diff options
| author | James Almer <jamrial@gmail.com> | 2016-10-13 14:22:07 -0300 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2016-10-13 14:22:07 -0300 |
| commit | 1273bc6d26c856470381649cf1213217eb4f516a (patch) | |
| tree | f53cf2935593759ec88caf4b83b33058eb30112d /libavformat/matroskadec.c | |
| parent | 04b0792e4a7ac2866d269f9a1a921385ad410964 (diff) | |
avformat/matroskadec: workaround the field_order bug in the Matroska muxer
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavformat/matroskadec.c')
| -rw-r--r-- | libavformat/matroskadec.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index a94398bd82..acf1ccb496 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -1752,8 +1752,15 @@ static int matroska_parse_flac(AVFormatContext *s, return 0; } -static int mkv_field_order(int64_t field_order) +static int mkv_field_order(MatroskaDemuxContext *matroska, int64_t field_order) { + int major, minor, micro, bttb = 0; + + /* workaround a bug in our Matroska muxer, introduced in version 57.36 alongside + * this function, and fixed in 57.52 */ + if (sscanf(matroska->muxingapp, "Lavf%d.%d.%d", &major, &minor, µ) == 3) + bttb = (major == 57 && minor >= 36 && minor <= 51 && micro >= 100); + switch (field_order) { case MATROSKA_VIDEO_FIELDORDER_PROGRESSIVE: return AV_FIELD_PROGRESSIVE; @@ -1764,9 +1771,9 @@ static int mkv_field_order(int64_t field_order) case MATROSKA_VIDEO_FIELDORDER_BB: return AV_FIELD_BB; case MATROSKA_VIDEO_FIELDORDER_BT: - return AV_FIELD_BT; + return bttb ? AV_FIELD_TB : AV_FIELD_BT; case MATROSKA_VIDEO_FIELDORDER_TB: - return AV_FIELD_TB; + return bttb ? AV_FIELD_BT : AV_FIELD_TB; default: return AV_FIELD_UNKNOWN; } @@ -2282,7 +2289,7 @@ static int matroska_parse_tracks(AVFormatContext *s) st->codecpar->height = track->video.pixel_height; if (track->video.interlaced == MATROSKA_VIDEO_INTERLACE_FLAG_INTERLACED) - st->codecpar->field_order = mkv_field_order(track->video.field_order); + st->codecpar->field_order = mkv_field_order(matroska, track->video.field_order); else if (track->video.interlaced == MATROSKA_VIDEO_INTERLACE_FLAG_PROGRESSIVE) st->codecpar->field_order = AV_FIELD_PROGRESSIVE; |