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429 lines
17 KiB
C
429 lines
17 KiB
C
//------------------------------------------------------------------------------
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// File: EvCode.h
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//
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// Desc: List of standard Quartz event codes and the expected params.
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//
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// Copyright (c) 1992 - 2001, Microsoft Corporation. All rights reserved.
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//------------------------------------------------------------------------------
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// Event codes are broken into two groups
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// -- system event codes
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// -- extension event codes
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// All system event codes are below EC_USER
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#define EC_SYSTEMBASE 0x00
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#define EC_USER 0x8000
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// System-defined event codes
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// ==========================
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//
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// There are three types of system-defined event codes:
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//
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// 1. Those which are always passed through to the application
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// (To be collected by calls to GetEvent or within WaitForCompletion.)
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// (e.g. EC_ERRORABORT, EC_USERABORT.)
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//
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// 2. Those which are pure internal and will never be passed to
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// the application. (e.g. EC_SHUTDOWN)
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//
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// 3. Those which have default handling. Default handing implies that
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// the event is not passed to the application. However, default
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// handling may be canceled by calling
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// IMediaEvent::CancelDefaultHandling. If the default handling is
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// cancelled in this way, then the message will be delivered to the
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// application and the application must action it appropriately.
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// Default handling can be restored by calling RestoreDefaultHandling.
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//
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// We will refer to these events as application, internal and defaulted
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// events respectively.
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//
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// System-defined events may have interface pointers, BSTR's, etc passed
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// as parameters. It is therefore essential that, for any message
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// retrieved using GetEvent, a matching call to FreeEventParams is made
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// to ensure that relevant interfaces are released and storage freed.
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// Failure to call FreeEventParams will result in memory leaks, if not
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// worse.
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//
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// Filters sending these messages to the filter graph should not AddRef()
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// any interfaces that they may pass as parameters. The filter graph
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// manager will AddRef them if required. E.g. if the event is to be queued
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// for the application or queued to a worker thread.
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// Each event listed below is immediately followed by a parameter list
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// detailing the types of the parameters associated with the message,
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// and an indication of whether the message is an application, internal
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// or defaulted message. This is then followed by a short description.
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// The use of "void" in the parameter list implies that the parameter is not
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// used. Such parameters should be zero.
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// Other defined EC_ regions:
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// DVD event codes 0x0100 - 0x0150 (dvdevcod.h)
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// audio device event codes 0x0200 - 0x0250 (audevcod.h)
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// WindowsMedia SDK-originated events 0x0251 - 0x0300 (see below)
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// MSVIDCTL 0x0301 - 0x0325 (msvidctl.idl)
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// stream buffer engine (PVR) 0x0326 - 0x0350 (sbe.idl)
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#define EC_COMPLETE 0x01
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// ( HRESULT, void ) : defaulted (special)
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// Signals the completed playback of a stream within the graph. This message
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// is sent by renderers when they receive end-of-stream. The default handling
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// of this message results in a _SINGLE_ EC_COMPLETE being sent to the
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// application when ALL of the individual renderers have signaled EC_COMPLETE
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// to the filter graph. If the default handing is canceled, the application
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// will see all of the individual EC_COMPLETEs.
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#define EC_USERABORT 0x02
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// ( void, void ) : application
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// In some sense, the user has requested that playback be terminated.
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// This message is typically sent by renderers that render into a
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// window if the user closes the window into which it was rendering.
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// It is up to the application to decide if playback should actually
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// be stopped.
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#define EC_ERRORABORT 0x03
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// ( HRESULT, void ) : application
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// Operation aborted because of error
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#define EC_TIME 0x04
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// ( DWORD, DWORD ) : application
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// The requested reference time occurred. (This event is currently not used).
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// lParam1 is low dword of ref time, lParam2 is high dword of reftime.
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#define EC_REPAINT 0x05
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// ( IPin * (could be NULL), void ) : defaulted
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// A repaint is required - lParam1 contains the (IPin *) that needs the data
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// to be sent again. Default handling is: if the output pin which the IPin is
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// attached to supports the IMediaEventSink interface then it will be called
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// with the EC_REPAINT first. If that fails then normal repaint processing is
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// done by the filter graph.
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// Stream error notifications
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#define EC_STREAM_ERROR_STOPPED 0x06
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#define EC_STREAM_ERROR_STILLPLAYING 0x07
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// ( HRESULT, DWORD ) : application
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// lParam 1 is major code, lParam2 is minor code, either may be zero.
