Poor Quality Out of TV Show Rips

[ajedale]

I have ripped my movies into .avi files so they can be played in my Media Center. I usedg Auto GK to do this (from a DVD movie dycrypted using DVD Dycrypter).

With some exceptions I was very happy with the results so I moved on to my TV Series DVDs. This is when a perplexing issues occured,

I have followed the same process Iused for the feature films, but for some reason my 30min DVD rips are horrible quailty. I have tried three diffrent series of shows and they all come out blurry.

My desied size is around 174mb, which I think is fair since similar sizes can be found on torrent sites. However to test things I have tried diffrent, larger files sizes and they too are blurry.

Auo GK offers a percentage of quality which on my porgram is defaulted to 75%. I tried ripping at 100% and then again at 75% and my files sizes were around 1.5 gb and 1.2 gb respectivly. The quality was better but the file size is just absurd.

Am I doing something wrong?
Are TV series DVDs diffrent then feature film DVDs?
Can someone suggest a means to get a decent quailty picture with a manageable file size?


Below is a VLC snap of one of my samples.


vlcsnap-427748.png

[manono]

The pic is indicative of too low of a bitrate. However, if you want some better informed advice, please post the log from one of these encodes that turned out badly and maybe a 10 second sample of the source, a sample showing movement.

However, if you're trying to compress a DVD source to 175 MB that gives a file size almost 7 times greater at 75% quality, then I don't really know how you'd expect anything decent to come out of it. Also, I suspect you're forcing a 640 width where AutoGK would have chosen one much less if you had left the width on auto. But we won't know the definitive answer to that one without the log.

[Bulldog57]

ajedale
I rip tv ep DVDs to file size of 349 MB for 45min ep with AutoGK

try to rip to about 300meg per ep and see how that gos.

[hech54]

To "Rip".....or the act of "Ripping" a DVD....does not involve any type of compression.

[ajedale]

Here is the .AGK file. I assume this is the log file.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`

[17/06/2009 10:08:30 PM] AutoGK 2.55
[17/06/2009 10:08:30 PM] OS: Windows Vista (6.0.6000).2
[17/06/2009 10:08:30 PM] Job started.
[17/06/2009 10:08:30 PM] Input file: C:\big bang\VTS_01_0.IFO
[17/06/2009 10:08:30 PM] Output file: C:\big bang\ep1.avi
[17/06/2009 10:08:30 PM] Output codec: XviD
[17/06/2009 10:08:30 PM] Audio 1: English AC3 2ch
[17/06/2009 10:08:30 PM] Subtitles: none
[17/06/2009 10:08:31 PM] Format: AVI
[17/06/2009 10:08:31 PM] Target size: 175Mb
[17/06/2009 10:08:31 PM] Custom resolution settings: fixed width of 640 pixels
[17/06/2009 10:08:31 PM] Audio 1 settings: CBR MP3 with bitrate: 128Kbps
[17/06/2009 10:08:31 PM] Started encoding.
[17/06/2009 10:08:31 PM] Demuxing and indexing.
[17/06/2009 10:11:35 PM] Processing file: C:\big bang\VTS_01_1.VOB
[17/06/2009 10:11:35 PM] Processing file: C:\big bang\VTS_01_2.VOB
[17/06/2009 10:11:35 PM] Processing file: C:\big bang\VTS_01_3.VOB
[17/06/2009 10:11:35 PM] Processing file: C:\big bang\VTS_01_4.VOB
[17/06/2009 10:11:35 PM] Source resolution: 720x480
[17/06/2009 10:11:35 PM] Found NTSC source.
[17/06/2009 10:11:35 PM] Source aspect ratio: 16:9
[17/06/2009 10:11:35 PM] Source seems to be pure FILM.
[17/06/2009 10:11:36 PM] Output will contain 171518 frames
[17/06/2009 10:11:36 PM] Decoding audio.
[17/06/2009 10:13:27 PM] Normalizing audio.
[17/06/2009 10:15:19 PM] Encoding audio.
[17/06/2009 10:29:57 PM] Using VAQ in XviD
[17/06/2009 10:29:57 PM] Audio1 size: 114,459,648 bytes (109.16 Mb)
[17/06/2009 10:30:00 PM] Overhead: 2,036,736 bytes (1.94 Mb)
[17/06/2009 10:30:00 PM] Video size: 67,004,416 bytes (63.90 Mb)
[17/06/2009 10:30:00 PM] Running compressibility test.
[17/06/2009 10:30:00 PM] Writing the following script to C:\big bang\agk_tmp\ep1_comptest.avs
================================================== =========
LoadPlugin("C:\PROGRA~1\AutoGK\DGMPGDec\DGDecode.dll")
LoadPlugin("C:\PROGRA~1\AutoGK\filters\autocrop.dl l")
LoadPlugin("C:\PROGRA~1\AutoGK\filters\RemoveGrain SSE3.dll")

