Libavcodec r_frame_rate den num

[radnix]

Greetings

I'm not certain where to post this question so direct me accordingly:

I'm studying libavcodec and am looking at the following

/*AVFormatContext input video file*/
ifcx->streams[0]->r_frame_rate.den
ifcx->streams[0]->r_frame_rate.num

Anyone know what the r_frame_rate.den and r_frame_rate.num are ? Would appreciate an explination.

Thanks ahead

[Jean-Baptiste Kempf]

You should look at the libav documentation. Numerator and Denominator are quite frequent to define FPS though...