Cortei o vídeo em formato de círculo e sobrepus na imagem, tudo funcionou bem, mas como mostrar a borda vermelha na borda do vídeo do círculo.
ffmpeg -loop 1 -i pic1.jpg -i semple.mp4 -filter_complex \
"[1]trim=end_frame=1,geq='st(3,pow(X-(W/2),2)+pow(Y-(H/2),2));if(lte(ld(3),pow(min(W/2,H/2),2)),255,0)':128:128,loop=-1:1,setpts=N/FRAME_RATE/TB[mask];[1][mask]alphamerge[cutout];[cutout]scale=400:400[cir];[0][cir]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2:shortest=1[out]" -map [out] -map 1:a -preset ultrafast -filter_complex_threads 1 -c:a copy -y output.mp4
por favor alguém ajude.
Responder1
Depois que a máscara cout for mesclada, use geq para desenhar uma borda vermelha de 10 pixels.
Usar
ffmpeg -loop 1 -i pic1.jpg -i semple.mp4 -filter_complex \ "[1]trim=end_frame=1,geq='st(3,pow(X-(W/2),2)+pow(Y-(H/2),2));if(lte(ld(3),pow(min(W/2,H/2),2)),255,0)':128:128,loop=-1:1,setpts=N/FRAME_RATE/TB[mask];[1][mask]alphamerge,format=yuva444p,geq='st(3,sqrt(pow(X-(SW*W/2),2)+pow(Y-(SH*H/2),2)));if(between(min(SW*W/2,SH*H/2)-ld(3),0,10),67,p(X,Y))':'st(3,sqrt(pow(X-(SW*W/2),2)+pow(Y-(SH*H/2),2)));if(between(min(SW*W/2,SH*H/2)-ld(3),0,10),90,p(X,Y))':'st(3,sqrt(pow(X-(SW*W/2),2)+pow(Y-(SH*H/2),2)));if(between(min(SW*W/2,SH*H/2)-ld(3),0,10),240,p(X,Y))':a='st(3,sqrt(pow(X-(SW*W/2),2)+pow(Y-(SH*H/2),2)));if(between(min(SW*W/2,SH*H/2)-ld(3),0,10),128,p(X,Y))',scale=400:400[cir];[0][cir]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2:shortest=1[out]" -map [out] -map 1:a -preset ultrafast -filter_complex_threads 1 -c:a copy -y output.mp4