[x265] [Bug]reconstruction yuv picture diff with HM decoder out

[zxy at rock-chips.com]

hi, x265 members
1. [Bug report]
We found that x265 (version 0.7+2-4b8901ae94ece1ac ) recon yuv data diff with HM decode out when config CQP mode with QP=34 and set rd=0 or 1 or 2, I think it's a serious bug!

with command like this 

--input F:\yuv\Samsung_1080p_25.yuv --input-res 1920x1080 --fps 24 -q 34 -o E:\out1.bin -r E:\rec1.yuv --psnr --rd 0

--input F:\yuv\Samsung_1080p_25.yuv --input-res 1920x1080 --fps 24 -q 34 -o E:\out1.bin -r E:\rec1.yuv --psnr --rd 1

--input F:\yuv\Samsung_1080p_25.yuv --input-res 1920x1080 --fps 24 -q 34 -o E:\out1.bin -r E:\rec1.yuv --psnr --rd 2 

2. [Proprose]
The x265 codec encodes video con-tent  using  a  fixed  quantization  step,  thus  leading to  a  variable bitrate  stream  which  may  not  be  suitable  for  the  many  multi-media  applications  where  a  constant  bandwidth  is  required. Therefore,  maybe adaptive quantization  step may be better.


I'm looking forward to you 
thks
zxy at rock-chips.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.videolan.org/pipermail/x265-devel/attachments/20140217/51d89905/attachment.html>