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I am new to OpenCV, and I want write Mat images into video using VideoWriter on Ubuntu 12.04. But when constructing VideoWriter, errors came out.
It seems that OpenCV invoke ffmpeg API using default parameters and ffmpeg invoke x264 using its default parameters. Then these setting is broken for libx264. Thus the "Could not open codec 'libx264'" error.
Anyone has ideas to solve this problem?
More specifically:
anyone knows where and how OpenCV invoke ffmpeg API?
how to change ffmpeg default settings using code, hopefull, can be (...)