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8168 evm composite input tvp5158

ShilpaByrichetty
Intellectual 985 points
Other Parts Discussed in Thread: TVP5158

Our main goal is to capture video simultaneously from two composite inputs,encode in H264 format and display both videos simultaneously on onchip HDMI output.

ezsdk used: 5.05.01.04
target evm used : 8168 evm
IO board used : Dm816x video security board

Questions:

1. Is the above goal achievable?

2. I see two capture examples in the current sdk capture_encode_a8host_debug(OMAX) and saLoopBack which captures video from component input on the expansion I/O daughter card. Can you please throw some light on difference between these two examples?

3. Can the examples mentioned above be modified to accept composite input using TVP5158 decoder?

4. I donot see tvp5158 decoder driver in the current SDK. Can anyone please provide me with details or a patch on how to modify the current ezsdk applications to capture video from SD inputs via tvp5158 ?

Thanks,
Shilpa.

  • 0
    TI__Mastermind 20245 points

    Inline,

    ShilpaByrichetty said:
    Is the above goal achievable?

    Yes, but it will require investment, currently EZSDK doesnt support TVP5158.

    ShilpaByrichetty said:
    2. I see two capture examples in the current sdk capture_encode_a8host_debug(OMAX) and saLoopBack which captures video from component input on the expansion I/O daughter card. Can you please throw some light on difference between these two examples?

    One is shown using Open max framework, while other is shown using the Linux V4L2 framework.

    ShilpaByrichetty said:
    Can the examples mentioned above be modified to accept composite input using TVP5158 decoder?

    V4L2 doesnt support multi channel capture so if you are planning to capture two composite using the same TVP5158 than you need to go with Openmax

    ShilpaByrichetty said:
    I donot see tvp5158 decoder driver in the current SDK. Can anyone please provide me with details or a patch on how to modify the current ezsdk applications to capture video from SD inputs via tvp5158 ?

    This will require HDVPSS source code which is not part of ESZSDK.

  • 0 in reply to HardikShah
    Intellectual 985 points

    Thankyou Hardik.

    The procedure to capture video from 2 composite inputs will be:

    1. Create tvp5158 sub device driver.
    2. Modify openMax framework example to use tvp5158 decoder and two composite inputs.

    If the above mentioned procedure is correct, can you please provide a brief explanation of how to do the above steps.Can you please provide with a link to download HDVPSS source code?

    Appreciate your help on this Hardik.

    Shilpa.

  • 0 in reply to ShilpaByrichetty
    TI__Guru* 80190 points

    Hello,

    The HDVPSS firmware source code is not delivered with the EZSDK, it has only HDVPSS binary.

    Best Regards,

    Margarita