[FFmpeg-devel] [PATCH]Auto-detection for concat demuxer

Nicolas George nicolas.george at normalesup.org
Sun Feb 3 14:04:34 CET 2013

Le quintidi 15 pluviôse, an CCXXI, Carl Eugen Hoyos a écrit :
> But this is only / mostly due to other patches, it is 
> not related to 3/3 allow probing, or am I wrong?

The patches all go together.

> I believe you missed that my patch will not detect 
> (all) files that start with "file " but only files 
> that (start with "file " and) actually look like 
> concat scripts.

After reading it once more, I realize that. Unfortunately, that also means
that this version of probing will no longer work once new directives are
added. It was the plan from the start to have directives to allow seeking in
the files and tweaking timestamps.

> Or in other words: It is trivial to edit a valid file 
> so it is still working with current FFmpeg and FFmpeg 
> with my patch, but not with your patch, I don't think 
> this is as easy for my patch (it is definitely possible 
> but I have not yet found a file for which it actually 
> does a misdetection).

Ah, I see your point. But since the syntax is meant to be expanded, I do not
believe this is very important.


  Nicolas George
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