汉秋
5eef31b8da
重构排队设置与变更日志交互，补充 Overlay 与资源，并将多页面主操作按钮统一到 UIButton Configuration，同步更新相关单元测试。 Co-authored-by: Cursor <cursoragent@cursor.com>
624 lines
22 KiB
Swift
624 lines
22 KiB
Swift
//
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// ScenicQueueTTSManager.swift
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// suixinkan
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//
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import AVFoundation
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import Foundation
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/// 排队语音播报服务协议，隔离具体 TTS SDK。
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protocol ScenicQueueTTSManaging: AnyObject {
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/// 自定义文案是否正在循环播报。
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var customTextLooping: Bool { get }
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/// 是否支持离线语音合成。
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var supportsOfflineTTS: Bool { get }
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/// 预热排队 TTS 引擎。
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func prepareQueueTTSEngine(api: ScenicQueueAPIProtocol?) async
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/// 开始循环播报指定排号。
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func startQueueCallLoop(queueNo: String)
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/// 停止叫号循环。
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func stopQueueCallLoop()
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/// 单次播报普通文本。
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@discardableResult
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func speakPlainTextOnce(_ text: String) async -> Bool
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/// 开始循环播报自定义文本。
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@discardableResult
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func startCustomTextLoop(_ text: String) async -> Bool
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/// 停止自定义文本循环。
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func stopCustomTextLoop()
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/// 中断拍摄倒计时等临时播报。
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func interruptShootingAnnouncement()
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/// 估算播报耗时。
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func estimateAnnouncementDurationMillis(_ text: String) -> Int64
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}
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/// 主线程隔离的系统语音合成器，统一管理播放状态与异步 continuation。
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@MainActor
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private final class SystemVoiceSynthesizer: NSObject, @preconcurrency AVSpeechSynthesizerDelegate {
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private let synthesizer = AVSpeechSynthesizer()
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private var currentContinuation: CheckedContinuation<Void, Never>?
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private var currentUtterance: AVSpeechUtterance?
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nonisolated override init() {
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super.init()
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}
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/// 播放一段中文文本，并在完成或取消后结束等待。
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func speak(_ text: String) async {
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synthesizer.delegate = self
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finishCurrentSpeech()
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if synthesizer.isSpeaking {
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synthesizer.stopSpeaking(at: .immediate)
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}
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await withCheckedContinuation { continuation in
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let utterance = AVSpeechUtterance(string: text)
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utterance.voice = AVSpeechSynthesisVoice(language: "zh-CN")
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utterance.rate = AVSpeechUtteranceDefaultSpeechRate * 0.86
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utterance.volume = 1.0
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currentContinuation = continuation
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currentUtterance = utterance
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synthesizer.speak(utterance)
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}
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}
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/// 停止当前播放并释放等待中的调用方。
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func stop() {
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finishCurrentSpeech()
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if synthesizer.isSpeaking {
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synthesizer.stopSpeaking(at: .immediate)
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}
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}
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func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer, didFinish utterance: AVSpeechUtterance) {
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finishCurrentSpeech(matching: utterance)
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}
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func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer, didCancel utterance: AVSpeechUtterance) {
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finishCurrentSpeech(matching: utterance)
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}
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private func finishCurrentSpeech(matching utterance: AVSpeechUtterance? = nil) {
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if let utterance, utterance !== currentUtterance {
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return
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}
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currentUtterance = nil
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currentContinuation?.resume()
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currentContinuation = nil
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}
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}
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/// 阿里云 NLS TTS 管理器，优先使用 NUI SDK，失败时回退到系统中文语音。
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///
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/// 线程安全性：循环状态只在 `loopQueue` 读写，原生引擎状态只在 `nativeQueue` 读写，
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/// 系统语音合成由 `SystemVoiceSynthesizer` 的主 Actor 隔离保护。
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final class AliyunNLSTTSManager: NSObject, ScenicQueueTTSManaging, @unchecked Sendable {
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static let shared = AliyunNLSTTSManager()
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private enum LoopKind {
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case queueCall(String)
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case custom(String)
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}
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/// 当前已初始化的阿里云原生 TTS 引擎类型。
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private enum NativeEngineKind {
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case online
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case offline
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}
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/// 离线 TTS 工作目录及默认发音人资源。
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private struct OfflineResources {
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let workspace: String
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let voicePath: String
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}
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private let systemVoiceSynthesizer = SystemVoiceSynthesizer()
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private let loopQueue = DispatchQueue(label: "com.zhifly.suixinkan.scenicQueue.tts")
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private let nativeQueue = DispatchQueue(label: "com.zhifly.suixinkan.scenicQueue.aliyunNLS")
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private let appStore: AppStore
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private let tokenProvider: AliyunNLSTokenProviding
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private let bridge: AliyunNuiTTSBridging
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private let streamingPlayer: AliyunPCMStreamingPlaying
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private let workspacePathProvider: () -> String?
