I have two halves of a single show in two .MP4 files, encoded in H264. I would like to join them without re-encoding.
Is this possible?
I managed to create a joined video as a Quicktime file (.mov) using Quicktime Pro, but then Quicktime Pro will not convert it back to .MP4 without re-encoding. This may be because looking inside the .mov file, the two H264 videos are in there still separated as individual “objects”.
I am also struggling with MPEG StreamClip without reaching a real solution. But I may have missed something.
Note that I do not have the same issue with MPEG2 files. I can export them to a .MPEG container or a .TS file for example, and then I can join them without re-encoding using MPEG Streamclip.
Any suggestion welcome, preferably using Mac software.
Solution:
ffmpeg -i f1.mp4 -c copy -bsf h264_mp4toannexb f1.tsffmpeg -i f2.mp4 -c copy -bsf h264_mp4toannexb f2.tsffmpeg -i 'concat:f1.ts|f2.ts' -c copy -bsf aac_adtstoasc f3.mp4