Padding out avi files to 25 frames per sec.

[yowie]

Howdy

Our family is in the process of getting all the old Super 8 movies converted to AVI so we can then burn them to DVD.

We have got a sample file from the camera shop and it is a frame to frame sample. Apparently we have to pad the file out from 18 frames p/s up to 25 frames p/s.

Can someone tell me what tool I need to use to do this frame padding.


Thanks

[Soopafresh]

Avisynth will do it. There are several different functions which can make it happen.

[manono]

Apparently we have to pad the file out from 18 frames p/s up to 25 frames p/s.

Not strictly true. You can encode for 18fps (or just about any framerate, actually) and afterwards apply DGPulldown with the Custom box ticked, and 18->25fps filled in. That will tell the player to play at 18fps but output at 25fps and it'll play more smoothly than just adding duplicate frames to get it to 25fps. The length and playback speed remains unchanged and you can use the original unstretched audio (if DVD compliant PCM, AC3, or MP2).

This is best done using AviSynth and without the use of any DVD template in your encoder. If you're not careful, your encoder will start adding duplicate frames.

[Soopafresh]

Good suggestion, manono. Yeah, see if Dgpulldown works on your .M2V file.

[yowie]

Thanks for your help. Had a look at AViSynth and it looked kind of complicated. I know its easy for you guys.

Im looking for a easy solution.

What about commercial programs like Sony Vages and Adobe programs. Are any of those able to fix my problem.

[yowie]

Ive obviously done something wrong here.

Ive Used DGPulldown and opened the video file in it for the source file and it automatically set and output file destination.

Ive then selected custom and 18fps-25fps and hit run. It comes up with an error stating " The Input file must be and elementary stream, not a program stream.

Can someone put me on the right path please.

Thanks

[manono]

The Input file must be and elementary stream, not a program stream.

It wants an MPV or M2V, and not a VOB or MPG. It wants video alone, and not already muxed with the audio. You can open your VOB or MPG in DGIndex, go File->Save Project and Demux Video, and feed the resulting M2V into DGPulldown. The audio will be demuxed at the same time. Then, if you did the encoding right (a big if), you can author the pulldowned video and the audio for DVD afterwards.

[yowie]

I dont have any audio in the avi file.

I tried using the dmgpgdec program and it didnt respond.

This is what the web site says it is used for:

What is DGMPGDec?
DGMPGDec is an MPEG decoder suite. It is used to decode MPEG1 or MPEG2 streams from such sources as DVD VOBs, captured transport streams, *.mpg/*.m2v/*.pva files, etc. Perhaps its most common use is in decoding VOBs from DVDs.

I dont have vob files. I have an avi file about 450mbs in size

[manono]

I have an avi file about 450mbs in size

To apply pulldown you have to use a MPEG-2 file (MPV, M2V), not an AVI. Encode your AVI to DVD compliant MPEG-2 and try again.

DGIndex (part of the DGMPGDec package) doesn't open AVIs. If you plan on making DVDs, convert your AVIs first.