119 lines
5.8 KiB
Dart
119 lines
5.8 KiB
Dart
import 'dart:typed_data';
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import 'package:convert/convert.dart';
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import 'package:flutter_sound/flutter_sound.dart';
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import 'package:get/get.dart';
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import 'package:star_lock/appRouters.dart';
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// import 'package:just_audio/just_audio.dart';
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import 'package:star_lock/main/lockDetail/monitoring/monitoring/lockMonitoring_page.dart';
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import 'package:star_lock/talk/call/g711Decoder.dart';
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import 'package:star_lock/talk/call/iFrameInfo.dart';
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class CallTalk {
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static int POS_iframe_index = 63;
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static int POS_alen = 65;
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static int POS_blen = 73;
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static int POS_bag_index = 71;
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static int POS_bag_num = 69;
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static int POS_data = 77;
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static int ABUF_NUM = 100;
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static int FIRSTINDEX = 1;
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int status = 0; // 假设有这个成员变量
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IframeInfo iframe = IframeInfo(); // 假设有这个成员变量
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LockMonitoringPage callOut = const LockMonitoringPage();
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FlutterSoundPlayer _audioPlayer = FlutterSoundPlayer();
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Future<void> getAVData(Uint8List bb, int len) async {
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//视频数据
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// String hexData =
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// '5858584349449601075439415f396333613730323264346364a5a5a5a5c0a809a3503138363832313530323337000000000000000030303030420e000002000000b33300001f000100b301b301ffd8ffe000114a4649460001010000';
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// Uint8List bb = Uint8List.fromList(hex.decode(hexData));
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//音频数据
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String hexData =
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'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';
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Uint8List bb = Uint8List.fromList(hex.decode(hexData));
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// 音频数据
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if (bb[61] == 1) {
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// 如果是音频数据且状态符合条件
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_initializeAudioPlayer();
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// 用你的711音频数据替换这里的Uint8List
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Uint8List rawData = G711Decoder().decodeG711uLaw(bb);
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_playRawData(rawData);
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}
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// 视频数据
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else {
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int bagLen = getShortFromByte(bb, POS_blen + 2);
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int getIframeIndex = getShortFromByte(bb, POS_iframe_index);
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int alen = getShortFromByte(bb, POS_alen);
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int blen = getShortFromByte(bb, POS_blen);
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int getBagIndex = bb[POS_bag_index] & 0xff;
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int getBagNum = bb[POS_bag_num] & 0xff;
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if (getIframeIndex != iframe.iframeIndex) {
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iframe = IframeInfo();
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iframe.iframeIndex = getIframeIndex;
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iframe.bagNum = getBagNum;
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iframe.cur_len = alen;
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iframe.bb = Uint8List(alen);
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}
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iframe.bagReceive++;
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int start = bagLen * (getBagIndex - FIRSTINDEX);
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int end = start + blen;
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// 确保 iframe!.bb 不为 null，并且足够长
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if (iframe.bb == null || iframe.bb!.length < end) {
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iframe.bb = Uint8List(end);
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}
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copyBytes(iframe!.bb!, start, bb, POS_data, blen);
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// 打印输出看看字节数组的内容
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print('Copied Bytes: ${iframe.bb}');
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Uint8List data = iframe.bb!.sublist(0, iframe.cur_len);
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Get.toNamed(Routers.lockMonitoringPage,
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arguments: {"lockId": widget.lockListInfoItemEntity.lockId});
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// 打印拷贝后的目标数据
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print(iframe.bb);
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}
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}
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int getShortFromByte(Uint8List bb, int pos) {
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ByteData byteData = ByteData.sublistView(bb, pos, pos + 2);
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return byteData.getInt16(0, Endian.little);
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}
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void copyBytes(Uint8List destination, int destStart, Uint8List source,
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int sourceStart, int length) {
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if (destination.length < destStart + length ||
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source.length < sourceStart + length) {
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// 处理越界的情况，这里你可以抛出异常或者进行其他处理
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print('Error: Index out of range');
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return;
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}
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for (int i = 0; i < length; i++) {
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destination[destStart + i] = source[sourceStart + i];
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}
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}
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Future<void> _initializeAudioPlayer() async {
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await _audioPlayer.openPlayer();
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}
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Future<void> _playRawData(Uint8List rawData) async {
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await _audioPlayer.startPlayer(
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fromDataBuffer: rawData,
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codec: Codec.pcm16,
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whenFinished: () {
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// 播放完成时的回调
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print("Playback finished");
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},
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);
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}
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}
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