options.c File Reference

Options definition for AVCodecContext. More...

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

Macros
#define	alloc_and_copy_or_fail(obj, size, pad)
#define	FOFFSET(x)   offsetof(AVFrame,x)
#define	SROFFSET(x)   offsetof(AVSubtitleRect,x)

Functions
int	avcodec_get_context_defaults3 (AVCodecContext *s, const AVCodec *codec)
AVCodecContext *	avcodec_alloc_context3 (const AVCodec *codec)
	Allocate an AVCodecContext and set its fields to default values. More...
void	avcodec_free_context (AVCodecContext **pavctx)
	Free the codec context and everything associated with it and write NULL to the provided pointer.
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...
const AVClass *	avcodec_get_frame_class (void)
	Get the AVClass for AVFrame. More...
const AVClass *	avcodec_get_subtitle_rect_class (void)
	Get the AVClass for AVSubtitleRect. More...

Detailed Description

Options definition for AVCodecContext.

Macro Definition Documentation

alloc_and_copy_or_fail

#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); \
    }