W dniu 18.04.2016 o 11:18, Przemysław Sobala pisze:
Hello
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},
AV_OPT_SEARCH_CHILDREN);
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
I've figured out, that there are two things missing:
1) "fps" AVOption is missing minimum and maximum valid values (vf_fps.c)
- hence my "out of range" error, but even after adding those I got
"Invalid argument" error, because...
2) write_number function (opt.c) is missing a case for
"AV_OPT_TYPE_VIDEO_RATE"
I could create a patch if you agree with me, just tell me what fps
AVOption value boundaries to set?
--
Regards
Przemysław Sobala
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