748 lines
25 KiB
Dart
748 lines
25 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'dart:ui' as ui;
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import 'dart:math'; // Import the math package to use sqrt
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import 'package:flutter/foundation.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_pcm_sound/flutter_pcm_sound.dart';
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import 'package:flutter_voice_processor/flutter_voice_processor.dart';
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import 'package:gallery_saver/gallery_saver.dart';
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import 'package:get/get.dart';
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import 'package:image_gallery_saver/image_gallery_saver.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:permission_handler/permission_handler.dart';
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import 'package:star_lock/app_settings/app_settings.dart';
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import 'package:star_lock/login/login/entity/LoginEntity.dart';
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import 'package:star_lock/main/lockDetail/lockDetail/lockDetail_logic.dart';
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import 'package:star_lock/main/lockDetail/lockDetail/lockDetail_state.dart';
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import 'package:star_lock/main/lockDetail/lockDetail/lockNetToken_entity.dart';
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import 'package:star_lock/main/lockDetail/lockSet/lockSet/lockSetInfo_entity.dart';
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import 'package:star_lock/main/lockMian/entity/lockListInfo_entity.dart';
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import 'package:star_lock/network/api_repository.dart';
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import 'package:star_lock/talk/call/g711.dart';
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import 'package:star_lock/talk/starChart/constant/talk_status.dart';
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import 'package:star_lock/talk/starChart/proto/talk_data.pb.dart';
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import 'package:star_lock/talk/starChart/proto/talk_expect.pb.dart';
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import 'package:star_lock/talk/starChart/star_chart_manage.dart';
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import 'package:star_lock/talk/starChart/views/talkView/talk_view_state.dart';
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import 'package:star_lock/tools/G711Tool.dart';
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import 'package:star_lock/tools/bugly/bugly_tool.dart';
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import '../../../../tools/baseGetXController.dart';
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class TalkViewLogic extends BaseGetXController {
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final TalkViewState state = TalkViewState();
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final LockDetailState lockDetailState = Get.put(LockDetailLogic()).state;
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final int minBufferSize = 2; // 最小缓冲2帧，约166ms
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final int maxBufferSize = 20; // 最大缓冲8帧，约666ms
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int bufferSize = 8; // 初始化为默认大小
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// 修改音频相关的成员变量
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final int minAudioBufferSize = 1; // 音频最小缓冲1帧
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final int maxAudioBufferSize = 3; // 音频最大缓冲3帧
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int audioBufferSize = 2; // 音频默认缓冲2帧
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// 添加开始时间记录
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int _startTime = 0; // 开始播放时间戳
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int _startAudioTime = 0; // 开始播放时间戳
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bool _isFirstFrame = true; // 是否是第一帧
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bool _isFirstAudioFrame = true; // 是否是第一帧
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// 定义音频帧缓冲和发送函数
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final List<int> _bufferedAudioFrames = <int>[];
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final Map<String, ui.Image> _imageCache = {};
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// 添加一个变量用于记录上一帧的时间戳
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int _lastFrameTimestamp = 0; // 初始值为 0
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// 添加帧率计算相关变量
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int _frameCount = 0;
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int _lastFpsUpdateTime = 0;
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Timer? _fpsTimer;
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/// 初始化音频播放器
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void _initFlutterPcmSound() {
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const int sampleRate = 8000;
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FlutterPcmSound.setLogLevel(LogLevel.none);
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FlutterPcmSound.setup(sampleRate: sampleRate, channelCount: 1);
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// 设置 feed 阈值
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if (Platform.isAndroid) {
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FlutterPcmSound.setFeedThreshold(1024); // Android 平台的特殊处理
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} else {
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FlutterPcmSound.setFeedThreshold(2000); // 非 Android 平台的处理
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}
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}
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/// 挂断
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void udpHangUpAction() async {
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if (state.talkStatus.value == TalkStatus.answeredSuccessfully) {
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// 如果是通话中就挂断
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StartChartManage().startTalkHangupMessageTimer();
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} else {
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// 拒绝
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StartChartManage().startTalkRejectMessageTimer();
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}
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Get.back();
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}
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// 发起接听命令
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void initiateAnswerCommand() {
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StartChartManage().startTalkAcceptTimer();
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}
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// 监听音视频数据流
