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333 lines
12 KiB
333 lines
12 KiB
//*****************************************************************************
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//
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// Microsoft Windows Media
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// Copyright (C) Microsoft Corporation. All rights reserved.
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//
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// FileName: wmsdatapath.idl
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//
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// Abstract:
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//
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//*****************************************************************************
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cpp_quote("//*****************************************************************************")
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cpp_quote("//")
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cpp_quote("// Microsoft Windows Media")
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cpp_quote("// Copyright (C) Microsoft Corporation. All rights reserved.")
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cpp_quote("//")
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cpp_quote("// Automatically generated by Midl from wmsdatapath.idl" )
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cpp_quote("//")
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cpp_quote("// DO NOT EDIT THIS FILE.")
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cpp_quote("//")
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cpp_quote("//*****************************************************************************")
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import "objidl.idl";
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import "nsscore.idl";
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import "DataContainer.idl";
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import "StreamDescription.idl";
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import "WMSPacket.idl";
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interface IWMSPacketStreamer;
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interface IWMSPacketStreamerCallback;
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interface IWMSPushSource;
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interface IWMSPushSourceCallback;
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interface IWMSPushSink;
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interface IWMSPacketStreamDataContainer;
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cpp_quote( "EXTERN_GUID( IID_IWMSPacketStreamer, 0x72527A81,0x1119,0x11d2,0x9E,0xEE,0x00,0x60,0x97,0xD2,0xD7,0xCF );" )
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cpp_quote( "EXTERN_GUID( IID_IWMSPacketStreamerCallback, 0x72527A82,0x1119,0x11d2,0x9E,0xEE,0x00,0x60,0x97,0xD2,0xD7,0xCF );" )
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cpp_quote( "EXTERN_GUID( IID_IWMSPushSource, 0x0B840593,0x115C,0x11d2,0x9E,0xEE,0x00,0x60,0x97,0xD2,0xD7,0xCF );" )
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cpp_quote( "EXTERN_GUID( IID_IWMSPushSourceCallback, 0xead035e4, 0xbe4a, 0x4a7a, 0xbc, 0x19, 0x5b, 0xb, 0x9e, 0x9, 0xd7, 0x4c );" )
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cpp_quote( "EXTERN_GUID( IID_IWMSPushSink, 0x0B840594,0x115C,0x11d2,0x9E,0xEE,0x00,0x60,0x97,0xD2,0xD7,0xCF );" )
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cpp_quote( "EXTERN_GUID( IID_IWMSPacketStreamDataContainer, 0xb1b6039, 0x572c, 0x11d2, 0x9e, 0xff, 0x0, 0x60, 0x97, 0xd2, 0xd7, 0xcf );" )
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///////////////////////////////////////////////////////////////////////////////
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// These are the options for a seek and play command that are passed in
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// the command context to the play command.
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typedef [public] enum WMS_SEEK_AND_PLAY_TYPE
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{
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WMSPlayFromCurrentPosition,
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WMSSeekToIFrameAndPlay,
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WMSSeekToPositionAndPlay,
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} WMS_SEEK_AND_PLAY_TYPE;
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// These are the flags passed to a seek command.
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cpp_quote("#define WMS_SEEK_TO_IFRAME 0x0001")
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//////////////////////////////////////////////////////////////////////////////
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//
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// GENERIC PACKET STREAMER
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//
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//////////////////////////////////////////////////////////////////////////////
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[
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object,
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pointer_default(unique),
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uuid(72527A81-1119-11d2-9EEE-006097D2D7CF),
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version(9.0),
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helpstring("Contains methods for retrieving information on streams being sent down a data path and for controlling the streams being sent down a data path.")
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]
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interface IWMSPacketStreamer : IUnknown
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{
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// This is called every time a source changes. This is called once
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// for a simple movie file, and called every time a server-side
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// playlist changes its output.
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[helpstring("Retrieves header information on streams that are being sent down the data path.")] HRESULT
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GetStreamInfo(
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[in] IWMSPacketStreamerCallback *pCallback,
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[in] QWORD qwContext
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);
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// A parser will be smart about waiting until the next
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// iframe before sending data from a newly selected stream.
