xbmc/cores/AudioEngine/Sinks/AESinkWASAPI.h

   1 /*
   2  *  Copyright (C) 2010-2018 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #pragma once
  10
  11 #include "cores/AudioEngine/Interfaces/AESink.h"
  12 #include "cores/AudioEngine/Sinks/windows/AESinkFactoryWin.h"
  13 #include "cores/AudioEngine/Utils/AEDeviceInfo.h"
  14
  15 #include <stdint.h>
  16 #include <vector>
  17
  18 #include <Audioclient.h>
  19 #include <mmdeviceapi.h>
  20 #include <wrl/client.h>
  21
  22 class CAESinkWASAPI : public IAESink
  23 {
  24 public:
  25     CAESinkWASAPI();
  26     virtual ~CAESinkWASAPI();
  27
  28     static void Register();
  29     static std::unique_ptr<IAESink> Create(std::string& device, AEAudioFormat& desiredFormat);
  30     static void EnumerateDevicesEx(AEDeviceInfoList &deviceInfoList, bool force = false);
  31
  32     // IAESink overrides
  33     const char *GetName() override { return "WASAPI"; }
  34     bool Initialize(AEAudioFormat &format, std::string &device) override;
  35     void Deinitialize() override;
  36     void GetDelay(AEDelayStatus& status) override;
  37     double GetCacheTotal() override;
  38     unsigned int AddPackets(uint8_t **data, unsigned int frames, unsigned int offset) override;
  39     void Drain() override;
  40
  41 private:
  42     bool InitializeExclusive(AEAudioFormat &format);
  43     static void BuildWaveFormatExtensibleIEC61397(AEAudioFormat &format, WAVEFORMATEXTENSIBLE_IEC61937 &wfxex);
  44     bool IsUSBDevice();
  45
  46     HANDLE m_needDataEvent{0};
  47     IAEWASAPIDevice* m_pDevice{nullptr};
  48     Microsoft::WRL::ComPtr<IAudioClient> m_pAudioClient;
  49     Microsoft::WRL::ComPtr<IAudioRenderClient> m_pRenderClient;
  50     Microsoft::WRL::ComPtr<IAudioClock> m_pAudioClock;
  51
  52     AEAudioFormat m_format{};
  53     unsigned int m_encodedChannels{0};
  54     unsigned int m_encodedSampleRate{0};
  55     CAEChannelInfo m_channelLayout;
  56     std::string m_device;
  57
  58     enum AEDataFormat sinkReqFormat = AE_FMT_INVALID;
  59     enum AEDataFormat sinkRetFormat = AE_FMT_INVALID;
  60
  61     bool m_running{false};
  62     bool m_initialized{false};
  63     bool m_isSuspended{false}; // sink is in a suspended state - release audio device
  64     bool m_isDirty{false}; // sink output failed - needs re-init or new device
  65
  66     // time between next buffer of data from SoftAE and driver call for data
  67     double m_avgTimeWaiting{50.0};
  68     double m_sinkLatency{0.0}; // time in seconds of total duration of the two WASAPI buffers
  69
  70     unsigned int m_uiBufferLen{0}; // wasapi endpoint buffer size, in frames
  71     uint64_t m_sinkFrames{0};
  72     uint64_t m_clockFreq{0};
  73
  74     std::vector<uint8_t> m_buffer;
  75     int m_bufferPtr{0};
  76 };