X264 encoding parameter big test: 06 subme and CRF (h)

I. Test content

 

Test Method --

X264 encoding parameter big test: Index stickers

Http://www.cnblogs.com/zyl910/archive/2011/12/14/x264_encode_param.html

 

Test parameter --

Subme: 9, 10, and 11. Sets the complexity of the subpixel motion estimation (motion estimation. The higher the value, the better.

CRF: 18 to 28, interval 1. The bitrate Control Method of the fixed bit rate coefficient (constant ratefactor. When QP uses a quantitative value as the target, while bitrate uses a file size as the target, CRF uses a "quality" as the target. The idea is to make CRF n provide the same visual quality as qp n, but the file is smaller. The unit of measurement for CRF values is "bit rate coefficient (ratefactor )".

Refer to the test: subme9, crf26.

 

Test video --

H (purple): 1080p movie coralreef.1080p (coral reef ). "Coral" for short ".

 

 

Ii. Test Results

 

2.1 Image Quality

 

Dssim curve (the higher the better )--

 

 

Pssim curve (the higher the better )--

 

 

 

2.2 Bit Rate

 

Kbps curve (the lower the better )--

 

Compression Ratio Curve (lower, better )--

 

 

Transcoding speed: 2.3

 

FPS curve (the higher the better )--

 

PFPs curve (the higher the better )--