + + +#else +static const float h0[64] = { + 3.596189e-05, -0.0001123515, + -0.0001104587, 0.0002790277, + 0.0002298438, -0.0005953563, + -0.0003823631, 0.00113826, + 0.0005308539, -0.001986177, + -0.0006243724, 0.003235877, + 0.0005743159, -0.004989147, + -0.0002584767, 0.007367171, + -0.0004857935, -0.01050689, + 0.001894714, 0.01459396, + -0.004313674, -0.01994365, + 0.00828756, 0.02716055, + -0.01485397, -0.03764973, + 0.026447, 0.05543245, + -0.05095487, -0.09779096, + 0.1382363, 0.4600981, + 0.4600981, 0.1382363, + -0.09779096, -0.05095487, + 0.05543245, 0.026447, + -0.03764973, -0.01485397, + 0.02716055, 0.00828756, + -0.01994365, -0.004313674, + 0.01459396, 0.001894714, + -0.01050689, -0.0004857935, + 0.007367171, -0.0002584767, + -0.004989147, 0.0005743159, + 0.003235877, -0.0006243724, + -0.001986177, 0.0005308539, + 0.00113826, -0.0003823631, + -0.0005953563, 0.0002298438, + 0.0002790277, -0.0001104587, + -0.0001123515, 3.596189e-05 +}; + +static const float h1[64] = { + 3.596189e-05, 0.0001123515, + -0.0001104587, -0.0002790277, + 0.0002298438, 0.0005953563, + -0.0003823631, -0.00113826, + 0.0005308539, 0.001986177, + -0.0006243724, -0.003235877, + 0.0005743159, 0.004989147, + -0.0002584767, -0.007367171, + -0.0004857935, 0.01050689, + 0.001894714, -0.01459396, + -0.004313674, 0.01994365, + 0.00828756, -0.02716055, + -0.01485397, 0.03764973, + 0.026447, -0.05543245, + -0.05095487, 0.09779096, + 0.1382363, -0.4600981, + 0.4600981, -0.1382363, + -0.09779096, 0.05095487, + 0.05543245, -0.026447, + -0.03764973, 0.01485397, + 0.02716055, -0.00828756, + -0.01994365, 0.004313674, + 0.01459396, -0.001894714, + -0.01050689, 0.0004857935, + 0.007367171, 0.0002584767, + -0.004989147, -0.0005743159, + 0.003235877, 0.0006243724, + -0.001986177, -0.0005308539, + 0.00113826, 0.0003823631, + -0.0005953563, -0.0002298438, + 0.0002790277, 0.0001104587, + -0.0001123515, -3.596189e-05 +}; +#endif + +static void mix_and_saturate(spx_word32_t *x0, spx_word32_t *x1, spx_word16_t *out, int len) +{ + int i; + for (i=0;i<len;i++) + { + spx_word32_t tmp; +#ifdef FIXED_POINT + tmp=PSHR(x0[i]-x1[i],SIG_SHIFT-1); +#else + tmp=2*(x0[i]-x1[i]); +#endif + if (tmp>32767) + out[i] = 32767; + else if (tmp<-32767) + out[i] = -32767; + else + out[i] = tmp; + } +} + +void *sb_encoder_init(const SpeexMode *m) +{ + int i; + SBEncState *st; + const SpeexSBMode *mode; + + st = (SBEncState*)speex_alloc(sizeof(SBEncState)); + if (!st) + return NULL; +#if defined(VAR_ARRAYS) || defined (USE_ALLOCA) + st->stack = NULL; +#else + st->stack = (char*)speex_alloc_scratch(SB_ENC_STACK); +#endif + st->mode = m; + mode = (const SpeexSBMode*)m->mode; + + + st->st_low = speex_encoder_init(mode->nb_mode); + st->full_frame_size = 2*mode->frameSize; + st->frame_size = mode->frameSize; + st->subframeSize = mode->subframeSize; + st->nbSubframes = mode->frameSize/mode->subframeSize; + st->windowSize = st->frame_size*3/2; + st->lpcSize=mode->lpcSize; + st->bufSize=mode->bufSize; + + st->encode_submode = 1; + st->submodes=mode->submodes; + st->submodeSelect = st->submodeID=mode->defaultSubmode; + + i=9; + speex_encoder_ctl(st->st_low, SPEEX_SET_QUALITY, &i); + + st->lag_factor = mode->lag_factor; + st->lpc_floor = mode->lpc_floor; + st->gamma1=mode->gamma1; + st->gamma2=mode->gamma2; + st->first=1; + + st->x0d=speex_alloc((st->frame_size)*sizeof(spx_sig_t)); + st->x1d=speex_alloc((st->frame_size)*sizeof(spx_sig_t)); + st->high=speex_alloc((st->full_frame_size)*sizeof(spx_sig_t)); + st->y0=speex_alloc((st->full_frame_size)*sizeof(spx_sig_t)); + st->y1=speex_alloc((st->full_frame_size)*sizeof(spx_sig_t)); + + st->h0_mem=speex_alloc((QMF_ORDER)*sizeof(spx_word16_t)); + st->h1_mem=speex_alloc((QMF_ORDER)*sizeof(spx_word16_t)); + st->g0_mem=speex_alloc((QMF_ORDER)*sizeof(spx_word32_t)); + st->g1_mem=speex_alloc((QMF_ORDER)*sizeof(spx_word32_t)); + + st->excBuf=speex_alloc((st->bufSize)*sizeof(spx_sig_t)); + st->exc = st->excBuf + st->bufSize - st->windowSize; + + st->res=speex_alloc((st->frame_size)*sizeof(spx_sig_t)); + st->sw=speex_alloc((st->frame_size)*sizeof(spx_sig_t)); + st->target=speex_alloc((st->frame_size)*sizeof(spx_sig_t)); + /*Asymmetric "pseudo-Hamming" window*/ + { + int part1, part2; + part1 = st->subframeSize*7/2; + part2 = st->subframeSize*5/2; + st->window = speex_alloc((st->windowSize)*sizeof(spx_word16_t)); + for (i=0;i<part1;i++) + st->window[i]=(spx_word16_t)(SIG_SCALING*(.54-.46*cos(M_PI*i/part1))); + for (i=0;i<part2;i++) + st->window[part1+i]=(spx_word16_t)(SIG_SCALING*(.54+.46*cos(M_PI*i/part2))); + } + + st->lagWindow = speex_alloc((st->lpcSize+1)*sizeof(spx_word16_t)); + for (i=0;i<st->lpcSize+1;i++) + st->lagWindow[i]=16384*exp(-.5*sqr(2*M_PI*st->lag_factor*i)); + + st->autocorr = speex_alloc((st->lpcSize+1)*sizeof(spx_word16_t)); + st->lpc = speex_alloc(st->lpcSize*sizeof(spx_coef_t)); + st->bw_lpc1 = speex_alloc(st->lpcSize*sizeof(spx_coef_t)); + st->bw_lpc2 = speex_alloc(st->lpcSize*sizeof(spx_coef_t)); + st->lsp = speex_alloc(st->lpcSize*sizeof(spx_lsp_t)); + st->qlsp = speex_alloc(st->lpcSize*sizeof(spx_lsp_t)); + st->old_lsp = speex_alloc(st->lpcSize*sizeof(spx_lsp_t)); + st->old_qlsp = speex_alloc(st->lpcSize*sizeof(spx_lsp_t)); + st->interp_lsp = speex_alloc(st->lpcSize*sizeof(spx_lsp_t)); + st->interp_qlsp = speex_alloc(st->lpcSize*sizeof(spx_lsp_t)); + st->interp_lpc = speex_alloc(st->lpcSize*sizeof(spx_coef_t)); + st->interp_qlpc = speex_alloc(st->lpcSize*sizeof(spx_coef_t)); + st->pi_gain = speex_alloc((st->nbSubframes)*sizeof(spx_word32_t)); + + st->mem_sp = speex_alloc((st->lpcSize)*sizeof(spx_mem_t)); + st->mem_sp2 = speex_alloc((st->lpcSize)*sizeof(spx_mem_t)); + st->mem_sw = speex_alloc((st->lpcSize)*sizeof(spx_mem_t)); + + st->vbr_quality = 8; + st->vbr_enabled = 0; + st->vad_enabled = 0; + st->abr_enabled = 0; + st->relative_quality=0; + + st->complexity=2; + speex_encoder_ctl(st->st_low, SPEEX_GET_SAMPLING_RATE, &st->sampling_rate); + st->sampling_rate*=2; +#ifdef ENABLE_VALGRIND + VALGRIND_MAKE_READABLE(st, (st->stack-(char*)st)); +#endif + return st; +} + +void sb_encoder_destroy(void *state) +{ + SBEncState *st=(SBEncState*)state; + + speex_encoder_destroy(st->st_low); +#if !(defined(VAR_ARRAYS) || defined (USE_ALLOCA)) + speex_free_scratch(st->stack); +#endif + + speex_free(st->x0d); + speex_free(st->x1d); + speex_free(st->high); + speex_free(st->y0); + speex_free(st->y1); + + speex_free(st->h0_mem); + speex_free(st->h1_mem); + speex_free(st->g0_mem); + speex_free(st->g1_mem); + + speex_free(st->excBuf); + speex_free(st->res); + speex_free(st->sw); + speex_free(st->target); + speex_free(st->window); + speex_free(st->lagWindow); + + speex_free(st->autocorr); + speex_free(st->lpc); + speex_free(st->bw_lpc1); + speex_free(st->bw_lpc2); + speex_free(st->lsp); + speex_free(st->qlsp); + speex_free(st->old_lsp); + speex_free(st->old_qlsp); + speex_free(st->interp_lsp); + speex_free(st->interp_qlsp); + speex_free(st->interp_lpc); + speex_free(st->interp_qlpc); + speex_free(st->pi_gain); + + speex_free(st->mem_sp); + speex_free(st->mem_sp2); + speex_free(st->mem_sw); + + + speex_free(st); +} + + +int sb_encode(void *state, void *vin, SpeexBits *bits) +{ + SBEncState *st; + int i, roots, sub; + char *stack; + VARDECL(spx_mem_t *mem); + VARDECL(spx_sig_t *innov); + VARDECL(spx_word16_t *syn_resp); + VARDECL(spx_word32_t *low_pi_gain); + VARDECL(spx_sig_t *low_exc); + VARDECL(spx_sig_t *low_innov); + const SpeexSBMode *mode; + int dtx; + spx_word16_t *in = vin; + + st = (SBEncState*)state; + stack=st->stack; + mode = (const SpeexSBMode*)(st->mode->mode); + + { + VARDECL(spx_word16_t *low); + ALLOC(low, st->frame_size, spx_word16_t); + + /* Compute the two sub-bands by filtering with h0 and h1*/ + qmf_decomp(in, h0, st->x0d, st->x1d, st->full_frame_size, QMF_ORDER, st->h0_mem, stack); + + for (i=0;i<st->frame_size;i++) + low[i] = SATURATE(PSHR(st->x0d[i],SIG_SHIFT),32767); + + /* Encode the narrowband part*/ + speex_encode_native(st->st_low, low, bits); + + for (i=0;i<st->frame_size;i++) + st->x0d[i] = SHL(low[i],SIG_SHIFT); + } + /* High-band buffering / sync with low band */ + for (i=0;i<st->windowSize-st->frame_size;i++) + st->high[i] = st->high[st->frame_size+i]; + for (i=0;i<st->frame_size;i++) + st->high[st->windowSize-st->frame_size+i]=SATURATE(st->x1d[i],536854528); + + speex_move(st->excBuf, st->excBuf+st->frame_size, (st->bufSize-st->frame_size)*sizeof(spx_sig_t)); + + + ALLOC(low_pi_gain, st->nbSubframes, spx_word32_t); + ALLOC(low_exc, st->frame_size, spx_sig_t); + ALLOC(low_innov, st->frame_size, spx_sig_t); + speex_encoder_ctl(st->st_low, SPEEX_GET_PI_GAIN, low_pi_gain); + speex_encoder_ctl(st->st_low, SPEEX_GET_EXC, low_exc); + speex_encoder_ctl(st->st_low, SPEEX_GET_INNOV, low_innov); + + speex_encoder_ctl(st->st_low, SPEEX_GET_LOW_MODE, &dtx); + + if (dtx==0) + dtx=1; + else + dtx=0; + + { + VARDECL(spx_word16_t *w_sig); + ALLOC(w_sig, st->windowSize, spx_word16_t); + /* Window for analysis */ + for (i=0;i<st->windowSize;i++) + w_sig[i] = SHR(MULT16_16(SHR((spx_word32_t)(st->high[i]),SIG_SHIFT),st->window[i]),SIG_SHIFT); + + /* Compute auto-correlation */ + _spx_autocorr(w_sig, st->autocorr, st->lpcSize+1, st->windowSize); + } + st->autocorr[0] = ADD16(st->autocorr[0],MULT16_16_Q15(st->autocorr[0],st->lpc_floor)); /* Noise floor in auto-correlation domain */ + + /* Lag windowing: equivalent to filtering in the power-spectrum domain */ + for (i=0;i<st->lpcSize+1;i++) + st->autocorr[i] = MULT16_16_Q14(st->autocorr[i],st->lagWindow[i]); + + /* Levinson-Durbin */ + _spx_lpc(st->lpc, st->autocorr, st->lpcSize); + + /* LPC to LSPs (x-domain) transform */ + roots=lpc_to_lsp (st->lpc, st->lpcSize, st->lsp, 15, LSP_DELTA1, stack); + if (roots!=st->lpcSize) + { + roots = lpc_to_lsp (st->lpc, st->lpcSize, st->lsp, 11, LSP_DELTA2, stack); + if (roots!