The AMD rocAL meta data functions. More...

Functions
RocalMetaData ROCAL_API_CALL	rocalCreateLabelReader (RocalContext rocal_context, const char *source_path)
	creates label reader More...

RocalMetaData ROCAL_API_CALL	rocalCreateVideoLabelReader (RocalContext rocal_context, const char *source_path, unsigned sequence_length, unsigned frame_step, unsigned frame_stride, bool file_list_frame_num=true)
	creates video label reader More...

RocalMetaData ROCAL_API_CALL	rocalCreateTFReader (RocalContext rocal_context, const char source_path, bool is_output, const char user_key_for_label, const char *user_key_for_filename)
	create tf reader More...

RocalMetaData ROCAL_API_CALL	rocalCreateTFReaderDetection (RocalContext rocal_context, const char source_path, bool is_output, const char user_key_for_label, const char user_key_for_text, const char user_key_for_xmin, const char user_key_for_ymin, const char user_key_for_xmax, const char user_key_for_ymax, const char user_key_for_filename)
	create tf reader detection More...

RocalMetaData ROCAL_API_CALL	rocalCreateCOCOReader (RocalContext rocal_context, const char *source_path, bool is_output, bool mask=false, bool ltrb=true, bool is_box_encoder=false, bool avoid_class_remapping=false, bool aspect_ratio_grouping=false, bool is_box_iou_matcher=false)
	create coco reader More...

RocalMetaData ROCAL_API_CALL	rocalCreateCOCOReaderKeyPoints (RocalContext rocal_context, const char *source_path, bool is_output, float sigma=0.0, unsigned pose_output_width=0, unsigned pose_output_height=0)
	create coco reader key points More...

RocalMetaData ROCAL_API_CALL	rocalCreateTextFileBasedLabelReader (RocalContext rocal_context, const char *source_path)
	create text file based label reader More...

RocalMetaData ROCAL_API_CALL	rocalCreateCaffeLMDBLabelReader (RocalContext rocal_context, const char *source_path)
	create caffe LMDB label reader More...

RocalMetaData ROCAL_API_CALL	rocalCreateCaffeLMDBReaderDetection (RocalContext rocal_context, const char *source_path)
	create caffe LMDB label reader for object detection More...

RocalMetaData ROCAL_API_CALL	rocalCreateCaffe2LMDBLabelReader (RocalContext rocal_context, const char *source_path, bool is_output)
	create caffe2 LMDB label reader More...

RocalMetaData ROCAL_API_CALL	rocalCreateCaffe2LMDBReaderDetection (RocalContext rocal_context, const char *source_path, bool is_output)
	create caffe2 LMDB label reader for object detection More...

RocalMetaData ROCAL_API_CALL	rocalCreateMXNetReader (RocalContext rocal_context, const char *source_path, bool is_output)
	create MXNet reader More...

void ROCAL_API_CALL	rocalGetImageName (RocalContext rocal_context, char *buf)
	get image name More...

unsigned ROCAL_API_CALL	rocalGetImageNameLen (RocalContext rocal_context, int *buf)
	get image name lengths More...

RocalTensorList ROCAL_API_CALL	rocalGetImageLabels (RocalContext rocal_context)
	get image labels More...

unsigned ROCAL_API_CALL	rocalGetBoundingBoxCount (RocalContext rocal_context)
	get bounding box count More...

unsigned ROCAL_API_CALL	rocalGetMaskCount (RocalContext p_context, int *buf)
	get mask count More...

RocalTensorList ROCAL_API_CALL	rocalGetMaskCoordinates (RocalContext p_context, int *bufcount)
	get mask coordinates More...

RocalTensorList ROCAL_API_CALL	rocalGetBoundingBoxLabel (RocalContext rocal_context)
	get bounding box label More...

RocalTensorList ROCAL_API_CALL	rocalGetBoundingBoxCords (RocalContext rocal_context)
	get bounding box coordinates More...

void ROCAL_API_CALL	rocalGetImageSizes (RocalContext rocal_context, int *buf)
	get image sizes More...

void ROCAL_API_CALL	rocalGetROIImageSizes (RocalContext rocal_context, int *buf)
	get ROI image sizes More...

