converting 1.222 aspect ratio to 4.3???????

[swarint]

Hello friends,
Pardon me if I have come to the wrong forum and/or if my query is wrongly worded.

My problem is with this .avi file, I need to have full screen and if I am not wrong the aspect ratio needs to be increased from 1.222 to 4.3, right???? How can I do that ? your suggestions most welcome and I quote the specs of this file-
qte

Format : AVI
Format/Info : Audio Video Interleave
Format/Family : RIFF
File size : 439 MiB
PlayTime : 2h 38mn
Bit rate : 385 Kbps

Video #0
Codec : XviD
Codec/Family : MPEG-4
Codec/Info : XviD project
Codec settings/BVOP : Yes
Codec settings/QPel : No
Codec settings/GMC : 0
Codec settings/Matri : Default
PlayTime : 2h 38mn
Bit rate : 244 Kbps
Width : 352 pixels
Height : 288 pixels
Aspect ratio : 1.222
Frame rate : 25.000 fps
Resolution : 8 bits
Chroma : 4:2:0
Interlacement : Progressive
Bits/(Pixel*Frame) : 0.096
Writing library : XviD0046

Audio #0
Codec : MPEG-1 Audio layer 2
PlayTime : 2h 38mn
Bit rate : 128 Kbps
Bit rate mode : CBR
Channel(s) : 2 channels
Sampling rate : 44 KHz
Resolution : 16 bits
unqte

Thanks a lot for your valuable tips and above all time .
Rgds
Ash

[guns1inger]

To start with, it's not really 1.2222. It is 1.333 (or 4:3) PAL VCD resolution. I don't know why it has been mis-read as 1.222, other than the pixel aspect ratio has not been taken into account.

The question that needs to be answered now is what do you want to do with it ?

Does it need to be converted to DVD format ?

If so, PAL or NTSC ?

I would not convert this to full-D1, as the results are likely to be disappointing.

[swarint]

Thanks a lot buddy for your flash reply.
Lets put it this way, since I am newB, I will take your adv.My main aim is to salavge this file without loosing too much on the quality. I can retain it as .avi or DVD, whatever is best as per your recommendation. I prefer to stick to PAL but again it is not compulsory. Cheers

[Cornucopia]

See, if your 352x288@25fps file were full-to-the-frame and MPEG1 format (as well as the 16bit/44100Hz/stereo/MP2 audio) it would be EXACTLY a VCD format (possibly not strictly VCD, depending upon bitrates etc). This is a 4:3 ratio, as it uses non-square PAL pixels (1:1.090909).
Your Xvid is most likely set up with square pixels. If you could modify the headers/flags of the PAR, you'd be set and wouldn't have to re-encode as long as your player(s) supported non-square pixels. However, most DON'T. So, you'll have to re-encode...

IF your picture is true, showing it as both letterboxed and pillarboxed, you'll want to crop and resize back to full-screen. 352x288, 704x576, etc. The 1st is most likely.

MPEG1 at VCD rates might be a good thing to get back to (1150kbps) as this is kind of comparable to the ~325kbps of this Xvid (MPEG4), especially when accounting for the pillarbox/letterbox.

You could go to DVD settings (at similar settings to VCD), but then you'd also have to re-encode the audio, resampling to 48kHz.

Are you wanting to use a settop player with this? Does your settop player support DivX/Xvid/MPEG4? You could re-encode as DivX/Xvid, but these are things you're going to have to consider first.

Scott

[swarint]

Thanks a lot ,Scott for your evaluation.

Yes I will use my settop player and it does support divx/xvid/mpeg4. Seeing your observations I guess I will have to re-encode somehow to a full screen ?. Kindly suggest possible way/s how to go about this mode. Cheers

Ashwin

[manono]

Hi-

Your picture shows it to be widescreen. Assuming the pic is at the correct AR, then you can just resize it to 544x288 and it should be OK. It seems to be standard 1.85:1 video. I'm assuming all that black was added later. If it's part of the pic, then 352x192 might work better. Anyway, if you know enough, (crop and) resize it in AviSynth before frameserving it into VDub. Or do the (cropping and) resizing in VDub itself before reencoding it to XviD.

