IT/Software/Command Line Applications/ffmpeg: Difference between revisions
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This tool is amazingly broad. | |||
We will only attempt to show a few of its key features. | We will only attempt to show a few of its key features. | ||
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crf should vary between 18 and 24. The higher the number the higher the compression and lower the quality | crf should vary between 18 and 24. The higher the number the higher the compression and lower the quality | ||
== Convert a whole directory. == | ==Convert a whole directory.== | ||
<code>for i in *.avi; do ffmpeg -i "$i" "${i%.*}.mp4"; done</code> | <code>for i in *.avi; do ffmpeg -i "$i" "${i%.*}.mp4"; done</code> | ||
Revision as of 15:03, 1 February 2021
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This tool is amazingly broad.
We will only attempt to show a few of its key features.
Reduce Video size and maintain some quality.
ffmpeg -i input.mp4 -vcodec libx264 -crf 20 output.mp4
crf should vary between 18 and 24. The higher the number the higher the compression and lower the quality
Convert a whole directory.
for i in *.avi; do ffmpeg -i "$i" "${i%.*}.mp4"; done
You can add your parameters there like crf and -vcodec
Extract audio from video
- Change extension and names as needed.
- Path is relative unless noted.
- Single quotes are needed if you have spaces or any special character
ffmpeg -i '20150125 Word Blesses Us'.mp4 '20150125 Word Blesses Us'.mp3