Detailed Description

Adapts test frame and ROI batches to the low-level tracker API.

Definition at line 33 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

Collaboration diagram for DsLowLevelTracker:

[legend]

Public Member Functions
	DsLowLevelTracker ()
	Initialize empty low-level tracker input and output storage. More...

	~DsLowLevelTracker ()
	Deinitialize the tracker context and release allocated metadata. More...

bool	isInitialized ()
	Report whether the low-level tracker is initialized. More...

void	initialize (const uint32_t gpuId, const int maxVideoStreams, const int numVideoStreams, const int maxObjectsPerFrame, const int numTransforms, const uint maxWidth, const uint maxHeight, const uint maxPitch, const NvBufSurfaceColorFormat srcImgColorFormat, std::string lowLevelTrackerConfigFilePath="", const int debugVerboseLevel=0)
	Allocate tracker metadata and initialize a low-level tracking context. More...

const NvMOTTrackedObjBatch &	update (const FrameBatch &framesInBatch, const int numTransforms, RoiBatch rois=RoiBatch(), const bool isDetectionDone=false, const uint32_t frameBatchNo=0)
	Process a batch of frames and return the current tracker output. More...

const void	removeStream (const NvMOTStreamId videoStreamID)
	Remove a stream from the low-level tracker context. More...

const std::map< NvMOTStreamId, NvMOTFrame * >	getMotInputParams ()
	Return input frame metadata keyed by video stream ID. More...

	DsLowLevelTracker ()
	Initialize empty low-level tracker input and output storage. More...

	~DsLowLevelTracker ()
	Deinitialize the tracker context and release allocated metadata. More...

bool	isInitialized ()
	Report whether the low-level tracker is initialized. More...

void	initialize (const uint32_t gpuId, const int maxVideoStreams, const int numVideoStreams, const int maxObjectsPerFrame, const int numTransforms, const uint maxWidth, const uint maxHeight, const uint maxPitch, const NvBufSurfaceColorFormat srcImgColorFormat, std::string lowLevelTrackerConfigFilePath="", const int debugVerboseLevel=0)
	Allocate tracker metadata and initialize a low-level tracking context. More...

const NvMOTTrackedObjBatch &	update (const FrameBatch &framesInBatch, const int numTransforms, RoiBatch rois=RoiBatch(), const bool isDetectionDone=false, const uint32_t frameBatchNo=0)
	Process a batch of frames and return the current tracker output. More...

const void	removeStream (const NvMOTStreamId videoStreamID)
	Remove a stream from the low-level tracker context. More...

const std::map< NvMOTStreamId, NvMOTFrame * >	getMotInputParams ()
	Return input frame metadata keyed by video stream ID. More...

Protected Member Functions
void	initializeLowLeveTracker (uint maxWidth, uint maxHeight, uint maxPitch, NvBufSurfaceColorFormat colorFormat, uint maxStream, uint numTransforms, std::string lowLevelTrackerConfigFilePath="")
	Recreate the low-level tracker context for configured transforms and streams. More...

void	allocateMotOutputData (const int maxVideoStreams, const int maxObjectsPerFrame)
	Allocate current-frame tracker output storage. More...

void	deAllocateMotOutputData ()
	Release current-frame tracker output storage. More...

void	allocateMotInputData (const int numTransforms, const int numVideoStreams, const int maxObjectsPerFrame)
	Allocate low-level tracker input storage. More...

void	deAllocateMotInputData ()
	Release low-level tracker input storage. More...

bool	generateMotInputParams (const FrameBatch &framesInBatch, const int numTransforms, RoiBatch &rois, const bool isDetectionDone, const uint32_t frameBatchNo=0)
	Populate low-level tracker input metadata from frame and ROI batches. More...

void	initializeLowLeveTracker (uint maxWidth, uint maxHeight, uint maxPitch, NvBufSurfaceColorFormat colorFormat, uint maxStream, uint numTransforms, std::string lowLevelTrackerConfigFilePath="")
	Recreate the low-level tracker context for configured transforms and streams. More...

