View source for Libavcodec regressions

== To be investigated issues ==

=== RMVB deadlocking ===

With threads >= 1 and libav

See https://trac.videolan.org/vlc/ticket/10493

== Open issues ==

== Closed issues ==
=== MTS regression (worked-around) ===
Possibly VLC TS demuxer does not output correct IDR information.

Whether the demuxer is wrong or not, it fails with libav, but it works with FFmpeg.

See https://trac.videolan.org/vlc/ticket/10140 and http://streams.videolan.org/issues/10140/MTS%20AVCHD%20Lite%20files%20no%20picture%20bug%20since%20v.2.1.1.MTS

=== VC1i ===
Some VC1i sample did not work in libav:
http://streams.videolan.org/issues/5887/Journey%20to%20the%20Edge%20of%20the%20Universe%20sample.mkv

=== FFv1 v1.3 support ===
See https://trac.videolan.org/vlc/ticket/9606

<span style="text-decoration: line-through">The sample here related https://trac.videolan.org/vlc/ticket/8691#no4 is now fixed [[User:J-b|jb]] ([[User talk:J-b|talk]]) 16:30, 28 December 2013 (CET)
</span>

=== Lagarith YV12 direct-rendering ===
YV12 broken in libav when using direct-rendering. Numerous reports about that.
https://forum.videolan.org/viewtopic.php?f=14&t=115983&hilit=lagarith

See https://trac.videolan.org/vlc/ticket/7375 and https://trac.videolan.org/vlc/ticket/9700

Samples here: http://streams.videolan.org/issues/7375/YV12.avi and http://streams.videolan.org/issues/7375/mechanical.cut.avi

=== Xvid Matrix ===
XVid "Bulletproof's Heavy Compression Matrix" fails in libav, works in FFmpeg.

See https://trac.videolan.org/vlc/ticket/7411 and sample here https://trac.videolan.org/vlc/raw-attachment/ticket/7411/sample.avi

Solution here: https://git.libav.org/?p=libav.git;a=commit;h=7716dd9fbbcea2700a100c995df967d5547c2eb9

=== non-SSE2 playback ===
VLC fails to play on non-SSE2 machines in libav

See the bugreport here https://trac.videolan.org/vlc/ticket/10203
and see the numerous complaints on the forum here https://forum.videolan.org/viewtopic.php?f=2&t=115952&p=393815&hilit=athlon#p393815

Solution here: https://git.libav.org/?p=libav.git;a=commit;h=51daafb02eaf96e0743a37ce95a7f5d02c1fa3c2

=== HUffYUV ===

With FFmpeg, HuffYUv is broken.
See https://trac.ffmpeg.org/ticket/3395

=== MXF playback broken - part 1 ===

No video on this 1080p50 sample in libav:
http://streams.videolan.org/misc/mxf/1080p50.MXF

=== MXF playback broken - part 2 ===

No seek after 4GB on this sample in libav http://streams.videolan.org/misc/mxf.zip

See https://trac.videolan.org/vlc/ticket/10208

[[Category:Dev Discussions]]