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private var activeLoop: LoopKind?
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private var nativeContinuation: CheckedContinuation<Bool, Never>?
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private var nativeReady = false
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private var nativeEngineKind: NativeEngineKind?
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private var nativeSampleRate: Double
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private var customTextLoopingStorage = false
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var customTextLooping: Bool {
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loopQueue.sync { customTextLoopingStorage }
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}
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var supportsOfflineTTS: Bool {
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bridge.sdkAvailable && offlineResources() != nil
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}
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init(
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appStore: AppStore = .shared,
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tokenProvider: AliyunNLSTokenProviding = AliyunNLSTokenProvider(),
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bridge: AliyunNuiTTSBridging = AliyunNuiTTSBridgeAdapter(),
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streamingPlayer: AliyunPCMStreamingPlaying = AliyunPCMStreamingPlayer(),
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workspacePathProvider: (() -> String?)? = nil
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) {
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self.appStore = appStore
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self.tokenProvider = tokenProvider
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self.bridge = bridge
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self.streamingPlayer = streamingPlayer
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self.workspacePathProvider = workspacePathProvider ?? Self.bundledWorkspacePath
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nativeSampleRate = AliyunNLSTTSManager.onlineSampleRate
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super.init()
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self.bridge.delegate = self
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}
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func prepareQueueTTSEngine(api: ScenicQueueAPIProtocol?) async {
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guard let api else { return }
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guard !appStore.scenicQueue.useOfflineTTS || supportsOfflineTTS else {
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await setNativeReady(false)
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return
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}
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do {
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let sts = try await api.aliyunSTS(bucket: "vipsky")
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let token = try await tokenProvider.createToken(credentials: sts.credentials)
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let isReady = await prepareNativeEngineIfAvailable(token: token, credentials: sts.credentials)
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await setNativeReady(isReady)
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} catch {
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await setNativeReady(false)
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}
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}
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func startQueueCallLoop(queueNo: String) {
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let text = Self.callAnnouncementText(queueNo: queueNo)
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loopQueue.async { [weak self] in
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guard let self else { return }
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self.activeLoop = .queueCall(queueNo)
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self.customTextLoopingStorage = false
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Task { await self.runLoop(text: text, expected: .queueCall(queueNo)) }
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}
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}
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func stopQueueCallLoop() {
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loopQueue.async { [weak self] in
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guard let self else { return }
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if case .queueCall = self.activeLoop {
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self.activeLoop = nil
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}
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self.stopSpeaking()
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}
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}
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@discardableResult
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func speakPlainTextOnce(_ text: String) async -> Bool {
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let trimmed = text.trimmingCharacters(in: .whitespacesAndNewlines)
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guard !trimmed.isEmpty else { return false }
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await speak(trimmed)
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return true
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}
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@discardableResult
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func startCustomTextLoop(_ text: String) async -> Bool {
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let trimmed = text.trimmingCharacters(in: .whitespacesAndNewlines)
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guard !trimmed.isEmpty else { return false }
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loopQueue.async { [weak self] in
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guard let self else { return }
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self.activeLoop = .custom(trimmed)
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self.customTextLoopingStorage = true
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Task { await self.runLoop(text: trimmed, expected: .custom(trimmed)) }
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}
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return true
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}
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func stopCustomTextLoop() {
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loopQueue.async { [weak self] in
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guard let self else { return }
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if case .custom = self.activeLoop {
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self.activeLoop = nil
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}
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self.customTextLoopingStorage = false
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self.stopSpeaking()
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}
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}
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func interruptShootingAnnouncement() {
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stopSpeaking()
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}
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func estimateAnnouncementDurationMillis(_ text: String) -> Int64 {
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let count = max(1, text.count)
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return Int64(min(max(850 + count * 200, 900), 12_000))
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}
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/// 排队号 TTS 格式化，降低字母数字连读概率。
