录像是否支持自己设置指定的MP4编码？（MP4 = 带有 H.264 视频编码和 AAC 音频编码的 MPEG 4 文件）

## Current use version？
#### 当前使用的版本是多少？

```
v2.5.1
```

## Will this problem occur in demo?
#### Demo能否复现这问题？

```
部分机型录像的mp4（MP4 = 带有 H.264 视频编码和 AAC 音频编码的 MPEG 4 文件）非此编码，导致视频在浏览器不能播放，新版本中是否可以手动设置MP4的视频编码和音频编码？？
```

## Describe the problem or provide an error log？
#### 描述问题或提供错误log？

```

```

Start by reviewing the video-recording implementation in version v2.5.1 and how it selects MP4 video and audio codecs. Determine whether configurable H.264 and AAC output can be supported, then verify browser playback on affected devices. Done means the supported encoding choice is implemented and its playback behavior is verified.

Written by the indexing model from the issue text.