top | item 30201513 (no title) mbilker | 4 years ago ffmpeg can copy streams without transcoding. For example: ffmpeg -i input.m4a -c:a copy input.mp4 discuss order hn newest deadf00d|4 years ago In this case both mp4 and m4a (which are the same thing) use AAC. So no transcoding, but mp3 is not. So in the case of mp4 > mp3 it need a complete re-encoding of the audio.
deadf00d|4 years ago In this case both mp4 and m4a (which are the same thing) use AAC. So no transcoding, but mp3 is not. So in the case of mp4 > mp3 it need a complete re-encoding of the audio.
deadf00d|4 years ago