2 * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef __TIZEN_MEDIA_AUDIO_IO_CAUDIO_IO_H__
18 #define __TIZEN_MEDIA_AUDIO_IO_CAUDIO_IO_H__
20 #include <sound_manager.h>
25 namespace tizen_media_audio {
30 * You can't take this object directly.
32 class IPulseStreamListener;
33 class CAudioIO : public IPulseStreamListener {
35 struct SStreamCallback {
37 void (*onStream)(size_t nbytes, void* user_data);
39 SStreamCallback() : mUserData(nullptr), onStream(nullptr)
43 struct SStateChangedCallback {
45 void (*onStateChanged)(CAudioInfo::EAudioIOState state, CAudioInfo::EAudioIOState statePrev, bool byPolicy, void* user_data);
47 SStateChangedCallback() : mUserData(nullptr), onStateChanged(nullptr)
51 /* Constructor & Destructor */
53 explicit CAudioIO(CAudioInfo& audioInfo);
54 virtual ~CAudioIO() = default;
56 /* Pure Virtual Methods */
57 virtual void initialize() = 0;
58 virtual void finalize() = 0;
60 virtual void prepare() = 0;
61 virtual void unprepare() = 0;
63 virtual void pause() = 0;
64 virtual void resume() = 0;
66 /* FIXME : drain needed to be moved to sub-class */
68 virtual void flush() = 0;
70 virtual int getBufferSize() = 0;
72 /* Implemented Handlers */
73 virtual void onStream(CPulseAudioClient* pClient, size_t length);
74 virtual void onStateChanged(CAudioInfo::EAudioIOState state, bool byPolicy);
75 virtual void onStateChanged(CAudioInfo::EAudioIOState state);
78 CAudioInfo& getAudioInfo();
80 virtual void setStreamCallback(SStreamCallback callback);
81 SStreamCallback getStreamCallback();
83 virtual void setStateChangedCallback(SStateChangedCallback callback);
84 SStateChangedCallback getStateChangedCallback();
86 void setStreamInfo(sound_stream_info_h stream_info);
88 CAudioInfo::EAudioIOState getState() noexcept;
91 /* Protected Methods */
92 virtual void setInit(bool flag);
93 virtual bool isInit();
94 virtual bool IsReady();
97 void internalUnlock();
99 void internalSignal();
101 CPulseAudioClient* mpPulseAudioClient;
102 CAudioInfo mAudioInfo;
104 SStreamCallback mStreamCallback;
105 SStateChangedCallback mStateChangedCallback;
107 CAudioInfo::EAudioDirection mDirection;
108 CAudioInfo::EAudioIOState mState;
109 CAudioInfo::EAudioIOState mStatePrev;
113 pthread_mutex_t __mMutex;
114 pthread_mutex_t __mCondMutex;
115 pthread_cond_t __mCond;
120 } /* namespace tizen_media_audio */
123 #endif /* __TIZEN_MEDIA_AUDIO_IO_CAUDIO_IO_H__ */