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-rw-r--r--demux/demux_mkv.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/demux/demux_mkv.c b/demux/demux_mkv.c
index d3e12f7190..a73c594371 100644
--- a/demux/demux_mkv.c
+++ b/demux/demux_mkv.c
@@ -1587,6 +1587,12 @@ static int demux_mkv_open_audio(demuxer_t *demuxer, mkv_track_t *track)
goto error;
}
+ // Some files have broken default DefaultDuration set, which will lead to
+ // audio packets with incorrect timestamps. This follows FFmpeg commit
+ // 6158a3b, sample see FFmpeg ticket 2508.
+ if (sh_a->samplerate == 8000 && strcmp(track->codec_id, MKV_A_AC3) == 0)
+ track->default_duration = 0;
+
mp_set_audio_codec_from_tag(sh_a);
return 0;