NTSC Anamorphic 1.85:1 vs 2.35:1 DVD's

[BruceCharl]

The following is definately a newbie post, but I haven't been able to find an answer in the FAQ, forums, etc -- so here goes.

Firstly, all my backups for standard 16:9 DVD's are excellent -- no problems whatsoever using DVD2SVCD v1.0.7b4.

Also, I get excellent results on my 4:3 TV when backing up anamorphic 2.35:1 DVD's. The movie image takes up about 1/2 of my 36" TV's screen and the quality is excellent.

The problem is with anamorphic 1.85:1 DVD's. The quality is very noticeably inferior to the anamorphic 2.35:1 or standard 16:9 DVD backups and the movie image takes up about 2/3 of my TV screen.

I'm using 99% default settings within DVD2SVCD. For example, I'm having the problem descibed above with Saving Private Ryan. DVD2SVCD shows a movie length of 2:49 and aspect ratio of 16:9. I select CCE encoder with all the default settings. On the bitrate tab, I simply change CD size to 800 and leave all the other defaults to produce a 3 CD backup. I create 192KB audio bitrate with no downsampling. I Also create CVD subtitles. The log file is shown below.

So I guess the question is:
1. How can I encode a 1.85:1 DVD so that it is standard 16:9 wide screen size -- about 1/2 of my viewable TV screen versus it's current 2/3. I would like to keep all my backups as standard 16:9 widescreen so when I upgrade to a widescreen TV, the backups will already be made for it.
2. Also, how can I increase the quality of the anamorphic 1.85:1 backups.

Thanks for any suggestions!

Log File:
--------
Key found: E26F73ECA9
--------------------------------------------------------
- 3/18/2002 8:25:13 AM
- DVD to SVCD Conversion
- DVD2SVCD ver. 1.0.7 build 4
--------------------------------------------------------
Initializing
WARNING! You seem to be using "Norton Unerase Protection" and
you want to delete the temporary files created by dvd2svcd.
This can cause DVD2SVCD problems. Even though DVD2SVCD deletes
the temporary files, Norton doesn't, therefore DVD2SVCD
might run into diskspace problems. I suggest that you stop the
"Norton Unerase Protection" Service.
Initializing finished.

--------------------------------------------------------
- 3/18/2002 8:25:17 AM
- Analyzing subtitles
--------------------------------------------------------
Subtitle found: StreamID: 0x20 Language: English

Executing subtitle selection/verification.
Showing next subtitle.
Subtitle found: StreamID: 0x20 Language: English
Showing next subtitle.
Subtitle found: StreamID: 0x20 Language: English
Showing next subtitle.
Subtitle found: StreamID: 0x20 Language: English
Subtitle selection/verification accepted.
--------------------------------------------------------
- 3/18/2002 8:27:03 AM
- Free on drive C: 22492.49 mb
- Internal rip
--------------------------------------------------------
Preparing vobfiles to be ripped:
- E:\VIDEO_TS\VTS_01_1.vob
- E:\VIDEO_TS\VTS_01_2.vob
- E:\VIDEO_TS\VTS_01_3.vob
- E:\VIDEO_TS\VTS_01_4.vob
- E:\VIDEO_TS\VTS_01_5.vob
- E:\VIDEO_TS\VTS_01_6.vob
- E:\VIDEO_TS\VTS_01_7.vob

Ripping: E:\VIDEO_TS\VTS_01_1.vob
Ripping: E:\VIDEO_TS\VTS_01_2.vob
Ripping: E:\VIDEO_TS\VTS_01_3.vob
Ripping: E:\VIDEO_TS\VTS_01_4.vob
Ripping: E:\VIDEO_TS\VTS_01_5.vob
Ripping: E:\VIDEO_TS\VTS_01_6.vob
Ripping: E:\VIDEO_TS\VTS_01_7.vob
Ripping finished. Speed: 3082

--------------------------------------------------------
- 3/18/2002 9:04:47 AM
- Free on drive C: 15680.69 mb
- Extracting the subtitles.
--------------------------------------------------------

Subtitle extraction finished. Extracted these subtitles:
SVCD Stream no: 1 Language: English Num. of subs: 2502

