Expect MM_SESSION_TYPE_REPLACED_BY_STREAM to skip working on backward compatibility...
[platform/core/api/audio-io.git] / src / cpp / CAudioSessionHandler.cpp
1 /*
2  * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
3  *
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
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
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.
15  */
16
17
18 #include <unistd.h>
19 #include <mm_error.h>
20 #include "CAudioIODef.h"
21
22
23 using namespace std;
24 using namespace tizen_media_audio;
25
26
27 /**
28  * class CAudioSessionHandler
29  */
30 int CAudioSessionHandler::__sCaptureRef = 0;
31
32 int CAudioSessionHandler::__pcmCaptureCountInc() {
33     int actual;
34     do {
35         actual = __sCaptureRef;
36     } while (!__sync_bool_compare_and_swap(&__sCaptureRef, actual, actual + 1));
37     AUDIO_IO_LOGD("CaptureRefCount+1 > [%d]", __sCaptureRef);
38     return __sCaptureRef;
39 }
40
41 int CAudioSessionHandler::__pcmCaptureCountDec() {
42     int actual;
43     do {
44         actual = __sCaptureRef;
45     } while (!__sync_bool_compare_and_swap(&__sCaptureRef, actual, actual - 1));
46     AUDIO_IO_LOGD("CaptureRefCount-1 > [%d]", __sCaptureRef);
47     if (__sCaptureRef < 0) {
48         AUDIO_IO_LOGE("A CaptureRef[%d] is not valid! Something is wrong!", __sCaptureRef);
49         __sCaptureRef = 0;
50     }
51     return __sCaptureRef;
52 }
53
54 int CAudioSessionHandler::__pcmCaptureCountGet() {
55     AUDIO_IO_LOGD("CaptureRefCount > [%d]", __sCaptureRef);
56     return __sCaptureRef;
57 }
58
59 int CAudioSessionHandler::__sFocusRef = 0;
60
61 int CAudioSessionHandler::__focusIdCountInc() {
62     int actual;
63     do {
64         actual = __sFocusRef;
65     } while (!__sync_bool_compare_and_swap(&__sFocusRef, actual, actual + 1));
66     AUDIO_IO_LOGD("FocusRefCount+1 > [%d]", __sFocusRef);
67     return __sFocusRef;
68 }
69
70 int CAudioSessionHandler::__focusIdCountDec() {
71     int actual;
72     do {
73         actual = __sFocusRef;
74     } while (!__sync_bool_compare_and_swap(&__sFocusRef, actual, actual - 1));
75     AUDIO_IO_LOGD("FocusRefCount-1 > [%d]", __sFocusRef);
76     return __sFocusRef;
77 }
78
79 int CAudioSessionHandler::__focusIdCountGet() {
80     /* AUDIO_IO_LOGD("FocusRefCount > [%d]", __sFocusRef); */
81     return __sFocusRef;
82 }
83
84 CAudioSessionHandler::CAudioSessionHandler(EAudioSessionType sessionType, CAudioInfo& audioInfo, IAudioSessionEventListener* listener) :
85     __mId(-1),
86     __mOptions(0),
87     __mAudioSession(sessionType),
88     __mMultimediaSession(MM_SESSION_TYPE_MEDIA),
89     __mpEventListener(listener),
90     __mIsInit(false),
91     __mSubscribeId(-1),
92     __mUseFocus(false),
93     __mFocusType(FOCUS_NONE),
94     __mState(FOCUS_IS_RELEASED),
95     __mReasonForChange(NULL),
96     __mAdditionalInfo(NULL) {
97     __mAudioInfo = audioInfo;
98 }
99
100 CAudioSessionHandler::~CAudioSessionHandler() {
101 }
102
103 CAudioError CAudioSessionHandler::__convertStreamType(EAudioSessionType type1, MMSessionType type2, int *index) {
104     unsigned int i;
105     int idx = -1;
106
