The video and audio cached on the Bilibili mobile terminal are separated, and the PotPlayer player can be used to load the audio when playing the video, so that there is no need to merge the two files.
Specific operations:
① Use PotPlayer to open the video.m4s file.
② After opening, click the right mouse button, and in the pop-up option box, select Open - Load Audio.
③ Find the storage location of the audio file in the opened interface, and select all types in the file type, so as to display the audio file, select the audio file to open it.
PS:
Bilibili cache video file address on the mobile terminal: Android—data—tv.danmaku.bili—download