Saving Subtitles
--------------------------------------------------------
- 3/18/2002 9:16:26 AM
- DVD2AVI
--------------------------------------------------------
Creating DVD2AVI INI file:
- C:\Program Files\DVD2SVCD\DVD2AVI\DVD2AVI.INI

Variable settings:
iDCT_Algorithm: 32-bit SSE MMX

Executing DVD2AVI.
Executing DVD2AVI. Commandline:
"C:\Program Files\DVD2SVCD\DVD2AVI\DVD2AVI.exe" -IA=1 -CS=2 -YR=1 -EXIT -OF=[C:\TEMP\DVD2AVI_Project_file] -IF=[C:\TEMP\VTS_01_1.vob,C:\TEMP\VTS_01_2.vob,C:\TEMP\VTS_01_3.vob,C:\TEMP\VTS_01_4.vob,C:\TEMP\VTS_01_5.vob,C:\TEMP\VTS_01_6.vob,C:\TEMP\VTS_01_7.vob]
Analyzing DVD2AVI Project file
Force Film activated!
Framerate: 23976
DVD2AVI processing done.

--------------------------------------------------------
- 3/18/2002 9:23:36 AM
- Free on drive C: 15658.66 mb
- AUDIO Extraction
--------------------------------------------------------
Found AC3 stream id: 0x80
Filename: C:\TEMP\Extracted_audio_1.ac3
Audio1 delay: 0 ms
Audio extraction finished.

--------------------------------------------------------
- 3/18/2002 9:32:38 AM
- Free on drive C: 15115.67 mb
- AUDIO conversion
--------------------------------------------------------

Converting Audio to MP2. Filename: C:\TEMP\Extracted_audio_1.ac3
Executing BeSweet. Commandline:
"C:\Program Files\DVD2SVCD\BeSweet\BeSweet.exe" -core( -input "C:\TEMP\Extracted_audio_1.ac3" -output "C:\TEMP\Encoded_audio_1.mp2" -logfile "C:\TEMP\Encoded_audio_1.log" ) -azid( -L -3db -c normal ) -ota( -g max ) -2lame( -e -b 192 -m s )
Audio conversion of C:\TEMP\Extracted_audio_1.ac3 finished.

Audio conversion finished.

--------------------------------------------------------
- 3/18/2002 10:11:18 AM
- Free on drive C: 15425.94 mb
- Converting Pictures
--------------------------------------------------------
Converting: C:\Program Files\DVD2SVCD\DefaultChangeCD.bmp
Finished converting pictures
--------------------------------------------------------
- 3/18/2002 10:11:24 AM
- Free on drive C: 15425.14 mb
- Video Encoding using Cinema Craft
--------------------------------------------------------

Executing Cinema Craft Encoder.
StreamSectors: 2497628364
AudioSectors: 247457196
VideoPAPO: 34856352
ScanOffsetBytes: 292520
SeqAligningBytes: 18591297
VideoEndHeader: 12
SubtitleSectors: 9033388
EmptySectors: 238.00
PictureSectors: 600.00
PureMPEGStream: 2187397599.07
Seconds: 10173.13
CalcMPEGStream: 2187397599.07
Frames: 243767
CDSize: 800.00
Cut point 791.00
Variable Settings:
Frames: 243767
Anti Noise Filter: 2
Passes: 4
Image Quality: 17
VAF file creation: On
Video Encoding Mode: Multipass VBR
Min. bitrate: 300
Max. bitrate: 2530
Avg. Bitrate: 1720
Closing program
Video Encoding finished.

--------------------------------------------------------
- 3/18/2002 10:29:04 PM
- Free on drive C: 13280.82 mb
- Video Pulldown
--------------------------------------------------------
Executing Pulldown. Commandline:
"C:\Program Files\DVD2SVCD\pulldown\pulldown.exe" "C:\TEMP\Encoded_Video_CCE_NTSC.mpv" "C:\TEMP\Pulldown_Encoded_Video_NTSC.mpv"
Video pulldown finished.

