2.06 beta and Fist Pass

[phenixdragon]

Maybe I didn;t notice this before with I think it was 1.95. But I installed 2.06 beta and 2 movies I encoded with Divx only did a first pass and never a second pass. Is this normal even with 1.95 or did I miss something here?

[manono]

Hi-

Is that 1-pass AVI playable? If so, it's not the first pass of a 2-pass encode. I suspect maybe you used quality based encoding, which is by its nature 1-pass encoding. If you have the log file for either one, that might help to get to the bottom of it.

[phenixdragon]

It is playable and I am using quality set to 100% since that is the only way to use it at unlimited space.

[unskinnyboy]

If you go for a quality based encode, then 1-pass is all is needed, and all that would be done.

Btw, doing a 100% quality encode is overkill IMO, since you are not exploiting the compression features of DivX. An optimal setting would be 70% or so (you can keep increasing the value till the avi looks more or less like the source itself). But if you really don't care about the filesize at all, then it doesn't really matter.

[phenixdragon]

Very intersting what I am seeing today. I did reinstall back to 1.95 and it does not do a 2nd pass no matter what settings I use. I have tried them all. But also the encoding is half the time on the pass. Any reason for this? Nothing has changed besides unintalling the beta back to 1.95.

[unskinnyboy]

:logfile:

[phenixdragon]

Here is a copy of the last one I just did.

[4/23/2005 4:19:11 PM] AutoGK 1.95
[4/23/2005 4:19:11 PM] OS: WinXP (5.1.2600).2
[4/23/2005 4:19:11 PM] Job started.
[4/23/2005 4:19:11 PM] Input dir: D:\ANALYZE_THIS\VIDEO_TS
[4/23/2005 4:19:11 PM] Output file: D:\Analyze This 2.avi
[4/23/2005 4:19:11 PM] Audio: English
[4/23/2005 4:19:11 PM] Subtitles: none
[4/23/2005 4:19:11 PM] Codec: DivX
[4/23/2005 4:19:11 PM] Target quality: 80%
[4/23/2005 4:19:11 PM] Custom audio settings: AC3
[4/23/2005 4:19:11 PM] Started encoding.
[4/23/2005 4:19:11 PM] Demuxing and indexing.
[4/23/2005 4:25:35 PM] Processing file: D:\ANALYZE_THIS\VIDEO_TS\VTS_01_1.VOB
[4/23/2005 4:25:35 PM] Processing file: D:\ANALYZE_THIS\VIDEO_TS\VTS_01_2.VOB
[4/23/2005 4:25:35 PM] Processing file: D:\ANALYZE_THIS\VIDEO_TS\VTS_01_3.VOB
[4/23/2005 4:25:35 PM] Processing file: D:\ANALYZE_THIS\VIDEO_TS\VTS_01_4.VOB
[4/23/2005 4:25:35 PM] Source aspect ratio: 16:9
[4/23/2005 4:25:35 PM] Source resolution: 720x480
[4/23/2005 4:25:35 PM] Found NTSC source.
[4/23/2005 4:25:35 PM] Source seems to be pure FILM.
[4/23/2005 4:25:35 PM] Output will contain 148737 frames
[4/23/2005 4:25:35 PM] Using bitrate spikes control.
[4/23/2005 4:25:35 PM] Running single pass encoding.
[4/23/2005 4:25:35 PM] Writing the following script to D:\agk_tmp\Analyze This 2_movie.avs
===========================================================
LoadPlugin("D:\PROGRA~1\AutoGK\DGMPGDec\DGDecode.dll")
LoadPlugin("D:\PROGRA~1\AutoGK\filters\autocrop.dll")
LoadPlugin("D:\PROGRA~1\AutoGK\filters\RemoveGrainSSE2.dll")

movie = mpeg2source("D:\agk_tmp\Analyze This 2.d2v")
cropclip = autocrop(movie,mode=0,wmultof=4,hmultof=4,samples=10,aspect=0,threshold=34,samplestartframe=0,leftadd=0,rightadd=0,topadd=0,bottomadd=0)
fixed_aspect = 1.18518518518519
c_width = width(cropclip)
c_height = round(height(cropclip) / fixed_aspect)
input_par = float(c_width)/float(c_height)
input_par = input_par > 1.4 ? input_par : (4.0/3.0)
out_width = 720
out_height = round(float(out_width) / input_par)
hmod = out_height - (floor(out_height / 16 ) * 16)
out_height = (hmod > 4) ? (out_height + (16 - hmod)) : (out_height - hmod)
new_aspect = (float(out_width) / float(out_height)) / fixed_aspect
autocrop(movie,mode=0,wmultof=4,hmultof=4,samples=10,aspect=new_aspect,threshold=34,samplestartframe=0,leftadd=0,rightadd=0,topadd=0,bottomadd=0)
LanczosResize(out_width,out_height)
RemoveGrain(mode=2)
===========================================================
[4/23/2005 6:47:44 PM] Duration was: 2 hours 22 minutes 8 seconds
[4/23/2005 6:47:45 PM] Speed was: 17.44 fps.
[4/23/2005 6:47:45 PM] Job finished. Total time: 2 hours 28 minutes 33 seconds

[manono]

You're doing a 1-pass quality based encode. If you want to go back to 2-pass for a specific size, then tick something else besides "Target quality (in percentage)."

[phenixdragon]

I have also done that. I have selected Max Quality under the Predefined and it also only does 1 pass. It only did this since I upgraded to the 2.06 and I am assuming it left something behind when I uninstalled it and installed 1.95 again. but it will no do 2 passes.

[phenixdragon]

I will say I notice when I do Max Quality the Target quality will go t0 100%. I didnt realy notice what it would have said before the beta.

[Sharktooth]

Target Quality is ALWAYS a 1 pass encode.
If you want 2 passes select a Custom or Predefined size. Period.

[phenixdragon]

Originally posted by Sharktooth
Target Quality is ALWAYS a 1 pass encode.
If you want 2 passes select a Custom or Predefined size. Period.

Ok, I have said it 4 or 5 times now. I have tried DIFFRENT things such as Max Quality which has nothign to do with Target Quality.

What I am running into Max Quality it does not do a 2 pass like it did before. From what I think is going on is that uninstalling the beta changed something and didnt remove.

[Sharktooth]

Max Quality is still TARGET QUALITY!!! (=1 pass!!!)
2 passes is ONLY available with Custom or Predefined size.

[phenixdragon]

Originally posted by Sharktooth
Max Quality is still TARGET QUALITY!!! (=1 pass!!!)
2 passes is ONLY available with Custom or Predefined size.

OK dude, I have set it to 2 gigs also and it still does a single pass and no 2nd pass.

[Sharktooth]

Can you please post the logfile of this last encode?
Maybe AutoGK is choosing a 1pass encoding coz 2gigs are enaugh to saturate the codec...