1.此评测仅仅是我个人压制参考用的,请无视threads=24谢谢。
2.因为是个人向,所以画质上与目前我常用的参数做对比,所以我是采用的x264_rev2274+704_tMod-v3-Lite.7z 中的10bit版:下载地址:
http://tmod.nmm-hd.org/x264/3.测试的时候采用指环王的片源
http://pan.baidu.com/share/link?shareid=218617&uk=3895737553HEVC视频采用自称2000K的版本(实际约1750K左右)
http://pan.baidu.com/share/link?shareid=217136&uk=38957375534.采用ABR 2PASS方式压制,具体参数是
pass1 --preset veryslow --pass 1 --bitrate 1750 --stats "D:\HI10P ainme\[philosophy-raws][Shakugan no Shana]\test.stats" --slow-firstpass --deblock 2:2 --keyint infinite --min-keyint 1 --bframes 12 --ref 8 --qcomp 0.81 --rc-lookahead 72 --aq-strength 0.65 --merange 32 --psy-rd 0.48:0.12 --no-dct-decimate --no-fast-pskip --non-deterministic --aq-mode 3 --fgo 3 --aq2-strength 0.5 --sar 1:1 pass2 --deblock 2:2 --keyint infinite --min-keyint 1 --bframes 12 --ref 8 --qcomp 0.81 --rc-lookahead 72 --aq-strength 0.65 --merange 32 --psy-rd 0.48:0.12 --no-dct-decimate --no-fast-pskip --non-deterministic --aq-mode 3 --fgo 3 --aq2-strength 0.5 --ratetol inf --sar 1:1
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然后就是对比了(下顺序是片源,x264 10bit压制,H265压制),谁能告诉我为何H.265的颜色不一致啊!!!!!!!!!!!!
截图方式统一为解码器解码(片源和x26410bit为LAV,H.265为官方解码器),渲染器统一为MADVR,chroma upsampling为jinc 4taps.
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抛开颜色问题,个人感觉上,对比起片源而言,细节上基本上抹杀的差不多了,H.265有着更多的banding(总感觉不像是编码时产生的,不知道是不是和调色有关),但是明显的block看起来比x264少,而且aq的分配能和x264维持在一个相近的水准上(我这aq3+HAQ比官方更好的AQ分配)。细节上不知道是不是调色的原因,H265也损失的更多。
其他对比图
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