mpv will can add the checker in background for DNxHR (has alpha)?

[manuelsongokuh]

hi

i tested file mov: codec qtrle has alpha, mpv show the background style checker , this is very important to know if there is alpha or not alpha..

so i have other file MOV: codec DNxHR, has alpha , but background is color black.. so i wish that mpv will add feature make it in style checker..? is it possible for aff feature? or problem from ffmpeg?

[CounterPillow]

https://mpv.io/manual/master/#options-alpha

If it's not showing tiles, it's because you're trying to watch something like VP8/VP9 where the alpha component is a demuxer hack and not part of the video stream. This would be an ffmpeg issue.

[manuelsongokuh]

i checked file mpv.conf
alpha=yes not work tiles
alpha=blend-tiles not works tiles
alpha=blend not works tiles

what i will do..? ( i wish mpv make it tiles (checker) for DNxHR (include alpha)

[CounterPillow]

What you should be doing is ask ffmpeg to fix alpha for your format

[manuelsongokuh]

ah, that is issue to FFmpeg? ok