Avisynth video playback twice as fast

[honza.v]

Hi,
i have been trying and searching for a number of hours but cannot get this to work... I would like to process a video using Avisynth however I am unable to get it loaded correctly. Here is what I have: a video MOV001.MOD from Canon FS100 digital camera, this is what ffmpeg says about the content (directly downloaded from the cam):

Seems stream 0 codec frame rate differs from container frame rate: 50.00 (50/1) -> 25.00 (25/1)
Input #0, mpeg, from 'mov001.mod':
Duration: 00:09:07.64, start: 0.227389, bitrate: 7843 kb/s
Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x576 [PAR 16:15 DAR 4:3], 9600 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0.1[0x80]: Audio: ac3, 48000 Hz, stereo, s16, 256 kb/s

I am able to play it nicely in VLC or MPC or open it in VirtualDub and process it there. However, when I try to open it using Avisynth, I get the video played about twice as fast. I was experimenting with various deinterlacing methods but could make it work correctly.

This .AVS file gives me about twice faster playback:
DirectShowSource("mov001.mod")

And this gives correct playback speed but the video is very jerky, like if every second frame was missing:
DirectShowSource("mov001.mod", convertfps=true)

If I convert the MOD into AVI using copy codecs and then try to load it using AVISource, I get the following error "AVISource: couldn't locate a decompressor for fourcc mpg2".

Can anybody help on what to do in order to have a smooth AVS?
Thx
Jan

[Soopafresh]

Try changing your .MOD extension to MPG, then open the file in DVDpatcher and set the FPS for 25.




Then you index the MPG file with DGindex and use the resulting .d2v file for input in Avisynth

Copy the dgdecode.dll file into your avisynth plugins folder. It's in the zip file.

Then the Avisynth syntax is

MPEG2Source("yourindexfile.d2v")

[honza.v]

DVDPatcher + DGIndex worked, thanks for that advice!