Pavel <[email protected]> added the comment: just a side note about my experience about libswscale and libavcodec. avcodec has arm optimizations for encoders/decoders but swscale destroys it all if libavcodec+libswscale used to decode/convert/scale pictures on mobile devices: colorspace conversion or scaling takes way more cpu than video decoding. I think at some point there was a message by Siarhei Siamashka and his patch had jit optimized version of most common csp conversion routines for mobiles (probably i420/yv12->r565). His code had identical interface to swscale api. I believe it's now part vlc distribution. Ok, I just found it, it is here: http://bit.ly/9FFz65 It appears to be swscale-like scaler for yuv images, no csp though.
________________________________________________ FFmpeg issue tracker <[email protected]> <https://roundup.ffmpeg.org/issue2113> ________________________________________________
