As is well known, pure video stream only can be played orderly, and can't be random accessed or played in network. File format is designed to solve these problems.

视频流本身只能顺序播放，不能进行随机访问和网络流化播放，文件封装则是为解决这些问题而设计的。

youdao

As is well known, pure video stream only can be played orderly, and can't be random accessed or played in network. File format is designed to solve these problems.

视频流本身只能顺序播放，不能进行随机访问和网络流化播放，文件封装则是为解决这些问题而设计的。

youdao