fix: 修复特征提取失败(错误码81929)
问题: extractFaceFeature 返回错误码 81929 (MERR_FSDK_FACEFEATURE_FACEDATA) 根本原因: detectFaces 返回的人脸信息缺少 faceData 字段, 而虹软 SDK 的 extractFaceFeature 必须要有这个字段才能提取特征 修复: - FaceEngineManager.convertFaceInfoToList: 添加返回 faceData - ArcPlugin.handleExtractFaceFeature: 接收并传递 faceData 参数 - Dart API: extractFaceFeature 添加 faceData 参数 - example: 传递 faceData 到特征提取调用 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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lib/arc.dart
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174
lib/arc.dart
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import 'dart:typed_data';
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import 'arc_platform_interface.dart';
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class Arc {
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/// 获取平台版本
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Future<String?> getPlatformVersion() {
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return ArcPlatform.instance.getPlatformVersion();
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}
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/// 激活 SDK(在线激活)
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/// [appId] 应用 ID(从虹软控制台获取)
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/// [sdkKey] SDK 密钥(从虹软控制台获取)
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/// [activeKey] 激活密钥
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/// 返回包含 success, errorCode, message 的 Map
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Future<Map<String, dynamic>?> activeOnline({
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required String appId,
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required String sdkKey,
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required String activeKey,
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}) {
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return ArcPlatform.instance.activeOnline(
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appId: appId,
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sdkKey: sdkKey,
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activeKey: activeKey,
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);
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}
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/// 初始化人脸识别引擎
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/// [detectMode] 检测模式(0=VIDEO 视频流模式,1=IMAGE 图像模式)
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/// [orient] 检测角度(0/90/180/270/360)
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/// [maxFaceNum] 最大可检测人脸数量
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/// [combinedMask] 功能组合掩码
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/// 返回包含 success, errorCode, message 的 Map
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Future<Map<String, dynamic>?> init({
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int? detectMode,
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int? orient,
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int? maxFaceNum,
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int? combinedMask,
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}) {
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return ArcPlatform.instance.init(
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detectMode: detectMode,
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orient: orient,
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maxFaceNum: maxFaceNum,
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combinedMask: combinedMask,
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);
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}
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/// 检测人脸(同时进行 RGB 活体检测)
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/// [data] NV21 格式的图像数据
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/// [width] 图像宽度
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/// [height] 图像高度
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/// [format] 图像格式(2050=NV21,默认)
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/// 返回包含 success, errorCode, message, faceList, rgbLiveness, isRgbAlive 的 Map
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/// rgbLiveness: -1=未知, 0=非真人, 1=真人
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Future<Map<String, dynamic>?> detectFaces({
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required Uint8List data,
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required int width,
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required int height,
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int format = 2050,
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}) {
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return ArcPlatform.instance.detectFaces(
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data: data,
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width: width,
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height: height,
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format: format,
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);
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}
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/// 提取人脸特征
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/// [data] NV21 格式的图像数据
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/// [width] 图像宽度
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/// [height] 图像高度
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/// [rectLeft] 人脸框左边界(从detectFaces获取)
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/// [rectTop] 人脸框上边界(从detectFaces获取)
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/// [rectRight] 人脸框右边界(从detectFaces获取)
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/// [rectBottom] 人脸框下边界(从detectFaces获取)
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/// [format] 图像格式(2050=NV21,默认)
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/// [faceOrientation] 人脸角度(从detectFaces获取)
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/// [faceId] 人脸ID(从detectFaces获取)
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/// [faceData] 人脸数据(从detectFaces获取,必需!这是虹软SDK进行特征提取的关键数据)
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/// [extractType] 特征提取类型(0=注册, 1=识别,默认为识别)
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/// [mask] 口罩状态(0=未佩戴, 1=已佩戴,默认为未佩戴)
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/// 返回包含 success, errorCode, message, featureData 的 Map
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Future<Map<String, dynamic>?> extractFaceFeature({
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required Uint8List data,
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required int width,
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required int height,
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required int rectLeft,
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required int rectTop,
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required int rectRight,
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required int rectBottom,
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int format = 2050,
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int faceOrientation = 0,
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int faceId = -1,
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Uint8List? faceData,
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int extractType = 1,
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int mask = 0,
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}) {
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return ArcPlatform.instance.extractFaceFeature(
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data: data,
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width: width,
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height: height,
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rectLeft: rectLeft,
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rectTop: rectTop,
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rectRight: rectRight,
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rectBottom: rectBottom,
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format: format,
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faceOrientation: faceOrientation,
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faceId: faceId,
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faceData: faceData,
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extractType: extractType,
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mask: mask,
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);
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}
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/// 比对人脸特征
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/// [featureData1] 第一个人脸特征数据(从extractFaceFeature获取)
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/// [featureData2] 第二个人脸特征数据(从extractFaceFeature获取)
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/// [compareModel] 比对模型(0=生活照, 1=证件照,默认为生活照)
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/// 返回包含 success, errorCode, message, similarity 的 Map
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/// similarity: 相似度分数(0-1之间,推荐阈值:生活照0.8,证件照0.82)
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Future<Map<String, dynamic>?> compareFaceFeature({
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required Uint8List featureData1,
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required Uint8List featureData2,
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int compareModel = 0,
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}) {
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return ArcPlatform.instance.compareFaceFeature(
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featureData1: featureData1,
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featureData2: featureData2,
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compareModel: compareModel,
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);
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}
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/// 注册单张人脸特征到人脸库(用于1:N搜索)
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/// [searchId] 唯一标识符(用于后续搜索匹配,建议使用用户ID)
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/// [featureData] 人脸特征数据(从extractFaceFeature获取,建议使用extractType=0注册模式)
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/// [faceTag] 附属信息(可选,如用户名、员工ID等)
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/// 返回包含 success, errorCode, message 的 Map
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/// 注意:如果底库中已存在相同searchId,SDK会忽略此次注册
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Future<Map<String, dynamic>?> registerFaceFeature({
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required int searchId,
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required Uint8List featureData,
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String? faceTag,
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}) {
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return ArcPlatform.instance.registerFaceFeature(
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searchId: searchId,
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featureData: featureData,
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faceTag: faceTag,
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);
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}
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/// 批量注册人脸特征到人脸库(用于1:N搜索)
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/// [faceList] 人脸列表,每项需包含:
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/// - searchId: 唯一标识符(int,必填)
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/// - featureData: 人脸特征数据(Uint8List,必填)
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/// - faceTag: 附属信息(String,可选)
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/// 返回包含 success, errorCode, message 的 Map
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/// 示例:
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/// ```dart
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/// await arc.registerFaceFeatureBatch(
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/// faceList: [
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/// {'searchId': 1, 'featureData': feature1, 'faceTag': '张三'},
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/// {'searchId': 2, 'featureData': feature2, 'faceTag': '李四'},
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/// ],
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/// );
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/// ```
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Future<Map<String, dynamic>?> registerFaceFeatureBatch({
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required List<Map<String, dynamic>> faceList,
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}) {
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return ArcPlatform.instance.registerFaceFeatureBatch(
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faceList: faceList,
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);
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}
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}
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