vaapi.h File Reference

Declarations for VA-API hardware accelerated capture. More...

#include "misc.h"
#include "src/platform/common.h"

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Functions
std::unique_ptr< platf::avcodec_encode_device_t >	va::make_avcodec_encode_device (int width, int height, bool vram)
std::unique_ptr< platf::avcodec_encode_device_t >	va::make_avcodec_encode_device (int width, int height, file_t &&card, int offset_x, int offset_y, bool vram)
	Create AVCodec encode device.
std::unique_ptr< platf::avcodec_encode_device_t >	va::make_avcodec_encode_device (int width, int height, int offset_x, int offset_y, bool vram)
	Create AVCodec encode device.
bool	va::validate (int fd)
	Validate that the configured VAAPI device can be used.

Detailed Description

Declarations for VA-API hardware accelerated capture.

Function Documentation

make_avcodec_encode_device() [1/3]

std::unique_ptr< platf::avcodec_encode_device_t > va::make_avcodec_encode_device	(	int	width,
		int	height,
		bool	vram )

Width --> Width of the image Height --> Height of the image offset_x --> Horizontal offset of the image in the texture offset_y --> Vertical offset of the image in the texture file_t card --> The file descriptor of the render device used for encoding

Parameters

width	Frame or display width in pixels.
height	Frame or display height in pixels.
vram	Whether the image should use GPU memory instead of system memory.

Returns

Constructed AVCodec encode device object.

make_avcodec_encode_device() [2/3]

std::unique_ptr< platf::avcodec_encode_device_t > va::make_avcodec_encode_device	(	int	width,
		int	height,
		file_t &&	card,
		int	offset_x,
		int	offset_y,
		bool	vram )

Create AVCodec encode device.

Parameters

width	Frame or display width in pixels.
height	Frame or display height in pixels.
card	Video device path or render node used for VAAPI.
offset_x	Offset x.
offset_y	Offset y.
vram	Whether the image should use GPU memory instead of system memory.

Returns

Constructed AVCodec encode device object.

make_avcodec_encode_device() [3/3]

std::unique_ptr< platf::avcodec_encode_device_t > va::make_avcodec_encode_device	(	int	width,
		int	height,
		int	offset_x,
		int	offset_y,
		bool	vram )

Create AVCodec encode device.

Parameters

width	Frame or display width in pixels.
height	Frame or display height in pixels.
offset_x	Offset x.
offset_y	Offset y.
vram	Whether the image should use GPU memory instead of system memory.

Returns

Constructed AVCodec encode device object.

validate()

bool va::validate

(

int

fd

)

Validate that the configured VAAPI device can be used.

Parameters

fd	Native file descriptor to wrap or inspect.

Returns

True when the VAAPI device is usable for capture or encode.