【求助】HarmonyOS鸿蒙Next中使用AVPlayer播放手机内文件报错

【求助】HarmonyOS鸿蒙Next中使用AVPlayer播放手机内文件报错

使用AVPlayer播放手机内文件报错code is 5400102, message is Operate Not Permit: failed to SetSourceFd

源代码为

import media from '@ohos.multimedia.media'
import audio from '@ohos.multimedia.audio';
import common from '@ohos.app.ability.common';
import fs from '@ohos.file.fs';

export class PlayVoiceUtil {
  private avPlayer: media.AVPlayer

  async createavPlayer(fileurl: string) {
    this.avPlayer = await media.createAVPlayer()
    this.setAVPlayerCallback();
  
    let context = this as common.UIAbilityContext;
    let filesDir = context.filesDir;
    let fdPath = 'fd://';
    // 打开相应的资源文件地址获取fd，并为url赋值触发initialized状态机上报
    let filestring = '/' +fileurl
    let file = fs.openSync(filesDir + filestring, fs.OpenMode.READ_ONLY);
    fdPath = fdPath + '' + file.fd;
    this.avPlayer.url = fdPath;
  }

  // 注册avplayer回调函数
  setAVPlayerCallback() {
    // seek操作结果回调函数
    this.avPlayer.on('seekDone', (seekDoneTime) => {
      console.info(`AVPlayer seek succeeded, seek time is ${seekDoneTime}`);
    })
    // error回调监听函数,当avPlayer在操作过程中出现错误时调用reset接口触发重置流程
    this.avPlayer.on('error', (err) => {
      console.error(`Invoke avPlayer failed, code is ${err.code}, message is ${err.message}`);
      this.avPlayer.reset(); // 调用reset重置资源，触发idle状态
    })
    // 状态机变化回调函数
    this.avPlayer.on('stateChange', async (state, reason) => {
      switch (state) {
        case 'idle': // 成功调用reset接口后触发该状态机上报
          console.info('AVPlayer state idle called.');
          this.avPlayer.release(); // 调用release接口销毁实例对象
          break;
        case 'initialized': // avplayer 设置播放源后触发该状态上报
          console.info('AVPlayerstate initialized called.');
          this.avPlayer.prepare().then(() => {
            console.info('AVPlayer prepare succeeded.');
          }, (err) => {
            console.error(`Invoke prepare failed, code is ${err.code}, message is ${err.message}`);
          });
          break;
        case 'prepared': // prepare调用成功后上报该状态机
          console.info('AVPlayer state prepared called.');
          this.avPlayer.play(); // 调用播放接口开始播放
          break;
        case 'playing': // play成功调用后触发该状态机上报
          console.info('AVPlayer state playing called.');
        // if (this.count !== 0) {
        //   console.info('AVPlayer start to seek.');
        //   this.avPlayer.seek(this.avPlayer.duration); //seek到音频末尾
        // } else {
        //   this.avPlayer.pause(); // 调用暂停接口暂停播放
        // }
        // this.count++;
          break;
        case 'paused': // pause成功调用后触发该状态机上报
          console.info('AVPlayer state paused called.');
          this.avPlayer.play(); // 再次播放接口开始播放
          break;
        case 'completed': // 播放结束后触发该状态机上报
          console.info('AVPlayer state completed called.');
          this.avPlayer.stop(); //调用播放结束接口
          break;
        case 'stopped': // stop接口成功调用后触发该状态机上报
          console.info('AVPlayer state stopped called.');
          this.avPlayer.release(); // 调用reset接口初始化avplayer状态
          break;
        case 'released':
          console.info('AVPlayer state released called.');
          break;
        default:
          console.info('AVPlayer state unknown called.');
          break;
      }
    })
  }
}

export default new PlayVoiceUtil()

我调试发现是进入【initialized】状态，调用this.avPlayer.prepare()时报错：

Invoke prepare failed, code is 5400102, message is failed to prepare

我使用相同的代码，播放rawfile中的音频文件是可以播放的，猜测是手机音频文件的问题

调用位置如下

我们的需求是录制一段音频，用户可以点击播放，这里传入进去的filename就是获取到的录制的音频文件名称，

获取音频文件代码如下

getFileListData(): Array<string> {
  let context = this as common.UIAbilityContext;
  let filesDir = context.filesDir;

  // 查看文件列表
  let options = {
    recursion: false,
    listNum: 0,
    filter: {
      suffix: ['.m4a'] // 匹配文件后缀名为'.png','.jpg','.txt'         // 匹配文件全名以'test'开头
    },
  }
  let files = fs.listFileSync(filesDir, options);
  return files;
}

麻烦帮忙看下具体是哪里的问题