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+/** 
+ * @file streamingaudio.h
+ * @author Tofu Linden
+ * @brief Definition of LLStreamingAudioInterface base class abstracting the streaming audio interface
+ *
+ * $LicenseInfo:firstyear=2009&license=viewergpl$
+ * 
+ * Copyright (c) 2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_STREAMINGAUDIO_H
+#define LL_STREAMINGAUDIO_H
+
+#include "stdtypes.h" // from llcommon
+
+// Entirely abstract.  Based exactly on the historic API.
+class LLStreamingAudioInterface
+{
+ public:
+        virtual ~LLStreamingAudioInterface() {}
+
+        virtual void start(const std::string& url) = 0;
+        virtual void stop() = 0;
+        virtual void pause(int pause) = 0;
+        virtual void update() = 0;
+        virtual int isPlaying() = 0;
+        // use a value from 0.0 to 1.0, inclusive
+        virtual void setGain(F32 vol) = 0;
+        virtual F32 getGain() = 0;
+        virtual std::string getURL() = 0;
+};
+
+#endif // LL_STREAMINGAUDIO_H