Mutiple camera sources into a single NV12 buffer/image

Autonomous Machines Jetson & Embedded Systems Jetson Xavier NX
1

Is thee a way to capture two camera sources into a single NV12 buffer.

The reson for asking is that many API’s are “buffer hungry” and my application will stitch the two camera sources into one image/stream.

I see two alternatives

  1. Two camera streams that are dewarped individually and thereafter sticthed int one stream
  2. Two camerasorces are mapped into a single image, that is dewarped and stitche in a single VPI Remap operation.

/Fredrik

3

Sorry, current implement not support this.

4

Hi,
For dewarping, please leverage VPI as suggested in

For stitching, you may use nvcompositor. Please refer to

5

Thanks DaneLLL,

For dewarping I see two alternatives:

  1. Dewarp each individual camera and then stitch them into one image

or

  1. Concatenate the two cameras into one NV12 image. Then use the VPI to Remap the image ( e.g. Dewarp and Stitch in one operation )

/Fredrik

6

What is the most efficient API/Library to concatenate two NV12 images into a single one?

9

Hi,
We would suggest use jetson_multimedia_api and call NvBufferComposite(). It is convenient to stitch frames from multiple sources.

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