Thank you. Hanna
On Tue, Jan 4, 2022 at 1:06 PM Michael Koch <[email protected]> wrote: > Am 04.01.2022 um 18:04 schrieb Hanna Frangiyyeh: > > Hi Michael; > > Sorry I'm a novice to ffmpeg, is there a way to do it in one command > pass. > > Also, do you have command that you can share? > > Here is an example: > > rem Make a short test video with alpha channel > > ffmpeg -f lavfi -i testsrc2=s=1920x1080:d=3 -lavfi > format=rgba,geq=a='255*gt(X,Y)':r='r(X,Y)':g='g(X,Y)':b='b(X,Y)' -c:v > prores_ks -y test.mov > > > rem Extract the RGB channels > > ffmpeg -i test.mov -pix_fmt rgb48le -y rgb.mov > > > rem Extract the alpha channel > > ffmpeg -i test.mov -lavfi extractplanes=a -y alpha.mov > > > It's possible to do all in one command, but it's easier if you make it > in two steps. > > Michael > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
