New answers tagged mencoder
Something like this should work with the proper parameters for each case: Note: The original answer was posted in this link: How can I crop a video with ffmpeg? which originally posted by me and edited several times in order to update it to the newest options in the most recent versions of ffmpeg. Many thanks to slhck, Jonathan., Anton Rudeshko, ...
This solved the matter: http://stackoverflow.com/a/22324018/5014767 melt is a great command line utility for this. Here is the page
In addition to Maythux's answer, from : A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow one to concatenate video by merely concatenating the files containing them. I.e. the videos to be concatenated use one of the abovementioned video containers (to which I'll add MPEG-4 Part 14 for personal experience), you could simply: cat video1.ext ...
You can do it using ffmpeg: ffmpeg -i concat:"input1.mp4|input2.mp4" output.mp4 reference and more info
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