"Warning: final AVI will likely be undersized."???

[AGK_J]

i was ripping a tv show at 700mb...and then got this message in the log 'Warning: final AVI will likely be undersized.' the file turned up as 615mb rather then 700mb...ne idea what i did wrong or how i can fix this? here is my autogk log from that session...

[2/25/2005 12:49:19 PM] AutoGK 1.60
[2/25/2005 12:49:19 PM] OS: WinXP (5.1.2600).2
[2/25/2005 12:49:19 PM] Job started.
[2/25/2005 12:49:19 PM] Input dir: C:\24_SEASON3_DISC2\VIDEO_TS
[2/25/2005 12:49:19 PM] Output file: C:\24_SEASON3_DISC2\VIDEO_TS\56.avi
[2/25/2005 12:49:19 PM] Audio: English
[2/25/2005 12:49:19 PM] Subtitles: English / Normal Closed Captions : Letterbox
[2/25/2005 12:49:19 PM] Display only forced subtitles.
[2/25/2005 12:49:19 PM] Codec: XviD
[2/25/2005 12:49:19 PM] Target size: 700Mb
[2/25/2005 12:49:19 PM] Custom resolution settings: fixed width of 640 pixels
[2/25/2005 12:49:19 PM] Custom audio settings: AC3
[2/25/2005 12:49:19 PM] Started encoding.
[2/25/2005 12:49:19 PM] Demuxing and indexing.
[2/25/2005 12:50:38 PM] Processing file: C:\24_SEASON3_DISC2\VIDEO_TS\VTS_05_PGC_01_1.VOB
[2/25/2005 12:50:38 PM] Processing file: C:\24_SEASON3_DISC2\VIDEO_TS\VTS_05_PGC_01_2.VOB
[2/25/2005 12:50:38 PM] Source aspect ratio: 16:9
[2/25/2005 12:50:38 PM] Source resolution: 720x480
[2/25/2005 12:50:38 PM] Found NTSC source.
[2/25/2005 12:50:38 PM] Source seems to be pure FILM.
[2/25/2005 12:50:38 PM] Found 63250 frames
[2/25/2005 12:50:38 PM] Indexing subtitles.
[2/25/2005 12:52:17 PM] Audio size: 147,728,896 bytes (140.89 Mb)
[2/25/2005 12:52:17 PM] Overhead: 751,104 bytes (0.72 Mb)
[2/25/2005 12:52:17 PM] Video size: 585,523,200 bytes (558.40 Mb)
[2/25/2005 12:52:17 PM] Running compressibility test.
[2/25/2005 12:52:17 PM] Writing the following script to C:\24_SEASON3_DISC2\VIDEO_TS\agk_tmp\56_comptest.avs
===========================================================
LoadPlugin("C:\PROGRA~1\AutoGK\DGMPGDec\DGDecode.dll")
LoadPlugin("C:\PROGRA~1\AutoGK\filters\autocrop.dll")
LoadPlugin("C:\PROGRA~1\AutoGK\filters\vsfilter.dll")
LoadPlugin("C:\PROGRA~1\AutoGK\filters\undot.dll")

movie = mpeg2source("C:\24_SEASON3_DISC2\VIDEO_TS\agk_tmp\56.d2v")
cropclip = autocrop(movie,mode=0,wmultof=4,hmultof=4,samples=10,aspect=0,threshold=34,samplestartframe=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 = 640
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)
Undot()
VobSub("C:\24_SEASON3_DISC2\VIDEO_TS\agk_tmp\56.idx")
LanczosResize(out_width,out_height)
SelectRangeEvery(300,15)
===========================================================
[2/25/2005 12:54:15 PM] Duration was: 1 minute, 57 seconds
[2/25/2005 12:54:15 PM] Speed was: 26.90 fps.
[2/25/2005 12:54:15 PM] Compressibility percentage is: 196.42
[2/25/2005 12:54:15 PM] Using sharper matrix
[2/25/2005 12:54:15 PM] Switching b-frames off
[2/25/2005 12:54:15 PM] Chosen resolution is: 640x368 ( AR: 1.74 )
[2/25/2005 12:54:15 PM] Predicted comptest value is: 131.64
[2/25/2005 12:54:15 PM] Running first pass.
[2/25/2005 12:54:15 PM] Writing the following script to C:\24_SEASON3_DISC2\VIDEO_TS\agk_tmp\56_movie.avs
===========================================================
LoadPlugin("C:\PROGRA~1\AutoGK\DGMPGDec\DGDecode.dll")
LoadPlugin("C:\PROGRA~1\AutoGK\filters\autocrop.dll")
LoadPlugin("C:\PROGRA~1\AutoGK\filters\vsfilter.dll")
LoadPlugin("C:\PROGRA~1\AutoGK\filters\undot.dll")

