VCDQuality Forums - Easy PAL -> NTSC conversion...solution inside

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-- Easy PAL -> NTSC conversion...solution inside (http://forum.vcdq.com/showthread.php?threadid=63202)

Posted by hoozdapimp on 06-01-2005 01:21 AM:

Easy PAL -> NTSC conversion...solution inside

I know I've seen many threads on here asking how to convert from PAL to NTSC...I recently came across a very easy solution.

A typical workflow is as follows (assumes you are starting with PAL source material):

Demux the video and audio streams.
If the video is interlaced, deinterlace it to make it progressive. If it is already progressive, skip this step.
Resize the video to 720x480.
Encode the video to MPEG2 at 25fps progressive.
Run DGPulldown on the video MPEG2 stream to flag it up to 29.97fps (using the 25fps --> 29.97fps conversion).
Mux the audio and video into a program stream, or author a DVD using the audio and video streams.

Here is how I currently do this:
1) Run mpg/vob sete through DGIndex (this process usually takes about 1-2 minutes).
To do this open the file(s) with DGIndex and press F4, and choose the file to save it to. This will create a d2v file which you will use in step 2, and the demuxed audio file, which you will use in step 4).

2) Using whatever encoder you want to, re-encode the video size to 720x480 (note, make sure you do not change the frame rate). When using CCE or TMPGEnc, you can use the simple avisynth script such as:

quote:

LoadPlugin("C:\Program Files\Avisynth 2.5\Plugins\DGDecode.dll")
MPEG2Source("C:\Path\to\myFile.d2v")
LanczosResize(720,480)

Note: Make sure you replace the paths to correctly indicate where on your system your DGDecode.dll file is, and where you saved your d2v file to in step 1.

3) Once the video has been encoded, run the resized video file through DGPulldown and for the check the 25->29.97 box. DGPulldown can be downloaded here

4) Reauthor with original audio (which is extracted in step 1 using DGIndex), and the new video.

The advantages to this are:

The video frame rate does not have to change. This is the hardest part for these types of conversions, because it is what results in the video playing back jerky, or having a ghost effect.
The audio no longer has to be re-encoded to 29.97 or 23.97 fps, thus elminating any synch issues.

Enjoy!

Posted by stormer2k on 06-01-2005 09:58 AM:

thanks for the info, will give it a whirl later on today and post what happens

Posted by Neversoft on 06-01-2005 10:04 AM:

I've "stickied" this thread, hopefully people will spot the fucker before asking the same bloody question over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over again

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Posted by antihero on 06-01-2005 12:50 PM:

prison bitch status should go to the first noob that doesnt read this and posts for help

Posted by foomanchew24 on 06-08-2005 01:23 AM:

Is there a program that will tell me if my mpeg file is pal or ntsc before I go through the process above? Also, what version of tmpgenc do I need cause the one I have, TMPGEnc-2.521.58.169-Plus, doesn't recognize the mpeg file (I have converted it from dat to mpeg file format). Any and all help is apreciated, thanks.

Posted by mod[e] on 06-08-2005 05:37 AM:

quote:
Originally posted by foomanchew24
Is there a program that will tell me if my mpeg file is pal or ntsc before I go through the process above? Also, what version of tmpgenc do I need cause the one I have, TMPGEnc-2.521.58.169-Plus, doesn't recognize the mpeg file (I have converted it from dat to mpeg file format). Any and all help is apreciated, thanks.

load ur mpeg2 files with dvd2avi and when u click on preview it will tell u the aspect ratio and if its pal or ntsc....

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Posted by foomanchew24 on 06-08-2005 07:03 AM:

Thank you very much, and I solved the Tmpgenc problem so no I am in the process of trying out the above process. I'll let you guys know how it goes. Thanks for the help.

Edit: Well the above process works very well, although perhaps you skipped a few things, not sure though. DGIndex only demuxed (seperated) the audio and not the video for me. Not sure if it was supposed to do the video also. So I used tmpgenc to demux the video, then I resized it with tmpgenc and put it through dgpulldown and used dvd lab to author it and it worked great. Great way to keep the quality. Thanks alot!