--------------------------------------------------------
- 3/18/2002 10:38:52 PM
- Free on drive C: 11196.12 mb
- Converting Pictures from ES to PS
--------------------------------------------------------
Saving bbMPEG settings: C:\Program Files\DVD2SVCD\bbMPEG\default.ini
--------------------------------------------------------
- 3/18/2002 10:38:54 PM
- Free on drive C: 11196.11 mb
- Converting Pictures from ES to PS
--------------------------------------------------------
Saving bbMPEG settings: C:\Program Files\DVD2SVCD\bbMPEG\default.ini

Executing RunbbMPEG. Commandline:
"C:\Program Files\DVD2SVCD\bbMPEG\RunbbMPEG.exe" "C:\TEMP\ChangeCDPicture.bmp.mpg"
--------------------------------------------------------
- 3/18/2002 10:38:57 PM
- Free on drive C: 11196.07 mb
- Multiplexing and cutting
--------------------------------------------------------
Saving bbMPEG settings: C:\Program Files\DVD2SVCD\bbMPEG\default.ini
Offset in Seconds: 2
Executing bbMPEG.
Variable Settings:
Movie offset: 2 seconds
Cut point: 791 mb

Executing RunbbMPEG. Commandline:
"C:\Program Files\DVD2SVCD\bbMPEG\RunbbMPEG.exe" "C:\TEMP\bbMPEG_Muxed_File.mpg"
Length of C:\TEMP\bbMPEG_Muxed_File00.mpg
3301 Seconds
Offset in Seconds: 3303
Executing bbMPEG.
Variable Settings:
Movie offset: 2 seconds
Cut point: 791 mb

Executing RunbbMPEG. Commandline:
"C:\Program Files\DVD2SVCD\bbMPEG\RunbbMPEG.exe" "C:\TEMP\bbMPEG_Muxed_File.mpg"
Length of C:\TEMP\bbMPEG_Muxed_File01.mpg
3426 Seconds
Offset in Seconds: 6729
Executing bbMPEG.
Variable Settings:
Movie offset: 2 seconds
Cut point: 791 mb

Executing RunbbMPEG. Commandline:
"C:\Program Files\DVD2SVCD\bbMPEG\RunbbMPEG.exe" "C:\TEMP\bbMPEG_Muxed_File.mpg"
Multiplexing and cutting finished.

--------------------------------------------------------
- 3/18/2002 11:18:03 PM
- Free on drive C: 8821.62 mb
- Determining length of audio
--------------------------------------------------------
Analyzing: C:\TEMP\bbMPEG_Muxed_File00.mpg
3304.752 seconds C:\TEMP\bbMPEG_Muxed_File00.mpg
Analyzing: C:\TEMP\bbMPEG_Muxed_File01.mpg
3429.936 seconds C:\TEMP\bbMPEG_Muxed_File01.mpg
Analyzing: C:\TEMP\bbMPEG_Muxed_File02.mpg
3437.784 seconds C:\TEMP\bbMPEG_Muxed_File02.mpg
Analyzing finished.

Saving Subtitle Timecodes.
SVCD subtitles.
Length of C:\TEMP\bbMPEG_Muxed_File00.mpg
3304
Length of C:\TEMP\bbMPEG_Muxed_File01.mpg
3429
Length of C:\TEMP\bbMPEG_Muxed_File02.mpg
3437
--------------------------------------------------------
- 3/18/2002 11:21:00 PM
- Free on drive C: 8819.73 mb
- Multiplexing CVD Subtitles
--------------------------------------------------------
Muxing English subtitles, CD 1
Executing SubMux. Commandline:
"C:\Program Files\DVD2SVCD\SubMux\SubMux.exe" -s0 -C "C:\TEMP\bbMPEG_Muxed_File00.mpg" "C:\TEMP\en1-1.sub" "C:\TEMP\bbMPEG_Muxed_File-subbed00.mpg"
Muxing English subtitles, CD 2
Executing SubMux. Commandline:
"C:\Program Files\DVD2SVCD\SubMux\SubMux.exe" -s0 -C "C:\TEMP\bbMPEG_Muxed_File01.mpg" "C:\TEMP\en1-2.sub" "C:\TEMP\bbMPEG_Muxed_File-subbed01.mpg"
Muxing English subtitles, CD 3
Executing SubMux. Commandline:
"C:\Program Files\DVD2SVCD\SubMux\SubMux.exe" -s0 -C "C:\TEMP\bbMPEG_Muxed_File02.mpg" "C:\TEMP\en1-3.sub" "C:\TEMP\bbMPEG_Muxed_File-subbed02.mpg"
Muxing subtitles finished
--------------------------------------------------------
- 3/18/2002 11:36:48 PM
- Free on drive C: 6437.33 mb
- Creating CD-Images using VCDXBuild
--------------------------------------------------------
- No. of chapters to create: 7

