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Question about the FrameQ

Eric Mao
Genius 4330 points


Hi all,

      I have a openmax demo program,   it use the syslink-frameQ to pass the capture picture from the VFCC component to the DEIM/DEIH component.    The VFCC  component is the frameQ wirter, and the DEIM/DEIH component is the frameQ reader.   I want to know when the writer put a frame into the Frame Queue, how the reader know there is a picture available in the Frame Queue, and how to configure the  notification between the writer and the reader?

     Any detail document introduce the FrameQ?  Now I got a SysLink_02.00.00.67_alpha2_UserGuide.pdf

  • 0
    Genius 4330 points

    Any body know how to use the frameQ, please reply.  Thanks

  • 0 in reply to Eric Mao
    TI__Intellectual 1085 points

    Eric Mao,

    Can you please let me know the ezsdk version that you trying with?

    There are 2 ways the omx components work. In method1, notification based; which is enabled by using OMX_TI_IndexParamCompPortNotifyType. In method 2, notification is disabled and the component periodically wakes-up and does the checks the port for buffers. 2nd method is mostly used for VS (multi-channel) kind of applications where as method 1 is used for apps having low latency requirements.

    regards

    Tarakesh.

  • 0 in reply to tarakesh
    Genius 4330 points

    Tarakesh:

         I get the omx project the syslink from a DVD disc not  from a ezsdk instal file.  I think my omx project use the method 2.  So can you explain about the method2 detaily.

      How to configure FrameQ work in method2?