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

MediaStreamImageDataExportInterface Class Reference

#include <mediasession_stream.h>

Inheritance diagram for MediaStreamImageDataExportInterface:
Inheritance graph
[ legend ]

详细描述

Stream which represents full image data.

Public Types

using  InitHandler = Delegate < Result < void >(const MediaStreamImageDataExportRef &stream, MediaStreamProperties &props)>
using  GetPixelHandler = Delegate < Result < GetPixelHandlerStruct >(const MediaStreamImageDataExportRef &stream, const MediaStreamProperties &props, const PixelFormat &dstFormat, const ChannelOffsets &channelOffsets, const ColorProfile &dstColorProfile, GETPIXELHANDLERFLAGS flags, const LayerSetInterface *layerSet)>
using  FinishHandler = Delegate < Result < void >(const MediaStreamImageDataExportRef &stream, const MediaStreamProperties &props)>

公共成员函数

MAXON_METHOD Result < void >  SetCallbackHandler (const InitHandler &initHandler, const GetPixelHandler &getPixelHandler, const FinishHandler &finishHandler)
MAXON_METHOD Result < void >  InitStream (MediaStreamProperties &props)
MAXON_METHOD Result < GetPixelHandlerStruct >  GetPixelStream (const MediaStreamProperties &props, const PixelFormat &dstFormat, const ChannelOffsets &channelOffsets, const ColorProfile &dstColorProfile, GETPIXELHANDLERFLAGS flags)
MAXON_METHOD Result < void >  FinishStream (const MediaStreamProperties &props)

私有成员函数

  MAXON_INTERFACE ( MediaStreamImageDataExportInterface , MAXON_REFERENCE_NORMAL , "net.maxon.image.interface.mediastreamimagedataexport")

Member Typedef Documentation

◆  InitHandler

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

◆  GetPixelHandler

using GetPixelHandler = Delegate < Result < GetPixelHandlerStruct >(const MediaStreamImageDataExportRef& stream, const MediaStreamProperties& props, const PixelFormat& dstFormat, const ChannelOffsets & channelOffsets, const ColorProfile & dstColorProfile, GETPIXELHANDLERFLAGS flags, const LayerSetInterface * layerSet)>

◆  FinishHandler

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

成员函数文档编制

◆  MAXON_INTERFACE()

MAXON_INTERFACE ( MediaStreamImageDataExportInterface   ,
MAXON_REFERENCE_NORMAL   ,
"net.maxon.image.interface.mediastreamimagedataexport"   
)
private

◆  SetCallbackHandler()

MAXON_METHOD Result <void> SetCallbackHandler ( const InitHandler &  initHandler ,
const GetPixelHandler &  getPixelHandler ,
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 output media converter to signal that data is required for this frame of the stream.
[in] getPixelHandler A handler which is called for each thread that needs a valid GetPixelHandlerStruct which will be used by the output converter to get the pixel data.
[in] finishHandler A handler which is called from the output media converter to signal that data writing the data from this stream is finished for this frame of the stream.
返回
OK on success.

◆  InitStream()

MAXON_METHOD Result <void> InitStream ( MediaStreamProperties &  props )

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

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

◆  GetPixelStream()

MAXON_METHOD Result < GetPixelHandlerStruct > GetPixelStream ( const MediaStreamProperties &  props ,
const PixelFormat &  dstFormat ,
const ChannelOffsets &  channelOffsets ,
const ColorProfile &  dstColorProfile ,
GETPIXELHANDLERFLAGS   flags  
)

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

参数
[in] props Properties of the image stream.
[in] dstFormat Destination pixel format.
[in] channelOffsets Channel offset that is needed in the destination.
[in] dstColorProfile Destination color profile.
[in] flags See GETPIXELHANDLERFLAGS flags.
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 image stream.
返回
OK on success.