cv::gapi::wip::onevpl::CfgParam Struct Reference

Public class is using for creation of onevpl::GSource instances. More...

#include <opencv2/gapi/streaming/onevpl/cfg_params.hpp>

Public Types
using	name_t = std::string
using	value_t

Public Member Functions
	CfgParam (CfgParam &&src)
	CfgParam (const CfgParam &src)
	~CfgParam ()
const name_t &	get_name () const
const value_t &	get_value () const
bool	is_major () const
bool	operator!= (const CfgParam &rhs) const
bool	operator< (const CfgParam &rhs) const
CfgParam &	operator= (CfgParam &&src)
CfgParam &	operator= (const CfgParam &src)
bool	operator== (const CfgParam &rhs) const
std::string	to_string () const

Static Public Member Functions
static constexpr const char *	acceleration_mode_name ()
	acceleration_mode_name
template<typename ValueType>
static CfgParam	create (const std::string &name, ValueType &&value, bool is_major=true)
static CfgParam	create_acceleration_mode (const char *value)
static CfgParam	create_acceleration_mode (uint32_t value)
static CfgParam	create_decoder_id (const char *value)
static CfgParam	create_decoder_id (uint32_t value)
static CfgParam	create_frames_pool_size (size_t value)
static CfgParam	create_implementation (const char *value)
static CfgParam	create_implementation (uint32_t value)
static CfgParam	create_vpp_frames_pool_size (size_t value)
static CfgParam	create_vpp_in_crop_h (uint16_t value)
static CfgParam	create_vpp_in_crop_w (uint16_t value)
static CfgParam	create_vpp_in_crop_x (uint16_t value)
static CfgParam	create_vpp_in_crop_y (uint16_t value)
static CfgParam	create_vpp_in_height (uint16_t value)
static CfgParam	create_vpp_in_width (uint16_t value)
static CfgParam	create_vpp_out_chroma_format (uint16_t value)
static CfgParam	create_vpp_out_crop_h (uint16_t value)
static CfgParam	create_vpp_out_crop_w (uint16_t value)
static CfgParam	create_vpp_out_crop_x (uint16_t value)
static CfgParam	create_vpp_out_crop_y (uint16_t value)
static CfgParam	create_vpp_out_fourcc (uint32_t value)
static CfgParam	create_vpp_out_framerate_d (uint32_t value)
static CfgParam	create_vpp_out_framerate_n (uint32_t value)
static CfgParam	create_vpp_out_height (uint16_t value)
static CfgParam	create_vpp_out_pic_struct (uint16_t value)
static CfgParam	create_vpp_out_width (uint16_t value)
static constexpr const char *	decoder_id_name ()
	decoder_id_name
static constexpr const char *	frames_pool_size_name ()
	frames_pool_size_name
static constexpr const char *	implementation_name ()
static constexpr const char *	vpp_frames_pool_size_name ()
static constexpr const char *	vpp_in_crop_h_name ()
static constexpr const char *	vpp_in_crop_w_name ()
static constexpr const char *	vpp_in_crop_x_name ()
static constexpr const char *	vpp_in_crop_y_name ()
static constexpr const char *	vpp_in_height_name ()
static constexpr const char *	vpp_in_width_name ()
static constexpr const char *	vpp_out_chroma_format_name ()
static constexpr const char *	vpp_out_crop_h_name ()
static constexpr const char *	vpp_out_crop_w_name ()
static constexpr const char *	vpp_out_crop_x_name ()
static constexpr const char *	vpp_out_crop_y_name ()
static constexpr const char *	vpp_out_fourcc_name ()
static constexpr const char *	vpp_out_framerate_d_name ()
static constexpr const char *	vpp_out_framerate_n_name ()
static constexpr const char *	vpp_out_height_name ()
static constexpr const char *	vpp_out_pic_struct_name ()
static constexpr const char *	vpp_out_width_name ()

Detailed Description

Public class is using for creation of onevpl::GSource instances.

Class members available through methods CfgParam::get_name() and CfgParam::get_value() are used by onevpl::GSource inner logic to create or find oneVPL particular implementation (software/hardware, specific API version and etc.).

