Global Namespace#
Overview#
// namespaces namespace gstgva; namespace gstgva::region_of_interest; namespace gstgva::tensor; namespace gstgva::video_frame; // typedefs typedef typedefG_BEGIN_DECLS struct _GstAnalyticsMtd GstAnalyticsKeypointMtd; typedef struct _GstAnalyticsMtd GstAnalyticsKeypointSkeletonMtd; typedef struct _GstAnalyticsMtd GstAnalyticsKeypointGroupMtd; typedef typedefG_BEGIN_DECLS struct _GstGVAJSONMeta GstGVAJSONMeta; typedef struct _GstGVATensorMeta GstGVATensorMeta; // enums enum GVALayout; enum GVAPrecision; // structs struct GstAnalyticsKeypoint; struct GstAnalyticsKeypointPair; struct GstGVAAudioEventMeta; struct _GstGVAJSONMeta; struct _GstGVATensorMeta; // global functions GST_ANALYTICS_META_API GstAnalyticsMtdType gst_analytics_keypoint_mtd_get_mtd_type(void); GST_ANALYTICS_META_API gboolean gst_analytics_keypoint_mtd_get( const GstAnalyticsKeypointMtd* handle, GstAnalyticsKeypoint* keypoint ); GST_ANALYTICS_META_API gboolean gst_analytics_relation_meta_add_keypoint_mtd( GstAnalyticsRelationMeta* instance, const GstAnalyticsKeypoint* keypoint, GstAnalyticsKeypointMtd* keypoint_mtd ); GST_ANALYTICS_META_API GstAnalyticsMtdType gst_analytics_keypoint_skeleton_mtd_get_mtd_type(void); GST_ANALYTICS_META_API gsize gst_analytics_keypoint_skeleton_mtd_get_count(const GstAnalyticsKeypointSkeletonMtd* handle); GST_ANALYTICS_META_API gboolean gst_analytics_keypoint_skeleton_mtd_get( const GstAnalyticsKeypointSkeletonMtd* handle, GstAnalyticsKeypointPair* segment, gsize index ); GST_ANALYTICS_META_API gboolean gst_analytics_relation_meta_add_keypoint_skeleton_mtd( GstAnalyticsRelationMeta* instance, const gsize skeleton_count, const GstAnalyticsKeypointPair* skeletons, GstAnalyticsKeypointSkeletonMtd* keypoint_skeleton_mtd ); GST_ANALYTICS_META_API GstAnalyticsMtdType gst_analytics_keypointgroup_mtd_get_mtd_type(void); GST_ANALYTICS_META_API gsize gst_analytics_keypointgroup_mtd_get_count(const GstAnalyticsKeypointGroupMtd* handle); GST_ANALYTICS_META_API gboolean gst_analytics_keypointgroup_mtd_get_keypoint_mtd( const GstAnalyticsKeypointGroupMtd* handle, GstAnalyticsKeypointMtd* keypoint_mtd, gsize index ); GST_ANALYTICS_META_API gboolean gst_analytics_relation_meta_add_keypointgroup_mtd( GstAnalyticsRelationMeta* instance, const gsize keypoint_count, const GstAnalyticsKeypointMtd* keypoints, GstAnalyticsKeypointGroupMtd* keypoints_mtd ); GST_ANALYTICS_META_API gboolean gst_analytics_relation_meta_set_keypointgroup_relations( GstAnalyticsRelationMeta* instance, GstAnalyticsKeypointGroupMtd* keypoint_group, GstAnalyticsClsMtd* keypoint_names, GstAnalyticsKeypointSkeletonMtd* keypoint_skeleton ); GType gst_gva_audio_event_meta_api_get_type(void); const GstMetaInfo* gst_gva_audio_event_meta_get_info(void); GstGVAAudioEventMeta* gst_gva_buffer_get_audio_event_meta_id( GstBuffer* buffer, gint id ); GstGVAAudioEventMeta* gst_gva_buffer_add_audio_event_meta( GstBuffer* buffer, const gchar* event_type, gulong start_timestamp, gulong end_timestamp ); GstGVAAudioEventMeta* gst_gva_buffer_add_audio_event_meta_id( GstBuffer* buffer, GQuark event_type, gulong start_timestamp, gulong end_timestamp ); void gst_gva_audio_event_meta_add_param( GstGVAAudioEventMeta* meta, GstStructure* s ); GstStructure* gst_gva_audio_event_meta_get_param( GstGVAAudioEventMeta* meta, const gchar* name ); const GstMetaInfo* gst_gva_json_meta_get_info(void); GType gst_gva_json_meta_api_get_type(void); gchar* get_json_message(GstGVAJSONMeta* meta); void set_json_message(GstGVAJSONMeta* meta, const gchar* message); const void* gva_get_tensor_data(GstStructure* s, gsize* nbytes); const GstMetaInfo* gst_gva_tensor_meta_get_info(void); GType gst_gva_tensor_meta_api_get_type(void); GstGVATensorMeta* find_tensor_meta( GstBuffer* buffer, const char* model_name, const char* output_layer ); GstGVATensorMeta* find_tensor_meta_ext( GstBuffer* buffer, const char* model_name, const char* output_layer, const char* element_id );
Detailed Documentation#
Typedefs#
typedef typedefG_BEGIN_DECLS struct _GstAnalyticsMtd GstAnalyticsKeypointMtd
GstAnalyticsKeypointMtd: @id: Instance identifier. @meta: Instance of #GstAnalyticsRelationMeta where the analysis-metadata identified by @id is stored.
