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 void set(void (*callback)(size_t, void*), void* userdata) {
54 struct SStateChangedCallback {
56 void (*onStateChanged)(CAudioInfo::EAudioIOState state, CAudioInfo::EAudioIOState statePrev, bool byPolicy, void* user_data);
58 SStateChangedCallback() : mUserData(nullptr), onStateChanged(nullptr) {
62 void set(void (*callback)(CAudioInfo::EAudioIOState, CAudioInfo::EAudioIOState, bool, void*), void* userdata) {
63 onStateChanged = callback;
68 onStateChanged = nullptr;
73 /* Constructor & Destructor */
75 explicit CAudioIO(CAudioInfo& audioInfo);
76 virtual ~CAudioIO() = default;
78 /* Pure Virtual Methods */
79 virtual void initialize() = 0;
80 virtual void finalize() = 0;
82 virtual void prepare() = 0;
83 virtual void unprepare() = 0;
85 virtual void pause() = 0;
86 virtual void resume() = 0;
88 /* FIXME : drain needed to be moved to sub-class */
90 virtual void flush() = 0;
92 virtual int getBufferSize() = 0;
94 /* Implemented Handlers */
95 virtual void onStream(CPulseAudioClient* pClient, size_t length);
96 virtual void onStateChanged(CAudioInfo::EAudioIOState state, bool byPolicy);
97 virtual void onStateChanged(CAudioInfo::EAudioIOState state);
100 CAudioInfo& getAudioInfo();
102 virtual void setStreamCallback(SStreamCallback callback);
103 SStreamCallback getStreamCallback();
105 virtual void setStateChangedCallback(SStateChangedCallback callback);
106 SStateChangedCallback getStateChangedCallback();
108 void setStreamInfo(sound_stream_info_h stream_info);
110 CAudioInfo::EAudioIOState getState() noexcept;
113 /* Protected Methods */
114 virtual void setInit(bool flag);
115 virtual bool isInit();
116 virtual bool IsReady();
119 void internalUnlock();
121 void internalSignal();
123 CPulseAudioClient* mpPulseAudioClient;
124 CAudioInfo mAudioInfo;
126 SStreamCallback mStreamCallback;
127 SStateChangedCallback mStateChangedCallback;
129 CAudioInfo::EAudioDirection mDirection;
130 CAudioInfo::EAudioIOState mState;
131 CAudioInfo::EAudioIOState mStatePrev;
135 pthread_mutex_t __mMutex;
136 pthread_mutex_t __mCondMutex;
137 pthread_cond_t __mCond;
142 } /* namespace tizen_media_audio */
145 #endif /* __TIZEN_MEDIA_AUDIO_IO_CAUDIO_IO_H__ */