Posted by hoozdapimp on 06-10-2005 03:19 AM:

quote:
Originally posted by foomanchew24
Thank you very much, and I solved the Tmpgenc problem so no I am in the process of trying out the above process. I'll let you guys know how it goes. Thanks for the help.

Edit: Well the above process works very well, although perhaps you skipped a few things, not sure though. DGIndex only demuxed (seperated) the audio and not the video for me. Not sure if it was supposed to do the video also. So I used tmpgenc to demux the video, then I resized it with tmpgenc and put it through dgpulldown and used dvd lab to author it and it worked great. Great way to keep the quality. Thanks alot!

You shouldn't need to demux the video....if you use TMPGEnc to encode, just don't tell it to encode the audio (I think in the program tell it to output ES as opposed to PS (elementary vs program streams). (or encode the audio, and just discard it).

Posted by ChuckLee on 07-13-2005 02:51 PM:

I did this method and the movie didnt play smoothly. It didnt look bad but it just didnt look natural. Maybe its just me dunno.

BTW I did the same movie over but changed the fps in tmpenc settings and instead of leaving them and doing the dgpulldown thing and it came out perfect.

__________________

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Posted by hoozdapimp on 07-14-2005 07:37 AM:

quote:
Originally posted by ChuckLee
I did this method and the movie didnt play smoothly. It didnt look bad but it just didnt look natural. Maybe its just me dunno.

BTW I did the same movie over but changed the fps in tmpenc settings and instead of leaving them and doing the dgpulldown thing and it came out perfect.

I think you must have messed up the steps then, because countless people have tried this, and it has worked successfully...you need to make sure you don't change the framerate, and just resize the image to 720x480....

Posted by nykid on 07-17-2005 12:10 AM:

guys, I followed the directions. it didnt work.

heres the info about my movie its the herbie fully loaded by centropy.

480x576
25,000fps
Interlaced
Pal format.

I dont understand what the avisync thing is. pLease bear with me this is all new to me. I have the entire movie in a mpg file Iafter I added chapters to it with dvd lab. please help its driving me nuts!

Posted by skieve on 07-27-2005 01:27 AM:

thx man

Posted by xsiv1 on 08-08-2005 11:31 PM:

I use Mainconcept v1.4.0 to convert Pal to NTSC (http://www.mainconcept.com/downloads.shtml)
I have been using this for over a year and have had flawless results. It's easy to use and displays video and audio information.

Posted by nykid on 08-09-2005 01:27 PM:

how muc hwas the program...the trial leaves a water mark.

Posted by STrunk on 08-09-2005 04:28 PM:

quote:
Originally posted by nykid
how muc hwas the program...the trial leaves a water mark.

haha, i use mainconcept's encoder also, hmmm i am having trouble remembering how much i paid for it though.

__________________
hmmm

Posted by xsiv1 on 08-09-2005 05:18 PM:

Re: the trial leaves a water mark.

Take a look in that place where you download your movies, there are scene releases of MainConcept.

**post edited by Neversoft to remove obvious "piracy help" :EMO: **

Posted by nykid on 08-10-2005 04:13 PM:

thanks for the info. I converted land of the dead with the above mentioned process and apparently in the action scenes it seems pixelated. not sure if its the method or the actual movie. I'll have ot check it out.

Posted by xsiv1 on 08-10-2005 11:13 PM:

Re: pixelated

I use a seperate PC for all my encoding, if this isn't possible for you then i suggest you do it at a time that you won't be using the PCs resources. Gaming chatting listening to MP3s while encoding will cause inconsistency with your encodes.

Posted by nykid on 08-10-2005 11:13 PM:

I just checked my files..apparently any pal-ntsc conversion Im gettin alot of pixelation in the action scenes. whats going on?

I just did another movie and its the same thing?

Posted by nykid on 08-11-2005 07:27 PM:

guys..I was able to "find" mainconcept 1.4

let me tell you...its the best program I have used so far. Land of the dead and Dukes of Hazard came out FLAWLESS...thanks so much for the help..the pal to ntsc conversion took MUCH less time than tmpgenc and was much higher quality..

thanks!

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