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Add support for MS-GSM codec
Originally committed as revision 8039 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -71,6 +71,7 @@ version <next>
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- Theora encoding via libtheora
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- BMP encoder
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- WMA encoder
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- GSM-MS encoder and decoder
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version 0.4.9-pre1:
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@ -133,6 +133,7 @@ Codecs:
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jpeg_ls.c Kostya Shishkov
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kmvc.c Kostya Shishkov
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lcl.c Roberto Togni
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libgsm.c Michel Bardiaux
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loco.c Kostya Shishkov
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lzo.h, lzo.c Reimar Doeffinger
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mdec.c Michael Niedermayer
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@ -168,6 +168,7 @@ void avcodec_register_all(void)
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REGISTER_DECODER(IMC, imc);
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REGISTER_DECODER(LIBA52, liba52);
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REGISTER_ENCDEC (LIBGSM, libgsm);
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REGISTER_ENCDEC (LIBGSM_MS, libgsm_ms);
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REGISTER_ENCODER(LIBTHEORA, libtheora);
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REGISTER_DECODER(MACE3, mace3);
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REGISTER_DECODER(MACE6, mace6);
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@ -37,8 +37,8 @@ extern "C" {
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#define AV_STRINGIFY(s) AV_TOSTRING(s)
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#define AV_TOSTRING(s) #s
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#define LIBAVCODEC_VERSION_INT ((51<<16)+(33<<8)+0)
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#define LIBAVCODEC_VERSION 51.33.0
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#define LIBAVCODEC_VERSION_INT ((51<<16)+(34<<8)+0)
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#define LIBAVCODEC_VERSION 51.34.0
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#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
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#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
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@ -227,7 +227,7 @@ enum CodecID {
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CODEC_ID_SHORTEN,
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CODEC_ID_ALAC,
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CODEC_ID_WESTWOOD_SND1,
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CODEC_ID_GSM,
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CODEC_ID_GSM, /* As in Berlin toast format */
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CODEC_ID_QDM2,
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CODEC_ID_COOK,
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CODEC_ID_TRUESPEECH,
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@ -239,6 +239,7 @@ enum CodecID {
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CODEC_ID_IMC,
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CODEC_ID_MUSEPACK7,
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CODEC_ID_MLP,
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CODEC_ID_GSM_MS, /* As found in WAV */
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/* subtitle codecs */
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CODEC_ID_DVD_SUBTITLE= 0x17000,
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@ -2165,6 +2166,7 @@ extern AVCodec h264_encoder;
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extern AVCodec huffyuv_encoder;
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extern AVCodec jpegls_encoder;
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extern AVCodec libgsm_encoder;
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extern AVCodec libgsm_ms_encoder;
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extern AVCodec libtheora_encoder;
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extern AVCodec ljpeg_encoder;
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extern AVCodec mdec_encoder;
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@ -2242,6 +2244,7 @@ extern AVCodec interplay_dpcm_decoder;
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extern AVCodec interplay_video_decoder;
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extern AVCodec kmvc_decoder;
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extern AVCodec libgsm_decoder;
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extern AVCodec libgsm_ms_decoder;
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extern AVCodec loco_decoder;
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extern AVCodec mace3_decoder;
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extern AVCodec mace6_decoder;
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@ -1,6 +1,7 @@
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/*
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* Interface to libgsm for gsm encoding/decoding
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* Copyright (c) 2005 Alban Bedel <albeu@free.fr>
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* Copyright (c) 2006, 2007 Michel Bardiaux <mbardiaux@mediaxim.be>
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*
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* This file is part of FFmpeg.