RocalMetaData ROCAL_API_CALL	rocalCreateTextCifar10LabelReader (RocalContext rocal_context, const char source_path, const char file_prefix)
	create text cifar10 label reader More...

void ROCAL_API_CALL	rocalGetOneHotImageLabels (RocalContext rocal_context, void *buf, int numOfClasses, int dest)
	get one hot image labels More...

void ROCAL_API_CALL	rocalGetSequenceStartFrameNumber (RocalContext rocal_context, unsigned int *buf)
	get sequence starting frame number More...

void ROCAL_API_CALL	rocalGetSequenceFrameTimestamps (RocalContext rocal_context, float *buf)
	get sequence time stamps More...

void ROCAL_API_CALL	rocalBoxEncoder (RocalContext p_context, std::vector< float > &anchors, float criteria, std::vector< float > &means, std::vector< float > &stds, bool offset=false, float scale=1.0)
	rocal box encoder More...

void ROCAL_API_CALL	rocalCopyEncodedBoxesAndLables (RocalContext p_context, float boxes_buf, int labels_buf)
	copy encoded boxes and labels More...

RocalMetaData ROCAL_API_CALL	rocalGetEncodedBoxesAndLables (RocalContext p_context, int num_encoded_boxes)

void ROCAL_API_CALL	rocalGetImageId (RocalContext p_context, int *buf)
	get image id More...

void ROCAL_API_CALL	rocalGetJointsDataPtr (RocalContext p_context, RocalJointsData **joints_data)
	get joints data pointer More...

void ROCAL_API_CALL	rocalBoxIouMatcher (RocalContext p_context, std::vector< float > &anchors, float high_threshold, float low_threshold, bool allow_low_quality_matches=true)
	API to enable box IOU matcher and pass required params to pipeline. More...

RocalTensorList ROCAL_API_CALL	rocalGetMatchedIndices (RocalContext p_context)
	API to return the matched indices for the bounding box and anchors. More...

Detailed Description

The AMD rocAL meta data functions.

Function Documentation

◆ rocalBoxEncoder()

void ROCAL_API_CALL rocalBoxEncoder	(	RocalContext	p_context,
		std::vector< float > &	anchors,
		float	criteria,
		std::vector< float > &	means,
		std::vector< float > &	stds,
		bool	offset = `false`,
		float	scale = `1.0`
	)

rocal box encoder

Parameters

[in]	anchors	Anchors to be used for encoding, as the array of floats is in the ltrb format.
[in]	criteria	Threshold IoU for matching bounding boxes with anchors. The value needs to be between 0 and 1.
[in]	offset	Returns normalized offsets ((encoded_bboxesscale - anchorsscale) - mean) / stds in EncodedBBoxes that use std and the mean and scale arguments
[in]	means	[x y w h] mean values for normalization.
[in]	stds	[x y w h] standard deviations for offset normalization.
[in]	scale	Rescales the box and anchor values before the offset is calculated (for example, to return to the absolute values).

◆ rocalBoxIouMatcher()

void ROCAL_API_CALL rocalBoxIouMatcher	(	RocalContext	p_context,
		std::vector< float > &	anchors,
		float	high_threshold,
		float	low_threshold,
		bool	allow_low_quality_matches = `true`
	)

API to enable box IOU matcher and pass required params to pipeline.

Parameters

[in]	p_context	rocAL context
[in]	anchors	The anchors / ground truth bounding box coordinates
[in]	high_threshold	The max threshold for IOU
[in]	low_threshold	The min threshold for IOU
[in]	allow_low_quality_matches	bool value when set to true allows low quality matches

◆ rocalCopyEncodedBoxesAndLables()

void ROCAL_API_CALL rocalCopyEncodedBoxesAndLables	(	RocalContext	p_context,
		float *	boxes_buf,
		int *	labels_buf
	)

copy encoded boxes and labels

Parameters

[in]	p_context	rocal context
[out]	boxes_buf	user's buffer that will be filled with encoded bounding boxes . Its needs to be at least of size batch_size.
[out]	labels_buf	user's buffer that will be filled with encoded labels . Its needs to be at least of size batch_size.

