[FFmpeg-devel] [PATCH] encoder for adobe's flash ScreenVideo2 codec

Michael Niedermayer michaelni
Fri Nov 20 22:00:29 CET 2009


On Fri, Nov 20, 2009 at 02:03:29PM -0600, Daniel Verkamp wrote:
> On Fri, Nov 20, 2009 at 1:46 PM, Michael Niedermayer <michaelni at gmx.at> wrote:
> > On Fri, Nov 20, 2009 at 01:31:43PM -0600, Daniel Verkamp wrote:
> >> On Fri, Nov 20, 2009 at 12:34 PM, Michael Niedermayer <michaelni at gmx.at> wrote:
> >> > On Fri, Nov 20, 2009 at 04:14:28PM +0100, Benjamin Larsson wrote:
> >> > [...]
> >> > ok
> >> >
> >> > [...]
> >>
> >> Approved hunks applied.
> >>
> >> This hunk from the encoder patch seems straightforward enough also and
> >> allows -vcodec copy to work (only with the decoder added, though; is
> >> it intentional/known that -vcodec copy does not work when no decoder
> >> for that codec id is registered?);
> >
> > hmm, what is the problem if no decoder is available?
> > i thought this worked in the past but i might be wrong
> >
> 
> Given a command line like:
> 
> ffmpeg -i /files/media-samples/flash-screen/screen2.flv -vcodec copy
> ~/temp/screen2-copy.flv
> 
> It falls over with:
> 
> [flv @ 0x25813c0]Could not find codec parameters (Video: 0x0000, 200 kb/s)
> /files/media-samples/flash-screen/screen2.flv: could not find codec parameters

and if you simply outcomment the exit call in ffmpeg.c ?

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

Freedom in capitalist society always remains about the same as it was in
ancient Greek republics: Freedom for slave owners. -- Vladimir Lenin
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