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void _startListenTalkData() {
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state.talkDataRepository.talkDataStream.listen((TalkData talkData) async {
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final contentType = talkData.contentType;
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final currentTime = DateTime.now().millisecondsSinceEpoch;
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// 判断数据类型，进行分发处理
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switch (contentType) {
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case TalkData_ContentTypeE.G711:
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// // 第一帧到达时记录开始时间
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// if (_isFirstAudioFrame) {
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// _startAudioTime = currentTime;
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// _isFirstAudioFrame = false;
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// }
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// 计算音频延迟
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final expectedTime = _startAudioTime + talkData.durationMs;
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final audioDelay = currentTime - expectedTime;
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// 如果延迟太大，清空缓冲区并直接播放
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if (audioDelay > 500) {
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state.audioBuffer.clear();
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if (state.isOpenVoice.value) {
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_playAudioFrames();
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}
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return;
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}
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if (state.audioBuffer.length >= audioBufferSize) {
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state.audioBuffer.removeAt(0); // 丢弃最旧的数据
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}
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state.audioBuffer.add(talkData); // 添加新数据
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// 添加音频播放逻辑，与视频类似
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_playAudioFrames();
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break;
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case TalkData_ContentTypeE.Image:
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// 第一帧到达时记录开始时间
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if (_isFirstFrame) {
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_startTime = currentTime;
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_isFirstFrame = false;
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AppLog.log('第一帧帧的时间戳：${talkData.durationMs}');
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}
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// AppLog.log('其他帧的时间戳：${talkData.durationMs}');
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// 计算帧间间隔
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if (_lastFrameTimestamp != 0) {
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final int frameInterval = talkData.durationMs - _lastFrameTimestamp;
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_adjustBufferSize(frameInterval); // 根据帧间间隔调整缓冲区
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}
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_lastFrameTimestamp = talkData.durationMs; // 更新上一帧时间戳
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// 然后添加到播放缓冲区
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if (state.videoBuffer.length >= bufferSize) {
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state.videoBuffer.removeAt(0);
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}
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state.videoBuffer.add(talkData);
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// 先进行解码和缓存
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await _decodeAndCacheFrame(talkData);
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// 最后尝试播放
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_playVideoFrames();
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break;
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}
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});
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}
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// 修改：视频帧播放逻辑
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void _playVideoFrames() {
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// 如果缓冲区为空或未达到目标大小，不进行播放
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if (state.videoBuffer.isEmpty || state.videoBuffer.length < bufferSize) {
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// AppLog.log('📊 缓冲中 - 当前缓冲区大小: ${state.videoBuffer.length}/${bufferSize}');
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return;
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}
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// 找出时间戳最小的帧（最旧的帧）
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TalkData? oldestFrame;
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int oldestIndex = -1;
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for (int i = 0; i < state.videoBuffer.length; i++) {
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if (oldestFrame == null ||
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state.videoBuffer[i].durationMs < oldestFrame.durationMs) {
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oldestFrame = state.videoBuffer[i];
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oldestIndex = i;
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}
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}
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// 确保找到了有效帧
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if (oldestFrame != null && oldestIndex != -1) {
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final cacheKey = oldestFrame.content.hashCode.toString();
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// 使用缓存的解码图片更新显示
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if (_imageCache.containsKey(cacheKey)) {
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state.currentImage.value = _imageCache[cacheKey];
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state.listData.value = Uint8List.fromList(oldestFrame.content);
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state.videoBuffer.removeAt(oldestIndex); // 移除已播放的帧
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// // 更新帧率计算
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// _frameCount++;
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// final currentTime = DateTime.now().millisecondsSinceEpoch;
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// final elapsed = currentTime - _lastFpsUpdateTime;
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//
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// if (elapsed >= 1000) {
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// // 每秒更新一次
