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ffmpeg [2023/08/27 20:51] – FFmpeg Explorer rjtffmpeg [2025/04/10 23:33] (current) – note on what copy means. rjt
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 <code>ffmpeg -i [input].mp3 -c:a libvorbis -q:a 4 [output].ogg</code> <code>ffmpeg -i [input].mp3 -c:a libvorbis -q:a 4 [output].ogg</code>
  
-Fuck-off those .WEBMs:+Fuck-off those .WEBMs. ''copy'' here copies those streams, so they're no reencoded, it's just changing the container:
  
 <code>ffmpeg -i [input].webm -acodec copy -vcodec copy [output].mkv</code> <code>ffmpeg -i [input].webm -acodec copy -vcodec copy [output].mkv</code>
 +
 +So if you wanted to copy the video stream and just reencode/change the audio, for example:
 +
 +<code>ffmpeg -i [input].[ext] -acodec aac -vcodec copy [output].[ext]</code>
  
 === Multiple === === Multiple ===
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 <code>for i in *.mp3; do ffmpeg -i "$i" -c:a libvorbis -q:a 4 -map a "${i%.*}.ogg"; done</code> <code>for i in *.mp3; do ffmpeg -i "$i" -c:a libvorbis -q:a 4 -map a "${i%.*}.ogg"; done</code>
  
-You can use the wildcard ''*'' in the file extension to, so if you've got a mix of .mkv and .mp4 files from Youtube you can do. say:+You can use the wildcard ''*'' in the file extension too, so if you've got a mix of .mkv and .mp4 files from Youtube you can do. say:
  
 <code>for i in *.m*; do ffmpeg -i "$i" "${i%.*}.ogv"; done</code> <code>for i in *.m*; do ffmpeg -i "$i" "${i%.*}.ogv"; done</code>
ffmpeg.txt · Last modified: 2025/04/10 23:33 by rjt