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Get video caps from NDI stream

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This commit is contained in:
Daniel Vilar 2018-06-12 13:41:48 +02:00
parent 24f2cd57ad
commit 1ea558641e
1 changed files with 35 additions and 0 deletions
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35
gst-plugin-ndi/src/ndisrc.rs
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@ -509,6 +509,41 @@ impl NdiSrc {
true
}
fn fixate(&self, element: &BaseSrc, caps: gst::Caps) -> gst::Caps {
//We need to set the correct caps resolution and framerate
let state = self.state.lock().unwrap();
let recv = match state.recv{
None => {
//TODO Update gst_element_error with one more descriptive
//println!("pNDI_recv no encontrado");
gst_element_error!(element, gst::CoreError::Negotiation, ["No encontramos ndi recv"]);
//TODO if none not return anything
return caps;
}
Some(ref recv) => recv.clone(),
};
let pNDI_recv = recv.recv;
let mut pts2 = self.pts.lock().unwrap();
let mut pts: u64 = 0;
let video_frame: NDIlib_video_frame_v2_t = get_frame(self, element, pNDI_recv, &mut pts2.pts, &mut pts);
let mut caps = gst::Caps::truncate(caps);
{
let caps = caps.make_mut();
let s = caps.get_mut_structure(0).unwrap();
s.fixate_field_nearest_int("width", video_frame.xres);
s.fixate_field_nearest_int("height", video_frame.yres);
s.fixate_field_nearest_fraction("framerate", Fraction::new(video_frame.frame_rate_N, video_frame.frame_rate_D));
//s.fixate_field_str("format", &gst_video::VideoFormat::Rgb.to_string());
//caps.set_simple(&[("width", &(1600 as i32))]);
//s.set_value("width", &(1600 as i32));
}
// Let BaseSrc fixate anything else for us. We could've alternatively have
// called Caps::fixate() here
element.parent_fixate(caps)
}
//Creates the audio buffers
fn create(