CD image #1: CD_Image_File_CD1.bin

Executing VCDXBuild. Commandline:
"C:\Program Files\DVD2SVCD\VCDImager\VCDXBuild.exe" --cue-file="C:\TEMP\CD_Image_File_CD1.cue" --bin-file="C:\TEMP\CD_Image_File_CD1.bin" "C:\TEMP\VCDXBuild_Script_1.xml"
--------------------------------------------------------
- 3/18/2002 11:43:27 PM
- Free on drive C: 6423.50 mb
- Creating CD-Images using VCDXBuild
--------------------------------------------------------
- No. of chapters to create: 8

CD image #2: CD_Image_File_CD2.bin

Executing VCDXBuild. Commandline:
"C:\Program Files\DVD2SVCD\VCDImager\VCDXBuild.exe" --cue-file="C:\TEMP\CD_Image_File_CD2.cue" --bin-file="C:\TEMP\CD_Image_File_CD2.bin" "C:\TEMP\VCDXBuild_Script_2.xml"
--------------------------------------------------------
- 3/18/2002 11:49:57 PM
- Free on drive C: 6409.02 mb
- Creating CD-Images using VCDXBuild
--------------------------------------------------------
- No. of chapters to create: 7

CD image #3: CD_Image_File_CD3.bin

Executing VCDXBuild. Commandline:
"C:\Program Files\DVD2SVCD\VCDImager\VCDXBuild.exe" --cue-file="C:\TEMP\CD_Image_File_CD3.cue" --bin-file="C:\TEMP\CD_Image_File_CD3.bin" "C:\TEMP\VCDXBuild_Script_3.xml"
CD-Image creation finished.

--------------------------------------------------------
- 3/18/2002 11:56:33 PM
- Free on drive C: 6396.14 mb
- SVCD Creation finished!
--------------------------------------------------------

[Bob01605]

"@2. Also, how can I increase the quality of the anamorphic 1.85:1 backups"

I wouldn't judge the quality of any encode using "Saving Private Ryan". This movie has a known "grainy" sort of "documentary" look to it. Each movie is different source material and has to be judged on its own merits. In your log you show a bitrate of 1720. Even in a 4 pass VBR you might do better to bite the bullet and use FOUR 80 min Cd's for "Saving Private Ryan". Your bit rate would jump to about 2370 and the results would look better on screen ..
In the last month two movies I encoded seemed to have very high source material - One was "Vertical Limit" and the other was "Gladiator" . It is really hard to compare two different movies with two different encoding methods. If you want to make comparisons use one chapter of the SAME movie and make sure that movie is good source material to begin with.

Bob

[herbapou]

The movie Bounce is an anamorphic 1.85:1 DVD's and it look great on TV. It was encode with a bitrate of 1785 (2 80 mins CD).

I kind of like this format, gives a bigger image on my TV :)

[DDogg]

Ditto on SPR. This movie is the bane of all encoders. It will not compress worth a damn so the advice to use 4 cds is right on. You might want to play with using TemporalSmoother 2,1 or 3,1 but it will really slow you down. Try it on a one or two chapter rip first to see if it helps and is worth the longer encoding time. Alternatively, you might want to try a test using bilinear resizing as it tend to naturally cut some of the noise at a slight cost in crispness.

[Morgster]

Sorry to break the news, but your 16:9 SVCDs won't be what you expect when you "upgrade" to a widescreen TV. It's kinda confusing, but the way the dialogue boxes in DVD2SVCD are written, it assumes you have a 4:3 TV. Therefore, when it defaults a widescreen movie to 16:9 it encodes the picture with black bars and all so you can view a properly porportioned widescreen image on a standard TV. If you take that same SVCD and play it on a widescreen TV it will either display as a box in the middle of the screen with bars all around or stretched out and icky. There's a really excellent discussion, with pictures and all, around here somewhere. Bottom line is, the only way to make it work would be to make a another back up of a 16:9 DVD in 4:3 to play on your widescreen TV. It won't work on your 4:3 TV, but it should be find on widescreen. It will be a bigger encode, about 33% more data, I believe.

