Sensoray 2253 Linux - Manual (Page 18)

V4L2_CID_VFLIP: boolean vertical flip, default 0. Capture only.
S2253_CID_DFLIP:
Boolean diagonal flip, default 0. Capture only. Not available for YUYV,
UYVY or JPEG formats.
To rotate the video image, use the following flip combinations:
90 degrees: HFLIP=1 VFLIP=0 DFLIP=1
180 degrees: HFLIP=1 VFLIP=1 DFLIP=0
270 degrees: HFLIP=0 VFLIP=1 DFLIP=1
S2253_CID_INTERPOLATE:
Boolean, duplicates the functionality of the pix.field option in the
format struct, provided as a convenience to the GUI demo. Capture only.
S2253_CID_OUTPUT_MODE:
Integer range 0 to 3, with the following meanings:
0: Idle – display black screen on output.
1: Video Capture – display the input video on output.
2: Color Bars – display a set of color bars.
3: Flash – display a single white frame and play a sound blip. Useful for
measuring audio-video sync.
Output device only.
S2253_CID_LOW_LATENCY:
Boolean, determines whether low-latency playback mode is on or off.
0: Off – use when playing from a file or recorded stream.
1: On – use when playing a live stream. The playback device will
attempt to drop audio and video frames to reduce playback latency
based on the amount of stream data available. Frames are dropped
gradually to avoid noticeable glitches in the audio or video – however it
may take tens of seconds to settle at lowest possible latency.
Output device only.
S2253_CID_GPI:
Boolean, read-only control whose value indicates the state of the
general-purpose input.
S2253_CID_GPO:
Boolean, determines state of the general-purpose output.
S2253_CID_XLED_MODE:
Integer range 0 to 3, with the following meanings:
0: HVLock Blink – XLED will blink when video lock is absent.
1: HVLock Solid – XLED will turn off when video lock is absent.
2: On – XLED is always on (power indicator).
3: Off – XLED is always off.
S2253_CID_OSD_ENABLE:
Integer, determines whether the on-screen-display text is visible, or
which font is used.
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