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// state.fps.value = (_frameCount * 1000 / elapsed).round();
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// _frameCount = 0;
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// _lastFpsUpdateTime = currentTime;
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// }
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} else {
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// AppLog.log('⚠️ 帧未找到缓存 - Key: $cacheKey');
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state.videoBuffer.removeAt(oldestIndex); // 移除无法播放的帧
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}
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}
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}
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// 新增：音频帧播放逻辑
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void _playAudioFrames() {
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// 如果缓冲区为空或未达到目标大小，不进行播放
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// 音频缓冲区要求更小，以减少延迟
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if (state.audioBuffer.isEmpty ||
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state.audioBuffer.length < audioBufferSize) {
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return;
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}
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// 找出时间戳最小的音频帧
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TalkData? oldestFrame;
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int oldestIndex = -1;
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for (int i = 0; i < state.audioBuffer.length; i++) {
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if (oldestFrame == null ||
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state.audioBuffer[i].durationMs < oldestFrame.durationMs) {
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oldestFrame = state.audioBuffer[i];
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oldestIndex = i;
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}
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}
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// 确保找到了有效帧
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if (oldestFrame != null && oldestIndex != -1) {
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if (state.isOpenVoice.value) {
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// 播放音频
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_playAudioData(oldestFrame);
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}
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state.audioBuffer.removeAt(oldestIndex);
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}
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}
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// 新增：解码和缓存帧的方法
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Future<void> _decodeAndCacheFrame(TalkData talkData) async {
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try {
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String cacheKey = talkData.content.hashCode.toString();
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// 如果该帧还没有被缓存，则进行解码和缓存
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if (!_imageCache.containsKey(cacheKey)) {
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final Uint8List uint8Data = Uint8List.fromList(talkData.content);
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final ui.Image image = await decodeImageFromList(uint8Data);
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// 管理缓存大小
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if (_imageCache.length >= bufferSize) {
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_imageCache.remove(_imageCache.keys.first);
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}
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// 添加到缓存
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_imageCache[cacheKey] = image;
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// AppLog.log('📥 缓存新帧 - 缓存数: ${_imageCache.length}, Key: $cacheKey');
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}
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} catch (e) {
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AppLog.log('❌ 帧解码错误: $e');
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}
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}
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// 新增：动态调整缓冲区大小的方法
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void _adjustBufferSize(int frameInterval) {
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const int frameDuration = 83; // 假设每帧的时间间隔为 83ms（12fps）
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const int delayThresholdHigh = frameDuration * 2; // 高延迟阈值（2帧时间）
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const int delayThresholdLow = frameDuration; // 低延迟阈值（1帧时间）
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const int adjustInterval = 1; // 每次调整1帧
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if (frameInterval > delayThresholdHigh && bufferSize < maxBufferSize) {
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// 帧间间隔较大，增加缓冲区
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bufferSize = min(bufferSize + adjustInterval, maxBufferSize);
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AppLog.log('📈 增加缓冲区 - 当前大小: $bufferSize, 帧间间隔: ${frameInterval}ms');
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} else if (frameInterval < delayThresholdLow &&
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bufferSize > minBufferSize) {
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// 帧间间隔较小，减少缓冲区
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bufferSize = max(bufferSize - adjustInterval, minBufferSize);
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AppLog.log('📉 减少缓冲区 - 当前大小: $bufferSize, 帧间间隔: ${frameInterval}ms');
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}
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}
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/// 监听对讲状态
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void _startListenTalkStatus() {
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state.startChartTalkStatus.statusStream.listen((talkStatus) {
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state.talkStatus.value = talkStatus;
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switch (talkStatus) {
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case TalkStatus.rejected:
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case TalkStatus.hangingUpDuring:
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case TalkStatus.notTalkData:
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case TalkStatus.notTalkPing:
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case TalkStatus.end:
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_handleInvalidTalkStatus();
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break;
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case TalkStatus.answeredSuccessfully:
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state.oneMinuteTimeTimer?.cancel(); // 取消旧定时器
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state.oneMinuteTimeTimer ??=
