[vlc] Problem with subtitles and some mpeg files.

[Colin Law]

On 15 November 2010 09:23, Colin Law <clanlaw at googlemail.com> wrote:
> On 14 November 2010 17:36, Colin Law <clanlaw at googlemail.com> wrote:
>> Hi
>> I am trying to use srt subtitle files with mpeg video files.  With
>> some mpeg files the video displays ok and the subtitles are shown.
>> With others, using the same srt file, the video does not play at all.
>> These files play fine if I do not specify a subtitle file.
>>
>> The mpeg files that fail when a subtitle file is specified were
>> generated by vlc from the stream from a Hauppauge PVR 150 using
>> cvlc --sout "#std{access=file,mux=ts,dst=$FILENAME}"  /dev/video0
>>
>> When I attempt to play the file with subtitles using
>> vlc -vv  --sub-file=SubRip_subtitles_capability_tester.srt "test (copy).mpg"
>> the play does not start.  The log o/p is at
>> http://pastebin.com/267TJD8W (is that the accepted method of posting
>> logs here?).  It appears that the sub file is picked up ok but for
>> some reason that causes the play to fail.  The relevant bit of the log
>> may (or may not) be:
>>
>> [0x85933fc] main input debug:
>> `file:///home/colinl/Videos/test%20%28copy%29.mpg' successfully opened
>> [0x85933fc] main input debug: slave 0 EOF
>> Warning: call to rand()
>> [0x86e6e94] qt4 interface debug: IM: Setting an input
>> Warning: call to rand()
>> Warning: call to rand()
>> Warning: call to rand()
>> [0x890ed4c] ts demux debug: eof ?
>> [0x85933fc] main input debug: EOF reached
>> [0x86e3dfc] main playlist debug: finished input
>> [0x896350c] main decoder warning: no vout found, dropping subpicture
>>
>> The mpeg files were produced using vlc 1.1.4 on Ubuntu 10.10 and the
>> failing playback is using 1.2.0 on Ubuntu 10.04.  I can upgrade the
>> video capture machine if the version there (1.1.4) could be an issue.
>> The playback also fails on vlc version 1.1.4
>
> Some further information on this.
>
> Firstly clarifying that the problem is not related to the contents of
> the srt file as far as I can tell.  It fails even with the simplest
> srt file.
>
> Secondly I have pasted the log from a working run, without the
> subtitles,  in case that is useful - http://pastebin.com/KbCvn29V
>
> Hopefully someone can help me.

I now see that this is a known issue -
http://trac.videolan.org/vlc/ticket/3075.  It appears that it is just
not possible to show subtitles on this type of file.

Colin