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.
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