--- /dev/null
+
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--- /dev/null
+/*
+* Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
+*
+* Licensed under the Apache License, Version 2.0 (the License);
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an AS IS BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+
+using System;
+using System.Runtime.InteropServices;
+using Tizen.Uix.SttEngine;
+using static Tizen.Uix.SttEngine.Engine;
+
+/// <summary>
+/// Partial Interop Class
+/// </summary>
+internal static partial class Interop
+{
+ /// <summary>
+ /// SttEngine Interop Class
+ /// </summary>
+ internal static class SttEngine
+ {
+ internal static string LogTag = "Tizen.Uix.SttEngine";
+
+ private const int ErrorStt = -0x02F00000;
+
+ public enum ErrorCode
+ {
+ None = Tizen.Internals.Errors.ErrorCode.None, /**< Successful */
+ OutOfMemory = Tizen.Internals.Errors.ErrorCode.OutOfMemory, /**< Out of Memory */
+ IoError = Tizen.Internals.Errors.ErrorCode.IoError, /**< I/O error */
+ InvalidParameter = Tizen.Internals.Errors.ErrorCode.InvalidParameter, /**< Invalid parameter */
+ NetworkDown = Tizen.Internals.Errors.ErrorCode.Networkdown, /**< Network down(Out of network) */
+ InvalidState = ErrorStt | 0x01, /**< Invalid state */
+ InvalidLanguage = ErrorStt | 0x02, /**< Invalid language */
+ OperationFailed = ErrorStt | 0x04, /**< Operation failed */
+ NotSupportedFeature = ErrorStt | 0x05, /**< Not supported feature of current engine */
+ NotSupported = Tizen.Internals.Errors.ErrorCode.NotSupported, /**< Device or resource busy */
+ PermissionDenied = Tizen.Internals.Errors.ErrorCode.PermissionDenied, /**< Permission denied */
+ RecordingTimedOut = ErrorStt | 0x06, /**< Recording timed out */
+ };
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error InitializeCb();
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error DeinitializeCb();
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error ForEachSupportedLangsCb(SupportedLanguages cb, IntPtr userData);
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error IsValidLanguageCb(IntPtr language, IntPtr isValid);
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate bool SupportSilenceDetectionCb();
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error SupportRecognitionTypeCb(string type, out bool isSupported);
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error GetRecordingFormatCb(out AudioType types, out int rate, out int channels);
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error SetSilenceDetectionCb(bool isSet);
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error CheckAppAgreedCb(string appid, out bool isAgreed);
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate bool NeedAppCredentialCb();
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error ForEachResultTimeCb(IntPtr timeInfo, ResultTime callback, IntPtr userData);
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error StartCb(IntPtr language, IntPtr type, IntPtr appid, IntPtr credential, IntPtr userData);
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error SetRecordingDataCb(string data, uint length);
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error StopCb();
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error CancelCb();
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error GetInfoCb(out IntPtr engineUuid, out IntPtr engineName, out IntPtr engineSetting, out IntPtr useNetwork);
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error PrivateDataSetCb(string key, string data);
+
+ [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+ internal delegate Error PrivateDataRequestedCb(string key, out string data);
+
+ [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+ internal struct RequestCallbackStruct
+ {
+ internal int version;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal GetInfoCb getInfo;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal InitializeCb initialize;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal DeinitializeCb deinitialize;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal ForEachSupportedLangsCb supportedLanaguge;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal IsValidLanguageCb validLanaguage;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal SupportSilenceDetectionCb silence;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal SupportRecognitionTypeCb recognitionType;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal GetRecordingFormatCb recordingFormat;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal ForEachResultTimeCb resultTime;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal SetSilenceDetectionCb silenceDetection;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal StartCb start;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal SetRecordingDataCb recordingData;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal StopCb stop;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal CancelCb cancel;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal CheckAppAgreedCb checkAppAgreed;
