XviD四個(gè)壓片參數(shù)的不同壓制效果測(cè)試解析

1、在XviD中，Con figuration 里面各項(xiàng)參數(shù)的設(shè)置，將會(huì)對(duì)成品產(chǎn)生細(xì)微的影響，各個(gè) 參數(shù)的具體含義請(qǐng)參看DGWXX勺XviD1.0參數(shù)詳解；本文將結(jié)合實(shí)際的壓片成果 對(duì)其中各項(xiàng)參數(shù)得到的影象畫(huà)面進(jìn)行討論：片源：第六屆中韓歌會(huì)片斷（HDTX）1024 x 576為了得到一個(gè)相對(duì)公平的測(cè)試結(jié)果，現(xiàn)在決定按照相同的設(shè)置進(jìn)行同一片源的壓制，唯一不同的設(shè)置將在下面詳細(xì)說(shuō)明：相同設(shè)置部分壓制工具：Gordia n Kn ot 0.33.1壓縮編碼：XviD 1.03量化方式：hvs-best搜尋寬度：VHQ4 wide searchQuantization 設(shè)置：1, 2, 1 , 5, 1

2、, 31分辨率：740 x 416目標(biāo)體積：139MbAVS濾鏡：降糙關(guān)閉不同設(shè)置部分下面我們將分別開(kāi)啟 Quarter Pixel （以下簡(jiǎn)稱 QF）、Global Motion Compensation（以下簡(jiǎn)稱GMC、僅僅使用B-VOFs和關(guān)閉B-VOFs四個(gè)不同參數(shù)進(jìn)行測(cè)試；得到的 結(jié)果如下：1、開(kāi)啟QP成品的DRF評(píng)測(cè)如下：FourCC: XVIDCodec: XviD0037Resolutio n: Width: 740 Height: 416 Frame Rate: 23.976 frames per sec ondThe Video has 8472 frames 00:05:

3、53 Average Frame quality is HIGHAverage DRF/qua ntizer is 2.38Sta ndard Deviati on: Quality is HIGHStd. Deviatio n is 0.54Image Resolution is HIGHThe file has Packeted Frames!There are NO frame drops ( NO drops is betterRecome nded Resoluti on: 800x448仃 arget DRF/qua ntizer=2.8The filesize can be sm

4、aller!Performa nee Caracteristics:This video seems to have too FEW Keyframes. May degrade image quality and seek ing.Macroblocks per frame: 1196 ( Poor Playback in Slow Computers, PIII450 or better requiredDRF9:00.0%Kilobits per See ond: 2971.32Kilobits per Frame: 123.80Kilobits per Maerobloek: 0.10

5、4Bits per Pixel: 0.41Frame Type Statistics :I Frames: 0.42%P Frames: 63.07%B Frames: 36.51%S Frames: 0.00%N Frames: 0.00%(More Adva need Codecs use B and S framesFrame Quality Statisties :DRF=1 &2:512260.7%DRF=3:324638.5%DRF=4:680.8%DRF=5:00.0%DRF=6:00.0%DRF=7:00.0%DRF=8:00.0%DRF=9:00.0%KeyF/DeltaF:

6、0.43%KeyDRF4:5AverageKeyDRF:1.86MAXDRF:4AverageDRF:2.38Deviatio n:0.54影片的第3932幀截圖如下:2、使用GMCDRF評(píng)測(cè):FourCC: XVIDCodec: XviD0037Resolutio n: Width: 740 Height: 416 Frame Rate: 23.976 frames per sec ondThe Video has 8472 frames 00:05:53 Average Frame quality is HIGHAverage DRF/qua ntizer is 2.39Std. Devi

7、ation is 0.52Standard Deviation: Quality is HIGHImage Resolution is HIGHThe file has Packeted Frames!There are NO frame drops ( NO drops is betterRecome nded Resoluti on: 800x448仃 arget DRF/qua ntizer=2.8The filesize can be smaller!Performa nee Caracteristics:This video seems to have too FEW Keyfram

8、es. May degrade image quality and seek ing.Macroblocks per frame: 1196 ( Poor Playback in Slow Computers, PIII450 or better requiredThe Width is not multiple of 32. May degrade performa nee in some systems.Kilobits per Sec ond: 2971.29Kilobits per Frame: 123.80Kilobits per Macroblock: 0.104Bits per

