TDecimate(mode=1,hybrid=1,conCycle=1,chroma=false)īe sure to check “Apply pulldown” and set the back and ahead buffers to 0 and 12, respectively. This will overlay some basic data about the current frame on the video.Īnother example script that uses TIVTC for pulldown removal: (Do note that it's often not obvious how many frames an AviSynth filter will request back or ahead, and that this can even change based on the video it gets fed, so some tweaking may be required until you find the optimum values for a given script - the optimum can and will be different for different scripts.)Ī very simple AviSynth script to test if AviSynth is installed properly: If you want to disable buffering completely you can uncheck the “Buffer back/ahead” checkbox or set both ahead and back to zero. Turn on ffdshow's On-Screen Display (OSD) and check the “AviSynth info” OSD item to see the values that are currently needed, or click on the “Use Current” button to copy the neccessary values directly into the 2 number boxes. If you notice problems with a script it's most likely that the number of buffers has to be adjusted. If a frame it requests isn't buffered, it will get the nearest buffered frame instead, but at least in the case of IVTC or deinterlacing filters this will lead to jerkiness. As long as the AviSynth script only requests frames within that range it will work just fine. To work around this somewhat, the ffdshow AviSynth filter allows the user to specify a number of frames to buffer ahead and a number of frames to keep in a back-history. random, non-linear access), but of course this doesn't really work in ffdshow where the upstream DirectShow filters and/or the player application dictate the current frame that will get decoded and filtered. AviSynth is based on the assumption that every filter can request any frame it wants from the filter(s) preceeding it (i.e.
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