using ffmpeg generic equations geq
heres a link to my github file with the commands and comments https://github.com/afrum/my_ffmpeg/bl...
for blend command:
https://github.com/afrum/my_ffmpeg/bl...
for hstack command:
https://github.com/afrum/my_ffmpeg/bl...
here's a link to the documentation
http://ffmpeg.org/ffmpeg-all.html#Exa...
this command will play a mirror image of the video along the y-axis
ffplay -i input.MOV -vf "geq=p(W-X\,Y)"
this command will create a horizontally flipped video:
ffmpeg -i input.MOV -vf "geq=p(W-X\,Y)" horizontal_geq.MOV
to make a video to compare the input and output videos side by side:
ffmpeg -i input.MOV -i horizontal_geq.MOV -an -filter_complex hstack=inputs=2 hstack_1.MOV
play a bidimentional sine wave with angle PI/3 and wavelength of 100 pixels
ffplay -i input.MOV -vf "geq=128 + 100*sin(2*(PI/100)*(cos(PI/3)*(X-50*T) + sin(PI/3)*Y)):128:128"
create a bidimentional sine wave with angle PI/3 and wavelength of 100 pixels video
ffmpeg -i input.MOV -vf "geq=128 + 100*sin(2*(PI/100)*(cos(PI/3)*(X-50*T) + sin(PI/3)*Y)):128:128" bidimensional_sine_wave.MOV
create fancy enigmatic moving light
ffmpeg -i input.MOV -vf "geq=random(1)/hypot(X-cos(N*0.07)*W/2-W/2\,Y-sin(N*0.09)*H/2-H/2)^2*1000000*sin(N*0.02):128:128" enigmatic_light.MOV
slight edit to fancy enigmatic moving light command
ffmpeg -i input.MOV -vf "geq=N+105+random(1)/hypot(X-cos(N*0.07)*W/2-W/2\,Y-sin(N*0.09)*H/2-H/2)^2*1000000*sin(N*0.02):128:128" enigmatic_light2.MOV
emboss effect
ffmpeg -i input.MOV -vf "format=gray,geq=lum_expr='(p(X,Y)+(256-p(X-4,Y-4)))/2'" emboss.MOV
RGB modified depending on pixel position
ffmpeg -i input.MOV -vf"geq=r='X/W*r(X,Y)':g='(1-X/W)*g(X,Y)':b='(H-Y)/H*b(X,Y)'" modify_rgb.MOV
make a vignette effect
ffmpeg -i input.MOV -vf "geq=lum=255*gauss((X/W-0.5)*3)*gauss((Y/H-0.5)*3)/gauss(0)/gauss(0),format=gray" radial_gradient.MOV
after creating the outputs e.g radial_gradient.MOV, enigmatic_light.MOV etc... you can blend these to get interesting effects
ffmpeg -i radial_gradient.MOV -i input.MOV -filter_complex "[0:v]format=gbrp[f0],[1:v]format=gbrp[f1],[f0][f1]blend=all_mode=and" blendgradient.MOV
ffmpeg -i enigmatic_light.MOV -i input.MOV -filter_complex "[0:v]format=gbrp[f0],[1:v]format=gbrp[f1],[f0][f1]blend=all_mode=phoenix" blendenigmatic.MOV
ffmpeg -i bidimensional_sine_wave.MOV -i input.MOV -filter_complex "[0:v]format=gbrp[f0],[1:v]format=gbrp[f1],[f0][f1]blend=all_mode=negation" blendsine.MOV
0:00 intro
0:45 horizontal flip
1:32 bidirectional sine wave
1:51 enigmatic light
2:36 emboss effect
2:56 modify rgb
3:33 vignette
3:53 geq and blend
4:20 thanks
Смотрите видео using ffmpeg generic equations geq онлайн без регистрации, длительностью часов минут секунд в хорошем качестве. Это видео добавил пользователь A Forum 18 Май 2021, не забудьте поделиться им ссылкой с друзьями и знакомыми, на нашем сайте его посмотрели 368 раз и оно понравилось 12 людям.