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Public Types | 公共成员函数 | 私有成员函数 | 所有成员列表

MediaStreamImageDataImportInterface Class Reference

#include <mediasession_stream.h>

Inheritance diagram for MediaStreamImageDataImportInterface:
Inheritance graph
[ legend ]

详细描述

Stream which represents full image data.

Public Types

using  InitHandler = Delegate < Result < void >(const MediaStreamImageDataImportRef &stream, const MediaStreamProperties &props)>
using  SetPixelHandler = Delegate < Result < SetPixelHandlerStruct >(const MediaStreamImageDataImportRef &stream, const MediaStreamProperties &props, const ChannelOffsets &srcChannelOffset, SETPIXELHANDLERFLAGS setPixelFlags)>
using  FinishHandler = Delegate < Result < void >(const MediaStreamImageDataImportRef &stream, const MediaStreamProperties &props)>

公共成员函数

MAXON_METHOD Result < void >  SetCallbackHandler (const InitHandler &initHandler, const SetPixelHandler &setPixelHandler, const FinishHandler &finishHandler)
MAXON_METHOD Result < void >  InitStream (const MediaStreamProperties &props)
MAXON_METHOD Result < SetPixelHandlerStruct >  SetPixelStream (const MediaStreamProperties &props, const ChannelOffsets &srcChannelOffsets, SETPIXELHANDLERFLAGS setPixelFlags)
MAXON_METHOD Result < void >  FinishStream (const MediaStreamProperties &props)

私有成员函数

  MAXON_INTERFACE ( MediaStreamImageDataImportInterface , MAXON_REFERENCE_NORMAL , "net.maxon.image.interface.mediastreamimagedataimport")

Member Typedef Documentation

◆  InitHandler

using InitHandler = Delegate < Result <void>(const MediaStreamImageDataImportRef& stream, const MediaStreamProperties& props)>

◆  SetPixelHandler

using SetPixelHandler = Delegate < Result < SetPixelHandlerStruct >(const MediaStreamImageDataImportRef& stream, const MediaStreamProperties& props, const ChannelOffsets & srcChannelOffset, SETPIXELHANDLERFLAGS setPixelFlags)>

◆  FinishHandler

using FinishHandler = Delegate < Result <void>(const MediaStreamImageDataImportRef& stream, const MediaStreamProperties& props)>

成员函数文档编制

◆  MAXON_INTERFACE()

MAXON_INTERFACE ( MediaStreamImageDataImportInterface   ,
MAXON_REFERENCE_NORMAL   ,
"net.maxon.image.interface.mediastreamimagedataimport"   
)
private

◆  SetCallbackHandler()

MAXON_METHOD Result <void> SetCallbackHandler ( const InitHandler &  initHandler ,
const SetPixelHandler &  setPixelHandler ,
const FinishHandler &  finishHandler  
)

Subscribes to the stream. So if the media converter loads the stream the setPixelHandler callback is triggered. this allows to read data directly to the place where it needs to by without additional memory copy.

参数
[in] initHandler A handler which is called from the input media converter to signal that data is available for this frame of the stream.
[in] setPixelHandler A handler which is called for each thread that needs a valid SetPixelHandlerStruct which will be used by the input converter to set the pixel data.
[in] finishHandler A handler which is called from the input media converter to signal that data loading the data from this stream is finished for this frame of the stream.
返回
OK on success.

◆  InitStream()

MAXON_METHOD Result <void> InitStream ( const MediaStreamProperties &  props )

called by the input media converter implementation before loading a stream.

参数
[in] props Properties of the source image stream.
返回
OK on success.

◆  SetPixelStream()

MAXON_METHOD Result < SetPixelHandlerStruct > SetPixelStream ( const MediaStreamProperties &  props ,
const ChannelOffsets &  srcChannelOffsets ,
SETPIXELHANDLERFLAGS   setPixelFlags  
)

called by the input media converter implementation before loading a stream.

参数
[in] props Properties of the source image stream.
[in] srcChannelOffsets Source channel offsets of the data that will be set using this set pixel handler.
[in] setPixelFlags Flags which control the set pixel operation. See also SETPIXELHANDLERFLAGS.
返回
OK on success.

◆  FinishStream()

MAXON_METHOD Result <void> FinishStream ( const MediaStreamProperties &  props )

called by the input media converter implementation when loading the stream is completed.

参数
[in] props Properties of the source image stream.
返回
OK on success.