We assume you ask about
Inject-VOD feature
Flashphoner streaming media solutions documentation site
docs.flashphoner.com
If you are doing this way, video VOD (mp4) will be injected from the first key frame.
This is how to inject from 10 th second:
1. /vod/startup
Launch the VOD stream as "stream1"
2. Pause 10 seconds.
3. /stream/inject/startup
Inject stream1 > main
Please note. This way has a low precision +- seconds.
To inject strictly 10th second with high precision less than 500ms, we have to implement seek over injected video. We will add a ticket.