=st->lpcSize) { + /*If we can't find all LSP's, do some damage control and use a flat filter*/ + for (i=0;i<st->lpcSize;i++) + { + st->lsp[i]=M_PI*((float)(i+1))/(st->lpcSize+1); + } + } + } + + /* VBR code */ + if ((st->vbr_enabled || st->vad_enabled) && !dtx) + { + float e_low=0, e_high=0; + float ratio; + if (st->abr_enabled) + { + float qual_change=0; + if (st->abr_drift2 * st->abr_drift > 0) + { + /* Only adapt if long-term and short-term drift are the same sign */ + qual_change = -.00001*st->abr_drift/(1+st->abr_count); + if (qual_change>.1) + qual_change=.1; + if (qual_change<-.1) + qual_change=-.1; + } + st->vbr_quality += qual_change; + if (st->vbr_quality>10) + st->vbr_quality=10; + if (st->vbr_quality<0) + st->vbr_quality=0; + } + + + /*FIXME: Are the two signals (low, high) in sync? */ + e_low = compute_rms(st->x0d, st->frame_size); + e_high = compute_rms(st->high, st->frame_size); + ratio = 2*log((1+e_high)/(1+e_low)); + + speex_encoder_ctl(st->st_low, SPEEX_GET_RELATIVE_QUALITY, &st->relative_quality); + if (ratio<-4) + ratio=-4; + if (ratio>2) + ratio=2; + /*if (ratio>-2)*/ + if (st->vbr_enabled) + { + int modeid; + modeid = mode->nb_modes-1; + st->relative_quality+=1.0*(ratio+2); + if (st->relative_quality<-1) + st->relative_quality=-1; + while (modeid) + { + int v1; + float thresh; + v1=(int)floor(st->vbr_quality); + if (v1==10) + thresh = mode->vbr_thresh[modeid][v1]; + else + thresh = (st->vbr_quality-v1) * mode->vbr_thresh[modeid][v1+1] + + (1+v1-st->vbr_quality) * mode->vbr_thresh[modeid][v1]; + if (st->relative_quality >= thresh) + break; + modeid--; + } + speex_encoder_ctl(state, SPEEX_SET_HIGH_MODE, &modeid); + if (st->abr_enabled) + { + int bitrate; + speex_encoder_ctl(state, SPEEX_GET_BITRATE, &bitrate); + st->abr_drift+=(bitrate-st->abr_enabled); + st->abr_drift2 = .95*st->abr_drift2 + .05*(bitrate-st->abr_enabled); + st->abr_count += 1.0; + } + + } else { + /* VAD only */ + int modeid; + if (st->relative_quality<2.0) + modeid=1; + else + modeid=st->submodeSelect; + /*speex_encoder_ctl(state, SPEEX_SET_MODE, &mode);*/ + st->submodeID=modeid; + + } + /*fprintf (stderr, "%f %f\n", ratio, low_qual);*/ + } + + if (st->encode_submode) + { + speex_bits_pack(bits, 1, 1); + if (dtx) + speex_bits_pack(bits, 0, SB_SUBMODE_BITS); + else + speex_bits_pack(bits, st->submodeID, SB_SUBMODE_BITS); + } + + /* If null mode (no transmission), just set a couple things to zero*/ + if (dtx || st->submodes[st->submodeID] == NULL) + { + for (i=0;i<st->frame_size;i++) + st->exc[i]=st->sw[i]=VERY_SMALL; + + for (i=0;i<st->lpcSize;i++) + st->mem_sw[i]=0; + st->first=1; + + /* Final signal synthesis from excitation */ + iir_mem2(st->exc, st->interp_qlpc, st->high, st->frame_size, st->lpcSize, st->mem_sp); + +#ifdef RESYNTH + /* Reconstruct the original */ + fir_mem_up(st->x0d, h0, st->y0, st->full_frame_size, QMF_ORDER, st->g0_mem, stack); + fir_mem_up(st->high, h1, st->y1, st->full_frame_size, QMF_ORDER, st->g1_mem, stack); + + for (i=0;i<st->full_frame_size;i++) + in[i]=SHR(st->y0[i]-st->y1[i], SIG_SHIFT-1); +#endif + + if (dtx) + return 0; + else + return 1; + } + + + /* LSP quantization */ + SUBMODE(lsp_quant)(st->lsp, st->qlsp, st->lpcSize, bits); + + if (st->first) + { + for (i=0;i<st->lpcSize;i++) + st->old_lsp[i] = st->lsp[i]; + for (i=0;i<st->lpcSize;i++) + st->old_qlsp[i] = st->qlsp[i]; + } + + ALLOC(mem, st->lpcSize, spx_mem_t); + ALLOC(syn_resp, st->subframeSize, spx_word16_t); + ALLOC(innov, st->subframeSize, spx_sig_t); + + for (sub=0;sub<st->nbSubframes;sub++) + { + spx_sig_t *exc, *sp, *res, *target, *sw; + spx_word16_t filter_ratio; + int offset; + spx_word32_t rl, rh; + spx_word16_t eh=0; + + offset = st->subframeSize*sub; + sp=st->high+offset; + exc=st->exc+offset; + res=st->res+offset; + target=st->target+offset; + sw=st->sw+offset; + + /* LSP interpolation (quantized and unquantized) */ + lsp_interpolate(st->old_lsp, st->lsp, st->interp_lsp, st->lpcSize, sub, st->nbSubframes); + lsp_interpolate(st->old_qlsp, st->qlsp, st->interp_qlsp, st->lpcSize, sub, st->nbSubframes); + + lsp_enforce_margin(st->interp_lsp, st->lpcSize, LSP_MARGIN); + lsp_enforce_margin(st->interp_qlsp, st->lpcSize, LSP_MARGIN); + + lsp_to_lpc(st->interp_lsp, st->interp_lpc, st->lpcSize,stack); + lsp_to_lpc(st->interp_qlsp, st->interp_qlpc, st->lpcSize, stack); + + bw_lpc(st->gamma1, st->interp_lpc, st->bw_lpc1, st->lpcSize); + bw_lpc(st->gamma2, st->interp_lpc, st->bw_lpc2, st->lpcSize); + + /* Compute mid-band (4000 Hz for wideband) response of low-band and high-band + filters */ + st->pi_gain[sub]=LPC_SCALING; + rh = LPC_SCALING; + for (i=0;i<st->lpcSize;i+=2) + { + rh += st->interp_qlpc[i+1] - st->interp_qlpc[i]; + st->pi_gain[sub] += st->interp_qlpc[i] + st->interp_qlpc[i+1]; + } + + rl = low_pi_gain[sub]; +#ifdef FIXED_POINT + filter_ratio=DIV32_16(SHL(rl+82,2),SHR(82+rh,5)); +#else + filter_ratio=(rl+.01)/(rh+.01); +#endif + + /* Compute "real excitation" */ + fir_mem2(sp, st->interp_qlpc, exc, st->subframeSize, st->lpcSize, st->mem_sp2); + /* Compute energy of low-band and high-band excitation */ + + eh = compute_rms(exc, st->subframeSize); + + if (!SUBMODE(innovation_quant)) {/* 1 for spectral folding excitation, 0 for stochastic */ + float g; + spx_word16_t el; + el = compute_rms(low_innov+offset, st->subframeSize); + + /* Gain to use if we want to use the low-band excitation for high-band */ + g=eh/(.01+el); + +#if 0 + { + char *tmp_stack=stack; + float *tmp_sig; + float g2; + ALLOC(tmp_sig, st->subframeSize, spx_sig_t); + for (i=0;i<st->lpcSize;i++) + mem[i]=st->mem_sp[i]; + iir_mem2(low_innov+offset, st->interp_qlpc, tmp_sig, st->subframeSize, st->lpcSize, mem); + g2 = compute_rms(sp, st->subframeSize)/(.01+compute_rms(tmp_sig, st->subframeSize)); + /*fprintf (stderr, "gains: %f %f\n", g, g2);*/ + g = g2; + stack = tmp_stack; + } +#endif + +#ifdef FIXED_POINT + g *= filter_ratio/128.; +#else + g *= filter_ratio; +#endif + /*print_vec(&g, 1, "gain factor");*/ + /* Gain quantization */ + { + int quant = (int) floor(.5 + 10 + 8.0 * log((g+.0001))); + /*speex_warning_int("tata", quant);*/ + if (quant<0) + quant=0; + if (quant>31) + quant=31; + speex_bits_pack(bits, quant, 5); + } + + } else { + spx_word16_t gc; + spx_word32_t scale; + spx_word16_t el; + el = compute_rms(low_exc+offset, st->subframeSize); + + gc = DIV32_16(MULT16_16(filter_ratio,1+eh),1+el); + + /* This is a kludge that cleans up a historical bug */ + if (st->subframeSize==80) + gc *= 0.70711; + /*printf ("%f %f %f %f\n", el, eh, filter_ratio, gc);*/ +#ifdef FIXED_POINT + { + int qgc = scal_quant(gc, gc_quant_bound, 16); + speex_bits_pack(bits, qgc, 4); + gc = MULT16_32_Q15(28626,gc_quant_bound[qgc]); + } +#else + { + int qgc = (int)floor(.5+3.7*(log(gc)+0.15556)); + if (qgc<0) + qgc=0; + if (qgc>15) + qgc=15; + speex_bits_pack(bits, qgc, 4); + gc = exp((1/3.7)*qgc-0.15556); + } +#endif + if (st->subframeSize==80) + gc *= 1.4142; + + scale = SHL(MULT16_16(DIV32_16(SHL(gc,SIG_SHIFT-4),filter_ratio),(1+el)),4); + + compute_impulse_response(st->interp_qlpc, st->bw_lpc1, st->bw_lpc2, syn_resp, st->subframeSize, st->lpcSize, stack); + + + /* Reset excitation */ + for (i=0;i<st->subframeSize;i++) + exc[i]=VERY_SMALL; + + /* Compute zero response (ringing) of A(z/g1) / ( A(z/g2) * Aq(z) ) */ + for (i=0;i<st->lpcSize;i++) + mem[i]=st->mem_sp[i]; + iir_mem2(exc, st->interp_qlpc, exc, st->subframeSize, st->lpcSize, mem); + + for (i=0;i<st->lpcSize;i++) + mem[i]=st->mem_sw[i]; + filter_mem2(exc, st->bw_lpc1, st->bw_lpc2, res, st->subframeSize, st->lpcSize, mem); + + /* Compute weighted signal */ + for (i=0;i<st->lpcSize;i++) + mem[i]=st->mem_sw[i]; + filter_mem2(sp, st->bw_lpc1, st->bw_lpc2, sw, st->subframeSize, st->lpcSize, mem); + + /* Compute target signal */ + for (i=0;i<st->subframeSize;i++) + target[i]=sw[i]-res[i]; + + for (i=0;i<st->subframeSize;i++) + exc[i]=0; + + signal_div(target, target, scale, st->subframeSize); + + /* Reset excitation */ + for (i=0;i<st->subframeSize;i++) + innov[i]=0; + + /*print_vec(target, st->subframeSize, "\ntarget");*/ + SUBMODE(innovation_quant)(target, st->interp_qlpc, st->bw_lpc1, st->bw_lpc2, + SUBMODE(innovation_params), st->lpcSize, st->subframeSize, + innov, syn_resp, bits, stack, (st->complexity+1)>>1, SUBMODE(double_codebook)); + /*print_vec(target, st->subframeSize, "after");*/ + + signal_mul(innov, innov, scale, st->subframeSize); + + for (i=0;i<st->subframeSize;i++) + exc[i] = ADD32(exc[i], innov[i]); + + if (SUBMODE(double_codebook)) { + char *tmp_stack=stack; + VARDECL(spx_sig_t *innov2); + ALLOC(innov2, st->subframeSize, spx_sig_t); + for (i=0;i<st->subframeSize;i++) + innov2[i]=0; + for (i=0;i<st->subframeSize;i++) + target[i]*=2.5; + SUBMODE(innovation_quant)(target, st->interp_qlpc, st->bw_lpc1, st->bw_lpc2, + SUBMODE(innovation_params), st->lpcSize, st->subframeSize, + innov2, syn_resp, bits, stack, (st->complexity+1)>>1, 0); + for (i=0;i<st->subframeSize;i++) + innov2[i]*=scale*(1/2.5)/SIG_SCALING; + for (i=0;i<st->subframeSize;i++) + exc[i] = ADD32(exc[i],innov2[i]); + stack = tmp_stack; + } + + } + + /*Keep the previous memory*/ + for (i=0;i<st->lpcSize;i++) + mem[i]=st->mem_sp[i]; + /* Final signal synthesis from excitation */ + iir_mem2(exc, st->interp_qlpc, sp, st->subframeSize, st->lpcSize, st->mem_sp); + + /* Compute weighted signal again, from synthesized speech (not sure it's the right thing) */ + filter_mem2(sp, st->bw_lpc1, st->bw_lpc2, sw, st->subframeSize, st->lpcSize, st->mem_sw); + } + + +#ifdef RESYNTH + /* Reconstruct the original */ + fir_mem_up(st->x0d, h0, st->y0, st->full_frame_size, QMF_ORDER, st->g0_mem, stack); + fir_mem_up(st->high, h1, st->y1, st->full_frame_size, QMF_ORDER, st->g1_mem, stack); + + for (i=0;i<st->full_frame_size;i++) + in[i]=SHR(st->y0[i]-st->y1[i], SIG_SHIFT-1); +#endif + for (i=0;i<st->lpcSize;i++) + st->old_lsp[i] = st->lsp[i]; + for (i=0;i<st->lpcSize;i++) + st->old_qlsp[i] = st->qlsp[i]; + + st->first=0; + + return 1; +} + + + + + +void *sb_decoder_init(const SpeexMode *m) +{ + SBDecState *st; + const SpeexSBMode *mode; + st = (SBDecState*)speex_alloc(sizeof(SBDecState)); + if (!st) + return NULL; +#if defined(VAR_ARRAYS) || defined (USE_ALLOCA) + st->stack = NULL; +#else + st->stack = (char*)speex_alloc_scratch(SB_DEC_STACK); +#endif + st->mode = m; + mode=(const SpeexSBMode*)m->mode; + + st->encode_submode = 1; + + + + + st->st_low = speex_decoder_init(mode->nb_mode); + st->full_frame_size = 2*mode->frameSize; + st->frame_size = mode->frameSize; + st->subframeSize = mode->subframeSize; + st->nbSubframes = mode->frameSize/mode->subframeSize; + st->lpcSize=mode->lpcSize; + speex_decoder_ctl(st->st_low, SPEEX_GET_SAMPLING_RATE, &st->sampling_rate); + st->sampling_rate*=2; + + st->submodes=mode->submodes; + st->submodeID=mode->defaultSubmode; + + st->first=1; + + + st->x0d=speex_alloc((st->frame_size)*sizeof(spx_sig_t)); + st->x1d=speex_alloc((st->frame_size)*sizeof(spx_sig_t)); + st->high=speex_alloc((st->full_frame_size)*sizeof(spx_sig_t)); + st->y0=speex_alloc((st->full_frame_size)*sizeof(spx_sig_t)); + st->y1=speex_alloc((st->full_frame_size)*sizeof(spx_sig_t)); + + st->g0_mem=speex_alloc((QMF_ORDER)*sizeof(spx_word32_t)); + st->g1_mem=speex_alloc((QMF_ORDER)*sizeof(spx_word32_t)); + + st->exc=speex_alloc((st->frame_size)*sizeof(spx_sig_t)); + + st->qlsp = speex_alloc((st->lpcSize)*sizeof(spx_lsp_t)); + st->old_qlsp = speex_alloc((st->lpcSize)*sizeof(spx_lsp_t)); + st->interp_qlsp = speex_alloc(st->lpcSize*sizeof(spx_lsp_t)); + st->interp_qlpc = speex_alloc(st->lpcSize*sizeof(spx_coef_t)); + + st->pi_gain = speex_alloc((st->nbSubframes)*sizeof(spx_word32_t)); + st->mem_sp = speex_alloc((2*st->lpcSize)*sizeof(spx_mem_t)); + + st->lpc_enh_enabled=0; + st->seed = 1000; + +#ifdef ENABLE_VALGRIND + VALGRIND_MAKE_READABLE(st, (st->stack-(char*)st)); +#endif + return st; +} + +void sb_decoder_destroy(void *state) +{ + SBDecState *st; + st = (SBDecState*)state; + speex_decoder_destroy(st->st_low); +#if !(defined(VAR_ARRAYS) || defined (USE_ALLOCA)) + speex_free_scratch(st->stack); +#endif + + speex_free(st->x0d); + speex_free(st->x1d); + speex_free(st->high); + speex_free(st->y0); + speex_free(st->y1); + speex_free(st->g0_mem); + speex_free(st->g1_mem); + speex_free(st->exc); + speex_free(st->qlsp); + speex_free(st->old_qlsp); + speex_free(st->interp_qlsp); + speex_free(st->interp_qlpc); + speex_free(st->pi_gain); + speex_free(st->mem_sp); + + speex_free(state); +} + +static void sb_decode_lost(SBDecState *st, spx_word16_t *out, int dtx, char *stack) +{ + int i; + VARDECL(spx_coef_t *awk1); + VARDECL(spx_coef_t *awk2); + VARDECL(spx_coef_t *awk3); + int saved_modeid=0; + + if (dtx) + { + saved_modeid=st->submodeID; + st->submodeID=1; + } else { + bw_lpc(GAMMA_SCALING*0.99, st->interp_qlpc, st->interp_qlpc, st->lpcSize); + } + + st->first=1; + + ALLOC(awk1, st->lpcSize+1, spx_coef_t); + ALLOC(awk2, st->lpcSize+1, spx_coef_t); + ALLOC(awk3, st->lpcSize+1, spx_coef_t); + + if (st->lpc_enh_enabled) + { + spx_word16_t k1,k2,k3; + if (st->submodes[st->submodeID] != NULL) + { + k1=SUBMODE(lpc_enh_k1); + k2=SUBMODE(lpc_enh_k2); + k3=SUBMODE(lpc_enh_k3); + } else { + k1=k2=.7*GAMMA_SCALING; + k3 = 0; + } + bw_lpc(k1, st->interp_qlpc, awk1, st->lpcSize); + bw_lpc(k2, st->interp_qlpc, awk2, st->lpcSize); + bw_lpc(k3, st->interp_qlpc, awk3, st->lpcSize); + /*fprintf (stderr, "%f %f %f\n", k1, k2, k3);*/ + } + + + /* Final signal synthesis from excitation */ + if (!dtx) + { + spx_word16_t low_ener; + low_ener = .9*compute_rms(st->exc, st->frame_size); + for (i=0;i<st->frame_size;i++) + st->exc[i] = speex_rand(low_ener, &st->seed); + } + + for (i=0;i<st->frame_size;i++) + st->high[i]=st->exc[i]; + + if (st->lpc_enh_enabled) + { + /* Use enhanced LPC filter */ + filter_mem2(st->high, awk2, awk1, st->high, st->frame_size, st->lpcSize, + st->mem_sp+st->lpcSize); + filter_mem2(st->high, awk3, st->interp_qlpc, st->high, st->frame_size, st->lpcSize, + st->mem_sp); + } else { + /* Use regular filter */ + for (i=0;i<st->lpcSize;i++) + st->mem_sp[st->lpcSize+i] = 0; + iir_mem2(st->high, st->interp_qlpc, st->high, st->frame_size, st->lpcSize, + st->mem_sp); + } + + /*iir_mem2(st->exc, st->interp_qlpc, st->high, st->frame_size, st->lpcSize, st->mem_sp);*/ + + /* Reconstruct the original */ + fir_mem_up(st->x0d, h0, st->y0, st->full_frame_size, QMF_ORDER, st->g0_mem, stack); + fir_mem_up(st->high, h1, st->y1, st->full_frame_size, QMF_ORDER, st->g1_mem, stack); + + mix_and_saturate(st->y0, st->y1, out, st->full_frame_size); + + if (dtx) + { + st->submodeID=saved_modeid; + } + + return; +} + +int sb_decode(void *state, SpeexBits *bits, void *vout) +{ + int i, sub; + SBDecState *st; + int wideband; + int ret; + char *stack; + VARDECL(spx_word32_t *low_pi_gain); + VARDECL(spx_sig_t *low_exc); + VARDECL(spx_sig_t *low_innov); + VARDECL(spx_coef_t *awk1); + VARDECL(spx_coef_t *awk2); + VARDECL(spx_coef_t *awk3); + int dtx; + const SpeexSBMode *mode; + spx_word16_t *out = vout; + + st = (SBDecState*)state; + stack=st->stack; + mode = (const SpeexSBMode*)(st->mode->mode); + + { + VARDECL(spx_word16_t *low); + ALLOC(low, st->frame_size, spx_word16_t); + + /* Decode the low-band */ + ret = speex_decode_native(st->st_low, bits, low); + + for (i=0;i<st->frame_size;i++) + st->x0d[i] = SHL((spx_sig_t)low[i], SIG_SHIFT); + } + + speex_decoder_ctl(st->st_low, SPEEX_GET_DTX_STATUS, &dtx); + + /* If error decoding the narrowband part, propagate error */ + if (ret!