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View Full Version : Differing comptests between Xvid and divX


mr soft
11th July 2007, 20:36
Hi
I´m running some tests ,encoding the same file with xvid and divx, and wondering why there a such differences in the comptest,and Compressibility percentages.
Regards





[11/07/2007 20:59:19] AutoGK 2.40
[11/07/2007 20:59:19] OS: WinXP (5.1.2600).2
[11/07/2007 20:59:19] Job started.
[11/07/2007 20:59:19] Input file: D:\d drive\vob for testing\VIDEO_TS\VTS_01_0.IFO
[11/07/2007 20:59:19] Output file: D:\d drive\divx movies\vob for testing xvid.avi
[11/07/2007 20:59:19] Output codec: XviD
[11/07/2007 20:59:19] Audio 1: English AC3 6ch
[11/07/2007 20:59:19] Subtitles: none
[11/07/2007 20:59:19] Format: AVI
[11/07/2007 20:59:19] Target size: 75Mb
[11/07/2007 20:59:19] Audio 1 settings: Original
[11/07/2007 20:59:19] Standalone support enabled: ESS
[11/07/2007 20:59:19] Started encoding.
[11/07/2007 20:59:19] Demuxing and indexing.
[11/07/2007 20:59:23] Processing file: D:\d drive\vob for testing\VIDEO_TS\VTS_01_1.VOB
[11/07/2007 20:59:23] Source resolution: 720x576
[11/07/2007 20:59:23] Found PAL source.
[11/07/2007 20:59:23] Source aspect ratio: 16:9
[11/07/2007 20:59:23] Analyzing source.
[11/07/2007 21:00:01] Source is considered to be progressive.
[11/07/2007 21:00:01] Output will contain 6955 frames
[11/07/2007 21:00:01] Audio1 size: 15,568,221 bytes (14.85 Mb)
[11/07/2007 21:00:01] Overhead: 82,560 bytes (0.08 Mb)
[11/07/2007 21:00:01] Video size: 62,992,419 bytes (60.07 Mb)
[11/07/2007 21:00:01] Running compressibility test.
[11/07/2007 21:01:05] Duration was: 1 minute, 3 seconds
[11/07/2007 21:01:05] Speed was: 31,76 fps.
[11/07/2007 21:01:05] Compressibility percentage is: 109,33
[11/07/2007 21:01:05] Using sharper matrix
[11/07/2007 21:01:05] Chosen resolution is: 720x304 ( AR: 2,37 )
[11/07/2007 21:01:05] Predicted comptest value is: 78,52%
[11/07/2007 21:01:05] Running first pass.
[11/07/2007 21:03:35] Duration was: 2 minutes 29 seconds
[11/07/2007 21:03:35] Speed was: 46,38 fps.
[11/07/2007 21:03:35] Expected quality of first pass size: 88,32%
[11/07/2007 21:03:35] Running second pass.
[11/07/2007 21:07:19] Duration was: 3 minutes 44 seconds
[11/07/2007 21:07:19] Speed was: 31,05 fps.
[11/07/2007 21:07:19] Job finished. Total time: 7 minutes 59 seconds
====================================================
[11/07/2007 21:13:00] AutoGK 2.40
[11/07/2007 21:13:00] OS: WinXP (5.1.2600).2
[11/07/2007 21:13:00] Job started.
[11/07/2007 21:13:00] Input file: D:\d drive\vob for testing\VIDEO_TS\VTS_01_0.IFO
[11/07/2007 21:13:00] Output file: D:\d drive\divx movies\vob for testing divx.avi
[11/07/2007 21:13:00] Output codec: DivX
[11/07/2007 21:13:00] Audio 1: English AC3 6ch
[11/07/2007 21:13:00] Subtitles: none
[11/07/2007 21:13:00] Format: AVI
[11/07/2007 21:13:00] Target size: 75Mb
[11/07/2007 21:13:00] Audio 1 settings: Original
[11/07/2007 21:13:00] Standalone support enabled: ESS
[11/07/2007 21:13:00] Started encoding.
[11/07/2007 21:13:00] Demuxing and indexing.
[11/07/2007 21:13:02] Processing file: D:\d drive\vob for testing\VIDEO_TS\VTS_01_1.VOB
[11/07/2007 21:13:02] Source resolution: 720x576
[11/07/2007 21:13:02] Found PAL source.
[11/07/2007 21:13:02] Source aspect ratio: 16:9
[11/07/2007 21:13:02] Analyzing source.
[11/07/2007 21:13:40] Source is considered to be progressive.
[11/07/2007 21:13:40] Output will contain 6955 frames
[11/07/2007 21:13:40] Audio1 size: 15,568,221 bytes (14.85 Mb)
[11/07/2007 21:13:40] Overhead: 255,872 bytes (0.24 Mb)
[11/07/2007 21:13:40] Video size: 62,819,107 bytes (59.91 Mb)
[11/07/2007 21:13:40] Target bitrate is: 1806kbps
[11/07/2007 21:13:40] Running compressibility test.
[11/07/2007 21:14:48] Duration was: 1 minute, 8 seconds
[11/07/2007 21:14:48] Speed was: 29,63 fps.
[11/07/2007 21:14:48] Compressibility percentage is: 95,09
[11/07/2007 21:14:48] Chosen resolution is: 720x304 ( AR: 2,37 )
[11/07/2007 21:14:48] Predicted comptest value is: 75,63%
[11/07/2007 21:14:48] Running first pass.
[11/07/2007 21:18:43] Duration was: 3 minutes 55 seconds
[11/07/2007 21:18:43] Speed was: 29,58 fps.
[11/07/2007 21:18:43] Running second pass.
[11/07/2007 21:22:33] Duration was: 3 minutes 50 seconds
[11/07/2007 21:22:33] Speed was: 30,21 fps.
[11/07/2007 21:22:33] Job finished. Total time: 9 minutes 33 seconds
====================================================