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Davinci Camera Density.

Marcus Hood
Prodigy 30 points


Hello,

I am trying to find out what the camera density is for the DM8147 / DM8148 Davinci processors.  How many cameras could I use with one chip.

The ultimate idea is to have and 8 cameras being recorded at the same time.  Preferably HD 1080p for at least some of the inputs and less resolution for the other cameras.

From what I can find it looks like one chip per camera at HD 1080p.  Just would like to confirm my understanding.

-Marcus

  • 0
    TI__Genius 13460 points

    DM814x has 2 video ports, each has A/B 8bit port.  Which means it allow 4 1080p30 camera input.

    But there is only 1 HDVICP on DM814x, so you can do 2 ch 1080p30 encoding.   For more channel encoding, please use DM8168, it has  3HDVICPs.

    There is also some PCI-E based mulit-channel Video Decoder which can help expand more camera interface.

     

  • 0
    TI__Guru**** 170625 points
    I want also to add that DM814x processor/device has 4 capture ports available (parallel port & csi2 port on ISS & VIP0, VIP1 ports on the HDVPSS). You may chose to use any combinations of these ports to capture the sensor data into memory and then the ISP operation can be done in Memory 2-Memory mode. Parallel port that can capture raw sensor data. VIP ports can also be configured in bypass mode in which they will capture the RAW data available at the port and dump in DDR. This mode can be used for doing raw capture from the sensors.

    See also the below e2e threads:
    e2e.ti.com/.../137058
    e2e.ti.com/.../120477
    e2e.ti.com/.../197358

    BR
    Pavel
  • 0 in reply to Eason Wang
    Prodigy 30 points

    Thank you for your help.  I have decided to go with the DM8168 as it has the number a channels we need if we want to capture more than one HD feed.

    You help is greatly appreciated.