On 2015-10-10 23:06, Ganesh Ajjanagadde wrote: > ... Is the greatest common denominator (yes, I had to look that up) actually used anywhere that is slow and needs to be fast?
All the uses of 'av_gcd' found by grep appear be dealing with timing. I see framerate, timebase, scale. I do see uses in rational.c which implies uses through AVRational, how many codecs are using rational numbers in their processing? I think this is a case of premature optimization. On the other hand if people want to replace the current algorithm then who am I to stop them.
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