Bug#481417: vlc: x264/h264 playback is broken in 0.8.6.e-2.1

[Nick Ives]

Hi Nico,

As I didn't want to upload a large file I transcoded a snip of
something in my mythtv cache. I noticed, however, that 2.1 played the
raw x264 fine. The error appeared when the video was muxed into an
mkv.

I transcoded the same snip from dvb-t (mpeg2) to both xvid and x264
using mencoder and put it in an mkv container and the same bug appears
both times, so this is really a problem with 2.1 reading mkv files it
seems.

I've pasted the output from running VLC in a console below too. All
attempts I've made to play anything in an mkv container have resulted
in the below output, though larger files result in the "unknown track
header" running on a bit further.

All content works OK in 0.8.6.e-2.

http://www.wikiupload.com/download_page.php?id=33627

nick at fleapit:~/ndrive/mtmp$ vlc example.mkv
VLC media player 0.8.6e Janus
[matroska @ 0x2aaabe74b300]Ignoring seekhead entry for ID=0x1549a966
[matroska @ 0x2aaabe74b300]Ignoring seekhead entry for ID=0x1654ae6b
[matroska @ 0x2aaabe74b300]Ignoring seekhead entry for ID=0x114d9b74
[matroska @ 0x2aaabe74b300]Unknown entry 0x73a4 in info header
[matroska @ 0x2aaabe74b300]Unknown track header entry 0x55aa - ignoring
[matroska @ 0x2aaabe74b300]Unknown track header entry 0x23314f - ignoring
[matroska @ 0x2aaabe74b300]Unknown track header entry 0x55ee - ignoring
[matroska @ 0x2aaabe74b300]Unknown track header entry 0xaa - ignoring
[00000357] ffmpeg decoder error: more than 5 seconds of late video ->
dropping frame (computer too slow ?)
[00000285] main playlist: nothing to play
[00000285] main playlist: stopping playback
nick at fleapit:~/mtmp$ vlc 264/example.mkv
VLC media player 0.8.6e Janus
[matroska @ 0x2aaabe74b300]Ignoring seekhead entry for ID=0x1549a966
[matroska @ 0x2aaabe74b300]Ignoring seekhead entry for ID=0x1654ae6b
[matroska @ 0x2aaabe74b300]Ignoring seekhead entry for ID=0x114d9b74
[matroska @ 0x2aaabe74b300]Unknown entry 0x73a4 in info header
[matroska @ 0x2aaabe74b300]Unknown track header entry 0x55aa - ignoring
[matroska @ 0x2aaabe74b300]Unknown track header entry 0x23314f - ignoring
[matroska @ 0x2aaabe74b300]Unknown track header entry 0x55ee - ignoring
[matroska @ 0x2aaabe74b300]Unknown track header entry 0xaa - ignoring
[00000357] ffmpeg decoder error: more than 5 seconds of late video ->
dropping frame (computer too slow ?)
[00000285] main playlist: nothing to play
[00000285] main playlist: stopping playback
nick at fleapit:~/mtmp$

Thanks for your work on this package,

-- 
Nick

2008/5/16 Nico Golde <nion at debian.org>:
> Hi Nick,
> * Nick Ives <nickives at gmail.com> [2008-05-16 08:35]:
>> X264/H264 playback is broken in 0.8.6.e-2.1. Any attemp to play back
>> video using this codec results in VLC just skipping through the whole
>> stream in a second or two. This works fine in 0.8.6.e-2.
>>
>> All files I've tried are in mkv containers. I don't have any x264
>> content in other container formats so cant test other containers.
>
> I did the 0.8.6.e-2.1 upload which was a security fix.
> Looking at the patch (which was assembled by upstream
> changes) I can't see any breakage:
> http://people.debian.org/~nion/nmu-diff/vlc-0.8.6.e-2_0.8.6.e-2.1.patch
>
> Could you upload one of these files somewhere?
>
> Kind regards
> Nico
> --
> Nico Golde - http://www.ngolde.de - nion at jabber.ccc.de - GPG: 0x73647CFF
> For security reasons, all text in this mail is double-rot13 encrypted.
>