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static func formatQueueNoForTTS(_ queueNo: String) -> String {
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let trimmed = queueNo.trimmingCharacters(in: .whitespacesAndNewlines)
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let core = trimmed.hasSuffix("号") ? String(trimmed.dropLast()) : trimmed
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guard !core.isEmpty else { return trimmed.isEmpty ? "请" : trimmed }
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let pattern = #"^([A-Za-z]+)([0-9]+)$"#
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if let regex = try? NSRegularExpression(pattern: pattern),
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let match = regex.firstMatch(in: core, range: NSRange(core.startIndex..., in: core)),
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let lettersRange = Range(match.range(at: 1), in: core),
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let digitsRange = Range(match.range(at: 2), in: core) {
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return "\(core[lettersRange].uppercased())，\(core[digitsRange])号"
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}
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return "\(core)号"
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}
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/// 叫号播报文案。
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static func callAnnouncementText(queueNo: String) -> String {
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"\(formatQueueNoForTTS(queueNo))，请到拍摄区域，准备拍摄。"
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}
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private func runLoop(text: String, expected: LoopKind) async {
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while isLoopStillActive(expected) {
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await speak(text)
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guard isLoopStillActive(expected) else { break }
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try? await Task.sleep(nanoseconds: 1_000_000_000)
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}
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if case .custom = expected {
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loopQueue.async { [weak self] in
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self?.customTextLoopingStorage = false
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}
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}
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}
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private func isLoopStillActive(_ expected: LoopKind) -> Bool {
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loopQueue.sync {
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switch (activeLoop, expected) {
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case (.queueCall(let lhs), .queueCall(let rhs)):
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lhs == rhs
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case (.custom(let lhs), .custom(let rhs)):
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lhs == rhs
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default:
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false
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}
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}
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}
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private func speak(_ text: String) async {
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if await speakWithNativeEngine(text) {
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return
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}
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await speakWithSystemVoice(text)
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}
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private func speakWithNativeEngine(_ text: String) async -> Bool {
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await withCheckedContinuation { continuation in
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nativeQueue.async { [weak self] in
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guard let self, self.nativeReady, self.bridge.sdkAvailable else {
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continuation.resume(returning: false)
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return
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}
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self.cancelNativeSpeakLocked(resumeExisting: true)
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self.nativeContinuation = continuation
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self.streamingPlayer.stop()
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self.streamingPlayer.start(sampleRate: self.nativeSampleRate)
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self.applyNativePlaybackParams(text: text)
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let code = self.bridge.play(priority: "1", taskId: Self.nuiTaskId, text: text)
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if code != 0 {
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self.streamingPlayer.stop()
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self.nativeContinuation = nil
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continuation.resume(returning: false)
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}
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}
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}
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}
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private func setNativeReady(_ isReady: Bool) async {
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await withCheckedContinuation { continuation in
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nativeQueue.async { [weak self] in
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self?.nativeReady = isReady
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continuation.resume()
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}
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}
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}
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private func speakWithSystemVoice(_ text: String) async {
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await systemVoiceSynthesizer.speak(text)
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}
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private func stopSpeaking() {
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nativeQueue.async { [weak self] in
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self?.cancelNativeSpeakLocked(resumeExisting: true)
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}
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Task { @MainActor [systemVoiceSynthesizer] in
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systemVoiceSynthesizer.stop()
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}
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}
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private func prepareNativeEngineIfAvailable(
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token: AliyunNLSToken,
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credentials: AliyunOSSCredentials
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) async -> Bool {
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guard bridge.sdkAvailable else {
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return false
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}
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let wantsOffline = appStore.scenicQueue.useOfflineTTS
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let offlineResources = wantsOffline ? offlineResources() : nil
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guard !wantsOffline || offlineResources != nil else { return false }
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guard let ticket = wantsOffline
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? nativeOfflineTicket(token: token.id, credentials: credentials, resources: offlineResources!)