void	allocateMotOutputData (const int maxVideoStreams, const int maxObjectsPerFrame)
	Allocate current-frame tracker output storage. More...

void	deAllocateMotOutputData ()
	Release current-frame tracker output storage. More...

void	allocateMotInputData (const int numTransforms, const int numVideoStreams, const int maxObjectsPerFrame)
	Allocate low-level tracker input storage. More...

void	deAllocateMotInputData ()
	Release low-level tracker input storage. More...

bool	generateMotInputParams (const FrameBatch &framesInBatch, const int numTransforms, RoiBatch &rois, const bool isDetectionDone, const uint32_t frameBatchNo=0)
	Populate low-level tracker input metadata from frame and ROI batches. More...

Protected Attributes
NvMOTTrackedObjBatch	m_motOutputObjectsMeta
	Current-frame output from the tracker. More...

NvMOTProcessParams	m_motInputParams
	Input batch submitted to the tracker. More...

NvMOTMiscConfig	m_motMiscConfig
	Miscellaneous tracker configuration. More...

NvMOTContext *	mp_MotCtx
	Low-level tracker context. More...

NvMOTConfigResponse	m_motConfigResponse
	Response to the tracker configuration request. More...

NvMOTCompute	m_computeType
	Requested tracker compute target. More...

NvBufSurfaceColorFormat	m_srcImgColorFormat
	Source image color format. More...

int	m_debugVerboseLevel
	Debug verbosity level. More...

bool	m_isIntialized
	Indicates whether the low-level tracker is initialized. More...

bool	m_useBatchNumForFrameId = false
	Selects frame-batch numbers instead of per-stream frame numbers. More...

Constructor & Destructor Documentation

◆ DsLowLevelTracker() [1/2]

DsLowLevelTracker::DsLowLevelTracker ( )

inline

Initialize empty low-level tracker input and output storage.

Reset the MOT context.

Definition at line 37 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References _NvMOTProcessParams::frameList, _NvMOTTrackedObjBatch::list, m_computeType, m_isIntialized, m_motInputParams, m_motOutputObjectsMeta, mp_MotCtx, and NVMOTCOMP_ANY.

◆ ~DsLowLevelTracker() [1/2]

DsLowLevelTracker::~DsLowLevelTracker ( )

inline

Deinitialize the tracker context and release allocated metadata.

Deinitialize NvMOT.

De-allocate the output to the tracker.

De-allocate the input to the tracker.

Definition at line 50 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References deAllocateMotInputData(), deAllocateMotOutputData(), mp_MotCtx, and NvMOT_DeInit().

◆ DsLowLevelTracker() [2/2]

DsLowLevelTracker::DsLowLevelTracker ( )

inline

Initialize empty low-level tracker input and output storage.

Reset the MOT context.

Definition at line 37 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References _NvMOTProcessParams::frameList, _NvMOTTrackedObjBatch::list, m_computeType, m_isIntialized, m_motInputParams, m_motOutputObjectsMeta, mp_MotCtx, and NVMOTCOMP_ANY.

◆ ~DsLowLevelTracker() [2/2]

DsLowLevelTracker::~DsLowLevelTracker ( )

inline

Deinitialize the tracker context and release allocated metadata.

Deinitialize NvMOT.

De-allocate the output to the tracker.

De-allocate the input to the tracker.

Definition at line 50 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References deAllocateMotInputData(), deAllocateMotOutputData(), mp_MotCtx, and NvMOT_DeInit().

Member Function Documentation

◆ allocateMotInputData() [1/2]

void DsLowLevelTracker::allocateMotInputData	(	const int	numTransforms,
		const int	numVideoStreams,
		const int	maxObjectsPerFrame
	)

inlineprotected

Allocate low-level tracker input storage.

