Hi, > i have a question what is the recommended way for transcoding only audio > and keep video as is. > > I tried this with command: > ffmpeg -n -i something.mkv something_else.mkv -map 0 -vcodec copy -scodec > copy -acodec ac3 -b:a 640k > > The thing is that using this command with a 10+GB file the process is very > very slow and it would take more than 1 day. > > I tried manual to remove audio from mkv, encode it in ac3 and repack it > back which was done in an h. > > Do you have any idea what can be improved?
You need the output options before the output for them to have an effect. The command that takes 1 day is transcoding everything using default settings for mkv (including audio) and ignoring the trailing options. Regards, Ted Park _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
