plugins/wakeup-manager/inc/wakeup_engine_manager.h

   1 /*
   2  * Copyright 2018  Samsung Electronics Co., Ltd
   3  *
   4  * Licensed under the Flora License, Version 1.1 (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://floralicense.org/license/
   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 #ifndef _WAKEUP_ENGINE_MANAGER_H_
  18 #define _WAKEUP_ENGINE_MANAGER_H_
  19
  20 #include "wakeup_manager_wrapper.h"
  21
  22 #include <atomic>
  23 #include <string>
  24 #include <thread>
  25 #include <vector>
  26 #include <set>
  27
  28 namespace multiassistant
  29 {
  30 namespace wakeup
  31 {
  32
  33 using namespace std;
  34
  35 /**************************************************************************************
  36  *** Definitions for wakeup engine interface
  37  *************************************************************************************/
  38 #define MA_WAKEUP_ENGINE_PATH                                   tzplatform_mkpath(tzplatform_getid("TZ_SYS_RO_SHARE"), "multiassistant/engines")
  39 /* Need to check whether this dedicated engine path also needs to be configurable */
  40 #define MA_WAKEUP_DEDICATED_ENGINE_PATH                 "shared/lib/libwakeup-engine.so"
  41
  42 /* Interfaces without version information */
  43 #define MA_WAKEUP_ENGINE_FUNC_INITIALIZE "wakeup_engine_initialize"
  44 typedef int (*wakeup_engine_initialize)(void);
  45 #define MA_WAKEUP_ENGINE_FUNC_DEINITIALIZE "wakeup_engine_deinitialize"
  46 typedef int (*wakeup_engine_deinitialize)(void);
  47 #define MA_WAKEUP_ENGINE_FUNC_ACTIVATE "wakeup_engine_activate"
  48 typedef int (*wakeup_engine_activate)(void);
  49 #define MA_WAKEUP_ENGINE_FUNC_DEACTIVATE "wakeup_engine_deactivate"
  50 typedef int (*wakeup_engine_deactivate)(void);
  51 #define MA_WAKEUP_ENGINE_FUNC_ADD_WAKEUP_WORD "wakeup_engine_add_wakeup_word"
  52 typedef int (*wakeup_engine_add_wakeup_word)(const char* appid, const char* wakeup_word, const char* language);
  53 #define MA_WAKEUP_ENGINE_FUNC_ADD_LANGUAGE "wakeup_engine_add_language"
  54 typedef int (*wakeup_engine_add_language)(const char* appid, const char* language);
  55 #define MA_WAKEUP_ENGINE_FUNC_SET_LANGUAGE "wakeup_engine_set_language"
  56 typedef int (*wakeup_engine_set_language)(const char* language);
  57 #define MA_WAKEUP_ENGINE_FUNC_UPDATE_MANAGER_STATE "wakeup_engine_update_manager_state"
  58 typedef int (*wakeup_engine_update_manager_state)(wakeup_manager_state_e state);
  59 #define MA_WAKEUP_ENGINE_FUNC_UPDATE_RECOGNITION_RESULT "wakeup_engine_update_recognition_result"
  60 typedef int (*wakeup_engine_update_recognition_result)(const char* appid, int result);
  61 #define MA_WAKEUP_ENGINE_FUNC_SET_AUDIO_FORMAT "wakeup_engine_set_audio_format"
  62 typedef int (*wakeup_engine_set_audio_format)(int rate, int channel, int audio_type);
  63 #define MA_WAKEUP_ENGINE_FUNC_GET_AUDIO_FORMAT "wakeup_engine_get_audio_format"
  64 typedef int (*wakeup_engine_get_audio_format)(int* rate, int* channel, int* audio_type);
  65 #define MA_WAKEUP_ENGINE_FUNC_FEED_AUDIO_DATA "wakeup_engine_feed_audio_data"
  66 typedef int (*wakeup_engine_feed_audio_data)(long time, void* data, int len);
  67 #define MA_WAKEUP_ENGINE_FUNC_GET_UTTERANCE_DATA_COUNT "wakeup_engine_get_utterance_data_count"
  68 typedef int (*wakeup_engine_get_utterance_data_count)(void);
  69 #define MA_WAKEUP_ENGINE_FUNC_GET_UTTERANCE_DATA "wakeup_engine_get_utterance_data"
  70 typedef int (*wakeup_engine_get_utterance_data)(int index, wakeup_speech_data *data);
  71 #define MA_WAKEUP_ENGINE_FUNC_SET_ASSISTANT_SPECIFIC_COMMAND "wakeup_engine_set_assistant_specific_command"
  72 typedef int (*wakeup_engine_set_assistant_specific_command)(const char* appid, const char* command);
  73 #define MA_WAKEUP_ENGINE_FUNC_SET_WAKEUP_EVENT_CALLBACK "wakeup_engine_set_wakeup_event_callback"
  74 typedef int (*wakeup_engine_set_wakeup_event_callback)(wakeup_service_wakeup_event_cb callback, void* user_data);
  75 #define MA_WAKEUP_ENGINE_FUNC_SET_SPEECH_STATUS_CALLBACK "wakeup_engine_set_speech_status_callback"
  76 typedef int (*wakeup_engine_set_speech_status_callback)(wakeup_service_speech_status_cb callback, void* user_data);
  77 #define MA_WAKEUP_ENGINE_FUNC_SET_ERROR_CALLBACK "wakeup_engine_set_error_callback"
  78 typedef int (*wakeup_engine_set_error_callback)(wakeup_service_error_cb callback, void* user_data);
  79 #define MA_WAKEUP_ENGINE_FUNC_SET_AUDIO_DATA_REQUIRE_STATUS_CALLBACK "wakeup_engine_set_audio_data_require_status_callback"
  80 typedef int (*wakeup_engine_set_audio_data_require_status_callback)(wakeup_service_audio_data_require_status_cb callback, void* user_data);
  81
  82 /* Interfaces after version 1 */
  83 #define MA_WAKEUP_ENGINE_FUNC_GET_VERSION "wakeup_engine_get_version"
  84 typedef int (*wakeup_engine_get_version)(int* version);
  85
  86 typedef struct {
  87         wakeup_engine_initialize                                                                initialize;
  88         wakeup_engine_deinitialize                                                              deinitialize;
  89         wakeup_engine_activate                                                                  activate;
  90         wakeup_engine_deactivate                                                                deactivate;