Parameters

[in]	numTransforms	Number of input transforms per frame.
[in]	numVideoStreams	Number of video streams.
[in]	maxObjectsPerFrame	Maximum number of objects per frame.

Definition at line 287 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References _NvMOTFrame::bufferList, deAllocateMotInputData(), _NvMOTFrame::doTracking, _NvMOTProcessParams::frameList, _NvMOTFrame::frameNum, _NvMOTObjToTrackList::list, m_motInputParams, _NvMOTObjToTrackList::numAllocated, _NvMOTFrame::numBuffers, _NvMOTObjToTrackList::numFilled, _NvMOTProcessParams::numFrames, _NvMOTFrame::objectsIn, _NvMOTFrame::reset, _NvMOTFrame::streamID, and _NvMOTFrame::timeMeta.

Referenced by initialize().

◆ allocateMotInputData() [2/2]

void DsLowLevelTracker::allocateMotInputData	(	const int	numTransforms,
		const int	numVideoStreams,
		const int	maxObjectsPerFrame
	)

inlineprotected

Allocate low-level tracker input storage.

Parameters

[in]	numTransforms	Number of input transforms per frame.
[in]	numVideoStreams	Number of video streams.
[in]	maxObjectsPerFrame	Maximum number of objects per frame.

Definition at line 287 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References _NvMOTFrame::bufferList, deAllocateMotInputData(), _NvMOTFrame::doTracking, _NvMOTProcessParams::frameList, _NvMOTFrame::frameNum, _NvMOTObjToTrackList::list, m_motInputParams, _NvMOTObjToTrackList::numAllocated, _NvMOTFrame::numBuffers, _NvMOTObjToTrackList::numFilled, _NvMOTProcessParams::numFrames, _NvMOTFrame::objectsIn, _NvMOTFrame::reset, _NvMOTFrame::streamID, and _NvMOTFrame::timeMeta.

◆ allocateMotOutputData() [1/2]

void DsLowLevelTracker::allocateMotOutputData	(	const int	maxVideoStreams,
		const int	maxObjectsPerFrame
	)

inlineprotected

Allocate current-frame tracker output storage.

Parameters

[in]	maxVideoStreams	Maximum number of video streams.
[in]	maxObjectsPerFrame	Maximum number of tracked objects per frame.

This should be equal to or larger than (# of targets)*(max length of shadow tracking)*(# of video streams).

Definition at line 239 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References deAllocateMotOutputData(), _NvMOTTrackedObjList::frameNum, _NvMOTTrackedObjList::list, _NvMOTTrackedObjBatch::list, m_motOutputObjectsMeta, _NvMOTTrackedObjList::numAllocated, _NvMOTTrackedObjBatch::numAllocated, _NvMOTTrackedObjList::numFilled, _NvMOTTrackedObjBatch::numFilled, _NvMOTTrackedObjList::streamID, and _NvMOTTrackedObjList::valid.

◆ allocateMotOutputData() [2/2]

void DsLowLevelTracker::allocateMotOutputData	(	const int	maxVideoStreams,
		const int	maxObjectsPerFrame
	)

inlineprotected

Allocate current-frame tracker output storage.

Parameters

[in]	maxVideoStreams	Maximum number of video streams.
[in]	maxObjectsPerFrame	Maximum number of tracked objects per frame.

This should be equal to or larger than (# of targets)*(max length of shadow tracking)*(# of video streams).

Definition at line 239 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References deAllocateMotOutputData(), _NvMOTTrackedObjList::frameNum, _NvMOTTrackedObjList::list, _NvMOTTrackedObjBatch::list, m_motOutputObjectsMeta, _NvMOTTrackedObjList::numAllocated, _NvMOTTrackedObjBatch::numAllocated, _NvMOTTrackedObjList::numFilled, _NvMOTTrackedObjBatch::numFilled, _NvMOTTrackedObjList::streamID, and _NvMOTTrackedObjList::valid.

Referenced by initialize().

