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/*
 *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#ifndef WEBRTC_VOICE_ENGINE_SHARED_DATA_H
#define WEBRTC_VOICE_ENGINE_SHARED_DATA_H

#include "webrtc/base/scoped_ptr.h"
#include "webrtc/modules/audio_device/include/audio_device.h"
#include "webrtc/modules/audio_processing/include/audio_processing.h"
#include "webrtc/modules/utility/interface/process_thread.h"
#include "webrtc/voice_engine/channel_manager.h"
#include "webrtc/voice_engine/statistics.h"
#include "webrtc/voice_engine/voice_engine_defines.h"

class ProcessThread;

namespace webrtc {
class Config;
class CriticalSectionWrapper;

namespace voe {

class TransmitMixer;
class OutputMixer;

class SharedData
{
public:
    // Public accessors.
    uint32_t instance_id() const { return _instanceId; }
    Statistics& statistics() { return _engineStatistics; }
    ChannelManager& channel_manager() { return _channelManager; }
    AudioDeviceModule* audio_device() { return _audioDevicePtr; }
    void set_audio_device(AudioDeviceModule* audio_device);
    AudioProcessing* audio_processing() { return audioproc_.get(); }
    void set_audio_processing(AudioProcessing* audio_processing);
    TransmitMixer* transmit_mixer() { return _transmitMixerPtr; }
    OutputMixer* output_mixer() { return _outputMixerPtr; }
    CriticalSectionWrapper* crit_sec() { return _apiCritPtr; }
    ProcessThread* process_thread() { return _moduleProcessThreadPtr.get(); }
    AudioDeviceModule::AudioLayer audio_device_layer() const {
      return _audioDeviceLayer;
    }
    void set_audio_device_layer(AudioDeviceModule::AudioLayer layer) {
      _audioDeviceLayer = layer;
    }

    int NumOfSendingChannels();
    int NumOfPlayingChannels();

    // Convenience methods for calling statistics().SetLastError().
    void SetLastError(int32_t error) const;
    void SetLastError(int32_t error, TraceLevel level) const;
    void SetLastError(int32_t error, TraceLevel level,
                      const char* msg) const;

protected:
    const uint32_t _instanceId;
    CriticalSectionWrapper* _apiCritPtr;
    ChannelManager _channelManager;
    Statistics _engineStatistics;
    AudioDeviceModule* _audioDevicePtr;
    OutputMixer* _outputMixerPtr;
    TransmitMixer* _transmitMixerPtr;
    rtc::scoped_ptr<AudioProcessing> audioproc_;
    rtc::scoped_ptr<ProcessThread> _moduleProcessThreadPtr;

    AudioDeviceModule::AudioLayer _audioDeviceLayer;

    SharedData(const Config& config);
    virtual ~SharedData();
};

}  // namespace voe

}  // namespace webrtc
#endif // WEBRTC_VOICE_ENGINE_SHARED_DATA_H