Note

Because oneVPL may provide several implementations which are satisfying with multiple (or single one) CfgParam criteria therefore it is possible to configure preferred parameters. This kind of CfgParams are created using is_major = false argument in CfgParam::create method and are not used by creating oneVPL particular implementations. Instead they fill out a "score table" to select preferable implementation from available list. Implementation are satisfying with most of these optional params would be chosen. If no one optional CfgParam params were present then first of available oneVPL implementation would be applied. Please get on https://spec.oneapi.io/versions/latest/elements/oneVPL/source/API_ref/VPL_disp_api_func.html?highlight=mfxcreateconfig#mfxsetconfigfilterproperty for using OneVPL configuration. In this schema mfxU8 *name represents CfgParam::get_name() and mfxVariant value is CfgParam::get_value()

Member Typedef Documentation

name_t

using cv::gapi::wip::onevpl::CfgParam::name_t = std::string

value_t

using cv::gapi::wip::onevpl::CfgParam::value_t

Initial value:

 cv::util::variant<uint8_t, int8_t,
                                      uint16_t, int16_t,
                                      uint32_t, int32_t,
                                      uint64_t, int64_t,
                                      float_t,
                                      double_t,
                                      void*,
                                      std::string>

Constructor & Destructor Documentation

CfgParam() [1/2]

cv::gapi::wip::onevpl::CfgParam::CfgParam

(

const CfgParam &

src

)

CfgParam() [2/2]

cv::gapi::wip::onevpl::CfgParam::CfgParam

(

CfgParam &&

src

)

~CfgParam()

cv::gapi::wip::onevpl::CfgParam::~CfgParam

(

)

Member Function Documentation

acceleration_mode_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::acceleration_mode_name ( )

inlinestaticconstexpr

acceleration_mode_name

Special configuration parameter names for onevp::GSource:

Note

acceleration_mode_name allows to activate hardware acceleration & device memory management. Supported values:

• MFX_ACCEL_MODE_VIA_D3D11 Will activate DX11 acceleration and will produces MediaFrames with data allocated in DX11 device memory

If not set then MFX implementation will use default acceleration behavior: all decoding operation uses default GPU resources but MediaFrame produces data allocated by using host RAM

create()

template<typename ValueType>

CfgParam cv::gapi::wip::onevpl::CfgParam::create ( const std::string & name, ValueType && value, bool is_major = true )

inlinestatic

Create generic onevp::GSource configuration parameter.

Parameters

name	name of parameter.
value	value of parameter.
is_major	TRUE if parameter MUST be provided by OneVPL inner implementation, FALSE for optional (for resolve multiple available implementations).

create_acceleration_mode() [1/2]

CfgParam cv::gapi::wip::onevpl::CfgParam::create_acceleration_mode ( const char * value )

static

create_acceleration_mode() [2/2]

CfgParam cv::gapi::wip::onevpl::CfgParam::create_acceleration_mode ( uint32_t value )

static

create_decoder_id() [1/2]

CfgParam cv::gapi::wip::onevpl::CfgParam::create_decoder_id ( const char * value )

static

create_decoder_id() [2/2]

CfgParam cv::gapi::wip::onevpl::CfgParam::create_decoder_id ( uint32_t value )

static

create_frames_pool_size()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_frames_pool_size ( size_t value )

static

create_implementation() [1/2]

CfgParam cv::gapi::wip::onevpl::CfgParam::create_implementation ( const char * value )

static

create_implementation() [2/2]

CfgParam cv::gapi::wip::onevpl::CfgParam::create_implementation ( uint32_t value )

static

create_vpp_frames_pool_size()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_frames_pool_size ( size_t value )

static

create_vpp_in_crop_h()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_in_crop_h ( uint16_t value )

static

create_vpp_in_crop_w()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_in_crop_w ( uint16_t value )

static

create_vpp_in_crop_x()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_in_crop_x ( uint16_t value )

static

create_vpp_in_crop_y()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_in_crop_y ( uint16_t value )

static

create_vpp_in_height()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_in_height ( uint16_t value )

static

create_vpp_in_width()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_in_width ( uint16_t value )

static

create_vpp_out_chroma_format()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_out_chroma_format ( uint16_t value )

static

create_vpp_out_crop_h()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_out_crop_h ( uint16_t value )

static

create_vpp_out_crop_w()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_out_crop_w ( uint16_t value )

static

create_vpp_out_crop_x()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_out_crop_x ( uint16_t value )

static

create_vpp_out_crop_y()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_out_crop_y ( uint16_t value )

static

create_vpp_out_fourcc()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_out_fourcc ( uint32_t value )

static

create_vpp_out_framerate_d()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_out_framerate_d ( uint32_t value )

static

create_vpp_out_framerate_n()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_out_framerate_n ( uint32_t value )

static

create_vpp_out_height()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_out_height ( uint16_t value )

static

create_vpp_out_pic_struct()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_out_pic_struct ( uint16_t value )

static

create_vpp_out_width()