107     assert(index != NULL);
108
109     if (type1 == EAudioSessionType::AUDIO_SESSION_TYPE_CAPTURE) {
110         for (i = 0 ; i < sizeof(__STREAM_TYPE_TABLE_IN) / sizeof(__STREAM_TYPE_TABLE_IN[0]) ; i++) {
111             if (__STREAM_TYPE_TABLE_IN[i].type == type2) {
112                 idx = i;
113                 break;
114             }
115         }
116     } else {
117         for (i = 0 ; i < sizeof(__STREAM_TYPE_TABLE_OUT) / sizeof(__STREAM_TYPE_TABLE_OUT[0]) ; i++) {
118             if (__STREAM_TYPE_TABLE_OUT[i].type == type2) {
119                 idx = i;
120                 break;
121             }
122         }
123     }
124
125     if (idx < 0) {
126         RET_ERROR_MSG(CAudioError::EError::ERROR_NOT_SUPPORTED, "Does not support session type.");
127     }
128     *index = idx;
129     RET_ERROR(CAudioError::EError::ERROR_NONE);
130 }
131
132 CAudioError CAudioSessionHandler::__getAsmInformation(MMSessionType *type, int *options) {
133     assert(type != NULL);
134     assert(options != NULL);
135
136     MMSessionType currentSession = MM_SESSION_TYPE_MEDIA;
137     int           sessionOptions = 0;
138
139     /* Read session information */
140     int ret = 0;
141     if ((ret = _mm_session_util_read_information(-1, (int*)&currentSession, &sessionOptions)) < 0) {
142         if (ret == (int) MM_ERROR_INVALID_HANDLE) {
143             RET_ERROR_MSG(CAudioError::EError::ERROR_INVALID_HANDLE, "Failed _mm_session_util_read_information(). Invalid handle");
144         } else {
145             RET_ERROR_MSG(CAudioError::EError::ERROR_FAILED_OPERATION, "Failed _mm_session_util_read_information(). Not exist");
146         }
147     }
148
149     *type    = currentSession;
150     *options = sessionOptions;
151
152     RET_ERROR(CAudioError::EError::ERROR_NONE);
153 }
154
155 bool CAudioSessionHandler::__isFocusRequired(MMSessionType type, int options) {
156     if ((options & MM_SESSION_OPTION_PAUSE_OTHERS)
157         || ((type != MM_SESSION_TYPE_MEDIA) && (type != MM_SESSION_TYPE_MEDIA_RECORD)))
158         return true;
159     else
160         return false;
161 }
162
163 int CAudioSessionHandler::getId() {
164     return __mId;
165 }
166
167 int CAudioSessionHandler::getOptions() {
168     return __mOptions;
169 }
170
171 CAudioSessionHandler::EAudioSessionType CAudioSessionHandler::getAudioSession() {
172     return __mAudioSession;
173 }
174
175 MMSessionType CAudioSessionHandler::getMultimediaSession() {
176     return __mMultimediaSession;
177 }
178
179 int CAudioSessionHandler::getSubscribeId() {
180     return __mSubscribeId;
181 }
182
183 CAudioInfo CAudioSessionHandler::getAudioInfo() {
184     return __mAudioInfo;
185 }
186
187 void CAudioSessionHandler::__sound_pcm_signal_cb(mm_sound_signal_name_t signal, int value, void *user_data) {
188     assert(user_data);
189
190     AUDIO_IO_LOGD("[signal:%d], [value:%d], [user_data:0x%x]", signal, value, user_data);
191
192     CAudioSessionHandler* pHandler = static_cast<CAudioSessionHandler*>(user_data);
193     if (pHandler->__mpEventListener != NULL) {
194         pHandler->__mpEventListener->onSignal(pHandler, signal, value);
195     }
196 }
197