◆ rocalCreateCaffe2LMDBLabelReader()

RocalMetaData ROCAL_API_CALL rocalCreateCaffe2LMDBLabelReader	(	RocalContext	rocal_context,
		const char *	source_path,
		bool	is_output
	)

create caffe2 LMDB label reader

Parameters

[in]	rocal_context	rocal context
[in]	source_path	path to the Caffe2LMDB records for Classification

Returns: RocalMetaData object, can be used to inquire about the rocal's output (processed) tensors

◆ rocalCreateCaffe2LMDBReaderDetection()

RocalMetaData ROCAL_API_CALL rocalCreateCaffe2LMDBReaderDetection	(	RocalContext	rocal_context,
		const char *	source_path,
		bool	is_output
	)

create caffe2 LMDB label reader for object detection

Parameters

[in]	rocal_context	rocal context
[in]	source_path	path to the Caffe2LMDB records for Object Detection

Returns: RocalMetaData object - can be used to inquire about the rocal's output (processed) tensors

◆ rocalCreateCaffeLMDBLabelReader()

RocalMetaData ROCAL_API_CALL rocalCreateCaffeLMDBLabelReader	(	RocalContext	rocal_context,
		const char *	source_path
	)

create caffe LMDB label reader

Parameters

[in]	rocal_context
[in]	source_path	path to the Caffe LMDB records for Classification

Returns: RocalMetaData object, can be used to inquire about the rocal's output (processed) tensors

◆ rocalCreateCaffeLMDBReaderDetection()

RocalMetaData ROCAL_API_CALL rocalCreateCaffeLMDBReaderDetection	(	RocalContext	rocal_context,
		const char *	source_path
	)

create caffe LMDB label reader for object detection

Parameters

[in]	rocal_context	rocal context
[in]	source_path	path to the Caffe LMDB records for Object Detection

Returns: RocalMetaData object, can be used to inquire about the rocal's output (processed) tensors

◆ rocalCreateCOCOReader()

RocalMetaData ROCAL_API_CALL rocalCreateCOCOReader	(	RocalContext	rocal_context,
		const char *	source_path,
		bool	is_output,
		bool	mask = `false`,
		bool	ltrb = `true`,
		bool	is_box_encoder = `false`,
		bool	avoid_class_remapping = `false`,
		bool	aspect_ratio_grouping = `false`,
		bool	is_box_iou_matcher = `false`
	)

create coco reader

Parameters

[in]	rocal_context	rocal context
[in]	source_path	path to the coco json file
[in]	mask	enable polygon masks
[in]	ltrb	If set to True, bboxes are returned as [left, top, right, bottom]. If set to False, the bboxes are returned as [x, y, width, height]
[in]	is_box_encoder	If set to True, bboxes are returned as encoded bboxes using the anchors
[in]	avoid_class_remapping	If set to True, classes are returned directly. Otherwise, classes are mapped to consecutive values
[in]	aspect_ratio_grouping	If set to True, images are sorted by their aspect ratio and returned
[in]	is_box_iou_matcher	If set to True, box iou matcher which returns matched indices is enabled in the pipeline

Returns: RocalMetaData object, can be used to inquire about the rocal's output (processed) tensors

◆ rocalCreateCOCOReaderKeyPoints()

RocalMetaData ROCAL_API_CALL rocalCreateCOCOReaderKeyPoints	(	RocalContext	rocal_context,
		const char *	source_path,
		bool	is_output,
		float	sigma = `0.0`,
		unsigned	pose_output_width = `0`,
		unsigned	pose_output_height = `0`
	)

create coco reader key points

Parameters

[in]	rocal_context	rocal context
[in]	source_path	path to the coco json file
[in]	sigma	sigma used for gaussian distribution (needed for HRNet Pose estimation)
[in]	pose_output_width	output image width (needed for HRNet Pose estimation)
[in]	pose_output_width	output image height (needed for HRNet Pose estimation)

