Dealing with 25FPS into DVD Compliant Stream

[Radio Radio]

I'm trying to run an HD AVC file through HCencoder to resize it and make it a dvd compliant stream. When I ran the mkv (with the muxed audio and video) through MediaInfo it said the FPS was 23.97. But after using MKV Demux and just indexing the AVC video stream with DGAVCIndex, it said the FPS was 25.

I want to run a basic avisynth script with HCEncoder:

Something like this:

AvCSource("C:\Movie\movie.dga")
Spline36Resize(720,480)
Colormatrix(mode="rec.709->rec.601")

But I need to get the FPS to 23.97 (and then I'd add the 3:2 pulldown with HCEncoder to make it DVD compliant).

Now would adding a line in my script: AssumeFPS(24000,1001), would that work? Or would that result in a jittery stuttering mess as far as the picture on playback.

Any help or suggestions would be appreciated.

[davexnet]

I would access the MKV itself with something like
FFVideoSource("C:\Users\Dave\Desktop\myfile.mkv", track=-1, seekmode=0)

Assuming the proper frame rate is 23.976 and you want to produce an NTSC dvd, just include pulldown in the HCenc
settings.

[Radio Radio]

I would access the MKV itself with something like
FFVideoSource("C:\Users\Dave\Desktop\myfile.mkv", track=-1, seekmode=0)

Assuming the proper frame rate is 23.976 and you want to produce an NTSC dvd, just include pulldown in the HCenc
settings.

Ahh ok, I'll give that a try. My understanding was that you had to extract the files from the MKV container and index them. I'll give your way a try. So just to clarify, when trying out your suggestion, would the following be an acceptable avisynth script:

FFVideoSource("C:\Desktop\myfile.mkv", track=-1, seekmode=0)
Spline36Resize(720,480)
Colormatrix(mode="rec.709->rec.601")

And then as you said, I'd include the pulldown in my HCenc settings?

Thanks for your help dave!

[jagabo]

Encode it at 25 fps progressive then use DgPulldown to add 3:2:3:2:2 pulldown flags. That way you don't have to change the audio.

[Radio Radio]

Encode it at 25 fps progressive then use DgPulldown to add 3:2:3:2:2 pulldown flags. That way you don't have to change the audio.

Hey jagabo, thanks for the response. How would I encode it as 25fps progressive? Anything special I have to with my avisynth script or the settings in HCEncoder?

[manono]

Anything special I have to with my avisynth script or the settings in HCEncoder?

No. It'll warn you but still let you encode, but that's not the answer if the original video is really 23.976fps.

Like davexnet, I'd also recommend FFVideoSource.

[Radio Radio]

Anything special I have to with my avisynth script or the settings in HCEncoder?

No. It'll warn you but still let you encode, but that's not the answer if the original video is really 23.976fps.

Like davexnet, I'd also recommend FFVideoSource.

Thanks manono, I'm going to try that out.