+ [MarshalAs(UnmanagedType.FunctionPtr)]
+ internal NeedAppCredentialCb needAppCredential;
+ };
+
+ internal sealed class CallbackStructGCHandle : IDisposable
+ {
+ internal RequestCallbackStruct CallbackStruct;
+ internal GCHandle CallbackStructHandle;
+ public CallbackStructGCHandle()
+ {
+ CallbackStruct = new RequestCallbackStruct();
+ CallbackStructHandle = GCHandle.Alloc(CallbackStruct);
+ }
+
+ #region IDisposable Support
+ private bool disposedValue = false;
+
+ void Dispose(bool disposing)
+ {
+ Tizen.Log.Info(LogTag, "In Dispose");
+ if (!disposedValue)
+ {
+ if (disposing)
+ {
+ Tizen.Log.Info(LogTag, "In Dispose free called");
+ CallbackStructHandle.Free();
+ }
+
+ disposedValue = true;
+ }
+ }
+
+ public void Dispose()
+ {
+ Dispose(true);
+ }
+ #endregion
+ }
+
+ [DllImport(Libraries.SttEngine, EntryPoint = "stte_main")]
+ internal static extern Error STTEMain(int argc, string[] argv, IntPtr callback);
+
+ [DllImport(Libraries.SttEngine, EntryPoint = "stte_send_result")]
+ internal static extern Error STTESendResult(ResultEvent resultEvent, string type, string[] result, int resultCount, string msg, IntPtr timeInfo, IntPtr userData);
+
+ [DllImport(Libraries.SttEngine, EntryPoint = "stte_send_error")]
+ internal static extern Error STTESendError(Error error, string msg);
+
+ [DllImport(Libraries.SttEngine, EntryPoint = "stte_send_speech_status")]
+ internal static extern Error STTESendSpeechStatus(SpeechStatus status, IntPtr userData);
+
+ [DllImport(Libraries.SttEngine, EntryPoint = "stte_set_private_data_set_cb")]
+ internal static extern Error STTESetPrivateDataSetCb(PrivateDataSetCb callbackFunc);
+
+ [DllImport(Libraries.SttEngine, EntryPoint = "stte_set_private_data_requested_cb")]
+ internal static extern Error STTESetPrivateDataRequestedCb(PrivateDataRequestedCb callbackFunc);
+ }
+}
--- /dev/null
+/*
+* Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
+*
+* Licensed under the Apache License, Version 2.0 (the License);
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an AS IS BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+using System;
+using System.Runtime.InteropServices;
+using static Interop.SttEngine;
+
+namespace Tizen.Uix.SttEngine
+{
+ /// <summary>
+ /// Enumeration for audio type.
+ /// </summary>
+ public enum AudioType
+ {
+ /// <summary>
+ /// Signed 16bit audio type, Little endian
+ /// </summary>
+ PcmS16Le = 0,
+ /// <summary>
+ /// Unsigned 8bit audio type
+ /// </summary>
+ PcmU8
+ };
+
+ /// <summary>
+ /// Enumeration for result.
+ /// </summary>
+ public enum ResultEvent
+ {
+ /// <summary>
+ /// Event when either the full matched or the final result is delivered
+ /// </summary>
+ FinalResult = 0,
+ /// <summary>
+ /// Event when the partial matched result is delivered
+ /// </summary>
+ PartialResult,
+ /// <summary>
+ /// Event when the recognition has failed
+ /// </summary>
+ Error
+ };
+
+ /// <summary>
+ /// Enumeration for result time.
+ /// </summary>
+ public enum TimeEvent
+ {
+ /// <summary>
+ /// Event when the token is beginning type
+ /// </summary>
+ Beginning = 0,
+ /// <summary>
+ /// Event when the token is middle type
+ /// </summary>
+ Middle = 1,
+ /// <summary>
+ /// Event when the token is end type
+ /// </summary>
+ End = 2
+ };
+
+ /// <summary>
+ /// Enumeration for speech status.
+ /// </summary>
+ public enum SpeechStatus
+ {
+ /// <summary>
+ /// Beginning point of speech is detected
+ /// </summary>
+ BeginningPointDetected = 0,
+ /// <summary>
+ /// End point of speech is detected
+ /// </summary>
+ EndPointDetected
+ };
+
+ /// <summary>
+ /// Enumeration representing the result message
+ /// </summary>
+ public enum ResultMessage
+ {
+ /// <summary>
+ /// No Error
+ /// </summary>
+ None,
+ /// <summary>
+ /// Recognition failed because the speech started too soon.
+ /// </summary>
+ TooSoon,
+ /// <summary>
+ /// Recognition failed because the speech is too short.
+ /// </summary>
+ TooShort,
+ /// <summary>
+ /// Recognition failed because the speech is too long.
+ /// </summary>
+ TooLong,
+ /// <summary>
+ /// Recognition failed because the speech is too quiet to listen.
+ /// </summary>
+ TooQuiet,
+ /// <summary>
+ /// Recognition failed because the speech is too loud to listen.
+ /// </summary>
+ TooLoud,
+ /// <summary>
+ /// Recognition failed because the speech is too fast to listen.