9、Pixel: 0.41Frame Type Statistics :I Frames: 0.42%Deviati on:0.52P Frames: 36.84%B Frames: 36.95%S Frames: 25.79%N Frames: 0.00%(More Adva need Codecs use B and S framesFrame Quality Statistics :DRF=1 &2:508560.3%DRF=3:329139.0%DRF=4:600.7%DRF=5:00.0%DRF=6:00.0%DRF=7:00.0%DRF=8:00.0%DRF=9:00.0%DRF9:0

10、0.0%KeyF/DeltaF:0.43%KeyDRF4:4AverageKeyDRF:1.89MAXDRF:4AverageDRF:2.39截圖:2、使用GMCDRF評(píng)測(cè):FourCC: XVIDCodec: XviD0037Resolution: Width: 740 Height: 416 Frame Rate: 23.976 frames per sec ondThe Video has 8472 frames 00:05:53 Average Frame quality is HIGHAverage DRF/qua ntizer is 2.39Sta ndard Deviatio n

11、: Quality is HIGHStd. Deviation is 0.52Image Resolution is HIGHThe file has Packeted Frames!There are NO frame drops ( NO drops is betterRecome nded Resolutio n: 800x448(Target DRF/qua ntizer=2.8The filesize can be smaller!Performa nee Caracteristics:This video seems to have too FEW Keyframes. May d

12、egrade image quality and seek ing.Macroblocks per frame: 1196 ( Poor Playback in Slow Computers, PIII450 or better requiredThe Width is not multiple of 32. May degrade performance in some systems.Kilobits per Second: 2971.29Kilobits per Frame: 123.80Kilobits per Macroblock: 0.104Bits per Pixel: 0.41

13、Frame Type Statistics :I Frames: 0.42%P Frames: 36.84%B Frames: 36.95%S Frames: 25.79%N Frames: 0.00%(More Adva need Codecs use B and S framesFrame Quality Statistics :DRF=1 &2:508560.3%DRF=3:329139.0%DRF=4:600.7%DRF=5:00.0%DRF=6:00.0%DRF=7:00.0%DRF=8:00.0%DRF=9:00.0%DRF9:00.0%KeyF/DeltaF:0.43%KeyDR

14、F4:4MAXDRF: 4AverageDRF:2.39Deviati on:0.52截圖:2、使用GMCDRF評(píng)測(cè):FourCC: XVIDCodec: XviD0037Resolution: Width: 740 Height: 416 Frame Rate: 23.976 frames per sec ondThe Video has 8472 frames 00:05:53 Average Frame quality is HIGHAverage DRF/qua ntizer is 2.39Sta ndard Deviatio n: Quality is HIGHStd. Deviat

15、ion is 0.52Image Resolution is HIGHThe file has Packeted Frames!There are NO frame drops ( NO drops is betterRecome nded Resolutio n: 800x448(Target DRF/qua ntizer=2.8The filesize can be smaller!Performa nee Caracteristics:This video seems to have too FEW Keyframes. May degrade image quality and see

16、k ing.Macroblocks per frame: 1196 ( Poor Playback in Slow Computers, PIII450 or better requiredThe Width is not multiple of 32. May degrade performance in some systems.Kilobits per Second: 2971.29Kilobits per Frame: 123.80Kilobits per Macroblock: 0.104Bits per Pixel: 0.41Frame Type Statistics :I Fra

17、mes: 0.42%P Frames: 36.84%B Frames: 36.95%S Frames: 25.79%N Frames: 0.00%(More Adva need Codecs use B and S framesFrame Quality Statistics :DRF=1 &2:508560.3%DRF=3:329139.0%DRF=4:600.7%DRF=5:00.0%DRF=6:00.0%DRF=7:00.0%DRF=8:00.0%DRF=9:00.0%DRF9:00.0%KeyF/DeltaF:0.43%KeyDRF4:4AverageKeyDRF:1.89MAXDRF

18、: 4AverageDRF:2.39Deviatio n:0.52截圖:2、使用GMCDRF評(píng)測(cè):FourCC: XVIDCodec: XviD0037Resolution: Width: 740 Height: 416 Frame Rate: 23.976 frames per sec ondThe Video has 8472 frames 00:05:53 Average Frame quality is HIGHAverage DRF/qua ntizer is 2.39Std. Deviation is 0.52Standard Deviation: Quality is HIGHI

