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XvPutVideo - write video into a drawable
#include <X11/extensions/Xvlib.h>
int XvPutVideo(Display *dpy, XvPortID port, Drawable d, GC gc,
int vx, int vy, unsigned int vw, unsigned int vh,
int dx, int dy, unsigned int dw, unsigned int dh);
- 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.
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.
- [Success]
- Returned if XvPutVideo(3)
completed
successfully.
- [XvBadExtension]
- Returned if the Xv extension is unavailable.
- [XvBadAlloc]
- Returned if there were insufficient resources to process the
request.
- [XvBadPort]
- Generated if the requested port does not
exist.
- [BadDrawable]
- Generated if the requested drawable does not exist.
- [BadGC]
- Generated
if the requested graphics context does not exist.
- [BadAlloc]
- Generated if
there were insufficient resources to process the request.
XvPutStill(3)
,
XvGetVideo(3)
, XvVideoNotify(3)
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