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#define EC_ERROR_STILLPLAYING 0x08
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// ( HRESULT, void ) : application
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// The filter graph manager may issue Run's to the graph asynchronously.
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// If such a Run fails, EC_ERROR_STILLPLAYING is issued to notify the
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// application of the failure. The state of the underlying filters
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// at such a time will be indeterminate - they will all have been asked
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// to run, but some are almost certainly not.
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#define EC_PALETTE_CHANGED 0x09
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// ( void, void ) : application
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// notify application that the video palette has changed
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#define EC_VIDEO_SIZE_CHANGED 0x0A
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// ( DWORD, void ) : application
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// Sent by video renderers.
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// Notifies the application that the native video size has changed.
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// LOWORD of the DWORD is the new width, HIWORD is the new height.
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#define EC_QUALITY_CHANGE 0x0B
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// ( void, void ) : application
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// Notify application that playback degradation has occurred
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#define EC_SHUTTING_DOWN 0x0C
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// ( void, void ) : internal
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// This message is sent by the filter graph manager to any plug-in
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// distributors which support IMediaEventSink to notify them that
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// the filter graph is starting to shutdown.
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#define EC_CLOCK_CHANGED 0x0D
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// ( void, void ) : application
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// Notify application that the clock has changed.
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// (i.e. SetSyncSource has been called on the filter graph and has been
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// distributed successfully to the filters in the graph.)
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#define EC_PAUSED 0x0E
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// ( HRESULT, void ) : application
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// Notify application the previous pause request has completed
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#define EC_OPENING_FILE 0x10
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#define EC_BUFFERING_DATA 0x11
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// ( BOOL, void ) : application
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// lParam1 == 1 --> starting to open file or buffer data
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// lParam1 == 0 --> not opening or buffering any more
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// (This event does not appear to be used by ActiveMovie.)
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#define EC_FULLSCREEN_LOST 0x12
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// ( void, IBaseFilter * ) : application
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// Sent by full screen renderers when switched away from full screen.
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// IBaseFilter may be NULL.
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#define EC_ACTIVATE 0x13
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// ( BOOL, IBaseFilter * ) : internal
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// Sent by video renderers when they lose or gain activation.
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// lParam1 is set to 1 if gained or 0 if lost
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// lParam2 is the IBaseFilter* for the filter that is sending the message
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// Used for sound follows focus and full-screen switching
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#define EC_NEED_RESTART 0x14
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// ( void, void ) : defaulted
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// Sent by renderers when they regain a resource (e.g. audio renderer).
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// Causes a restart by Pause/put_Current/Run (if running).
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#define EC_WINDOW_DESTROYED 0x15
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// ( IBaseFilter *, void ) : internal
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// Sent by video renderers when the window has been destroyed. Handled
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// by the filter graph / distributor telling the resource manager.
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// lParam1 is the IBaseFilter* of the filter whose window is being destroyed
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#define EC_DISPLAY_CHANGED 0x16
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// ( IPin *, void ) : internal
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// Sent by renderers when they detect a display change. the filter graph
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// will arrange for the graph to be stopped and the pin send in lParam1
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// to be reconnected. by being reconnected it allows a renderer to reset
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// and connect with a more appropriate format for the new display mode
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// lParam1 contains an (IPin *) that should be reconnected by the graph
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#define EC_STARVATION 0x17
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// ( void, void ) : defaulted
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// Sent by a filter when it detects starvation. Default handling (only when
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// running) is for the graph to be paused until all filters enter the
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// paused state and then run. Normally this would be sent by a parser or source
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// filter when too little data is arriving.
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#define EC_OLE_EVENT 0x18
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// ( BSTR, BSTR ) : application
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// Sent by a filter to pass a text string to the application.
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// Conventionally, the first string is a type, and the second a parameter.
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#define EC_NOTIFY_WINDOW 0x19
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// ( HWND, void ) : internal
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// Pass the window handle around during pin connection.
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#define EC_STREAM_CONTROL_STOPPED 0x1A
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// ( IPin * pSender, DWORD dwCookie )
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// Notification that an earlier call to IAMStreamControl::StopAt
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// has now take effect. Calls to the method can be marked
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// with a cookie which is passed back in the second parameter,
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// allowing applications to easily tie together request
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// and completion notifications.
