vaapi.cpp File Reference

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

#include <fcntl.h>
#include <format>
#include <sstream>
#include <string>
#include <libavcodec/avcodec.h>
#include <libavutil/pixdesc.h>
#include <va/va.h>
#include <va/va_drm.h>
#include "graphics.h"
#include "misc.h"
#include "src/config.h"
#include "src/logging.h"
#include "src/platform/common.h"
#include "src/utility.h"
#include "src/video.h"

Include dependency graph for vaapi.cpp:

Classes
struct	va::AVVAAPIDeviceContext
struct	va::DRMPRIMESurfaceDescriptor
class	va::va_ram_t
class	va::va_t
class	va::va_vram_t
struct	va::VAAPIDevicePriv

Typedefs
typedef struct va::AVVAAPIDeviceContext	va::AVVAAPIDeviceContext
using	va::display_t = util::safe_ptr_v2<void, VAStatus, vaTerminate>
typedef struct va::VAAPIDevicePriv	va::VAAPIDevicePriv
using	va::VADisplay = void *
using	va::VAGenericID = unsigned int
using	va::VAStatus = int
using	va::VASurfaceID = VAGenericID

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)
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)
int	va::vaapi_init_avcodec_hardware_input_buffer (platf::avcodec_encode_device_t *encode_device, AVBufferRef **hw_device_buf)
bool	va::validate (int fd)
VAStatus	vaSyncBuffer (VADisplay dpy, VABufferID buf_id, uint64_t timeout_ns)

Variables
constexpr auto	va::EXPORT_SURFACE_SEPARATE_LAYERS = 0x0004
constexpr auto	va::EXPORT_SURFACE_WRITE_ONLY = 0x0002
constexpr auto	va::SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2 = 0x40000000

Detailed Description

Definitions for VA-API hardware accelerated capture.

Typedef Documentation

AVVAAPIDeviceContext

typedef struct va::AVVAAPIDeviceContext va::AVVAAPIDeviceContext

VAAPI connection details.

Allocated as AVHWDeviceContext.hwctx

VAAPIDevicePriv

typedef struct va::VAAPIDevicePriv va::VAAPIDevicePriv

This is a private structure of FFmpeg, I need this to manually create a VAAPI hardware context

xdisplay will not be used internally by FFmpeg

Function Documentation

make_avcodec_encode_device()

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