Display aspect ratio Help

[Caiosouza]

Why i getting 1.222 Display aspect ratio and not 4:3? Is correct this? Thank any help

Code:
SetMTMode(3)
DirectShowSource("C:\Documents and Settings\USER\Desktop\Sample-1991 MX 250 Full.mpg")
SetMTMode(2)
ConvertToYV12
SeparateFields()
PointResize(width,height*2)
Deblock_QED(last, quant1=35, quant2=40, aoff1=4, boff1=4, aoff2=4, boff2=4)
PointResize(width, height/2)
Weave()
QTGMC(preset="Slower")
aWarpSharp(depth=5)
nnedi3_rpow2(2, cshift="Spline64Resize", fwidth=width*2, fheight=height)
Sharpen(0.5, 0.0)
ColorYUV(gain_y=-48)
Crop(2,10,-6,-16).AddBorders(4,12,4,14)
AssumeTFF().SeparateFields().SelectEvery(4,0,3).We ave()



SOURCE:

General
Complete name : C:\Documents and Settings\USER\Desktop\1991 MX 250 Full.mpg
Format : MPEG-PS
File size : 944 MiB
Duration : 1h 17mn
Overall bit rate mode : Variable
Overall bit rate : 1 713 Kbps
Writing library : (c) 1998-2012 Womble Multimedia, Inc. / MPEG Video Wizard DVD 5.0.1.100 (03/2011) / Dec 6 2012

Video
ID : 224 (0xE0)
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings, BVOP : Yes
Format settings, Matrix : Custom
Format settings, GOP : Variable
Duration : 1h 17mn
Bit rate mode : Variable
Bit rate : 1 486 Kbps
Maximum bit rate : 9 396 Kbps
Width : 352 pixels
Height : 576 pixels
Display aspect ratio : 4:3
Frame rate : 25.000 fps
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.293
Time code of first frame : 00:00:00:00
Time code source : Group of pictures header
Stream size : 820 MiB (87%)
Writing library : (c) 1998-2012 Womble Multimedia, Inc. / MPEG Video Wizard DVD 5.0.1.100 (03/2011) / Dec 6 2012
Color primaries : BT.601 NTSC
Transfer characteristics : BT.601
Matrix coefficients : BT.601

Audio
ID : 189 (0xBD)-128 (0x80)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Muxing mode : DVD-Video
Duration : 1h 17mn
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel count : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 106 MiB (11%)

RESULT

Format : AVI
Format/Info : Audio Video Interleave
File size : 227 MiB
Duration : 49s 600ms
Overall bit rate : 38.4 Mbps
Writing library : VirtualDub-MPEG2 build 24586/release

Video
ID : 0
Format : Lagarith
Codec ID : LAGS
Duration : 49s 600ms
Bit rate : 36.9 Mbps
Width : 704 pixels
Height : 576 pixels
Display aspect ratio : 1.222
Frame rate : 25.000 fps
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Bits/(Pixel*Frame) : 3.640
Stream size : 218 MiB (96%)

Audio
ID : 1
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 1
Duration : 49s 600ms
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel count : 2 channels
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 9.08 MiB (4%)
Alignment : Aligned on interleaves
Interleave, duration : 40 ms (1.01 video frame)
Interleave, preload duration : 500 ms

[DB83]

Basically because Lagarith does not have a DAR flag and just a ratio between width and height with square pixels. Your source used non-square pixels and a DAR flag.

For 4:3 with Lagarith you would require 768*576

[Caiosouza]

Basically because Lagarith does not have a DAR flag and just a ratio between width and height with square pixels. Your source used non-square pixels and a DAR flag.

For 4:3 with Lagarith you would require 768*576

But if I demux the video and use Mpeg Source I'm correct with Lagarith , but I did not want to do it this way
would have some way, via directshow?

[DB83]

But leave as it is then you have a slightly squashed image.

If you intend to do a further conversion to a delivery format you can correct it later.

Or, I guess, you can revise your resize filter within avisynth. But, I repeat, only 768*576 will give you 4:3.

[Caiosouza]

Any Way to get 4:3 without demux video?

[Cornucopia]

Yes, use a player that properly supports the DAR flag.
It will stretch it to 4:3 during playback.

Scott

[DB83]

As Scott states you can force playback in players such as vlc with the Aspect Ratio set at 4:3.

But I do not believe this to be an ideal solution as you would have to do it each time you play the video.

Surely it is better to edit your avisynth script to include a resize. Eg:

Crop(2,10,-6,-16).AddBorders(4,12,4,14)
Spline64Resize (768,576)
AssumeTFF().SeparateFields().SelectEvery(4,0,3).We ave()

I am no expert in avisynth and someone could probably suggest a more elegant solution to the above one. But what I did notice is that your original script had re-interlaced the fields >> Weave() << BEFORE the command to double the video width. Surely that should be done in the progressive realm ?

[jagabo]

nevermind

[manono]

But if I demux the video and use Mpeg Source I'm correct with Lagarith , but I did not want to do it this way
would have some way, via directshow?

What do you care what it is with Lagarith as it won't be your final format. Whatever is the intended final format, either set a SAR/DAR when encoding or resize to square pixel when making the Lagarith AVI the first time.

But if I demux the video and use Mpeg Source I'm correct with Lagarith , but I did not want to do it this way
would have some way, via directshow?

The best way is as you're doing it already (I think). Make a D2V project file using DGIndex and open it using MPEG2Source.

[Caiosouza]

Thanks for all (All the same), I going to MPEG2Source, but I'll test this before: Crop(2,10,-6,-16).AddBorders(4,12,4,14)
Spline64Resize (768,576)
AssumeTFF().SeparateFields().SelectEvery(4,0,3).We ave() (Thanks)



PS:Are you in a bad mood today, master?

[manono]

PS:Are you in a bad mood today, master?

Is that meant for me? If so, haven't you done enough video work to know AVIs don't usually have a DAR flag, and it doesn't matter anyway if a Lagarith AVI is just an intermediate file? If you did know, this whole thread is pointless. If you didn't know, DB83 gave you the answer in the first reply and the rest of the thread is pointless.

And the end format is MP4 or MKV or something besides DVD, I presume, and you're keeping black on all four sides around it? You must have your reasons, I suppose. Overscan, maybe? If you posted a sample, maybe someone could provide more informed advice.

[Caiosouza]

The topic would be useless if I did not get any help, any answer.

F-i-v-e S-t-a-r-s

How about some coffee now? Thanks all