On 11/2/18, Daniel Oberhoff <[email protected]> wrote: > Am 18.10.18 um 12:13 schrieb Paul B Mahol: >> On 10/18/18, Daniel Oberhoff <[email protected]> wrote: >>> Hello, >>> >>> >>> So we are trying to encode raw rgb data from a pipe with ffmpeg. We >>> found that ffmpeg implicitly converts the data to tv range bt601, which >>> is suboptimal. Especially tv range loses more information than >>> neccessary, also bt709 seems to be the better color space. >>> >>> >>> We know we can fix this by adding -vf >>> scale=out_color_matrix=bt709:out_range=pc. Unfortuntately thi makes >>> encoding a lot slower (40 vs 60 fps) which effectively makes this >>> approach too slow for us. Do yiz have any idea why this is the case? >> That approach does not use slice threading. > > So what is the suggested way to do this? Or should we just accept that > rgb encoding is either slow or suboptimal? Is this such a rare use-case?
I suggest to raise bounty to further improve swscale library. _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
