diff options
| author | Benoit Fouet <benoit.fouet@free.fr> | 2014-10-13 14:42:55 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-10-13 17:50:20 +0200 |
| commit | 4da7111eb8382c9fa5b464c0a62d12d497f7018a (patch) | |
| tree | 6635d31680366637eee374218aa7c0822bb3df1a | |
| parent | 0b7e5d0d75e7d8762dd04d35f8c0821736164372 (diff) | |
| download | ffmpeg-4da7111eb8382c9fa5b464c0a62d12d497f7018a.tar.gz | |
avcodec/aacdec: map LFE[0] to SCE[1] for 4.0 audio.
Fixes ticket #3930
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/aacdec.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c index 10c509be82..ef820d261f 100644 --- a/libavcodec/aacdec.c +++ b/libavcodec/aacdec.c @@ -630,6 +630,16 @@ static ChannelElement *get_che(AACContext *ac, int type, int elem_id) return ac->tag_che_map[TYPE_CPE][elem_id] = ac->che[TYPE_CPE][1]; } case 4: + /* Some streams incorrectly code 4.0 audio as + * SCE[0] CPE[0] LFE[0] + * instead of + * SCE[0] CPE[0] SCE[1]. + * If we seem to have encountered such a stream, transfer + * the SCE[1] element to the LFE[0]'s mapping */ + if (ac->tags_mapped == tags_per_config[ac->oc[1].m4ac.chan_config] - 1 && (type == TYPE_LFE || type == TYPE_SCE)) { + ac->tags_mapped++; + return ac->tag_che_map[type][elem_id] = ac->che[TYPE_SCE][1]; + } if (ac->tags_mapped == 2 && ac->oc[1].m4ac.chan_config == 4 && type == TYPE_SCE) { |