fis_lib_report/lib/pages/components/vid.dart

import 'dart:io';
import 'dart:typed_data';

import 'package:dio/dio.dart' as dio;
import 'package:vid/us/vid_us_image.dart';
import 'package:vid/us/vid_us_image_data.dart';

/// Vid文件帮助工具
class VidFileHelper {
  /// 从文件获取单帧图像
  ///
  /// [file] vid单帧图像文件对象
  static Future<VidUsImage?> getImageFromFile(File file) async {
    final data = await getDataFromFile(file);
    if (data != null) {
      final frame = data.getImage(0);
      return frame;
    }
    return null;
  }

  /// 从文件中获取Vid信息
  ///
  /// [file] vid文件对象
  static Future<VidUsImageData?> getDataFromFile(File file) async {
    try {
      final fileData = await file.readAsBytes();
      final vidData = VidUsImageData(fileData);
      return vidData;
    } catch (e) {
      // logger.e
      return null;
    }
  }

  /// 从链接获取单帧图像
  ///
  /// [url] vid单帧图像链接
  static Future<VidUsImage?> getImageFromNetwork(String url) async {
    final data = await getDataFromNetwork(url);
    if (data != null) {
      final frame = data.getImage(0);
      return frame;
    }
    return null;
  }

  /// 从链接获取Vid信息
  ///
  /// [url] vid文件链接
  static Future<VidUsImageData?> getDataFromNetwork(String url) async {
    try {
      final httpClient = dio.Dio(dio.BaseOptions(
        responseType: dio.ResponseType.bytes,
        sendTimeout: 10 * 1000,
      ));

      final response = await httpClient.get(url);
      httpClient.close();
      final bytes = response.data as Uint8List;
      final vidData = VidUsImageData(bytes);
      return vidData;
    } catch (e) {
      // logger
      return null;
    }
  }
}