+ /// </summary>
+ TooFast
+ };
+
+
+ /// <summary>
+ /// Enum for Error values that can occur
+ /// </summary>
+ public enum Error
+ {
+ /// <summary>
+ /// Successful, No error
+ /// </summary>
+ None = ErrorCode.None,
+ /// <summary>
+ /// Out of Memory
+ /// </summary>
+ OutOfMemory = ErrorCode.OutOfMemory,
+ /// <summary>
+ /// I/O error
+ /// </summary>
+ IoError = ErrorCode.IoError,
+ /// <summary>
+ /// Invalid parameter
+ /// </summary>
+ InvalidParameter = ErrorCode.InvalidParameter,
+ /// <summary>
+ /// Network down(Out of network)
+ /// </summary>
+ NetworkDown = ErrorCode.NetworkDown,
+ /// <summary>
+ /// Invalid state
+ /// </summary>
+ InvalidState = ErrorCode.InvalidState,
+ /// <summary>
+ /// Invalid language
+ /// </summary>
+ InvalidLanguage = ErrorCode.InvalidLanguage,
+ /// <summary>
+ /// Operation failed
+ /// </summary>
+ OperationFailed = ErrorCode.OperationFailed,
+ /// <summary>
+ /// Not supported feature of current engine
+ /// </summary>
+ NotSupportedFeature = ErrorCode.NotSupportedFeature,
+ /// <summary>
+ /// NOT supported
+ /// </summary>
+ NotSupported = ErrorCode.NotSupported,
+ /// <summary>
+ /// Permission denied
+ /// </summary>
+ PermissionDenied = ErrorCode.PermissionDenied,
+ /// <summary>
+ /// Recording timed out
+ /// </summary>
+ RecordingTimedOut = ErrorCode.RecordingTimedOut
+ };
+
+ /// <summary>
+ /// This Class represents the Stt Engine which has to be inherited to make the engine.
+ /// </summary>
+ public abstract class Engine
+ {
+ private CallbackStructGCHandle _callbackStructGCHandle = new CallbackStructGCHandle();
+ private PrivateDataSetCb _privateDataSetCb;
+ private Action<string> _privateDatacallback;
+ private PrivateDataRequestedCb _privateDataRequestedCb;
+ private OutAction<string> _privateDataRequestedCallback;
+ private static Engine _engine;
+ private IntPtr _structIntPtrHandle;
+
+ /// <summary>
+ /// An Action with 2 Input Parameter returning a Error
+ /// </summary>
+ /// <typeparam name="T">Generic Type for Parameter 1</typeparam>
+ /// <param name="a">The Input Parameter 1</param>
+ /// <param name="b">The Input Parameter 2</param>
+ /// <returns>Error Value</returns>
+ public delegate Error Action<T>(T a, T b);
+
+ /// <summary>
+ /// An Action with 2 Out Parameter returning a Error
+ /// </summary>
+ /// <typeparam name="T">Generic Type for Parameter 1</typeparam>
+ /// <param name="a">The Input Parameter 1</param>
+ /// <param name="b">The Input Parameter 2</param>
+ /// <returns>Error Value</returns>
+ public delegate Error OutAction<T>(T a, out T b);
+
+ /// <summary>
+ /// Called when Stt engine provides the time stamp of result to the engine service user.
+ /// This callback function is implemented by the engine service user. Therefore, the engine developer does NOT have to implement this callback function.
+ /// </summary>
+ /// <param name="index">The result index</param>
+ /// <param name="resultEvent">The token event</param>
+ /// <param name="text">The result text</param>
+ /// <param name="startTime">The time started speaking the result text</param>
+ /// <param name="endTime">The time finished speaking the result text</param>
+ /// <param mane="userData">The User data</param>
+ /// <returns>true to continue with the next iteration of the loop, false to break out of the loop</returns>
+ /// <precondition>SendResult() should be called.</precondition>
+ public delegate bool ResultTime(int index, TimeEvent resultEvent, string text, long startTime, long endTime, IntPtr userData);
+
+ /// <summary>
+ /// Called when Stt engine informs the engine service user about whole supported language list.
+ /// This callback function is implemented by the engine service user. Therefore, the engine developer does NOT have to implement this callback function.
+ /// </summary>
+ /// <param name="language">The language is specified as an ISO 3166 alpha-2 two letter country-code
+ /// followed by ISO 639-1 for the two-letter language code
+ /// for example, "ko_KR" for Korean, "en_US" for American English</param>
+ /// <param mane="userData">The User data</param>
+ /// <returns>true to continue with the next iteration of the loop, false to break out of the loop</returns>
+ /// <precondition>ForEachSupportedLanguages() should be called</precondition>
+ public delegate bool SupportedLanguages(string language, IntPtr userData);
+
+ /// <summary>
+ /// Called when the engine service user requests the basic information of Stt engine.
+ /// </summary>
+ /// <remarks>
+ /// In order to upload the engine at Tizen Appstore, both a service app and a ui app are necessary. Therefore, engineSetting must be transferred to the engine service user.
