Breaking Eggs And Making Omelettes

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Video Encoding Tests

July 25th, 2008 by Multimedia Mike

In case you don’t carefully track FFmpeg development, much recognition goes out to Michael for a lot of work on the H.264 decoder. Thanks to his efforts over the past week or so, I have been able to add about 2 dozen more H.264 conformance tests. Presently, FFmpeg can decode 92/136 of the suite’s vectors across all supported configurations.

Also, finally, I have started to add encoding tests to FATE. The first test is designated idroq-video-encode. I was stuck on this for awhile while I tried to understand what sort of test material I should use. I eventually realized that there are perfectly adequate (and stunningly complicated) images already generated by FFmpeg’s videogen.c program that is built and run by ‘make test’. If you are not familiar, they look like this:


FFmpeg vsynth1 image

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