Returns: RocalMetaData object, can be used to inquire about the rocal's output (processed) tensors

◆ rocalCreateLabelReader()

RocalMetaData ROCAL_API_CALL rocalCreateLabelReader	(	RocalContext	rocal_context,
		const char *	source_path
	)

creates label reader

Parameters

[in]	rocal_context	rocal context
[in]	source_path	path to the folder that contains the dataset or metadata file

Returns: RocalMetaData object, can be used to inquire about the rocal's output (processed) tensors

◆ rocalCreateMXNetReader()

RocalMetaData ROCAL_API_CALL rocalCreateMXNetReader	(	RocalContext	rocal_context,
		const char *	source_path,
		bool	is_output
	)

create MXNet reader

Parameters

[in]	rocal_context	rocal context
[in]	source_path	path to the MXNet recordio files for Classification

Returns: RocalMetaData object - can be used to inquire about the rocal's output (processed) tensors

◆ rocalCreateTextCifar10LabelReader()

RocalMetaData ROCAL_API_CALL rocalCreateTextCifar10LabelReader	(	RocalContext	rocal_context,
		const char *	source_path,
		const char *	file_prefix
	)

create text cifar10 label reader

Parameters

[in]	rocal_context	rocal context
[in]	source_path	path to the file that contains the metadata file
[in]	filename_prefix	look only files with prefix ( needed for cifar10)

Returns: RocalMetaData object, can be used to inquire about the rocal's output (processed) tensors

◆ rocalCreateTextFileBasedLabelReader()

RocalMetaData ROCAL_API_CALL rocalCreateTextFileBasedLabelReader	(	RocalContext	rocal_context,
		const char *	source_path
	)

create text file based label reader

Parameters

[in]	rocal_context
[in]	source_path	path to the file that contains the metadata file

Returns: RocalMetaData object, can be used to inquire about the rocal's output (processed) tensors

◆ rocalCreateTFReader()

RocalMetaData ROCAL_API_CALL rocalCreateTFReader	(	RocalContext	rocal_context,
		const char *	source_path,
		bool	is_output,
		const char *	user_key_for_label,
		const char *	user_key_for_filename
	)

create tf reader

Parameters

[in]	rocal_context	rocal context
[in]	source_path	path to the coco json file

Returns: RocalMetaData object, can be used to inquire about the rocal's output (processed) tensors

◆ rocalCreateTFReaderDetection()

RocalMetaData ROCAL_API_CALL rocalCreateTFReaderDetection	(	RocalContext	rocal_context,
		const char *	source_path,
		bool	is_output,
		const char *	user_key_for_label,
		const char *	user_key_for_text,
		const char *	user_key_for_xmin,
		const char *	user_key_for_ymin,
		const char *	user_key_for_xmax,
		const char *	user_key_for_ymax,
		const char *	user_key_for_filename
	)

create tf reader detection

Parameters

[in]	rocal_context
[in]	source_path	path to the coco json file

Returns: RocalMetaData object, can be used to inquire about the rocal's output (processed) tensors

◆ rocalCreateVideoLabelReader()

RocalMetaData ROCAL_API_CALL rocalCreateVideoLabelReader	(	RocalContext	rocal_context,
		const char *	source_path,
		unsigned	sequence_length,
		unsigned	frame_step,
		unsigned	frame_stride,
		bool	file_list_frame_num = `true`
	)

creates video label reader

Parameters

[in]	rocal_context	rocal context
[in]	source_path	path to the folder that contains the dataset or metadata file
[in]	sequence_length	The number of frames in a sequence.
[in]	frame_step	Frame interval between each sequence.
[in]	frame_stride	Frame interval between frames in a sequence.
[in]	file_list_frame_num	True : when the inputs from text file is to be considered as frame numbers. False : when the inputs from text file is to considered as timestamps.

