package org.gstreamer;
import static org.gstreamer.lowlevel.GstVideoAPI.GSTVIDEO_API;
import java.awt.Dimension;
import org.gstreamer.lowlevel.GValueAPI.GValue;
public class Video {
private Video() {
}
/**
* A convenience function to retrieve a GValue holding the framerate from the caps on a pad.
*
* The pad needs to have negotiated caps containing a framerate property.
*
* @param pad
* @return video framerate, otherwise null if the pad has no configured caps or the configured caps do not contain a framerate.
*/
public static Fraction getVideoFrameRate(Pad pad) {
final GValue gvalue = GSTVIDEO_API.gst_video_frame_rate(pad);
return gvalue != null ? Fraction.objectFor(gvalue) : null;
}
/**
* Inspect the caps of the provided pad and retrieve the width and height of the video frames it is configured for.
*
* The pad needs to have negotiated caps containing width and height properties.
* @param pad
* @return dimensions of the video, otherwise null if the video size could not be retrieved
*/
public static Dimension getVideoSize(Pad pad) {
int [] width = { 0 };
int [] height = { 0 };
return GSTVIDEO_API.gst_video_get_size(pad, width, height) ? new Dimension(width [0], height [0]) : null;
}
}