◆ deAllocateMotInputData() [1/2]

void DsLowLevelTracker::deAllocateMotInputData ( )

inlineprotected

Release low-level tracker input storage.

Definition at line 321 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References _NvMOTFrame::bufferList, _NvMOTProcessParams::frameList, _NvMOTObjToTrackList::list, m_motInputParams, _NvMOTProcessParams::numFrames, and _NvMOTFrame::objectsIn.

◆ deAllocateMotInputData() [2/2]

void DsLowLevelTracker::deAllocateMotInputData ( )

inlineprotected

Release low-level tracker input storage.

Definition at line 321 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References _NvMOTFrame::bufferList, _NvMOTProcessParams::frameList, _NvMOTObjToTrackList::list, m_motInputParams, _NvMOTProcessParams::numFrames, and _NvMOTFrame::objectsIn.

Referenced by allocateMotInputData(), and ~DsLowLevelTracker().

◆ deAllocateMotOutputData() [1/2]

void DsLowLevelTracker::deAllocateMotOutputData ( )

inlineprotected

Release current-frame tracker output storage.

Definition at line 266 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References _NvMOTTrackedObjList::list, _NvMOTTrackedObjBatch::list, m_motOutputObjectsMeta, and _NvMOTTrackedObjBatch::numAllocated.

Referenced by allocateMotOutputData(), and ~DsLowLevelTracker().

◆ deAllocateMotOutputData() [2/2]

void DsLowLevelTracker::deAllocateMotOutputData ( )

inlineprotected

Release current-frame tracker output storage.

Definition at line 266 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References _NvMOTTrackedObjList::list, _NvMOTTrackedObjBatch::list, m_motOutputObjectsMeta, and _NvMOTTrackedObjBatch::numAllocated.

◆ generateMotInputParams() [1/2]

bool DsLowLevelTracker::generateMotInputParams	(	const FrameBatch &	framesInBatch,
		const int	numTransforms,
		RoiBatch &	rois,
		const bool	isDetectionDone,
		const uint32_t	frameBatchNo = `0`
	)

inlineprotected

Populate low-level tracker input metadata from frame and ROI batches.

Parameters

[in]	framesInBatch	Source images and frame numbers keyed by stream ID.
[in]	numTransforms	Number of input transforms per frame.
[in]	rois	Detection regions keyed by stream ID.
[in]	isDetectionDone	Indicates whether detection completed for this batch.
[in]	frameBatchNo	Frame-batch number used when batch-based frame IDs are enabled.

Returns: True when at least one input frame is populated.

of bytes.

In case of NV12 image, the input cv::Mat image would have 1.5x height in CV_8UC1 format.

There are two planes: Y-ch and UV-ch.

Y-ch in NV12 is uchar.

UV-ch have half of the height of Y-ch.

UV-ch would start after Y-ch.

UV-ch in NV12 is uchar.

There is only one plane where RGBA pixels are interleaved.

RGBA is in uchar4 format.

{bboxInd, bbox, classId, detectionConfidence}.

