Using filters while capturing

[lime-]

Hi

What I want to do is using deinterlace filters while I'm capturing, so I dont need to confront the "problem" later, while I'm watching. Currently I'm using DVBViewer with a recording service, which just records the raw mpeg2 stream. I have a Hauppauge WinTV-NOVA-TD Stick TV tuner, and it uses BDA drivers. I don't know if the tuner can be used with VFW or WDM drivers.

Which software(s) can solve this for me?

[guns1inger]

The issue is that any good quality deinterlacing filter is simply too slow to allow for realtime use. The filters that are fast enough - simply field abandonment or basic blending - don't produce very good results.

What are you intending to do with the footage ?

If you are watching on the PC, you are better off using a player that can deinterlace on playback. The results will be no worse than using a poor deinterlacer while capturing, but at least no damage has been done to the footage. This means you can re-encode at a later date using a decent deinterlacer if necessary.

If you are going to author for TV playback, deinterlacing is not recommended at all.

[lime-]

How come there be such a difference when using deinterlace while capturing against deinterlacing on playback?

[guns1inger]

There isn't. Neither are all that good.

[lime-]

Well, I'm satisfied with the results ffdshow is giving me, using deinterlace on playback, so what are my options?

[guns1inger]

The best option is to take the stream as is, and deinterlace on playback. This makes capture very easy, and also saves you having to re-encode the video during capture. Between deinterlacing and re-encoding you risk much lower quality than you are getting now.

If you must filter on the fly then about the only option I can think of is virtualdub. However I don't know whether or not it will work with your card. I know it won't see my digital tuner at all, and crashes on anything that uses DirectShow().

[SatStorm]

Realtime de-interlace doesn't exist in a consumer level.

There is a work around: Grab the stream and store it to a USB HDD. Then, use a popcorn hour or any other nmt solution, to upscale it and playback it at 576p or 720p. Then, using the component connections, re-capture it with a Hauppauge HD PVR TV Tunner.
Is it worth it? Probably no.

So, better leave it that way, "as is". Your PC gonna do an excellent job on de-interlace it realtime!