Description

This sample app demonstrates interop between Channel (nvsci) and dwSensorCamera modules so that camera frames can be shared cross process or cross chip to downstream consumer(s).

The producer loads the configuration rig file, transmits images from live cameras to the consumer over Channel. The consumer compresses the incoming image data into h264 through the dwFrameCapture module.

This sample app can be used as a reference for connecting together the various APIs to set up optimal memory allocation and hardware synchronization for low latency.

Running the sample

Producer:

./sample_cgf_camera_interprocess --role=producer --rig=path/to/camera.json  --prod-stream-names=[nvsciipc endpoint names] --prod-reaches=[reaches of each endpoint]

Consumer:

./sample_cgf_camera_interprocess --role=consumer --rig=path/to/camera.json  --cons-stream-names=[nvsciipc endpoint names] --cons-reaches=[reaches of each endpoint]

Shared Parameters:

--role:
    consumer or producer [default: consumer]

--sync-mode=[p2c|c2p|both|none]
    Must match between producer and all consumers
    Default value: p2c

--frames:
    Must match between producer and all consumers
    Default value: 300

Producer Parameters:

--rig:
    rig path

--prod-reaches=[STR]
    Colon-separated list of producer reaches (process|chip)
    For NVSCI mode only
    Default value: ""

--prod-stream-names=[STR]
    colon-separated list of producer nvsciipc endpoints
    Default value: ""

Consumer Parameters:

--cons-reaches=[STR]
    Colon-separated list of consumer reaches (process|chip)
    Default value: ""

--cons-stream-names=[STR]
    colon-separated list of consumer nvsciipc endpoints
    For NVSCI mode only
    Default value: ""

--capture:
    compress file name [default:capture.h264] [Consumer only]

--bitrate:
    bitrate value [default:8000000] [Consumer only]

Known Restrictions

Producer rig must contain only one camera.

Sync mode c2p, both not supported.

Examples

Single producer single consumer cross-process

./sample_cgf_camera_interprocess --role=producer --rig=path/to/rig.json> --prod-stream-names=nvscisync_a_0 --prod-reaches=process
./sample_cgf_camera_interprocess --role=consumer --cons-stream-names=nvscisync_a_1 --cons-reaches=process

Single producer single consumer cross-chip

./sample_cgf_camera_interprocess --role=producer --rig=path/to/rig.json> --prod-stream-names=nvscic2c_pcie_s0_c6_1 --prod-reaches=chip
./sample_cgf_camera_interprocess --role=consumer --cons-stream-names=nvscic2c_pcie_s0_c5_1 --cons-reaches=chip

Table of Contents

Description

Running the sample

Known Restrictions

Examples