X264 encoding parameter big test: 08 subme and specified bit rate (1000 Kbps)

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.

Refer to the test: subme9.

 

Test video --

A (red): 720p animation fate/Zero 07. "Fate" for short ".

B (yellow): 720p animated hunter x hunter 07. Hxh for short ".

C (green): p animation my sister could not be so cute 11. "Oreimo" for short ".

F (Qing): 720p movie "need for speed 12: No storm" trailer. NFS for short ".

G (blue): 720p movie Transformers 3 trailer. "Tran3" for short ".

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

 

 

Ii. Test Results

 

2.1 Image Quality

 

Dssim curve (higher (longer), better )--

 

Pssim curve (higher (longer), better )--

 

 

2.2 Bit Rate

 

Kbps curve (the lower (shorter) the better )--

 

 

Transcoding speed: 2.3

 

FPS curve (higher (longer), better )--

 

PFPs curve (higher (longer), better )--

 

 

Iii. Summary

 

Because the bit rate is specified, the advantage of subme10 to save the bit rate is completely reflected, with SSIM increasing by about 0.2% on average. At the cost, the transcoding speed is reduced to about 80%.

Subme11 significantly reduced the transcoding speed (about 50% of subme9), but it was almost consistent with subme10 in terms of image quality and bit rate. Especially for P videos (C, H), SSIM decreases slightly while the bit rate increases slightly. Not worth it.

Subme10 is recommended.