Incorrect encoding x264

[WorldMaster]

Hello.
I ask for help in solving a nontrivial problem. I'm using the h264 encoder from link - https://www.videolan.org/developers/x264.html
I built a library under windows. To encode the video stream for the basis of an example from VideoLan. Coding is seemingly normal. The raw stream is played by any player but can not scroll through the frames.
Then I wrote my handler for the Avi container. The received video is normally played in all players and flipped through ... but ... the flipping takes too much time. The recorded process takes about 30 minutes. During this time, the video file takes about 500 megabytes. In this file, scrolling takes about 30 - 60 seconds.
The encoder parameters are taken by default. If necessary, I can provide everything I need.
Maybe someone faced a similar problem ?? How can this be solved?
Thank you.

[Rémi Denis-Courmont]

And your problem with LibVLC is what exactly?

[WorldMaster]

I can not understand what the problem is. That's why I ask for help.

[Rémi Denis-Courmont]

Nobody can help you if you cannot describe the problem. And so far you have not described anything related to LibVLC.