198 void CAudioSessionHandler::initialize() throw (CAudioError) {
199     AUDIO_IO_LOGD("");
200     if (__mIsInit == true) {
201         return;
202     }
203
204     MMSessionType currentSession = MM_SESSION_TYPE_MEDIA;
205     int           sessionOptions = 0;  // Mix with others by default
206
207     CAudioError err = __getAsmInformation(&currentSession, &sessionOptions);
208     if (err == CAudioError::EError::ERROR_NONE) {
209         if (currentSession == MM_SESSION_TYPE_REPLACED_BY_STREAM) {
210             __mUseFocus = false;
211             AUDIO_IO_LOGD("Stream info. was created outside, skip audio focus concept internally!");
212         } else {
213             // Session was configured before, use focus callback
214             __mUseFocus = true;
215             AUDIO_IO_LOGD("Use audio focus concept internally!");
216         }
217     } else {
218         if (err == CAudioError::EError::ERROR_INVALID_HANDLE) {
219             // No session, No stream_info, No focus watch callback before
220             // Use focus watch callback with signal subscribe
221             unsigned int subscribe_id;
222             int errorCode = mm_sound_subscribe_signal(MM_SOUND_SIGNAL_RELEASE_INTERNAL_FOCUS, &subscribe_id, __sound_pcm_signal_cb, static_cast<void*>(this));
223             if (errorCode != MM_ERROR_NONE) {
224                 THROW_ERROR_MSG_FORMAT(CAudioError::EError::ERROR_POLICY_BLOCKED, "Failed mm_sound_subscribe_signal() err:0x%x", errorCode);
225             }
226
227             __mSubscribeId = (int)subscribe_id;
228             AUDIO_IO_LOGD("Subscribed mm_sound signal");
229
230             sessionOptions = 0;  // Mix with others by default
231             __mUseFocus = true;
232             AUDIO_IO_LOGD("Use audio focus(watch) concept internally!");
233         } else {
234             __mUseFocus = false;
235             AUDIO_IO_LOGD("Skip audio focus concept!");
236         }
237
238         if (__mAudioSession == EAudioSessionType::AUDIO_SESSION_TYPE_CAPTURE) {
239             AUDIO_IO_LOGD("Set default \"Media_Record\" type");
240             currentSession = MM_SESSION_TYPE_MEDIA_RECORD;
241         } else {
242             AUDIO_IO_LOGD("Set default \"Media\" type");
243             currentSession = MM_SESSION_TYPE_MEDIA;
244         }
245     }
246
247     // Updates session information
248     __mMultimediaSession = currentSession;
249     __mOptions           = sessionOptions;
250
251     if (this->__mAudioSession == EAudioSessionType::AUDIO_SESSION_TYPE_CAPTURE) {
252         __pcmCaptureCountInc();
253     }
254
255     __mIsInit = true;
256 }
257
258 void CAudioSessionHandler::finalize() {
259     AUDIO_IO_LOGD("");
260     if (__mIsInit == false) {
261         return;
262     }
263
264     if (__mAudioSession == EAudioSessionType::AUDIO_SESSION_TYPE_CAPTURE) {
265         __pcmCaptureCountDec();
266     }
267
268     if (__mSubscribeId >= 0) {
269         mm_sound_unsubscribe_signal(__mSubscribeId);
270     }
271
272     __mIsInit = false;
273 }
274
275 bool CAudioSessionHandler::isSkipSessionEvent() throw (CAudioError) {
276     bool ret = false;
277
278     // To be regarded...
