On Mon, Apr 29, 2024 at 11:48:18 +0200, Michael Koch wrote: > Am 29.04.2024 um 11:28 schrieb turgut kalfaoğlu: > > Hi. I have an interesting case. I need to extract sound from multiple > > input files, combine those video files into one, and then re-insert the > > audio into the combined video file. > > > > $ ffmpeg -i resized/360_0233.MP4 -i resized/360_0234.MP4 -i > > resized/360_0235.MP4 -vn -map 0:a tmpsound.mp3
You explictly selected only the fist input with "-map 0:a". > Not tested, but I think it should work with the concat filter: > > ffmpeg -i resized/360_0233.MP4 -i resized/360_0234.MP4 -i > resized/360_0235.MP4 -lavfi [0][1][2]concat=n=3:v=0:a=1 -y tmpsound.mp3 I have a different interpretation of what "combine those into one" was supposed to mean. ;-) Turgut, can you be more precise? The three audio tracks, what shall happen with them? * Attach audio one after the other on the timeline (i.e. concatenate). * Insert all three audio tracks as separate parallel tracks into the resulting video. * Overlay all three audio tracks, so that you hear their sound simultaneously in the final track. Michael's solution is for problem no. 1. Cheers, Moritz _______________________________________________ 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".
