[FFmpeg-devel] [GSoC] Qualification Task

Michael Niedermayer michaelni at gmx.at
Sat Mar 26 19:04:29 CET 2011

On Thu, Mar 24, 2011 at 10:35:53AM +0200, Mina Nagy Zaki wrote:
> On Wednesday 23 March 2011 19:03:28 Stefano Sabatini wrote:
> > On date Wednesday 2011-03-23 06:25:15 +0200, Mina Nagy Zaki encoded:
> > > On Tuesday 22 March 2011 17:35:39 Stefano Sabatini wrote:
> > This is essentially what is done in the case of video, check for
> > example how it is done in fifo (and of course you need to implement it
> > in a source). I don't know if this is a mess, but don't worry, we'll
> > fix it ;-).
> Yes, vf_fifo does pass on frames through avfilter_draw_slice from inside its 
> request_frame callback, and actually breaks the draw_slice function stack
> using an empty callback. 

> But then what's wrong with a pure pull model at least for audio (because

The problem with pure pull is a filter with 2 outputs
Its not so easy to have both independant filters pull from both at
the same time. And if they dont then one pushes or must buffer

There probably are other issues


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

He who knows, does not speak. He who speaks, does not know. -- Lao Tsu
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