Best way to deinterlace in GK? [Archive]

ernstblaauw

17th November 2003, 22:55

Hey, I've got a couple of video files, which are current interlaced. Those files were exported from Premiere 6.5 (I captured them using a Cinergy 400 TV-capture card).
What is the best way to deinterlace them:
1) When exporting from Premiere, select "Deinterlace"
2) When converting them to DivX (using 3-pass encoding), select in each pass "Deinterlace all frames"
3) When converting them to DivX (using 3-pass encoding), select in the last pass "Deinterlace all frames"
4) Somewhere in GK, select "Deinterlace" (I couldn't find this option, but I read in another thread this option is available. Can someone tell me where?)

jggimi

17th November 2003, 23:04

Welcome to the forum, ernstblaauw.

I can't tell you which deinterlacing method is best; nor, really, can anyone else, because the effect of your chosen methodology will be related to the specific content you have. But a number of deinterlacing tools are available from within Gknot, you'll see them in the "Field Operations" box in the "save .avs" window that opens when you press the "Save & Encode" button on the preview window. To see what that section of the window looks like, check out this section of Doom9's guide (http://www.doom9.org/gknot-divx5.htm) under Field Operations.

There are also options with some of these filters that you can set manually, by editing the .avs script prior to submitting your encoding job. Gknot makes it easy, just press the Edit button at the bottom of the Save .avs windows.

I do recommend using Gknot's AviSynth filters rather than the codec itself, or your capture tools. That's not because those deinterlacers aren't good ... but because you want to be able to test different deinterlacing algorithms, to see what works best for your needs, as content changes.

After selecting a deinterlacing filter, and optionally editing parameters, you can test the results by using the "Preview" button. This saves a temporary .avs script, and opens it in Windows Media Player. You will be able to see the impact of your choices before encoding.

{EDIT: Next time, try to avoid asking for a "best" answer, since one doesn't exist and the responses can cause arguments. It's a violation of Rule 12 (http://forum.doom9.org/forum-rules.htm). Thanks!}