Display *dpy; XvPortID port; Drawable d; GC gc; int vx, vy, dx, dy; unsigned int vw, vh; unsigned int dw, dh;
Arguments
dpy
Specifies the connection to the X server.
port
Defines the port from which to get video.
d
Defines the drawable (window) into which video is to be written.
gc
Defines the graphical context.
GC components are:
subwindow-mode, clip-x-origin, clip-y-origin,
and
clip-mask.
vx,vy,vw,vh
Define the size and location of the source (video) region
to be written. vx and vy define the
upper-left pixel of the region. vw and vh
define the width and height, in pixels, of the region.
dx,dy,dw,dh
Define the location and size of the destination (drawable) region
into which the video image is written.
dx
and
dy
define the upper-left pixel of the region.
dw
and
dh
define the width and height, in pixels, of the region.
Description
XvPutVideo writes video into a drawable.
The position and size of the source (video)
rectangle is specified by vx, vy, vw, and vh.
The position and size of the destination (drawable)
rectangle is specified by dx, dy, dw, and dh.
Video data is clipped to the bounds of the video encoding, scaled to the
requested drawable region size (or the closest size supported) and
clipped to the bounds of the drawable.
If video is successfully initiated, an XvVideoNotify event with detail
XvStarted is generated for the drawable. If the port is already in
use, its video is preempted, and if the new drawable is different than
the old, an XvVideoNotify event with detail XvPreempted is generated
for the old drawable. If the port is grabbed by another client, this
request is ignored, and an XvVideoNotify event with detail XvBusy is
generated for the drawable. If the port is not receiving a valid video
signal or if the video signal is interrupted while video is active a
VideoNotify event with detail XvHardError is generated for the drawable.
