Dies ist eine alte Version des Dokuments!
ffmpeg -i video_1920x1080.mp4 -vf scale=-1:720 -c:v libx264 -crf 18 -preset veryslow -c:a copy video_1280x720.mp4
ffmpeg -i input.mp4 -c:v libaom-av1 -b:v 2M -pass 1 -an -f null /dev/null && \ ffmpeg -i input.mp4 -c:v libaom-av1 -b:v 2M -pass 2 -c:a libopus output.mkv
unter Windows
ffmpeg.exe -i input.mp4 -c:v libaom-av1 -b:v 2M -pass 1 -an -f null NUL && ffmpeg.exe -i input.mp4 -c:v libaom-av1 -b:v 2M -pass 2 -c:a libopus output.mkv
Fall 1: audio beginnt vor video (150 ms = 0.15 s)
ffmpeg -i video.mp4 -itsoffset 0.150 -i video.mp4 -vcodec copy -acodec copy -map 0:0 -map 1:1 video_insync.mp4
Fall 2: video beginnt vor audio (150 ms = 0.15 s)
ffmpeg -i video.mp4 -itsoffset 0.150 -i video.mp4 -vcodec copy -acodec copy -map 0:1 -map 1:0 video_insync.mp4
ffmpeg -f concat -safe 0 -i liste.txt -c copy OUT.mp4
wobei liste.txt unter Windows
file 'd:/videos/t1.mp4' file 'd:/videos/t2.mp4'
ffmpeg -ss [start] -i in.mp4 -t [duration] -c copy out.mp4
Recommended width and height for videos with 16:9 aspect ratios: Best Choice: 2nd Best: 3rd Best: Multiples of 16 Multiples of 8 Multiples of 4 1920 x 1080 1792 x 1008 1856 x 1044 1280 x 720 1152 x 648 1216 x 684 1024 x 576 896 x 504 1088 x 612 768 x 432 640 x 360 960 x 540 512 x 288 384 x 216 832 x 468 256 x 144 128 x 72 704 x 396 576 x 324 448 x 252 320 x 180 192 x 108