mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
Split up the AIFF muxer and demuxer into separate files.
Originally committed as revision 20234 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles
parent
686884da9d
commit
47b47bbdaf
@ -14,7 +14,7 @@ OBJS-$(CONFIG_AC3_MUXER) += raw.o
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OBJS-$(CONFIG_ADTS_MUXER) += adtsenc.o
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OBJS-$(CONFIG_ADTS_MUXER) += adtsenc.o
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OBJS-$(CONFIG_AEA_DEMUXER) += aea.o
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OBJS-$(CONFIG_AEA_DEMUXER) += aea.o
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OBJS-$(CONFIG_AIFF_DEMUXER) += aiff.o riff.o raw.o
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OBJS-$(CONFIG_AIFF_DEMUXER) += aiff.o riff.o raw.o
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OBJS-$(CONFIG_AIFF_MUXER) += aiff.o riff.o
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OBJS-$(CONFIG_AIFF_MUXER) += aiffenc.o riff.o
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OBJS-$(CONFIG_AMR_DEMUXER) += amr.o
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OBJS-$(CONFIG_AMR_DEMUXER) += amr.o
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OBJS-$(CONFIG_AMR_MUXER) += amr.o
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OBJS-$(CONFIG_AMR_MUXER) += amr.o
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OBJS-$(CONFIG_APC_DEMUXER) += apc.o
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OBJS-$(CONFIG_APC_DEMUXER) += apc.o
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@ -1,5 +1,5 @@
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/*
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/*
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* AIFF/AIFF-C muxer and demuxer
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* AIFF/AIFF-C demuxer
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* Copyright (c) 2006 Patrick Guimond
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* Copyright (c) 2006 Patrick Guimond
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*
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*
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* This file is part of FFmpeg.
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* This file is part of FFmpeg.
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@ -22,26 +22,7 @@
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#include "libavutil/intfloat_readwrite.h"
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#include "libavutil/intfloat_readwrite.h"
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#include "avformat.h"
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#include "avformat.h"
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#include "raw.h"
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#include "raw.h"
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#include "riff.h"
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#include "aiff.h"
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static const AVCodecTag codec_aiff_tags[] = {
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{ CODEC_ID_PCM_S16BE, MKTAG('N','O','N','E') },
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{ CODEC_ID_PCM_S8, MKTAG('N','O','N','E') },
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{ CODEC_ID_PCM_S24BE, MKTAG('N','O','N','E') },
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{ CODEC_ID_PCM_S32BE, MKTAG('N','O','N','E') },
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{ CODEC_ID_PCM_F32BE, MKTAG('f','l','3','2') },
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{ CODEC_ID_PCM_F64BE, MKTAG('f','l','6','4') },
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{ CODEC_ID_PCM_ALAW, MKTAG('a','l','a','w') },
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{ CODEC_ID_PCM_MULAW, MKTAG('u','l','a','w') },
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{ CODEC_ID_MACE3, MKTAG('M','A','C','3') },
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{ CODEC_ID_MACE6, MKTAG('M','A','C','6') },
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{ CODEC_ID_GSM, MKTAG('G','S','M',' ') },
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{ CODEC_ID_ADPCM_G726, MKTAG('G','7','2','6') },
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{ CODEC_ID_PCM_S16LE, MKTAG('s','o','w','t') },
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{ CODEC_ID_ADPCM_IMA_QT, MKTAG('i','m','a','4') },
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{ CODEC_ID_QDM2, MKTAG('Q','D','M','2') },
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{ 0, 0 },
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};
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#define AIFF 0
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#define AIFF 0
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#define AIFF_C_VERSION1 0xA2805140
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#define AIFF_C_VERSION1 0xA2805140
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@ -123,7 +104,7 @@ static unsigned int get_aiff_header(ByteIOContext *pb, AVCodecContext *codec,
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/* Got an AIFF-C? */
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/* Got an AIFF-C? */
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if (version == AIFF_C_VERSION1) {
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if (version == AIFF_C_VERSION1) {
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codec->codec_tag = get_le32(pb);
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codec->codec_tag = get_le32(pb);
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codec->codec_id = ff_codec_get_id(codec_aiff_tags, codec->codec_tag);
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codec->codec_id = ff_codec_get_id(ff_codec_aiff_tags, codec->codec_tag);
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switch (codec->codec_id) {
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switch (codec->codec_id) {
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case CODEC_ID_PCM_S16BE:
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case CODEC_ID_PCM_S16BE:
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@ -171,131 +152,6 @@ static unsigned int get_aiff_header(ByteIOContext *pb, AVCodecContext *codec,
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return num_frames;
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return num_frames;
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}
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}
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#if CONFIG_AIFF_MUXER
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typedef struct {
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int64_t form;
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int64_t frames;
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int64_t ssnd;
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} AIFFOutputContext;
