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video: Add bindings for guess_framerate()

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This commit is contained in:
Sebastian Dröge 2020-05-20 09:29:29 +03:00
parent 8029d85232
commit 31313fb5c8
1 changed files with 22 additions and 0 deletions
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22
gstreamer-video/src/functions.rs
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@ -174,6 +174,28 @@ pub fn calculate_display_ratio(
}
}
pub fn guess_framerate(duration: gst::ClockTime) -> Option<gst::Fraction> {
skip_assert_initialized!();
unsafe {
let mut dest_n = mem::MaybeUninit::uninit();
let mut dest_d = mem::MaybeUninit::uninit();
let res: bool = from_glib(gst_video_sys::gst_video_guess_framerate(
duration.to_glib(),
dest_n.as_mut_ptr(),
dest_d.as_mut_ptr(),
));
if res {
Some(gst::Fraction::new(
dest_n.assume_init() as i32,
dest_d.assume_init() as i32,
))
} else {
None
}
}
}
#[cfg(test)]
mod tests {
use super::*;