On Mon, Sep 21, 2015 at 12:32:22AM +0200, Michael Niedermayer wrote: > 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 ?
If there is such a list, I'd like to add lut3d: I was looking for a way to do the current simple query_formats with the addition of a XYZ input which would be mapped to one or two rgb64 output if selected. I think overlay was the first to have a special logic in that spirit? I don't remember any other so far, but git grep EAGAIN libavfilter might give hints. [...] -- Clément B.
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