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buffer.c File Reference
#include <stdatomic.h>
#include <stdint.h>
#include <string.h>
#include "buffer_internal.h"
#include "common.h"
#include "mem.h"
#include "thread.h"

Go to the source code of this file.


AVBufferRefav_buffer_create (uint8_t *data, int size, void(*free)(void *opaque, uint8_t *data), void *opaque, int flags)
 Create an AVBuffer from an existing array. More...
void av_buffer_default_free (void *opaque, uint8_t *data)
 Default free callback, which calls av_free() on the buffer data. More...
AVBufferRefav_buffer_alloc (int size)
 Allocate an AVBuffer of the given size using av_malloc(). More...
AVBufferRefav_buffer_allocz (int size)
 Same as av_buffer_alloc(), except the returned buffer will be initialized to zero. More...
AVBufferRefav_buffer_ref (AVBufferRef *buf)
 Create a new reference to an AVBuffer. More...
static void buffer_replace (AVBufferRef **dst, AVBufferRef **src)
void av_buffer_unref (AVBufferRef **buf)
 Free a given reference and automatically free the buffer if there are no more references to it. More...
int av_buffer_is_writable (const AVBufferRef *buf)
voidav_buffer_get_opaque (const AVBufferRef *buf)
int av_buffer_get_ref_count (const AVBufferRef *buf)
int av_buffer_make_writable (AVBufferRef **pbuf)
 Create a writable reference from a given buffer reference, avoiding data copy if possible. More...
int av_buffer_realloc (AVBufferRef **pbuf, int size)
 Reallocate a given buffer. More...
AVBufferPoolav_buffer_pool_init2 (int size, void *opaque, AVBufferRef *(*alloc)(void *opaque, int size), void(*pool_free)(void *opaque))
 Allocate and initialize a buffer pool with a more complex allocator. More...
AVBufferPoolav_buffer_pool_init (int size, AVBufferRef *(*alloc)(int size))
 Allocate and initialize a buffer pool. More...
static void buffer_pool_free (AVBufferPool *pool)
void av_buffer_pool_uninit (AVBufferPool **ppool)
 Mark the pool as being available for freeing. More...
static void pool_release_buffer (void *opaque, uint8_t *data)
static AVBufferRefpool_alloc_buffer (AVBufferPool *pool)
AVBufferRefav_buffer_pool_get (AVBufferPool *pool)
 Allocate a new AVBuffer, reusing an old buffer from the pool when available. More...

Function Documentation

static void buffer_replace ( AVBufferRef **  dst,
AVBufferRef **  src 

Definition at line 107 of file buffer.c.

Referenced by av_buffer_make_writable(), av_buffer_realloc(), and av_buffer_unref().

static void buffer_pool_free ( AVBufferPool pool)

Definition at line 258 of file buffer.c.

Referenced by av_buffer_pool_uninit(), and pool_release_buffer().

static void pool_release_buffer ( void opaque,
uint8_t data 

Definition at line 288 of file buffer.c.

Referenced by av_buffer_pool_get(), and pool_alloc_buffer().

static AVBufferRef* pool_alloc_buffer ( AVBufferPool pool)

Definition at line 307 of file buffer.c.

Referenced by av_buffer_pool_get().