Bitrates: CQmatic Error - Page 2

rds_correia · #21 10-09-2005, 10:52 AM

Quote:

Originally Posted by dlettau

I think this formula was giving me trouble I made it one line and cqmatic is going thru its moves

Yes, you're right. Sometimes when we copy/paste the script into a text-file some weird spaces are added to the text and they could be the reason for the scriptclip error too.
Good job

.

Quote:

Originally Posted by dlettau

the only thing I am a little concerned about is the the cq value it is coming up with is about 57 and avg. bitrate of 548 , the movie concert length is 163min. I am curious as to how well the filters work.

Well 548 giving a CQ under 60 might not be enough for your eyes.
Anyway CQ=57 it's not enough to my eyes.
You'll make your own judgement on that

.
If you're not pleased with what you get, try to lower the resolution one step.
For instance, if you're encoding to 528x576(480) try to go for 480x576(480) instead.
That will immediatly rise your CQ on the next CQMatic run.
The other 2 possibilities are to spread your encode to 2 CDs instead of 1 CD or then you could try some more compressible script which I wouldn't recommend (my special taste...).
But good to see that you're already on track.
Cheers

dlettau · #22 10-09-2005, 01:40 PM

I am encoding at 352X240, the stramge thing is the video prtion of the file ended up at 579,167,994 bytes. I may have set something wrong?

Dialhot · #23 10-09-2005, 01:46 PM

What bitrate did you choose for the audio ?

dlettau · #24 10-09-2005, 02:01 PM

The audio bit rate is at 128 which makes the file around 123mb. The Video file ended up around 566mb but with a cq of 54.6 and an avg bitrate of 548. I can probably trim the video from 163 min down to about 143 getting rid of the interview. Should I use dvd2avi to clip the film length?

kwag · #25 10-09-2005, 02:54 PM

Quote:

Originally Posted by dlettau

Should I use dvd2avi to clip the film length?

No need for that

Just mux your streams with MPLEX using start time of 0 and end time in seconds at the point you want to cut.

-kwag

dlettau · #26 10-09-2005, 06:20 PM

I want to thank all that helped me in the past few days. I have learned a great deal and am well on my way. This isn't the easiest thing to do but you guys have helped alot. Thanks again. I will let you know how my first project turns out.

dlettau · #27 10-09-2005, 07:49 PM

OK I finished the project, sorrt of, I just wanted to see if audio was synced. It was. The file was too big though. I used the values from cqmatic it's a pitifull cd55.01 with an average bitrate of 384.75. The original is a dvd rip 4:3 and 137.5 min long. My question is, I am using the kvcd template cq 352X240 film ntsc plus, is this the best template for a 4:3 film. It seems you get higher quilty with 16:9 because you can cut off the black at top and bottom.

kwag · #28 10-09-2005, 08:08 PM

Quote:

Originally Posted by dlettau

It seems you get higher quilty with 16:9 because you can cut off the black at top and bottom.

Exactly

And with a full screen movie, you can only get around 90 minutes on a CD, with reasonable quality.
Also an average bitrate of 384.75 is just WAY to low, unless you plan on viewing on a 9" CRT

-kwag

dlettau · #29 10-10-2005, 07:15 PM

Ok I have a finished kvcd I split the concert in to 2 discs. The only question I have is when I create my mp2 file should I convert from 48khz down to 44.1 & should I leave the framerate at 23.97. The video looks a little jerky. Also I think my stand alone dvd player (Sony) doesn't care for this particular project, The audio goes out of sync, but when I play it, (VCD), on the computer it looks fine and I also checked out the mpg file before I muxed it.

kwag · #30 10-10-2005, 09:50 PM

Quote:

Originally Posted by dlettau

Ok I have a finished kvcd I split the concert in to 2 discs. The only question I have is when I create my mp2 file should I convert from 48khz down to 44.1 & should I leave the framerate at 23.97.

Downsample to 44.1Khz. Not all players are capable of 48Khz, so that could give you problems.

Quote:

The video looks a little jerky. Also I think my stand alone dvd player (Sony) doesn't care for this particular project, The audio goes out of sync, but when I play it, (VCD), on the computer it looks fine and I also checked out the mpg file before I muxed it.

Same thing. Probably the audio sync issues are because of the 48Khz audio.
Reencode your original audio with HeadAC3he, and make sure you check the "resample" option and select 44.1Khz

-kwag

dlettau · #31 10-11-2005, 04:53 AM

Kwag what about the jerky video, is 23.97 the proper setting for an ntsc film?

Dialhot · #32 10-11-2005, 05:45 AM

Quote:

Originally Posted by dlettau

Kwag what about the jerky video, is 23.97 the proper setting for an ntsc film?

On a VCD, you can keep the 23.976. DVD needs 29.970 only.

dlettau · #33 10-15-2005, 04:48 AM

Well I have encoded a couple of movie so far all looks great, I was wondering if someone could take a look at my avs script and see if it looks good or may need better or more or less filters. I am not realy sure what the mergechroma & mergeluma do. Again thanks for all the help. I just finished encoding I Robot (115min 16X9 ntsc) looked pretty good.

Code:

## DLL Section ##
#
Loadplugin("C:\Filters25\TemporalCleaner.dll")
LoadPlugin("C:\Filters25\MPEG2Dec3.dll")
LoadPlugin("C:\Filters25\GripFit_YV12.dll")
LoadPlugin("C:\Filters25\STMedianFilter.dll")
LoadPlugin("C:\Filters25\asharp.dll")
LoadPlugin("C:\Filters25\unfilter.dll")
LoadPlugin("C:\Filters25\undot.dll")
#
####
## Main section and static filters ###
#
Mpeg2Source("G:\I_Robot.d2v")
#
undot()
asharp(1, 4)
BicubicResize(352,176,0,0.6,0,58,720,360)
AddBorders(0,32,0,32)
STMedianFilter(3, 3, 1, 1 )
MergeChroma(blur(1.5))
MergeLuma(blur(0.1))
#
#

## Linear Motion Adaptive Filtering ##
#
# ( Portions from AviSynth's manual )
# This will apply variable temporalsoften
# and variable blur.
# Both filters are active at all times, and work inversely proportional to the
# activity, measured from current frame to next frame.

ScriptClip(" nf = YDifferenceToNext()" +chr(13)+ "unfilter( -(fmin(round(nf)*2, 100)), -(fmin(round(nf)*2, 100)) ).TemporalSoften( fmin( round(2/nf), 6), round(1/nf) , round(3/nf) , 1, 1)  ") 

## Functions ###

function fmin( int f1, int f2) {return ( f1<f2 ) ? f1 : f2}

Dialhot · #34 10-15-2005, 01:24 PM

move the addborders line after all the filters. The result will be better, and the encoding faster.
You can remove the Merge* if you plan to put the result on a DVD or on 2 CDs. Else keep them here. There reduce the filesize without affectig too much the quality of the picture.