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: nativeOnlineTicket(token: token.id) else { return false }
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return await withCheckedContinuation { continuation in
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nativeQueue.async { [weak self] in
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guard let self else {
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continuation.resume(returning: false)
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return
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}
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self.cancelNativeSpeakLocked(resumeExisting: true)
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_ = self.bridge.releaseEngine()
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self.nativeEngineKind = nil
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let code = self.bridge.initialize(ticket: ticket, logLevel: 0, saveLog: true)
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guard code == 0 else {
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continuation.resume(returning: false)
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return
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}
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let configured: Bool
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if let offlineResources {
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configured = self.configureOfflineEngine(resources: offlineResources)
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} else {
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self.nativeEngineKind = .online
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self.nativeSampleRate = Self.onlineSampleRate
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self.applyNativeOnlineQueueProsodyParams()
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configured = true
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}
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guard configured else {
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_ = self.bridge.releaseEngine()
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self.nativeEngineKind = nil
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continuation.resume(returning: false)
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return
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}
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continuation.resume(returning: true)
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}
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}
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}
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private func nativeOnlineTicket(token: String) -> String? {
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guard let workspace = workspacePathProvider() else { return nil }
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let ticket: [String: String] = [
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"app_key": Self.onlineAppKey,
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"token": token,
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"workspace": workspace,
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"debug_path": nativeDebugPath(),
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"url": "wss://nls-gateway.cn-shanghai.aliyuncs.com:443/ws/v1",
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"device_id": Self.deviceId(),
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"mode_type": "2",
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"tts_version": "0",
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]
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guard let data = try? JSONSerialization.data(withJSONObject: ticket) else { return nil }
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return String(data: data, encoding: .utf8)
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}
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private func nativeOfflineTicket(
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token: String,
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credentials: AliyunOSSCredentials,
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resources: OfflineResources
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) -> String? {
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let ticket: [String: String] = [
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"app_key": Self.offlineAppKey,
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"ak_id": credentials.accessKeyId,
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"ak_secret": credentials.accessKeySecret,
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"sts_token": credentials.securityToken,
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"token": token,
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"sdk_code": Self.offlineSDKCode,
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"save_wav": "false",
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"debug_path": nativeDebugPath(),
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"workspace": resources.workspace,
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"log_track_level": "5",
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"mode_type": "0",
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"device_id": Self.deviceId(),
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]
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guard let data = try? JSONSerialization.data(withJSONObject: ticket) else { return nil }
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return String(data: data, encoding: .utf8)
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}
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private static func bundledWorkspacePath() -> String? {
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if let privateFrameworksPath = Bundle.main.privateFrameworksPath {
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let frameworkPath = (privateFrameworksPath as NSString).appendingPathComponent("nuisdk.framework")
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if let frameworkBundle = Bundle(path: frameworkPath),
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let path = frameworkBundle.path(forResource: "Resources", ofType: "bundle") {
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return path
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}
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}
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return Bundle.main.path(forResource: "Resources", ofType: "bundle")
