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View Full Version : CCE doubled the encoded video size?!


edguit@r
26th May 2003, 11:55
Operational System: Win 2k SP3
Machine: Athlon XP 1600+ 512Mb DDR
CCE version: 2.67.00.10 with EclCCE
Matrix: Angel BestVeryLow
Encoding Mode: MPEG-2 (ES, Multipass VBR)
Avg/Min/Max: 1065/300/2530
Passes: 4
Intra Block Decision Plan: 10
Block Scaning Order: Zig-Zag
Progressive Flame Flag: Yes
Low Pass Filter: 10
Quantizer: 22

Add Sequence End Code: Yes
Close All Gops: Yes
GOP structure: M = 3; N/M = 5; SEQ Header Every 1 GOP
No Audio file on enconding

I calculated the avg bitrate to fit in one 80 min CD.

The avisynth version is 2.5.1.

Avisynth script:


LoadPlugin("F:\Program Files\AviSynth 2.5\plugins\FluxSmooth-2.5.dll")
LoadPlugin("F:\Program Files\AviSynth 2.5\plugins\eDeen.dll")
LoadPlugin("F:\Program Files\AviSynth 2.5\plugins\Convolution3DYV12.dll")

AviSource("movie.avi")

BicubicResize(352,480)
FluxSmooth(7, 7)
MergeChroma(blur(1.58))
MergeLuma(blur(0.2))
edeen(7,14,21,2,3,true)
Convolution3D(0, 32, 128, 16, 64, 10, 0)



The final size of encoded video was 1.4 Gb!!

What was wrong with my CCE settings or my avisynth script.

Any help would br appreciated.

Thx.

RB
26th May 2003, 15:00
Well, what was the length of the video and the expected final size?

A couple of notes. Don't use "Close all GOPs" especially at such low bitrates. I'd also turn off the Low Pass filter because you seem to do the filtering in the script already. And no need for the "LoadPlugin" lines as the plugins already are in the AVISynth plugins directory (they will get loaded automatically).

Also CCE 2.67.00.10 is still beta, maybe a bug. Try 2.66.01.07 instead.

edguit@r
27th May 2003, 01:40
The video is 1h27min long. I calculated the bitrate to fit in one 80 min CD-R.

Thanks for your help with the avisynth script. I'll try to encode with another version of CCE and see what happens.


Take care.

bel
27th May 2003, 19:25
Do you encode any audio? What's the audio bitrate?
and what is the frame rate of your source "movie.avi"?
Check your ecl again. Is it actually 87 minutes long?

edguit@r
30th May 2003, 13:49
I did not encoded any audio (see first post).

I did not any changes on the frame rate. The Mpeg video has the same fps of the source avi: 23,976 fps.

And I am sure the source avi is 87 min long.

Anyway, I reencoded de video with 'Low Pass Filter' off using the UltraLow Bitrate Matrix from CCE and leaving all gops open (What is the diference from closing the gops?). This time I got a video file with the desired size. I modified the avisynth script removing the eDeen filter too (encoding was too slow).

Thanks guys. This forum rules.

Kika
30th May 2003, 22:32
Intra Block Decision Plan: 10

Not good for low bitrates. Use 9 Bits.

Low Pass Filter does exact the same like the Angel Matrix - it cuts of high Frequencies. There's no need to use them both!

What is the diference from closing the gops

In open GOPs, the last B-Frames in the GOP may be linked to the next I-Frame of the Following GOP. Good, for Encoding, but bad for cutting and Authoring.

And don't do so much filtering. It lowers the speed AND the Quality of you Video. Less is more...