diff options
| author | Marton Balint <cus@passwd.hu> | 2012-09-27 00:24:46 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-09-27 21:28:35 +0200 |
| commit | 13f0cd681e9308efe68802ab03e7443863b4c54f (patch) | |
| tree | dd3a0eeb73bd6c18a33ae47f63ce707077a1258c | |
| parent | 6226d104a327733ef8591148ba84ac8a6820bd04 (diff) | |
| download | ffmpeg-13f0cd681e9308efe68802ab03e7443863b4c54f.tar.gz | |
mxfdec: allow container_ul to override codec_ul if codec is A-law
Fixes some DNXHD files generated by AVID TM, where codec UL was set to A-law
meanwhile the real audio codec was PCM S16. According to SMPTE RP 224, A-law is
the default value for sound essence parameters therefore we should handle it
specially.
Signed-off-by: Marton Balint <cus@passwd.hu>
Reviewed-by: Tomas Härdin <tomas.hardin@codemill.se>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavformat/mxfdec.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 16b8c12070..a503289582 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -1536,7 +1536,8 @@ static int mxf_parse_structural_metadata(MXFContext *mxf) st->need_parsing = AVSTREAM_PARSE_HEADERS; } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) { container_ul = mxf_get_codec_ul(mxf_sound_essence_container_uls, essence_container_ul); - if (st->codec->codec_id == AV_CODEC_ID_NONE) + /* Only overwrite existing codec ID if it is unset or A-law, which is the default according to SMPTE RP 224. */ + if (st->codec->codec_id == AV_CODEC_ID_NONE || (st->codec->codec_id == AV_CODEC_ID_PCM_ALAW && container_ul->id != AV_CODEC_ID_NONE)) st->codec->codec_id = container_ul->id; st->codec->channels = descriptor->channels; st->codec->bits_per_coded_sample = descriptor->bits_per_sample; |