update zh-cn/application-dev/media/video-playback.md.

Signed-off-by: N zengyawen <zengyawen1@huawei.com>

update zh-cn/application-dev/media/video-playback.md.
Signed-off-by: N zengyawen <zengyawen1@huawei.com>
bac1fd67 · zengyawen · Gitee · 72da82c0 · bac1fd67
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zh-cn/application-dev/media/video-playback.md zh-cn/application-dev/media/video-playback.md +1 -1

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--- a/zh-cn/application-dev/media/video-playback.md
+++ b/zh-cn/application-dev/media/video-playback.md
@@ -116,7 +116,7 @@ export class VideoPlayerDemo {
      console.info('pause success');
    }, this.failureCallback).catch(this.catchCallback);

-    // 通过promise回调方式获取视频轨道信息ommunication_dsoftbus
+    // 通过promise回调方式获取视频轨道信息communication_dsoftbus
    let arrayDescription;
    await videoPlayer.getTrackDescription().then((arrlist) => {
      if (typeof (arrlist) != 'undefined') {