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DM365 VPFE to capture YCbCr video

bo yu54559
Intellectual 370 points

Our system uses generic YCbCr 16-bit parallel digital input (422). We need to encode it as H264 stream. We do not need any image processing block within VPFE except resizer to get YUV420SP format for H264 encoder.

Could someone help me confirm if my understanding of the following path is correct ?

16-bit parallel data -> ipipeif (src1) -> isif -> sdram -> ipipeif(src2) -> ipipe(422) -> resizer (420sp)

Is there any additional path that can send 16-bit YCbCr422 data to resizer directly and skip isif and ipipe ?

 

Thanks.

Bo

 

  • 0
    TI__Mastermind 19985 points

    Hi,

    You are almost right. But you can save some DDR bandwidth by not using ISIF-->sdram path.

    You can use it as follows:

    16-bit parallel data -> ipipeif (src1) -> isif -> ipipe(422) -> resizer (420sp)

    If you have TI DVSDK software, you can refer to the capture driver usage code in chained mode. It does exactly that you need.

    Regards,

    Anshuman

    PS: Please mark this post as verified, if you think it has answered your question. Thanks.

  • 0 in reply to Anshuman Saxena
    Intellectual 410 points

    Hi, I am using TI DVSDK software, please tell me how to do " capture driver usage code in chained mode". Thanks!