Latest post Thu, Oct 29 2009 8:28 PM by Alexander Dijkgraaf. 3 replies.
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  • Thu, Oct 29 2009 4:20 PM

    DV 50 and IMX conversions in same color space for quality

    Hi,

     

    I'm wondering what color space DV50 is operating in? 4:2:0 4:2:2. It is not specified in Avid. What i want is to transcode IMX30 to DV50 so finalcut and avid can work with same source material. But I want to stay in the same color space for quality, i believe the bitrate is oke.

    Does anyone know the specs of colorspace of DV50?

    I'm depending on a capture fascility wich is on the network, making a quicktime reference in Apple's IMX30. Wich I can import in Avid, but i get a completely white video with audio. Even after making quicktime source included. The file opens in quicktime and identifies as Apple IMX30. I still get a white picture.

    I don't have power codec PE for apple so i can't create the source material in IMX50.

    What i want is a intermediate file generated from XDCAM wich is the same quality and idealy same bitrate, but accessible from avid en final cut. What do you advise or anyone with the same problem there?

     

     

     

     

     

     

     

  • Thu, Oct 29 2009 8:00 PM In reply to

    Re: DV 50 and IMX conversions in same color space for quality

    DV50 is a 4:2:2 based video format.

     

    DV50 and DV25 are formats supported by both NLE.

     

    MC 3.1.3, Intel i7 920, Vista 64 bit, Nvidia GTX 275, 6 GB of RAM, X-Fi Titanium Professional, MSI X58 SLI Platinum. [view my complete system specs]
  • Thu, Oct 29 2009 8:09 PM In reply to

    • Feralfons
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    • Joined on Thu, Oct 13 2005
    • Galicia, spain
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    Re: DV 50 and IMX conversions in same color space for quality

    Hi,

    DVCPRO50 is only 4:2:2.

    IMX30 and IMX50 are TransportStream MPEG formats, and Avid can not import directly, or as a QT reference.

    If you want to export from FCP, and going to work in AVID DVCPRO50 format, you AvidDV QT codec, which has the option 50. That's the most logical solution.

    HP xw8200, 4GB Ram, Dual Xeon 3.4, Quadro FX 1500, Avid VideoRaid, MediaComposer and Mojo SDI, Panasonic VCR AJ-SD93.// DELL T7400,QuadXeon 2.5, 4GB Ram... [view my complete system specs]

    Fernando Alfonsin

  • Thu, Oct 29 2009 8:28 PM In reply to

    Re: DV 50 and IMX conversions in same color space for quality

     

    Is DV50 the same as DVCPRO50?.

    IMX is using: The first D-10 standard, SMPTE 356M, describes an MPEG-2 4:2:2P@ML data stream employing Intra-frame (I-frame) compressed video encoding. SMPTE 356M provides for recording at 30, 40 and 50 Mb/s for the highest quality Standard Definition video performance and multi-generation editing.

    AND DVCPRO50:Sampling Ratio 4:2:2; max. Data Rate= 50Mbps; Bits Per Sample= 8; Compression= 3.3:1*)

    So I'm going to propose to the capture facility to create AVID DV50 Instead of Apple IMX30, so we both finalcut and avid can work on the same source, but on the avid it's pleasure and on final cut its hell.

    sincere, Alex.

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