Dual video stream capture and compression using iMX6 Dual/Quad

[lucianoscaccaba]

We need to compress two video streams in parallel (H264) with the iMX6Dual/Qauad.

The video stream should be 8 bits parallel YCrCb (4:2:2) on the CSI4 to CSI19 lanes.

We didn't find information on how to connect the two parallel video stream to the CSI port: one strem connected to CS4-CS11  and the other one connected to CSI12-CSI19 ?

Then, the compression performances of the iMX6Dual/Quad are enough for two simultaneous video stream at D1 resolution (729x576, 50 Hz) and H264 coding ?

The compressed streams shall then be transmitted through the Etehrnet port.

Thanks to everyone takes care of this post

[lucianoscaccaba]

Ok, perfect.

Thank you again Igor.

[igorpadykov · Accepted solution]

Hi LUCIANO

parallel CSI port can receive data only from one sensor.

If this sensor data contains two video streams, then they should be

parsed in software. For two simultaneous video streams capabilities

one can look at presentation slide 6 (Encode: 6xD1@30fps),

enough for two simultaneous video stream at D1@50 Hz:

Q&A: MX6 VPU H.264 Dual Stream Encode Limits

Best regards

igor

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[lucianoscaccaba]

Thank you Igor for the answer, but I know that the iMX6Dual/Quad have two IPU and each one can manage one parallel Sensor input.

This is right ?

thank you in advance

[igorpadykov]

yes, right.

~igor