I have a video editor app, so videos can be of any dimension and at any position in the scene. I want to apply a transition between 2 videos which are placed side by side in the timeline with one starting immediately after another but those 2 videos can be of any dimension and at any position with crop and rotation options. I have successfully managed to produce an export command using overlay filter which combines videos at any given time at any position transparently. For transition I and trying to replace overlay with xfade. The xfade filter requires 2 videos to have the same fps, and the same dimensions to combine and apply various transition effects.
The initial command with overlay. C:\ffmpeg-6.0-full_build\bin\ffmpeg.exe -y -threads 12 -loop 1 -i C:\background.png -i C:\1526909-sd_960_540_24fps.mp4 -i C:\1409899-sd_960_540_25fps.mp4 -i C:\2169880-sd_960_540_30fps.mp4 -filter_complex "\ [0]setpts=PTS/1-STARTPTS+0/TB,scale=966:544,setsar=1:1,setdar=dar=16/9,format=yuva420p[s0];\ [1]trim=start=0:end=5,setpts=PTS/1-STARTPTS+0/TB,format=pix_fmts=yuva420p,crop=w=320:h=539.99956497196:x=320:y=0.00021751402186965,scale=322:544,setsar=1:1,setdar=dar=16/9[s1];\ [s0][s1]overlay=x=0:y=0:enable='between(t,'0','5')'[out_1];\ [2]trim=start=0:end=5,setpts=PTS/1-STARTPTS+5/TB,format=pix_fmts=yuva420p,crop=w=320:h=539.99956497196:x=320:y=0.00021751402186965,scale=322:544,setsar=1:1,setdar=dar=16/9[s2];\ [out_1][s2]overlay=x=322:y=0:enable='between(t,'5','10')'[out_2];\ [3]trim=start=0:end=5,setpts=PTS/1-STARTPTS+10/TB,format=pix_fmts=yuva420p,crop=w=320:h=539.99956497196:x=320:y=0.00021751402186965,scale=322:544,setsar=1:1,setdar=dar=16/9[s3];\ [out_2][s3]overlay=x=643:y=0:enable='between(t,'10','15')'[out_3];\ [3]atrim=start=0:end=5,atempo=1,asetpts=PTS-STARTPTS[vao_3];\ [vao_3]adelay=10000|10000[va3]\ " -map [out_3] -map [va3] -vcodec libx264 -acodec libmp3lame -b:a 128k -t 15 C:\output.mp4 My attempt with xfade filter C:\ffmpeg-6.0-full_build\bin\ffmpeg.exe -y -threads 12 -loop 1 -i C:\background.png -i C:\1526909-sd_960_540_24fps.mp4 -i C:\1409899-sd_960_540_25fps.mp4 -i C:\2169880-sd_960_540_30fps.mp4 -filter_complex "\ [0]fps=24,setpts=PTS/1-STARTPTS+0/TB,scale=966:544,setsar=1:1,setdar=dar=16/9,format=yuva420p[s0];\ [1]fps=24,trim=start=0:end=5,setpts=PTS/1-STARTPTS+0/TB,format=pix_fmts=yuva420p,crop=w=320:h=540:x=320:y=0:exact=1,scale=322:544,setsar=1:1,setdar=dar=16/9[s1];\ [s0][s1]overlay=x=0:y=0:enable='between(t,'0','5')'[out_1];\ [2]fps=24,trim=start=0:end=5,setpts=PTS/1-STARTPTS+4/TB,format=pix_fmts=yuva420p,crop=w=320:h=540:x=320:y=0:exact=1,scale=322:544:force_original_aspect_ratio=decrease,pad=966:544:322:0:color=0xff000000,setsar=1:1,setdar=dar=16/9[s2];\ [out_1][s2]xfade=transition=fadeblack:duration=1:offset=4[out_2];\ [3]fps=24,trim=start=0:end=5,setpts=PTS/1-STARTPTS+8/TB,format=pix_fmts=yuva420p,crop=w=320:h=540:x=320:y=0:exact=1,scale=322:544:force_original_aspect_ratio=decrease,pad=966:544:643:0:color=0xff000000,setsar=1:1,setdar=dar=16/9[s3];\ [out_2][s3]xfade=transition=fadewhite:duration=1:offset=8[out_3];\ [3]atrim=start=0:end=5,atempo=1,asetpts=PTS-STARTPTS[vao_3];\ [vao_3]adelay=8000|8000[va3]\ " -map [out_3] -map [va3] -vcodec vp9 -acodec libmp3lame -b:a 128k -t 13 C:\output.mp4 But with this command, I am not able to generate the transparent padded area and the transition effect applies to the whole area, whereas I want it to apply to only the 2 videos area. Any possible help or suggestion is appreciated. Thanks, _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