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Timer.periodic(const Duration(seconds: 1), (Timer t) {
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if (state.listData.value.length > 0) {
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state.oneMinuteTime.value++;
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// if (state.oneMinuteTime.value >= 60) {
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// t.cancel(); // 取消定时器
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// state.oneMinuteTime.value = 0;
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// // 倒计时结束挂断
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// // udpHangUpAction();
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// }
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}
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});
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break;
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default:
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// 其他状态的处理
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break;
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}
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});
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}
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/// 播放音频数据
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void _playAudioData(TalkData talkData) async {
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if (state.isOpenVoice.value) {
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final list =
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G711().decodeAndDenoise(talkData.content, true, 8000, 300, 150);
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// // 将 PCM 数据转换为 PcmArrayInt16
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final PcmArrayInt16 fromList = PcmArrayInt16.fromList(list);
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FlutterPcmSound.feed(fromList);
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if (!state.isPlaying.value) {
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FlutterPcmSound.play();
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state.isPlaying.value = true;
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}
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}
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}
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/// 停止播放音频
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void _stopPlayG711Data() async {
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await FlutterPcmSound.pause();
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await FlutterPcmSound.stop();
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await FlutterPcmSound.clear();
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}
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/// 开门
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// udpOpenDoorAction() async {
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// final List<String>? privateKey =
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// await Storage.getStringList(saveBluePrivateKey);
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// final List<int> getPrivateKeyList = changeStringListToIntList(privateKey!);
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//
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// final List<String>? signKey = await Storage.getStringList(saveBlueSignKey);
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// final List<int> signKeyDataList = changeStringListToIntList(signKey!);
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//
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// final List<String>? token = await Storage.getStringList(saveBlueToken);
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// final List<int> getTokenList = changeStringListToIntList(token!);
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//
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// await _getLockNetToken();
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//
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// final OpenLockCommand openLockCommand = OpenLockCommand(
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// lockID: BlueManage().connectDeviceName,
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// userID: await Storage.getUid(),
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// openMode: lockDetailState.openDoorModel,
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// openTime: _getUTCNetTime(),
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// onlineToken: lockDetailState.lockNetToken,
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// token: getTokenList,
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// needAuthor: 1,
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// signKey: signKeyDataList,
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// privateKey: getPrivateKeyList,
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// );
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// final messageDetail = openLockCommand.packageData();
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// // 将 List<int> 转换为十六进制字符串
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// String hexString = messageDetail
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// .map((byte) => byte.toRadixString(16).padLeft(2, '0'))
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// .join(' ');
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//
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// AppLog.log('open lock hexString: $hexString');
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// // 发送远程开门消息
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// StartChartManage().sendRemoteUnLockMessage(
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// bluetoothDeviceName: BlueManage().connectDeviceName,
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// openLockCommand: messageDetail,
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// );
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// showToast('正在开锁中...'.tr);
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// }
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int _getUTCNetTime() {
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if (lockDetailState.isHaveNetwork) {
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return DateTime.now().millisecondsSinceEpoch ~/ 1000 +
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lockDetailState.differentialTime;
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} else {
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return 0;
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}
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}
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// 获取手机联网token，根据锁设置里面获取的开锁时是否联网来判断是否调用这个接口
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Future<void> _getLockNetToken() async {
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final LockNetTokenEntity entity = await ApiRepository.to.getLockNetToken(