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}
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private func offlineResources() -> OfflineResources? {
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guard let workspace = workspacePathProvider() else { return nil }
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let ttsPath = (workspace as NSString).appendingPathComponent("tts")
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let languagePath = (ttsPath as NSString).appendingPathComponent("languagedata_embedded.bin")
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let parameterPath = (ttsPath as NSString).appendingPathComponent("parameter.cfg")
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let voicePath = (ttsPath as NSString).appendingPathComponent("voices/\(Self.offlineVoiceName)")
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let fileManager = FileManager.default
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guard fileManager.fileExists(atPath: languagePath),
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fileManager.fileExists(atPath: parameterPath),
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fileManager.fileExists(atPath: voicePath) else { return nil }
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return OfflineResources(workspace: workspace, voicePath: voicePath)
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}
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private func nativeDebugPath() -> String {
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let caches = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask).first
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let url = (caches ?? URL(fileURLWithPath: NSTemporaryDirectory())).appendingPathComponent("aliyun_nls_tts_debug", isDirectory: true)
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try? FileManager.default.createDirectory(at: url, withIntermediateDirectories: true)
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return url.path
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}
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private func applyNativePlaybackParams(text: String) {
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switch nativeEngineKind {
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case .online:
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_ = bridge.setParam("mode_type", value: "2")
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_ = bridge.setParam("tts_version", value: text.count > 300 ? "1" : "0")
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applyNativeOnlineQueueProsodyParams()
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case .offline:
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applyNativeOfflineQueueProsodyParams()
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case nil:
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break
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}
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}
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private func applyNativeOnlineQueueProsodyParams() {
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_ = bridge.setParam("speech_rate", value: Self.onlineSpeechRate)
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_ = bridge.setParam("volume", value: Self.playbackVolume)
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}
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private func configureOfflineEngine(resources: OfflineResources) -> Bool {
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guard bridge.setParam("extend_font_name", value: resources.voicePath) == 0 else { return false }
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guard bridge.setParam("encode_type", value: "pcm") == 0 else { return false }
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guard bridge.setParam("sample_rate", value: Self.offlineSampleRateText) == 0 else { return false }
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nativeEngineKind = .offline
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nativeSampleRate = Double(bridge.paramValue(for: "model_sample_rate") ?? "")
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.flatMap { $0 > 0 ? $0 : nil } ?? Self.offlineSampleRate
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applyNativeOfflineQueueProsodyParams()
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return true
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||
}
|
||
|
||
private func applyNativeOfflineQueueProsodyParams() {
|
||
_ = bridge.setParam("speed_level", value: Self.offlineSpeedLevel)
|
||
_ = bridge.setParam("volume", value: Self.playbackVolume)
|
||
}
|
||
|
||
private func cancelNativeSpeakLocked(resumeExisting: Bool) {
|
||
_ = bridge.cancel(taskId: Self.nuiTaskId)
|
||
streamingPlayer.stop()
|
||
if resumeExisting {
|
||
finishNativeSpeakLocked(success: false)
|
||
} else {
|
||
nativeContinuation = nil
|
||
}
|
||
}
|
||
|
||
private func finishNativeSpeakLocked(success: Bool) {
|
||
let continuation = nativeContinuation
|
||
nativeContinuation = nil
|
||
continuation?.resume(returning: success)
|
||
}
|
||
|
||
private static func deviceId() -> String {
|
||
let key = "aliyun_nls_tts_device_id_v1"
|
||
if let value = UserDefaults.standard.string(forKey: key), !value.isEmpty {
|
||
return value
|
||
}
|
||
let value = UUID().uuidString
|
||
UserDefaults.standard.set(value, forKey: key)
|
||
return value
|
||
}
|
||
|
||
private static let onlineAppKey = "3WX8cD04JCGkbRLi"
|
||
private static let offlineAppKey = "gfWimmOuTku1AbIV"
|
||
private static let offlineSDKCode = "software_nls_tts_offline_standard"
|
||
private static let offlineVoiceName = "aijia"
|
||
private static let nuiTaskId = "1"
|
||
private static let onlineSampleRate = 16_000.0
|
||
private static let offlineSampleRate = 24_000.0
|
||
private static let offlineSampleRateText = "24000"
|
||
private static let onlineSpeechRate = "-120"
|
||
private static let offlineSpeedLevel = "1.0"
|
||
private static let playbackVolume = "2.0"
|
||
}
|
||
|
||
/// 阿里云 NUI TTS Swift 桥接协议。
|
||
protocol AliyunNuiTTSBridging: AnyObject {
|
||
/// SDK 回调代理。
|
||
var delegate: AliyunNuiTTSBridgeDelegate? { get set }
|
||
|
||
/// 当前平台是否可使用 SDK。
|
||
var sdkAvailable: Bool { get }
|
||
|
||
/// 初始化引擎。
|
||
func initialize(ticket: String, logLevel: Int, saveLog: Bool) -> Int
|
||
|
||
/// 设置参数。
|
||
func setParam(_ param: String, value: String) -> Int
|
||
|
||
/// 开始播放。
|
||
func play(priority: String, taskId: String, text: String) -> Int
|
||
|
||
/// 取消任务。
|
||
func cancel(taskId: String?) -> Int
|
||
|
||
/// 释放引擎。
|
||
func releaseEngine() -> Int
|
||
|
||
/// 读取 SDK 参数。
|
||
func paramValue(for key: String) -> String?
