Hello list, I have an MXF file with one video track and 8 audio track. I'm trying to reencode it to MP4 while preserving all existing tracks and also adding a mixdown of all audio tracks as the 9th track. Right now I'm only able to do this in 2 separate FFmpeg calls and I'm wondering whether one can do it in one call.
This is how I do it right now: # Create mixdown MP4 ffmpeg -i audio_8.mxf \ -vn -c:a libfdk_aac -b:a 128k \ -filter_complex amix=inputs=8:dropout_transition=2 \ -y mixdown.mp4 # Merge and reencode video ffmpeg -i audio_8.mxf -i mixdown.mp4 \ -c:v libx264 -b:v 700k -c:a libfdk_aac -b:a 128k \ -map 0 -metadata:s:a:0 language=abw -metadata:s:a:1 language=afg \ -metadata:s:a:2 language=ago -metadata:s:a:3 language=aia \ -metadata:s:a:4 language=ala -metadata:s:a:5 language=alb \ -metadata:s:a:6 language=and -metadata:s:a:7 language=are \ -map 1 -metadata:s:a:8 language=eng \ -y finished.mp4 best, Steve Dierker -- -- Mail: [email protected] Jabber: [email protected] Skype: bigzed625 _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
