[FFmpeg-devel] [PATCH 4/4] avcodec/pngdec: use memcpy instead of byte loops for P frames.

Christophe Gisquet christophe.gisquet at gmail.com
Wed Dec 3 18:39:12 CET 2014


2014-12-03 18:32 GMT+01:00 Benoit Fouet <benoit.fouet at free.fr>:
> When the overhead here is high, then it means that we are going to perform a
> lot on the frame itself, looping using byte buffers.
> I believe this is a good compromise (and also I had up to 20% better
> performances on the APNG samples I have).

I have just benchmarked on a few animated pngs, and it's
systematically much better here.

OK then.


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