vaapi_context Struct Reference

This structure is used to share data between the FFmpeg library and the client video application. More...

#include <vaapi.h>

Data Fields
void *	display
	Window system dependent data. More...
uint32_t	config_id
	Configuration ID. More...
uint32_t	context_id
	Context ID (video decode pipeline) More...
attribute_deprecated uint32_t	pic_param_buf_id
	VAPictureParameterBuffer ID. More...
attribute_deprecated uint32_t	iq_matrix_buf_id
	VAIQMatrixBuffer ID. More...
attribute_deprecated uint32_t	bitplane_buf_id
	VABitPlaneBuffer ID (for VC-1 decoding) More...
attribute_deprecated uint32_t *	slice_buf_ids
	Slice parameter/data buffer IDs. More...
attribute_deprecated unsigned int	n_slice_buf_ids
	Number of effective slice buffer IDs to send to the HW. More...
attribute_deprecated unsigned int	slice_buf_ids_alloc
	Size of pre-allocated slice_buf_ids. More...
attribute_deprecated void *	slice_params
	Pointer to VASliceParameterBuffers. More...
attribute_deprecated unsigned int	slice_param_size
	Size of a VASliceParameterBuffer element. More...
attribute_deprecated unsigned int	slice_params_alloc
	Size of pre-allocated slice_params. More...
attribute_deprecated unsigned int	slice_count
	Number of slices currently filled in. More...
attribute_deprecated const uint8_t *	slice_data
	Pointer to slice data buffer base. More...
attribute_deprecated uint32_t	slice_data_size
	Current size of slice data. More...

Detailed Description

This structure is used to share data between the FFmpeg library and the client video application.

This shall be zero-allocated and available as AVCodecContext.hwaccel_context. All user members can be set once during initialization or through each AVCodecContext.get_buffer() function call. In any case, they must be valid prior to calling decoding functions.

Definition at line 52 of file vaapi.h.

Field Documentation

void* vaapi_context::display

Window system dependent data.

• encoding: unused
• decoding: Set by user

Definition at line 59 of file vaapi.h.

Referenced by ff_vaapi_context_init(), and vaapi_decode_init().

uint32_t vaapi_context::config_id

Configuration ID.

• encoding: unused
• decoding: Set by user

Definition at line 67 of file vaapi.h.

Referenced by ff_vaapi_context_init(), and vaapi_decode_init().

uint32_t vaapi_context::context_id

Context ID (video decode pipeline)

• encoding: unused
• decoding: Set by user

Definition at line 75 of file vaapi.h.

Referenced by ff_vaapi_context_init(), and vaapi_decode_init().

attribute_deprecated uint32_t vaapi_context::pic_param_buf_id

VAPictureParameterBuffer ID.

• encoding: unused
• decoding: Set by libavcodec

Definition at line 85 of file vaapi.h.

attribute_deprecated uint32_t vaapi_context::iq_matrix_buf_id

VAIQMatrixBuffer ID.

• encoding: unused
• decoding: Set by libavcodec

Definition at line 94 of file vaapi.h.

attribute_deprecated uint32_t vaapi_context::bitplane_buf_id

VABitPlaneBuffer ID (for VC-1 decoding)

• encoding: unused
• decoding: Set by libavcodec

Definition at line 103 of file vaapi.h.

attribute_deprecated uint32_t* vaapi_context::slice_buf_ids

Slice parameter/data buffer IDs.

• encoding: unused
• decoding: Set by libavcodec

Definition at line 112 of file vaapi.h.

Referenced by ff_vaapi_commit_slices().

attribute_deprecated unsigned int vaapi_context::n_slice_buf_ids

Number of effective slice buffer IDs to send to the HW.

• encoding: unused
• decoding: Set by libavcodec

Definition at line 121 of file vaapi.h.

attribute_deprecated unsigned int vaapi_context::slice_buf_ids_alloc

Size of pre-allocated slice_buf_ids.

• encoding: unused
• decoding: Set by libavcodec

Definition at line 130 of file vaapi.h.

attribute_deprecated void* vaapi_context::slice_params

Pointer to VASliceParameterBuffers.

• encoding: unused
• decoding: Set by libavcodec

Definition at line 139 of file vaapi.h.

Referenced by ff_vaapi_alloc_slice().

attribute_deprecated unsigned int vaapi_context::slice_param_size

Size of a VASliceParameterBuffer element.

• encoding: unused
• decoding: Set by libavcodec

Definition at line 148 of file vaapi.h.

attribute_deprecated unsigned int vaapi_context::slice_params_alloc

Size of pre-allocated slice_params.

• encoding: unused
• decoding: Set by libavcodec

Definition at line 157 of file vaapi.h.

attribute_deprecated unsigned int vaapi_context::slice_count

Number of slices currently filled in.

• encoding: unused
• decoding: Set by libavcodec

Definition at line 166 of file vaapi.h.

attribute_deprecated const uint8_t* vaapi_context::slice_data

Pointer to slice data buffer base.

• encoding: unused
• decoding: Set by libavcodec

Definition at line 174 of file vaapi.h.

attribute_deprecated uint32_t vaapi_context::slice_data_size

Current size of slice data.

• encoding: unused
• decoding: Set by libavcodec

Definition at line 183 of file vaapi.h.

---

The documentation for this struct was generated from the following file:

• libavcodec/vaapi.h