+ /// </remarks>
+ /// <param name="engineUuid">UUID of engine</param>
+ /// <param name="engineName">Name of engine</param>
+ /// <param name="engineSetting">The engine setting application(ui app)'s app ID</param>
+ /// <param name="useNetwork">A variable for checking whether the network is used or not</param>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. OperationFailed
+ /// 3. InvalidParameter
+ /// </returns>
+ public abstract Error GetInformation(out string engineUuid, out string engineName, out string engineSetting, out bool useNetwork);
+
+ /// <summary>
+ /// Called when the engine service user initializes Stt engine.
+ /// This callback function is called by the engine service user to request for Stt engine to be started.
+ /// </summary>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidParameter
+ /// 3. InvalidState
+ /// 4. OperationFailed
+ /// </returns>
+ public abstract Error Initialize();
+
+ /// <summary>
+ /// Called when the engine service user deinitializes Stt engine.
+ /// This callback function is called by the engine service user to request for Stt engine to be deinitialized.
+ /// </summary>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidState
+ /// </returns>
+ public abstract Error Deinitialize();
+
+ /// <summary>
+ /// Called when the engine service user gets the whole supported language list.
+ /// </summary>
+ /// <remarks>
+ /// In this function, the engine service user's callback function 'SupportedLanguages' is invoked repeatedly for getting all supported languages
+ /// and user_data must be transferred to 'SupportedLanguages'. If 'SupportedLanguages' returns false, it should be stopped to call 'SupportedLanguages'.
+ /// </remarks>
+ /// <param name="callback">The callback function</param>
+ /// <param name="userData">The user data which must be passed to the callback delegate 'SupportedLanguages'</param>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidState
+ /// 3. InvalidParameter
+ /// </returns>
+ /// <postcondition>
+ /// This callback function invokes SupportedLanguages repeatedly for getting supported languages.
+ /// </postcondition>
+ public abstract Error ForEachSupportedLanguages(SupportedLanguages callback, IntPtr userData);
+
+ /// <summary>
+ /// Called when the engine service user checks whether the corresponding language is valid or not in Stt engine.
+ /// </summary>
+ /// <param name="language">The language is specified as an ISO 3166 alpha-2 two letter country-code followed by ISO 639-1 for the two-letter language code
+ /// For example, "ko_KR" for Korean, "en_US" for American English</param>
+ /// <param name="isValid">A variable for checking whether the corresponding language is valid or not. true to be valid, false to be invalid</param>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidParameter
+ /// </returns>
+ public abstract Error IsValidLanguage(string language, out bool isValid);
+
+ /// <summary>
+ /// Called when the engine service user checks whether Stt engine supports silence detection.
+ /// </summary>
+ /// <returns>true to support silence detection, false not to support silence detection</returns>
+ public abstract bool SupportSilenceDetection();
+
+ /// <summary>
+ /// Called when the engine service user checks whether Stt engine supports the corresponding recognition type.
+ /// </summary>
+ /// <param name="type">The type for recognition, "stt.recognition.type.FREE" or "stt.recognition.type.FREE.PARTIAL"</param>
+ /// <param name="isSupported">A variable for checking whether Stt engine supports the corresponding recognition type.
+ /// true to support recognition type, false not to support recognition type</param>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidParameter
+ /// </returns>
+ public abstract Error SupportRecognitionType(string type, out bool isSupported);
+
+ /// <summary>
+ /// Called when the engine service user gets the proper recording format of Stt engine.
+ /// The recording format is used for creating the recorder.
+ /// </summary>
+ /// <param name="types">The format used by the recorder</param>
+ /// <param name="rate">The sample rate used by the recorder</param>
+ /// <param name="channels">The number of channels used by the recorder</param>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidState
+ /// </returns>
+ public abstract Error GetRecordingFormat(out AudioType types, out int rate, out int channels);
+
+ /// <summary>
+ /// Called when the engine service user sets the silence detection.
+ /// If the engine service user sets this option as 'TRUE', Stt engine will detect the silence (EPD) and send the callback event about it.
+ /// </summary>
+ /// <param name="isSet">A variable for setting the silence detection. true to detect the silence, false not to detect the silence</param>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidState
+ /// 3. NotSupportedFeature
+ /// </returns>
+ public abstract Error SetSilenceDetection(bool isSet);
+
+ /// <summary>
+ /// Called when the engine service user requests for Stt engine to check whether the application agreed the usage of Stt engine.
+ /// This callback function is called when the engine service user requests for Stt engine to check the application's agreement about using the engine.
+ /// According to the need, the engine developer can provide some user interfaces to check the agreement.