Definition at line 346 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References NvBufSurfaceMappedAddr::addr, _NvMOTObjToTrack::bbox, _NvMOTFrame::bufferList, NvBufSurfacePlaneParams::bytesPerPix, _NvMOTObjToTrack::classId, NvBufSurfaceParams::colorFormat, _NvMOTObjToTrack::confidence, NvBufSurfaceParams::dataPtr, NvBufSurfaceParams::dataSize, _NvMOTObjToTrackList::detectionDone, _NvMOTObjToTrack::doTracking, _NvMOTFrame::doTracking, _NvMOTProcessParams::frameList, _NvMOTTimeMeta::frameNum, _NvMOTFrame::frameNum, _NvMOTTimeMeta::frameTimeStamp, _NvMOTTimeMeta::frameTimeValid, Time::getUnixTimestampNanoSeconds(), _NvMOTRect::height, NvBufSurfacePlaneParams::height, NvBufSurfaceParams::height, _NvMOTObjToTrackList::list, _NvMOTTimeMeta::localTimestamp, m_debugVerboseLevel, m_motInputParams, m_srcImgColorFormat, m_useBatchNumForFrameId, NvBufSurfaceParams::mappedAddr, NvBufSurfacePlaneParams::num_planes, _NvMOTObjToTrackList::numAllocated, _NvMOTFrame::numBuffers, _NvMOTObjToTrackList::numFilled, _NvMOTProcessParams::numFrames, NVBUF_COLOR_FORMAT_NV12, NVBUF_COLOR_FORMAT_RGBA, _NvMOTFrame::objectsIn, NvBufSurfacePlaneParams::offset, NvBufSurfacePlaneParams::pitch, NvBufSurfaceParams::pitch, NvBufSurfaceParams::planeParams, NvBufSurfacePlaneParams::psize, _NvMOTFrame::reset, _NvMOTFrame::sensorName, _NvMOTFrame::streamID, _NvMOTFrame::timeMeta, _NvMOTRect::width, NvBufSurfacePlaneParams::width, NvBufSurfaceParams::width, _NvMOTRect::x, and _NvMOTRect::y.

◆ generateMotInputParams() [2/2]

bool DsLowLevelTracker::generateMotInputParams	(	const FrameBatch &	framesInBatch,
		const int	numTransforms,
		RoiBatch &	rois,
		const bool	isDetectionDone,
		const uint32_t	frameBatchNo = `0`
	)

inlineprotected

Populate low-level tracker input metadata from frame and ROI batches.

Parameters

[in]	framesInBatch	Source images and frame numbers keyed by stream ID.
[in]	numTransforms	Number of input transforms per frame.
[in]	rois	Detection regions keyed by stream ID.
[in]	isDetectionDone	Indicates whether detection completed for this batch.
[in]	frameBatchNo	Frame-batch number used when batch-based frame IDs are enabled.

Returns: True when at least one input frame is populated.

of bytes.

In case of NV12 image, the input cv::Mat image would have 1.5x height in CV_8UC1 format.

There are two planes: Y-ch and UV-ch.

Y-ch in NV12 is uchar.

UV-ch have half of the height of Y-ch.

UV-ch would start after Y-ch.

UV-ch in NV12 is uchar.

There is only one plane where RGBA pixels are interleaved.

RGBA is in uchar4 format.

{bboxInd, bbox, classId, detectionConfidence}.

Definition at line 346 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References NvBufSurfaceMappedAddr::addr, _NvMOTObjToTrack::bbox, _NvMOTFrame::bufferList, NvBufSurfacePlaneParams::bytesPerPix, _NvMOTObjToTrack::classId, NvBufSurfaceParams::colorFormat, _NvMOTObjToTrack::confidence, NvBufSurfaceParams::dataPtr, NvBufSurfaceParams::dataSize, _NvMOTObjToTrackList::detectionDone, _NvMOTObjToTrack::doTracking, _NvMOTFrame::doTracking, _NvMOTProcessParams::frameList, _NvMOTTimeMeta::frameNum, _NvMOTFrame::frameNum, _NvMOTTimeMeta::frameTimeStamp, _NvMOTTimeMeta::frameTimeValid, Time::getUnixTimestampNanoSeconds(), _NvMOTRect::height, NvBufSurfacePlaneParams::height, NvBufSurfaceParams::height, _NvMOTObjToTrackList::list, _NvMOTTimeMeta::localTimestamp, m_debugVerboseLevel, m_motInputParams, m_srcImgColorFormat, m_useBatchNumForFrameId, NvBufSurfaceParams::mappedAddr, NvBufSurfacePlaneParams::num_planes, _NvMOTObjToTrackList::numAllocated, _NvMOTFrame::numBuffers, _NvMOTObjToTrackList::numFilled, _NvMOTProcessParams::numFrames, NVBUF_COLOR_FORMAT_NV12, NVBUF_COLOR_FORMAT_RGBA, _NvMOTFrame::objectsIn, NvBufSurfacePlaneParams::offset, NvBufSurfacePlaneParams::pitch, NvBufSurfaceParams::pitch, NvBufSurfaceParams::planeParams, NvBufSurfacePlaneParams::psize, _NvMOTFrame::reset, _NvMOTFrame::sensorName, _NvMOTFrame::streamID, _NvMOTFrame::timeMeta, _NvMOTRect::width, NvBufSurfacePlaneParams::width, NvBufSurfaceParams::width, _NvMOTRect::x, and _NvMOTRect::y.

