xbmc/cores/AudioEngine/Sinks/AESinkDARWINOSX.h

   1 /*
   2  *  Copyright (C) 2005-2018 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/osx/CoreAudioDevice.h"
  13 #include "cores/AudioEngine/Utils/AEDeviceInfo.h"
  14
  15 class AERingBuffer;
  16 struct AEDelayStatus;
  17
  18 class CAESinkDARWINOSX : public IAESink
  19 {
  20 public:
  21   const char* GetName() override { return "DARWINOSX"; }
  22
  23   CAESinkDARWINOSX();
  24   ~CAESinkDARWINOSX() override;
  25
  26   static void Register();
  27   static void EnumerateDevicesEx(AEDeviceInfoList &list, bool force);
  28   static std::unique_ptr<IAESink> Create(std::string& device, AEAudioFormat& desiredFormat);
  29
  30   bool Initialize(AEAudioFormat& format, std::string& device) override;
  31   void Deinitialize() override;
  32
  33   void GetDelay(AEDelayStatus& status) override;
  34   double GetCacheTotal() override;
  35   unsigned int AddPackets(uint8_t** data, unsigned int frames, unsigned int offset) override;
  36   void Drain() override;
  37
  38 private:
  39   static OSStatus renderCallback(AudioDeviceID inDevice, const AudioTimeStamp* inNow, const AudioBufferList* inInputData, const AudioTimeStamp* inInputTime, AudioBufferList* outOutputData, const AudioTimeStamp* inOutputTime, void* inClientData);
  40   void SetHogMode(bool on);
  41
  42   CAEDeviceInfo      m_info;
  43
  44   CCoreAudioDevice   m_device;
  45   CCoreAudioStream   m_outputStream;
  46   unsigned int m_latentFrames = 0;
  47   unsigned int m_outputBufferIndex = 0;
  48
  49   bool m_outputBitstream =
  50       false; ///< true if we're bistreaming into a LinearPCM stream rather than AC3 stream.
  51   unsigned int m_planes = 1; ///< number of audio planes (1 if non-planar)
  52   unsigned int m_frameSizePerPlane = 0; ///< frame size (per plane) in bytes
  53   unsigned int m_framesPerSecond = 0; ///< sample rate
  54
  55   AERingBuffer* m_buffer = nullptr;
  56   volatile bool m_started =
  57       false; // set once we get a callback from CoreAudio, which can take a little while.
  58
  59   CAESpinSection         m_render_locker;
  60   volatile int64_t m_render_tick = 0;
  61   volatile double m_render_delay = 0.0;
  62 };