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NVIDIA Corporation
74 Quadro FX 4500/5500 SDI User’s Guide– Version 2.0
C
HAPTER 5
API Control
NV_CTRL_GVO_LOCKED
/*
* NV_CTRL_GVO_LOCKED - indicates that GVO configurability is locked;
* this occurs when the GLX_NV_video_out function calls
* glXGetVideoDeviceNV(). All GVO output resources are locked until
* either glXReleaseVideoDeviceNV() is called or the X Display used
* when calling glXGetVideoDeviceNV() is closed.
*
* When GVO is locked; all GVO NV-CONTROL attributes are read only.
*/
#define NV_CTRL_GVO_GLX_LOCKED 82 /* R-- */
#define NV_CTRL_GVO_GLX_LOCKED_FALSE 0
#define NV_CTRL_GVO_GLX_LOCKED_TRUE 1
NV_CTRL_GVO_VIDEO_FORMAT_{WIDTH,HEIGHT,REFRESH_RATE}
/*
* NV_CTRL_GVO_VIDEO_FORMAT_{WIDTH,HEIGHT,REFRESH_RATE} - query the
* width, height, and refresh rate for the specified
* NV_CTRL_GVO_VIDEO_FORMAT_*. So that this can be queried with
* existing interfaces, XNVCTRLQueryAttribute() should be used, and
* the video format specified in the display_mask field; eg:
*
* XNVCTRLQueryAttribute (dpy,
* screen,
* NV_CTRL_GVO_VIDEO_FORMAT_480I_59_94_SMPTE259_NTSC
* NV_CTRL_GVO_VIDEO_FORMAT_WIDTH,
* &value);
*
* Note that Refresh Rate is in 1/1000 Hertz values
*/
#define NV_CTRL_GVO_VIDEO_FORMAT_WIDTH 83 /* R-- */
#define NV_CTRL_GVO_VIDEO_FORMAT_HEIGHT 84 /* R-- */
#define NV_CTRL_GVO_VIDEO_FORMAT_REFRESH_RATE 85 /* R-- */