Nvidia Quadro FX 4800 User Manual page 87

NV_CTRL_GVO_SYNC_DELAY_LINES
/*
* NV_CTRL_GVO_SYNC_DELAY_LINES - controls the delay between the input
* sync and the output sync in numbers of lines from vsync; this is a
* 12 bit value.
*/
#define NV_CTRL_GVO_SYNC_DELAY_LINES
NV_CTRL_GVO_INPUT_VIDEO_FORMAT_REACQUIRE
/*
* NV_CTRL_GVO_INPUT_VIDEO_FORMAT_REACQUIRE - must be set for a period
* of about 2 seconds for the new InputVideoFormat to be properly
* locked to.
* or framelock mode is entered into, when the user clicks the
* "detect" button.
* _FALSE.
*/
#define NV_CTRL_GVO_INPUT_VIDEO_FORMAT_REACQUIRE
#define NV_CTRL_GVO_INPUT_VIDEO_FORMAT_REACQUIRE_FALSE
#define NV_CTRL_GVO_INPUT_VIDEO_FORMAT_REACQUIRE_TRUE
NV_CTRL_GVO_GLX_LOCKED
/*
* NV_CTRL_GVO_GLX_LOCKED - indicates that GVO configurability is locked by
* GLX;
* glXGetVideoDeviceNV().
* either glXReleaseVideoDeviceNV() is called or the X Display used
* when calling glXGetVideoDeviceNV() is closed.
*
* When GVO is locked, setting of the following GVO NV-CONTROL attributes will
* not happen immediately and will instead be cached.
* need to be disabled/released and re-enabled/claimed for the values to be
* flushed. These attributes are:
*
*
NVIDIA Corporation
Quadro FX 4800/5800 and Quadro CX SDI User's Guide – Version 1.0
In nvidia-settings, we do a reacquire whenever genlock
This value can be written, but always reads back
this occurs when the GLX_NV_video_out function calls
NV_CTRL_GVO_OUTPUT_VIDEO_FORMAT
NV_CTRL_GVO_DATA_FORMAT
All GVO output resources are locked until
C
HAPTER
API Control
80 /* RW- */
81 /* -W- */
0
1
The GVO resource will
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