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static int aiff_write_header(AVFormatContext *s)
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{
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AIFFOutputContext *aiff = s->priv_data;
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ByteIOContext *pb = s->pb;
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AVCodecContext *enc = s->streams[0]->codec;
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AVExtFloat sample_rate;
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int aifc = 0;
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/* First verify if format is ok */
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if (!enc->codec_tag)
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return -1;
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if (enc->codec_tag != MKTAG('N','O','N','E'))
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aifc = 1;
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/* FORM AIFF header */
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put_tag(pb, "FORM");
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aiff->form = url_ftell(pb);
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put_be32(pb, 0); /* file length */
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put_tag(pb, aifc ? "AIFC" : "AIFF");
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if (aifc) { // compressed audio
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enc->bits_per_coded_sample = 16;
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if (!enc->block_align) {
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av_log(s, AV_LOG_ERROR, "block align not set\n");
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return -1;
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}
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/* Version chunk */
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put_tag(pb, "FVER");
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put_be32(pb, 4);
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put_be32(pb, 0xA2805140);
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}
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/* Common chunk */
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put_tag(pb, "COMM");
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put_be32(pb, aifc ? 24 : 18); /* size */
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put_be16(pb, enc->channels); /* Number of channels */
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aiff->frames = url_ftell(pb);
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put_be32(pb, 0); /* Number of frames */
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if (!enc->bits_per_coded_sample)
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enc->bits_per_coded_sample = av_get_bits_per_sample(enc->codec_id);
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if (!enc->bits_per_coded_sample) {
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av_log(s, AV_LOG_ERROR, "could not compute bits per sample\n");
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return -1;
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}
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if (!enc->block_align)
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enc->block_align = (enc->bits_per_coded_sample * enc->channels) >> 3;
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put_be16(pb, enc->bits_per_coded_sample); /* Sample size */
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sample_rate = av_dbl2ext((double)enc->sample_rate);
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put_buffer(pb, (uint8_t*)&sample_rate, sizeof(sample_rate));
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if (aifc) {
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put_le32(pb, enc->codec_tag);
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put_be16(pb, 0);
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}
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/* Sound data chunk */
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put_tag(pb, "SSND");
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aiff->ssnd = url_ftell(pb); /* Sound chunk size */
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put_be32(pb, 0); /* Sound samples data size */
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put_be32(pb, 0); /* Data offset */
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put_be32(pb, 0); /* Block-size (block align) */
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av_set_pts_info(s->streams[0], 64, 1, s->streams[0]->codec->sample_rate);
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/* Data is starting here */
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put_flush_packet(pb);
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return 0;
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}
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static int aiff_write_packet(AVFormatContext *s, AVPacket *pkt)
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{
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ByteIOContext *pb = s->pb;
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put_buffer(pb, pkt->data, pkt->size);
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return 0;
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}
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static int aiff_write_trailer(AVFormatContext *s)
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{
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ByteIOContext *pb = s->pb;
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AIFFOutputContext *aiff = s->priv_data;
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AVCodecContext *enc = s->streams[0]->codec;
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/* Chunks sizes must be even */
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int64_t file_size, end_size;
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end_size = file_size = url_ftell(pb);
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if (file_size & 1) {
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put_byte(pb, 0);
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end_size++;
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}
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if (!url_is_streamed(s->pb)) {
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/* File length */
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url_fseek(pb, aiff->form, SEEK_SET);
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put_be32(pb, file_size - aiff->form - 4);
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/* Number of sample frames */
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url_fseek(pb, aiff->frames, SEEK_SET);
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put_be32(pb, (file_size-aiff->ssnd-12)/enc->block_align);
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/* Sound Data chunk size */
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url_fseek(pb, aiff->ssnd, SEEK_SET);