Edit: And if the pic isn't at the correct AR (it's hard to tell), and it's really supposed to be 4:3, then cropping and resizing for 352x208 (or maybe 480x288) would be better. Followed by a reencode to XviD. That would make it a 1.66:1 movie (or thereabouts).

It's hard (for me anyway) to tell what you've done with that pic, as it's 640x268, and not at all the dimensions you quoted earlier. With only that pic to go on, it's hard to tell what you have and how it should be treated.

[swarint]

Ok friends, I will make it easy for yu folks now by attaching a video clip of the same. Pls have a look and adv what can be done. Am sure you will be able to judge this case better now. Thx to all for their efforts. Cheers

part2.xvid%20-%20xdb_chunk_1.avi

[swarint]

Ok friends, I will make it easy for yu folks now by attaching a video clip of the same. Pls have a look and adv what can be done. Am sure you will be able to judge this case better now. Thx to all for their efforts. Cheers

part2.xvid%20-%20xdb_chunk_1.avi

[swarint]

Ok friends, I will make it easy for yu folks now by attaching a video clip of the same. Pls have a look and adv what can be done. Am sure you will be able to judge this case better now. Thx to all for their efforts. Cheers
OOPS... SEEMS MSG WENT THRU THRICE, THE PC JUST HUNG FIRST 2 TIMES. SRY ABOUT THAT.
part2.xvid%20-%20xdb_chunk_1_chunk_1.avi

[manono]

This thing's 640x268. What happened to the 352x288 XviD from the first post? Whatever it is, it was made by an idiot. Every 5th frame is a dupe. The audio is garbage. And all that black is there for what reason?

[swarint]

Hei Manono,
The 352 x 288 info was derived from the file in my drive, The info sent be my is gotten from MEDIAINFO S/W.
The clip which was attached was from the same file and I split it with BOILSOFT splitter, maybe thats why yu got 640 x 268???
The files are d/l from a p2p network and believe me I have never had such a problem b4, I am confused myself why he used this mode with black borders when he ripped this from a DVD. If yu think it is not worth a dime to correct this, then I will put it in the garbage can. Ofcors I would miss this file but.. there will be another time. So kindly give final comments. Thx a lot

[manono]

Are you telling me that just splitting it changed the resolution?

I don't think so. Anyway, I'll retire from this one. I'm sure others will be along soon to help. Good luck.

[swarint]

My sincere aplogizes dear friends, I blundered badly. The specs were from a different file(unfort it ws in the same folder), so Manono yr email made me re-check this again, so pls ignore all above info and I will repost the correct specs. Terrible sry abt this, I hv been breaking my head since last 5 hrs trying to figure out how to solve this problem, thats why gone bonkers(almost)

[swarint]

This is the holy truth and the correct specs now
qte

format : AVI
Format/Info : Audio Video Interleave
Format/Family : RIFF
File size : 159 MiB
PlayTime : 54mn 50s
Bit rate : 398 Kbps

Video #0
Codec : XviD
Codec/Family : MPEG-4
Codec/Info : XviD project
Codec settings/BVOP : Yes
Codec settings/QPel : No
Codec settings/GMC : 0
Codec settings/Matri : Default
PlayTime : 54mn 50s
Bit rate : 257 Kbps
Width : 640 pixels
Height : 268 pixels
Aspect ratio : 2.35
Frame rate : 30.000 fps
Resolution : 8 bits
Chroma : 4:2:0
Interlacement : Progressive
Bits/(Pixel*Frame) : 0.050
Writing library : XviD0035

Audio #0
Codec : MPEG-2 Audio layer 3
PlayTime : 54mn 50s
Bit rate : 128 Kbps
Bit rate mode : CBR
Channel(s) : 2 channels
Sampling rate : 24 KHz
Resolution : 16 bits
unqte
Hope it is better this time around.... cheeersss

[Cornucopia]

Audio is bad mainly 'cuz it's such a low samplerate. At that point you can't use the MPEG1layer3, you have to resort to MPEG2layer3 (which is what it did). If you're playing with a MP3 player that only supports MPEG1layer3, it'll give you garbage (too bad, should have been coded better). If you're playing with a MP3 player that supports MPEG2layer3, you'll get a half-way decent signal with alot of "birdies" in it (aka compression artifacts), but still quite listenable. To make this work, re-compress to MPEG1layer3, 16bit, 44.1kHz sample rate, mono, CBR, at ?? 192 or 224kbps. Then, just about any mp3 player in the world should be ok with it (won't improve the quality any though).