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lockId: lockDetailState.keyInfos.value.lockId.toString());
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if (entity.errorCode!.codeIsSuccessful) {
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lockDetailState.lockNetToken = entity.data!.token!.toString();
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AppLog.log('从服务器获取联网token:${lockDetailState.lockNetToken}');
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} else {
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BuglyTool.uploadException(
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message: '点击了需要联网开锁', detail: '点击了需要联网开锁 获取连网token失败', upload: true);
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showToast('网络访问失败,请检查网络是否正常'.tr, something: () {});
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}
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}
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/// 获取权限状态
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Future<bool> getPermissionStatus() async {
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final Permission permission = Permission.microphone;
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//granted 通过，denied 被拒绝，permanentlyDenied 拒绝且不在提示
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final PermissionStatus status = await permission.status;
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if (status.isGranted) {
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return true;
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} else if (status.isDenied) {
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requestPermission(permission);
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} else if (status.isPermanentlyDenied) {
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openAppSettings();
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} else if (status.isRestricted) {
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requestPermission(permission);
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} else {}
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return false;
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}
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|
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///申请权限
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void requestPermission(Permission permission) async {
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final PermissionStatus status = await permission.request();
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if (status.isPermanentlyDenied) {
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openAppSettings();
|
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}
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}
|
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Future<void> requestPermissions() async {
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// 申请存储权限
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var storageStatus = await Permission.storage.request();
|
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// 申请录音权限
|
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var microphoneStatus = await Permission.microphone.request();
|
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if (storageStatus.isGranted && microphoneStatus.isGranted) {
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print("Permissions granted");
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} else {
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print("Permissions denied");
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// 如果权限被拒绝，可以提示用户或跳转到设置页面
|
||
if (await Permission.storage.isPermanentlyDenied) {
|
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openAppSettings(); // 跳转到应用设置页面
|
||
}
|
||
}
|
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}
|
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|
||
Future<void> startRecording() async {
|
||
// requestPermissions();
|
||
// if (state.isRecordingScreen.value) {
|
||
// showToast('录屏已开始,请勿重复点击');
|
||
// }
|
||
// bool start = await FlutterScreenRecording.startRecordScreen(
|
||
// "Screen Recording", // 视频文件名
|
||
// titleNotification: "Recording in progress", // 通知栏标题
|
||
// messageNotification: "Tap to stop recording", // 通知栏内容
|
||
// );
|
||
//
|
||
// if (start) {
|
||
// state.isRecordingScreen.value = true;
|
||
// }
|
||
}
|
||
|
||
Future<void> stopRecording() async {
|
||
// String path = await FlutterScreenRecording.stopRecordScreen;
|
||
// print("Recording saved to: $path");
|
||
//
|
||
// // 将视频保存到系统相册
|
||
// bool? success = await GallerySaver.saveVideo(path);
|
||
// if (success == true) {
|
||
// print("Video saved to gallery");
|
||
// } else {
|
||
// print("Failed to save video to gallery");
|
||
// }
|
||
//
|
||
// showToast('录屏结束,已保存到系统相册');
|
||
// state.isRecordingScreen.value = false;
|
||
}
|
||
|
||
@override
|
||
void onReady() {
|
||
super.onReady();
|
||
}
|
||
|
||
@override
|
||
void onInit() {
|
||
super.onInit();
|
||
|
||
// 启动监听音视频数据流
|
||
_startListenTalkData();
|
||
// 启动监听对讲状态
|
||
_startListenTalkStatus();
|
||
// 在没有监听成功之前赋值一遍状态
|
||
// *** 由于页面会在状态变化之后才会初始化，导致识别不到最新的状态，在这里手动赋值 ***
|
||
state.talkStatus.value = state.startChartTalkStatus.status;
|
||
|
||
// 初始化音频播放器
|
||
_initFlutterPcmSound();
|
||
|
||
// 启动播放定时器
|
||
// _startPlayback();
|
||
|
||
// 初始化录音控制器
|
||
_initAudioRecorder();
|
||
|
||
requestPermissions();
|
||
|
||
}
|
||
|
||
@override
|
||
void onClose() {
|
||
_stopPlayG711Data(); // 停止播放音频
|
||
state.listData.value = Uint8List(0); // 清空视频数据
|
||
state.audioBuffer.clear(); // 清空音频缓冲区
|
||
state.videoBuffer.clear(); // 清空视频缓冲区
|
||
|
||
state.oneMinuteTimeTimer?.cancel();
|
||
state.oneMinuteTimeTimer = null;
|
||
|
||
stopProcessingAudio();
|
||
// 清理图片缓存
|
||
_imageCache.clear();
|
||
state.oneMinuteTimeTimer?.cancel(); // 取消旧定时器
|
||
state.oneMinuteTimeTimer = null; // 取消旧定时器
|
||
state.oneMinuteTime.value = 0;
|
||
|
||
super.onClose();
|
||
}
|
||
|
||
@override
|
||
void dispose() {
|
||
stopProcessingAudio();
|
||
// 重置期望数据
|
||
StartChartManage().reSetDefaultTalkExpect();
|
||
super.dispose();
|
||
}
|
||
|
||
/// 处理无效通话状态
|
||
void _handleInvalidTalkStatus() {
|
||
state.listData.value = Uint8List(0);
|
||
// 停止播放音频
|
||
_stopPlayG711Data();
|
||
stopProcessingAudio();
|
||
}
|
||
|
||
/// 更新发送预期数据
|
||
void updateTalkExpect() {
|
||
TalkExpectReq talkExpectReq = TalkExpectReq();
|
||
state.isOpenVoice.value = !state.isOpenVoice.value;
|
||
if (!state.isOpenVoice.value) {
|
||
talkExpectReq = TalkExpectReq(
|
||
videoType: [VideoTypeE.IMAGE],
|
||
audioType: [],
|
||
);
|
||
showToast('已静音'.tr);
|
||
} else {
|
||
talkExpectReq = TalkExpectReq(
|
||
videoType: [VideoTypeE.IMAGE],
|
||
audioType: [AudioTypeE.G711],
|
||
);
|
||
}
|
||
|
||
/// 修改发送预期数据
|
||
StartChartManage().changeTalkExpectDataTypeAndReStartTalkExpectMessageTimer(
|
||
talkExpect: talkExpectReq);
|
||
}
|
||
|
||
/// 截图并保存到相册
|
||
Future<void> captureAndSavePng() async {
|
||
try {
|
||
if (state.globalKey.currentContext == null) {
|
||
AppLog.log('截图失败: 未找到当前上下文');
|
||
return;
|
||
}
|
||
final RenderRepaintBoundary boundary = state.globalKey.currentContext!
