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gstreamer-video: VideoRectangle bindings

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Philippe Normand 2017-12-26 16:55:53 +00:00 committed by Sebastian Dröge
parent 755982bb38
commit 1722b047bd
2 changed files with 37 additions and 0 deletions
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2
gstreamer-video/src/lib.rs
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@ -60,6 +60,8 @@ mod video_event;
pub use video_event::*;
mod functions;
pub use functions::*;
mod video_rectangle;
pub use video_rectangle::*;
// Re-export all the traits in a prelude module, so that applications
// can always "use gst::prelude::*" without getting conflicts

35
gstreamer-video/src/video_rectangle.rs Normal file
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@ -0,0 +1,35 @@
// Copyright (C) 2017 Philippe Normand <philn@igalia.com~
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use ffi;
#[derive(Clone, Copy, Debug, Eq, PartialEq, Hash)]
pub struct VideoRectangle {
pub x: i32,
pub y: i32,
pub w: i32,
pub h: i32,
}
impl VideoRectangle {
pub fn new(x: i32, y: i32, w: i32, h: i32) -> Self {
VideoRectangle {
x, y, w, h
}
}
}
pub fn center_video_rectangle(src: VideoRectangle, dst: VideoRectangle, scale: bool) -> VideoRectangle {
let mut result = ffi::GstVideoRectangle { x: 0, y: 0, w: 0, h: 0 };
let src_rect = ffi::GstVideoRectangle { x: src.x, y: src.y, w: src.w, h: src.h };
let dst_rect = ffi::GstVideoRectangle { x: dst.x, y: dst.y, w: dst.w, h: dst.h };
unsafe {
ffi::gst_video_sink_center_rect(src_rect, dst_rect, &mut result, scale as i32);
}
VideoRectangle::new(result.x, result.y, result.w, result.h)
}