movie = mpeg2source("C:\24_SEASON3_DISC2\VIDEO_TS\agk_tmp\56.d2v")
cropclip = autocrop(movie,mode=0,wmultof=4,hmultof=4,samples=10,aspect=0,threshold=34,samplestartframe=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 = 640
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)
Undot()
VobSub("C:\24_SEASON3_DISC2\VIDEO_TS\agk_tmp\56.idx")
LanczosResize(out_width,out_height)
===========================================================
[2/25/2005 1:15:23 PM] Duration was: 21 minutes 7 seconds
[2/25/2005 1:15:23 PM] Speed was: 49.89 fps.
[2/25/2005 1:15:23 PM] Expected quality of first pass size: 111.71
[2/25/2005 1:15:23 PM] Warning: final AVI will likely be undersized.
[2/25/2005 1:15:23 PM] Running second pass.
[2/25/2005 1:49:35 PM] Duration was: 34 minutes 11 seconds
[2/25/2005 1:49:35 PM] Speed was: 30.83 fps.
[2/25/2005 1:49:35 PM] Job finished.

[AGK_J]

i did not know whether or not this show had forced subs or not so i chose the 'Display only forced subtitles' option...could that be the problem? could using that option just cause more problems when there aren't any actual forced subs?

[manono]

Hi-

[2/25/2005 1:15:23 PM] Expected quality of first pass size: 111.71
[2/25/2005 1:15:23 PM] Warning: final AVI will likely be undersized.

When the compression test results go over 100% (or even slightly below 100%), you won't reach the file size you set. You can make it for a larger resolution, or a smaller file size, perhaps with a lower resolution.

[AGK_J]

if and/or when i get this "Warning: final AVI will likely be undersized." problem...is there anything else wrong with the file? or is the filesize the only problem? will it be a perfectly functional avi like any other avi made by autogk?

[len0x]

Nothing wrong with the file.

Btw, latest version of AutoGK will reduce quantizers to 1, so undersize should not happen anymore (buts its a waste of space, really). It will be indicated in the logs.

[Newbzilla]

Sorry to thread dig, but you probably don't want an entirely new thread about it. I have also had this problem, I've only had it twice, both with fairly low level lighting, where in a lot of the scenes most of the view is very dark (panic room, and being john malkovich are the ones I've had problems with). Do you think this explains it?

A little aside, but something I've been wondering as to the reason for, why does it take longer for autogk to encode my mpeg2 files that I have made using my capture card, than it does to encode movies in the dvd .vob format? The only reason I can think of is that most of the movies are 16:9, and my capture card captures stuff at 4:3, so at max resolution there is more video to encode and therefore takes longer.

[unskinnyboy]

Sorry to thread dig, but you probably don't want an entirely new thread about it. I have also had this problem, I've only had it twice, both with fairly low level lighting, where in a lot of the scenes most of the view is very dark (panic room, and being john malkovich are the ones I've had problems with). Do you think this explains it?
Yup. Dark movies compress a lot and doesn't need that much bitrate. As an example, a full DVD resolution XviD encode of the NTSC R1 'The Skeleton Key' @ 720x304, no b-frames, AC3 audio, no filters (just cropping/resizing) just wouldn't go beyond 1.24 GB for me even though I aimed for 1.37 GB. The movie is just so damn dark and sullen. I had to add some sharpening filters (even though it wasn't that much necessary), to make it hit the desired target size.


A little aside, but something I've been wondering as to the reason for, why does it take longer for autogk to encode my mpeg2 files that I have made using my capture card, than it does to encode movies in the dvd .vob format? The only reason I can think of is that most of the movies are 16:9, and my capture card captures stuff at 4:3, so at max resolution there is more video to encode and therefore takes longer.
Possible yes. A higher resolution takes more time to encode because there is more video to encode (as you guessed).

[Backflip]

Encoding Skeleton Key myself, and it's incredibly compressible. Other than adding sharpening filters I'm just looking to use a high detail CQM. I think I shall use Sharktooth's v3uhr_rev2 plus Quarter Pixel. Using square pixel on this occasion with a 1500 bitrate.

Has anyone else got a suggestion for CQM etc?