=0) + { + return ret; + } + + if (!bits) + { + sb_decode_lost(st, out, dtx, stack); + return 0; + } + + if (st->encode_submode) + { + + /*Check "wideband bit"*/ + if (speex_bits_remaining(bits)>0) + wideband = speex_bits_peek(bits); + else + wideband = 0; + if (wideband) + { + /*Regular wideband frame, read the submode*/ + wideband = speex_bits_unpack_unsigned(bits, 1); + st->submodeID = speex_bits_unpack_unsigned(bits, SB_SUBMODE_BITS); + } else + { + /*Was a narrowband frame, set "null submode"*/ + st->submodeID = 0; + } + if (st->submodeID != 0 && st->submodes[st->submodeID] == NULL) + { + speex_warning("Invalid mode encountered: corrupted stream?"); + return -2; + } + } + + /* If null mode (no transmission), just set a couple things to zero*/ + if (st->submodes[st->submodeID] == NULL) + { + if (dtx) + { + sb_decode_lost(st, out, 1, stack); + return 0; + } + + for (i=0;i<st->frame_size;i++) + st->exc[i]=VERY_SMALL; + + st->first=1; + + /* Final signal synthesis from excitation */ + iir_mem2(st->exc, st->interp_qlpc, st->high, st->frame_size, st->lpcSize, st->mem_sp); + + fir_mem_up(st->x0d, h0, st->y0, st->full_frame_size, QMF_ORDER, st->g0_mem, stack); + fir_mem_up(st->high, h1, st->y1, st->full_frame_size, QMF_ORDER, st->g1_mem, stack); + + mix_and_saturate(st->y0, st->y1, out, st->full_frame_size); + + return 0; + + } + + for (i=0;i<st->frame_size;i++) + st->exc[i]=0; + + ALLOC(low_pi_gain, st->nbSubframes, spx_word32_t); + ALLOC(low_exc, st->frame_size, spx_sig_t); + ALLOC(low_innov, st->frame_size, spx_sig_t); + speex_decoder_ctl(st->st_low, SPEEX_GET_PI_GAIN, low_pi_gain); + speex_decoder_ctl(st->st_low, SPEEX_GET_EXC, low_exc); + speex_decoder_ctl(st->st_low, SPEEX_GET_INNOV, low_innov); + + SUBMODE(lsp_unquant)(st->qlsp, st->lpcSize, bits); + + if (st->first) + { + for (i=0;i<st->lpcSize;i++) + st->old_qlsp[i] = st->qlsp[i]; + } + + ALLOC(awk1, st->lpcSize+1, spx_coef_t); + ALLOC(awk2, st->lpcSize+1, spx_coef_t); + ALLOC(awk3, st->lpcSize+1, spx_coef_t); + + for (sub=0;sub<st->nbSubframes;sub++) + { + spx_sig_t *exc, *sp; + spx_word16_t filter_ratio; + spx_word16_t el=0; + int offset; + spx_word32_t rl=0,rh=0; + + offset = st->subframeSize*sub; + sp=st->high+offset; + exc=st->exc+offset; + + /* LSP interpolation */ + lsp_interpolate(st->old_qlsp, st->qlsp, st->interp_qlsp, st->lpcSize, sub, st->nbSubframes); + + lsp_enforce_margin(st->interp_qlsp, st->lpcSize, LSP_MARGIN); + + /* LSP to LPC */ + lsp_to_lpc(st->interp_qlsp, st->interp_qlpc, st->lpcSize, stack); + + + if (st->lpc_enh_enabled) + { + spx_word16_t k1,k2,k3; + k1=SUBMODE(lpc_enh_k1); + k2=SUBMODE(lpc_enh_k2); + k3=SUBMODE(lpc_enh_k3); + bw_lpc(k1, st->interp_qlpc, awk1, st->lpcSize); + bw_lpc(k2, st->interp_qlpc, awk2, st->lpcSize); + bw_lpc(k3, st->interp_qlpc, awk3, st->lpcSize); + /*fprintf (stderr, "%f %f %f\n", k1, k2, k3);*/ + } + + + /* Calculate reponse ratio between the low and high filter in the middle + of the band (4000 Hz) */ + + st->pi_gain[sub]=LPC_SCALING; + rh = LPC_SCALING; + for (i=0;i<st->lpcSize;i+=2) + { + rh += st->interp_qlpc[i+1] - st->interp_qlpc[i]; + st->pi_gain[sub] += st->interp_qlpc[i] + st->interp_qlpc[i+1]; + } + + rl = low_pi_gain[sub]; +#ifdef FIXED_POINT + filter_ratio=DIV32_16(SHL(rl+82,2),SHR(82+rh,5)); +#else + filter_ratio=(rl+.01)/(rh+.01); +#endif + + for (i=0;i<st->subframeSize;i++) + exc[i]=0; + if (!SUBMODE(innovation_unquant)) + { + float g; + int quant; + + quant = speex_bits_unpack_unsigned(bits, 5); + g= exp(((float)quant-10)/8.0); + +#ifdef FIXED_POINT + g /= filter_ratio/128.; +#else + g /= filter_ratio; +#endif + /* High-band excitation using the low-band excitation and a gain */ + +#if 0 + for (i=0;i<st->subframeSize;i++) + exc[i]=mode->folding_gain*g*low_innov[offset+i]; +#else + { + float tmp=1; + /*static tmp1=0,tmp2=0; + static int seed=1; + el = compute_rms(low_innov+offset, st->subframeSize);*/ + for (i=0;i<st->subframeSize;i++) + { + float e=tmp*g*mode->folding_gain*low_innov[offset+i]; + tmp *= -1; + exc[i] = e; + /*float r = speex_rand(g*el,&seed); + exc[i] = .5*(r+tmp2 + e-tmp1); + tmp1 = e; + tmp2 = r;*/ + } + + } + + /*speex_rand_vec(mode->folding_gain*g*el, exc, st->subframeSize);*/ +#endif + } else { + spx_word16_t gc; + spx_word32_t scale; + int qgc = speex_bits_unpack_unsigned(bits, 4); + + el = compute_rms(low_exc+offset, st->subframeSize); + +#ifdef FIXED_POINT + gc = MULT16_32_Q15(28626,gc_quant_bound[qgc]); +#else + gc = exp((1/3.7)*qgc-0.15556); +#endif + + if (st->subframeSize==80) + gc *= 1.4142; + + scale = SHL(MULT16_16(DIV32_16(SHL(gc,SIG_SHIFT-4),filter_ratio),(1+el)),4); + + SUBMODE(innovation_unquant)(exc, SUBMODE(innovation_params), st->subframeSize, + bits, stack); + + signal_mul(exc,exc,scale,st->subframeSize); + + if (SUBMODE(double_codebook)) { + char *tmp_stack=stack; + VARDECL(spx_sig_t *innov2); + ALLOC(innov2, st->subframeSize, spx_sig_t); + for (i=0;i<st->subframeSize;i++) + innov2[i]=0; + SUBMODE(innovation_unquant)(innov2, SUBMODE(innovation_params), st->subframeSize, + bits, stack); + for (i=0;i<st->subframeSize;i++) + innov2[i]*=scale/(float)SIG_SCALING*(1/2.5); + for (i=0;i<st->subframeSize;i++) + exc[i] = ADD32(exc[i],innov2[i]); + stack = tmp_stack; + } + + } + + for (i=0;i<st->subframeSize;i++) + sp[i]=exc[i]; + if (st->lpc_enh_enabled) + { + /* Use enhanced LPC filter */ + filter_mem2(sp, awk2, awk1, sp, st->subframeSize, st->lpcSize, + st->mem_sp+st->lpcSize); + filter_mem2(sp, awk3, st->interp_qlpc, sp, st->subframeSize, st->lpcSize, + st->mem_sp); + } else { + /* Use regular filter */ + for (i=0;i<st->lpcSize;i++) + st->mem_sp[st->lpcSize+i] = 0; + iir_mem2(sp, st->interp_qlpc, sp, st->subframeSize, st->lpcSize, + st->mem_sp); + } + /*iir_mem2(exc, st->interp_qlpc, sp, st->subframeSize, st->lpcSize, st->mem_sp);*/ + + } + + fir_mem_up(st->x0d, h0, st->y0, st->full_frame_size, QMF_ORDER, st->g0_mem, stack); + fir_mem_up(st->high, h1, st->y1, st->full_frame_size, QMF_ORDER, st->g1_mem, stack); + + mix_and_saturate(st->y0, st->y1, out, st->full_frame_size); + + for (i=0;i<st->lpcSize;i++) + st->old_qlsp[i] = st->qlsp[i]; + + st->first=0; + + return 0; +} + + +int sb_encoder_ctl(void *state, int request, void *ptr) +{ + SBEncState *st; + st=(SBEncState*)state; + switch(request) + { + case SPEEX_GET_FRAME_SIZE: + (*(int*)ptr) = st->full_frame_size; + break; + case SPEEX_SET_HIGH_MODE: + st->submodeSelect = st->submodeID = (*(int*)ptr); + break; + case SPEEX_SET_LOW_MODE: + speex_encoder_ctl(st->st_low, SPEEX_SET_LOW_MODE, ptr); + break; + case SPEEX_SET_DTX: + speex_encoder_ctl(st->st_low, SPEEX_SET_DTX, ptr); + break; + case SPEEX_GET_DTX: + speex_encoder_ctl(st->st_low, SPEEX_GET_DTX, ptr); + break; + case SPEEX_GET_LOW_MODE: + speex_encoder_ctl(st->st_low, SPEEX_GET_LOW_MODE, ptr); + break; + case SPEEX_SET_MODE: + speex_encoder_ctl(st, SPEEX_SET_QUALITY, ptr); + break; + case SPEEX_SET_VBR: + st->vbr_enabled = (*(int*)ptr); + speex_encoder_ctl(st->st_low, SPEEX_SET_VBR, ptr); + break; + case SPEEX_GET_VBR: + (*(int*)ptr) = st->vbr_enabled; + break; + case SPEEX_SET_VAD: + st->vad_enabled = (*(int*)ptr); + speex_encoder_ctl(st->st_low, SPEEX_SET_VAD, ptr); + break; + case SPEEX_GET_VAD: + (*(int*)ptr) = st->vad_enabled; + break; + case SPEEX_SET_VBR_QUALITY: + { + int q; + float qual = (*(float*)ptr)+.6; + st->vbr_quality = (*(float*)ptr); + if (qual>10) + qual=10; + q=(int)floor(.5+*(float*)ptr); + if (q>10) + q=10; + speex_encoder_ctl(st->st_low, SPEEX_SET_VBR_QUALITY, &qual); + speex_encoder_ctl(state, SPEEX_SET_QUALITY, &q); + break; + } + case SPEEX_GET_VBR_QUALITY: + (*(float*)ptr) = st->vbr_quality; + break; + case SPEEX_SET_ABR: + st->abr_enabled = (*(int*)ptr); + st->vbr_enabled = 1; + speex_encoder_ctl(st->st_low, SPEEX_SET_VBR, &st->vbr_enabled); + { + int i=10, rate, target; + float vbr_qual; + target = (*(int*)ptr); + while (i>=0) + { + speex_encoder_ctl(st, SPEEX_SET_QUALITY, &i); + speex_encoder_ctl(st, SPEEX_GET_BITRATE, &rate); + if (rate <= target) + break; + i--; + } + vbr_qual=i; + if (vbr_qual<0) + vbr_qual=0; + speex_encoder_ctl(st, SPEEX_SET_VBR_QUALITY, &vbr_qual); + st->abr_count=0; + st->abr_drift=0; + st->abr_drift2=0; + } + + break; + case SPEEX_GET_ABR: + (*(int*)ptr) = st->abr_enabled; + break; + case SPEEX_SET_QUALITY: + { + int nb_qual; + int quality = (*(int*)ptr); + if (quality < 0) + quality = 0; + if (quality > 10) + quality = 10; + st->submodeSelect = st->submodeID = ((const SpeexSBMode*)(st->mode->mode))->quality_map[quality]; + nb_qual = ((const SpeexSBMode*)(st->mode->mode))->low_quality_map[quality]; + speex_encoder_ctl(st->st_low, SPEEX_SET_MODE, &nb_qual); + } + break; + case SPEEX_SET_COMPLEXITY: + speex_encoder_ctl(st->st_low, SPEEX_SET_COMPLEXITY, ptr); + st->complexity = (*(int*)ptr); + if (st->complexity<1) + st->complexity=1; + break; + case SPEEX_GET_COMPLEXITY: + (*(int*)ptr) = st->complexity; + break; + case SPEEX_SET_BITRATE: + { + int i=10, rate, target; + target = (*(int*)ptr); + while (i>=0) + { + speex_encoder_ctl(st, SPEEX_SET_QUALITY, &i); + speex_encoder_ctl(st, SPEEX_GET_BITRATE, &rate); + if (rate <= target) + break; + i--; + } + } + break; + case SPEEX_GET_BITRATE: + speex_encoder_ctl(st->st_low, request, ptr); + /*fprintf (stderr, "before: %d\n", (*(int*)ptr));*/ + if (st->submodes[st->submodeID]) + (*(int*)ptr) += st->sampling_rate*SUBMODE(bits_per_frame)/st->full_frame_size; + else + (*(int*)ptr) += st->sampling_rate*(SB_SUBMODE_BITS+1)/st->full_frame_size; + /*fprintf (stderr, "after: %d\n", (*(int*)ptr));*/ + break; + case SPEEX_SET_SAMPLING_RATE: + { + int tmp=(*(int*)ptr); + st->sampling_rate = tmp; + tmp>>=1; + speex_encoder_ctl(st->st_low, SPEEX_SET_SAMPLING_RATE, &tmp); + } + break; + case SPEEX_GET_SAMPLING_RATE: + (*(int*)ptr)=st->sampling_rate; + break; + case SPEEX_RESET_STATE: + { + int i; + st->first = 1; + for (i=0;i<st->lpcSize;i++) + st->lsp[i]=(M_PI*((float)(i+1)))/(st->lpcSize+1); + for (i=0;i<st->lpcSize;i++) + st->mem_sw[i]=st->mem_sp[i]=st->mem_sp2[i]=0; + for (i=0;i<st->bufSize;i++) + st->excBuf[i]=0; + for (i=0;i<QMF_ORDER;i++) + st->h0_mem[i]=st->h1_mem[i]=st->g0_mem[i]=st->g1_mem[i]=0; + } + break; + case SPEEX_SET_SUBMODE_ENCODING: + st->encode_submode = (*(int*)ptr); + speex_encoder_ctl(st->st_low, SPEEX_SET_SUBMODE_ENCODING, &ptr); + break; + case SPEEX_GET_SUBMODE_ENCODING: + (*(int*)ptr) = st->encode_submode; + break; + case SPEEX_GET_LOOKAHEAD: + speex_encoder_ctl(st->st_low, SPEEX_GET_LOOKAHEAD, ptr); + (*(int*)ptr) = 2*(*(int*)ptr) + QMF_ORDER - 1; + break; + case SPEEX_GET_PI_GAIN: + { + int i; + spx_word32_t *g = (spx_word32_t*)ptr; + for (i=0;i<st->nbSubframes;i++) + g[i]=st->pi_gain[i]; + } + break; + case SPEEX_GET_EXC: + { + int i; + spx_sig_t *e = (spx_sig_t*)ptr; + for (i=0;i<st->full_frame_size;i++) + e[i]=0; + for (i=0;i<st->frame_size;i++) + e[2*i]=2*st->exc[i]; + } + break; + case SPEEX_GET_INNOV: + { + int i; + spx_sig_t *e = (spx_sig_t*)ptr; + for (i=0;i<st->full_frame_size;i++) + e[i]=0; + for (i=0;i<st->frame_size;i++) + e[2*i]=2*st->exc[i]; + } + break; + case SPEEX_GET_RELATIVE_QUALITY: + (*(float*)ptr)=st->relative_quality; + break; + default: + speex_warning_int("Unknown nb_ctl request: ", request); + return -1; + } + return 0; +} + +int sb_decoder_ctl(void *state, int request, void *ptr) +{ + SBDecState *st; + st=(SBDecState*)state; + switch(request) + { + case SPEEX_SET_HIGH_MODE: + st->submodeID = (*(int*)ptr); + break; + case SPEEX_SET_LOW_MODE: + speex_decoder_ctl(st->st_low, SPEEX_SET_LOW_MODE, ptr); + break; + case SPEEX_GET_LOW_MODE: + speex_decoder_ctl(st->st_low, SPEEX_GET_LOW_MODE, ptr); + break; + case SPEEX_GET_FRAME_SIZE: + (*(int*)ptr) = st->full_frame_size; + break; + case SPEEX_SET_ENH: + speex_decoder_ctl(st->st_low, request, ptr); + st->lpc_enh_enabled = *((int*)ptr); + break; + case SPEEX_GET_ENH: + *((int*)ptr) = st->lpc_enh_enabled; + break; + case SPEEX_SET_MODE: + case SPEEX_SET_QUALITY: + { + int nb_qual; + int quality = (*(int*)ptr); + if (quality < 0) + quality = 0; + if (quality > 10) + quality = 10; + st->submodeID = ((const SpeexSBMode*)(st->mode->mode))->quality_map[quality]; + nb_qual = ((const SpeexSBMode*)(st->mode->mode))->low_quality_map[quality]; + speex_decoder_ctl(st->st_low, SPEEX_SET_MODE, &nb_qual); + } + break; + case SPEEX_GET_BITRATE: + speex_decoder_ctl(st->st_low, request, ptr); + if (st->submodes[st->submodeID]) + (*(int*)ptr) += st->sampling_rate*SUBMODE(bits_per_frame)/st->full_frame_size; + else + (*(int*)ptr) += st->sampling_rate*(SB_SUBMODE_BITS+1)/st->full_frame_size; + break; + case SPEEX_SET_SAMPLING_RATE: + { + int tmp=(*(int*)ptr); + st->sampling_rate = tmp; + tmp>>=1; + speex_decoder_ctl(st->st_low, SPEEX_SET_SAMPLING_RATE, &tmp); + } + break; + case SPEEX_GET_SAMPLING_RATE: + (*(int*)ptr)=st->sampling_rate; + break; + case SPEEX_SET_HANDLER: + speex_decoder_ctl(st->st_low, SPEEX_SET_HANDLER, ptr); + break; + case SPEEX_SET_USER_HANDLER: + speex_decoder_ctl(st->st_low, SPEEX_SET_USER_HANDLER, ptr); + break; + case SPEEX_RESET_STATE: + { + int i; + for (i=0;i<2*st->lpcSize;i++) + st->mem_sp[i]=0; + for (i=0;i<QMF_ORDER;i++) + st->g0_mem[i]=st->g1_mem[i]=0; + } + break; + case SPEEX_SET_SUBMODE_ENCODING: + st->encode_submode = (*(int*)ptr); + speex_decoder_ctl(st->st_low, SPEEX_SET_SUBMODE_ENCODING, &ptr); + break; + case SPEEX_GET_SUBMODE_ENCODING: + (*(int*)ptr) = st->encode_submode; + break; + case SPEEX_GET_PI_GAIN: + { + int i; + spx_word32_t *g = (spx_word32_t*)ptr; + for (i=0;i<st->nbSubframes;i++) + g[i]=st->pi_gain[i]; + } + break; + case SPEEX_GET_EXC: + { + int i; + spx_sig_t *e = (spx_sig_t*)ptr; + for (i=0;i<st->full_frame_size;i++) + e[i]=0; + for (i=0;i<st->frame_size;i++) + e[2*i]=2*st->exc[i]; + } + break; + case SPEEX_GET_INNOV: + { + int i; + spx_sig_t *e = (spx_sig_t*)ptr; + for (i=0;i<st->full_frame_size;i++) + e[i]=0; + for (i=0;i<st->frame_size;i++) + e[2*i]=2*st->exc[i]; + } + break; + case SPEEX_GET_DTX_STATUS: + speex_decoder_ctl(st->st_low, SPEEX_GET_DTX_STATUS, ptr); + break; + default: + speex_warning_int("Unknown nb_ctl request: ", request); + return -1; + } + return 0; +} + +#endif + |