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[helpstring("Specifies the streams that are sent down the data path.")] HRESULT
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SelectStream(
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[in] IWMSCommandContext *pCommand,
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[in] IWMSStreamSwitchDescriptionList *pStreamSwitchDescList,
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[in] IWMSPacketStreamerCallback *pCallback,
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[in] QWORD qwContext
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);
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// This affects all selected streams. It returns the min seek
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// point of all selected streams.
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// When the parser seeks to a point, it returns all frames
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// after and including the first iframe of the stream. This
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// lets us ignore pframes that are after the common seek point
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// but before the next iframe.
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[helpstring("Seeks to a specific offset in a multimedia stream.")] HRESULT
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Seek(
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[in] IWMSCommandContext *pCommand,
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[in] DWORD dwOffsetType,
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[in] QWORD qwOffset,
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[in] DWORD dwFlags,
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[in] IWMSPacketStreamerCallback *pCallback,
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[in] QWORD qwContext
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);
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[helpstring("Reserved for future use.")] HRESULT
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ChangeStreamFormat(
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[in] IWMSCommandContext *pCommand,
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[in] IWMSPacketStreamerCallback *pCallback,
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[in] QWORD qwContext
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);
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[helpstring("Reserved for future use.")] HRESULT
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Interrupt(
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[in] IWMSCommandContext *pCommand,
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[in] DWORD dwOptions,
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[in] IWMSPacketStreamerCallback *pCallback,
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[in] QWORD qwContext
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);
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// Extended Commands
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[helpstring("Passes extended commands defined by a plug-in up the data path.")] HRESULT
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DoExtendedCommand(
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[in] LPWSTR szCommandName,
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[in] IWMSCommandContext *pCommand,
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[in] IWMSPacketStreamerCallback *pCallback,
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[in] QWORD qwContext
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);
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// This releases internal references, possibly breaking
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// cyclic references.
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[helpstring("Called by the server when the data path is being shut down.")] HRESULT
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Shutdown();
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};
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//////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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[
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object,
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pointer_default(unique),
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uuid(72527A82-1119-11d2-9EEE-006097D2D7CF),
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version(9.0),
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helpstring("Contains methods that enable a plug-in to respond to IWMSPacketStreamer method calls.")
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]
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interface IWMSPacketStreamerCallback : IUnknown
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{
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[helpstring("Called by the plug-in to respond to the IWMSPacketStreamer::GetStreamInfo method call.")] HRESULT
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OnGetStreamInfo(
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[in] HRESULT hr,
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[in] IWMSStreamHeaderList *pHeaderList,
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[in] IWMSContentDescriptionList *pContentDescription,
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[in] QWORD qwContext
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);
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[helpstring("Called by the plug-in to respond to the IWMSPacketStreamer::Seek method call.")] HRESULT
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OnSeek(
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[in] HRESULT hr,
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[in] QWORD qwActualPosition,
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[in] QWORD qwContext
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);
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[helpstring("Called by the plug-in to respond to the IWMSPacketStreamer::SelectStream method call.")] HRESULT
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OnSelectStream(
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[in] HRESULT hr,
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[in] QWORD qwContext
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);
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[helpstring("Reserved for future use.")] HRESULT
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OnChangeStreamFormat(
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[in] HRESULT hr,
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[in] QWORD qwContext
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);
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[helpstring("Reserved for future use.")] HRESULT
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OnInterrupt(
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[in] HRESULT hr,
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[in] QWORD qwContext
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);
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[helpstring("Called by the plug-in to respond to the IWMSPacketStreamer::DoExtendedCommand method call.")] HRESULT
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OnDoExtendedCommand(
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[in] HRESULT hr,
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[in] QWORD qwContext
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);
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};
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//////////////////////////////////////////////////////////////////////////////
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//
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// PACKET STREAM DATA CONTAINER
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//
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// Each live source will implement a storage system that allocates data
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// containers. Those data containers will implement IWMSPacketStreamer
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// and IWMSPacketStreamDataContainer in addition to IWMSDataContainer.