Referenced by update().

◆ getMotInputParams() [1/2]

const std::map<NvMOTStreamId, NvMOTFrame *> DsLowLevelTracker::getMotInputParams ( )

inline

Return input frame metadata keyed by video stream ID.

Definition at line 155 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References _NvMOTProcessParams::frameList, m_motInputParams, _NvMOTProcessParams::numFrames, and _NvMOTFrame::streamID.

◆ getMotInputParams() [2/2]

const std::map<NvMOTStreamId, NvMOTFrame *> DsLowLevelTracker::getMotInputParams ( )

inline

Return input frame metadata keyed by video stream ID.

Definition at line 155 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References _NvMOTProcessParams::frameList, m_motInputParams, _NvMOTProcessParams::numFrames, and _NvMOTFrame::streamID.

◆ initialize() [1/2]

void DsLowLevelTracker::initialize	(	const uint32_t	gpuId,
		const int	maxVideoStreams,
		const int	numVideoStreams,
		const int	maxObjectsPerFrame,
		const int	numTransforms,
		const uint	maxWidth,
		const uint	maxHeight,
		const uint	maxPitch,
		const NvBufSurfaceColorFormat	srcImgColorFormat,
		std::string	lowLevelTrackerConfigFilePath = `""`,
		const int	debugVerboseLevel = `0`
	)

inline

Allocate tracker metadata and initialize a low-level tracking context.

Parameters

[in]	gpuId	GPU identifier used by the tracker.
[in]	maxVideoStreams	Maximum number of video streams in output storage.
[in]	numVideoStreams	Number of video streams in input storage.
[in]	maxObjectsPerFrame	Maximum number of objects allocated per frame.
[in]	numTransforms	Number of input transforms per frame.
[in]	maxWidth	Maximum transformed frame width.
[in]	maxHeight	Maximum transformed frame height.
[in]	maxPitch	Maximum transformed frame row pitch.
[in]	srcImgColorFormat	Source image color format.
[in]	lowLevelTrackerConfigFilePath	Path to the low-level tracker configuration file.
[in]	debugVerboseLevel	Debug verbosity level.

Allocate mot output for current frame data.

Allocate MOT input data.

Configure tracker component limits.

Leave the per-stream target limit unrestricted.

Leave the per-batch target limit unrestricted.

Initialize the low-level tracker.

Definition at line 80 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References allocateMotInputData(), allocateMotOutputData(), _NvMOTMiscConfig::gpuId, initializeLowLeveTracker(), m_debugVerboseLevel, m_isIntialized, m_motMiscConfig, and m_srcImgColorFormat.

◆ initialize() [2/2]

void DsLowLevelTracker::initialize	(	const uint32_t	gpuId,
		const int	maxVideoStreams,
		const int	numVideoStreams,
		const int	maxObjectsPerFrame,
		const int	numTransforms,
		const uint	maxWidth,
		const uint	maxHeight,
		const uint	maxPitch,
		const NvBufSurfaceColorFormat	srcImgColorFormat,
		std::string	lowLevelTrackerConfigFilePath = `""`,
		const int	debugVerboseLevel = `0`
	)

inline

Allocate tracker metadata and initialize a low-level tracking context.