[willster2k]

Originally posted by Morgster
It won't work on your 4:3 TV, but it should be find on widescreen. It will be a bigger encode, about 33% more data, I believe.

It should work - only the images (eg people) will be stretched upwards !!

[xrv1138]

morgster:
a lot of 4:3 tvs have 'widescreen mode'
so anamorphic svcds can be compressed by the tv to correct aspect ratio which means that the encodes are fine now for 4:3 and good for future widescreen tv use as well
hopefully BruceCharl has one of these

[herbapou]

ouch, this is bad news.

How come its not using full zoom 480x480 and flag the movie to 16:9? This setting should give you a letter box on 4:3 TV and a full screen on 16:9 TV. Am I right???

I was planning on buying a 16:9 TV has my next TV. I was assuming my SVCD would work has expected on both. Looks like I will have to start over, damn...

What are the setting to make a movie that will work letterbox on 4:3 and full screen on 16:9 ???

[Ru$$Rip]

HI all, As Doggy says the wording in DVD2SVCD is confusing :

If you have a widescreen television you must convert in 4:3 Format, If you own a 4:3 TV decode in 16:9.

Also if some of you dont know the differences between anamorphic goto this web site for an excellent graphical explanation!

http://www.dvdweb.co.uk/information/anamorphic.htm

[herbapou]

Excellent site to explain the difference between 2:35 and 1:85.

Now if I could convert my 2:35 DvD's to 1:85 when making SVCD (losing a small part of the left/right movie), I would not mind at all sticking with 4:3 tv's because the small black bar on top/bottom is less annoying when whatching a 1:85 on a 4:3 TV.

So, is it possible to do that with DVD2SVCD?

EDIT: I have discuss this with friends at lunch and we come to the conclusion it will be a good idea to crop 2:35 movies into 1:85. Lots of people dont mind loosing a bit image to have a bigger image on there TV. So I will definatly do that with my 2:35 movies. Good thing I am only starting so I only did 2 movies so far, a 1:85 one and a 2:35 one. I hope I will a find a way to do this with DVD2SVCD cause I dont feel like going back to do all the steps manually...

[gerti67]

Hi herbapou,

you can actually do that in DVD2SVCD by editing the AviSynth script manually.

Start your conversion with DVD2SVCD as usual but make sure you have ticked the "Edit when dvd2avi processing is done" option in "Frameserver" tab before you hit the "Go!" button.

When the DVD2AVI processing is done a little window with the AviSynth script will appear. Edit and change it like this:

# SVCD PAL 2.35:1(1.85:1) anamorphic -> 16:9(4:3)
...
Crop(90,0,540,576) <= insert this line
SimpleResize(480,576) <= this line depends on the resize method
AddBorders(0,72,0,72) <= delete this line
...

# SVCD NTSC 2.35:1(1.85:1) anamorphic -> 16:9(4:3)
...
Crop(90,0,540,480) <= insert this line
SimpleResize(480,480) <= this line depends on the resize method
AddBorders(0,60,0,60) <= delete this line
...

Then hit the "OK" button of the AviSynth script window and the conversion process will continue as usual but you will end up with a 2.35:1(1.85:1) movie converted to 16:9(4:3) format.

Greetings,
Gerti

P.S. If you hit the "Save" button of the AviSynth script window you can use the "AviSynth_Script_file.avs" from the default output folder to preview it in Windows Media Player to see if everything is correct but don't be afraid if it is a bit jerky or the colors are a little different - that will not be the case in the converted movie

[herbapou]

Thanks a lot gerti67 I will try when I get home with just one chapter and burn it to a CD-RW for testing...

[herbapou]

It worked for 2.35:1 (16:9) movies... thanks a lot (It work with Pearl Harbor)

But I have another problem, I also have letterbox old movies (that look the same has 2.35:1) but they are flag has 4:3 instead of 16:9.

I want to convert them too to 1.85:1 also. When I apply your setting with those movies I see that the movie was crop left and right but it didnt strech out verticaly. So the aspect ratio is screw up.

