HarmonyOS鸿蒙Next中求助使用AVPlayer播放.ogg格式的短音频没有声音

楼主你好，可参考如下代码：

```typescript
import media from '[@ohos](/user/ohos).multimedia.media';
import fs from '[@ohos](/user/ohos).file.fs';
import common from '[@ohos](/user/ohos).app.ability.common';
import { BusinessError } from '[@ohos](/user/ohos).base';

[@Component](/user/Component)
struct Index {
  [@State](/user/State) message: string = 'Hello World';
  private avPlayer: media.AVPlayer | null = null;
  private count: number = 0;
  private isSeek: boolean = true; // 用于区分模式是否支持seek操作
  private fileSize: number = -1;
  private fd: number = 0;

  async aboutToAppear(): Promise<void> {
    // 创建avPlayer实例对象
    this.avPlayer = await media.createAVPlayer();
    console.log('666660' + this.avPlayer.state)
    // 创建状态机变化回调函数
    this.setAVPlayerCallback(this.avPlayer);
    if (this.avPlayer != null) {
      // this.avPlayerFdSrcDemo();
      this.avPlayerUrlDemo();
    }
  }

  async avPlayerFdSrcDemo() {
    // 通过UIAbilityContext的resourceManager成员的getRawFd接口获取媒体资源播放地址
    let context = getContext(this) as common.UIAbilityContext;
    let fileDescriptor = await context.resourceManager.getRawFd('123.mp3');
    let avFileDescriptor: media.AVFileDescriptor = { fd: fileDescriptor.fd, offset: fileDescriptor.offset, length: fileDescriptor.length };
    this.isSeek = false; // 支持seek操作
    // 为fdSrc赋值触发initialized状态机上报
    if (this.avPlayer != null) {
      this.avPlayer.fdSrc = avFileDescriptor;
      console.log('666661' + this.avPlayer.state)
      console.log('666662' + this.avPlayer.state)
    }
  }

  async avPlayerLiveDemo() {
    // 创建avPlayer实例对象
    this.avPlayer = await media.createAVPlayer();
    // 创建状态机变化回调函数
    this.setAVPlayerCallback(this.avPlayer);
    this.isSeek = false; // 不支持seek操作
    this.avPlayer.url = 'https://www.cambridgeenglish.org/images/153149-movers-sample-listening-test-vol2.mp3'
  }

  async avPlayerUrlDemo() {
    // 创建avPlayer实例对象
    // 创建状态机变化回调函数
    const resourceManager = getContext(this).resourceManager
    const imageArray = await resourceManager.getMediaContent($r("app.media.dx"));
    let fdPath = 'fd://';
    let path: string = getContext().filesDir + "/01.mp3";
    console.log("yuv_path is:" + path);
    let file = fs.openSync(path, fs.OpenMode.READ_WRITE | fs.OpenMode.CREATE);
    fs.write(file.fd, imageArray.buffer).then(async (writeLen) => {
      console.info("write data to file succeed and size is:" + writeLen);
      fs.closeSync(file);
      let file1 = await fs.open(path);
      fdPath = fdPath + '' + file1.fd;
      if (this.avPlayer != null) {
        this.avPlayer.url = fdPath;
        console.log('666661' + this.avPlayer.state)
      }
    }).catch((err: BusinessError) => {
      console.info("write data to file failed with error message: " + err.message + ", error code: " + err.code);
    });
  }

  setAVPlayerCallback(avPlayer: media.AVPlayer) {
    // seek操作结果回调函数
    avPlayer.on('seekDone', (seekDoneTime: number) => {
      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
    avPlayer.on('error', (err: BusinessError) => {
      console.error(`Invoke avPlayer failed, code is ${err.code}, message is ${err.message}`);
      avPlayer.reset(); // 调用reset重置资源，触发idle状态
    })
    // 状态机变化回调函数
    avPlayer.on('stateChange', async (state: string, reason: media.StateChangeReason) => {
      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.');
          // 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('666AVPlayer state initialized called.666666666666666');
          avPlayer.prepare();
          break;
        case 'prepared': // prepare调用成功后上报该状态机
          console.info('AVPlayer state prepared called.');
          // 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.');
          break;
        case 'paused': // pause成功调用后触发该状态机上报
          console.info('AVPlayer state paused called.');
          // 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.');
          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.');
          // avPlayer.reset(); // 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;
      }
    })
  }

  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold)
        Button('play')
          .margin(10).onClick(async (event: ClickEvent) => {
            if (this.avPlayer != null) {
              console.log('6666677' + this.avPlayer.state)
              this.avPlayer.play();
            }
          })
        Button('reset').onClick(async (event: ClickEvent) => {
          if (this.avPlayer != null) {
            await this.avPlayer.reset();
            let context = getContext(this) as common.UIAbilityContext;
            let fileDescriptor = await context.resourceManager.getRawFd('稻香.mp3');
            let avFileDescriptor1: media.AVFileDescriptor = { fd: fileDescriptor.fd, offset: fileDescriptor.offset, length: fileDescriptor.length };
            this.isSeek = false; // 支持seek操作
            // 为fdSrc赋值触发initialized状态机上报
            this.avPlayer.fdSrc = avFileDescriptor1;
          }
        })
      }
      .width('100%')
    }
    .height('100%')
  }
}