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put_be32(pb, file_size - aiff->ssnd - 4);
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/* return to the end */
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url_fseek(pb, end_size, SEEK_SET);
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put_flush_packet(pb);
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}
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return 0;
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}
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#endif /* CONFIG_AIFF_MUXER */
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static int aiff_probe(AVProbeData *p)
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static int aiff_probe(AVProbeData *p)
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{
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{
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/* check file header */
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/* check file header */
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@ -446,7 +302,6 @@ static int aiff_read_packet(AVFormatContext *s,
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return 0;
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return 0;
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}
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}
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#if CONFIG_AIFF_DEMUXER
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AVInputFormat aiff_demuxer = {
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AVInputFormat aiff_demuxer = {
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"aiff",
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"aiff",
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NULL_IF_CONFIG_SMALL("Audio IFF"),
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NULL_IF_CONFIG_SMALL("Audio IFF"),
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@ -456,22 +311,5 @@ AVInputFormat aiff_demuxer = {
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aiff_read_packet,
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aiff_read_packet,
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NULL,
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NULL,
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pcm_read_seek,
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pcm_read_seek,
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.codec_tag= (const AVCodecTag* const []){codec_aiff_tags, 0},
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.codec_tag= (const AVCodecTag* const []){ff_codec_aiff_tags, 0},
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};
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};
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#endif
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#if CONFIG_AIFF_MUXER
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AVOutputFormat aiff_muxer = {
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"aiff",
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NULL_IF_CONFIG_SMALL("Audio IFF"),
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"audio/aiff",
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"aif,aiff,afc,aifc",
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sizeof(AIFFOutputContext),
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CODEC_ID_PCM_S16BE,
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CODEC_ID_NONE,
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aiff_write_header,
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aiff_write_packet,
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aiff_write_trailer,
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.codec_tag= (const AVCodecTag* const []){codec_aiff_tags, 0},
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};
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#endif
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52
libavformat/aiff.h
Normal file
52
libavformat/aiff.h
Normal file
@ -0,0 +1,52 @@
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/*
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* AIFF/AIFF-C muxer/demuxer common header
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* Copyright (c) 2006 Patrick Guimond
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file libavformat/aiff.h
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* common header for AIFF muxer and demuxer
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*/
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#ifndef AVFORMAT_AIFF_H
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#define AVFORMAT_AIFF_H
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#include "avformat.h"
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#include "riff.h"
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static const AVCodecTag ff_codec_aiff_tags[] = {
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{ CODEC_ID_PCM_S16BE, MKTAG('N','O','N','E') },
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{ CODEC_ID_PCM_S8, MKTAG('N','O','N','E') },
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{ CODEC_ID_PCM_S24BE, MKTAG('N','O','N','E') },
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{ CODEC_ID_PCM_S32BE, MKTAG('N','O','N','E') },
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{ CODEC_ID_PCM_F32BE, MKTAG('f','l','3','2') },
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{ CODEC_ID_PCM_F64BE, MKTAG('f','l','6','4') },
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{ CODEC_ID_PCM_ALAW, MKTAG('a','l','a','w') },
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{ CODEC_ID_PCM_MULAW, MKTAG('u','l','a','w') },
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{ CODEC_ID_MACE3, MKTAG('M','A','C','3') },
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{ CODEC_ID_MACE6, MKTAG('M','A','C','6') },
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{ CODEC_ID_GSM, MKTAG('G','S','M',' ') },
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{ CODEC_ID_ADPCM_G726, MKTAG('G','7','2','6') },
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{ CODEC_ID_PCM_S16LE, MKTAG('s','o','w','t') },
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{ CODEC_ID_ADPCM_IMA_QT, MKTAG('i','m','a','4') },
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{ CODEC_ID_QDM2, MKTAG('Q','D','M','2') },
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{ 0, 0 },
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};
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#endif /* AVFORMAT_AIFF_H */
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160
libavformat/aiffenc.c
Normal file
160
libavformat/aiffenc.c
Normal file
@ -0,0 +1,160 @@
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/*
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* AIFF/AIFF-C muxer
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* Copyright (c) 2006 Patrick Guimond
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*
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* This file is part of FFmpeg.
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||||||
