Problem with 2.08 Beta

[G4CubeUser]

Think I may have found a problem with the latest Beta version of Auto GK. Seems as though no matter how high I set the target quality % I get the same file size and quality.


Here's an example of this , last night I encoded the Animatrix at 80% and it gave me a file around 800 megs with a bitrate somewhere around 750 which pretty much looks like crap.I decided to up the percent to 90 and the file it game me is exactly the same size and same poor quality. I decided to just tell it to give me a 1.2 gig file this time around.


Thanks for any help

[jggimi]

Hello, and welcome to the forum.

Please ... :logfile:

[G4CubeUser]

I just waited 19 hours for it to encode , and it did the exact same thing this time. I selected 1200MB as my target size , and it gave me a 892MB file with a bitrate of 750.The target bitrate was supposed to be 1200...


[5/8/2005 11:47:02 AM] AutoGK 2.08b
[5/8/2005 11:47:02 AM] OS: WinXP (5.1.2600).2
[5/8/2005 11:47:02 AM] Job started.
[5/8/2005 11:47:02 AM] Input dir: D:\Animatrix
[5/8/2005 11:47:02 AM] Output file: D:\Animatrix.avi
[5/8/2005 11:47:02 AM] Output codec: DivX
[5/8/2005 11:47:02 AM] Audio1: English AC3 6ch
[5/8/2005 11:47:02 AM] Subtitles: none
[5/8/2005 11:47:02 AM] Format: .AVI
[5/8/2005 11:47:02 AM] Target size: 1200Mb
[5/8/2005 11:47:02 AM] Started encoding.
[5/8/2005 11:47:02 AM] Demuxing and indexing.
[5/8/2005 11:55:53 AM] Processing file: D:\Animatrix\VTS_01_PGC_01_1.VOB
[5/8/2005 11:55:53 AM] Processing file: D:\Animatrix\VTS_01_PGC_01_2.VOB
[5/8/2005 11:55:53 AM] Processing file: D:\Animatrix\VTS_01_PGC_01_3.VOB
[5/8/2005 11:55:53 AM] Processing file: D:\Animatrix\VTS_01_PGC_01_4.VOB
[5/8/2005 11:55:53 AM] Processing file: D:\Animatrix\VTS_01_PGC_01_5.VOB
[5/8/2005 11:55:53 AM] Source aspect ratio: 16:9
[5/8/2005 11:55:53 AM] Source resolution: 720x480
[5/8/2005 11:55:53 AM] Found NTSC source.
[5/8/2005 11:55:53 AM] Source seems to be pure FILM.
[5/8/2005 11:55:53 AM] Output will contain 145401 frames
[5/8/2005 11:55:53 AM] Audio1 size: 339,575,040 bytes (323.84 Mb)
[5/8/2005 11:55:53 AM] Overhead: 4,576,000 bytes (4.36 Mb)
[5/8/2005 11:55:53 AM] Video size: 914,140,160 bytes (871.79 Mb)
[5/8/2005 11:55:53 AM] Target bitrate is: 1206kbps
[5/8/2005 11:55:53 AM] Running compressibility test.
[5/8/2005 11:55:53 AM] Writing the following script to D:\agk_tmp\Animatrix_comptest.avs
===========================================================
LoadPlugin("C:\PROGRA~1\AutoGK\DGMPGDec\DGDecode.dll")
LoadPlugin("C:\PROGRA~1\AutoGK\filters\autocrop.dll")

movie = mpeg2source("D:\agk_tmp\Animatrix.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)
out_width = 704
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)
SelectRangeEvery(280,14)
===========================================================
[5/8/2005 12:27:50 PM] Duration was: 31 minutes 56 seconds
[5/8/2005 12:27:50 PM] Speed was: 3.79 fps.
[5/8/2005 12:27:51 PM] Compressibility percentage is: 198.37
[5/8/2005 12:27:51 PM] Switching b-frames off
[5/8/2005 12:27:51 PM] Chosen resolution is: 720x320 ( AR: 2.25 )
[5/8/2005 12:27:51 PM] Predicted comptest value is: 156.25
[5/8/2005 12:27:51 PM] Running first pass.
[5/8/2005 12:27:51 PM] Writing the following script to D:\agk_tmp\Animatrix_movie.avs
===========================================================
LoadPlugin("C:\PROGRA~1\AutoGK\DGMPGDec\DGDecode.dll")
LoadPlugin("C:\PROGRA~1\AutoGK\filters\autocrop.dll")

movie = mpeg2source("D:\agk_tmp\Animatrix.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)
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)
===========================================================
[5/8/2005 9:40:06 PM] Duration was: 9 hours 12 minutes 14 seconds
[5/8/2005 9:40:07 PM] Speed was: 4.39 fps.
[5/8/2005 9:40:07 PM] Running second pass.
[5/9/2005 6:58:20 AM] Duration was: 9 hours 18 minutes 11 seconds
[5/9/2005 6:58:20 AM] Speed was: 4.34 fps.
[5/9/2005 6:58:20 AM] Job finished. Total time: 19 hours 11 minutes 17 seconds

[buzzqw]

note

Compressibility percentage is: 198.37

[5/8/2005 12:27:51 PM] Switching b-frames off
[5/8/2005 12:27:51 PM] Chosen resolution is: 720x320 ( AR: 2.25 )
[5/8/2005 12:27:51 PM] Predicted comptest value is: 156.25

you have saturated the source. No more quality can be gained (for autogk)

read the faq

BHH

[G4CubeUser]

Hmm , thanks for the info. So there is no way for me to get a higher bitrate? This is the first time I have encountered this problem , I did all my other movies at 75% quality and they came out with like 1500kbs.I did Fear And Loathing at 67% and it gave me a bitrate close to 2000!



Thanks again

[buzzqw]

don't look at bitrate. Look at quality ! :)

I did all my other movies at 75% quality and they came out with like 1500kbs

quality and bitrate aren't so close. Imagine a black movie. Only black for 1h 30min. What bitrate for best quality ? 500kbs ? or less.

Imagine a burst&flash&fire action movie. What bitrate for quality ? 2000kbs or more

So pal, try encoding your film at COSTANT QUANT 2 (this would be the best quality). Turn off B frames (even if someone will let these on). Don't crop anything. More than this only Huffy can do

Happy encoding

BHH