1 files changed, 97 insertions, 0 deletions
diff --git a/video/videosubsystem.h b/video/videosubsystem.h
new file mode 100644
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--- /dev/null
+++ b/video/videosubsystem.h
@@ -0,0 +1,97 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// The copyright to the contents herein is the property of Valve, L.L.C.
+// The contents may be used and/or copied only with the written permission of
+// Valve, L.L.C., or in accordance with the terms and conditions stipulated in
+// the agreement/contract under which the contents have been supplied.
+//
+//=============================================================================
+
+#ifndef VIDEOSUBSYSTEM_H
+#define VIDEOSUBSYSTEM_H
+
+#if defined ( WIN32 )
+    #pragma once
+#endif
+
+#include "tier2/tier2.h"
+#include "appframework/IAppSystem.h"
+
+
+
+//-----------------------------------------------------------------------------
+// Common structure used to store supported file types
+//-----------------------------------------------------------------------------
+struct VideoFileExtensionInfo_t
+{
+	const char			   *m_FileExtension;
+	VideoSystem_t			m_VideoSubSystem;
+	VideoSystemFeature_t	m_VideoFeatures;
+};
+
+
+
+
+class IVideoCommonServices
+{
+	public:
+		virtual bool			CalculateVideoDimensions( int videoWidth, int videoHeight, int displayWidth, int displayHeight, VideoPlaybackFlags_t playbackFlags, 
+													  int *pOutputWidth, int *pOutputHeight, int *pXOffset, int *pYOffset ) = 0;
+
+		virtual	float			GetSystemVolume() = 0;
+													  
+		virtual VideoResult_t	InitFullScreenPlaybackInputHandler( VideoPlaybackFlags_t playbackFlags, float forcedMinTime, bool windowed ) = 0;
+		
+		virtual bool			ProcessFullScreenInput( bool &bAbortEvent, bool &bPauseEvent, bool &bQuitEvent ) = 0;
+		
+		virtual VideoResult_t	TerminateFullScreenPlaybackInputHandler() = 0;
+		
+};
+
+
+//-----------------------------------------------------------------------------
+// Main VIDEO_SERVICES interface
+//-----------------------------------------------------------------------------
+#define VIDEO_SUBSYSTEM_INTERFACE_VERSION   "IVideoSubSystem002"
+
+class IVideoSubSystem : public IAppSystem
+{
+	public:
+		// SubSystem Identification functions
+		virtual VideoSystem_t			GetSystemID() = 0;
+		virtual VideoSystemStatus_t		GetSystemStatus() = 0;
+		virtual VideoSystemFeature_t	GetSupportedFeatures() = 0;
+		virtual const char			   *GetVideoSystemName() = 0;
+		
+		// Setup & Shutdown Services
+		virtual bool					InitializeVideoSystem( IVideoCommonServices *pCommonServices ) = 0;
+		virtual bool					ShutdownVideoSystem() = 0;
+		
+		virtual VideoResult_t			VideoSoundDeviceCMD( VideoSoundDeviceOperation_t operation, void *pDevice, void *pData = nullptr ) = 0;
+		
+		// get list of file extensions and features we support
+		virtual int						GetSupportedFileExtensionCount() = 0;
+		virtual const char			   *GetSupportedFileExtension( int num ) = 0;
+		virtual VideoSystemFeature_t	GetSupportedFileExtensionFeatures( int num ) = 0;
+
+		// Video Playback and Recording Services
+		
+		virtual VideoResult_t			PlayVideoFileFullScreen( const char *filename, void *mainWindow, int windowWidth, int windowHeight, int desktopWidth, int desktopHeight, bool windowed, float forcedMinTime, VideoPlaybackFlags_t playbackFlags ) = 0;
+
+		// Create/destroy a video material
+		virtual IVideoMaterial		   *CreateVideoMaterial( const char *pMaterialName, const char *pVideoFileName, VideoPlaybackFlags_t flags ) = 0;
+		virtual VideoResult_t			DestroyVideoMaterial( IVideoMaterial* pVideoMaterial ) = 0;
+
+		// Create/destroy a video encoder		
+		virtual IVideoRecorder		   *CreateVideoRecorder() = 0;
+		virtual VideoResult_t			DestroyVideoRecorder( IVideoRecorder *pRecorder ) = 0;
+
+		virtual VideoResult_t			CheckCodecAvailability( VideoEncodeCodec_t codec ) = 0;
+		
+		virtual VideoResult_t			GetLastResult() = 0;
+
+};
+
+
+
+#endif