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16th February 2013, 01:54 | #1401 | Link |
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Crop before QTGMC can save processing time, especially if you're cropping out the letterbox. However because of YV12, the crop must be 4 pixels at a time.
So in your case, if you're only cropping 2 pixels, you'll have to put the crop after QTGMC. Alternatively, one can crop out most of the letterbox first, then crop the rest 2 pixels after QTGMC like this: crop(0, 72, 720, 432) QTGMC( Preset="Medium", FPSDivisor=2) crop(0, 2, 720, 428) Will speed up QTGMC considerably. |
16th February 2013, 02:05 | #1402 | Link | |
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Quote:
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16th February 2013, 02:23 | #1406 | Link | |
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Quote:
If I was just cropping just 2 pixels and put the line before the QTGMC line, what issues would it cause exactly? Would it solely just be impacting processing times, or would it have any other impact? |
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18th February 2013, 21:26 | #1411 | Link | |
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Quote:
http://forum.doom9.org/showthread.php?t=156028 Last edited by manono; 18th February 2013 at 21:29. |
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18th February 2013, 22:19 | #1414 | Link |
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Are you talking about processing speed or final video output fps?
If you feed QTGMC with PAL source you can't get 24p- it will be 50p by default. Use avisynth 2.6MT- you will find it on doom9. setmemorymax(768) - try 512 or 1800 if you use patched Vdub setmtmode(3,threads) avisource() or ffvideosource() etc setmtmode(2) qtgmc(preset="medium") selecteven() if you want 25p output instead of 50p Set threads to number of cores in your PC- for QTGMC you want i7 4 cores or better to have decent speed. If you have to low speed change preset to faster one. If you have crashing reduce number of threads, read about Large Address Aware patch and use patched Vdub or use mp_pipeline. If still not happy don't use QTGMC as it's not for your needs. |
19th February 2013, 00:45 | #1416 | Link |
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Get everything from the first post in this thread, the one to which I linked last time. And if your source is 25fps you'll get 50fps out of QTGMC, or 25 fps with SelectEven/Odd added afterwards. You'll never get 24fps. Unless maybe you're using QTGMC together with SRestore. Anyway, there are reasons why I asked for a sample. I'm always suspicious when PAL guys say their source is interlaced because so often it's only been encoded as interlaced and the content isn't interlaced at all. Or it's field-blended and has to be unblended rather than just deinterlaced. Or it's phase-shifted.
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19th February 2013, 08:23 | #1418 | Link |
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manono, I wonder if the processing speed is confused with the clip framerate...
laz1989: Do not try to use QTGMC as real-time deinterlacer (e.g. in ffdshow's AviSynth page or as MediaPlayer input). AviSynth scripts were never meant to be used as real-time video filter. Quality takes its time. Even if Q(=Quick)TGMC may be faster than its parent... |
19th February 2013, 11:49 | #1419 | Link |
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I will give it a try with kolak settings when i get back from work.
@Ligh:I don t use it at real-time deinterlacer. My mistake,sorry,with "veryfast" and "fast" i got 50 fps output http://i1284.photobucket.com/albums/a572/laz1989/test_zps6bb271ae.png ( one frame and MeGui scan) https://mega.co.nz/#!AExDRQTB!OsTlq3wn7ru7v2C5zarRIDxizc5pcv6TjCtXQ6EiPMw sample! So,anybody ? Last edited by laz1989; 19th February 2013 at 21:05. |
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