The main tasks of video editing are the removal of unnecessary plot sections, the docking of individual fragments of video material, the creation of transitions between them, the addition of special effects and explanatory titles. There are three types of video editing: linear, nonlinear and hybrid.
Linear editing involves overwriting video material from two (or several) video sources to a video recorder with cutting out unnecessary and ”gluing" the necessary video scenes and adding effects. The main drawback is the loss of quality, high labor intensity and a large number of video equipment.
Non-linear installation is carried out on the basis of computer systems. At the same time, the original video materials are first entered into the computer, and then installation procedures are performed on them. Advantages - practically no loss of quality with multiple "movements” of video clips, significant savings in video equipment. Disadvantages - non-real-time work, long processing time of video material, high labor intensity, limited amount of video material entered into the computer.
Hybrid mounting combines the advantages of linear and nonlinear mounting (a nonlinear video editing system acts as a video source). The disadvantage is usually a higher price.
Recently, non-linear editing has almost supplanted other types of video editing from our lives.