technology/linux/audio_visual/ffmpeg.md
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@@ -5,6 +5,11 @@
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ffmpeg -i input-video.mkv -q:a 0 -map a output-audio.mp3
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```
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+### remove audio from a video
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+```
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+ffmpeg -i video.mkv -c copy -an video-nosound.mkv
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+```
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+
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### record a video
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without audio
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```