FFmpeg

2015-05-18
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FFmpeg logo

Software > Video editing >

(on Wikipedia)
https://ffmpeg.org/

A suite of tools to diddle with multimedia stuff and things.

It's mandatory to have in my toolkit.



Table of Contents [hide]

2018-04-09 - (version not recorded) - ∞

I went through hell to try to work around a Devuan 1.0.0 avconv crash (Devuan).

Debian switched.

2018-04-15 - 3.4 ∞

This sort of thing works:

Success:

ffmpeg -r 1 -i *.jpg -i *.ogg -vcodec mpeg4 output.avi

error ∞

This might be the same issue I was having with avconv. See Devuan 1.0.0 avconv crash.

ffmpeg -r 1 -i *.jpg -i *.ogg -vcodec h264  output.avi

Usage and troubleshooting ∞

converting a movie into images ∞

~2016-03-26

ffmpeg -i filename.ogg filename-images%d.png

Btw, you can convert the images back to a movie with:

ffmpeg -f image2 -i filename-images%d.png filename.ogg

for YouTube videos ∞

~2016-03-26

ffmpeg -i filename.mpg -ar 22050 filename.flv

correcting bad audio sync ∞

~2016-03-26

www.ffmpeg.org/ffmpeg-doc.html#SEC15 (not really archived [ 1 ] )

ffmpeg -i filename.mpg -ar 22050 -async 1 filename.flv

Tested and works on 2009-01 on PCLinuxOS 2007

Remuxing to rebuild a file ∞

This might repair a video.

ffmpeg -i input.mp4 -c copy output.mp4

Rebuilding keyframes ∞

ffmpeg -i input.mp4 -c:v libx264 -preset medium -crf 23 -g 250 output.mp4

Notes ∞

Last updated 2024-09-18 at 11:53:42

Footnotes

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