5774 shaares
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tagged
video
ffmpeg -i input.avi -c:v libx264 -preset slower -crf 20 -c:a libfaac output.mp4
"visually lossless" but not technically lossless, use a -crf value of around 17 or 18
Merge multiple files (with same properties)
Make a text file. Contents of an example text file to repeat 4 times.
file 'input.mp4'
file 'input.mp4'
file 'input.mp4'
file 'input.mp4'
Then run ffmpeg:
ffmpeg -f concat -i list.txt -c copy output.mp4
npr. 1024×768@60Hz:
/opt/vc/bin/tvservice --explicit='DMT 16 HDMI'