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NV Control VIO Controls

Quadro SDI Output PG-03776-001_v06 | 119

#define NV_CTRL_GVO_CAPABILITIES_ADVANCE_SYNC_SKEW

0x00000020

* NV_CTRL_GVO_COMPOSITE_TERMINATION - enable or disable 75 ohm

* termination of the SDI composite input signal.

#define NV_CTRL_GVO_COMPOSITE_TERMINATION 230

/* RW- */

#define NV_CTRL_GVO_COMPOSITE_TERMINATION_ENABLE 1

#define NV_CTRL_GVO_COMPOSITE_TERMINATION_DISABLE 0

* NV_CTRL_GVO_FLIP_QUEUE_SIZE - The Graphics to Video Out interface

* exposed through NV-CONTROL and the GLX_NV_video_out extension uses

* an internal flip queue when pbuffers are sent to the video device

* (via glXSendPbufferToVideoNV()). The NV_CTRL_GVO_FLIP_QUEUE_SIZE

* can be used to query and assign the flip queue size. This

* attribute is applied to GLX when glXGetVideoDeviceNV() is called by

* the application.

#define NV_CTRL_GVO_FLIP_QUEUE_SIZE 236 /*

RW- */

* NV_CTRL_GVO_LOCK_OWNER - indicates that the GVO device is available

* or in use (by GLX, Clone Mode, TwinView etc).

* The GVO device is locked by GLX when the GLX_NV_video_out function

* calls glXGetVideoDeviceNV(). The GVO device is then unlocked when

* glXReleaseVideoDeviceNV() is called, or the X Display used when

calling

* glXGetVideoDeviceNV() is closed.

* The GVO device is locked/unlocked for Clone mode use when the

* attribute NV_CTRL_GVO_DISPLAY_X_SCREEN is enabled/disabled.

* The GVO device is locked/unlocked by TwinView mode, when the GVO

device is

* associated/unassociated to/from an X screen through the

* NV_CTRL_ASSOCIATED_DISPLAY_DEVICES attribute directly.

* When the GVO device is locked, setting of the following GVO NV-

CONTROL

* attributes will not happen immediately and will instead be cached.

The

* GVO resource will need to be disabled/released and re-

enabled/claimed for

* the values to be flushed. These attributes are:

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SDI Technologies iH30 Spezifikationen Seite 124