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Write the actual mp3 frame size when muxing into caf if available.

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Fixes ticket #3648.
This commit is contained in:
Carl Eugen Hoyos 2014-05-26 19:06:23 +02:00 committed by Michael Niedermayer
parent 2db89765f3
commit 2d56f0d054
1 changed files with 5 additions and 1 deletions
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6
libavformat/cafenc.c
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@ -107,6 +107,7 @@ static int caf_write_header(AVFormatContext *s)
AVDictionaryEntry *t = NULL;
unsigned int codec_tag = ff_codec_get_tag(ff_codec_caf_tags, enc->codec_id);
int64_t chunk_size = 0;
int frame_size = enc->frame_size;
if (s->nb_streams != 1) {
av_log(s, AV_LOG_ERROR, "CAF files have exactly one stream\n");
@ -144,6 +145,9 @@ static int caf_write_header(AVFormatContext *s)
return AVERROR_INVALIDDATA;
}
if (enc->codec_id != AV_CODEC_ID_MP3 || frame_size != 576)
frame_size = samples_per_packet(enc->codec_id, enc->channels);
ffio_wfourcc(pb, "caff"); //< mFileType
avio_wb16(pb, 1); //< mFileVersion
avio_wb16(pb, 0); //< mFileFlags
@ -154,7 +158,7 @@ static int caf_write_header(AVFormatContext *s)
avio_wl32(pb, codec_tag); //< mFormatID
avio_wb32(pb, codec_flags(enc->codec_id)); //< mFormatFlags
avio_wb32(pb, enc->block_align); //< mBytesPerPacket
avio_wb32(pb, samples_per_packet(enc->codec_id, enc->channels)); //< mFramesPerPacket
avio_wb32(pb, frame_size); //< mFramesPerPacket
avio_wb32(pb, enc->channels); //< mChannelsPerFrame
avio_wb32(pb, av_get_bits_per_sample(enc->codec_id)); //< mBitsPerChannel