VLCLIB 2.0.5 can't determine stream FPS

[avi_tal]

Dear Friends,

I am trying to get streaming media Frames Per Second (fps) using the command: float mediaFps = libvlc_media_player_get_fps(mp);
This command always returns zero on streaming media (RTSP). It works fine for movie files.
I am currently using VLCLIB 2.0.5 which opens the stream successfully.
VLC Player is able to show the fps (twice from the real value though) on the "media info" tab.
Does anyone have an idea on why the return value for this function is always zero?

Your help is greatly appreciated.

Thanks,

Avi Tal.

[Rémi Denis-Courmont]

Not all sources provide frame rate meta-informations. If the player can show the value for the same source, then you probably are querying it too early.

[avi_tal]

Dear Rémi Denis-Courmont,

Thanks allot for your reply.

The player is able to show the value for the same source. LIBVLC calls the libvlc_media_player_get_fps() every 5 seconds, and the return value is always zero.
In fact, I was not able to get fps for any network stream using LIBVLC. Just local video files. The player is able to get fps for most network streams.

Any idea why?

Thanks,

Avi Tal.