diff options
Diffstat (limited to 'branches/1.0/tinyDAV/src/codecs/ilbc/tdav_codec_ilbc.c')
| -rw-r--r-- | branches/1.0/tinyDAV/src/codecs/ilbc/tdav_codec_ilbc.c | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/branches/1.0/tinyDAV/src/codecs/ilbc/tdav_codec_ilbc.c b/branches/1.0/tinyDAV/src/codecs/ilbc/tdav_codec_ilbc.c deleted file mode 100644 index 23271b4..0000000 --- a/branches/1.0/tinyDAV/src/codecs/ilbc/tdav_codec_ilbc.c +++ /dev/null @@ -1,256 +0,0 @@ -/*
-* Copyright (C) 2009-2010 Mamadou Diop.
-*
-* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
-*
-* This file is part of Open Source Doubango Framework.
-*
-* DOUBANGO is free software: you can redistribute it and/or modify
-* it under the terms of the GNU General Public License as published by
-* the Free Software Foundation, either version 3 of the License, or
-* (at your option) any later version.
-*
-* DOUBANGO is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with DOUBANGO.
-*
-*/
-
-/**@file tdav_codec_ilbc.c
- * @brief iLBC codec
- *
- * @author Mamadou Diop <diopmamadou(at)doubango.org>
- *
- * @date Created: Sat Nov 8 16:54:58 2009 mdiop
- */
-#include "tinydav/codecs/ilbc/tdav_codec_ilbc.h"
-
-#if HAVE_ILBC
-
-#include "tsk_memory.h"
-#include "tsk_debug.h"
-
-#define TDAV_ILBC_MODE 20
-
-/* ============ iLBC Plugin interface ================= */
-
-#define tdav_codec_ilbc_fmtp_set tsk_null
-
-int tdav_codec_ilbc_open(tmedia_codec_t* self)
-{
- tdav_codec_ilbc_t* ilbc = (tdav_codec_ilbc_t*)self;
-
- initEncode(&ilbc->encoder, TDAV_ILBC_MODE);
- initDecode(&ilbc->decoder, TDAV_ILBC_MODE, tsk_true/* Enhancer */);
-
- return 0;
-}
-
-int tdav_codec_ilbc_close(tmedia_codec_t* self)
-{
- tdav_codec_ilbc_t* ilbc = (tdav_codec_ilbc_t*)self;
-
- //ilbc->encoder = {0};
- //ilbc->decoder = {0};
-
- return 0;
-}
-
-tsk_size_t tdav_codec_ilbc_encode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size)
-{
- tdav_codec_ilbc_t* ilbc = (tdav_codec_ilbc_t*)self;
- int k;
-
- if(!self || !in_data || !in_size || !out_data){
- TSK_DEBUG_ERROR("Invalid parameter");
- return 0;
- }
-
- /* convert signal to float */
- for(k=0; k<ilbc->encoder.blockl; k++){
- ilbc->encblock[k] = (float)((short*)in_data)[k];
- }
-
- /* allocate new buffer if needed */
- if((int)*out_max_size <ilbc->encoder.no_of_bytes){
- if(!(*out_data = tsk_realloc(*out_data, ilbc->encoder.no_of_bytes))){
- TSK_DEBUG_ERROR("Failed to allocate new buffer");
- *out_max_size = 0;
- return 0;
- }
- *out_max_size = ilbc->encoder.no_of_bytes;
- }
-
- /* do the actual encoding */
- iLBC_encode(*out_data, ilbc->encblock, &ilbc->encoder);
-
- return ilbc->encoder.no_of_bytes;
-}
-
-tsk_size_t tdav_codec_ilbc_decode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size, const tsk_object_t* proto_hdr)
-{
- int blocks, i, k, block_size;
- float dtmp;
- tsk_size_t out_size;
- tdav_codec_ilbc_t* ilbc = (tdav_codec_ilbc_t*)self;
-
- if(!self || !in_data || !in_size || !out_data){
- TSK_DEBUG_ERROR("Invalid parameter");
- return 0;
- }
-
- if((in_size % NO_OF_BYTES_20MS) == 0){
- /* Using 20ms mode */
- blocks = (in_size/NO_OF_BYTES_20MS);
- out_size = (BLOCKL_20MS * blocks) * sizeof(short);
- block_size = out_size/blocks;
- if(ilbc->decoder.mode != 20){
- initDecode(&ilbc->decoder, 20, tsk_true/* Enhancer */);
- }
- }
- else if((in_size % NO_OF_BYTES_30MS) == 0){
- /* Using 30ms mode */
