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

Source: Internet
Author: User

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 )--

 

 

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.