FFmpeg: libavformat/async.c File Reference

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libavformat

Data Structures | Macros | Functions | Variables

async.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/error.h"
#include "libavutil/fifo.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/thread.h"
#include "url.h"
#include <stdint.h>

Go to the source code of this file.

Data Structures

struct RingBuffer

struct Context

Macros

#define BUFFER_CAPACITY (4 * 1024 * 1024)

@TODO support timeout support work with concatdec, hls More...

#define READ_BACK_CAPACITY (4 * 1024 * 1024)

#define SHORT_SEEK_THRESHOLD (256 * 1024)

#define OFFSET(x) offsetof(Context, x)

#define D AV_OPT_FLAG_DECODING_PARAM

Functions

static int ring_init (RingBuffer *ring, unsigned int capacity, int read_back_capacity)

static void ring_destroy (RingBuffer *ring)

static void ring_reset (RingBuffer *ring)

static int ring_size (RingBuffer *ring)

static int ring_space (RingBuffer *ring)

static int ring_read (RingBuffer *ring, void *dest, int buf_size)

static int wrapped_url_read (void *src, void *dst, size_t *size)

static int ring_write (RingBuffer *ring, URLContext *h, size_t size)

static int ring_size_of_read_back (RingBuffer *ring)

static int ring_drain (RingBuffer *ring, int offset)

static int async_check_interrupt (void *arg)

static void * async_buffer_task (void *arg)

static int async_open (URLContext *h, const char *arg, int flags, AVDictionary **options)

static int async_close (URLContext *h)

static int async_read_internal (URLContext *h, void *dest, int size)

static int async_read (URLContext *h, unsigned char *buf, int size)

static int64_t async_seek (URLContext *h, int64_t pos, int whence)

Variables

static const AVOption options []

static const AVClass async_context_class

const URLProtocol ff_async_protocol

Macro Definition Documentation

◆ BUFFER_CAPACITY

#define BUFFER_CAPACITY (4 * 1024 * 1024)

@TODO support timeout support work with concatdec, hls

Definition at line 44 of file async.c.

◆ READ_BACK_CAPACITY

#define READ_BACK_CAPACITY (4 * 1024 * 1024)

Definition at line 45 of file async.c.

◆ SHORT_SEEK_THRESHOLD

#define SHORT_SEEK_THRESHOLD (256 * 1024)

Definition at line 46 of file async.c.

◆ OFFSET

#define OFFSET ( x ) offsetof(Context, x)

Definition at line 475 of file async.c.

◆ D

#define D AV_OPT_FLAG_DECODING_PARAM

Definition at line 476 of file async.c.

Function Documentation

◆ ring_init()

static int ring_init ( RingBuffer * ring,

unsigned int capacity,

int read_back_capacity

)

static

Definition at line 83 of file async.c.

Referenced by async_open().

◆ ring_destroy()

static void ring_destroy ( RingBuffer * ring )

static

Definition at line 94 of file async.c.

Referenced by async_close(), and async_open().

◆ ring_reset()

static void ring_reset ( RingBuffer * ring )

static

Definition at line 99 of file async.c.

Referenced by async_buffer_task().

◆ ring_size()

static int ring_size ( RingBuffer * ring )

static

Definition at line 105 of file async.c.

Referenced by async_read_internal(), async_seek(), encode_plane(), encode_rgb_frame(), ring_drain(), and ring_read().

◆ ring_space()

static int ring_space ( RingBuffer * ring )

static

Definition at line 110 of file async.c.

Referenced by async_buffer_task(), and ring_write().

◆ ring_read()

static int ring_read ( RingBuffer * ring,

void * dest,

int buf_size

)

static

Definition at line 115 of file async.c.

Referenced by async_read_internal().

◆ wrapped_url_read()

static int wrapped_url_read ( void * src,

void * dst,

size_t * size

)

static

Definition at line 132 of file async.c.

Referenced by ring_write().

◆ ring_write()

static int ring_write ( RingBuffer * ring,

URLContext * h,

size_t size

)

static

Definition at line 145 of file async.c.

Referenced by async_buffer_task().

◆ ring_size_of_read_back()

static int ring_size_of_read_back ( RingBuffer * ring )

static

Definition at line 157 of file async.c.

Referenced by async_seek(), and ring_drain().

◆ ring_drain()

static int ring_drain ( RingBuffer * ring,

int offset

)

static

Definition at line 162 of file async.c.

Referenced by async_seek().

◆ async_check_interrupt()

static int async_check_interrupt ( void * arg )

static

Definition at line 170 of file async.c.

Referenced by async_buffer_task(), async_open(), async_read_internal(), and async_seek().

◆ async_buffer_task()

static void* async_buffer_task ( void * arg )

static

Definition at line 184 of file async.c.

Referenced by async_open().

◆ async_open()

static int async_open ( URLContext * h,

const char * arg,

int flags,

AVDictionary ** options

)

static

Definition at line 250 of file async.c.

◆ async_close()

static int async_close ( URLContext * h )

static

Definition at line 317 of file async.c.

◆ async_read_internal()

static int async_read_internal ( URLContext * h,

void * dest,

int size

)

static

Definition at line 340 of file async.c.

Referenced by async_read(), and async_seek().

◆ async_read()

static int async_read ( URLContext * h,

unsigned char * buf,

int size

)

static

Definition at line 387 of file async.c.

◆ async_seek()

static int64_t async_seek ( URLContext * h,

int64_t pos,

int whence

)

static

Definition at line 392 of file async.c.

Variable Documentation

◆ options

const AVOption options[]

static

Initial value:

= {

{NULL},

}

Definition at line 478 of file async.c.

Referenced by async_open().

◆ async_context_class

const AVClass async_context_class

static

Initial value:

= {

.class_name = "Async",

.item_name = av_default_item_name,

.option = options,

.version = LIBAVUTIL_VERSION_INT,

}

Definition at line 485 of file async.c.

◆ ff_async_protocol

const URLProtocol ff_async_protocol

Initial value:

= {

.name = "async",

.url_open2 = async_open,

.url_read = async_read,

.url_seek = async_seek,

.url_close = async_close,

.priv_data_size = sizeof(Context),

.priv_data_class = &async_context_class,

}

Definition at line 492 of file async.c.

static int async_close(URLContext *h)

Definition: async.c:317

static const AVOption options[]

Definition: async.c:478

Definition: async.c:56

async_context_class

static const AVClass async_context_class

Definition: async.c:485

LIBAVUTIL_VERSION_INT

#define LIBAVUTIL_VERSION_INT

Definition: version.h:85

#define NULL

Definition: coverity.c:32

av_default_item_name

const char * av_default_item_name(void *ptr)

Return the context name.

Definition: log.c:237

static int async_open(URLContext *h, const char *arg, int flags, AVDictionary **options)

Definition: async.c:250

static int async_read(URLContext *h, unsigned char *buf, int size)

Definition: async.c:387

static int64_t async_seek(URLContext *h, int64_t pos, int whence)

Definition: async.c:392

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