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NVIDIA DeepStream SDK API Reference5.0 Release |
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NVIDIA DeepStream SDK API Reference5.0 Release |
Defines NVIDIA DeepStream Metadata Structures
Description: This file defines DeepStream metadata structures.
Definition in file nvdsmeta.h.
Go to the source code of this file.
Data Structures | |
| struct | _NvDsComp_BboxInfo |
| Holds unclipped positional bounding box coordinates of the object processed by the component. More... | |
| struct | _NvDsMetaPool |
| Holds information about a given metadata pool. More... | |
| struct | _NvDsBaseMeta |
| Holds information about base metadata of a given metadata type. More... | |
| struct | _NvDsBatchMeta |
| Holds information about a formed batch containing frames from different sources. More... | |
| struct | _NvDsFrameMeta |
| Holds metadata for a frame in a batch. More... | |
| struct | _NvDsObjectMeta |
| Holds metadata for an object in the frame. More... | |
| struct | _NvDsClassifierMeta |
| Holds classifier metadata for an object. More... | |
| struct | _NvDsLabelInfo |
| Holds label metadata for the classifier. More... | |
| struct | NvDsDisplayMeta |
| Holds display metadata that the user can specify in the frame. More... | |
| struct | _NvDsUserMeta |
| Holds user metadata. More... | |
Macros | |
| #define | MAX_USER_FIELDS 4 |
| Defines the number of additional fields available to the user in the metadata structure. More... | |
| #define | MAX_RESERVED_FIELDS 4 |
| #define | MAX_LABEL_SIZE 128 |
| Defines the maximum size of an array for storing a text result. More... | |
| #define | MAX_ELEMENTS_IN_DISPLAY_META 16 |
| Defines the maximum number of elements that a given display meta can hold. More... | |
| #define | UNTRACKED_OBJECT_ID 0xFFFFFFFFFFFFFFFF |
| Defines an untracked object ID. More... | |
Typedefs | |
| typedef GList | NvDsFrameMetaList |
| typedef GList | NvDsUserMetaList |
| typedef GList | NvDsObjectMetaList |
| typedef GList | NvDisplayMetaList |
| typedef GList | NvDsClassifierMetaList |
| typedef GList | NvDsLabelInfoList |
| typedef GList | NvDsMetaList |
| typedef void | NvDsElementMeta |
| typedef gpointer(* | NvDsMetaCopyFunc )(gpointer data, gpointer user_data) |
| Defines the type of a callback to copy metadata. More... | |
| typedef void(* | NvDsMetaReleaseFunc )(gpointer data, gpointer user_data) |
| Defines the type of a callback to free metadata. More... | |
| typedef struct _NvDsComp_BboxInfo | NvDsComp_BboxInfo |
| Holds unclipped positional bounding box coordinates of the object processed by the component. More... | |
| typedef struct _NvDsMetaPool | NvDsMetaPool |
| Holds information about a given metadata pool. More... | |
| typedef struct _NvDsBaseMeta | NvDsBaseMeta |
| Holds information about base metadata of a given metadata type. More... | |
| typedef struct _NvDsBatchMeta | NvDsBatchMeta |
| Holds information about a formed batch containing frames from different sources. More... | |
| typedef struct _NvDsFrameMeta | NvDsFrameMeta |
| Holds metadata for a frame in a batch. More... | |
| typedef struct _NvDsObjectMeta | NvDsObjectMeta |
| Holds metadata for an object in the frame. More... | |
| typedef struct _NvDsClassifierMeta | NvDsClassifierMeta |
| Holds classifier metadata for an object. More... | |
| typedef struct _NvDsLabelInfo | NvDsLabelInfo |
