flvjs,请求流的时候vhasAudio设为true,后端推过来的流如果没有音频就会黑屏,这个怎么解决
```html
if (flvjs.isSupported()) {
flvPlayer = flvjs.createPlayer({
type: 'flv',
url: data.info,
cors: true,
isLive: true,
vhasAudio:true,
withCredentials: false
}, {
enableWorker: false,
enableStashBuffer: false, // 关闭IO隐藏缓冲区
autoCleanupSourceBuffer: true,
});
flvPlayer.attachMediaElement(videoElement);
flvPlayer.load();
}
```