I am using OpenVidu 2.29.0 for person to person conversation,
So if one of the parties close his cam by using close cam button then open it that makes a 2 camera files for him; one before the close and another is after open it, my question, is there any way to merge 2 cam files implicitly by OpenVidu?
If you are talking about INDIVIDUAL recording, the thing is that a user actively disconnecting from the session and reconnecting again will actually count as two different participants of the session.
In that way, they will generate different INDIVIDUAL recording files.
You can merge the different recording files after the session is closed, using any video post-processing tool such as ffmpeg.