How to compress the video taken by mobile phone because it is too big?

The video taken by the mobile phone is too large, and the compression method is as follows:

Mobile phone: iphone 13

System: iOS 13

Software: video photo compression master 10 1.0.3380+0.54.

1. Find the AppStore, select Search at the bottom right, search for video photo compression masters in the search bar, and select Install to open.

2. Enter the main interface of app, select compressed video, jump to the video in the album, open the video to be compressed, and click Add in the lower right corner.

3. Select the compression parameters in the pop-up window, press Go below to confirm, then enter the compression page, and wait for the compression ratio to reach 100, that is, complete the video compression.

The principle of video compression

The so-called video coding method refers to the way to convert a file in a certain video format into a file in another video format through a specific compression technology. The most important coding and decoding standards in video streaming are H.26 1, H.263 and H.264 of ITU, M-JPEG of moving picture expert group and MPEG series standards of moving picture expert group of international organization for standardization. In addition, the real video of the real network is widely used on the Internet.

Video compression technology is the premise of computer processing video. After the video signal is digitized, the data bandwidth is very high, usually above 20MB/ s, which is difficult for the computer to save and process. Using compression technology, the data bandwidth is usually reduced to 1- 10MB/ s, so that the video signal can be stored in the computer and processed accordingly.