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View Full Version : How to do low res(320x240) -> high res.(720x480) conversion in CCE?


rapjp2001
11th February 2003, 17:05
Hi All,

I need some help!

I have this MOV format video that is in 320 X 240 resolution...I want to create a DVD compliant MPEG2 (720 x 480). How can I tell CCE to change the resolution of the image -- If I do the conversion as it stands in CCE, the MPEG2 has the 320x240 image centered within the 720x480 image with black bars on both the sides and top and bottom. What it is not doing is to change overall resolution of the image while keeping the aspect ratio -- something TMPEGEnc does easily and one can change this setting manually if they want.

What I am trying to avoid is to covert this MOV to a AVI (like DV NTSC) and then compress is to MPEG2(where the image res. is changed during the AVI conversion). I want to avoid this middle step and have CCE do the image increase (and add the black bars on the sides, since the doubling of image size leaves about 80 pixels) and thereby lose as little as possible from the source MOV to MPEG2

Now I know that increasing the image from 320x240 to 720 x 480 is not the best option, but this is a rare jazz concert footage that is only available in this format and I want to encode it to a DVD format.

Thanks

Rajiv

oddyseus
12th February 2003, 09:16
Use Tmpeg to do the conversion. Save as a project. Vfapi the tpr from tmpeg and feed CCE. However be advised that the quality will suffer at a degree proportional related to the original quality.

Calypso
12th February 2003, 10:13
CCE doesn't resize. But if you frameserve CCE with AviSynth, you can resize, addborders, etc within AviSynth. CCE then gets the resized frames and goes to work encoding. This is common knowledge- check the facts, guides, CCE forum, and AVISynth forum.

rapjp2001
12th February 2003, 18:03
Thanks oddyseus! I will try your way...I did not know that one could save a TMPGEnc TPR file and import it into VFApi and do what you need...More when I do this...

This is for Calypso, Does AVI Synth accept MOV files as well? I knew I could do what you point out with a AVI file, but was not sure if MOV files were permitted...Sorry if this is discussed somewhere, but I was not aware of it...

Rajiv

rapjp2001
12th February 2003, 18:31
Hey oddyseus,

How do you create a project file for a Quicktime MOV file in TMPGEnc...It does allow for MOV files to be accepted as input video streams...

Is there a method for importing MOV files in TMPGEnc to create a project?

Please advise...

Rajiv

rapjp2001
12th February 2003, 23:00
Ooops! Should have used that "search" button...Found all the answers to my previous queries abotu VFAPI and AviSynth...

Thanks

Rajiv

roach76
22nd February 2003, 15:17
Don't increase the resolution that high it will do you no good except increase the encode time and will not increase the quality. You should just use the same resolution or the next one up. Cause if you say, double the vertical and horizontal resolution, you end up with one pixel of a certain color being represented by four of the same color, no improvement at all, and it may need a slightly higher bitrate too because of the increase in resolution.

The lowest resolution supported by the DVD Standard is 352x240 in MPEG1 at a max bitrate of 1850 kbits/sec, or for a higher bitrate you can use the next resolution up at 352x480 in MPEG2 at a max bitrate of about 8000 to 9000. Just go as high as you need to go.