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AM3517 Video Capture Driver

Nhan Pham
Prodigy 170 points
Other Parts Discussed in Thread: AM3517, TVP5146, TFP501, TFP401A

HI,

The current video capture driver doesn't support RGB input signal on the AM3517 application board. I wonder when will be one available for this input. Thanks

Nhan Pham

  • 0
    TI__Intellectual 1665 points

    Hello Nhan,

    By RGB i/p do you mean component RGB interface to TVP514x or camera sensor? I checked with the PSP team and they said they are currently not exploring either of the options. For component RGB the framework exists, you might need to add support to the existing driver.

    Thank you.

    Regards,

    Punya

  • 0 in reply to Punya Prakash
    Prodigy 170 points

    Hi Punya,

    I meant component RGB interface to TVP514x. The driver that we  downloaded only supports S-video and composite video inputs, but not component RGB. We done some testing on the board to see the capabilities of this processor, but have not modify any driver yet. Our application requires capturing a video input (S-video, component RGB, DVI, HDMI...), process, overlay some other OpenGL ES graphics on top of it, so that is the reason we are looking into this processor. Does TI has any IC can convert DVI video format to 10-bit ITU format that you know of? Thanks a lot your response.

    Nhan Pham

  • 0 in reply to Nhan Pham
    TI__Mastermind 43875 points

    Nhan,

    Enabling the component input on the TVP5146 is a simple case of changing a single I2C accessible register in the TVP5146, assuming you want to capture 480i video.

    If you want to capture 480p video then you will additionally need to modify the capture driver accordingly. This should not be too big a change though since I believe there is already a 640x480 driver which could be used as a basis, coupled with the 480i capture driver.

     

    TI does not have any DVI receivers which can output ITU656 since DVI was originally designed to be RGB color space. We do, however, have the TFP401A (no HDCP support) and the TFP501 (includes HDCP support, but you need to obtain keys). Both these devices output RGB.

    There are a number of devices from Silicon Image, Analog Devices, Philips etc... which can receive RGB DVI/HDMI and color space convert to output ITU656.

    BR,

    Steve