Sensoray 2250 Linux Ver2.0.X - Manual (Page 12)

0 on success
int SN_ClearCaption(
int board
);
Not supported in V2.0.0 release.
Clears all captions/overlays.
Parameters
board
board number in the system (use 0 for single board setups).
Returns
0 on success, negative value if error
int SN_GetOneFrame(
int board,
UINT8 *pBuf,
int buflen,
frame_info_t *pFI
);
Gets one video frame( JPEG if MOTIONJPEG, I,P,or B Frame if MPEG video).
Parameters
board
board number in the system (use 0 for single board setups).
pBuf
pointer to buffer to get frame
buflen
length of buffer
pFI
pointer to frameinfo structure( see s2250mid.h for definition)
Returns
0 on success, negative value if error
int SN_GetAudioData(
int board,
1