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@raulghm
raulghm / semantic_versioning.md
Last active August 29, 2015 14:26
Semantic Versioning

Semantic Versioning

1.2.3

major minor patch
1 2 3

major: incompatible API changes

@gildotdev
gildotdev / ffmpeg.txt
Last active October 30, 2017 00:31
ffmpeg cli commands
## extract audio from .avi as .aac (conversion from another audio codec)
ffmpeg -i foo.avi -acodec aac -ab 128k -strict experimental bar.aac
## extract audio from .avi as .mp3 (no conversion, just copy)
ffmpeg -i foo.avi -acodec copy bar.mp3
## convert .mp3 to .aac
ffmpeg -i foo.mp3 -acodec aac -ab 128k -strict experimental bar.aac
## extract single frame as image from .mp4