FFmpeg: libavfilter/dnn/queue.c File Reference

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Data Structures | Functions

queue.c File Reference

#include <stdio.h>
#include "queue.h"
#include "libavutil/mem.h"

Go to the source code of this file.

Data Structures

struct QueueEntry

struct Queue

Linear double-ended data structure. More...

Functions

static QueueEntry * create_entry (void *val)

Queue * ff_queue_create (void)

Create a Queue instance. More...

void ff_queue_destroy (Queue *q)

Destroy the Queue instance. More...

size_t ff_queue_size (Queue *q)

Return the length of the Queue. More...

void * ff_queue_peek_front (Queue *q)

Return a pointer to the data at the head of the queue. More...

void * ff_queue_peek_back (Queue *q)

Return a pointer to the data at the tail of the queue. More...

int ff_queue_push_front (Queue *q, void *v)

Add data to the head of the queue. More...

int ff_queue_push_back (Queue *q, void *v)

Add data to the tail of the queue. More...

void * ff_queue_pop_front (Queue *q)

Remove and free first element from the Queue. More...

void * ff_queue_pop_back (Queue *q)

Remove and free last element from the Queue. More...

Function Documentation

◆ create_entry()

static QueueEntry* create_entry ( void * val )

inlinestatic

Definition at line 39 of file queue.c.

Referenced by ff_queue_create(), ff_queue_push_back(), and ff_queue_push_front().

◆ ff_queue_create()

Queue* ff_queue_create ( void )

Create a Queue instance.

It initializes the length of the Queue as 0.

Returns: Pointer to the Queue

Return values: NULL if allocation fails

Definition at line 47 of file queue.c.

Referenced by dnn_load_model_tf(), dnn_load_model_th(), ff_safe_queue_create(), and init_model_ov().

◆ ff_queue_destroy()

void ff_queue_destroy ( Queue * q )

Destroy the Queue instance.

It also frees all elements of the Queue.

Definition at line 72 of file queue.c.

Referenced by dnn_free_model_ov(), dnn_free_model_tf(), dnn_free_model_th(), and ff_safe_queue_destroy().

◆ ff_queue_size()

size_t ff_queue_size ( Queue * q )

Return the length of the Queue.

Definition at line 88 of file queue.c.

Referenced by dnn_flush_tf(), dnn_flush_th(), dnn_free_model_ov(), dnn_free_model_tf(), dnn_free_model_th(), execute_model_ov(), execute_model_tf(), execute_model_th(), ff_safe_queue_pop_front(), ff_safe_queue_size(), and get_output_ov().

◆ ff_queue_peek_front()

void* ff_queue_peek_front ( Queue * q )

Return a pointer to the data at the head of the queue.

Return values: NULL if null pointer was passed or queue is empty

Definition at line 93 of file queue.c.

Referenced by execute_model_ov(), execute_model_tf(), execute_model_th(), ff_dnn_get_result_common(), and fill_model_input_ov().

◆ ff_queue_peek_back()

void* ff_queue_peek_back ( Queue * q )

Return a pointer to the data at the tail of the queue.

Return values: NULL if null pointer was passed or queue is empty

Definition at line 101 of file queue.c.

◆ ff_queue_push_front()

int ff_queue_push_front ( Queue * q,

void * v

)

Add data to the head of the queue.

It increases the length of Queue by one.

Parameters: q pointer to the Queue.

v data to be added

Returns: The length of the Queue

Return values: 0 if the pointer to queue is NULL

-1 if new entry cannot be created

Definition at line 109 of file queue.c.

Referenced by ff_safe_queue_push_front().

◆ ff_queue_push_back()

int ff_queue_push_back ( Queue * q,

void * v

)

Add data to the tail of the queue.

It increases the length of Queue by one.

Parameters: q pointer to the Queue

v data to be added

Returns: The length of the Queue

Return values: 0 if the pointer to queue is NULL

-1 if new entry cannot be created

Definition at line 130 of file queue.c.

Referenced by dnn_execute_model_tf(), dnn_execute_model_th(), extract_lltask_from_task(), ff_safe_queue_push_back(), and get_output_ov().

◆ ff_queue_pop_front()

void* ff_queue_pop_front ( Queue * q )

Remove and free first element from the Queue.

It shrinks the length of Queue by one.

Parameters: q pointer to the Queue.

Returns: The value of first element as void. If a null pointer or empty queue is passed, it returns NULL

Definition at line 151 of file queue.c.

Referenced by dnn_free_model_ov(), dnn_free_model_tf(), dnn_free_model_th(), ff_dnn_get_result_common(), ff_safe_queue_pop_front(), fill_model_input_ov(), fill_model_input_tf(), and fill_model_input_th().

◆ ff_queue_pop_back()

void* ff_queue_pop_back ( Queue * q )

Remove and free last element from the Queue.

It shrinks the length of Queue by one.

Parameters: q pointer to the Queue.

Returns: The value of last element as void. If a null pointer or empty queue is passed, it returns NULL

Definition at line 172 of file queue.c.

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