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1080P@50Hz component capture USING OMX Capture_Encode

David Hill100919
Intellectual 310 points
Other Parts Discussed in Thread: TVP7002

Hi,

How should I modify the capture_encode example source codes to capture 1080P50 from component ? It seems that the capture_encode demo supports only 720p60 and 1080p60 component input. 


Regards,

Jiaxin Peng.


  • 0
    TI__Mastermind 20245 points

    Hi,

    You are correct 720P50 and 1080P50 is not supported as of now. There are two options for supporting this.

    1. Change the HDVPSS firmware to support this. Change mainly involves updating the TVP7002 ctrl component

    2. Write userspace TVP7002 component in Linux which can be used to support 720P50 and 1080P50, change OMX application now to call the TVP7002 OMX ctrl component and call userspace component instead. Reference for developing userspace component can be taken from TVP7002 driver available under Linux and TVP7002 datasheet@ http://www.ti.com/lit/ds/symlink/tvp7002.pdf

  • 0 in reply to HardikShah
    Intellectual 310 points

    Hi,

    Thanks for your reply.

    What is userspace TVP7002 component?

    Do you mean that I should change the source codes of TVP7002.c? It seems that tvp7002.ko is only used by V4L2 not by OMX.

    Moreover, what is the HDVPSS firmare? Is vpss.ko?


    Regards,

    Jiaxin Peng.