src/audio-pulse.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * audio-pulse.h:
   4  *
   5  * Contact:
   6  *   Moonlight List (moonlight-list@lists.ximian.com)
   7  *
   8  * Copyright 2008 Novell, Inc. (http://www.novell.com)
   9  *
  10  * See the LICENSE file included with the distribution for details.
  11  */
  12
  13 #if INCLUDE_PULSEAUDIO
  14
  15 #ifndef __AUDIO_PULSE_H__
  16 #define __AUDIO_PULSE_H__
  17
  18 #include <pulse/pulseaudio.h>
  19
  20 #include "audio.h"
  21
  22 class PulsePlayer;
  23
  24 class PulseSource: public AudioSource {
  25         PulsePlayer *player;
  26         pa_stream *pulse_stream;
  27         bool triggered;
  28         bool is_ready;
  29         bool initialized;
  30         bool play_pending;
  31         bool closed;
  32
  33         void PACork (bool cork);
  34         void PATrigger ();
  35         void PAFlush ();
  36         void OnUnderflow ();
  37         void OnStateChanged (pa_stream *stream);
  38         void OnWrite (size_t length);
  39
  40         static void OnUnderflow (pa_stream *pulse_stream, void *userdata);
  41         static void OnWrite (pa_stream *pulse_stream, size_t length, void *userdata);
  42         static void OnStateChanged (pa_stream *pulse_stream, void *userdata);
  43
  44         bool InitializePA ();
  45         void WriteAvailable ();
  46
  47         pa_stream_state_t GetPAState (pa_stream *pulse_stream = NULL);
  48
  49  protected:
  50         virtual ~PulseSource ();
  51
  52         virtual void Played ();
  53         virtual void Paused ();
  54         virtual void Stopped ();
  55         virtual void StateChanged (AudioState old_state);
  56         virtual guint64 GetDelayInternal ();
  57         virtual bool InitializeInternal ();
  58         virtual void CloseInternal ();
  59
  60  public:
  61         PulseSource (PulsePlayer *player, MediaPlayer *mplayer, AudioStream *stream);
  62 };
  63
  64 class PulsePlayer : public AudioPlayer {
  65  private:
  66         enum ConnectedState {
  67                 ConnectionUnknown,
  68                 ConnectionFailed,
  69                 ConnectionSuccess
  70         };
  71  private:
  72         pa_context *context;
  73         pa_threaded_mainloop *loop;
  74         pa_mainloop_api *api;
  75         pthread_cond_t cond;
  76         pthread_mutex_t mutex;
  77
  78         ConnectedState connected; // 0 = don't know, 1 = failed to connect, 2 = connected
  79
  80         static void OnContextStateChanged (pa_context *context, void *userdata);
  81         void OnContextStateChanged ();
  82
  83  protected:
  84         virtual void AddInternal (AudioSource *node);
  85         virtual void RemoveInternal (AudioSource *node);
  86         virtual void PrepareShutdownInternal ();
  87         virtual void FinishShutdownInternal ();
  88         virtual bool Initialize ();
  89         virtual AudioSource *CreateNode (MediaPlayer *mplayer, AudioStream *stream);
  90
  91  public:
  92         PulsePlayer ();
  93         virtual ~PulsePlayer ();
  94
  95         pa_context *GetPAContext () { return context; }
  96         pa_threaded_mainloop *GetPALoop () { return loop; }
  97         pa_mainloop_api *GetPAApi () { return api; }
  98         pa_context_state_t GetPAState ();
  99
 100         void LockLoop ();
 101         void UnlockLoop ();
 102         void WaitLoop ();
 103         void WaitForOperation (pa_operation *op);
 104         void SignalLoop ();
 105
 106         static bool IsInstalled ();
 107 };
 108
 109 #endif /* __AUDIO_PULSE_H__ */
 110
 111 #endif /* INCLUDE_PULSE */