[FFmpeg-devel] [PATCH 4/5] lavfi: drop the requirement that request_frame returns a frame.

Michael Niedermayer michaelni at gmx.at
Mon Sep 21 00:32:22 CEST 2015

On Sun, Sep 20, 2015 at 07:39:11PM +0200, Nicolas George wrote:
> Le jour de la Raison, an CCXXIII, Paul B Mahol a écrit :
> > For complex cases one needs to set for which set of input pixel
> > formats output pixel format will be picked from another set, so its
> > M->N mapping, without overlaping.
> Yes, but what algorithm do you apply to the mapping afterwards to select the
> best combination of formats? And for channel layouts, how do you express the
> mapping over a domain with billions of elements?

is there a list of filters that would benefit from a more powerfull
query_format ?
iam asking as such list could be useful in the design, so potential
designs can be checked against the filters in the list, to see how
much a design would improve things ...


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Old school: Use the lowest level language in which you can solve the problem
New school: Use the highest level language in which the latest supercomputer
            can solve the problem without the user falling asleep waiting.
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