options.c File Reference

Options definition for AVCodecContext. More...

#include "avcodec.h"
#include "internal.h"
#include "libavutil/avassert.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include <float.h>
#include <string.h>
#include "options_table.h"

Go to the source code of this file.

Macros
#define	alloc_and_copy_or_fail(obj, size, pad)

Functions
static const char *	context_to_name (void *ptr)
static void *	codec_child_next (void *obj, void *prev)
static const AVClass *	codec_child_class_next (const AVClass *prev)
int	avcodec_get_context_defaults3 (AVCodecContext *s, const AVCodec *codec)
	Set the fields of the given AVCodecContext to default values corresponding to the given codec (defaults may be codec-dependent). More...
AVCodecContext *	avcodec_alloc_context3 (const AVCodec *codec)
	Allocate an AVCodecContext and set its fields to default values. More...
int	avcodec_copy_context (AVCodecContext *dest, const AVCodecContext *src)
	Copy the settings of the source AVCodecContext into the destination AVCodecContext. More...
const AVClass *	avcodec_get_class (void)
	Get the AVClass for AVCodecContext. More...

Variables
static const AVClass	av_codec_context_class

Detailed Description

Options definition for AVCodecContext.

Definition in file options.c.

Macro Definition Documentation

#define alloc_and_copy_or_fail	(		obj,
			size,
			pad
	)

Value:

if (src->obj && size > 0) { \
        dest->obj = av_malloc(size + pad); \
        if (!dest->obj) \
            goto fail; \
        memcpy(dest->obj, src->obj, size); \
        if (pad) \
            memset(((uint8_t *) dest->obj) + size, 0, pad); \
    }

Referenced by avcodec_copy_context().

Function Documentation

static const AVClass* codec_child_class_next ( const AVClass *  prev )

static

Definition at line 54 of file options.c.

static void* codec_child_next ( void *  obj, void *  prev  )

static

Definition at line 46 of file options.c.

static const char* context_to_name ( void *  ptr )

static

Definition at line 37 of file options.c.

Variable Documentation

const AVClass av_codec_context_class

static

Initial value:

= {
    .class_name              = "AVCodecContext",
    .item_name               = context_to_name,
    .option                  = options,
    .version                 = LIBAVUTIL_VERSION_INT,
    .log_level_offset_offset = 0x42,
    .child_next              = codec_child_next,
    .child_class_next        = codec_child_class_next,
}

Definition at line 70 of file options.c.

Referenced by avcodec_get_class(), and avcodec_get_context_defaults3().