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PRELIMINARY
FIMV-MFC V1.0
MULTI-FORMAT
VIDEO
CODEC
2
1-83
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.
0 : do not check Reference decoder buffer delay
constraint
31 SkipDisable
R/W
Rate
control automatic skip disable
If this flag is “0”, BIT processor may skip one picture if
available bits are insufficient for accommodate the bit
budget.
If this flag is “1”, BIT processor never skip the picture
but encoded bitstream may be overflow than target bit
rate at hard-to-encode sequences.
This flag is ignored if [RcEnable] is “0”.
CMD_ENC_SEQ_RC_BUF_SIZE (0x1B0)
Bit
Name
Type
Function
Command
31:0
VbvBufSize
R/W
Reference Decoder buffer size in bits
This value is ignored if RcEnable = 0 or InitDelay = 0
Maximum allowed value is 0x7FFF_FFFF
0 : do not check Reference decoder buffer size
constraint
ENC_SEQ_I
NIT
CMD_ENC_SEQ_INTRA_MB (0x1B4)
Bit
Name
Type
Function
Comman
d
15:0
IntraMbRefreshNum
R/W
Intra MB refresh number
Must be less than encoded
(PictureHeight*PictureWidt/256)
0 – Intra MB refresh is not used
N – At least N number of MBs are encoded as
Intra mode at every picture
ENC_SEQ
_INIT