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DM8168 VIP capture without tvp7002

puyol jiang
Intellectual 555 points
Other Parts Discussed in Thread: TVP7002

Hi,

I have a plan to capture video through FPGA, without tvp7002, that means we do not have a daught card. But I do not know how to capture the video from the external source, the question as follows:

 

1. Can I use the capture_encode examples for the capture program.

 

2. I capture 1080P video, the clock will be which frequency? 27MHz? 13.5MHz?

3. Now, In my capture, there is no data in the outfile, size always 0 byte.

Can someone give me some advise?

Thanks!

puyol.

 

  • 0
    TI__Mastermind 20245 points

    Hi,

    Answers inline,

    puyol jiang said:
    Can I use the capture_encode examples for the capture program.

    Yes, you can use it but it will require modifications as you have your own FPGA chip.

    puyol jiang said:
    I capture 1080P video, the clock will be which frequency? 27MHz? 13.5MHz?

    That really depends on what fps you want to driver 1080. 1080P60 requires 148.5MHz according to standards.

  • 0 in reply to HardikShah
    Intellectual 555 points

    Thanks for your reply, HardikShah, but I still have some question as follow:

    1 the clock is external clock? That means FPGA will give the clock signals(148.5MHz) for DM8168?

     2 I donnot use V4l2 to capture video, I use VFCC which in omx examples capture_encoder example for video capture, so we do not have some drivers for FPGA? FPGA give the standard BT656 video. I do not know how to modify the examples, can you give me some advises?

    Thanks!

    puyol