> Hi, > > On Thu, Sep 1, 2016 at 7:00 AM, Ali KIZIL <aliki...@gmail.com> wrote: > >> Hi Oliver, >> >> I just setup my DDR3 RAM speed to 2133 Mhz on i7 4960x server. It dosnt >> make a much difference. FPS is still waiving 41-44 fps for UHD P010LE HEVC >> Main 10 encoding. >> >> Also, rawvideo P010LE encodding waiving 39-42 fps. For your note;while FPS >> waves from 39-42 fps for YUV420P to P010LE, YUV420P to YUV420P10LE fps is >> like 75-76: > > > I think this is expected, the p010le conversion is C (no SIMD). The > yuv420p10le conversion is using x86 SIMD (probably AVX). > > To fix this, add x86 SIMD implementations of the p010le conversions in > swscale. Better yet, add direct conversions from yuv420p10 (which I assume > is the internal format of your actual source after decoding?) to p010le, > first C and then later x86 SIMD.
I think 40-50 FPS is quite a nice result for UHD with the plain stupid C implementation. Also, isn't the internal representation of YUV 10bit in swscale essentially yuv420p10 anyway, so the conversion already is as direct as it gets? > I have no idea why you would want to convert from yuv420p to p010le or > yuv420p10le. I understand swscale supports it (it should) but I doubt > that's how you want to generate 10 bits content. P010 is the only YUV420 10bit format NVENC supports. > Ronald > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
