USB Video Class: DV Payload: SCR and PTS generation

Discussion in 'Windows Vista Drivers' started by Boris Mazic, Jan 28, 2005.

  1. Boris Mazic

    Boris Mazic Guest

    Can somebody explain me how to calculate SCR (Source Clock Reference)
    and PTS (Presentation Time Stamp) for each DV packet in a DV stream.

    The SCR is included in every DV packet, whereas the PTS shows up only
    once per frame (in the first packet of a frame). The 'USB Video
    Devices: DV Payload' document has a very short (and rather
    incomprehensible) section on the stream header. Are there any other
    documents that explain the SCR and PTS fields in USB video class
    devices in more detail?
    Any help would be very much appreciated.

    Boris Mazic, Jan 28, 2005
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