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Canon HV20 Pulldown Removal for CS4 (Repost)
October 03, 2009
Found this info today in the infinitely useful HV20.com forums at: http://www.hv20.com/showthread.php?t=13421
I thought it was useful enough to repost it.
It includes a script for automatically guessing pulldown for a group of Premiere captured HV20 footage in AE:
function ReverseTelecine() {
var sel = app.project.selection;
if (sel.length == 0) {
alert("Please select clips in the Project window.");
return;
}
for (i = 0; i < sel.length; i++) {
if (sel[i] instanceof FootageItem) {
sel[i].mainSource.guessPulldown(PulldownMethod.PULLDOWN_3_2);
}
}
}
ReverseTelecine();
To use the script, just copy-and-paste it into TextEdit, then save it as .jsx file (eg, ReverseTelecine.jsx). You should save it to your scripts directory. (On OS X, that’s /Applications/Adobe After Effects CS3/Scripts). Then you can run the script from the pull-down menus in AE by selecting File/Scripts/ReverseTelecine.jsx.
Workflow:
1. Capture your clips to .mpeg files using Premiere. (This is fine for me, as I almost never want to capture all the footage on a tape. I usually have a log sheet telling me which clips I’ll actually need, so I have to set up the capture manually anyway. YMMV.)
2. In AE, bulk import all those .mpeg files to the Project window. They should all be selected after they import.
3. Run the above script.
4. Drag all the clips to the “Create a New Composition” icon in the Project window.
5. In the “New Composition from Selection” dialog that appears, make sure “Multiple Compositions” and “Add to Render Queue” are checked, then hit OK.
6. Open the Render Queue tab and hit the Render button.
7. Have a beer.
8. Edit the rendered clips in Premiere.
For this to be effective, you have to set up After Effects so that its default render settings are what you want (eg, Prores 422). So you might want to render one clip manually before doing the above, so the render defaults and target directory are correct.
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