diff options
Diffstat (limited to 'pjmedia/src/pjmedia-codec/speex/z-pcm_wrapper.c')
| -rw-r--r-- | pjmedia/src/pjmedia-codec/speex/z-pcm_wrapper.c | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/pjmedia/src/pjmedia-codec/speex/z-pcm_wrapper.c b/pjmedia/src/pjmedia-codec/speex/z-pcm_wrapper.c deleted file mode 100644 index 71f41812..00000000 --- a/pjmedia/src/pjmedia-codec/speex/z-pcm_wrapper.c +++ /dev/null @@ -1,184 +0,0 @@ -/* Copyright (C) 2005 Jean-Marc Valin */ -/** - @file pcm_wrapper.c - @brief PCM encoding wrapped as a Speex mode - */ -/* - 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 "speex/pcm_wrapper.h" -#include "misc.h" - - -typedef struct { - const SpeexMode *mode; - int frame_size; - int format; -} PCMState; - -/** Initializes encoder state*/ -static void *pcm_encoder_init(const SpeexMode *m) -{ - PCMState *st = (PCMState*)speex_alloc(sizeof(PCMState)); - st->mode = m; - st->frame_size = 64; - return st; -} - -/** De-allocates encoder state resources*/ -static void pcm_encoder_destroy(void *state) -{ - speex_free(state); -} - -/** Encodes one frame*/ -static int pcm_encode(void *state, void *vin, SpeexBits *bits) -{ - int i; - PCMState *st = (PCMState*)state; - spx_word16_t *in = vin; - for (i=0;i<st->frame_size;i++) - { - spx_int16_t x; - x = in[i]; - speex_bits_pack(bits, x, 16); - } - return 0; -} - -/** Initializes decoder state*/ -static void *pcm_decoder_init(const SpeexMode *m) -{ - PCMState *st = (PCMState*)speex_alloc(sizeof(PCMState)); - st->mode = m; - st->frame_size = 64; - return st; -} - -/** De-allocates decoder state resources*/ -static void pcm_decoder_destroy(void *state) -{ - speex_free(state); -} - -/** Decodes one frame*/ -static int pcm_decode(void *state, SpeexBits *bits, void *vout) -{ - int i; - PCMState *st = (PCMState*)state; - spx_word16_t *out = vout; - for (i=0;i<st->frame_size;i++) - { - spx_int16_t x; - x = speex_bits_unpack_signed(bits, 16); - out[i] = x; - } - return 0; -} - -/** ioctl-like function for controlling a narrowband encoder */ -static int pcm_encoder_ctl(void *state, int request, void *ptr) -{ - PCMState *st; - st=(PCMState*)state; - switch(request) - { - case PCM_SET_FRAME_SIZE: - st->frame_size = (*(int*)ptr); - break; - case PCM_GET_FRAME_SIZE: - (*(int*)ptr) = st->frame_size; - break; - default: - speex_warning_int("Unknown nb_ctl request: ", request); - return -1; - } - return 0; -} - -/** ioctl-like function for controlling a narrowband decoder */ -static int pcm_decoder_ctl(void *state, int request, void *ptr) -{ - PCMState *st; - st=(PCMState*)state; - switch(request) - { - case PCM_SET_FRAME_SIZE: - st->frame_size = (*(int*)ptr); - break; - case PCM_GET_FRAME_SIZE: - (*(int*)ptr) = st->frame_size; - break; - default: - speex_warning_int("Unknown nb_ctl request: ", request); - return -1; - } - return 0; -} - -typedef struct { -} PCMMode; - -static PCMMode pcmmode; - -int pcm_mode_query(const void *mode, int request, void *ptr) -{ - /*const PCMMode *m = (const PCMMode*)mode;*/ - - switch (request) - { - default: - speex_warning_int("Unknown nb_mode_query request: ", request); - return -1; - } - return 0; -} -/* Default mode for narrowband */ -const SpeexMode pcm_wrapper_mode = { - &pcmmode, - pcm_mode_query, - "PCM", - 0, - 4, - &pcm_encoder_init, - &pcm_encoder_destroy, - &pcm_encode, - &pcm_decoder_init, - &pcm_decoder_destroy, - &pcm_decode, - &pcm_encoder_ctl, - &pcm_decoder_ctl, -}; - -const SpeexMode *speex_pcm_wrapper = &pcm_wrapper_mode; |