|
||
.findRenderObject()! as RenderRepaintBoundary;
|
||
final ui.Image image = await boundary.toImage();
|
||
final ByteData? byteData =
|
||
await image.toByteData(format: ui.ImageByteFormat.png);
|
||
|
||
if (byteData == null) {
|
||
AppLog.log('截图失败: 图像数据为空');
|
||
return;
|
||
}
|
||
final Uint8List pngBytes = byteData.buffer.asUint8List();
|
||
|
||
// 获取应用程序的文档目录
|
||
final Directory directory = await getApplicationDocumentsDirectory();
|
||
final String imagePath = '${directory.path}/screenshot.png';
|
||
|
||
// 将截图保存为文件
|
||
final File imgFile = File(imagePath);
|
||
await imgFile.writeAsBytes(pngBytes);
|
||
|
||
// 将截图保存到相册
|
||
await ImageGallerySaver.saveFile(imagePath);
|
||
|
||
AppLog.log('截图保存路径: $imagePath');
|
||
showToast('截图已保存到相册'.tr);
|
||
} catch (e) {
|
||
AppLog.log('截图失败: $e');
|
||
}
|
||
}
|
||
|
||
// 远程开锁
|
||
Future<void> remoteOpenLock() async {
|
||
final lockPeerId = StartChartManage().lockPeerId;
|
||
final lockListPeerId = StartChartManage().lockListPeerId;
|
||
int lockId = lockDetailState.keyInfos.value.lockId ?? 0;
|
||
|
||
// 如果锁列表获取到peerId，代表有多个锁，使用锁列表的peerId
|
||
// 从列表中遍历出对应的peerId
|
||
lockListPeerId.forEach((element) {
|
||
if (element.network?.peerId == lockPeerId) {
|
||
lockId = element.lockId ?? 0;
|
||
}
|
||
});
|
||
|
||
final LockSetInfoEntity lockSetInfoEntity =
|
||
await ApiRepository.to.getLockSettingInfoData(
|
||
lockId: lockId.toString(),
|
||
);
|
||
if (lockSetInfoEntity.errorCode!.codeIsSuccessful) {
|
||
if (lockSetInfoEntity.data?.lockFeature?.remoteUnlock == 1 &&
|
||
lockSetInfoEntity.data?.lockSettingInfo?.remoteUnlock == 1) {
|
||
final LoginEntity entity = await ApiRepository.to
|
||
.remoteOpenLock(lockId: lockId.toString(), timeOut: 60);
|
||
if (entity.errorCode!.codeIsSuccessful) {
|
||
showToast('已开锁'.tr);
|
||
StartChartManage().lockListPeerId = [];
|
||
}
|
||
} else {
|
||
showToast('该锁的远程开锁功能未启用'.tr);
|
||
}
|
||
}
|
||
}
|
||
|
||
/// 初始化音频录制器
|
||
void _initAudioRecorder() {
|
||
state.voiceProcessor = VoiceProcessor.instance;
|
||
}
|
||
|
||
//开始录音
|
||
Future<void> startProcessingAudio() async {
|
||
try {
|
||
if (await state.voiceProcessor?.hasRecordAudioPermission() ?? false) {
|
||
await state.voiceProcessor?.start(state.frameLength, state.sampleRate);
|
||
final bool? isRecording = await state.voiceProcessor?.isRecording();
|
||
state.isRecordingAudio.value = isRecording!;
|
||
state.startRecordingAudioTime.value = DateTime.now();
|
||
|
||
// 增加录音帧监听器和错误监听器
|
||
state.voiceProcessor
|
||
?.addFrameListeners(<VoiceProcessorFrameListener>[_onFrame]);
|
||
state.voiceProcessor?.addErrorListener(_onError);
|
||
} else {
|
||
// state.errorMessage.value = 'Recording permission not granted';
|