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*
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||||||
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* FFmpeg is free software; you can redistribute it and/or
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||||||
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* modify it under the terms of the GNU Lesser General Public
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||||||
|
* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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||||||
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*
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||||||
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* FFmpeg is distributed in the hope that it will be useful,
|
||||||
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* Lesser General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Lesser General Public
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||||||
|
* License along with FFmpeg; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "avformat.h"
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#include "aiff.h"
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typedef struct {
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int64_t form;
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int64_t frames;
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int64_t ssnd;
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} AIFFOutputContext;
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static int aiff_write_header(AVFormatContext *s)
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{
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AIFFOutputContext *aiff = s->priv_data;
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ByteIOContext *pb = s->pb;
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AVCodecContext *enc = s->streams[0]->codec;
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AVExtFloat sample_rate;
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int aifc = 0;
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/* First verify if format is ok */
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if (!enc->codec_tag)
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return -1;
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if (enc->codec_tag != MKTAG('N','O','N','E'))
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aifc = 1;
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/* FORM AIFF header */
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put_tag(pb, "FORM");
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aiff->form = url_ftell(pb);
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put_be32(pb, 0); /* file length */
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put_tag(pb, aifc ? "AIFC" : "AIFF");
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if (aifc) { // compressed audio
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enc->bits_per_coded_sample = 16;
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if (!enc->block_align) {
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av_log(s, AV_LOG_ERROR, "block align not set\n");
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return -1;
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}
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/* Version chunk */
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put_tag(pb, "FVER");
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put_be32(pb, 4);
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put_be32(pb, 0xA2805140);
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}
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|
|
||||||
|
/* Common chunk */
|
||||||
|
put_tag(pb, "COMM");
|
||||||
|
put_be32(pb, aifc ? 24 : 18); /* size */
|
||||||
|
put_be16(pb, enc->channels); /* Number of channels */
|
||||||
|
|
||||||
|
aiff->frames = url_ftell(pb);
|
||||||
|
put_be32(pb, 0); /* Number of frames */
|
||||||
|
|
||||||
|
if (!enc->bits_per_coded_sample)
|
||||||
|
enc->bits_per_coded_sample = av_get_bits_per_sample(enc->codec_id);
|
||||||
|
if (!enc->bits_per_coded_sample) {
|
||||||
|
av_log(s, AV_LOG_ERROR, "could not compute bits per sample\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
if (!enc->block_align)
|
||||||
|
enc->block_align = (enc->bits_per_coded_sample * enc->channels) >> 3;
|
||||||
|
|
||||||
|
put_be16(pb, enc->bits_per_coded_sample); /* Sample size */
|
||||||
|
|
||||||
|
sample_rate = av_dbl2ext((double)enc->sample_rate);
|
||||||
|
put_buffer(pb, (uint8_t*)&sample_rate, sizeof(sample_rate));
|
||||||
|
|
||||||
|
if (aifc) {
|
||||||
|
put_le32(pb, enc->codec_tag);
|
||||||
|
put_be16(pb, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Sound data chunk */
|
||||||
|
put_tag(pb, "SSND");
|
||||||
|
aiff->ssnd = url_ftell(pb); /* Sound chunk size */
|
||||||
|
put_be32(pb, 0); /* Sound samples data size */
|
||||||
|
put_be32(pb, 0); /* Data offset */
|
||||||
|
put_be32(pb, 0); /* Block-size (block align) */
|
||||||
|
|
||||||
|
av_set_pts_info(s->streams[0], 64, 1, s->streams[0]->codec->sample_rate);
|
||||||
|
|
||||||
|
/* Data is starting here */
|
||||||
|
put_flush_packet(pb);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int aiff_write_packet(AVFormatContext *s, AVPacket *pkt)
|
||||||
|
{
|
||||||
|
ByteIOContext *pb = s->pb;
|
||||||
|
put_buffer(pb, pkt->data, pkt->size);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int aiff_write_trailer(AVFormatContext *s)
|
||||||
|
{
|
||||||
|
ByteIOContext *pb = s->pb;
|
||||||
|
AIFFOutputContext *aiff = s->priv_data;
|
||||||
|
AVCodecContext *enc = s->streams[0]->codec;
|
||||||
|
|
||||||
|
/* Chunks sizes must be even */
|
||||||
|
int64_t file_size, end_size;
|
||||||
|
end_size = file_size = url_ftell(pb);
|
||||||
|
if (file_size & 1) {
|
||||||
|
put_byte(pb, 0);
|
||||||
|
end_size++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!url_is_streamed(s->pb)) {
|
||||||
|
/* File length */
|
||||||
|
url_fseek(pb, aiff->form, SEEK_SET);
|
||||||
|
put_be32(pb, file_size - aiff->form - 4);
|
||||||
|
|
||||||
|
/* Number of sample frames */
|
||||||
|
url_fseek(pb, aiff->frames, SEEK_SET);
|
||||||
|
put_be32(pb, (file_size-aiff->ssnd-12)/enc->block_align);
|
||||||
|
|
||||||
|
/* Sound Data chunk size */
|
||||||
|
url_fseek(pb, aiff->ssnd, SEEK_SET);
|
||||||
|
put_be32(pb, file_size - aiff->ssnd - 4);
|
||||||
|
|
||||||
|
/* return to the end */
|
||||||
|
url_fseek(pb, end_size, SEEK_SET);
|
||||||
|
|
||||||
|
put_flush_packet(pb);
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
AVOutputFormat aiff_muxer = {
|
||||||
|
"aiff",
|
||||||
|
NULL_IF_CONFIG_SMALL("Audio IFF"),
|
||||||
|
"audio/aiff",
|
||||||
|
"aif,aiff,afc,aifc",
|
||||||
|
sizeof(AIFFOutputContext),
|
||||||
|
CODEC_ID_PCM_S16BE,
|
||||||
|
CODEC_ID_NONE,
|
||||||
|
aiff_write_header,
|
||||||
|
aiff_write_packet,
|
||||||
|
aiff_write_trailer,
|
||||||
|
.codec_tag= (const AVCodecTag* const []){ff_codec_aiff_tags, 0},
|
||||||
|
};
|
||||||
Loading…
Reference in New Issue
Block a user