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//
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// NB: IPin will point to the pin that actioned the Stop. This
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// may not be the pin that the StopAt was sent to.
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#define EC_STREAM_CONTROL_STARTED 0x1B
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// ( IPin * pSender, DWORD dwCookie )
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// Notification that an earlier call to IAMStreamControl::StartAt
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// has now take effect. Calls to the method can be marked
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// with a cookie which is passed back in the second parameter,
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// allowing applications to easily tie together request
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// and completion notifications.
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//
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// NB: IPin will point to the pin that actioned the Start. This
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// may not be the pin that the StartAt was sent to.
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#define EC_END_OF_SEGMENT 0x1C
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//
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// ( const REFERENCE_TIME *pStreamTimeAtEndOfSegment, DWORD dwSegmentNumber )
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//
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// pStreamTimeAtEndOfSegment
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// pointer to the accumulated stream clock
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// time since the start of the segment - this is directly computable
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// as the sum of the previous and current segment durations (Stop - Start)
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// and the rate applied to each segment
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// The source add this time to the time within each segment to get
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// a total elapsed time
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//
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// dwSegmentNumber
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// Segment number - starts at 0
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//
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// Notifies that a segment end has been reached when the
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// AM_SEEKING_Segment flags was set for IMediaSeeking::SetPositions
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// Passes in an IMediaSeeking interface to allow the next segment
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// to be defined by the application
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#define EC_SEGMENT_STARTED 0x1D
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//
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// ( const REFERENCE_TIME *pStreamTimeAtStartOfSegment, DWORD dwSegmentNumber)
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//
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// pStreamTimeAtStartOfSegment
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// pointer to the accumulated stream clock
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// time since the start of the segment - this is directly computable
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// as the sum of the previous segment durations (Stop - Start)
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// and the rate applied to each segment
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//
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// dwSegmentNumber
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// Segment number - starts at 0
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//
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// Notifies that a new segment has been started.
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// This is sent synchronously by any entity that will issue
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// EC_END_OF_SEGMENT when a new segment is started
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// (See IMediaSeeking::SetPositions - AM_SEEKING_Segment flag)
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// It is used to compute how many EC_END_OF_SEGMENT notifications
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// to expect at the end of a segment and as a consitency check
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#define EC_LENGTH_CHANGED 0x1E
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// (void, void)
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// sent to indicate that the length of the "file" has changed
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#define EC_DEVICE_LOST 0x1f
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// (IUnknown, 0)
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//
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// request window notification when the device is available again
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// (through WM_DEVICECHANGED messages registered with
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// RegisterDeviceNotification; see IAMDeviceRemoval interface)
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#define EC_STEP_COMPLETE 0x24
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// (BOOL bCacelled, void)
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// Step request complete
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// if bCancelled is TRUE the step was cancelled. This can happen
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// if the application issued some control request or because there
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// was a mode change etc etc
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// Event code 25 is reserved for future use.
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#define EC_TIMECODE_AVAILABLE 0x30
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// Sent by filter supporting timecode
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// Param1 has a pointer to the sending object
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// Param2 has the device ID of the sending object
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#define EC_EXTDEVICE_MODE_CHANGE 0x31
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// Sent by filter supporting IAMExtDevice
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// Param1 has the new mode
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// Param2 has the device ID of the sending object
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#define EC_STATE_CHANGE 0x32
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// ( FILTER_STATE, BOOL bInternal)
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// Used to notify the application of any state changes in the filter graph.
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// lParam1 is of type enum FILTER_STATE (defined in strmif.h) and indicates
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// the state of the filter graph.
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//
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// lParam2 == 0 indicates that the previous state change request has completed
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// & a change in application state.
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// lParam2 == 1 reserved for future use to indicate internal state changes.
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#define EC_GRAPH_CHANGED 0x50
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// Sent by filter to notify interesting graph changes
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#define EC_CLOCK_UNSET 0x51
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// ( void, void ) : application
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// Used to notify the filter graph to unset the current graph clock.
