ntsc-film to PAL or NTSC

[Hoppy_miller]

hi all

What is the best way to convert a DIVX encoded file in NTSC-Film to either PAL or NTSC ? but keeping the file in DIVX format?

Thanks

[KingJohn]

Load into TMPGEnc, Load the template you want, then select File > Output to file > AVI > codec settings etc

[banjazzer]

I'm not sure why you want to do this, since all three formats will play on your PC. However...

If you want to convert to PAL the best way is to load the DivX into Virtualdub, set Audio>>No audio, Video>>Framerate>>set to 25fps. Save the avi (direct stream copy). This will have changed the framerate to 25fps, and will have shortened the DivX by a few minutes. Next save out the wav from the original DivX as an uncompressed wav. Load this wav into something like SoundForge or Cooledit, and shrink the wav to match the exact size of the new avi as shown in Virtualdub, and save it. Start up Virtualdub. Load the 25fps avi and set direct stream copy. Load the wav, full processing mode and choose mp3 compression. Save out the new avi which will be PAL. Alternatively, if you prefer VBR or ABR MP3 audio, convert the wav to MP3 using any prog you like, and interleave the video and audio using Nandub.

If the NTSC(film) film is good quality, you will have a good quality PAL DivX. Doing it any other way will introduce jerkiness, which you may or may not find acceptable. 8)

[KingJohn]

I'm not sure why you want to do this, since all three formats will play on your PC. However...

If you want to convert to PAL the best way is to load the DivX into Virtualdub, set Audio>>No audio, Video>>Framerate>>set to 25fps. Save the avi (direct stream copy). This will have changed the framerate to 25fps, and will have shortened the DivX by a few minutes. Next save out the wav from the original DivX as an uncompressed wav. Load this wav into something like SoundForge or Cooledit, and shrink the wav to match the exact size of the new avi as shown in Virtualdub, and save it. Start up Virtualdub. Load the 25fps avi and set direct stream copy. Load the wav, full processing mode and choose mp3 compression. Save out the new avi which will be PAL. Alternatively, if you prefer VBR or ABR MP3 audio, convert the wav to MP3 using any prog you like, and interleave the video and audio using Nandub.

If the NTSC(film) film is good quality, you will have a good quality PAL DivX. Doing it any other way will introduce jerkiness, which you may or may not find acceptable. 8)

You got to be kidding ?

What a load of waffle, why did you go to so much trouble to make yourself look so bad

[adam]

Wow how ironic.

Kingjohn your method actually won't even work, whereas Banjazzers method will.

When you use use TMPGenc to change your framerate it simply adds or decimates random frames to match the desired framerate. This is NOT how you convert between any regional format. If you wanted to use TMPGenc to convert from ntscfilm to ntsc than you would have to use the 3:2 pulldown filter in the advanced settings, something which is not in any default template and its not even possible to convert ntscfilm to pal in TMPGEnc, at least not correctly.

To test simply take a clip in say, ntscfilm and encode it to pal. If you used mpeg encoding then view each file in Bitrate Viewer, if you used avi then load them in virtual dub. Look at the framecount and you will see that it is different for each. When you telecine film to pal you simply speed up the playback speed, the number of frames does not change.

Virtualdub's framerate conversion, on the other hand, will handle these types of conversions properly. It will just speed up the clip rather than duplicate frames. If you want to go from ntscfilm to pal and maintain the avi file structure then this is probably the best way.

Going from ntscfilm to ntsc is really pretty pointless, as banjazzer stated. However if you want to do this you have to use a 3:2 pulldown filter. Simply setting your output framerate to 29.97fps will NOT work in any encoder.

Hoppy_miller if you want to convert to pal I recommend you follow banjazzers advice. If you want to convert to ntsc, well I don't recommend this at all but if you must then use KingJohn's method but enable the 3:2 pulldown filter in the advanced tab, NOT on the video tab.

As Banjazzer said, if you are only watching these on your pc then why bother converting to another format?

[KingJohn]

I sometimes wonder if you guy's actually do any conversion at all, or just talk about it. I don't have anything special here a all, but when I post, its a post from experience, and if the person is new to this, I don't frighten them off with all this waffle.

[adam]

How is it "waffle" if it is the simplest correct way to do it?

Bottom line TMPGenc cannot do the job he wants to do and you gave him very bad advice that simply will not work correctly. Yes I do, do these conversions that's why I know the correct way to do them.

[vitualis]

Let it go adam. From his other posts, KingJohn doesn't believe in doing proper PAL <--> NTSC/FILM conversions.

As what adam and banjazzer stated. That's probably the best (best in terms of quality) way to do a PAL <--> NTSC conversion. However, if your eyes don't mind the regular skipping effect (it seems not to bother some people) from simple frame duplication/decimation, that is simpler to do (e.g., just use TMPGEnc as KingJohn described in his post).

Regards.

[KingJohn]

How is it "waffle" if it is the simplest correct way to do it?

Bottom line TMPGenc cannot do the job he wants to do and you gave him very bad advice that simply will not work correctly. Yes I do, do these conversions that's why I know the correct way to do them.

Thats funny, it works well for me, maybe I have something better than you then ?

Closed
No futher use

[adam]

I already explained how you can verify why your method doesnt work. Apparantly you don't notice the pause every second caused by the duplicated frame. If you are satisfied with this then use your method, but that doesnt make it right.

[offline]

Avisynth allows you to do a better conversion video wise than V.dub but
overall the v.dub method is the easiest and there is not so much
pain with audio sync as you get with avisynth.

I have told people in the past about the Tmpgenc method
(pulldown)
as it is faster and simpler than using v.dub (if your video is
going to be a mpeg in the end) but always with the warning that the output may be very stilted , or unwatchable if the source was
orginally NTSCfilm.

KJ was wrong in his description of how to use tmpgenc, but
tmpgenc is still a valid, if poorer quality choice.