Gets information such as the batch size and the number of streams.
Functions | |
| GstQuery * | gst_nvquery_batch_size_new (void) |
| Creates a new batch-size query, which can be used by elements to query the number of buffers in upstream elements' batched buffers. More... | |
| gboolean | gst_nvquery_is_batch_size (GstQuery *query) |
| Determines whether a query is a batch size query. More... | |
| void | gst_nvquery_batch_size_set (GstQuery *query, guint batch_size) |
| Sets the batch size, used by the elements responding to the batch size query. More... | |
| gboolean | gst_nvquery_batch_size_parse (GstQuery *query, guint *batch_size) |
| Parses batch size from a batch size query. More... | |
| GstQuery * | gst_nvquery_numStreams_size_new (void) |
| Creates a number of streams query, used by elements to query upstream the number of input sources. More... | |
| gboolean | gst_nvquery_is_numStreams_size (GstQuery *query) |
| Determines whether a query is a number-of-streams query. More... | |
| void | gst_nvquery_numStreams_size_set (GstQuery *query, guint numStreams_size) |
| Sets the number of input sources. More... | |
| gboolean | gst_nvquery_numStreams_size_parse (GstQuery *query, guint *numStreams_size) |
| Parses the number of streams from a number of streams query. More... | |
| GstQuery * | gst_nvquery_preprocess_poolsize_new (guint gieid) |
| Creates a preprocess poolsize query, used by elements to query preprocess element for the size of buffer pool. More... | |
| gboolean | gst_nvquery_is_preprocess_poolsize (GstQuery *query) |
| Determines whether a query is a preprocess poolsize query. More... | |
| void | gst_nvquery_preprocess_poolsize_set (GstQuery *query, guint preprocess_poolsize) |
| Sets the preprocess poolsize as a reponse to query. More... | |
| gboolean | gst_nvquery_preprocess_poolsize_parse (GstQuery *query, guint *preprocess_poolsize) |
| Parses the preprocess poolsize from a preprocess poolsize query. More... | |
| gboolean | gst_nvquery_preprocess_poolsize_gieid_parse (GstQuery *query, guint *gieId) |
| Parses the preprocess gie id from a preprocess poolsize query. More... | |
| gboolean | gst_nvquery_is_update_caps (GstQuery *query) |
| Checks if a query is update_caps query. More... | |
| void | gst_nvquery_parse_update_caps (GstQuery *query, guint *stream_index, const GValue *frame_rate) |
| Parses the update_caps query. More... | |
| gboolean | gst_nvquery_update_caps_peer_query (GstPad *srcpad, GstStructure *str) |
| Heterogeneous batching query for new streammux. More... | |
| GstQuery* gst_nvquery_batch_size_new | ( | void | ) |
Creates a new batch-size query, which can be used by elements to query the number of buffers in upstream elements' batched buffers.
| gboolean gst_nvquery_batch_size_parse | ( | GstQuery * | query, |
| guint * | batch_size | ||
| ) |
Parses batch size from a batch size query.
params[in] query A pointer to a batch size query. params[out] batch_size A pointer to an unsigned integer in which the batch size is stored.
| void gst_nvquery_batch_size_set | ( | GstQuery * | query, |
| guint | batch_size | ||
| ) |
Sets the batch size, used by the elements responding to the batch size query.
This function fails if the query is not a batch size query.
params[in] query A pointer to a batch size query. params[in] batch_size The batch size to be set.
| gboolean gst_nvquery_is_batch_size | ( | GstQuery * | query | ) |
Determines whether a query is a batch size query.
params[in] query A pointer to the query to be checked.
| gboolean gst_nvquery_is_numStreams_size | ( | GstQuery * | query | ) |
Determines whether a query is a number-of-streams query.
params[in] query A pointer to the query to be checked.
| gboolean gst_nvquery_is_preprocess_poolsize | ( | GstQuery * | query | ) |
Determines whether a query is a preprocess poolsize query.
params[in] query A pointer to the query to be checked.
| gboolean gst_nvquery_is_update_caps | ( | GstQuery * | query | ) |
Checks if a query is update_caps query.
params[in] query A pointer to a query.
| GstQuery* gst_nvquery_numStreams_size_new | ( | void | ) |
Creates a number of streams query, used by elements to query upstream the number of input sources.
| gboolean gst_nvquery_numStreams_size_parse | ( | GstQuery * | query, |
| guint * | numStreams_size | ||
| ) |
Parses the number of streams from a number of streams query.
params[in] query A pointer to a number-of-streams query. params[out] batch_size A pointer to an unsigned integer in which the number of streams is stored.
| void gst_nvquery_numStreams_size_set | ( | GstQuery * | query, |
| guint | numStreams_size | ||
| ) |
Sets the number of input sources.
This function is used by elements responding to a number of streams query. It fails if the query is not of the correct type.
params[in] query A pointer to a number-of-streams query. params[in] numStreams_size The number of input sources.
| void gst_nvquery_parse_update_caps | ( | GstQuery * | query, |
| guint * | stream_index, | ||
| const GValue * | frame_rate | ||
| ) |
Parses the update_caps query.
params[in] query A pointer to a update_caps query. params[out] stream_index A pointer to an unsigned integer in which the stream_index is stored. params[out] frame_rate A pointer to an GValue string in which the frame_rate is stored.
| gboolean gst_nvquery_preprocess_poolsize_gieid_parse | ( | GstQuery * | query, |
| guint * | gieId | ||
| ) |
Parses the preprocess gie id from a preprocess poolsize query.
params[in] query A pointer to a nv-preprocess-poolsize query. params[out] gieid A pointer to an unsigned integer in which the preprocess gie id is stored.
| GstQuery* gst_nvquery_preprocess_poolsize_new | ( | guint | gieid | ) |
Creates a preprocess poolsize query, used by elements to query preprocess element for the size of buffer pool.
params[in] gieid An unsigned integer in which the preprocess gie id is stored.
| gboolean gst_nvquery_preprocess_poolsize_parse | ( | GstQuery * | query, |
| guint * | preprocess_poolsize | ||
| ) |
Parses the preprocess poolsize from a preprocess poolsize query.
params[in] query A pointer to a nv-preprocess-poolsize query. params[out] preprocess_poolsize A pointer to an unsigned integer in which the preprocess poolsize is stored.
| void gst_nvquery_preprocess_poolsize_set | ( | GstQuery * | query, |
| guint | preprocess_poolsize | ||
| ) |
Sets the preprocess poolsize as a reponse to query.
This function is used by elements responding to a number of streams query. It fails if the query is not of the correct type.
params[in] query A pointer to a nv-preprocess-poolsize query. params[in] preprocess_poolsize The preprocess poolsize to be set.
| gboolean gst_nvquery_update_caps_peer_query | ( | GstPad * | srcpad, |
| GstStructure * | str | ||
| ) |
Heterogeneous batching query for new streammux.
params[in] srcpad A pointer to a srcpad. params[in] str A pointer to a str of update_caps query.