Downsize 4k Videos

Downsize 4k Videos

not all my equipment can display 4k video material, especially not H.265 material. These are some commands

10-bit H.265 to 10-bit H.264

ffmpeg -i infile -c:v libx264 -crf 18 -c:a copy outfile.mkv

true lossless with -crf 0 could produce big files

10-bit H.265 to 8-bit H.265

ffmpeg -i infile -c:v libx265 -vf format=yuv420p -c:a copy outfile.mkv

true lossless with -x265-params lossless=1, again, can become big...

10-bit H.265 to 8-bit H.264

ffmpeg -i infile -c:v libx264 -crf 18 -vf format=yuv420p -c:a copy outfile.mkv

nice for PS4

== Windows example command

 F:\GoPro\2020-12-19\HERO7 BLACK 1>for %f in (*.MP4) do "C:\Users\Joachim\Downloads\ffmpeg-2020-12-15-git-32586a42da-essentials_build\bin\ffmpeg.exe" -i %f -c:v libx264 -crf 18 -c:a copy %f.mkv

more infos

• https://trac.ffmpeg.org/wiki/Encode/H.265
• https://trac.ffmpeg.org/wiki/Encode/H.264
• https://handbrake.fr/
• https://superuser.com/questions/1380946/how-do-i-convert-10-bit-h-265-videos-to-h-264-without-quality-loss