The function type for the video_receive_frame callback.
The size of plane data is derived from width and height as documented below.
Strides represent padding for each plane that may or may not be present. You must handle strides in your image processing code. Strides are negative if the image is bottom-up hence why you MUST abs() it when calculating plane buffer size.
| friend_number |
The friend number of the friend who sent a video frame. |
| width |
Width of the frame in pixels. |
| height |
Height of the frame in pixels. |
| y |
Luminosity plane. Size = MAX(width, abs(ystride)) * height. |
| u |
U chroma plane. Size = MAX(width/2, abs(ustride)) * (height/2). |
| v |
V chroma plane. Size = MAX(width/2, abs(vstride)) * (height/2). |
| ystride |
Luminosity plane stride. |
| ustride |
U chroma plane stride. |
| vstride |
V chroma plane stride. |