nightrhyme
22nd July 2004, 22:43
Just encoded a movie. Used Gknot 2-Pass. XviD: Quantizer MPEG,VHQ:4, Qpel and CM. Chose Size 3 CD's.
Used DRF Analyzer to analyze the result. But I need some help interpreting the result
It says:
Average Frame quality is LOW [Average DRF/quantizer is 5.13]
Standard Deviation: Quality is LOW
How come. What could I do to better this ? And is this analysis to be trusted ? Does the Report tell you guys anything about what I could do better in the encoding process ?
Thanx in advance
Filesize: 2.203.594.752 bytes, Length: 02:43:10
DivX DRF Analyzer v0.9.5 Report!
File Name: D:\Godfather 3\godfatherIII.avi
FourCC: XVID
Codec: XviD0035
Resolution: [ Width: 692 Height: 388 ]
Frame Rate: 25.000 frames per second
The Video has 244775 frames [ 02:43:10 ]
Average Frame quality is LOW [Average DRF/quantizer is 5.13]
Standard Deviation: Quality is LOW [Std. Deviation is 3.61]
Image Resolution is HIGH
The file has Packeted Frames!
There are NO frame drops ( NO drops is better )
This video may have some frames with VERY POOR Quality!
Recomended Resolution: [496x272] (Target DRF/quantizer=2.8)
The filesize should be larger!
Performance Caracteristics:
Macroblocks per frame: 1032 ( Poor Playback in Slow Computers, PIII450 or better required )
The Width is not multiple of 32. May degrade performance in some systems.
Kilobits per Second: 1552.84
Kilobits per Frame: 62.11
Kilobits per Macroblock: 0.060
Bits per Pixel: 0.24
Frame Type Statistics :
I Frames: 0.74%
P Frames: 50.21%
B Frames: 49.05%
S Frames: 0.00%
N Frames: 0.00%
(More Advanced Codecs use B and S frames)
Frame Quality Statistics :
DRF=1&2: 42493 17.5%
DRF=3: 40191 16.5%
DRF=4: 47677 19.6%
DRF=5: 31033 12.8%
DRF=6: 6959 2.9%
DRF=7: 33159 13.6%
DRF=8: 4288 1.8%
DRF=9: 4418 1.8%
DRF>9: 32751 13.5%
KeyF/DeltaF: 0.74%
KeyDRF<4: 1659
KeyDRF=4: 4
KeyDRF>4: 143
AverageKeyDRF: 2.01
MAXDRF: 31
AverageDRF: 5.13
Deviation: 3.61
Used DRF Analyzer to analyze the result. But I need some help interpreting the result
It says:
Average Frame quality is LOW [Average DRF/quantizer is 5.13]
Standard Deviation: Quality is LOW
How come. What could I do to better this ? And is this analysis to be trusted ? Does the Report tell you guys anything about what I could do better in the encoding process ?
Thanx in advance
Filesize: 2.203.594.752 bytes, Length: 02:43:10
DivX DRF Analyzer v0.9.5 Report!
File Name: D:\Godfather 3\godfatherIII.avi
FourCC: XVID
Codec: XviD0035
Resolution: [ Width: 692 Height: 388 ]
Frame Rate: 25.000 frames per second
The Video has 244775 frames [ 02:43:10 ]
Average Frame quality is LOW [Average DRF/quantizer is 5.13]
Standard Deviation: Quality is LOW [Std. Deviation is 3.61]
Image Resolution is HIGH
The file has Packeted Frames!
There are NO frame drops ( NO drops is better )
This video may have some frames with VERY POOR Quality!
Recomended Resolution: [496x272] (Target DRF/quantizer=2.8)
The filesize should be larger!
Performance Caracteristics:
Macroblocks per frame: 1032 ( Poor Playback in Slow Computers, PIII450 or better required )
The Width is not multiple of 32. May degrade performance in some systems.
Kilobits per Second: 1552.84
Kilobits per Frame: 62.11
Kilobits per Macroblock: 0.060
Bits per Pixel: 0.24
Frame Type Statistics :
I Frames: 0.74%
P Frames: 50.21%
B Frames: 49.05%
S Frames: 0.00%
N Frames: 0.00%
(More Advanced Codecs use B and S frames)
Frame Quality Statistics :
DRF=1&2: 42493 17.5%
DRF=3: 40191 16.5%
DRF=4: 47677 19.6%
DRF=5: 31033 12.8%
DRF=6: 6959 2.9%
DRF=7: 33159 13.6%
DRF=8: 4288 1.8%
DRF=9: 4418 1.8%
DRF>9: 32751 13.5%
KeyF/DeltaF: 0.74%
KeyDRF<4: 1659
KeyDRF=4: 4
KeyDRF>4: 143
AverageKeyDRF: 2.01
MAXDRF: 31
AverageDRF: 5.13
Deviation: 3.61