+ /// </summary>
+ /// <param name="appid">The Application ID</param>
+ /// <param name="isAgreed">A variable for checking whether the application agreed to use Stt engine or not. true to agree, false to disagree</param>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidState
+ /// 3. NotSupportedFeature
+ /// </returns>
+ public abstract Error CheckAppAgreed(string appid, out bool isAgreed);
+
+ /// <summary>
+ /// Called when the engine service user checks whether Stt engine needs the application's credential.
+ /// </summary>
+ /// <returns>true if Stt engine needs the application's credential, otherwise false </returns>
+ public abstract bool NeedAppCredential();
+
+ /// <summary>
+ /// Called when the engine service user gets the result time information(stamp).
+ /// </summary>
+ /// <remarks>
+ /// In this function, the engine service user's callback delegate 'ResultTime' is invoked repeatedly for sending the time information to the engine service user
+ /// and user_data must be transferred to 'ResultTime'. If 'ResultTime' returns false, it should be stopped to call 'ResultTime'.
+ /// timeInfo is transferred from SendResult. The type of timeInfo is up to the Stt engine developer.
+ /// </remarks>
+ /// <param name="timeInfo">The time information</param>
+ /// <param name="callback">The callback function</param>
+ /// <param name="userData">The user data which must be passed to the callback function ResultTime</param>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidState
+ /// 3. InvalidParameter
+ /// </returns>
+ /// <precondition>
+ /// SendResult will invoke this function
+ /// </precondition>
+ /// <postcondition>
+ /// This function invokes ResultTime repeatedly for getting result time information.
+ /// </postcondition>
+ public abstract Error ForEachResultTime(IntPtr timeInfo, ResultTime callback, IntPtr userData);
+
+ /// <summary>
+ /// Called when the engine service user starts to recognize the recording data.
+ /// In this callback function, Stt engine must transfer the recognition result and userData to the engine service user using SendResult().
+ /// Also, if Stt engine needs the application's credential, it sets the credential granted to the application.
+ /// </summary>
+ /// <param name="language">The language is specified as an ISO 3166 alpha-2 two letter country-code followed by ISO 639-1 for the two-letter language code
+ /// For example, "ko_KR" for Korean, "en_US" for American English</param>
+ /// <param name="type">The recognition type, "stt.recognition.type.FREE" or "stt.recognition.type.FREE.PARTIAL"</param>
+ /// <param name="appid">The Application ID</param>
+ /// <param name="credential">The credential granted to the application</param>
+ /// <param name="userData">The user data to be passed to the callback function</param>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidState
+ /// 3. InvalidParameter
+ /// 4. InvalidLanguage
+ /// 5. OperationFailed
+ /// 6. NetworkDown
+ /// </returns>
+ /// <precondition>
+ /// The engine is not in recognition processing.
+ /// </precondition>
+ public abstract Error Start(string language, string type, string appid, string credential, IntPtr userData);
+
+ /// <summary>
+ /// Called when the engine service user sets and sends the recording data for speech recognition.
+ /// This callback function is called by the engine service user to send the recording data to Stt engine.The engine receives the recording data and uses for speech recognition.
+ /// this function should be returned immediately after recording data copy.
+ /// </summary>
+ /// <param name="data">The recording data</param>
+ /// <param name="length">The length of recording data</param>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidState
+ /// 3. InvalidParameter
+ /// 4. OperationFailed
+ /// </returns>
+ /// <percondition>
+ /// Start should succeed</percondition>
+ /// <postcondition>
+ /// If the engine supports partial result, SendResult() should be invoked.</postcondition>
+ public abstract Error SetRecordingData(string data, uint length);
+
+ /// <summary>
+ /// Called when the engine service user stops to recognize the recording data.
+ /// This callback function is called by the engine service user to stop recording and to get the recognition result.
+ /// </summary>
+ /// <returns>Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidState
+ /// 3. OperationFailed
+ /// 4. NetworkDown
+ /// </returns>
+ /// <percondition>
+ /// Start should succeed</percondition>
+ /// <postcondition>
+ /// After processing of the engine, , SendResult() should be invoked.</postcondition>
+ public abstract Error Stop();
+
+ /// <summary>
+ /// Called when the engine service user cancels to recognize the recording data.
+ /// This callback function is called by the engine service user to cancel to recognize the recording data.Also, when starting the recorder is failed, this function is called.
+ /// </summary>
+ /// <returns>
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidState
+ /// </returns>
+ /// <precondition>Stt engine is in recognition processing or recording.</precondition>
+ public abstract Error Cancel();
+
+ /// <summary>
+ /// Public Constructor
+ /// </summary>
+ public Engine()
+ {
+ _engine = this;
+ }
+
+ /// <summary>
+ /// Main function for Speech-To-Text (STT) engine.