| Holds label metadata for the classifier. More... | |
| typedef struct NvDsDisplayMeta | NvDsDisplayMeta |
| Holds display metadata that the user can specify in the frame. More... | |
| typedef struct _NvDsUserMeta | NvDsUserMeta |
| Holds user metadata. More... | |
Enumerations | |
| enum | NvDsMetaType { NVDS_INVALID_META =-1, NVDS_BATCH_META = 1, NVDS_FRAME_META, NVDS_OBJ_META, NVDS_DISPLAY_META, NVDS_CLASSIFIER_META, NVDS_LABEL_INFO_META, NVDS_USER_META, NVDS_PAYLOAD_META, NVDS_EVENT_MSG_META, NVDS_OPTICAL_FLOW_META, NVDS_LATENCY_MEASUREMENT_META, NVDSINFER_TENSOR_OUTPUT_META, NVDSINFER_SEGMENTATION_META, NVDS_CROP_IMAGE_META, NVDS_TRACKER_PAST_FRAME_META, NVDS_AUDIO_BATCH_META, NVDS_AUDIO_FRAME_META, NVDS_RESERVED_META = 4095, NVDS_GST_CUSTOM_META = 4096, NVDS_START_USER_META = NVDS_GST_CUSTOM_META + 4096 + 1, NVDS_FORCE32_META = 0x7FFFFFFF } |
| Specifies the type of metadata. More... | |
Functions | |
| void | nvds_acquire_meta_lock (NvDsBatchMeta *batch_meta) |
| Acquires a lock before updating metadata. More... | |
| void | nvds_release_meta_lock (NvDsBatchMeta *batch_meta) |
| Releases the lock after updating metadata. More... | |
| NvDsBatchMeta * | nvds_create_batch_meta (guint max_batch_size) |
| Creates a batch metadata structure for a batch of specified size. More... | |
| gboolean | nvds_destroy_batch_meta (NvDsBatchMeta *batch_meta) |
| Destroys a batch metadata structure. More... | |
| NvDsFrameMeta * | nvds_acquire_frame_meta_from_pool (NvDsBatchMeta *batch_meta) |
| Acquires a frame meta from a batch's frame meta pool. More... | |
| void | nvds_add_frame_meta_to_batch (NvDsBatchMeta *batch_meta, NvDsFrameMeta *frame_meta) |
| Adds a frame meta to a batch meta. More... | |
| void | nvds_remove_frame_meta_from_batch (NvDsBatchMeta *batch_meta, NvDsFrameMeta *frame_meta) |
| Removes a frame meta from a batch meta. More... | |
| NvDsObjectMeta * | nvds_acquire_obj_meta_from_pool (NvDsBatchMeta *batch_meta) |
| Acquires an object meta from a batch meta's object meta pool. More... | |
| void | nvds_add_obj_meta_to_frame (NvDsFrameMeta *frame_meta, NvDsObjectMeta *obj_meta, NvDsObjectMeta *obj_parent) |
| Adds an object meta to a frame meta. More... | |
| void | nvds_remove_obj_meta_from_frame (NvDsFrameMeta *frame_meta, NvDsObjectMeta *obj_meta) |
| Removes an object meta from the frame meta to which it is attached. More... | |
| NvDsClassifierMeta * | nvds_acquire_classifier_meta_from_pool (NvDsBatchMeta *batch_meta) |
| Acquires a classifier meta from a batch meta's classifier meta pool. More... | |
| void | nvds_add_classifier_meta_to_object (NvDsObjectMeta *obj_meta, NvDsClassifierMeta *classifier_meta) |
| Adds a classifier meta the appropriate object meta. More... | |
| void | nvds_remove_classifier_meta_from_obj (NvDsObjectMeta *obj_meta, NvDsClassifierMeta *classifier_meta) |
| Removes a classifier meta from the object meta to which it is attached. More... | |
| NvDsDisplayMeta * | nvds_acquire_display_meta_from_pool (NvDsBatchMeta *batch_meta) |
| Acquires a display meta from a batch meta's display meta pool. More... | |
| void | nvds_add_display_meta_to_frame (NvDsFrameMeta *frame_meta, NvDsDisplayMeta *display_meta) |
| Adds a display meta to the appropriate frame meta. More... | |
| void | nvds_remove_display_meta_from_frame (NvDsFrameMeta *frame_meta, NvDsDisplayMeta *display_meta) |
| Removes a display meta from the frame meta to which it is attached. More... | |