- blocks = (in_size/NO_OF_BYTES_30MS);
- out_size = (BLOCKL_30MS * blocks) * sizeof(short);
- block_size = out_size/blocks;
- if(ilbc->decoder.mode != 30){
- initDecode(&ilbc->decoder, 30, tsk_true/* Enhancer */);
- }
- }
- else{
- TSK_DEBUG_ERROR("Invalid iLBC mode");
- return 0;
- }
-
- /* allocate new buffer if needed */
- if(*out_max_size<out_size){
- if(!(*out_data = tsk_realloc(*out_data, out_size))){
- TSK_DEBUG_ERROR("Failed to allocate new buffer");
- *out_max_size = 0;
- return 0;
- }
- *out_max_size = out_size;
- }
-
- for(i = 0; i<blocks; i++){
- iLBC_decode(ilbc->decblock, &((uint8_t*)in_data)[i*block_size], &ilbc->decoder, 1/* Normal */);
-
- /* convert to short */
- for(k=0; k<ilbc->decoder.blockl; k++){
- dtmp=ilbc->decblock[k];
-
- if(dtmp<MIN_SAMPLE){
- dtmp = MIN_SAMPLE;
- }
- else if(dtmp>MAX_SAMPLE){
- dtmp = MAX_SAMPLE;
- }
-
- ((short*)*out_data)[(i*block_size) + k] = ((short) dtmp);
- }
- }
-
- return out_size;
-}
-
-char* tdav_codec_ilbc_fmtp_get(const tmedia_codec_t* codec)
-{
- char* fmtp = tsk_null;
- tsk_sprintf(&fmtp, "mode=%d", TDAV_ILBC_MODE);
- return fmtp;
-}
-
-tsk_bool_t tdav_codec_ilbc_fmtp_match(const tmedia_codec_t* codec, const char* fmtp)
-{ /* RFC 3952 - 5. Mapping To SDP Parameters
-
- The offer contains the preferred mode of the offerer. The answerer
- may agree to that mode by including the same mode in the answer, or
- may include a different mode. The resulting mode used by both
- parties SHALL be the lower of the bandwidth modes in the offer and
- answer.
-
- That is, an offer of "mode=20" receiving an answer of "mode=30" will
- result in "mode=30" being used by both participants. Similarly, an
- offer of "mode=30" and an answer of "mode=20" will result in
- "mode=30" being used by both participants.
-
- This is important when one end point utilizes a bandwidth constrained
- link (e.g., 28.8k modem link or slower), where only the lower frame
- size will work.
- */
- return tsk_true; // FIXME
-}
-
-
-//
-// iLBC Plugin definition
-//
-
-/* constructor */
-static tsk_object_t* tdav_codec_ilbc_ctor(tsk_object_t * self, va_list * app)
-{
- tdav_codec_ilbc_t *ilbc = self;
- if(ilbc){
- /* init base: called by tmedia_codec_create() */
- /* init self */
- }
- return self;
-}
-/* destructor */
-static tsk_object_t* tdav_codec_ilbc_dtor(tsk_object_t * self)
-{
- tdav_codec_ilbc_t *ilbc = self;
- if(ilbc){
- /* deinit base */
- tmedia_codec_audio_deinit(ilbc);
- /* deinit self */
- //ilbc->encoder = {0};
- //ilbc->decoder = {0};
- }
-
- return self;
-}
-/* object definition */
-static const tsk_object_def_t tdav_codec_ilbc_def_s =
-{
- sizeof(tdav_codec_ilbc_t),
- tdav_codec_ilbc_ctor,
- tdav_codec_ilbc_dtor,
- tmedia_codec_cmp,
-};
-/* plugin definition*/
-static const tmedia_codec_plugin_def_t tdav_codec_ilbc_plugin_def_s =
-{
- &tdav_codec_ilbc_def_s,
-
- tmedia_audio,
- "iLBC",
- "iLBC codec",
- TMEDIA_CODEC_FORMAT_ILBC,
- tsk_true,
- 8000, // rate
-
- { /* audio */
- 1, // channels
- 20 // ptime
- },
-
- /* video */
- {0},
-
- tdav_codec_ilbc_open,
- tdav_codec_ilbc_close,
- tdav_codec_ilbc_encode,
- tdav_codec_ilbc_decode,
- tdav_codec_ilbc_fmtp_match,
- tdav_codec_ilbc_fmtp_get,
- tdav_codec_ilbc_fmtp_set
-};
-const tmedia_codec_plugin_def_t *tdav_codec_ilbc_plugin_def_t = &tdav_codec_ilbc_plugin_def_s;
-
-
-#endif /* HAVE_ILBC */
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