VIDEO

Stick it in Vdub, add a null transform filter and crop it down (X1=146, X2=150, Y1=42, Y2=40) to 344x186.
Add a SmartResize filter and resize using Precise Bicubic to 640x346 (close enough). Pad with black for letterbox to 640x360 for use in 16:9 displays, or to 640x480 for use in 4:3 displays. This is all assuming your player doesn't support Anamorphic/Non-squarePixel AR.
Give it a good enough bitrate this time: >800kbps at least (play with this to see what works for you). Reencode to Xvid, with similar parameters for quant, framerate (although, to be anal about it, it probably should be 29.97!), etc.

HTH,

Scott

[swarint]

Thanks a mill Scott for yr guidance.
I will def try it out.
Have a nice day
Cheers

[swarint]

Yer a genius Scott, the file converted as per yr guidance. Alls well. Thx a million once again. Cheers

[swarint]

Hei Scott,
Hope you got my PM sent some mins ago. Here are some details and also enclosed a clip for your ready referance. Thx a lot for yr help once again. Brgds
Ashwin

SPECS OF FILE-
General #0
Complete name : C:\Documents and Settings\Computer\Desktop\Dance Dance - 1CD DVD Rip.XviD - XDB_chunk_1.avi
Format : AVI
Format/Info : Audio Video Interleave
Format/Family : RIFF
File size : 1.71 MiB
PlayTime : 34s 166ms
Bit rate : 408 Kbps
StreamSize : 76.3 KiB
Writing library : Boilsoft Joiner build 2411/release

Video #0
Codec : XviD
Codec/Family : MPEG-4
Codec/Info : XviD project
Codec settings/BVOP : Yes
Codec settings/QPel : No
Codec settings/GMC : 0
Codec settings/Matri : Default
PlayTime : 34s 166ms
Bit rate : 274 Kbps
Width : 720 pixels
Height : 480 pixels
Aspect ratio : 16/9
Frame rate : 30.000 fps
Standard : NTSC
Resolution : 8 bits
Chroma : 4:2:0
Interlacement : Progressive
Bits/(Pixel*Frame) : 0.026
StreamSize : 1.12 MiB
Writing library : XviD0035

Audio #0
Codec : MPEG-2 Audio layer 3
PlayTime : 34s 166ms
Bit rate : 126 Kbps
Bit rate mode : CBR
Channel(s) : 2 channels
Sampling rate : 24 KHz
Resolution : 16 bits
StreamSize : 526 KiB

[Cornucopia]

Audio: Do the same thing as last time. Hope that's a typo (126 Kbps should be 128, otherwise NONSTANDARD).

Video: 274 Kbps is rediculously low for full D1 material! I wouldn't be surprised if it looked like CRAP (sorry). Good thing is converting it --shouldn't-- be a big deal.
If your player supports DivX/Xvid and supports AR flags in DivX/Xvid...AND...your screen is just the complete image (no letterboxing/pillarboxing padding), then you SHOULD be good to go as is.
If your player doesn't support AR flags, but does support DivX, AND you have a fullscreen image (no letterboxing), you should just re-encode to Xvid with resizing up to 853x480 (or down to 640x360, depending on how you like your resizing algorithm).

If your player doesn't take DivX/Xvid, but your image is still fullscreen, re-encode to MPEG2 16:9 DAR--but DON'T RESIZE at all.

If you've got any letterboxing going on in the original image, you'll have to 1st figure out HOW MUCH, before you can do any more conversions on the video...

Scott