| NvDsLabelInfo * | nvds_acquire_label_info_meta_from_pool (NvDsBatchMeta *batch_meta) |
| Acquires a label info meta from a batch meta's label info meta pool. More... | |
| void | nvds_add_label_info_meta_to_classifier (NvDsClassifierMeta *classifier_meta, NvDsLabelInfo *label_info_meta) |
| Adds a label info meta to a classifier meta. More... | |
| void | nvds_remove_label_info_meta_from_classifier (NvDsClassifierMeta *classifier_meta, NvDsLabelInfo *label_info_meta) |
| Removes a label info meta from the classifier meta to which it is attached. More... | |
| void | nvds_add_user_meta_to_batch (NvDsBatchMeta *batch_meta, NvDsUserMeta *user_meta) |
| Add a user meta to a batch meta. More... | |
| void | nvds_add_user_meta_to_frame (NvDsFrameMeta *frame_meta, NvDsUserMeta *user_meta) |
| Add a user meta to a frame meta. More... | |
| void | nvds_add_user_meta_to_obj (NvDsObjectMeta *obj_meta, NvDsUserMeta *user_meta) |
| Add a user meta user to an object meta. More... | |
| NvDsUserMeta * | nvds_acquire_user_meta_from_pool (NvDsBatchMeta *batch_meta) |
| Acquires a user meta from a batch meta's user meta pool. More... | |
| void | nvds_remove_user_meta_from_batch (NvDsBatchMeta *batch_meta, NvDsUserMeta *user_meta) |
| Removes a user meta from a batch meta to which it is attached. More... | |
| void | nvds_remove_user_meta_from_frame (NvDsFrameMeta *frame_meta, NvDsUserMeta *user_meta) |
| Removes a user meta from a frame meta to which it is attached. More... | |
| void | nvds_remove_user_meta_from_object (NvDsObjectMeta *obj_meta, NvDsUserMeta *user_meta) |
| Removes a user meta from an object meta to which it is attached. More... | |
| gboolean | nvds_get_current_metadata_info (NvDsBatchMeta *batch_meta) |
| A debugging function; prints current metadata information available after inference. More... | |
| gpointer | nvds_batch_meta_copy_func (gpointer data, gpointer user_data) |
| Copies or transforms meta data from one buffer to another. More... | |
| void | nvds_batch_meta_release_func (gpointer data, gpointer user_data) |
| Releases metadata from a batch meta. More... | |
| NvDsFrameMeta * | nvds_get_nth_frame_meta (NvDsFrameMetaList *frame_meta_list, guint index) |
| Returns a pointer to a specified frame meta in the frame meta list. More... | |
| void | nvds_clear_frame_meta_list (NvDsBatchMeta *batch_meta, NvDsFrameMetaList *meta_list) |
| Removes all of the frame metadata attached to a batch meta. More... | |
| void | nvds_clear_obj_meta_list (NvDsFrameMeta *frame_meta, NvDsObjectMetaList *meta_list) |
| Removes all the object metadata attached to a frame meta. More... | |
| void | nvds_clear_classifier_meta_list (NvDsObjectMeta *obj_meta, NvDsClassifierMetaList *meta_list) |
| Removes all of the classifier metadata attached to an object meta. More... | |
| void | nvds_clear_label_info_meta_list (NvDsClassifierMeta *classifier_meta, NvDsLabelInfoList *meta_list) |
| Removes all of the label info metadata attached to a classifier meta. More... | |
| void | nvds_clear_display_meta_list (NvDsFrameMeta *frame_meta, NvDisplayMetaList *meta_list) |
| Removes all of the display metadata attached to a frame meta. More... | |
| void | nvds_clear_batch_user_meta_list (NvDsBatchMeta *batch_meta, NvDsUserMetaList *meta_list) |
| Removes all of the user metadata attached to the batch meta. More... | |