movie = mpeg2source("C:\big bang\agk_tmp\ep1.d2v")
cropclip = autocrop(movie,mode=0,wmultof=4,hmultof=4,samples= 10,aspect=0,threshold=34,samplestartframe=0,leftad d=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 < 1.25) ? 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,leftadd=0,rightadd=0,topadd=0,bottomadd=0)
LanczosResize(out_width,out_height)
RemoveGrain(mode=2)
SelectRangeEvery(300,15)
================================================== =========
[17/06/2009 10:34:00 PM] Duration was: 3 minutes 59 seconds
[17/06/2009 10:34:00 PM] Speed was: 35.78 fps.
[17/06/2009 10:34:00 PM] Compressibility percentage is: 5.39
[17/06/2009 10:34:00 PM] Using softer resizer.
[17/06/2009 10:34:00 PM] Chosen resolution is: 640x368 ( AR: 1.74 )
[17/06/2009 10:34:00 PM] Predicted comptest value is: 5.60%
[17/06/2009 10:34:00 PM] Running first pass.
[17/06/2009 10:34:00 PM] Writing the following script to C:\big bang\agk_tmp\ep1_movie.avs
================================================== =========
LoadPlugin("C:\PROGRA~1\AutoGK\DGMPGDec\DGDecode.d ll")
LoadPlugin("C:\PROGRA~1\AutoGK\filters\autocrop.dl l")
LoadPlugin("C:\PROGRA~1\AutoGK\filters\RemoveGrain SSE3.dll")

movie = mpeg2source("C:\big bang\agk_tmp\ep1.d2v")
cropclip = autocrop(movie,mode=0,wmultof=4,hmultof=4,samples= 10,aspect=0,threshold=34,samplestartframe=0,leftad d=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 < 1.25) ? 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,leftadd=0,rightadd=0,topadd=0,bottomadd=0)
BicubicResize(out_width,out_height,0,0.5)
RemoveGrain(mode=2)
================================================== =========
[17/06/2009 11:19:41 PM] Duration was: 45 minutes 40 seconds
[17/06/2009 11:19:41 PM] Speed was: 62.59 fps.
[17/06/2009 11:19:41 PM] Expected quality of first pass size: 5.98%
[17/06/2009 11:19:41 PM] Running second pass.
[18/06/2009 12:12:33 AM] Duration was: 52 minutes 50 seconds
[18/06/2009 12:12:33 AM] Speed was: 54.10 fps.
[18/06/2009 12:12:33 AM] Job finished. Total time: 2 hours 4 minutes 2 seconds

[poisondeathray]

[17/06/2009 10:29:57 PM] Audio1 size: 114,459,648 bytes (109.16 Mb)
[17/06/2009 10:30:00 PM] Overhead: 2,036,736 bytes (1.94 Mb)
[17/06/2009 10:30:00 PM] Video size: 67,004,416 bytes (63.90 Mb)

Your video bitrate is lower than your audio bitrate of 128kb/s

You probably allocated 175MB for the whole DVD , not a single episode

[manono]

Yep, you encoded all the episodes at once. For episodic DVDs, decrypt the episodes separately, each to its own folder (DVD Decrypter in IFO Mode), and then encode them separately. So, you're not encoding a single 30 minute episode, but 2 hours worth of episodes (4 episodes per DVD?).

[17/06/2009 10:34:00 PM] Predicted comptest value is: 5.60%

That tells the whole story. It doesn't get much worse than that. And, as I speculated earlier, you're forcing a 640 width. That removes a lot of AutoGK's ability to encode with any sort of quality, even if you had managed to decrypt these episodes properly.

[MysticE]

My desied size is around 174mb, which I think is fair since similar sizes can be found on torrent sites. However to test things I have tried diffrent, larger files sizes and they too are blurry.

here's the specs on one of those:

Codec ID/Hint : XviD
Duration : 20mn 40s
Bit rate : 1034 Kbps
Width : 624 pixels
Height : 352 pixels
Display aspect ratio : 16/9
Frame rate : 23.976 fps

[ajedale]

Oh what a wonderful feeling.

Ripping each episode and storing them in seperate files did the trick.

Thank you very much, now I can finally move on with my media center project.