The movie is: For a few dollars more, region 1 NTSC.

[markrb]

Letterbox movies have the black bars encoded as part of the video so the video is actually 4:3. You would need to remove these black bars from the DVD video. I have never really tried so I can't help in this regard.

Mark

[gerti67]

Hi herbapou,

for letterboxed movies with a 4:3 aspect ratio the script should be changed as follows:

# PAL 4:3 letterboxed
...
Crop(90,72,540,432)
BicubicResize(480,576,0.00,0.60)
...

# NTSC 4:3 letterboxed
...
Crop(90,60,540,360)
BicubicResize(480,480,0.00,0.60)
...

But be aware, with this the source gets stretched vertically too (from 432/360 pixels height to 576/480 pixels height) so it is recommended to use the BicubicResize method because the SimpleResize method is not really good in stretching and the Bilinear also but still better as the Simple one.

Greetings,
Gerti

[trutifuti]

I’m trying to make a PAL SVCD from at DivX movie. The video size is 640x272 so when set to 4:3 in AVI2SVCD the aspect ratio isn’t correct. It needs to be cropped in top and bottom.

How is that done Gerti67

[herbapou]

Thanks for your help gerti67, both the 2.35:1 anamorphic and 2.35:1 letterbox settings worked.

Now all my SVCD's look the same :)

[gerti67]

Hi trutifuti,

I think it should be done this way:

...
BicubicResize(480,334,0.00,0.60)
AddBorders(0,121,0,121)
...

This will stretch the AVI to the entire TV screen (only left and right borders) for a PAL SVCD with 480x576 if you want to get rid of the black borders on top and bottom you have to crop a lot from the left and right so it is not recommended.

Greetings,
Gerti

[trutifuti]

Sorry Gerti, I obviously didn’t give you sufficiently information. Here comes :

My TV is a16:9 and PAL, so when I choose an aspect ratio of 4:3 in DVD2SVCD it normally gives the correct result when played back and after stretching the screen on my TV to 16:9 (no black bares)

With this AVI it is different. Using same procedure as above, the aspect ratio isn’t correct. The picture needs to “pressed” in top and bottom to look right.

So what you are suggesting looks like it is on the right track but I think the numbers are wrong?


Trutifuti

[gerti67]

Hi trutifuti,

hmm, ok, if you have a 16:9 TV set and you want to make a "anamorphic" SVCD then the AviSynth script should look like this for your AVI source:

...
BicubicResize(480,448,0.00,0.60)
AddBorders(0,64,0,64)
...

The AddBorders command should be correct as your AVI is in 2.35:1 format.

You have to tick the "Edit as part of video encoding" or the "Edit when dvd2avi ..." option in "Frameserver" tab to edit the AviSynth script and change it like above.

When editing the AviSynth script and changing it, it doesn't matter if you choose 4:3 or 16:9 in "Conversion" tab.

Greetings,
Gerti

[trutifuti]

Thanks Gerti, I will get back with the result.

[trutifuti]

You are the Master, Gerti.

Best regards

Trutifuti

P.S. How do I calculate this my self? Or is it standard numbers. If so, could you please list them?

[gerti67]

Ok, I try to keep it simple:

Your source is a 640x272 AVI(DivX) with a aspect ratio of 2.35:1 (640/272=2.35) and a real pixel aspect ratio of 1:1.

PAL TV standard is 720x576 so you have to stretch your AVI to horizontally fit this format. This would be 720x306 if you keep the correct aspect ratio of your AVI with a 1:1 pixel aspect ratio of your monitor. Edit: (Because 720/640=1.125 so you have to stretch the height of 272 by 1.125 also to keep the correct aspect ratio and you get 272x1.125=306).

But you want to see it on the TV so you have to correct this with the TV pixel aspect ratio which is 54:59 for PAL. So you calculate 306/(54/59)=334 this would be the correct value for your TV now.

Now you just have to add the correct borders to make it fit the PAL SVCD standard of 480x576 by calculating (576-334)/2=121. The 720 pixels always have to be resized to 480 and will be automatically stretched back by the standalone player to 720 again.

So you get:
...
AnyResize(480,334)
AddBorders(0,121,0,121)
...