+ /// This function is the main function for operating Stt engine.
+ /// </summary>
+ /// <privilege>
+ /// http://tizen.org/privilege/recorder
+ /// </privilege>
+ /// <remarks>
+ /// ServiceAppMain should be used for working the engine after this function.
+ /// </remarks>
+ /// <param name="argc">The Number of Arguments</param>
+ /// <param name="argv">The Arguments Array</param>
+ /// <exception cref="ArgumentException">Thrown in case of Invalid Parameter</exception>
+ /// <exception cref="UnauthorizedAccessException">Thrown in case of Permission denied</exception>
+ /// <exception cref="NotSupportedException">Thrown in case of Not supported</exception>
+ /// <exception cref="InvalidOperationException">thrown in case of Operation failure</exception>
+ public void EngineMain(int argc, string[] argv)
+ {
+ _callbackStructGCHandle.CallbackStruct.version = 1;
+ _callbackStructGCHandle.CallbackStruct.getInfo = _getInfoCb;
+ _callbackStructGCHandle.CallbackStruct.initialize = Initialize;
+ _callbackStructGCHandle.CallbackStruct.deinitialize = _deinitializeCb;
+ _callbackStructGCHandle.CallbackStruct.supportedLanaguge = ForEachSupportedLanguages;
+ _callbackStructGCHandle.CallbackStruct.validLanaguage = _isValidLanguageCb;
+ _callbackStructGCHandle.CallbackStruct.silence = SupportSilenceDetection;
+ _callbackStructGCHandle.CallbackStruct.recognitionType = SupportRecognitionType;
+ _callbackStructGCHandle.CallbackStruct.recordingFormat = GetRecordingFormat;
+ _callbackStructGCHandle.CallbackStruct.resultTime = ForEachResultTime;
+ _callbackStructGCHandle.CallbackStruct.silenceDetection = SetSilenceDetection;
+ _callbackStructGCHandle.CallbackStruct.start = _startCb;
+ _callbackStructGCHandle.CallbackStruct.recordingData = SetRecordingData;
+ _callbackStructGCHandle.CallbackStruct.stop = Stop;
+ _callbackStructGCHandle.CallbackStruct.cancel = Cancel;
+ _callbackStructGCHandle.CallbackStruct.checkAppAgreed = CheckAppAgreed;
+ _callbackStructGCHandle.CallbackStruct.needAppCredential = NeedAppCredential;
+ _structIntPtrHandle = Marshal.AllocHGlobal(Marshal.SizeOf(_callbackStructGCHandle.CallbackStruct));
+ Marshal.StructureToPtr<RequestCallbackStruct>(_callbackStructGCHandle.CallbackStruct, _structIntPtrHandle, false);
+ Error error = STTEMain(argc, argv, _structIntPtrHandle);
+ if (error != Error.None)
+ {
+ Log.Error(LogTag, "STTEMain Failed with error " + error);
+ throw ExceptionFactory.CreateException((ErrorCode)error);
+ }
+
+ Log.Info(LogTag, "After STTEMain");
+ }
+
+ /// <summary>
+ /// Sends the recognition result to the engine service user.
+ /// </summary>
+ /// <remarks>
+ /// This API is used in SetRecordingData() and Stop(), when Stt engine sends the recognition result to the engine service user.
+ /// This function is called in the following situations; 1) after Stop() is called, 2) the end point of speech is detected from recording, or 3) partial result is occurred.
+ /// The recognition result must be transferred to the engine service user through this function. Also, timeInfo must be transferred to ForEachResultTime().
+ /// The type of timeInfo is up to the Stt engine developer.
+ /// </remarks>
+ /// <param name="resultEvent">The result event</param>
+ /// <param name="type">The recognition type, "stt.recognition.type.FREE" or "stt.recognition.type.FREE.PARTIAL"</param>
+ /// <param name="result">Result texts</param>
+ /// <param name="resultCount">Result text count</param>
+ /// <param name="msg">Engine message</param>
+ /// <param name="timeInfo">The time information</param>
+ /// <exception cref="ArgumentException">Thrown in case of Invalid Parameter</exception>
+ /// <exception cref="UnauthorizedAccessException">Thrown in case of Permission denied</exception>
+ /// <exception cref="NotSupportedException">Thrown in case of Not supported</exception>
+ /// <exception cref="InvalidOperationException">thrown in case of Operation failure</exception>
+ /// <precondition>
+ /// EngineMain function should be invoked before this function is called. Stop will invoke this function.
