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Support for Avid Op-Atom Prores

2013-06-07
2013-06-07
  • Rens Dijkshoorn

    Rens Dijkshoorn - 2013-06-07

    Hi,

    Avid V6.0 MAC is update for prores support, this rewraps prores Quicktime mov to Avid OP-ATOM.

    Any plans to support this type of media, i'm not shure if there is a defenition for
    prores in OP1A MXF.

    Below is a SD sample

    macbook-2:NTR macbook$ mxf2raw -i /Data/Avid\ MediaFiles/MXF/1/1-London-Istanb51A891A2.2.mxf

    MXF File Information:

    Filename                   : /Data/Avid MediaFiles/MXF/1/1-London-Istanb51A891A2.2.mxf
    MXF version                : 1.1
    OP label                   : OP-Atom (1 source clip, >1 essence tracks)
    Wrapping type              : Clip
    Material package name      : 1-London-Istanbul Highlights - Milan-Apple ProRes 422 108050i PAL.mov
    Physical src start timecode: 01:00:00:00 (@ 25fps)
    Physical src package name  : 1-London-Istanbul Highlights - Milan-Apple ProRes 422 108050i PAL.mov
    Edit rate                  : 25/1
    Precharge                  : 0
    Duration                   : 751
    Rollout                    : 0
    Identifications            :
    Identification 0:
    Generation UID    : b6bcfcab.70ff7331.5115d921.69de11d2
    Company name      : Avid Technology, Inc.
    Product name      : Avid Media Composer 6.0.3.27470
    Product version   : 6.0.0.0.1 (released version)
    Version string    : Unknown version
    Product UID       : acfbf03a.4f42a231.d0b7c06e.cd3d4ad7
    Modification date : 2013-05-31 12:03:46.000
    Toolkit version   : 1.1.0.0.0 (unknown version)
    Platform          : Unix
    
    Track 0:
    
    Essence kind         : Picture
    Essence type         : picture essence
    Essence label        : 060e2b34.04010101.0e040201.02110300
    Material package uid : 060a2b34.01010101.01010f00.13000000.51a891a2.14690008.060e2b34.7f7f2a80
    Material track id    : 3
    Material track number: 1
    File package uid     : 060a2b34.01010101.01010f00.13000000.51a891a2.15b70008.060e2b34.7f7f2a80
    File track id        : 1
    File track number    : 0x15010601
    Edit rate            : 25/1
    Duration             : 751
    Lead filler offset   : 0
    Picture coding label : 060e2b34.04010101.0e040201.02110300
    Signal standard      : 0 (None)
    Frame layout         : 1 (Separate Fields)
    Stored dimensions    : 720x576
    Display dimensions   : 720x576
    Display x offset     : 0
    Display y offset     : 0
    Aspect ratio         : 4/3
    AFD                  : (not set)
    Component depth      : 10
    Horiz subsampling    : 2
    Vert subsampling     : 1
    Color siting         : 4 (Rec 601)
    

    I have a set of Avid imported files available when you want to take a closer look

    Regards Rens

     
  • Philip de Nier

    Philip de Nier - 2013-06-07

    I don't mind having a look, so please upload to my ftp.

    The essence container and picture coding labels in your mxf2raw output are Avid private ones (see the 0e04 in the 3rd group) and RP224 doesn't list any Pro-res labels. So, I wouldn't know what labels to use for OP-1A (can't reuse the Avid label because it only applies to clip wrapped content)

    Adding reading support, i.e. have Essence type show a string, should be straightforward if the labels and corresponding essence characterics are known.

    I guess the main issue for implementing write support is how much work is required to create an essence parser to parse the frames (for raw2bmx) and possibly extract frame information.

    Philip

     
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