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I want to write a small program with help of ffmpeg. I want to process a video by cut the video into several parts, left part, right part…etc.
How can I do it using ffmpeg? By the way, are there any documentation explain the API of the ffmpeg?
You can use ffmpeg crop filter to “cut” part of the video and save it to a file. The following example saves the bottom right quarter of the input image (taken from the link):
See doc/examples/filtering.c for an example of how to do it in C.