+ /// </precondition>
+ /// <postcondition>
+ /// This function invokes ForEachResultTime
+ /// </postcondition>
+ public void SendResult(ResultEvent resultEvent, string type, string[] result, int resultCount, ResultMessage msg, IntPtr timeInfo)
+ {
+ if ((result != null) && (result.Length != 0))
+ {
+
+ string message = "stt.result.message.none";
+ switch (msg)
+ {
+ case ResultMessage.None:
+ message = "stt.result.message.none";
+ break;
+
+ case ResultMessage.TooFast:
+ message = "stt.result.message.error.too.fast";
+ break;
+
+ case ResultMessage.TooLong:
+ message = "stt.result.message.error.too.long";
+ break;
+
+ case ResultMessage.TooLoud:
+ message = "stt.result.message.error.too.loud";
+ break;
+
+ case ResultMessage.TooQuiet:
+ message = "stt.result.message.error.too.quiet";
+ break;
+
+ case ResultMessage.TooShort:
+ message = "stt.result.message.error.too.short";
+ break;
+
+ case ResultMessage.TooSoon:
+ message = "stt.result.message.error.too.soon";
+ break;
+ }
+
+ Error error = STTESendResult(resultEvent, type, result, resultCount, message, timeInfo, IntPtr.Zero);
+ if (error != Error.None)
+ {
+ Log.Error(LogTag, "STTESendResult Failed with error " + error);
+ throw ExceptionFactory.CreateException((ErrorCode)error);
+ }
+
+ }
+ else
+ {
+ throw new ArgumentNullException("result", "is null or empty");
+ }
+ }
+
+ /// <summary>
+ /// Sends the error to the engine service user.
+ /// </summary>
+ /// <param name="error">The Error Reason</param>
+ /// <param name="msg">The error message</param>
+ /// <exception cref="ArgumentException">Thrown in case of Invalid Parameter</exception>
+ /// <exception cref="UnauthorizedAccessException">Thrown in case of Permission denied</exception>
+ /// <exception cref="NotSupportedException">Thrown in case of Not supported</exception>
+ /// <exception cref="InvalidOperationException">thrown in case of Operation failure</exception>
+ /// <precondition>
+ /// Main function should be invoked before this function is called.
+ /// </precondition>
+ public void SendError(Error error, string msg)
+ {
+ Error err = STTESendError(error, msg);
+ if (err != Error.None)
+ {
+ Log.Error(LogTag, "SendError Failed with error " + err);
+ throw ExceptionFactory.CreateException((ErrorCode)error);
+ }
+
+ }
+
+ /// <summary>
+ /// Sends the speech status to the engine service user when Stt engine notifies the change of the speech status.
+ /// </summary>
+ /// <remarks>
+ /// This API is invoked when Stt engine wants to notify the change of the speech status anytime. NOTE that this API can be invoked for recognizing the speech.
+ /// </remarks>
+ /// <param name="status">SpeechStatus</param>
+ /// <exception cref="ArgumentException">Thrown in case of Invalid Parameter</exception>
+ /// <exception cref="UnauthorizedAccessException">Thrown in case of Permission denied</exception>
+ /// <exception cref="NotSupportedException">Thrown in case of Not supported</exception>
+ /// <exception cref="InvalidOperationException">thrown in case of Operation failure</exception>
+ /// <precondition>
+ /// Main function should be invoked before this function is called. Start() and SetRecordingData() will invoke this function.
+ /// </precondition>
+ public void SendSpeechStatus(SpeechStatus status)
+ {
+ Error error = STTESendSpeechStatus(status, IntPtr.Zero);
+ if (error != Error.None)
+ {
+ Log.Error(LogTag, "SendSpeechStatus Failed with error " + error);
+ throw ExceptionFactory.CreateException((ErrorCode)error);
+ }
+
+ }
+
+ /// <summary>
+ /// Sets a callback function for setting the private data.
+ /// </summary>
+ /// <privilege>
+ /// http://tizen.org/privilege/recorder
+ /// </privilege>
+ /// <param name="callback">
+ /// Called when Stt engine receives the private data from the engine service user.
+ /// This callback function is called when the engine service user sends the private data to Stt engine.
+ /// In Parameters:
+ /// a = Key -- The key field of private data
+ /// b = data -- The data field of private data
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidParameter
+ /// 3. OperationFailed
+ /// </param>
+ /// <exception cref="ArgumentException">Thrown in case of Invalid Parameter</exception>
+ /// <exception cref="UnauthorizedAccessException">Thrown in case of Permission denied</exception>
+ /// <exception cref="NotSupportedException">Thrown in case of Not supported</exception>
+ /// <exception cref="InvalidOperationException">thrown in case of Operation failure</exception>
+ /// <precondition>
+ /// Main function should be invoked before this function is called.