  91         wakeup_engine_add_wakeup_word                                                   add_wakeup_word;
  92         wakeup_engine_add_language                                                              add_language;
  93         wakeup_engine_set_language                                                              set_language;
  94         wakeup_engine_update_manager_state                                              update_manager_state;
  95         wakeup_engine_update_recognition_result                                 update_recognition_result;
  96         wakeup_engine_set_audio_format                                                  set_audio_format;
  97         wakeup_engine_get_audio_format                                                  get_audio_format;
  98         wakeup_engine_feed_audio_data                                                   feed_audio_data;
  99         wakeup_engine_get_utterance_data_count                                  get_utterance_data_count;
 100         wakeup_engine_get_utterance_data                                                get_utterance_data;
 101         wakeup_engine_get_version                                                               get_version;
 102         wakeup_engine_set_assistant_specific_command                    set_assistant_specific_command;
 103         wakeup_engine_set_wakeup_event_callback                                 set_wakeup_event_callback;
 104         wakeup_engine_set_speech_status_callback                                set_speech_status_callback;
 105         wakeup_engine_set_error_callback                                                set_error_callback;
 106         wakeup_engine_set_audio_data_require_status_callback    set_audio_data_require_status_callback;
 107 } wakeup_engine_interface;
 108
 109 class IEngineEventObserver
 110 {
 111 public:
 112         virtual ~IEngineEventObserver() = default;
 113         virtual bool on_wakeup_event(string engine_name, wakeup_event_info wakeup_info) = 0;
 114         virtual bool on_speech_status(string engine_name, wakeup_service_speech_status_e status) = 0;
 115         virtual bool on_error(string engine_name, int error_code, string error_message) = 0;
 116         virtual bool on_audio_data_require_status(string engine_name, bool require) = 0;
 117
 118         virtual bool on_streaming_audio_data(
 119                 wakeup_speech_streaming_event_e event, void* buffer, unsigned int len) = 0;
 120 };
 121
 122 class CWakeupEngineManager
 123 {
 124 public:
 125         CWakeupEngineManager();
 126         CWakeupEngineManager(IEngineEventObserver *observer);
 127         virtual ~CWakeupEngineManager();
 128
 129         CWakeupEngineManager(const CWakeupEngineManager&) = delete;
 130         CWakeupEngineManager& operator=(const CWakeupEngineManager&) = delete;
 131
 132         void initialize();
 133         void deinitialize();
 134
 135         void subscribe(IEngineEventObserver *observer);
 136         void unsubscribe(IEngineEventObserver *observer);
 137
 138         bool get_audio_data_required();
 139         void set_selected_wakeup_info(wakeup_event_info wakeup_info);
 140
 141         bool set_language(string language);
 142         void set_assistant_activated(string appid, bool activated);
 143
 144         void start_streaming_current_utterance_data();
 145         void stop_streaming_current_utterance_data();
 146
 147         void update_manager_state(wakeup_manager_state_e state);
 148         void update_recognition_result(string appid, int result);
 149
 150         void engine_add_target_assistant(string engine_name, string appid);
 151         void engine_add_wakeup_word(string appid, string wakeup_word, string language);
 152         void engine_set_assistant_specific_command(string appid, string command);
 153         void engine_feed_audio_data(long time, void* data, int len);
 154
 155         bool on_wakeup_event(string engine_name, wakeup_event_info wakeup_info);
 156         bool on_speech_status(string engine_name, wakeup_service_speech_status_e status);
 157         bool on_error(string engine_name, int error_code, string error_message);
 158         bool on_audio_data_require_status(string engine_name, bool require);
 159 private:
 160         typedef struct {
 161                 int version;
 162                 string engine_name;
 163                 bool activated{false};
 164                 bool audio_data_require_status{false};
 165                 string engine_path;
 166                 wakeup_engine_interface interface{nullptr, };
 167                 vector<string> assistant_list;
 168                 set<string> activated_assistants;
 169                 void *engine_handle{nullptr};
 170         } EngineInfo;
 171
 172         void add_engine_directory(string name, string path);
 173         void add_engine(string name, string path);
 174
 175         vector<IEngineEventObserver*> mObservers;
 176
 177         void streaming_speech_data_thread_func();
 178
 179         vector<EngineInfo> mEngineInfo;
 180         const EngineInfo* mSelectedEngine{nullptr};
 181         bool mAudioDataRequired{false};
 182
 183         thread mStreamingThread;
 184         atomic_bool mStopStreamingThread{false};
 185 };
 186
 187 } // wakeup
 188 } // multiassistant
 189
 190 #endif /* _WAKEUP_ENGINE_MANAGER_H_ */