279 #if 0
280     /* Only Support below Event */
281     if (mEvent != ASM_EVENT_CALL              && mEvent != ASM_EVENT_VOIP              &&
282         mEvent != ASM_EVENT_VIDEOCALL         && mEvent != ASM_EVENT_VOICE_RECOGNITION &&
283         mEvent != ASM_EVENT_MMCAMCORDER_AUDIO && mEvent != ASM_EVENT_MMCAMCORDER_VIDEO) {
284
285         // Check AudioType
286         switch (__mAudioInfo.getAudioType()) {
287         case CAudioInfo::AUDIO_IN_TYPE_MEDIA:
288         case CAudioInfo::AUDIO_IN_TYPE_VOICECONTROL:
289             ret = false;
290             break;
291
292         case CAudioInfo::AUDIO_IN_TYPE_MIRRORING:
293         case CAudioInfo::AUDIO_IN_TYPE_LOOPBACK:
294             ret = true;
295             break;
296
297         default:
298             return false;
299         }
300
301         if (ret == true) {
302             int captureCount = CAudioSessionHandler::__pcmCaptureCountGet();
303             if (captureCount == 1) {/* If this is last one */
304                 /* Recover session information to MEDIA */
305                 int sessionResult = _mm_session_util_write_information(-1, MM_SESSION_TYPE_MEDIA, __mOptions);
306                 if (sessionResult != 0) {
307                     THROW_ERROR_MSG_FORMAT(CAudioError::ERROR_INTERNAL_OPERATION, "Failed _mm_session_util_write_information() ret:%d", sessionResult);
308                 }
309             }
310         }
311     }
312 #endif
313
314     return ret;
315 }
316
317 void CAudioSessionHandler::__sound_pcm_focus_cb(int id, mm_sound_focus_type_e focus_type, mm_sound_focus_state_e state, const char *reason_for_change, const char *additional_info, void *user_data) {
318     assert(user_data);
319
320     AUDIO_IO_LOGD("[id:%d], [focus_type:%d], [state:%d], [reason_for_change:%s], [additional_info:%s], [user_data:0x%x]", id, focus_type, state, reason_for_change, additional_info, user_data);
321
322     CAudioSessionHandler* pHandler = static_cast<CAudioSessionHandler*>(user_data);
323     pHandler->__mFocusType       = focus_type;
324     pHandler->__mState           = state;
325     pHandler->__mReasonForChange = (char *)reason_for_change;
326     pHandler->__mAdditionalInfo  = (char *)additional_info;
327
328     if (pHandler->__mpEventListener != NULL) {
329         pHandler->__mpEventListener->onInterrupt(pHandler, id, focus_type, state, reason_for_change, additional_info);
330     }
331
332     return;
333 }
334
335 void CAudioSessionHandler::__sound_pcm_focus_watch_cb(int id, mm_sound_focus_type_e focus_type, mm_sound_focus_state_e state, const char *reason_for_change, const char *additional_info, void *user_data) {
336     AUDIO_IO_LOGD("[id:%d], [focus_type:%d], [state:%d], [reason_for_change:%s], [additional_info:%s], [user_data:0x%x]", id, focus_type, state, reason_for_change, additional_info, user_data);
337
338     CAudioSessionHandler::__sound_pcm_focus_cb(-1, focus_type, state, reason_for_change, additional_info, user_data);
339
340     return;
341 }
342
343 void CAudioSessionHandler::registerSound() throw (CAudioError) {
344     if (__mIsInit == false) {
345         THROW_ERROR_MSG(CAudioError::EError::ERROR_NOT_INITIALIZED, "Doesn't initialize CAudioSessionHandler");
346     }
347
348     if (__mUseFocus == true) {
349         if (__mId >= 0) {
350             THROW_ERROR_MSG_FORMAT(CAudioError::EError::ERROR_POLICY_BLOCKED, "Already registered [id:%d]", __mId);
