Miam-Player  0.8.0
A nice music player

Files

file  vda.h
 

Classes

struct  vda_context
 
struct  AVVDAContext
 

Typedefs

typedef struct AVVDAContext AVVDAContext
 

Functions

int ff_vda_create_decoder (struct vda_context *vda_ctx, uint8_t *extradata, int extradata_size)
 
int ff_vda_destroy_decoder (struct vda_context *vda_ctx)
 
AVVDAContextav_vda_alloc_context (void)
 
int av_vda_default_init (AVCodecContext *avctx)
 
int av_vda_default_init2 (AVCodecContext *avctx, AVVDAContext *vdactx)
 
void av_vda_default_free (AVCodecContext *avctx)
 

Detailed Description

Typedef Documentation

◆ AVVDAContext

typedef struct AVVDAContext AVVDAContext

This struct holds all the information that needs to be passed between the caller and libavcodec for initializing VDA decoding. Its size is not a part of the public ABI, it must be allocated with av_vda_alloc_context() and freed with av_free().

Function Documentation

◆ av_vda_alloc_context()

AVVDAContext* av_vda_alloc_context ( void  )

Allocate and initialize a VDA context.

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

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

Returns
the newly allocated context or NULL on failure

◆ av_vda_default_free()

void av_vda_default_free ( AVCodecContext avctx)

This function must be called to free the VDA context initialized with av_vda_default_init().

Parameters
avctxthe corresponding codec context

◆ av_vda_default_init()

int av_vda_default_init ( AVCodecContext avctx)

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

Parameters
avctxthe corresponding codec context
Returns
>= 0 on success, a negative AVERROR code on failure

◆ av_vda_default_init2()

int av_vda_default_init2 ( AVCodecContext avctx,
AVVDAContext vdactx 
)

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

Parameters
avctxthe corresponding codec context
vdactxthe VDA context to use
Returns
>= 0 on success, a negative AVERROR code on failure

◆ ff_vda_create_decoder()

int ff_vda_create_decoder ( struct vda_context vda_ctx,
uint8_t *  extradata,
int  extradata_size 
)

Create the video decoder.

◆ ff_vda_destroy_decoder()

int ff_vda_destroy_decoder ( struct vda_context vda_ctx)

Destroy the video decoder.