251 lines
6.1 KiB
C
251 lines
6.1 KiB
C
/*
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* Copyright (C) 2010-2011 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with DOUBANGO.
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*
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*/
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/**@file tdav_codec_bv16.c
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* @brief BroadVoice16 codec
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* The payloader/depayloader follow RFC 4298
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* @author Mamadou Diop <diopmamadou(at)doubango.org>
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*
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*/
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#include "tinydav/codecs/bv/tdav_codec_bv16.h"
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#if HAVE_BV16
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#if defined(_MSC_VER)
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# pragma comment(lib, "..\\thirdparties\\win32\\lib\\BroadVoice16\\libbv16.a")
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#endif
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#include "tsk_memory.h"
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#include "tsk_debug.h"
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#include "typedef.h"
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#include "bvcommon.h"
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#include "bv16cnst.h"
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#include "bv16strct.h"
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#include "bv16.h"
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#include "utility.h"
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#if G192BITSTREAM
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#include "g192.h"
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#else
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#include "bitpack.h"
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#endif
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#include "memutil.h"
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/* RFC 4298 - 3.1. BroadVoice16 Bit Stream Definition */
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#define TDAV_BV16_FRAME_SIZE 10
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#define FRSZ_IN_U8 (FRSZ*2)
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/* ============ BV16 Plugin interface ================= */
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#define tdav_codec_bv16_sdp_att_get tsk_null
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#define tdav_codec_bv16_fmtp_set tsk_null
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static int sizestate = sizeof(struct BV16_Encoder_State);
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static int sizebitstream = sizeof(struct BV16_Bit_Stream);
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int tdav_codec_bv16_open(tmedia_codec_t* self)
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{
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tdav_codec_bv16_t* bv16 = (tdav_codec_bv16_t*)self;
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if(!bv16->encoder.state){
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bv16->encoder.state = allocWord16(0, sizestate/2-1);
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Reset_BV16_Encoder((struct BV16_Encoder_State*)bv16->encoder.state);
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}
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if(!bv16->encoder.bs){
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bv16->encoder.bs = allocWord16(0, sizebitstream/2-1);
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}
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if(!bv16->encoder.x){
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bv16->encoder.x = allocWord16(0, FRSZ-1);
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}
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if(!bv16->decoder.state){
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bv16->decoder.state = allocWord16(0, sizestate/2-1);
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Reset_BV16_Decoder((struct BV16_Decoder_State*)bv16->decoder.state);
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}
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if(!bv16->decoder.bs){
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bv16->decoder.bs = allocWord16(0, sizebitstream/2-1);
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}
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if(!bv16->decoder.x){
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bv16->decoder.x = allocWord16(0, FRSZ-1);
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}
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return 0;
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}
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int tdav_codec_bv16_close(tmedia_codec_t* self)
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{
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tdav_codec_bv16_t* bv16 = (tdav_codec_bv16_t*)self;
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if(bv16->encoder.state){
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deallocWord16(bv16->encoder.state, 0, sizestate/2-1);
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bv16->encoder.state = tsk_null;
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}
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if(bv16->encoder.bs){
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deallocWord16(bv16->encoder.bs, 0, sizebitstream/2-1);
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bv16->encoder.bs = tsk_null;
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}
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if(bv16->encoder.x){
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deallocWord16(bv16->encoder.x, 0, FRSZ-1);
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bv16->encoder.x = tsk_null;
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}
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if(bv16->decoder.state){
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deallocWord16(bv16->decoder.state, 0, sizestate/2-1);
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bv16->decoder.state = tsk_null;
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}
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if(bv16->encoder.bs){
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deallocWord16(bv16->decoder.bs, 0, sizebitstream/2-1);
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bv16->decoder.bs = tsk_null;
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}
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if(bv16->decoder.x){
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deallocWord16(bv16->decoder.x, 0, FRSZ-1);
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bv16->decoder.x = tsk_null;
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}
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return 0;
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}
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tsk_size_t tdav_codec_bv16_encode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size)
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{
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//tsk_size_t out_size = 0;
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tdav_codec_bv16_t* bv16 = (tdav_codec_bv16_t*)self;