Returns: RocalMetaData object, can be used to inquire about the rocal's output (processed) tensors

◆ rocalGetBoundingBoxCords()

RocalTensorList ROCAL_API_CALL rocalGetBoundingBoxCords ( RocalContext rocal_context )

get bounding box coordinates

Parameters

[in]	rocal_context	rocal context
[out]	buf	The user's buffer that will be filled with bounding box coords info for the images in the output batch. It needs to be of size returned by a call to the rocalGetBoundingBoxCords

Returns: RocalTensorList of bounding box co-ordinates

◆ rocalGetBoundingBoxCount()

unsigned ROCAL_API_CALL rocalGetBoundingBoxCount ( RocalContext rocal_context )

get bounding box count

Parameters

[in]	rocal_context	rocal context
[out]	buf	The user's buffer that will be filled with number of object in the images.

Returns: The size of the buffer needs to be provided by user to get bounding box info for all images in the output batch.

◆ rocalGetBoundingBoxLabel()

RocalTensorList ROCAL_API_CALL rocalGetBoundingBoxLabel ( RocalContext rocal_context )

get bounding box label

Parameters

[in]	rocal_context	rocal context
[out]	buf	The user's buffer that will be filled with bounding box label info for the images in the output batch. It needs to be of size returned by a call to the rocalGetBoundingBoxCount

Returns: RocalTensorList of labels associated with bounding box coordinates

◆ rocalGetEncodedBoxesAndLables()

RocalMetaData ROCAL_API_CALL rocalGetEncodedBoxesAndLables	(	RocalContext	p_context,
		int	num_encoded_boxes
	)

Parameters

boxes_buf	ptr to user's buffer that will be filled with encoded bounding boxes . Its needs to be at least of size batch_size.
labels_buf	user's buffer that will be filled with encoded labels . Its needs to be at least of size batch_size.

◆ rocalGetImageId()

void ROCAL_API_CALL rocalGetImageId	(	RocalContext	p_context,
		int *	buf
	)

get image id

Parameters

rocal_context	rocal context
buf	The user's buffer that will be filled with image id info for the images in the output batch.

◆ rocalGetImageLabels()

RocalTensorList ROCAL_API_CALL rocalGetImageLabels ( RocalContext rocal_context )

get image labels

Parameters

[in]	meta_data	RocalMetaData object that contains info about the images and labels
[out]	buf	user's buffer that will be filled with labels. Its needs to be at least of size batch_size.

Returns: RocalTensorList of labels associated with image

◆ rocalGetImageName()

void ROCAL_API_CALL rocalGetImageName	(	RocalContext	rocal_context,
		char *	buf
	)

get image name

Parameters

[in]	rocal_context	rocal context
[out]	buf	user buffer provided to be filled with output image names for images in the output batch.

◆ rocalGetImageNameLen()

unsigned ROCAL_API_CALL rocalGetImageNameLen	(	RocalContext	rocal_context,
		int *	buf
	)

get image name lengths

Parameters

[in]	rocal_context	rocal context
[out]	buf	userbuffer provided to be filled with the length of the image names in the output batch

Returns: The size of the buffer needs to be provided by user to get the image names of the output batch

◆ rocalGetImageSizes()

void ROCAL_API_CALL rocalGetImageSizes	(	RocalContext	rocal_context,
		int *	buf
	)

get image sizes

Parameters

[in]	rocal_context	rocal context
[out]	buf	The user's buffer that will be filled with images sizes info for the images in the output batch

◆ rocalGetJointsDataPtr()

void ROCAL_API_CALL rocalGetJointsDataPtr	(	RocalContext	p_context,
		RocalJointsData **	joints_data
	)

get joints data pointer

Parameters

[in]	rocal_context	rocal context
[out]	joints_data	The user's RocalJointsData pointer that will be pointed to JointsDataBatch pointer

◆ rocalGetMaskCoordinates()

RocalTensorList ROCAL_API_CALL rocalGetMaskCoordinates	(	RocalContext	p_context,
		int *	bufcount
	)

get mask coordinates

Parameters

[in]	rocal_context	rocal context
[out]	bufcount	The user's buffer that will be filled with polygon size for the mask info

Returns: The tensorlist with the mask coordinates

◆ rocalGetMaskCount()

unsigned ROCAL_API_CALL rocalGetMaskCount	(	RocalContext	p_context,
		int *	buf
	)

get mask count

Parameters

[in]	rocal_context	rocal context
[out]	buf	the imageIdx in the output batch

Returns: The size of the buffer needs to be provided by user to get mask box info associated with image_idx in the output batch.

