// // BiTTSViewController.m // SpeechDemo // // Created by ByteDance on 2025/7/3. // Copyright © 2025 fangweiwei. All rights reserved. // #import "BiTTSViewController.h" #include #include #import #import "AppDelegate.h" #import "FileUtils.h" #import "SettingsHelper.h" #import "ViewController.h" #import "SensitiveDefines.h" static int TTS_MAX_RETRY_COUNT = 3; @interface BiTTSViewController () @property (weak, nonatomic) IBOutlet UITextView *referTextView; @property (weak, nonatomic) IBOutlet UITextView *resultTextView; @property (weak, nonatomic) IBOutlet UITextField *statusTextView; @property (weak, nonatomic) IBOutlet UIButton *engineSwitchButton; @property (weak, nonatomic) IBOutlet UIButton *startEngineButton; @property (weak, nonatomic) IBOutlet UIButton *stopEngineButton; @property (weak, nonatomic) IBOutlet UIButton *synthesisButton; @property (weak, nonatomic) IBOutlet UIButton *pauseResumeButton; // Device ID: 用于定位线上问题 @property (nonatomic, strong) NSString *deviceID; // Debug Path: 用于存放一些 SDK 相关的文件，比如模型、日志等 @property (strong, nonatomic) NSString *debugPath; // SpeechEngine @property (strong, nonatomic) SpeechEngine *curEngine; // Engine State @property (assign, nonatomic) BOOL engineInited; @property (assign, nonatomic) BOOL engineStarted; @property (assign, nonatomic) BOOL engineErrorOccurred; @property (assign, nonatomic) BOOL playerPaused; @property (assign, nonatomic) BOOL refTextChanged; // Settings @property (strong, nonatomic) Settings *settings; // 一些在线合成的配置 @property (strong, nonatomic) NSString *ttsAppId; @property (strong, nonatomic) NSString *ttsVoiceOnline; @property (strong, nonatomic) NSString *ttsVoiceTypeOnline; // tts合成文本相关 @property (assign, nonatomic) int ttsSynthesisIndex; @property (strong, nonatomic) NSMutableArray* ttsSynthesisText; @property (strong, nonatomic) NSMutableDictionary* ttsSynthesisMap; @property (assign, nonatomic) int ttsRetryCount; @end @implementation BiTTSViewController - (void)viewDidLoad { [super viewDidLoad]; self.settings = [[SettingsHelper shareInstance]getSettings:VIEW_BITTS]; self.engineSwitchButton.enabled = TRUE; [self decorateTextView:self.referTextView]; [self decorateTextView:self.resultTextView]; [self.referTextView setDelegate:self]; self.referTextView.editable = TRUE; self.engineInited = FALSE; self.engineStarted = FALSE; self.engineErrorOccurred = FALSE; self.playerPaused = FALSE; // 初始化和tts有关的字段 self.ttsSynthesisIndex = 0; self.ttsSynthesisText = [[NSMutableArray alloc] init]; self.ttsSynthesisMap = [[NSMutableDictionary alloc]init]; self.ttsRetryCount = TTS_MAX_RETRY_COUNT; [self.referTextView setText:@"愿中国青年都摆脱冷气，只是向上走，不必听自暴自弃者流的话。能做事的做事，能发声的发声。有一分热，发一分光。就令萤火一般，也可以在黑暗里发一点光，不必等候炬火。此后如竟没有炬火：我便是唯一的光。"]; [self.statusTextView setText:@"Waiting for init."]; [ViewController setAppDelegate:(AppDelegate *)[[UIApplication sharedApplication] delegate]]; self.debugPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES).firstObject; NSLog(@"当前调试路径 %@", self.debugPath); [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(audioInterruptionHandler:) name:AVAudioSessionInterruptionNotification object:nil]; } - (void)viewDidDisappear:(BOOL)animated { [super viewDidDisappear:animated]; } - (void)decorateTextView:(UITextView *)textView { textView.layer.cornerRadius = 5.0f; textView.layer.borderWidth = .25f; textView.layer.borderColor = [UIColor grayColor].CGColor; } #pragma mark - Notifications -(void)appWillTerminate:(NSNotification*)note { [[NSNotificationCenter defaultCenter] removeObserver:self name:AVAudioSessionInterruptionNotification object:nil]; } - (void)audioInterruptionHandler:(NSNotification*)notification { AVAudioSessionInterruptionType interruptionType = (AVAudioSessionInterruptionType)[[notification.userInfo objectForKey:AVAudioSessionInterruptionTypeKey] unsignedIntegerValue]; AVAudioSessionInterruptionOptions intertuptionOptions = [[notification.userInfo objectForKey:AVAudioSessionInterruptionOptionKey] unsignedIntValue]; NSLog(@"Receive audio interruption notification, type: %lu, options: %lu.", (unsigned long)interruptionType, (unsigned long)intertuptionOptions); if (interruptionType == AVAudioSessionInterruptionTypeBegan) { NSLog(@"Audio session interruption began"); @synchronized (self) { [self pausePlayback]; } } else if (interruptionType == AVAudioSessionInterruptionTypeEnded) { @synchronized (self) { NSLog(@"Audio session interruption ended"); if (intertuptionOptions == AVAudioSessionInterruptionOptionShouldResume) { AVAudioSession *session = [AVAudioSession sharedInstance]; AVAudioSessionCategoryOptions cur_options = session.categoryOptions; // AudioQueueStart() will return AVAudioSessionErrorCodeCannotInterruptOthers if options didn't contains AVAudioSessionCategoryOptionMixWithOthers if (!(cur_options & AVAudioSessionCategoryOptionMixWithOthers)) { AVAudioSessionCategoryOptions readyOptions = AVAudioSessionCategoryOptionMixWithOthers | cur_options; [session setCategory:AVAudioSessionCategoryPlayback withOptions:readyOptions error:nil]; } [self resumePlayback]; cur_options = session.categoryOptions; // Remove AVAudioSessionCategoryOptionMixWithOthers, or the playback will not be interrupted any more if (cur_options & AVAudioSessionCategoryOptionMixWithOthers) { [session setCategory:AVAudioSessionCategoryPlayback withOptions:((~AVAudioSessionCategoryOptionMixWithOthers) & cur_options) error:nil]; } } } } } #pragma mark - Config & Init & Uninit Methods -(void)configInitParams { //【必需配置】Engine Name [self.curEngine setStringParam:SE_BITTS_ENGINE forKey:SE_PARAMS_KEY_ENGINE_NAME_STRING]; //【可选配置】Debug & Log [self.curEngine setStringParam:self.debugPath forKey:SE_PARAMS_KEY_DEBUG_PATH_STRING]; [self.curEngine setStringParam:SE_LOG_LEVEL_DEBUG forKey:SE_PARAMS_KEY_LOG_LEVEL_STRING]; //【可选配置】User ID（用以辅助定位线上用户问题） [self.curEngine setStringParam:SDEF_UID forKey:SE_PARAMS_KEY_UID_STRING]; [self.curEngine setStringParam:self.deviceID forKey:SE_PARAMS_KEY_DEVICE_ID_STRING]; //【可选配置】是否将合成出的音频保存到设备上，为 true 时需要正确配置 PARAMS_KEY_TTS_AUDIO_PATH_STRING 才会生效 [self.curEngine setBoolParam:[self.settings getBool:SETTING_TTS_ENABLE_DUMP] forKey:SE_PARAMS_KEY_TTS_ENABLE_DUMP_BOOL]; // TTS 音频文件保存目录，必须在合成之前创建好且 APP 具有访问权限，保存的音频文件名格式为 tts_{reqid}.wav, {reqid} 是本次合成的请求 id // PARAMS_KEY_TTS_ENABLE_DUMP_BOOL 配置为 true 的音频时为【必需配置】，否则为【可选配置】 [self.curEngine setStringParam:self.debugPath forKey:SE_PARAMS_KEY_TTS_AUDIO_PATH_STRING]; //【可选配置】自定义请求Header NSString* headerStr = [self.settings getString:SETTING_REQUEST_HEADERS]; if ([headerStr isEqualToString:@""]) { headerStr = @"{}"; } [self.curEngine setStringParam:headerStr forKey:SE_PARAMS_KEY_REQUEST_HEADERS_STRING]; //【可选配置】是否使用 SDK 内置播放器播放合成出的音频，默认为 true [self.curEngine setBoolParam:[self.settings getBool:SETTING_TTS_ENABLE_PLAYER] forKey:SE_PARAMS_KEY_TTS_ENABLE_PLAYER_BOOL]; //【可选配置】是否令 SDK 通过回调返回合成的音频数据，默认不返回。 // 开启后，SDK 会流式返回音频，收到 SETtsAudioData 回调表示当次合成所有的音频已经全部返回 [self.curEngine setBoolParam:[self.settings getBool:SETTING_ENABLE_PLAYER_AUDIO_CALL_BACK] ? SETtsDataCallbackModeAll : SETtsDataCallbackModeNone forKey:SE_PARAMS_KEY_ENABLE_PLAYER_AUDIO_CALLBACK_BOOL]; // ------------------------ 在线合成相关配置 ----------------------- NSString* appid = [self.settings getString:SETTING_APPID]; self.ttsAppId = appid.length > 0 ? appid : SDEF_APPID; //【必需配置】在线合成鉴权相关：Appid [self.curEngine setStringParam:self.ttsAppId forKey:SE_PARAMS_KEY_APP_ID_STRING]; NSString* token = [self.settings getString:SETTING_TOKEN]; NSString* ttsAppToken = token.length > 0 ? token : SDEF_TOKEN; //【必需配置】在线合成鉴权相关：Token [self.curEngine setStringParam:ttsAppToken forKey:SE_PARAMS_KEY_APP_TOKEN_STRING]; NSString *address = [self.settings getString:SETTING_ADDRESS]; NSString *ttsAddress = address.length > 0 ? address : SDEF_DEFAULT_ADDRESS; //【必需配置】语音合成服务域名 [self.curEngine setStringParam:ttsAddress forKey:SE_PARAMS_KEY_TTS_ADDRESS_STRING]; NSString *uri = [self.settings getString:SETTING_URI]; NSString *ttsUri = uri.length > 0 ? uri : SDEF_BITTS_DEFAULT_URI; //【必需配置】语音合成服务Uri [self.curEngine setStringParam:ttsUri forKey:SE_PARAMS_KEY_TTS_URI_STRING]; NSString *resourceId = [self.settings getString:SETTING_RESOURCE_ID]; //【必需配置】语音合成服务资源id [self.curEngine setStringParam:resourceId forKey: SE_PARAMS_KEY_RESOURCE_ID_STRING]; //【可选配置】TTS连接超时时间 [self.curEngine setIntParam:10000 forKey:SE_PARAMS_KEY_TTS_CONN_TIMEOUT_INT]; } -(void)configStartTtsParams { // 准备待合成的文本 if(![self prepareBiTTSText]) { char fake_error_info[] = "{err_code:3006, err_msg:\"Invalid input text.\"}"; [self speechEngineError:[NSData dataWithBytes:fake_error_info length:sizeof(fake_error_info)]]; return; } } - (NSString*)getSynthesisText { if(self.refTextChanged){ //如果文本有变更重新追加进去 self.refTextChanged = FALSE; __block NSString* refText = nil; if (![NSThread isMainThread]) { dispatch_sync(dispatch_get_main_queue(), ^{ refText = self.referTextView.text; }); } else { refText = self.referTextView.text; // 已经在主线程，直接赋值 } if (refText.length > 0) { NSError *error = nil; NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"[^;!?。！？；…]+[;!?。！？；…]?" options:0 error:&error]; if (!error) { NSArray *matches = [regex matchesInString:refText options:0 range:NSMakeRange(0, refText.length)]; for (NSTextCheckingResult *match in matches) { NSString *sentence = [refText substringWithRange:match.range]; [self addSentence:sentence]; } } } } if(self.ttsSynthesisIndex == [self.ttsSynthesisText count]){ NSLog(@"no more tts conttent to synthesis"); [self updateTtsResultText:@"No More Text to Synthesis"]; return nil; } NSString* text = self.ttsSynthesisText[self.ttsSynthesisIndex]; NSLog(@"Synthesis: %d, text: %@", self.ttsSynthesisIndex, text); self.ttsSynthesisIndex = (self.ttsSynthesisIndex + 1); return text; } - (void)initEngine { NSLog(@"获取设备ID，调试使用"); AppDelegate *appDelegate = [ViewController getAppDelegate]; if (appDelegate == nil) { appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate]; } [ViewController setAppDelegate:appDelegate]; self.deviceID = appDelegate.deviceID; NSLog(@"获取设备ID成功: %@", self.deviceID); NSLog(@"创建引擎"); if (self.curEngine == nil) { self.curEngine = [[SpeechEngine alloc] init]; if (![self.curEngine createEngineWithDelegate:self]) { NSLog(@"引擎创建失败."); return; } } NSLog(@"SDK 