Samsung S3C6400X User Manual page 719

FIMV-MFC V1.0
4
CMD_ENC_PIC_OPTION (0x194)
Bit
0
1
PreRotEn R/W
Name Type
PicSkipEn R/W
IdrPic R/W
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
MULTI-FORMAT
RotAng[1:0]
0 : 0 degree counterclockwise rotate
1 : 90 degree counterclockwise rotate
2 : 180 degree counterclockwise rotate
3 : 270 degree counterclockwise rotate
If this field is 4'b0000, pre-rotation is disabled.
Pre-rotation enable
If this field is "1", the source image is rotated
prior to encoding,
If this field is "0", the pre-rotation is disabled and
PreRotMode field is ignored.
Function
Picture skip flag
If this field is "1", EncSrcAddrY, EncSrcAddrCb,
EncSrcAddrCr are ignored and one skipped
picture is encoded. In that case, the
reconstructed image at decoder side is a copy of
previous picture The skipped picture is encoded
as P type (Inter) picture regardless of
[EncGopNum].
Host may set this field as "1" when next source
frame to be encoded is not available
For example of encoding frame rate 5 Hz case, if
camera output is not available at 4th picture,
host must set ENC_PIC_RUN command 5 times
during one seconds and set PicSkipEn flag "0, 0,
0, 1, 0"
If this field is "1", the source image is encoded
as IDR(Instantaneous Decoding Refresh) picture
at H.264 or I(Intra) picture at MPEG-4/H.263
regardless of [EncGopNum] value
The IDR picture is I(Intra) picture with zero
frame_num value and all of decoding status(ex.
reference picture list) are reset.
The first frame in bit stream is encoded IDR
CODEC
VIDEO
Comman
d
ENC_PIC_
RUN
21-93