Parameters

[in]	gpuId	GPU identifier used by the tracker.
[in]	maxVideoStreams	Maximum number of video streams in output storage.
[in]	numVideoStreams	Number of video streams in input storage.
[in]	maxObjectsPerFrame	Maximum number of objects allocated per frame.
[in]	numTransforms	Number of input transforms per frame.
[in]	maxWidth	Maximum transformed frame width.
[in]	maxHeight	Maximum transformed frame height.
[in]	maxPitch	Maximum transformed frame row pitch.
[in]	srcImgColorFormat	Source image color format.
[in]	lowLevelTrackerConfigFilePath	Path to the low-level tracker configuration file.
[in]	debugVerboseLevel	Debug verbosity level.

Allocate mot output for current frame data.

Allocate MOT input data.

Configure tracker component limits.

Leave the per-stream target limit unrestricted.

Leave the per-batch target limit unrestricted.

Initialize the low-level tracker.

Definition at line 80 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References allocateMotInputData(), allocateMotOutputData(), _NvMOTMiscConfig::gpuId, initializeLowLeveTracker(), m_debugVerboseLevel, m_isIntialized, m_motMiscConfig, and m_srcImgColorFormat.

◆ initializeLowLeveTracker() [1/2]

void DsLowLevelTracker::initializeLowLeveTracker	(	uint	maxWidth,
		uint	maxHeight,
		uint	maxPitch,
		NvBufSurfaceColorFormat	colorFormat,
		uint	maxStream,
		uint	numTransforms,
		std::string	lowLevelTrackerConfigFilePath = `""`
	)

inlineprotected

Recreate the low-level tracker context for configured transforms and streams.

Parameters

[in]	maxWidth	Maximum transformed frame width.
[in]	maxHeight	Maximum transformed frame height.
[in]	maxPitch	Maximum transformed frame row pitch.
[in]	colorFormat	Transformed frame color format.
[in]	maxStream	Maximum number of video streams.
[in]	numTransforms	Number of input transforms per frame.
[in]	lowLevelTrackerConfigFilePath	Path to the low-level tracker configuration file.

Store the allocation size in bytes.

Configure the NvMOT context.

Deinitialize NvMOT.

Initialize NvMOT.

Release temporary configuration storage.

Definition at line 181 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References _NvMOTPerTransformBatchConfig::bufferType, _NvMOTConfig::computeConfig, _NvMOTConfig::customConfigFilePath, _NvMOTConfig::customConfigFilePathSize, m_computeType, m_motConfigResponse, m_motMiscConfig, _NvMOTPerTransformBatchConfig::maxHeight, _NvMOTPerTransformBatchConfig::maxPitch, _NvMOTPerTransformBatchConfig::maxSize, _NvMOTConfig::maxStreams, _NvMOTPerTransformBatchConfig::maxWidth, _NvMOTConfig::miscConfig, mp_MotCtx, _NvMOTConfig::numTransforms, NVBUF_MEM_CUDA_UNIFIED, NvMOT_DeInit(), NvMOT_Init(), NvMOTStatus_OK, and _NvMOTConfig::perTransformBatchConfig.

◆ initializeLowLeveTracker() [2/2]

void DsLowLevelTracker::initializeLowLeveTracker	(	uint	maxWidth,
		uint	maxHeight,
		uint	maxPitch,
		NvBufSurfaceColorFormat	colorFormat,
		uint	maxStream,
		uint	numTransforms,
		std::string	lowLevelTrackerConfigFilePath = `""`
	)

inlineprotected

Recreate the low-level tracker context for configured transforms and streams.

Parameters

[in]	maxWidth	Maximum transformed frame width.
[in]	maxHeight	Maximum transformed frame height.
[in]	maxPitch	Maximum transformed frame row pitch.
[in]	colorFormat	Transformed frame color format.
[in]	maxStream	Maximum number of video streams.
[in]	numTransforms	Number of input transforms per frame.
[in]	lowLevelTrackerConfigFilePath	Path to the low-level tracker configuration file.

Store the allocation size in bytes.

Configure the NvMOT context.