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//////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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[
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object,
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pointer_default(unique),
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uuid(0B1B6039-572C-11d2-9EFF-006097D2D7CF),
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version(9.0),
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helpstring("Contains methods to notify the server of stream signals and to determine the maximum packet size used by a data container.")
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]
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interface IWMSPacketStreamDataContainer : IUnknown
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{
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[helpstring("Called by the server to indicate that it should be notified of stream signals.")] HRESULT
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SetStreamSignalHandler(
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[in] IWMSStreamSignalHandler *pStreamSignalHandler
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);
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[helpstring("Retrieves the maximum packet size, in bytes, that is used by the data container.")] HRESULT
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GetMaxPacketSize( [out] DWORD *pdwMaxPacketSize );
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// PACKET PUSH INTERFACES
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//
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//////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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[
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object,
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pointer_default(unique),
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uuid(0B840593-115C-11d2-9EEE-006097D2D7CF),
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version(9.0),
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helpstring("Contains methods that control the flow of data through a data path.")
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]
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interface IWMSPushSource : IUnknown
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{
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[helpstring("Reserved for future use.")] HRESULT
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ConnectSink( [in] IWMSPushSink *pDataOutput );
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[helpstring("Reserved for future use.")] HRESULT
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DisconnectSink();
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// Call start each time you change the rate (ie, play to
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// fast-forward). A negative rate is rewind.
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[helpstring("Starts the flow of packets down a data path.")] HRESULT
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StartPushing(
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[in] IWMSCommandContext *pCommand,
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[in] double dblRate,
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[in] IWMSPushSourceCallback *pCallback,
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[in] QWORD qwContext
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);
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[helpstring("Stops the flow of packets down a data path.")] HRESULT
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StopPushing(
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[in] IWMSCommandContext *pCommand,
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[in] IWMSPushSourceCallback *pCallback,
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[in] QWORD qwContext
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);
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// This may or may not be implemented differently than StopPushing.
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[helpstring("Pauses the flow of packets down a data path.")] HRESULT
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PausePushing(
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[in] IWMSCommandContext *pCommand,
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[in] IWMSPushSourceCallback *pCallback,
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[in] QWORD qwContext
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);
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[helpstring("Passes UDP resend requests up the data path.")] HRESULT
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ResendPacket(
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[in] IWMSCommandContext *pCommand,
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[in] DWORD dwPacketNum,
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[in] DWORD dwStreamNum
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);
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};
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//////////////////////////////////////////////////////////////////////////////
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[
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object,
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pointer_default(unique),
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uuid(EAD035E4-BE4A-4a7a-BC19-5B0B9E09D74C),
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version(9.0),
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helpstring("Contains methods that enable a plug-in to respond to IWMSPushSource method calls.")
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]
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interface IWMSPushSourceCallback : IUnknown
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{
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[helpstring("Called by the plug-in to respond to the IWMSPushSource::StartPushing method call.")] HRESULT
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OnStartPushing(
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[in] HRESULT hr,
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[in] QWORD qwContext
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);
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[helpstring("Called by the plug-in to respond to the IWMSPushSource::StopPushing method call.")] HRESULT
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OnStopPushing(
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[in] HRESULT hr,
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[in] QWORD qwContext
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);
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[helpstring("Called by the plug-in to respond to the IWMSPushSource::PausePushing method call.")] HRESULT
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OnPausePushing(
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[in] HRESULT hr,
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[in] QWORD qwContext
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);
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};
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//////////////////////////////////////////////////////////////////////////////
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[
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object,
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pointer_default(unique),
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uuid(0B840594-115C-11d2-9EEE-006097D2D7CF),
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version(9.0),
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helpstring("Contains a method to request that a data path component process a packet list.")
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]
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interface IWMSPushSink : IUnknown
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{
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[helpstring("Reserved for future use.")] HRESULT
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ConnectSource( [in] IWMSPushSource *pDataInput );
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[helpstring("Reserved for future use.")] HRESULT
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DisconnectSource();
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// The main method for moving data through the server.
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[helpstring("Requests that a data path component process a packet list.")] HRESULT
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ProcessPackets( [in] IWMSPacketList *pPacketList );
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};
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