351         }
352
353         int errorCode = 0;
354
355         if (__isFocusRequired(__mMultimediaSession, __mOptions)) {
356             int index = 0;
357             CAudioError err = __convertStreamType(__mAudioSession, __mMultimediaSession, &index);
358             if (err != CAudioError::EError::ERROR_NONE) {
359                 throw err;
360             }
361
362             errorCode = mm_sound_focus_get_id(&__mId);
363             if (errorCode != MM_ERROR_NONE) {
364                 THROW_ERROR_MSG_FORMAT(CAudioError::EError::ERROR_POLICY_BLOCKED, "Failed mm_sound_focus_get_id() err:0x%x", errorCode);
365             }
366
367             // Register focus callback
368             errorCode = mm_sound_register_focus_for_session(__mId,
369                                                 getpid(),
370                                                 __mAudioSession == EAudioSessionType::AUDIO_SESSION_TYPE_CAPTURE ? __STREAM_TYPE_TABLE_IN[index].name : __STREAM_TYPE_TABLE_OUT[index].name,
371                                                 __sound_pcm_focus_cb,
372                                                 static_cast<void*>(this));
373             if (errorCode != MM_ERROR_NONE) {
374                 THROW_ERROR_MSG_FORMAT(CAudioError::EError::ERROR_POLICY_BLOCKED, "Failed mm_sound_register_focus_for_session() err:0x%x", errorCode);
375             }
376
377             __focusIdCountInc();
378
379             AUDIO_IO_LOGD("Focus callback registered successfully [id:%d]", __mId);
380         } else if (!(__mOptions & MM_SESSION_OPTION_UNINTERRUPTIBLE)) {
381             // Register focus watch callback
382             errorCode = mm_sound_set_focus_watch_callback_for_session(getpid(), FOCUS_FOR_BOTH, __sound_pcm_focus_watch_cb, static_cast<void*>(this), &__mId);
383             if (errorCode < 0) {
384                 THROW_ERROR_MSG_FORMAT(CAudioError::EError::ERROR_POLICY_BLOCKED, "Failed mm_sound_set_focus_watch_callback_for_session() err:0x%x", errorCode);
385             }
386
387             __focusIdCountInc();
388
389             AUDIO_IO_LOGD("Focus watch callback registered successfully [id:%d]", __mId);
390         }
391     }
392 }
393
394 void CAudioSessionHandler::unregisterSound() throw (CAudioError) {
395     if (__mIsInit == false) {
396         THROW_ERROR_MSG(CAudioError::EError::ERROR_NOT_INITIALIZED, "Doesn't initialize CAudioSessionHandler");
397     }
398
399     if (__mUseFocus == true) {
400         if (__mId < 0) {
401             THROW_ERROR_MSG_FORMAT(CAudioError::EError::ERROR_POLICY_BLOCKED, "Did not register [id:%d]", __mId);
402         }
403
404         int errorCode = 0;
405
406         if (__isFocusRequired(__mMultimediaSession, __mOptions)) {
407             // Unregister focus callback
408             errorCode = mm_sound_unregister_focus(__mId);
409             if (errorCode != MM_ERROR_NONE) {
410                 THROW_ERROR_MSG_FORMAT(CAudioError::EError::ERROR_POLICY_BLOCKED, "Failed mm_sound_unregister_focus() err:0x%x", errorCode);
411             }
412
413             __focusIdCountDec();
414
415             AUDIO_IO_LOGD("Focus callback unregistered successfully [id:%d]", __mId);
416             __mId = -1;
417         } else if (!(__mOptions & MM_SESSION_OPTION_UNINTERRUPTIBLE)) {
418             // Unregister focus watch callback.
