calculate_display_ratio

Description:

public bool calculate_display_ratio (out uint dar_n, out uint dar_d, uint video_width, uint video_height, uint video_par_n, uint video_par_d, uint display_par_n, uint display_par_d)

Given the Pixel Aspect Ratio and size of an input video frame, and the pixel aspect ratio of the intended display device, calculates the actual display ratio the video will be rendered with.

Parameters:

dar_n	Numerator of the calculated display_ratio
dar_d	Denominator of the calculated display_ratio
video_width	Width of the video frame in pixels
video_height	Height of the video frame in pixels
video_par_n	Numerator of the pixel aspect ratio of the input video.
video_par_d	Denominator of the pixel aspect ratio of the input video.
display_par_n	Numerator of the pixel aspect ratio of the display device
display_par_d	Denominator of the pixel aspect ratio of the display device

Returns:

A boolean indicating success and a calculated Display Ratio in the dar_n and dar_d parameters. The return value is FALSE in the case of integer overflow or other error.

Namespace: Gst.Video

Package: gstreamer-video-1.0