1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef REMOTING_HOST_AUDIO_CAPTURER_WIN_H_ 6 #define REMOTING_HOST_AUDIO_CAPTURER_WIN_H_ 7 8 #include <audioclient.h> 9 #include <mmdeviceapi.h> 10 11 #include "base/basictypes.h" 12 #include "base/memory/scoped_ptr.h" 13 #include "base/threading/thread_checker.h" 14 #include "base/timer/timer.h" 15 #include "base/win/scoped_co_mem.h" 16 #include "base/win/scoped_comptr.h" 17 #include "remoting/host/audio_capturer.h" 18 #include "remoting/host/audio_silence_detector.h" 19 #include "remoting/proto/audio.pb.h" 20 21 namespace remoting { 22 23 class AudioCapturerWin : public AudioCapturer { 24 public: 25 AudioCapturerWin(); 26 virtual ~AudioCapturerWin(); 27 28 // AudioCapturer interface. 29 virtual bool Start(const PacketCapturedCallback& callback) OVERRIDE; 30 virtual void Stop() OVERRIDE; 31 virtual bool IsStarted() OVERRIDE; 32 33 private: 34 // Receives all packets from the audio capture endpoint buffer and pushes them 35 // to the network. 36 void DoCapture(); 37 38 PacketCapturedCallback callback_; 39 40 AudioPacket::SamplingRate sampling_rate_; 41 42 scoped_ptr<base::RepeatingTimer<AudioCapturerWin> > capture_timer_; 43 base::TimeDelta audio_device_period_; 44 45 AudioSilenceDetector silence_detector_; 46 47 base::win::ScopedCoMem<WAVEFORMATEX> wave_format_ex_; 48 base::win::ScopedComPtr<IAudioCaptureClient> audio_capture_client_; 49 base::win::ScopedComPtr<IAudioClient> audio_client_; 50 base::win::ScopedComPtr<IMMDevice> mm_device_; 51 52 HRESULT last_capture_error_; 53 54 base::ThreadChecker thread_checker_; 55 56 DISALLOW_COPY_AND_ASSIGN(AudioCapturerWin); 57 }; 58 59 } // namespace remoting 60 61 #endif // REMOTING_HOST_AUDIO_CAPTURER_WIN_H_ 62