19、mage Resolution is HIGHThe file has Packeted Frames!There are NO frame drops ( NO drops is betterRecome nded Resolutio n: 800x448(Target DRF/qua ntizer=2.8The filesize can be smaller!Performa nee Caracteristics:This video seems to have too FEW Keyframes. May degrade image quality and seek ing.Macrob

20、locks per frame: 1196 ( Poor Playback in Slow Computers, PIII450 or better requiredThe Width is not multiple of 32. May degrade performance in some systems.Kilobits per Second: 2971.29Kilobits per Frame: 123.80Kilobits per Macroblock: 0.104Bits per Pixel: 0.41Frame Type Statistics :I Frames: 0.42%P

21、Frames: 36.84%B Frames: 36.95%S Frames: 25.79%N Frames: 0.00%(More Adva need Codecs use B and S framesFrame Quality Statistics :DRF=1 &2:508560.3%DRF=3:329139.0%DRF=4:600.7%DRF=5:00.0%DRF=6:00.0%DRF=7:00.0%DRF=8:00.0%DRF=9:00.0%DRF9:00.0%KeyF/DeltaF:0.43%KeyDRF4:4AverageKeyDRF:1.89MAXDRF: 4AverageDR

22、F:2.39Deviatio n:0.52截圖:3、關(guān)閉QP GMC僅僅使用 B-VOPs進(jìn)行壓制B-VOPs設(shè)置如下：3; 1.2 ; 0.6 ;DRF評(píng)測(cè):FourCC: XVIDCodec: XviD0037Resolutio n: Width: 740 Height: 416 Frame Rate: 23.976 frames per sec ondThe Video has 8472 frames 00:05:53 Average Frame quality is HIGHAverage DRF/qua ntizer is 2.40Std. Deviation is 0.53Stan

23、dard Deviation: Quality is HIGHImage Resolution is HIGHThe file has Packeted Frames!There are NO frame drops ( NO drops is betterRecome nded Resoluti on: 784x448仃 arget DRF/qua ntizer=2.8The filesize can be smaller!Performa nee Caracteristics:This video seems to have too FEW Keyframes. May degrade i

24、mage quality and seek ing.Macroblocks per frame: 1196 ( Poor Playback in Slow Computers, PIII450 or better requiredThe Width is not multiple of 32. May degrade performa nee in some systems.Kilobits per Sec ond: 2971.29Kilobits per Frame: 123.80Kilobits per Macroblock: 0.104Bits per Pixel: 0.41Frame

25、Type Statistics :I Frames: 0.42%P Frames: 62.63%B Frames: 36.95%S Frames: 0.00%N Frames: 0.00%(More Adva need Codecs use B and S framesFrame Quality Statistics :DRF=1 &2:502759.6%DRF=3:334439.6%DRF=4:650.8%DRF=5:00.0%DRF=6:00.0%DRF=7:00.0%DRF=8:00.0%DRF=9:00.0%DRF9:00.0%KeyF/DeltaF:0.43%KeyDRF4:4Ave

26、rageKeyDRF:1.89MAXDRF:4AverageDRF:2.40截圖:4、關(guān)閉QP GMC B-VOPs，僅僅使用IF和PF進(jìn)行壓制DRF評(píng)測(cè):FourCC: XVIDCodec: XviD0037Resolution: Width: 740 Height: 416 Frame Rate: 23.976 frames per sec ondThe Video has 8474 frames 00:05:53 Average Frame quality is HIGHAverage DRF/qua ntizer is 2.65Sta ndard Deviatio n: Quality

27、 is HIGHStd. Deviation is 0.49Image Resolution is HIGHThere are NO frame drops ( NO drops is betterRecome nded Resolutio n: 752x416 (Target DRF/qua ntizer=2.8The filesize can be smaller!Performa nee Caracteristics:This video seems to have too FEW Keyframes. May degrade image quality and seek ing.Mac

28、roblocks per frame: 1196 ( Poor Playback in Slow Computers, PIII450 or better requiredThe Width is not multiple of 32. May degrade performance in some systems.Kilobits per Second: 2971.21Kilobits per Frame: 123.77Kilobits per Macroblock: 0.103Bits per Pixel: 0.41Frame Type Statistics :I Frames: 0.45%P Frames: 99.55%B Frames: 0.00%S Frames: 0.00%N Frames: 0.00% (More Adva nee