Inserting empty interval into video

[Idsa]

I am writing video from camera to file. But there is a requirement to stop recording for some interval. There are two possible solutions: to create new file after each break or to insert some empty interval to output file. According to the logic of my application, the second solution looks better... but is there such a possibility in codecs/containers?

[Rémi Denis-Courmont]

Virtual input item "vlc://pause:%f" does nothing for a duration of %f seconds.

[Idsa]

But how can it be used in my case? I need this %f seconds to write, for example, black screen to the file.

[Idsa]

As I found out I need a variable frame rate video. I need to add a frame and set it's duration. Can it be implemented using VLC?

[Idsa]

I have reformulated my requirements according to this feature and made separate post: viewtopic.php?f=32&t=68456