[Libav-user] Error while setting fps filter value

Przemysław Sobala przemyslaw.sobala at gmail.com
Mon Apr 18 11:18:17 CEST 2016

I'm trying to add the fps video filter to my filter chain.
I set the 'fps' option using:

     av_opt_set_video_rate(fps_filter_ctx, "fps", (AVRational) {15,1}, 

but after that I can see an error log entry:

     [fps] Value 15.000000 for parameter 'fps' out of range [0 - 0]

After using

     av_opt_set(fps_filter_ctx, "fps", "15", AV_OPT_SEARCH_CHILDREN);

everything works fine but I'm not in favour of AVRational -> char[] -> 
AVRational conversion
Przemysław Sobala

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