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| ffmpeg [2023/08/27 20:51] – FFmpeg Explorer rjt | ffmpeg [2025/04/14 16:40] (current) – more info on 'copy' ... mb don't need to bang on so much ... 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> |
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| Fuck-off those .WEBMs: | Fuck-off those .WEBMs. ''copy'' here copies those streams, so they're no reencoded, it's just changing the container: |
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| <code>ffmpeg -i [input].webm -acodec copy -vcodec copy [output].mkv</code> | <code>ffmpeg -i [input].webm -acodec copy -vcodec copy [output].mkv</code> |
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| | A more compact way is to use ''-c'', which will copy over all streams (there's also ''-c:a'' (audio) ''-c:v'' (video) ''-c:s'' (subtitles)…: |
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| | <code>ffmpeg -i [input].webm -c copy [output].mkv</code> |
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| | So if you wanted to copy the video stream and just reencode/change the audio, for example: |
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| | <code>ffmpeg -i [input].[ext] -acodec aac -vcodec copy [output].[ext]</code> |
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| === Multiple === | === Multiple === |
| <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> |
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| 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: |
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| <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> |
