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/**
* @file volume_catcher.h
* @brief Interface to a class with platform-specific implementations that allows control of the audio volume of all sources in the current process.
*
* @cond
* $LicenseInfo:firstyear=2010&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
* @endcond
*/
#ifndef VOLUME_CATCHER_H
#define VOLUME_CATCHER_H
#include "linden_common.h"
class VolumeCatcherImpl
{
public:
virtual ~VolumeCatcherImpl() = default;
virtual void setVolume(F32 volume) = 0; // 0.0 - 1.0
// Set the left-right pan of audio sources
// where -1.0 = left, 0 = center, and 1.0 = right
virtual void setPan(F32 pan) = 0;
virtual void pump() = 0; // call this at least a few times a second if you can - it affects how quickly we can 'catch' a new audio source and adjust its volume
};
class VolumeCatcher : public VolumeCatcherImpl
{
public:
VolumeCatcher();
~VolumeCatcher();
void setVolume(F32 volume);
void setPan(F32 pan);
void pump();
#if LL_LINUX
void onEnablePipeWireVolumeCatcher(bool enable);
#endif
private:
VolumeCatcherImpl *pimpl;
};
#endif // VOLUME_CATCHER_H
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