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Old 15th April 2017, 12:29   #15  |  Link
Sagittaire
Testeur de codecs
 
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Join Date: May 2003
Location: France
Posts: 2,484
Quote:
Originally Posted by Ma View Post
On my i5 3450S (with enhanced turbo) x265 4K encoding speed was 1.06.
For curiosity I changed x265 to VS 2017 AVX version and the speed was 1.11. Then I used VS 2017 AVX PGO version and the speed was 1.15 (I added only '-v warning' to ffmpeg part to cleaner output).

Then I go to the decoding -- with included in benchmark ffmpeg the speed was 48 to 49, with Zeranoe ffmpeg 2017-04-11 it was 64, with compiled by GCC 7 today snapshot the speed was 66.

The speed difference in x265 encoding is normal, but it is surprising big difference in decoding speed.
Yes i know for x265, I will try to introduce script to use best x265 compilation for each CPU ... ;-)

Anyway your ffmpeg result is really big surprise. You have link for ffmpeg 64 bit with GCC7 compilation?
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Le Sagittaire ... ;-)

1- Ateme AVC or x264
2- VP7 or RV10 only for anime
3- XviD, DivX or WMV9
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