419             errorCode = mm_sound_unset_focus_watch_callback(__mId);
420             if (errorCode < 0) {
421                 THROW_ERROR_MSG_FORMAT(CAudioError::EError::ERROR_POLICY_BLOCKED, "Failed mm_sound_unset_focus_watch_callback() err:0x%x", errorCode);
422             }
423
424             __focusIdCountDec();
425
426             AUDIO_IO_LOGD("Focus watch callback unregistered successfully [id:%d]", __mId);
427             __mId = -1;
428         }
429     }
430 }
431
432 void CAudioSessionHandler::updatePlaying() throw (CAudioError) {
433     if (__mIsInit == false) {
434         THROW_ERROR_MSG(CAudioError::EError::ERROR_NOT_INITIALIZED, "Doesn't initialize CAudioSessionHandler");
435     }
436
437     if (__mUseFocus && __isFocusRequired(__mMultimediaSession, __mOptions)) {
438         if (__mId >= 0) {
439             int ret = mm_sound_acquire_focus(__mId, FOCUS_FOR_BOTH, "audio-io acquire focus");
440             if (ret != MM_ERROR_NONE) {
441                 THROW_ERROR_MSG_FORMAT(CAudioError::EError::ERROR_POLICY_BLOCKED, "Failed mm_sound_acquire_focus() err:0x%x", ret);
442             }
443             AUDIO_IO_LOGD("Focus acquired successfully [id:%d]", __mId);
444         }
445     }
446 }
447
448 void CAudioSessionHandler::updateStop() throw (CAudioError) {
449     if (__mIsInit == false) {
450         THROW_ERROR_MSG(CAudioError::EError::ERROR_NOT_INITIALIZED, "Doesn't initialize CAudioSessionHandler");
451     }
452
453     if (__mUseFocus && __isFocusRequired(__mMultimediaSession, __mOptions)) {
454         if (__mId >= 0) {
455             int ret = mm_sound_release_focus(__mId, FOCUS_FOR_BOTH, "audio-io release focus");
456             if (ret != MM_ERROR_NONE) {
457                 THROW_ERROR_MSG_FORMAT(CAudioError::EError::ERROR_POLICY_BLOCKED, "Failed mm_sound_release_focus() err:0x%x", ret);
458             }
459             AUDIO_IO_LOGD("Focus released successfully [id:%d]", __mId);
460         }
461     }
462 }
463
464 void CAudioSessionHandler::disableSessionHandler() throw (CAudioError) {
465     CAudioSessionHandler::updateStop();
466     CAudioSessionHandler::unregisterSound();
467
468     CAudioSessionHandler::__mUseFocus = false;
469 }
470
471 /**
472  * class IAudioSessionEventListener
473  */
474 IAudioSessionEventListener::EInterruptCode IAudioSessionEventListener::convertInterruptedCode(int code, const char *reason_for_change) {
475     EInterruptCode e = EInterruptCode::INTERRUPT_COMPLETED;
476
477     switch (code)
478     {
479     case FOCUS_IS_ACQUIRED:
480         e = EInterruptCode::INTERRUPT_COMPLETED;
481         break;
482
483     case FOCUS_IS_RELEASED:
484         if (!strcmp(reason_for_change, "media"))              e = EInterruptCode::INTERRUPT_BY_MEDIA;
485         if (!strcmp(reason_for_change, "radio"))              e = EInterruptCode::INTERRUPT_BY_MEDIA;
486         if (!strcmp(reason_for_change, "loopback"))           e = EInterruptCode::INTERRUPT_BY_MEDIA;
487         if (!strcmp(reason_for_change, "system"))             e = EInterruptCode::INTERRUPT_BY_MEDIA;
488         if (!strcmp(reason_for_change, "alarm"))              e = EInterruptCode::INTERRUPT_BY_ALARM;
489         if (!strcmp(reason_for_change, "notification"))       e = EInterruptCode::INTERRUPT_BY_NOTIFICATION;
490         if (!strcmp(reason_for_change, "emergency"))          e = EInterruptCode::INTERRUPT_BY_EMERGENCY;
491         if (!strcmp(reason_for_change, "voice-information"))  e = EInterruptCode::INTERRUPT_BY_MEDIA;  //for what?
492         if (!strcmp(reason_for_change, "voice-recognition"))  e = EInterruptCode::INTERRUPT_BY_MEDIA;  //for what?
493         if (!strcmp(reason_for_change, "ringtone-voip"))      e = EInterruptCode::INTERRUPT_BY_MEDIA;  //for what?
494         if (!strcmp(reason_for_change, "ringtone-call"))      e = EInterruptCode::INTERRUPT_BY_MEDIA;  //for what?
495         if (!strcmp(reason_for_change, "voip"))               e = EInterruptCode::INTERRUPT_BY_MEDIA;  //for what?
496         if (!strcmp(reason_for_change, "call-voice"))         e = EInterruptCode::INTERRUPT_BY_MEDIA;  //for what?
497         if (!strcmp(reason_for_change, "call-video"))         e = EInterruptCode::INTERRUPT_BY_MEDIA;  //for what?
498         break;
499     }
500
501     return e;
502 }