◆ rocalGetMatchedIndices()

RocalTensorList ROCAL_API_CALL rocalGetMatchedIndices ( RocalContext p_context )

API to return the matched indices for the bounding box and anchors.

Parameters

[in] p_context rocAL context

Returns: RocalTensorList of matched indices

◆ rocalGetOneHotImageLabels()

void ROCAL_API_CALL rocalGetOneHotImageLabels	(	RocalContext	rocal_context,
		void *	buf,
		int	numOfClasses,
		int	dest
	)

get one hot image labels

Parameters

[in]	meta_data	RocalMetaData object that contains info about the images and labels
[in]	numOfClasses	the number of classes for a image dataset
[out]	buf	user's buffer that will be filled with labels. Its needs to be at least of size batch_size.
[in]	dest	destination can be host=0 / device=1

◆ rocalGetROIImageSizes()

void ROCAL_API_CALL rocalGetROIImageSizes	(	RocalContext	rocal_context,
		int *	buf
	)

get ROI image sizes

Parameters

[in]	rocal_context	rocal context
[out]	buf	The user's buffer that will be filled with ROI image size info for the images in the output batch

◆ rocalGetSequenceFrameTimestamps()

void ROCAL_API_CALL rocalGetSequenceFrameTimestamps	(	RocalContext	rocal_context,
		float *	buf
	)

get sequence time stamps

Parameters

[in]	rocal_context	rocal context
[out]	buf	The user's buffer that will be filled with frame timestamps of each of the frames in output batch sequences.

◆ rocalGetSequenceStartFrameNumber()

void ROCAL_API_CALL rocalGetSequenceStartFrameNumber	(	RocalContext	rocal_context,
		unsigned int *	buf
	)

get sequence starting frame number

Parameters

[in]	rocal_context	rocal context
[out]	buf	The user's buffer that will be filled with starting frame numbers of the output batch sequences.

AMD rocAL - Meta Data API

AMD rocAL - Meta Data API#

Functions

Detailed Description

Function Documentation

◆ rocalBoxEncoder()

◆ rocalBoxIouMatcher()

◆ rocalCopyEncodedBoxesAndLables()

◆ rocalCreateCaffe2LMDBLabelReader()

◆ rocalCreateCaffe2LMDBReaderDetection()

◆ rocalCreateCaffeLMDBLabelReader()

◆ rocalCreateCaffeLMDBReaderDetection()

◆ rocalCreateCOCOReader()

◆ rocalCreateCOCOReaderKeyPoints()

◆ rocalCreateLabelReader()

◆ rocalCreateMXNetReader()

◆ rocalCreateTextCifar10LabelReader()

◆ rocalCreateTextFileBasedLabelReader()

◆ rocalCreateTFReader()

◆ rocalCreateTFReaderDetection()

◆ rocalCreateVideoLabelReader()

◆ rocalGetBoundingBoxCords()

◆ rocalGetBoundingBoxCount()

◆ rocalGetBoundingBoxLabel()

◆ rocalGetEncodedBoxesAndLables()

◆ rocalGetImageId()

◆ rocalGetImageLabels()

◆ rocalGetImageName()

◆ rocalGetImageNameLen()

◆ rocalGetImageSizes()

◆ rocalGetJointsDataPtr()

◆ rocalGetMaskCoordinates()

◆ rocalGetMaskCount()

◆ rocalGetMatchedIndices()

◆ rocalGetOneHotImageLabels()

◆ rocalGetROIImageSizes()

◆ rocalGetSequenceFrameTimestamps()

◆ rocalGetSequenceStartFrameNumber()