[FFmpeg-devel] [RFC] comment mpegvideo_split

Michael Niedermayer michaelni
Tue Mar 18 22:25:15 CET 2008


On Tue, Mar 18, 2008 at 10:37:39AM +0100, Baptiste Coudurier wrote:
> Hi,
> 
> Michael Niedermayer wrote:
> > On Tue, Mar 18, 2008 at 01:16:34AM +0100, Baptiste Coudurier wrote:
> >> Hi,
> >>
> >> Currently, mpegvideo split function causes problems with containers
> >> setting AVFMT_GLOBAL_HEADER, mov and mp4 in particular, because
> >> MPEG-1/2 in those containers are to be muxed normally.
> >>
> >> I don't know any particular usage of the mpegvideo split function, so I
> >> tend to want to comment it, to finally fix this issue.
> >>
> >> Anyone see another better alternative ?
> > 
> > After a few more seconds :)
> > The muxers could just dump extradata for the case of mpeg1/2 before keyframes,
> > that should fix it i think. Its of course a little odd to first extract and
> > then put it back in the muxer.
> > 
> 
> That's an idea, though I think it also will complicate more mov muxer,
> also it would assume that keyframes are correctly marked, extradata is
> well formed, and current packet data does not already contain extradata :/
> 
> Does this split function will ever be used ?

nut "uses" it i suspect.

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

No snowflake in an avalanche ever feels responsible. -- Voltaire
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