Deinitialize NvMOT.

Initialize NvMOT.

Release temporary configuration storage.

Definition at line 181 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References _NvMOTPerTransformBatchConfig::bufferType, _NvMOTConfig::computeConfig, _NvMOTConfig::customConfigFilePath, _NvMOTConfig::customConfigFilePathSize, m_computeType, m_motConfigResponse, m_motMiscConfig, _NvMOTPerTransformBatchConfig::maxHeight, _NvMOTPerTransformBatchConfig::maxPitch, _NvMOTPerTransformBatchConfig::maxSize, _NvMOTConfig::maxStreams, _NvMOTPerTransformBatchConfig::maxWidth, _NvMOTConfig::miscConfig, mp_MotCtx, _NvMOTConfig::numTransforms, NVBUF_MEM_CUDA_UNIFIED, NvMOT_DeInit(), NvMOT_Init(), NvMOTStatus_OK, and _NvMOTConfig::perTransformBatchConfig.

Referenced by initialize().

◆ isInitialized() [1/2]

bool DsLowLevelTracker::isInitialized ( )

inline

Report whether the low-level tracker is initialized.

Definition at line 64 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References m_isIntialized.

◆ isInitialized() [2/2]

bool DsLowLevelTracker::isInitialized ( )

inline

Report whether the low-level tracker is initialized.

Definition at line 64 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References m_isIntialized.

◆ removeStream() [1/2]

const void DsLowLevelTracker::removeStream ( const NvMOTStreamId videoStreamID )

inline

Remove a stream from the low-level tracker context.

Parameters

[in] videoStreamID Video stream ID to remove.

Definition at line 149 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References mp_MotCtx, and NvMOT_RemoveStreams().

◆ removeStream() [2/2]

const void DsLowLevelTracker::removeStream ( const NvMOTStreamId videoStreamID )

inline

Remove a stream from the low-level tracker context.

Parameters

[in] videoStreamID Video stream ID to remove.

Definition at line 149 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References mp_MotCtx, and NvMOT_RemoveStreams().

◆ update() [1/2]

const NvMOTTrackedObjBatch& DsLowLevelTracker::update	(	const FrameBatch &	framesInBatch,
		const int	numTransforms,
		RoiBatch	rois = `RoiBatch()`,
		const bool	isDetectionDone = `false`,
		const uint32_t	frameBatchNo = `0`
	)

inline

Process a batch of frames and return the current tracker output.

Parameters

[in]	framesInBatch	Source images and frame numbers keyed by stream ID.
[in]	numTransforms	Number of input transforms per frame.
[in]	rois	Detection regions keyed by stream ID.
[in]	isDetectionDone	Indicates whether detection completed for this batch.
[in]	frameBatchNo	Frame-batch number used when batch-based frame IDs are enabled.

Construct the input data.

Process a frame.

Definition at line 123 of file sources/libs/nvmultiobjecttracker/include/modules/utility/DsLowLevelTracker.hpp.

References generateMotInputParams(), m_motInputParams, m_motOutputObjectsMeta, mp_MotCtx, _NvMOTTrackedObjBatch::numFilled, NvMOT_Process(), and NvMOTStatus_OK.

◆ update() [2/2]

const NvMOTTrackedObjBatch& DsLowLevelTracker::update	(	const FrameBatch &	framesInBatch,
		const int	numTransforms,
		RoiBatch	rois = `RoiBatch()`,
		const bool	isDetectionDone = `false`,
		const uint32_t	frameBatchNo = `0`
	)

inline

Process a batch of frames and return the current tracker output.

Parameters

[in]	framesInBatch	Source images and frame numbers keyed by stream ID.
[in]	numTransforms	Number of input transforms per frame.
[in]	rois	Detection regions keyed by stream ID.
[in]	isDetectionDone	Indicates whether detection completed for this batch.
[in]	frameBatchNo	Frame-batch number used when batch-based frame IDs are enabled.