[FFmpeg-devel] Format for fast extraction (was: [PATCH] Dynamic plugins loading)
Thu Nov 4 20:24:46 CET 2010
Le duodi 12 brumaire, an CCXIX, Alexander Strange a ?crit?:
> On Nov 2, 2010, at 8:32 PM, Aurelien Jacobs wrote:
> > I don't really know details about mov, but indeed it is capable of
> > containing "links" to other files.
> > Matroska has some similar features. You can get a good idea of the
> > features here: http://mod16.org/hurfdurf/?p=8
> > One common use of this feature is to store a whole bunch of episode of a
> > TV serie, but store the opening theme only once in a separate file. Still
> > each episode will play fully, including the opening theme.
> > I think it would fulfill your usecase perfectly.
> Matroska can only link other matroska files. mov's data references don't
> imply anything about the referenced file, so you can use it for anything
> you want.
> Except that it can't reference TS files, because IIRC they don't have
> contiguous packets in the file. So even that would still require copying
> data out of the original file.
I see. Thanks to you both for those details. It seems this is still
uncharted territory, with a lot of new code needed to achieve anything. The
system I have designed two years ago works satisfactorily, and I have no
spare time to re-work it in depth, so I will leave it as is for now.
If people here want, I can give the technical details and the code for the
tools I have written. If not, I think I can stop this discussion here.
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