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  1. Member
    Join Date
    May 2009
    Location
    United States
    Search Comp PM
    I suppose it's a good thing I tested my script to see if it was generating what I thought it was. But now I'm in a fairly large hurry (only so much time available to render the video) and can't spend the several hours it'd probably take to figure out what I did wrong.

    Got a video that's 1080p @ 59.94fps. Need to render it as Bluray-compliant 1080i @ 29.97fps, top field first of course. I was using this:

    DirectShowSource("video.avi")
    AssumeFrameBased
    ConvertToYV12()
    # Needed for x264 compliance
    SeparateFields
    SelectEvery(4, 0,3)
    Weave()

    It was generating 1080i video, sure enough. But since I am paranoid, I decided to test things a bit. First I added VirtualDub's deinterlacing filter so I could see the two fields side-by-side. Something was immediately fishy as it looked like the field order was backwards. To be certain, I rendered a small test clip and then used good old QTGMC:

    AviSource("small_int_test_clip1.avi")
    AssumeTFF
    ConvertToYV12(interlaced=true)
    QTGMC(preset="Fast", sharpness=0.5)

    Sure enough, the deinterlaced video exhibited field order reversal. And since I pulled the 60p->60i code from the net and every resource I've located suggests it should be correct, I really don't know how to fix it. Blah. ;p
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  2. you forgot to use assumetff in the first script , so avisynth automatically assumes bff, unless otherwise specified

    #60p video
    AssumeTFF()
    SeparateFields()
    SelectEvery(4, 0, 3)
    Weave()


    If you have an AVI video, use AVISource instead of Directshowsource . Directshow can cause many issues, isn't necessarily frame accurate, and inconsistent
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  3. Member
    Join Date
    May 2009
    Location
    United States
    Search Comp PM
    Originally Posted by poisondeathray View Post
    If you have an AVI video, use AVISource instead of Directshowsource . Directshow can cause many issues, isn't necessarily frame accurate, and inconsistent
    Ah yes, that. I was assuming that Avisource couldn't handle v210 from PPro (as it couldn't in the past). I suppose I can thank Drastic Codecs for its newfound compatibility.
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  4. or ffms2
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