CfgParam cv::gapi::wip::onevpl::CfgParam::create_vpp_out_width ( uint16_t value )

static

decoder_id_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::decoder_id_name ( )

inlinestaticconstexpr

decoder_id_name

Special configuration parameter names for onevp::GSource:

Note

decoder_id_name allows to specify VPL decoder type which MUST present in case of RAW video input data and MUST NOT present as CfgParam if video stream incapsulated into container(*.mp4, *.mkv and so on). In latter case onevp::GSource will determine it automatically Supported values:

• MFX_CODEC_AVC
• MFX_CODEC_HEVC
• MFX_CODEC_MPEG2
• MFX_CODEC_VC1
• MFX_CODEC_CAPTURE
• MFX_CODEC_VP9
• MFX_CODEC_AV1

frames_pool_size_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::frames_pool_size_name ( )

inlinestaticconstexpr

frames_pool_size_name

Special configuration parameter name for onevp::GSource:

Note

frames_pool_size_name allows to allocate surfaces pool appropriate size to keep decoded frames in accelerator memory ready before they would be consumed by onevp::GSource::pull operation. If you see a lot of WARNING about lack of free surface then it's time to increase frames_pool_size_name but be aware of accelerator free memory volume. If not set then MFX implementation use mfxFrameAllocRequest::NumFrameSuggested behavior

get_name()

const name_t & cv::gapi::wip::onevpl::CfgParam::get_name

(

)

const

get_value()

const value_t & cv::gapi::wip::onevpl::CfgParam::get_value

(

)

const

implementation_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::implementation_name ( )

inlinestaticconstexpr

is_major()

bool cv::gapi::wip::onevpl::CfgParam::is_major

(

)

const

operator!=()

bool cv::gapi::wip::onevpl::CfgParam::operator!=

(

const CfgParam &

rhs

)

const

operator<()

bool cv::gapi::wip::onevpl::CfgParam::operator<

(

const CfgParam &

rhs

)

const

operator=() [1/2]

CfgParam & cv::gapi::wip::onevpl::CfgParam::operator=

(

CfgParam &&

src

)

operator=() [2/2]

CfgParam & cv::gapi::wip::onevpl::CfgParam::operator=

(

const CfgParam &

src

)

operator==()

bool cv::gapi::wip::onevpl::CfgParam::operator==

(

const CfgParam &

rhs

)

const

to_string()

std::string cv::gapi::wip::onevpl::CfgParam::to_string

(

)

const

vpp_frames_pool_size_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_frames_pool_size_name ( )

inlinestaticconstexpr

vpp_in_crop_h_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_in_crop_h_name ( )

inlinestaticconstexpr

vpp_in_crop_w_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_in_crop_w_name ( )

inlinestaticconstexpr

vpp_in_crop_x_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_in_crop_x_name ( )

inlinestaticconstexpr

vpp_in_crop_y_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_in_crop_y_name ( )

inlinestaticconstexpr

vpp_in_height_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_in_height_name ( )

inlinestaticconstexpr

vpp_in_width_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_in_width_name ( )

inlinestaticconstexpr

vpp_out_chroma_format_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_out_chroma_format_name ( )

inlinestaticconstexpr

vpp_out_crop_h_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_out_crop_h_name ( )

inlinestaticconstexpr

vpp_out_crop_w_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_out_crop_w_name ( )

inlinestaticconstexpr

vpp_out_crop_x_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_out_crop_x_name ( )

inlinestaticconstexpr

vpp_out_crop_y_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_out_crop_y_name ( )

inlinestaticconstexpr

vpp_out_fourcc_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_out_fourcc_name ( )

inlinestaticconstexpr

vpp_out_framerate_d_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_out_framerate_d_name ( )

inlinestaticconstexpr

vpp_out_framerate_n_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_out_framerate_n_name ( )

inlinestaticconstexpr

vpp_out_height_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_out_height_name ( )

inlinestaticconstexpr

vpp_out_pic_struct_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_out_pic_struct_name ( )

inlinestaticconstexpr

vpp_out_width_name()

constexpr const char * cv::gapi::wip::onevpl::CfgParam::vpp_out_width_name ( )

inlinestaticconstexpr

---

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

• opencv2/gapi/streaming/onevpl/cfg_params.hpp