On 9/20/15, Nicolas George <geo...@nsup.org> wrote: > Le primidi 11 fructidor, an CCXXIII, Paul B Mahol a écrit : >> One more thing, the query_formats is very limited for filters that pick >> one >> pixel format for input and another one for output depending on picked >> format >> for input. Returning EAGAIN almost always works but there are special >> situations when it does not work. There should be query_formats2 or >> similar >> which would address such limitations. > > The mechanism using EAGAIN is far from perfect, you are right, it is quite > fragile actually. But to enhance it, saying query_formats2 is not enough: > it > would be necessary to tell what would go in it and how it would be used. > > In other words, the current algorithm is quite good and elegant for the > simple cases, but I have no idea how to change in order to make it work for > complex cases too.
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. > > Regards, > > -- > Nicolas George > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