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if(!self || !in_data || !in_size || !out_data){
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TSK_DEBUG_ERROR("Invalid parameter");
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return 0;
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}
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return 0;
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}
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tsk_size_t tdav_codec_bv16_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)
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{
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tsk_size_t out_size = 0;
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int i;
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tdav_codec_bv16_t* bv16 = (tdav_codec_bv16_t*)self;
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uint8_t mama[600];
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if(!self || !in_data || !in_size || !out_data || (in_size % TDAV_BV16_FRAME_SIZE)){
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TSK_DEBUG_ERROR("Invalid parameter");
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return 0;
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}
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for(i=0; i<(int)in_size; i+=TDAV_BV16_FRAME_SIZE){
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BV16_BitUnPack(mama, (struct BV16_Bit_Stream*)bv16->decoder.bs);
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//BV16_BitUnPack(&((UWord8 *)in_data)[i], (struct BV16_Bit_Stream*)bv16->decoder.bs);
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BV16_Decode((struct BV16_Bit_Stream*)bv16->decoder.bs, (struct BV16_Decoder_State*)bv16->decoder.state, bv16->decoder.x);
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if(*out_max_size<(out_size + FRSZ_IN_U8)){
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if(!(*out_data = tsk_realloc(*out_data, (out_size + FRSZ_IN_U8)))){
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TSK_DEBUG_ERROR("Failed to allocate new buffer");
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*out_max_size = 0;
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return 0;
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}
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*out_max_size = (out_size + FRSZ_IN_U8);
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}
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memcpy(&((uint8_t*)* out_data)[out_size], bv16->decoder.x, FRSZ_IN_U8);
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out_size += FRSZ_IN_U8;
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}
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return out_size;
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}
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tsk_bool_t tdav_codec_bv16_sdp_att_match(const tmedia_codec_t* codec, const char* att_name, const char* att_value)
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{ /* always match */
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return tsk_true;
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}
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//
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// BV16 Plugin definition
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//
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/* constructor */
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static tsk_object_t* tdav_codec_bv16_ctor(tsk_object_t * self, va_list * app)
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{
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tdav_codec_bv16_t *bv16 = self;
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if(bv16){
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/* init base: called by tmedia_codec_create() */
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/* init self */
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}
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return self;
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}
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/* destructor */
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static tsk_object_t* tdav_codec_bv16_dtor(tsk_object_t * self)
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{
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tdav_codec_bv16_t *bv16 = self;
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if(bv16){
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/* deinit base */
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tmedia_codec_audio_deinit(bv16);
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/* deinit self */
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}
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return self;
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}
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/* object definition */
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static const tsk_object_def_t tdav_codec_bv16_def_s =
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{
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sizeof(tdav_codec_bv16_t),
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tdav_codec_bv16_ctor,
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tdav_codec_bv16_dtor,
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tmedia_codec_cmp,
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};
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/* plugin definition*/
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static const tmedia_codec_plugin_def_t tdav_codec_bv16_plugin_def_s =
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{
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&tdav_codec_bv16_def_s,
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tmedia_audio,
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tmedia_codec_id_bv16,
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"BV16",
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"BroadVoice16 Rate",
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TMEDIA_CODEC_FORMAT_BV16,
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tsk_true,
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8000, // rate
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{ /* audio */
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1, // channels
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0 // ptime @deprecated
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},
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/* video */
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{0},
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tdav_codec_bv16_open,
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tdav_codec_bv16_close,
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tdav_codec_bv16_encode,
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tdav_codec_bv16_decode,
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tdav_codec_bv16_sdp_att_match,
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tdav_codec_bv16_sdp_att_get,
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tdav_codec_bv16_fmtp_set
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};
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const tmedia_codec_plugin_def_t *tdav_codec_bv16_plugin_def_t = &tdav_codec_bv16_plugin_def_s;
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#endif /* HAVE_BV16 */
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