Sensoray 2253 Windows - Manual (Page 27)

int devid,
int strmidx);
Sets the IDR (instantaneous decoding refresh) frame frequency (with respect
to GOPs) for H.264 streams. Does not apply to stream types other than H.264.
If val is set to 0 (default setting), there is only one IDR at the start of the
stream. If set to 1, there is an IDR every GOP. If val is set to 2, there is an IDR
every other GOP.
val
frequency of IDRs in H.264 stream.
devid
device id in the system (use 0 with a single board installed).
strmidx
stream index (0 or 1).
S2253_SetGopSize
MID2253_API int __stdcall S2253_SetGopSize (
int gopsize,
int devid,
int strmidx);
Sets the GOP (group of pictures) size for MPEG compressed streams ( MPEG4,
H.264). Use 0 for default.
gopsize
gop size. (Use 0 for default).
devid
device id in the system (use 0 with a single board installed).
strmidx
stream index (0 or 1).
S2253_GetGopSize
MID2253_API int __stdcall S2253_GetGopSize (
int *gopsize,
int devid,
int strmidx);
Returns the current GOP (group of pictures) size for MPEG compressed streams
(MPEG4, H.264).
gopsize
gop size.
devid
device id in the system (use 0 with a single board installed).
strmidx
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