videotoolbox.h File Reference

#include <stdint.h>
#include <VideoToolbox/VideoToolbox.h>
#include "libavcodec/avcodec.h"

Go to the source code of this file.

Data Structures
struct	AVVideotoolboxContext
	This struct holds all the information that needs to be passed between the caller and libavcodec for initializing Videotoolbox decoding. More...

Macros
#define	Picture   QuickdrawPicture

Functions
AVVideotoolboxContext *	av_videotoolbox_alloc_context (void)
	Allocate and initialize a Videotoolbox context. More...
int	av_videotoolbox_default_init (AVCodecContext *avctx)
	This is a convenience function that creates and sets up the Videotoolbox context using an internal implementation. More...
int	av_videotoolbox_default_init2 (AVCodecContext *avctx, AVVideotoolboxContext *vtctx)
	This is a convenience function that creates and sets up the Videotoolbox context using an internal implementation. More...
void	av_videotoolbox_default_free (AVCodecContext *avctx)
	This function must be called to free the Videotoolbox context initialized with av_videotoolbox_default_init(). More...

Detailed Description

Public libavcodec Videotoolbox header.

Definition in file videotoolbox.h.

Macro Definition Documentation

Picture

#define Picture   QuickdrawPicture

Definition at line 34 of file videotoolbox.h.

Function Documentation

av_videotoolbox_alloc_context()

AVVideotoolboxContext* av_videotoolbox_alloc_context

(

void

)

Allocate and initialize a Videotoolbox context.

This function should be called from the get_format() callback when the caller selects the AV_PIX_FMT_VIDETOOLBOX format. The caller must then create the decoder object (using the output callback provided by libavcodec) that will be used for Videotoolbox-accelerated decoding.

When decoding with Videotoolbox is finished, the caller must destroy the decoder object and free the Videotoolbox context using av_free().

Returns

the newly allocated context or NULL on failure

Referenced by videotoolbox_init().

av_videotoolbox_default_init()

int av_videotoolbox_default_init

(

AVCodecContext *

avctx

)

This is a convenience function that creates and sets up the Videotoolbox context using an internal implementation.

Parameters

avctx

the corresponding codec context

Returns

>= 0 on success, a negative AVERROR code on failure

Referenced by videotoolbox_init().

av_videotoolbox_default_init2()

int av_videotoolbox_default_init2	(	AVCodecContext *	avctx,
		AVVideotoolboxContext *	vtctx
	)

This is a convenience function that creates and sets up the Videotoolbox context using an internal implementation.

Parameters

avctx	the corresponding codec context
vtctx	the Videotoolbox context to use

Returns

>= 0 on success, a negative AVERROR code on failure

Referenced by videotoolbox_init().

av_videotoolbox_default_free()

void av_videotoolbox_default_free

(

AVCodecContext *

avctx

)

This function must be called to free the Videotoolbox context initialized with av_videotoolbox_default_init().

Parameters

avctx

the corresponding codec context

Referenced by videotoolbox_uninit().