||
}
|
||
} on PlatformException catch (ex) {
|
||
// state.errorMessage.value = 'Failed to start recorder: $ex';
|
||
}
|
||
state.isOpenVoice.value = false;
|
||
}
|
||
|
||
/// 停止录音
|
||
Future<void> stopProcessingAudio() async {
|
||
try {
|
||
await state.voiceProcessor?.stop();
|
||
state.voiceProcessor?.removeFrameListener(_onFrame);
|
||
state.udpSendDataFrameNumber = 0;
|
||
// 记录结束时间
|
||
state.endRecordingAudioTime.value = DateTime.now();
|
||
|
||
// 计算录音的持续时间
|
||
final Duration duration = state.endRecordingAudioTime.value
|
||
.difference(state.startRecordingAudioTime.value);
|
||
|
||
state.recordingAudioTime.value = duration.inSeconds;
|
||
} on PlatformException catch (ex) {
|
||
// state.errorMessage.value = 'Failed to stop recorder: $ex';
|
||
} finally {
|
||
final bool? isRecording = await state.voiceProcessor?.isRecording();
|
||
state.isRecordingAudio.value = isRecording!;
|
||
state.isOpenVoice.value = true;
|
||
}
|
||
}
|
||
|
||
// 音频帧处理
|
||
Future<void> _onFrame(List<int> frame) async {
|
||
// 添加最大缓冲限制
|
||
if (_bufferedAudioFrames.length > state.frameLength * 3) {
|
||
_bufferedAudioFrames.clear(); // 清空过多积累的数据
|
||
return;
|
||
}
|
||
|
||
// 首先应用固定增益提升基础音量
|
||
List<int> amplifiedFrame = _applyGain(frame, 1.6);
|
||
// 编码为G711数据
|
||
List<int> encodedData = G711Tool.encode(amplifiedFrame, 0); // 0表示A-law
|
||
_bufferedAudioFrames.addAll(encodedData);
|
||
// 使用相对时间戳
|
||
final int ms = DateTime.now().millisecondsSinceEpoch % 1000000; // 使用循环时间戳
|
||
int getFrameLength = state.frameLength;
|
||
if (Platform.isIOS) {
|
||
getFrameLength = state.frameLength * 2;
|
||
}
|
||
|
||
// 添加发送间隔控制
|
||
if (_bufferedAudioFrames.length >= state.frameLength) {
|
||
try {
|
||
await StartChartManage().sendTalkDataMessage(
|
||
talkData: TalkData(
|
||
content: _bufferedAudioFrames,
|
||
contentType: TalkData_ContentTypeE.G711,
|
||
durationMs: ms,
|
||
),
|
||
);
|
||
} finally {
|
||
_bufferedAudioFrames.clear(); // 确保清理缓冲区
|
||
}
|
||
} else {
|
||
_bufferedAudioFrames.addAll(encodedData);
|
||
}
|
||
}
|
||
|
||
// 错误监听
|
||
void _onError(VoiceProcessorException error) {
|
||
AppLog.log(error.message!);
|
||
}
|
||
|
||
// 添加音频增益处理方法
|
||
List<int> _applyGain(List<int> pcmData, double gainFactor) {
|
||
List<int> result = List<int>.filled(pcmData.length, 0);
|
||
|
||
for (int i = 0; i < pcmData.length; i++) {
|
||
// PCM数据通常是有符号的16位整数
|
||
int sample = pcmData[i];
|
||
|
||
// 应用增益
|
||
double amplified = sample * gainFactor;
|
||
|
||
// 限制在有效范围内，防止溢出
|
||
if (amplified > 32767) {
|
||
amplified = 32767;
|
||
} else if (amplified < -32768) {
|
||
amplified = -32768;
|
||
}
|
||
|
||
result[i] = amplified.toInt();
|
||
}
|
||
|
||
return result;
|
||
}
|
||
}
|