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*
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@ -24,22 +25,35 @@
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* Interface to libgsm for gsm encoding/decoding
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*/
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// The idiosyncrasies of GSM-in-WAV are explained at http://kbs.cs.tu-berlin.de/~jutta/toast.html
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#include "avcodec.h"
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#include <gsm.h>
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// gsm.h miss some essential constants
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#define GSM_BLOCK_SIZE 33
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#define GSM_MS_BLOCK_SIZE 65
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#define GSM_FRAME_SIZE 160
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static int libgsm_init(AVCodecContext *avctx) {
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if (avctx->channels > 1 || avctx->sample_rate != 8000)
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if (avctx->channels > 1 || avctx->sample_rate != 8000 || avctx->bit_rate != 13000)
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return -1;
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avctx->frame_size = GSM_FRAME_SIZE;
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avctx->block_align = GSM_BLOCK_SIZE;
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avctx->priv_data = gsm_create();
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switch(avctx->codec_id) {
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case CODEC_ID_GSM:
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avctx->frame_size = GSM_FRAME_SIZE;
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avctx->block_align = GSM_BLOCK_SIZE;
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break;
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case CODEC_ID_GSM_MS: {
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int one = 1;
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gsm_option(avctx->priv_data, GSM_OPT_WAV49, &one);
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avctx->frame_size = 2*GSM_FRAME_SIZE;
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avctx->block_align = GSM_MS_BLOCK_SIZE;
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}
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}
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avctx->coded_frame= avcodec_alloc_frame();
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avctx->coded_frame->key_frame= 1;
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@ -55,11 +69,17 @@ static int libgsm_close(AVCodecContext *avctx) {
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static int libgsm_encode_frame(AVCodecContext *avctx,
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unsigned char *frame, int buf_size, void *data) {
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// we need a full block
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if(buf_size < GSM_BLOCK_SIZE) return 0;
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if(buf_size < avctx->block_align) return 0;
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gsm_encode(avctx->priv_data,data,frame);
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return GSM_BLOCK_SIZE;
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switch(avctx->codec_id) {
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case CODEC_ID_GSM:
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gsm_encode(avctx->priv_data,data,frame);
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break;
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case CODEC_ID_GSM_MS:
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gsm_encode(avctx->priv_data,data,frame);
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gsm_encode(avctx->priv_data,((short*)data)+GSM_FRAME_SIZE,frame+32);
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}
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return avctx->block_align;
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}
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@ -73,16 +93,33 @@ AVCodec libgsm_encoder = {
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libgsm_close,
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};
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AVCodec libgsm_ms_encoder = {
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"gsm",
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CODEC_TYPE_AUDIO,
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CODEC_ID_GSM_MS,
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0,
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libgsm_init,
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libgsm_encode_frame,
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libgsm_close,
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};
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static int libgsm_decode_frame(AVCodecContext *avctx,
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void *data, int *data_size,
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uint8_t *buf, int buf_size) {
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if(buf_size < GSM_BLOCK_SIZE) return 0;
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if(buf_size < avctx->block_align) return 0;
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if(gsm_decode(avctx->priv_data,buf,data)) return -1;
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*data_size = GSM_FRAME_SIZE*2;
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return GSM_BLOCK_SIZE;
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switch(avctx->codec_id) {
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case CODEC_ID_GSM:
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if(gsm_decode(avctx->priv_data,buf,data)) return -1;
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*data_size = GSM_FRAME_SIZE*sizeof(int16_t);
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break;
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case CODEC_ID_GSM_MS:
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if(gsm_decode(avctx->priv_data,buf,data) ||
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gsm_decode(avctx->priv_data,buf+33,((int16_t*)data)+GSM_FRAME_SIZE)) return -1;
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*data_size = GSM_FRAME_SIZE*sizeof(int16_t)*2;
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}
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return avctx->block_align;
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}
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AVCodec libgsm_decoder = {
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@ -95,3 +132,14 @@ AVCodec libgsm_decoder = {
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libgsm_close,
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libgsm_decode_frame,
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};
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AVCodec libgsm_ms_decoder = {
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"gsm_ms",
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CODEC_TYPE_AUDIO,
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CODEC_ID_GSM_MS,
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0,
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libgsm_init,
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NULL,
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libgsm_close,
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libgsm_decode_frame,
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};
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@ -198,6 +198,7 @@ const AVCodecTag codec_wav_tags[] = {
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{ CODEC_ID_TRUESPEECH, 0x22 },
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{ CODEC_ID_FLAC, 0xF1AC },
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{ CODEC_ID_IMC, 0x401 },
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{ CODEC_ID_GSM_MS, 0x31 },
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/* FIXME: All of the IDs below are not 16 bit and thus illegal. */
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// for NuppelVideo (nuv.c)
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@ -305,7 +306,7 @@ int put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
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enc->codec_id == CODEC_ID_PCM_ALAW ||
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enc->codec_id == CODEC_ID_PCM_MULAW) {
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bps = 8;
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} else if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3) {
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} else if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) {
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bps = 0;
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} else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV || enc->codec_id == CODEC_ID_ADPCM_MS || enc->codec_id == CODEC_ID_ADPCM_G726 || enc->codec_id == CODEC_ID_ADPCM_YAMAHA) { //
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bps = 4;
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@ -317,7 +318,7 @@ int put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
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bps = 16;
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}
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if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3) {
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if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) {
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blkalign = enc->frame_size; //this is wrong, but seems many demuxers dont work if this is set correctly
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//blkalign = 144 * enc->bit_rate/enc->sample_rate;
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} else if (enc->codec_id == CODEC_ID_ADPCM_G726) { //
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@ -356,6 +357,10 @@ int put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
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put_le16(pb, 16); /* fwHeadFlags */
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put_le32(pb, 0); /* dwPTSLow */
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put_le32(pb, 0); /* dwPTSHigh */
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} else if (enc->codec_id == CODEC_ID_GSM_MS) {
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put_le16(pb, 2); /* wav_extra_size */
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hdrsize += 2;
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put_le16(pb, enc->frame_size); /* wSamplesPerBlock */
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} else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
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put_le16(pb, 2); /* wav_extra_size */
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hdrsize += 2;
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