版本号: %@", [self.curEngine getVersion]); [self initEngineInternal]; } - (void)initEngineInternal { NSLog(@"配置初始化参数"); [self configInitParams]; NSLog(@"引擎初始化"); SEEngineErrorCode ret = [self.curEngine initEngine]; self.engineInited = (ret == SENoError); if (self.engineInited) { NSLog(@"初始化成功"); [self speechEngineInitSucceeded]; } else { NSLog(@"初始化失败，返回值: %d", ret); [self speechEngineInitFailed:ret]; } } - (void)uninitEngine { if (self.curEngine != nil) { NSLog(@"引擎析构"); [self.curEngine destroyEngine]; self.curEngine = nil; NSLog(@"引擎析构完成"); } } #pragma mark - UI Actions - (IBAction)switchEngine:(id)sender { if (self.engineStarted) { [self.statusTextView setText:@"Engine is busy, stop it first!"]; return; } [self clearResult:nil]; self.startEngineButton.enabled = FALSE; self.synthesisButton.enabled = FALSE; self.pauseResumeButton.enabled = FALSE; if (self.engineInited) { self.referTextView.editable = TRUE; [self uninitEngine]; self.engineInited = FALSE; [self.statusTextView setText:@"Waiting for init."]; self.engineSwitchButton.enabled = TRUE; [self.engineSwitchButton setTitle:@"Init Engine" forState:UIControlStateNormal]; self.stopEngineButton.enabled = FALSE; } else { self.referTextView.editable = TRUE; [self initEngine]; } } - (IBAction)Synthesis:(id)sender { [self triggerSynthesis]; } - (IBAction)startEngineBtnClicked:(id)sender { NSLog(@"Start engine, current status: %d", self.engineStarted); if (!self.engineStarted) { [self clearResult:nil]; self.engineErrorOccurred = FALSE; // Directive：启动引擎前调用SYNC_STOP指令，保证前一次请求结束。 NSLog(@"关闭引擎（同步）"); NSLog(@"Directive: SEDirectiveSyncStopEngine"); SEEngineErrorCode ret = [self.curEngine sendDirective:SEDirectiveSyncStopEngine]; if (ret != SENoError) { NSLog(@"Send directive syncstop failed: %d", ret); } else { [self configStartTtsParams]; NSLog(@"启动引擎."); NSLog(@"Directive: SEDirectiveStartEngine"); NSString* startPayload = @"{\"req_params\":{\"speaker\":\"zh_female_roumeinvyou_emo_v2_mars_bigtts\",\"audio_params\":{\"emotion\":\"excited\",\"loudness_rate\":50}}}"; SEEngineErrorCode ret = [self.curEngine sendDirective:SEDirectiveStartEngine data:startPayload]; if (SENoError != ret) { NSString* message = [NSString stringWithFormat:@"发送启动引擎指令失败: %d", ret]; [self sendStartEngineDirectiveFailed:message]; } } } } - (IBAction)stopEngineBtnClicked:(id)sender { NSLog(@"关闭引擎"); NSLog(@"Directive: SEDirectiveStopEngine"); [self.curEngine sendDirective:SEDirectiveStopEngine]; } - (void)pausePlayback { NSLog(@"暂停播放"); NSLog(@"Directive: SEDirectivePausePlayer"); SEEngineErrorCode ret = [self.curEngine sendDirective:SEDirectivePausePlayer]; if (ret == SENoError) { self.playerPaused = TRUE; [self.pauseResumeButton setTitle:@"Resume" forState:UIControlStateNormal]; } NSLog(@"Pause playback status: %d", ret); } - (void)resumePlayback { NSLog(@"继续播放"); NSLog(@"Directive: SEDirectiveResumePlayer"); SEEngineErrorCode ret = [self.curEngine sendDirective:SEDirectiveResumePlayer]; if (ret == SENoError) { self.playerPaused = FALSE; [self.pauseResumeButton setTitle:@"Pause" forState:UIControlStateNormal]; } NSLog(@"Resume playback status: %d", ret); } - (IBAction)controlPlayingStatus:(id)sender { NSLog(@"Pause or resume player, current player status: %hhd", self.playerPaused); if (self.playerPaused) { [self resumePlayback]; } else { [self pausePlayback]; } } - (IBAction)clearResult:(id)sender { dispatch_async(dispatch_get_main_queue(), ^{ [self.resultTextView setText:@""]; }); } #pragma mark - Message Callback - (void)onMessageWithType:(SEMessageType)type andData:(NSData *)data { NSLog(@"Message Type: %d.", type); switch (type) { case SEEngineStart: NSLog(@"Callback: 引擎启动成功: data: %@", data); [self speechEngineStarted]; break; case SEEngineStop: NSLog(@"Callback: 引擎关闭: data: %@", data); [self speechEngineStopped]; break; case SEEngineError: NSLog(@"Callback: 错误信息: %@", data); [self speechEngineError:data]; break; case SEEventConnectionStarted: NSLog(@"Callback: SEEventConnectionStarted"); break; case SEEventConnectionFailed: NSLog(@"Callback: SEEventConnectionFailed"); break; case SEEventConnectionFinished: NSLog(@"Callback: SEEventConnectionFinished"); break; case SEEventSessionStarted: NSLog(@"Callback: SEEventSessionStarted"); break; case SEEventSessionCanceled: NSLog(@"Callback: SEEventSessionCanceled"); break; case SEEventSessionFinished: NSLog(@"Callback: SEEventSessionFinished"); break; case SEEventSessionFailed: NSLog(@"Callback: SEEventSessionFailed"); break; case SEEventTTSSentenceStart: [self speechStartSynthesis:data]; NSLog(@"Callback: 合成开始 SentenceStart: %@", data); break; case SEEventTTSSentenceEnd: [self speechFinishSynthesis:data]; NSLog(@"Callback: 合成结束 SentenceEnd: %@", data); case SEEventTTSResponse: NSLog(@"Callback: 收到合成音频 TTSResponse: %@", data); case SEEventTTSEnded: NSLog(@"Callback: TTSEnd: %@", data); case SEPlayerAudioData: // NSLog(@"Callback: 播放的pcm音频: %@", data); break; case SEPlayerStartPlayAudio: NSLog(@"Callback: 开始播放TTS音频"); [self speechStartPlaying:nil]; break; case SEPlayerFinishPlayAudio: NSLog(@"Callback: 结束播放TTS音频"); [self speechFinishPlaying:nil]; break; default: break; } } - (void)speechEngineInitSucceeded { dispatch_async(dispatch_get_main_queue(), ^{ self.engineSwitchButton.enabled = TRUE; [self.engineSwitchButton setTitle:@"UninitEngine" forState:UIControlStateNormal]; [self.statusTextView setText:@"Ready"]; [self.resultTextView setText:[NSString stringWithFormat:@"DeviceID: %@.", self.deviceID]]; self.referTextView.editable = TRUE; self.startEngineButton.enabled = TRUE; }); } - (void)speechEngineInitFailed:(int)initStatus { dispatch_async(dispatch_get_main_queue(), ^{ [self uninitEngine]; [self.statusTextView setText:[[NSString alloc] initWithFormat:@"Failed to init engine, %d!", initStatus]]; self.engineSwitchButton.enabled = TRUE; }); } - (void)sendSynthesisDirectiveFailed:(NSString*)tipText { NSLog(@"%@", tipText); dispatch_async(dispatch_get_main_queue(), ^{ [self.resultTextView setText:tipText]; [self.curEngine sendDirective:SEDirectiveStopEngine]; }); } - (void)sendStartEngineDirectiveFailed:(NSString*)tipText { NSLog(@"%@", tipText); dispatch_async(dispatch_get_main_queue(), ^{ [self.resultTextView setText:tipText]; self.engineStarted = FALSE; }); } - (void)speechEngineStarted { self.ttsRetryCount = TTS_MAX_RETRY_COUNT; dispatch_async(dispatch_get_main_queue(), ^{ self.referTextView.editable = TRUE; self.engineStarted = true; [self.statusTextView setText:@"Engine Started!"]; self.startEngineButton.enabled = FALSE; self.synthesisButton.enabled = TRUE; self.stopEngineButton.enabled = TRUE; }); } - (void)speechEngineStopped { dispatch_async(dispatch_get_main_queue(), ^{ self.referTextView.editable = TRUE; self.engineStarted = FALSE; [self.statusTextView setText:@"Engine