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Merge commit 'd6b9ce99ea384fb676561461768b8316725a4ccd'

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* commit 'd6b9ce99ea384fb676561461768b8316725a4ccd':
  flac demuxer: parse the WAVEFORMATEXTENSIBLE_CHANNEL_MASK tag

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-05-28 12:20:44 +02:00
commit 03ffaed3f0
1 changed files with 15 additions and 0 deletions
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15
libavformat/flacdec.c
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@ -136,9 +136,24 @@ static int flac_read_header(AVFormatContext *s)
}
/* process supported blocks other than STREAMINFO */
if (metadata_type == FLAC_METADATA_TYPE_VORBIS_COMMENT) {
AVDictionaryEntry *chmask;
if (ff_vorbis_comment(s, &s->metadata, buffer, metadata_size)) {
av_log(s, AV_LOG_WARNING, "error parsing VorbisComment metadata\n");
}
/* parse the channels mask if present */
chmask = av_dict_get(s->metadata, "WAVEFORMATEXTENSIBLE_CHANNEL_MASK", NULL, 0);
if (chmask) {
uint64_t mask = strtol(chmask->value, NULL, 0);
if (!mask || mask & ~0x3ffffULL) {
av_log(s, AV_LOG_WARNING,
"Invalid value of WAVEFORMATEXTENSIBLE_CHANNEL_MASK\n");
} else {
st->codec->channel_layout = mask;
av_dict_set(&s->metadata, "WAVEFORMATEXTENSIBLE_CHANNEL_MASK", NULL, 0);
}
}
}
av_freep(&buffer);
}