ffmpeg copy mp4 track 2 audio to mp4 track 1

vcodec copy - this means keep the video codec from the source file acodec copy - this means keep the audio codec from the source file Don’t want to read a whole article? The short answer is install FFMPEG and use this command: ffmpeg -i source_video.mp4 -i source_audio.wav -acodec copy -vcodec copy -map 0:v:0 -map 1:a:0 final_video.movįFMPEG is a a terminal program, so you’ll need to go to the Utillities folder inside of the applications folder and install homebrewįrom there you can enter the command like so: ffmpeg -i /path/to/movie/file.mp4 -i /path/to/audio/file.wav -acodec copy -vcodec copy -map 0:v:0 -map 1:a:0 combined_file.mov This is very useful as a way to avoid loss of quality for the video. How do I mux them together so they both play? ffmpeg -i 'The Bunker.To replace audio in a video without having to re-encode the video you can use a tool called ffmpeg. If I flipped which map comes second, that is the stream that is audible in the output. I have used the following but again its seems to ignore the first -map option. I've gotten close now, but still not right.

What other options can I include to get my audio tracks? But, when I did the conversion my audio commentary track/source got lost in conversion. Basically I recorded game footage and the original file had both the in game sounds as well as the mic recording commentary on top. ffmpeg -i 'The Bunker.avi' -vcodec h264 TheBunkerMix.mp4īut, the resultant file only had one track/source. I have successfully converted the video without loss of quality with the following. When I pop the file into avimux, I can clearly see two audio tracks/sources. The video is using dxtory video codec and unknown audio codec.

Ffmpeg copy mp4 track 2 audio to mp4 track 1