Handle to GstAnalyticsKeypoint data structure. This type is generally expected to be allocated on the stack.
Since: 1.26
typedef struct _GstAnalyticsMtd GstAnalyticsKeypointSkeletonMtd
GstAnalyticsKeypointSkeletonMtd: @id: Instance identifier. @meta: Instance of #GstAnalyticsRelationMeta where the analysis-metadata identified by @id is stored.
Handle containing data required to use gst_analytics_keypoint_skeleton_mtd APIs. This type is generally expected to be allocated on the stack.
Since: 1.26
typedef struct _GstAnalyticsMtd GstAnalyticsKeypointGroupMtd
GstAnalyticsKeypointGroupMtd: @id: Instance identifier. @meta: Instance of #GstAnalyticsRelationMeta where the analysis-metadata identified by @id is stored.
Handle containing data required to use gst_analytics_keypointgroup_mtd APIs. This type is generally expected to be allocated on the stack.
Since: 1.26
Global Functions#
const GstMetaInfo* gst_gva_json_meta_get_info(void)
This function registers, if needed, and returns GstMetaInfo for _GstGVAJSONMeta.
Returns:
const GstMetaInfo* for registered type
GType gst_gva_json_meta_api_get_type(void)
This function registers, if needed, and returns a GType for api “GstGVAJSONMetaAPI” and associate it with GVA_JSON_META_TAG tag.
Returns:
GType type
gchar* get_json_message(GstGVAJSONMeta* meta)
This function returns message field of _GstGVAJSONMeta.
Parameters:
meta |
_GstGVAJSONMeta* to retrieve message of |
Returns:
C-style string with message
void set_json_message(GstGVAJSONMeta* meta, const gchar* message)
This function sets message field of _GstGVAJSONMeta.
Parameters:
meta |
_GstGVAJSONMeta* to set message |
message |
message |
Returns:
void
const void* gva_get_tensor_data(GstStructure* s, gsize* nbytes)
This function returns a pointer to the fixed array of tensor bytes.
Parameters:
s |
GstStructure* to get tensor from. It’s assumed that tensor data is stored in “data_buffer” field |
nbytes |
pointer to the location to store the number of bytes in returned array |
Returns:
void* to tensor data as bytes, NULL if s has no “data_buffer” field
const GstMetaInfo* gst_gva_tensor_meta_get_info(void)
This function registers, if needed, and returns GstMetaInfo for _GstGVATensorMeta.
Returns:
GstMetaInfo* for registered type
GType gst_gva_tensor_meta_api_get_type(void)
This function registers, if needed, and returns a GType for api “GstGVATensorMetaAPI” and associate it with GVA_TENSOR_META_TAG tag.
Returns:
GType type
GstGVATensorMeta* find_tensor_meta( GstBuffer* buffer, const char* model_name, const char* output_layer )
This function searches for first _GstGVATensorMeta instance that satisfies passed parameters.
Parameters:
buffer |
GstBuffer* that is searched for metadata |
model_name |
substring that should be in _GstGVATensorMeta instance’s model_name |
output_layer |
substring that should be in _GstGVATensorMeta instance’s layer_name |
Returns:
GstGVATensorMeta* for found instance or NULL if none are found
GstGVATensorMeta* find_tensor_meta_ext( GstBuffer* buffer, const char* model_name, const char* output_layer, const char* element_id )
This function searches for first _GstGVATensorMeta instance that satisfies passed parameters.
Parameters:
buffer |
GstBuffer* that is searched for metadata |
model_name |
substring that should be in _GstGVATensorMeta instance’s model_name |
output_layer |
substring that should be in _GstGVATensorMeta instance’s layer_name |
element_id |
element_id substring that should be in _GstGVATensorMeta instance’s element_id |
Returns:
GstGVATensorMeta* for found instance or NULL if none are found