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// Has the affect of forcing the filter graph to reestablish the graph clock
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// on the next Pause/Run (note that this is only used by ksproxy, when the pin
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// of a clock providing filter is disconnected)
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#define EC_VMR_RENDERDEVICE_SET 0x53
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// (Render_Device type, void)
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// Identifies the type of rendering mechanism the VMR
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// is using to display video. Types used include:
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#define VMR_RENDER_DEVICE_OVERLAY 0x01
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#define VMR_RENDER_DEVICE_VIDMEM 0x02
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#define VMR_RENDER_DEVICE_SYSMEM 0x04
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#define EC_VMR_SURFACE_FLIPPED 0x54
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// (hr - Flip return code, void)
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// Identifies the VMR's allocator-presenter has called the DDraw flip api on
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// the surface being presented. This allows the VMR to keep its DX-VA table
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// of DDraw surfaces in sync with DDraws flipping chain.
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#define EC_VMR_RECONNECTION_FAILED 0x55
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// (hr - ReceiveConnection return code, void)
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// Identifies that an upstream decoder tried to perform a dynamic format
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// change and the VMR was unable to accept the new format.
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#define EC_PREPROCESS_COMPLETE 0x56
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// Sent by the WM ASF writer filter (WMSDK V9 version) to signal the completion
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// of a pre-process run when running in multipass encode mode.
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// Param1 = 0, Param2 = IBaseFilter ptr of sending filter
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#define EC_CODECAPI_EVENT 0x57
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// Sent by the Codec API when an event is encountered. Both the Data
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// must be freed by the recipient using CoTaskMemFree
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// Param1 = UserDataPointer, Param2 = VOID* Data
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//------------------------------------------
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//
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// BDA events:
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//
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// Event code 0x80 through 0x8f are reserved for BDA
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//
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//------------------------------------------
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//
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// WindowsMedia SDK filter-specific events:
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//
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//
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// Note that for EC_WMT_EVENT events the wmsdk-based filters use the following structure for
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// passing event parameters to the app:
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#ifndef AM_WMT_EVENT_DATA_DEFINED
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#define AM_WMT_EVENT_DATA_DEFINED
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typedef struct {
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HRESULT hrStatus; // status code
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void * pData; // event data
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} AM_WMT_EVENT_DATA;
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#endif
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//
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#define EC_WMT_EVENT_BASE 0x0251
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//
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#define EC_WMT_INDEX_EVENT EC_WMT_EVENT_BASE
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// WindowsMedia SDK-originated file indexing status, sent by WMSDK-based filters
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//
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// lParam1 is one of the enum WMT_STATUS messages listed below, sent by the WindowsMedia SDK
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// lParam2 is specific to the lParam event
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//
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// the following WMT_STATUS messages are sent for this event:
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// WMT_STARTED - lParam2 is 0
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// WMT_CLOSED - lParam2 is 0
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// WMT_INDEX_PROGRESS - lParam2 is a DWORD containing the progress percent complete
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//
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#define EC_WMT_EVENT EC_WMT_EVENT_BASE+1
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// WindowsMedia SDK-originated event, sent by WMSDK-based filters
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//
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// lParam1 is one of the enum WMT_STATUS messages listed below, sent by the WindowsMedia SDK
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// lParam2 is a pointer an AM_WMT_EVENT_DATA structure where,
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// hrStatus is the status code sent by the wmsdk
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// pData is specific to the lParam1 event
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//
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// the following WMT_STATUS messages are sent by the WMSDK Reader filter for this event:
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// WMT_NO_RIGHTS - pData is a pointer to a WCHAR string containing a challenge URL
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// WMT_ACQUIRE_LICENSE - lParam2 is a pointer to a WM_GET_LICENSE_DATA struct
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// WMT_NO_RIGHTS_EX - lParam2 is a pointer to a WM_GET_LICENSE_DATA struct
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// WMT_NEEDS_INDIVIDUALIZATION - lParam2 is NULL
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// WMT_INDIVIDUALIZE - lParam2 is a pointer to a WM_INDIVIDUALIZE_STATUS struct
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// the WMSDK (V9) ASF Writer filter will send this event in response to a wmsdk-signaled error during file
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// writing, along with the wmsdk WMT_STATUS error as the lParam1 and hrStatus embedded in the
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// AM_WMT_EVENT_DATA struct pointed to by the lParam2 pointer.
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//
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// end WMSDK-originated events
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//-----------------------------------------
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#define EC_BUILT 0x300
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// Sent to notify transition from unbuilt to built state
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#define EC_UNBUILT 0x301
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// Sent to notify transtion from built to unbuilt state
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