[FFmpeg-user] map_channel without re-encoding

Elliott Balsley elliottbalsley at gmail.com
Thu Apr 4 02:35:14 EEST 2019

Is this possible?  I have a WAV file with a single track containing 8 channels.  I want to convert it to an MOV with a 5.1 track and a stereo track.  The below command works, but if I use -c:a copy then it makes both output tracks 7.1.

ffmpeg -I input.wav -vn -c:a pcm_s24le -map 0:0 -map 0:0 -map_channel 0.0.0:0.0.0 -map_channel 0.0.1:0.0.1 -map_channel 0.0.2:0.0.2 -map_channel 0.0.3:0.0.3 -map_channel 0.0.4:0.0.4 -map_channel 0.0.5:0.0.5 -map_channel 0.0.6:0.1.0 -map_channel 0.0.7:0.1.1 -y output.mov


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