|
||
}
|
||
|
||
/// 阿里云 NUI TTS Objective-C 桥接器的 Swift 适配器。
|
||
final class AliyunNuiTTSBridgeAdapter: AliyunNuiTTSBridging {
|
||
private let bridge: AliyunNuiTTSBridge
|
||
|
||
var delegate: AliyunNuiTTSBridgeDelegate? {
|
||
get { bridge.delegate }
|
||
set { bridge.delegate = newValue }
|
||
}
|
||
|
||
var sdkAvailable: Bool { bridge.sdkAvailable }
|
||
|
||
init(bridge: AliyunNuiTTSBridge = AliyunNuiTTSBridge()) {
|
||
self.bridge = bridge
|
||
}
|
||
|
||
func initialize(ticket: String, logLevel: Int, saveLog: Bool) -> Int {
|
||
bridge.initialize(withTicket: ticket, logLevel: logLevel, saveLog: saveLog)
|
||
}
|
||
|
||
func setParam(_ param: String, value: String) -> Int {
|
||
bridge.setParam(param, value: value)
|
||
}
|
||
|
||
func play(priority: String, taskId: String, text: String) -> Int {
|
||
bridge.play(withPriority: priority, taskId: taskId, text: text)
|
||
}
|
||
|
||
func cancel(taskId: String?) -> Int {
|
||
bridge.cancel(withTaskId: taskId)
|
||
}
|
||
|
||
func releaseEngine() -> Int {
|
||
bridge.releaseEngine()
|
||
}
|
||
|
||
func paramValue(for key: String) -> String? {
|
||
bridge.paramValue(forKey: key)
|
||
}
|
||
}
|
||
|
||
extension AliyunNLSTTSManager: AliyunNuiTTSBridgeDelegate {
|
||
func aliyunNuiTTSBridge(_ bridge: AliyunNuiTTSBridge, didReceiveEvent event: Int, taskId: String?, code: Int) {
|
||
nativeQueue.async { [weak self] in
|
||
guard let self else { return }
|
||
switch event {
|
||
case 1:
|
||
self.streamingPlayer.drain { [weak self] in
|
||
self?.nativeQueue.async {
|
||
self?.finishNativeSpeakLocked(success: true)
|
||
}
|
||
}
|
||
case 2, 5:
|
||
self.streamingPlayer.stop()
|
||
self.finishNativeSpeakLocked(success: false)
|
||
default:
|
||
break
|
||
}
|
||
_ = taskId
|
||
_ = code
|
||
}
|
||
}
|
||
|
||
func aliyunNuiTTSBridge(_ bridge: AliyunNuiTTSBridge, didReceiveAudioData data: Data, taskId: String?, info: String?) {
|
||
streamingPlayer.write(data)
|
||
_ = taskId
|
||
_ = info
|
||
}
|
||
}
|