+ /// </precondition>
+ public void SetPrivateDataSetDelegate(Action<string> callback)
+ {
+ _privateDatacallback = callback;
+ _privateDataSetCb = (string key, string data) =>
+ {
+ return _privateDatacallback.Invoke(key, data);
+ };
+ Error error = STTESetPrivateDataSetCb(_privateDataSetCb);
+ if (error != Error.None)
+ {
+ Log.Error(LogTag, "SetPrivateDataSetDelegate Failed with error " + error);
+ throw ExceptionFactory.CreateException((ErrorCode)error);
+ }
+
+ }
+
+ /// <summary>
+ /// Sets a callback delegate for requesting the private data.
+ /// </summary>
+ /// <privilege>
+ /// http://tizen.org/privilege/recorder
+ /// </privilege>
+ /// <param name="callback">callback function
+ /// Called when Stt engine provides the engine service user with the private data.
+ /// This callback function is called when the engine service user gets the private data from Stt engine.
+ /// Out Parameters:
+ /// a = Key -- The key field of private data
+ /// b = data -- The data field of private data
+ /// Following Error Codes can be returned
+ /// 1. None
+ /// 2. InvalidParameter
+ /// 3. OperationFailed
+ /// </param>
+ /// <exception cref="ArgumentException">Thrown in case of Invalid Parameter</exception>
+ /// <exception cref="UnauthorizedAccessException">Thrown in case of Permission denied</exception>
+ /// <exception cref="NotSupportedException">Thrown in case of Not supported</exception>
+ /// <exception cref="InvalidOperationException">thrown in case of Operation failure</exception>
+ /// <precondition>
+ /// Main function should be invoked before this function is called.
+ /// </precondition>
+ public void SetPrivateDataRequestedDelegate(OutAction<string> callback)
+ {
+ _privateDataRequestedCallback = callback;
+ _privateDataRequestedCb = (string key, out string data) =>
+ {
+ return _privateDataRequestedCallback.Invoke(key, out data);
+ };
+ Error error = STTESetPrivateDataRequestedCb(_privateDataRequestedCb);
+ if (error != Error.None)
+ {
+ Log.Error(LogTag, "SetPrivateDataRequestedDelegate Failed with error " + error);
+ throw ExceptionFactory.CreateException((ErrorCode)error);
+ }
+
+ }
+
+ private StartCb _startCb = (IntPtr language, IntPtr type, IntPtr appid, IntPtr credential, IntPtr userData) =>
+ {
+ string lan = null;
+ string typ = null;
+ string apid = null;
+ string cre = null;
+ if (language != null)
+ lan = Marshal.PtrToStringAnsi(language);
+ if (type != null)
+ typ = Marshal.PtrToStringAnsi(type);
+ if (appid != null)
+ apid = Marshal.PtrToStringAnsi(appid);
+ if (credential != null)
+ cre = Marshal.PtrToStringAnsi(credential);
+ return _engine.Start(lan, typ, apid, cre, IntPtr.Zero);
+ };
+
+ private IsValidLanguageCb _isValidLanguageCb = (IntPtr langauge, IntPtr isValid) =>
+ {
+ string langaugeStr = Marshal.PtrToStringAnsi(langauge);
+ bool valid;
+ Error err = _engine.IsValidLanguage(langaugeStr, out valid);
+ if (valid == true)
+ {
+ Marshal.WriteByte(isValid, 0, 1);
+ }
+ else
+ {
+ Marshal.WriteByte(isValid, 0, 0);
+ }
+ return err;
+ };
+
+ private GetInfoCb _getInfoCb = (out IntPtr engineUuid, out IntPtr engineName, out IntPtr engineSetting, out IntPtr useNetwork) =>
+ {
+ string uuid;
+ string name;
+ string setting;
+ bool network;
+ Error err = _engine.GetInformation(out uuid, out name, out setting, out network);
+ int size = Marshal.SizeOf<int>();
+ IntPtr pBool = Marshal.AllocHGlobal(size);
+ if (network == true)
+ {
+ Marshal.WriteInt32(pBool, 0, 1);
+ }
+ else
+ {
+ Marshal.WriteInt32(pBool, 0, 0);
+ }
+ engineUuid = Marshal.StringToHGlobalAnsi(uuid);
+ engineName = Marshal.StringToHGlobalAnsi(name);
+ engineSetting = Marshal.StringToHGlobalAnsi(setting);
+ useNetwork = pBool;
+ return err;
+ };
+
+ private DeinitializeCb _deinitializeCb = () =>
+ {
+ Marshal.FreeHGlobal(_engine._structIntPtrHandle);
+ return _engine.Deinitialize();
+ };
+ }
+}
\ No newline at end of file
projects / platform / core / csapi / tizenfx.git / commitdiff