I mean,
Suppose I on a few input video overlay first, in the video concat, then out of a question, these video simultaneously, concat can't do it, my level is to each video generated several temporary files, and then the concat
Refer to
In the project, the general is to Mr Into several small temporary video in synthesis, or a command,
If a, how to let overlay one by one? Carries out a next video, I tried in the input stream plus itoffset (is processing for the time being, forget how to spell) but as key frames, set of five seconds, three seconds but he began to show