| void | nvds_clear_frame_user_meta_list (NvDsFrameMeta *frame_meta, NvDsUserMetaList *meta_list) |
| Removes all of the user metadata attached to the frame meta. More... | |
| void | nvds_clear_obj_user_meta_list (NvDsObjectMeta *object_meta, NvDsUserMetaList *meta_list) |
| Removes all of the user metadata attached to an object meta. More... | |
| NvDsMetaList * | nvds_clear_meta_list (NvDsBatchMeta *batch_meta, NvDsMetaList *meta_list, NvDsMetaPool *meta_pool) |
| Removes all of the metadata elements attached to a metadata list. More... | |
| void | nvds_copy_frame_meta (NvDsFrameMeta *src_frame_meta, NvDsFrameMeta *dst_frame_meta) |
| Makes a deep copy of a frame meta to another frame meta. More... | |
| void | nvds_copy_obj_meta (NvDsObjectMeta *src_object_meta, NvDsObjectMeta *dst_object_meta) |
| Makes a deep copy of an object meta to another object meta. More... | |
| void | nvds_copy_classifier_meta (NvDsClassifierMeta *src_classifier_meta, NvDsClassifierMeta *dst_classifier_meta) |
| Makes a deep copy of a classifier meta to another classifier meta. More... | |
| void | nvds_copy_label_info_meta (NvDsLabelInfo *src_label_info, NvDsLabelInfo *dst_label_info) |
| Makes a deep copy of a label info meta to another label info meta. More... | |
| void | nvds_copy_display_meta (NvDsDisplayMeta *src_display_meta, NvDsDisplayMeta *dst_display_meta) |
| Makes a deep copy of a display meta to another display meta. More... | |
| void | nvds_copy_batch_user_meta_list (NvDsUserMetaList *src_user_meta_list, NvDsBatchMeta *dst_batch_meta) |
| Makes a deep copy of a user meta list to the user meta list in a specified batch meta. More... | |
| void | nvds_copy_frame_user_meta_list (NvDsUserMetaList *src_user_meta_list, NvDsFrameMeta *dst_frame_meta) |
| Makes a deep copy of a source user meta list to the user meta list in a specified frame meta. More... | |
| void | nvds_copy_obj_user_meta_list (NvDsUserMetaList *src_user_meta_list, NvDsObjectMeta *dst_object_meta) |
| Makes a deep copy of a source user meta list to the user meta list in a specified object meta. More... | |
| void | nvds_copy_display_meta_list (NvDisplayMetaList *src_display_meta_list, NvDsFrameMeta *dst_frame_meta) |
| Makes a deep copy of a source display meta list to the display meta list in a specified frame meta. More... | |
| void | nvds_copy_frame_meta_list (NvDsFrameMetaList *src_frame_meta_list, NvDsBatchMeta *dst_batch_meta) |
| Makes a deep copy of a source frame meta list to the frame meta list in a specified batch meta. More... | |
| void | nvds_copy_obj_meta_list (NvDsObjectMetaList *src_obj_meta_list, NvDsFrameMeta *dst_frame_meta) |
| Makes a deep copy of a source object meta list to the object meta list in a specified frame meta. More... | |
| void | nvds_copy_classification_list (NvDsClassifierMetaList *src_classifier_meta_list, NvDsObjectMeta *dst_object_meta) |
| Makes a deep copy of a source classifier meta list to the classifier meta list in a specified object meta. More... | |
| void | nvds_copy_label_info_list (NvDsLabelInfoList *src_label_info_list, NvDsClassifierMeta *dst_classifier_meta) |
| Makes a deep copy of a source label info meta list to the label info meta list in a specified classifier meta. More... | |
| NvDsMetaType | nvds_get_user_meta_type (gchar *meta_descriptor) |
| Generates a unique user metadata type from a specified string describing user-specific metadata. More... | |
