Disclosed are a video processing method and apparatus, a terminal and a medium. The method includes acquiring a first editing parameter of a playback speed of a continuous video and a second editing parameter of a playback speed of each of at least one target video segment, where the continuous video is synthesized from at least two video segments and the at least one target video segment includes at least one of the at least two video segments; calculating a target playback speed of each of the at least two video segments according to the first editing parameter and the second editing parameter corresponding to the each of the at least one target video segment; and synthesizing, based on the target playback speed of the each of the at least two video segments, the at least two video segments into a target video conforming to a preset duration.