[MPlayer-users] -demuxer lavf on HD-DVD problem

[The Wanderer]

Martin Cracauer wrote:

> The Wanderer wrote on Sun, Mar 29, 2009 at 08:16:49AM -0400:
> 
>> Martin Cracauer wrote:
>> 
>>> Hi.
>>> 
>>> I have trouble with -demuxer lavf giving me a "LAVF_check: no
>>> clue about this gibberish!", but only on one of two similar
>>> files.

>>> Can I just force lavf to assume the second file is MPEG-PS, too?
>>> As a first step in debugging that sound like something to try but
>>> I don't see any options.
>> 
>> It's in the man page, though not necessarily obvious if you don't
>> know where to look. Try '-lavfdopts format=vob' or similar.
> 
> Hmmm, can't find it.
> 
> -lavdopts is for debugging, doesn't have a format suboption.
> 
> -lavcopts is for encoding, no format spec either.

It's in the man page for my version (SVN r28946, because I haven't
updated my video drivers to match code changes since then). Try
searching for "libavformat demuxers".

And yes, this *is* in fact '-lavfdopts' ; '-lavfopts' also exists and
has a "format" suboption, but it's for muxing only.

>>> As I said above, if I use the default demuxer instead of lavf the
>>> file plays, but video only.
>> 
>> What demuxer does it say it's using then?
> 
> Not obvious to me.  All probes seem to fail but somehow it gets
> video:

<snip>

Hmm. I seem to remember having seen the demuxer name (as opposed to a
more human-readable description of the container format, which is just
before the VIDEO: line) being printed even without verbose output, but
when I check again on my own system I'm not seeing it.

-- 
       The Wanderer

Warning: Simply because I argue an issue does not mean I agree with any
side of it.

Secrecy is the beginning of tyranny.