Some test results - Effects of matrices on filesize

DDogg · 7th May 2004, 17:51

The results of some tests on how different matrices effect filesize. Method used is Q28 OPV encode Min 300/Max 9000
creating a 1% sample using 'SelectRangeEvery(1200,12)' in a standard script using Mpeg2dec3DG.dll. Encoder used was
CCE 2.67.00.27 set for 16:9 with progressive settings. "D-ABR" is predicted bitrate for full encode derived from
the filesize of the 1% sample. I believe these results to be accurate within a range of +/- 2.5%.

Code:

                                                 Sample        D-ABR 
Source 23.976 Frames = 138,965                  FileSize       (Kbps)  Deviation From CCE
                                                 (bytes)               Standard Matrix
       
ISpy_Sample_6of9-24_Matrix.mpv			38,429,376	5304	+ 47.05%
ISpy_Sample_Mpeg_Std_Matrix.mpv			30,605,780	4224	+ 17.11%
ISpy_Sample_CCE_Std_Matrix.mpv			26,133,200	3607	   0.00%
ISpy_Sample_Notch_Matrix.mpv			24,118,552	3329	-  7.71%
ISpy_Sample_PackedDvd_Matrix.mpv		23,446,300	3236	- 10.28%
ISpy_Sample_Bach1_Matrix.mpv			23,371,776	3226	- 10.57%
ISpy_Sample_Jawor_1CD_LowBR.mpv	                22,394,472	3091	- 14.31%
		                                                             	     Same Matrix - Size reduction of Filtered vs. Non-Filtered
ISpy_Sample_6of9-24_Matrix_filter.mpv		29,430,004	4062	+ 12.62%   - 23.42%
ISpy_Sample_Mpeg_Std_Matrix_filter.mpv		23,229,660	3206	- 11.11%   - 24.10%
ISpy_Sample_CCE_Std_Matrix_filter.mpv		20,351,492	2809	- 22.12%   - 22.12%
ISpy_Sample_Notch_Matrix_filter.mpv		19,381,892	2675	- 25.83%   - 19.64%
ISpy_Sample_PackedDvd_Matrix_Filter.mpv		18,695,840	2581	- 28.46%   - 20.26%
ISpy_Sample_Bach1_Matrix_filter.mpv		18,657,748	2575	- 28.61%   - 20.17%
ISpy_Sample_Jawor_1CD_LowBR_Filter.mpv		17,957,524	2479	- 31.28%   - 19.81%

Note1: The 6of9 matrix is intended for use with XviD, so results when used with CCE MPEG2 may not reflect
its proper usage. I provided it as a few people had expressed a wish to try it with MPEG2.
Note2: "Filter" refers to a simple 'Undot().Deen()' combination.
Note3: I found the Jawor_1CD matrix in the XviD forum. Thread.

7th May 2004, 17:51	#1 \| Link
DDogg Retired, but still around Join Date: Oct 2001 Location: Lone Star Posts: 3,058	Some test results - Effects of matrices on filesize The results of some tests on how different matrices effect filesize. Method used is Q28 OPV encode Min 300/Max 9000 creating a 1% sample using 'SelectRangeEvery(1200,12)' in a standard script using Mpeg2dec3DG.dll. Encoder used was CCE 2.67.00.27 set for 16:9 with progressive settings. "D-ABR" is predicted bitrate for full encode derived from the filesize of the 1% sample. I believe these results to be accurate within a range of +/- 2.5%. Code: Sample D-ABR Source 23.976 Frames = 138,965 FileSize (Kbps) Deviation From CCE (bytes) Standard Matrix ISpy_Sample_6of9-24_Matrix.mpv 38,429,376 5304 + 47.05% ISpy_Sample_Mpeg_Std_Matrix.mpv 30,605,780 4224 + 17.11% ISpy_Sample_CCE_Std_Matrix.mpv 26,133,200 3607 0.00% ISpy_Sample_Notch_Matrix.mpv 24,118,552 3329 - 7.71% ISpy_Sample_PackedDvd_Matrix.mpv 23,446,300 3236 - 10.28% ISpy_Sample_Bach1_Matrix.mpv 23,371,776 3226 - 10.57% ISpy_Sample_Jawor_1CD_LowBR.mpv 22,394,472 3091 - 14.31% Same Matrix - Size reduction of Filtered vs. Non-Filtered ISpy_Sample_6of9-24_Matrix_filter.mpv 29,430,004 4062 + 12.62% - 23.42% ISpy_Sample_Mpeg_Std_Matrix_filter.mpv 23,229,660 3206 - 11.11% - 24.10% ISpy_Sample_CCE_Std_Matrix_filter.mpv 20,351,492 2809 - 22.12% - 22.12% ISpy_Sample_Notch_Matrix_filter.mpv 19,381,892 2675 - 25.83% - 19.64% ISpy_Sample_PackedDvd_Matrix_Filter.mpv 18,695,840 2581 - 28.46% - 20.26% ISpy_Sample_Bach1_Matrix_filter.mpv 18,657,748 2575 - 28.61% - 20.17% ISpy_Sample_Jawor_1CD_LowBR_Filter.mpv 17,957,524 2479 - 31.28% - 19.81% Note1: The 6of9 matrix is intended for use with XviD, so results when used with CCE MPEG2 may not reflect its proper usage. I provided it as a few people had expressed a wish to try it with MPEG2. Note2: "Filter" refers to a simple 'Undot().Deen()' combination. Note3: I found the Jawor_1CD matrix in the XviD forum. Thread. __________________ How to Optimize Bitrate for CCE multipass Last edited by DDogg; 8th May 2004 at 06:04.