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So I have multiple videos of the same scenery from different angles. These are stored as separate files. Can I combine these as multiple video streams within one file?
For example I know this is possible with MKV, I just don't know how to "join" them.
Is this possible using ffmpeg? If so, which command sequence do I use? If not, what other application would be able to do this?
Yes, this is possible using ffmpeg and the mkv container.
An example command sequence would be:
ffmpeg -i input1 -i input2 -c copy -map 0 -map 1 output.mkv
Breaking down the command:
-i input1 This selects the first input file. Could be something like my video_track1.mov.-i input2 Here you can specify the second input file. You can add another entry -i input3 if you have more input videos. I don't know what the maximum amount of videos is you can place in one mkv container.-c copy This copies all the streams (audio and video) in their original encoding.-map 0 This maps all the streams (audio and video) of the first input file to the first track of the output file.-map 1 This maps all the streams (audio and video) of the second input file to the second track of the output file.More information on the -map option can be found in the documentation of ffmpeg.
-ss option. Please edit your question with the addition and add an answer yourself including the ffmpeg code if you find that it works. This will help future visitors.
Oct 21, 2014 at 7:56
ffmpeg -fflags +genpts -i input1_no_ts.avi -c copy input1.mp4 and ffmpeg -fflags +genpts -i input2_no_ts.avi -c copy input2.mp4
Aug 16, 2022 at 13:43
'map' selects input sources, files in this case. Your command combines all the tracks into a single stream, not separate ones as desired.
map does not combine streams; it can only select input streams (not files).