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NVIDIA DRIVE OS Linux SDK API Reference5.1.9.0 Release |
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NVIDIA DRIVE OS Linux SDK API Reference5.1.9.0 Release |
Creates image capture pipelines for NvROS on the NVIDIA DRIVE™ AGX platform through AR0231 imaging sensors.
This class internally uses NvMediaIPPComponent to set up the image capture pipeline.
Definition at line 93 of file NvRosImgPipeline.h.
Public Member Functions | |
| NvRosErr | SetCaptureConfig (const char *cfgFilePath, const unsigned int camGrp, const unsigned int cameras, const bool yuv) |
| Sets the configuration parameters for an image capture pipeline and must be called first after the NvRosImgPipeline class is instantiated. More... | |
| NvRosErr | InitPipeline () |
| Initializes the NvRosImgPipeline which internally initializes the NvMediaIPPPipeline. More... | |
| NvRosErr | StartPipeline () |
| Starts the NvRosImgPipeline and must be called after SetCaptureConfig and InitPipeline. More... | |
| NvRosErr | StopPipeline () |
| Stops the NvRosImgPipeline put into execution by StartPipeline. More... | |
| NvRosErr | ShutdownPipeline () |
| Shuts down the NvRosImgPipeline and uninitializes all settings prior to starting the pipeline. More... | |
| NvRosErr nvros::NvRosImgPipeline::InitPipeline | ( | ) |
Initializes the NvRosImgPipeline which internally initializes the NvMediaIPPPipeline.
This mainly consists of initializing capture sensor parameters and ISP.
| NvRosErr nvros::NvRosImgPipeline::SetCaptureConfig | ( | const char * | cfgFilePath, |
| const unsigned int | camGrp, | ||
| const unsigned int | cameras, | ||
| const bool | yuv | ||
| ) |
Sets the configuration parameters for an image capture pipeline and must be called first after the NvRosImgPipeline class is instantiated.
| cfgFilePath | Fully qualified path of the configuration file. Camera capture configuration is specific to the platform. Currently, NvRosImgPipeline is supported only on NVIDIA DRIVE AGX. The configuration file is located in the target file system at $NVIDIA_HOME/drive-t186ref-linux/samples/nvmedia/ipp_raw/ddpx-a.conf for the Tegra X1 module on DRIVE AGX and $NVIDIA_HOME/drive-t186ref-linux/samples/nvmedia/ipp_raw/ddpx-b.conf for the Tegra X2 module on DRIVE AGX. |
| camGrp | Image capture is intended for this camera group ID. NVIDIA DRIVE AGX has four (4) camera groups. A valid value for this parameter is [0,3]. |
| cameras | Image capture is intended for these number of cameras. Each camera group on NVIDIA DRIVE AGX consists of four (4) cameras. A valid value for this parameter is [1,4]. |
| yuv | Color space of the captured frame. If true, images captured would be of YUV 420 Semi Planer color space. Default is RGBA. |
| NvRosErr nvros::NvRosImgPipeline::ShutdownPipeline | ( | ) |
Shuts down the NvRosImgPipeline and uninitializes all settings prior to starting the pipeline.
Ideally, the function is called at the end of the image capture application.
| NvRosErr nvros::NvRosImgPipeline::StartPipeline | ( | ) |
Starts the NvRosImgPipeline and must be called after SetCaptureConfig and InitPipeline.
To avoid undefined behavior, follow the correct API sequence.
| NvRosErr nvros::NvRosImgPipeline::StopPipeline | ( | ) |
Stops the NvRosImgPipeline put into execution by StartPipeline.
This function suspends the pipeline and does not perform a tear down. The pipeline can be restarted by calling StartPipeline. Once StartPipeline is successful, the image stream is available on an EGLStream whose socket path is identified as below: /tmp/nvros_cam_X_Y where X is an identifier for the camera group and Y is an identifier for the camera number in Xth camera group. For example, if SetCaptureConfig is called with camGrp : 0 and cameras : 1, the image stream is available on /tmp/nvros_cam_0_0. If SetCaptureConfig is called with camGrp: 1 and cameras : 4, four (4) image streams are available on: /tmp/nvros_cam_1_0, /tmp/nvros_cam_1_1, /tmp/nvros_cam_1_2, and /tmp/nvros_cam_1_3. You must connect to the EGLStreams to process the image streams.