If you want to make your SVCD anamorphic then you have to correct the value of 334 with the 16:9-4:3 conversion factor which is (16/9)/(4/3)=(4/3)=1.33 and you calculate 334x(4/3)=445.33 and round up to 446 - thats it. Now calculate the correct borders again

and you get:
...
AnyResize(480,446)
AddBorders(0,65,0,65)
...

I told you (480,448) - that was a CCE macro block optimization that kicks in when the resize values can be divided by 16 without a rest - so I rounded up from 446 to 448 and the borders were 64 then. It's that easy. ;)

Or you use a tool like FitCD for that but you have to know how to enter the correct values into all those boxes. Have a look at it.

http://mitglied.lycos.de/fitcd/

Hope that helps,
Gerti

[trutifuti]

I have a lot to learn, but sooner or later I’ll get it.
Thanks a lot Gerti

Best regards

Trutifuti

[Sylfest]

Gerti

First of all thanks to you (the master) for excelent help.

Secondly, I am having an issue similar to trutifuti and need your help. I am trying to convert AVI (divx) movies into anamorphic SVCD's (made for 16:9 TV) with DVD2SVCD but the apect ratio comes out wrong.I found this thread and it explained a lot. I understand that in order to make it work right, I have to change the AviSynth scrip. I however am trying to make the SVCD compatible with NTSC, and of course the calculations are a little different. Tried using your steps to make it NTSC, and also tried FitCD and they came up with different results, could you please straigten me out!!

For 1:85:1 movies, my calulation is as follows:

The example source moive is 640x352 AVI(Divx) with an aspect ratio of 1.82 (640/352) close to 1.85:1 and a real pixel aspect ratio of 1:1

Streatching: 352x1.125=396
Correct for NTSC: 396/(11:10)=360
Anamorphic: 360x(4/3)=480

I then get:

AnyResize(480,480)
AddBorders(0,0,0,0) - or simply no AddBorders line at all

FitCD gave me:

BicubicResize(448,446,1/3,1/3,40,113,640,350)
AddBorders(16,17,16,17)

(I actually see that 16x2+448=480 and 17*2+446=480,and I think the borders are added because they are outside the TV scan range anyway!! I guess what is not seen does not need to be coded, but I am not sure if that is for all TV's including 16:9 HD widescreen's aswell. Im not sure if I should use the borders?)


For 2.35:1 movies, my calculations are as follows:

Source 640x272 AVI with aspect ratio of 2:35:1 and real pixel aspect ratio 1:1

Streaching: 272x1.125=306
Correct for NTSC: 306/(11:10)=278.182
Anamorphic: 278.182x(4/3)=370.91 - round up to 382 to make it divisible by 16
Borders: 480-382= 98/2 = 49

I then get:

AnyResize(480,382)
AddBorders(0,49,0,49)

FitCD gave me:

BicubicResize(448,350,1/3,1/3,43,152,634,272)
AddBorders(16,65,16,65)

Are my calculations correct, or FitCD, or will they both work ok?? Could you please tell me the correct calculations to make anamorphic NTSC SVCD's for both 1.85:1 and 2.35:1.


Thanks


-Sylfest

[gerti67]

Hello Sylfest,

both calculations are correct. ;)

And you have calculated it correctly for NTSC also. If you haven't already seen, I've put up those resize questions to the Q&A (Q62-64) and in general, you can combine them altogehter.

The values from FitCD are also correct as it seems you have activated the "optimize for CCE" and the "Blocks TV-overscan" option or you have not entered the size of your source AVI in both rows, the "source" and the "film pixel" boxes.

The displayed movie is exactly the same with both values, but you can use the ones from FitCD as they're already optimzed for the "macroblock boundaries CCE bug" (so it has additionally cut of a 1-pixel line from the top and the bottom) and it is optimized for the TV-overscan area that usually is not visible on your TV so you can safe some bitrate.

In my opinion FitCD is sometimes hard deal with because there are so many paramters to play with and I've only put up the 3 basic resize questions to the Q&A as all possible combinations would have just inflated it too much and also some beginners might get confused also.

Hope that helps,
Gerti

[Sylfest]

Thanks Gerti

I also checked out the Q&A section and you have done a great job of explaining the issues. Again, you are the master.

- Sylfest