Best Way to Convert and Deinterlace VRO

[Spiralagnus]

I have a set of VRO files to which I need to do two things:

1. Deinterlace them
2. Convert them to .avi

(not necessarily in that order). I've seen a lot of different options on this site and elsewhere, but I need some recommendations. What is the absolutely best way to deinterlace a VRO file and convert it to .avi? Processing time is not an issue. I just want the best de-interlaced image quality I can possibly get for a .avi file.

Thanks.

[jagabo]

If it's true interlaced material use DgIndex to build an index file and demux the audio. Use AviSynth (AVS file) to open the index file. Use QTGMC() to deinterlace. Open the AVS file in VirtualDub. Add the audio file. Encode with the codec of your choice (x264vfw?).

Mpeg2Source("filename.d2v", CPU=6) #deblock and dering
QTGMC() #deinterlace, double frame rate
SelectEven() #if you want 30 fps instead of 60 fps

If it's a film source IVTC instead:

Mpeg2Source("filename.d2v", CPU=2) #deblock Y channel
TFM() #deinterlace, 30 fps
TDecimate() #throw away duplicate frames to make 24 fps

[Spiralagnus]

If it's true interlaced material

The VROs are analog TV footage, taken from the DVD-ROMs used in my DVD recorder. Does this make them "true interlaced"? Apologies for my naivete.

[jagabo]

Live sporting events, and news are usually interlaced. Movies are usually telecined film. Where are you located? I assumed NTSC (USA, Canada, Japan) above. The procedure for film is a little different for PAL video. Cartoons and anime can add further complications.

[Spiralagnus]

Live sporting events and news are usually interlaced. Movies are usually telecined film. Where are you located? I assumed NTSC (USA, Canada, Japan) above. The procedure for film is a little different for PAL video. Cartoons and anime can add further complications.

I'm in the USA with NTSC. The VRO files contain PBS documentaries.

[jagabo]

Open a VRO file with VirtualDub. Add the Bob Doubler filter. Step through a motion sequence frame by frame with the arrow keys. If every field looks different you have interlaced video. If you see a pattern 2 identical frames followed by 3 identical frames, repeating over and over, you have telecined film.

[Spiralagnus]

Open a VRO file with VirtualDub. Add the Bob Doubler filter. Step through a motion sequence frame by frame with the arrow keys. If every field looks different you have interlaced video. If you see a pattern 2 identical frames followed by 3 identical frames, repeating over and over, you have telecined film.

I tried and got the error message

MPEG Import Filter: invalid pack at position 3: marker bit not set; possibly MPEG-2 stream

I did a little searching and came across the MPEG-2 mod to VirtualDub: http://fcchandler.home.comcast.net/~fcchandler/stable/. Unfortunately, this version doesn't have the Bob Doubler feature. Fortunately, the guy makes an MPEG2 plugin for VirtualDub. I downloaded the plugin and followed your instructions.

Every field looks different, so I guess I have interlaced video. I'm not familiar with AviSynth. I'm willing to learn, but just out of curiosity, why is this a better method than using, say, VirtualDub, Freemake or Avidemux to do the interlacing?

[jagabo]

The best deinterlacers are only available in AviSynth. The TempGaussMC and McBob variants. They're very slow though. Currently I think QTGMC is the best and it has presets to make it easier to use:

http://forum.doom9.org/showthread.php?t=156028

Some comparisons:

https://forum.videohelp.com/threads/292642-Deinterlacing-Tips-and-Good-news-that-i-foun...=1#post1784755

[poisondeathray]

Another older comparison (right click and "save as")

https://forum.videohelp.com/images/guides/p1934885/stockholma_0-520_q3_yadif_mvbobmod_t...mca4_tdtmm.avi