imx6QP can support 6 D1 video stream?

[leonlin1]

Hi, All

         We know i.MX6 series VPU can suppoort 6 D1 encorder but we don't know i.MX6QP's CPU and IPU can support 6 D1 preview? And i.MX6QP can support 6 D1 preview and encoder video stream simultaneously? Is there any information about this or how to compute i.MX6's bandwidth is enough or not for this? Thanks~

       (PS : We plan to use 4 MIPI camera + 2 USB camera  do the 6 D1 preview + encoder simultaneously.)

[joanxie]

for hardware, imx6 IPU and VPU can support this task, IPU is 240Mhz and VPU is 266Mhz as default, but I don't think mx6 can support 6 camera in the same time, for how to support 4 mipi camera, you can refer to the document as below:

<https://community.nxp.com/docs/DOC-328548 >.

[leonlin1]

Hi Joan,

           Yes, we know i.MX6 only can support 4 MIPI cameras. And we already built a 4 MIPI cameras + 2 USB cameras test environment, the followings are our test results. We found that we can't do 6*D1 preview+encorder simultaneously , but we can do 5*D1 + 1*QVGA preview+encorder in the same time. It could be hardware bandwidth or limitation issue or did we make something wrong? Thanks~

bus                   resolution                                     preview                                 recording

4mipi               640x480*4                                     ok                                          ok

4mipi+1usb     640x480*5                                     ok                                          ok           

4mipi+2usb     640x480*6                                     only 5 cameras work             only 5 cameras work

4mipi+2usb     640x480*5+320x240*1                 ok                                           ok