摘自DOOM9討論區
http://forum.doom9.org/showthread.php?threadid=64789&perpage=20&pagenumber=1有興趣的可以來看看 最下面附哈利波特MOV 600K的比較片段
明顯RV9最好 3IVX......
code:--------------------------------------------------------------------------------
| Codec| Settings | Size|
|------------------|------------|-----------|
| Xvid Devapi4 | 500 Kbps | 7710 Ko |
| Divx 5.1.1 b2| 500 Kbps | 7598 Ko |
| VMV9 | 500 Kbps | 7708 Ko |
| RV9 | 500 Kbps | 7725 Ko |
| VP6 | 500 Kbps | 7836 Ko |
|------------------|------------|-----------|
| Xvid Devapi4 | 600 kbps | 9210 Ko |
| Divx 5.1.1 b2| 600 kbps | 9096 Ko |
| VMV9 | 600 kbps | 9258 Ko |
| RV9 | 600 kbps | 9225 Ko |
| VP6 | 600 kbps | 9252 ko |
|------------------|------------|-----------|
| Xvid Devapi4 | 700 kbps | 10708 Ko |
| Divx 5.1.1 b2| 700 kbps | 10600 Ko |
| VMV9 | 700 kbps | 10794 Ko |
| RV9 | 700 kbps | 10530 Ko |
| VP6 | 700 kbps | 10812 Ko |
|------------------|------------|-----------|
| Xvid Devapi4 | 800 kbps | 12308 Ko |
| Divx 5.1.1 b2| 800 kbps | 12098 Ko |
| VMV9 | 800 kbps | 12236 Ko |
| RV9 | 800 kbps | 11902 Ko |
| VP6 | 800 kbps | 12268 Ko |
|------------------|------------|-----------|
| Xvid Devapi4 | 900 kbps | 13706 Ko |
| Divx 5.1.1 b2| 900 kbps | 13600 Ko |
| VMV9 | 900 kbps | 13870 Ko |
| RV9 | 900 kbps | 13517 Ko |
| VP6 | 900 kbps | 13830 Ko |
|------------------|------------|-----------|
| Xvid Devapi4 | 1000 kbps | 15304 Ko |
| Divx 5.1.1 b2| 1000 kbps | 15100 Ko |
| VMV9 | 1000 kbps | 15414 Ko |
| RV9 | 1000 kbps | 15069 Ko |
| VP6 | 1000 kbps | 15268 Ko |
|------------------|------------|-----------|
--------------------------------------------------------------------------------
~~ codecs Configurations and scripts used ~~
Script AviSynth
It's a very simple and usual AviSynth Script
code:--------------------------------------------------------------------------------Video=Mpeg2Source("G:\Mes dossiers\B.A\Harry Potter\azerty.d2v")
Video=Trim(Video,70,3145)
Video=Crop(Video,16,76,688,426)
Video=Convolution3D(Video,0,3,4,3,4,3,0)
Video=LanczosResize(Video,640,272)
Return(Video)--------------------------------------------------------------------------------
Script PSNR and PSNR Overall for DivX
code:--------------------------------------------------------------------------------# --> Video Opening <--
source=AviSource("G:\Mes dossiers\B.A\Harry Potter\azerty.avs")
source=ConvertToYUY2(source)
video=AviSource("G:\Mes dossiers\B.A\Harry Potter\DivX-500.avi")
video=ConvertToYUY2(video)
# --> PSNR analysis <--
Compare(video,source,"","PSNR-DivX-500.txt")--------------------------------------------------------------------------------
Script SSIM for DivX
code:--------------------------------------------------------------------------------# --> Video Opening <--
source=AviSource("G:\Mes dossiers\B.A\Harry Potter\azerty.avs")
source=ConvertToYV12(source)
video=AviSource("G:\Mes dossiers\B.A\Harry Potter\DivX-500.avi")
video=ConvertToYV12(video)
# --> PSNR analysis <--
return SSIM(source,video,"results.csv","SSIM-DivX-500.txt",lumimask=true)--------------------------------------------------------------------------------
Script VQM for DivX
code:--------------------------------------------------------------------------------# --> Video Opening <--
source=AviSource("G:\Mes dossiers\B.A\Harry Potter\azerty.avs")
source=ConvertToYV12(source)
video=AviSource("G:\Mes dossiers\B.A\Harry Potter\DivX-500.avi")
video=ConvertToYV12(video)
# --> PSNR analysis <--
return VqmCalc(source,video,"VQM-DivX-500.txt")--------------------------------------------------------------------------------
WMV9
Adjustments with VirtualDubMod: Maximum quality + Complex + 2 pass
Post-Process desactived*
RV9 EHQ
Adjustments with RMFactory: EHQ 100 + MSL 60 sec + New VBR
Post-Process ???*
code:--------------------------------------------------------------------------------
xsi:schemaLocation="http://ns.real.com/tools/audience.2.0
http://ns.real.com/tools/audience.2.0.xsd">
600000 6000000
rn-videocodec-realvideo
rv9
100
16000
false
vbrBitrate
60
25
10
false
--------------------------------------------------------------------------------
XviD Devapi4
Adjustments with VDM: Ultra high + h263 + vhq4 + chroma motion + trellis + bframe 1/150/75 + 2 pass
QPel decrease PSNR with this trailer, Bframe 1/150/75 is the best setting for PSNR test, GMC doesn't have a great influence ...
Post-Process desactived*
DivX Pro 5.1.2
Adjustments with VDM: Bframe + Slowest + Bitrate Modulation "Slow Movie" + 3 Pass
Post-Process desactived*
VP6
Adjustments with VDM: Best quality 2 pass VBR
Post-Process desactived*
code:--------------------------------------------------------------------------------
Local file playback (VBR)
Noise Reduction 0
Autokeyframe ON
Max Frames Btw Keys 120
Undershoot 90
Adjusted Quantizer ON
Minimum 2
Maximum 40
Temporal Resampling ON
Down watermark 20
Spatial Resampling ON
Down watermark 20
Up watermark 35
Variability 100
Min Section 10
Max Section 1000
--------------------------------------------------------------------------------
*Post Process decrease PSNR for all codec in this test with this trailer ...
~~ Visual test ~~
http://jfl1974.free.fr/Video/RV9-600.rarhttp://jfl1974.free.fr/Video/VP6-600.rarhttp://jfl1974.free.fr/Video/DivX-600.rarhttp://jfl1974.free.fr/Video/WMV9-600.rarhttp://jfl1974.free.fr/Video/XviD-600.rarhttp://jfl1974.free.fr/Video/3ivX-600.rarfor best quality with WMV9 install this reg
http://jfl1974.free.fr/Video/PP-WMV9.reg
