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  1. Member
    Join Date: Apr 2013
    Location: Italy
    Search PM
    Hi

    please considering my source https://dl.dropboxusercontent.com/u/39871584/C0020.mxf

    open in virtualdub with the ffmpeg plugin 0.8.0.4

    General
    Complete name : D:\C0020.mxf
    Format : MXF
    Commercial name : XDCAM HD422
    Format profile : OP-1a
    Format settings : Closed / Complete
    File size : 263 MiB
    Duration : 36s 600ms
    Overall bit rate : 60.3 Mbps
    Encoded date : 2013-05-24 22:12:18.000
    Writing application : SONY Opt 1.22
    Writing library : SONY Opt 1.22

    Video
    ID : 2
    Format : MPEG Video
    Commercial name : XDCAM HD422
    Format version : Version 2
    Format profile : 4:2:2@High
    Format settings, BVOP : Yes
    Format settings, Matrix : Custom
    Format settings, GOP : M=3, N=12
    Format_Settings_Wrapping : Frame
    Duration : 36s 600ms
    Bit rate : 50.0 Mbps
    Width : 1 920 pixels
    Height : 1 080 pixels
    Display aspect ratio : 16:9
    Frame rate : 25.000 fps
    Standard : Component
    Color space : YUV
    Chroma subsampling : 4:2:2
    Bit depth : 8 bits
    Scan type : Interlaced
    Scan order : Top Field First
    Compression mode : Lossy
    Bits/(Pixel*Frame) : 0.965
    Stream size : 218 MiB (83%)
    Color primaries : BT.709
    Transfer characteristics : BT.709
    Matrix coefficients : BT.709


    I would like resize from 1920x1080 to 720x576
    What is the best procedure in virtualdub to resize?

    Click image for larger version

Name:	RESIZE.JPG
Views:	162
Size:	228.3 KB
ID:	24953

    I wonder: I have to set in "deinterlace" window BFF or TFF? or others?
    and in the "interlace" window, even or odd? progressive or interlace?

    Seems to me using bff result in major quality but is not clear

    thanks
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  2. Your source is TFF. The deinterlace filter should be set to TFF. You can easily verify this by watching the output pane after only deinterlacing. With the correct field order frames will appear in order, motion will be normal. With the wrong field order you will get jerky two steps forward, one step back motion as you step through frames.

    The reinterlaced can be either TFF (even) or BFF (odd) unless your output codec has limitations (DV for example should always be bff).
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  3. Member Cornucopia's Avatar
    Join Date: Oct 2001
    Location: Deep in the Heart of Texas
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    Make sure you are correctly changing your color standard from 709 to 601, also. And you realize that you will end up with an anamorphic image, right?

    Scott
    "When will the rhetorical questions end?!" - George Carlin
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  4. Member
    Join Date: Apr 2013
    Location: Italy
    Search PM
    Originally Posted by Cornucopia View Post
    Make sure you are correctly changing your color standard from 709 to 601, also. And you realize that you will end up with an anamorphic image, right?

    Scott
    I have set the ffmpeg virtualdub plugin in this:

    Name:  FF.JPG
Views: 47
Size:  18.3 KB
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