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AM5708: How to synchronize 2-input asynchronous video data

UNA
Mastermind 7980 points
Part Number: AM5708

Hi,

I would like to use the AM5708 to superimpose the two video inputs into a single video output.
The two video inputs are input to the AM5708 asynchronously, so how do I synchronize the process?
For example, is there a function to embed frame numbers etc. into each video input data?


Best Regards,
H.U

  • 0
    Mastermind 7980 points

    Can anyone advise on this case?
    I would like to know if the H/W has this capability or if it is something that is handled by the S/W.

    Best Regards,
    H.U

  • 0 in reply to UNA
    TI__Guru**** 477995 points

    Hi,

    Probably, you could use synchronize based on the the time at which frames are captured. Lets say, if both the capture are happening at 30fps, then a single  frame would be captured from both the inputs in 33ms, so you could use time at which frames are captured to sync them.

    Rgds,

    Brijesh

  • 0 in reply to Brijesh Jadav
    Mastermind 7980 points

    Hi Brijesh,

    Thank you for your reply.

    Could you be more specific about "synchronize based on the time at which the frames are captured"?
    Does this mean that I need to use the AM5708's internal timer or something similar to measure the capture timing?

    Best Regards,
    H.U

  • 0 in reply to UNA
    TI__Guru**** 477995 points

    Hi,

    Capture driver typically outputs timestamp at which buffer is captured. For example, if you are using Fvid2_Frame, frame.timestamp variable will provide you time at which this frame is captured. you could use it to develop logic to synchronize frames. 

    Regards,

    Brijesh