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XvPutVideo - write video into a drawable
XvPutVideo(dpy, port, d, gc, vx, vy, vw, vh, dx, dy, dw, dh)
int vx, vy, dx, dy;
unsigned int vw, vh;
unsigned int dw, dh;
- Specifies the display screen on which
the Xv Server is to accept requests from Xv clients. If the display option
is not specified, Xv uses the display screen specified by your DISPLAY
environment variable. The display option has the format hostname:number.
Using two colons (::) instead of one (:) indicates that DECnet is to be
used for transport.
- Defines the port from which to get video.
the drawable (window) into which video is to be written.
- Defines the graphical
context. GC components are: subwindow-mode, clip-x-origin, clip-y-origin,
- 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.
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
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.
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.
- Returned if XvPutVideo(3x)
- Returned if the Xv extension is unavailable.
- Returned if there were insufficient resources to process the
- Generated if the requested port does not
- Generated if the requested drawable does not exist.
if the requested graphics context does not exist.
- Generated if
there were insufficient resources to process the request.
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