![]() ![]() My assumption is that these files are incompatible with each other in some way that prevents them from being concatenated using -codec copy (without re-encoding). The same video frame then stays on, with no sound, for an extra ~30 minutes (end time shown in VLC). What results is a file which plays till the end of main.mp4, and then the video freezes, and I hear the audio of outro.mp4. I would like to be able to concatenate, without re-encoding, main.mp4, followed by outro.mp4, using the following commands: echo "file 'main.mp4'" > concat.txt (values that differ: h264 properties, yuv, fps, tbr, tbn, and tbc) Using ffmpeg, I would like to convert a video file such that its video stream changes like so:
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