Stopped!"]; self.startEngineButton.enabled = TRUE; self.synthesisButton.enabled = FALSE; self.stopEngineButton.enabled = FALSE; [self.pauseResumeButton setTitle:@"Pause" forState:UIControlStateNormal]; self.pauseResumeButton.enabled = FALSE; self.playerPaused = FALSE; }); } - (void)speechEngineError:(NSData *)data { dispatch_async(dispatch_get_main_queue(), ^{ BOOL needStop = NO; id json_obj = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil]; if ([json_obj isKindOfClass:[NSDictionary class]]) { NSDictionary *error_info = json_obj; NSInteger code = [[error_info objectForKey:@"err_code"] intValue]; switch (code) { case SETTSLimitQps: case SETTSLimitCount: case SETTSServerBusy: case SETTSLongText: case SETTSInvalidText: case SETTSSynthesisTimeout: case SETTSSynthesisError: case SETTSSynthesisWaitingTimeout: case SETTSErrorUnknown: NSLog(@"When meeting this kind of error, continue to synthesize."); [self triggerSynthesis]; break; case SEConnectTimeout: case SEReceiveTimeout: case SENetLibError: // 遇到网络错误时建议重试，重试次数不超过 3 次 needStop = ![self retrySynthesis]; if (needStop) { self.engineErrorOccurred = TRUE; } break; default: needStop = YES; self.engineErrorOccurred = TRUE; dispatch_async(dispatch_get_main_queue(), ^{ [self.resultTextView setText:[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]]; }); break; } } else { needStop = YES; } if (needStop) { [self.curEngine sendDirective:SEDirectiveStopEngine]; } }); } - (void)scrollTextViewToBottom { dispatch_async(dispatch_get_main_queue(), ^{ if (self.resultTextView.text.length > 0) { NSRange bottomRange = NSMakeRange(self.resultTextView.text.length - 1, 1); [self.resultTextView scrollRangeToVisible:bottomRange]; [self.resultTextView layoutIfNeeded]; } }); } -(void)updateTtsResultText:(NSString*) playingId { if (self.engineErrorOccurred) { NSLog(@"When a fatal error occurs, prevent the playback text from being displayed."); return; } dispatch_async(dispatch_get_main_queue(), ^{ NSString *currentText = self.resultTextView.text ?: @""; NSString *newText = [NSString stringWithFormat:@"%@\n%@", currentText, playingId]; [self.resultTextView setText:newText]; }); [self scrollTextViewToBottom]; } - (void)speechStartSynthesis:(NSData *)data { if (self.ttsSynthesisIndex < [self.ttsSynthesisText count]) { NSString* req_id = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; [self.ttsSynthesisMap setValue:[NSNumber numberWithInt:self.ttsSynthesisIndex] forKey:req_id]; } dispatch_async(dispatch_get_main_queue(), ^{ self.synthesisButton.enabled = FALSE; }); } - (void)speechFinishSynthesis:(NSData *)data { if (self.ttsRetryCount < TTS_MAX_RETRY_COUNT) { self.ttsRetryCount = TTS_MAX_RETRY_COUNT; } dispatch_async(dispatch_get_main_queue(), ^{ self.synthesisButton.enabled = TRUE; }); } - (void)speechStartPlaying:(NSData *)data { NSLog(@"TTS start playing"); dispatch_async(dispatch_get_main_queue(), ^{ self.pauseResumeButton.enabled = TRUE; }); } - (void)speechFinishPlaying :(NSData *)data { NSLog(@"TTS finish playing"); dispatch_async(dispatch_get_main_queue(), ^{ [self updateTtsResultText:@"playing finished"]; }); [self triggerSynthesis]; } - (void)speechTtsAudioData:(NSData *)data { } - (BOOL)retrySynthesis { BOOL ret = FALSE; if (self.engineStarted && self.ttsRetryCount > 0) { NSLog(@"Retry synthesis for text: %@", self.ttsSynthesisText[self.ttsSynthesisIndex]); dispatch_after(dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC), dispatch_get_main_queue(), ^{ [self triggerSynthesis]; }); self.ttsRetryCount -= 1; ret = TRUE; } return ret; } -(void)triggerSynthesis { NSString *text = [self getSynthesisText]; if(text == nil){ return; } SEEngineErrorCode ret = [self.curEngine sendDirective:SEDirectiveEventStartSession data:@""]; if (ret != SENoError) { NSLog(@"Start Session faile: %d", ret); } NSString* taskRequestJson = [NSString stringWithFormat: @"{\"req_params\":{\"text\":\"%@\"}}", text]; // SEDirectiveTaskRequest 是可以连续发送的，服务端会缓存每一句文本，然后按顺序通过sentence_start 、 task respnse... sentence_end返回当前处理句的结果 ret = [self.curEngine sendDirective:SEDirectiveEventTaskRequest data:taskRequestJson]; [self updateTtsResultText:text]; NSLog(@"触发合成"); NSLog(@"Directive: SEDirectiveTaskRequest"); if (ret != SENoError) { NSLog(@"Synthesis faile: %d", ret); } ret = [self.curEngine sendDirective:SEDirectiveEventFinishSession data:@""]; if (ret != SENoError) { NSLog(@"Finish Session faile: %d", ret); } } -(void)addSentence:(NSString*) text { NSCharacterSet* blankChar = [NSCharacterSet characterSetWithCharactersInString:@" "]; NSString* tmp = [text stringByTrimmingCharactersInSet:blankChar]; if (tmp.length > 0) { [self.ttsSynthesisText addObject:tmp]; } } -(void)resetTtsContext { self.ttsSynthesisIndex = 0; [self.ttsSynthesisText removeAllObjects]; [self.ttsSynthesisMap removeAllObjects]; } -(BOOL)prepareBiTTSText { [self resetTtsContext]; __block NSString* text = nil; if (![NSThread isMainThread]) { dispatch_sync(dispatch_get_main_queue(), ^{ text = self.referTextView.text; }); } else { text = self.referTextView.text; // 已经在主线程，直接赋值 } if (text.length <= 0) { text = @"愿中国青年都摆脱冷气，只是向上走，不必听自暴自弃者流的话。能做事的做事，能发声的发声。有一分热，发一分光。就令萤火一般，也可以在黑暗里发一点光，不必等候炬火。此后如竟没有炬火：我便是唯一的光。"; } if (self.ttsSynthesisText == nil || [self.ttsSynthesisText count] <= 0) { // 使用下面几个标点符号来分句，会让通过 MESSAGE_TYPE_TTS_PLAYBACK_PROGRESS 返回的播放进度更加准确 NSArray* temp = [text componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@";!?。！？；…"]]; if (text.length > 0) { NSError *error = nil; NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"[^;!?。！？；…]+[;!?。！？；…]?" options:0 error:&error]; if (!error) { NSArray *matches = [regex matchesInString:text options:0 range:NSMakeRange(0, text.length)]; for (NSTextCheckingResult *match in matches) { NSString *sentence = [text substringWithRange:match.range]; [self addSentence:sentence]; } } } } NSLog(@"Synthesis text item num: %ld.", [self.ttsSynthesisText count]); return [self.ttsSynthesisText count] > 0; } #pragma mark - Helper - (long)timeDelayFrom:(long)pastTimestamp { return [[NSDate date] timeIntervalSince1970] * 1000 - pastTimestamp; } #pragma mark - UITextViewDelegate - (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text { if([text isEqualToString:@"\n"]) { [textView resignFirstResponder]; return NO; } return YES; } - (void)textViewDidChange:(UITextView *)textView { if(textView == _referTextView){ self.refTextChanged = TRUE; } } #pragma mark - Navigation // In a storyboard-based application, you will often want to do a little preparation before navigation - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { // Get the new view controller using [segue destinationViewController]. // Pass the selected object to the new view controller. id nextPage = [segue destinationViewController]; [nextPage setValue:VIEW_BITTS forKey:@"viewId"]; } @end