Samsung S3C6400X User Manual page 716

S3C6400X RISC MICROPROCESSOR
RET_DEC_PIC_FRAME_NUM (0x1C0)
Bit
15:0
RET_DEC_PIC_IDX (0x1C4)
Bit
15:0
RET_DEC_PIC_ERR_MB_NUM (0x1C8)
Bit
15:0
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
21-90
Specifications and information herein are subject to change without notice.
Name Type
DecFrameNum R/W
Name Type
DecPicIdx R/W
Name Type
ErrMbNum R/W
MULTI-FORMAT VIDEO CODEC
Function
Decoded frame number.
After BIT decodes one frame, BIT increase
frame number and then stores frame number to
this register.
Function
Display frame index
After BIT decodes one frame, BIT return display
frame index to this register
The frame index is the index of array of frame
buffer address that host informs by
SET_FRAME_BUF command
If BIT return -1(0xFFFF), it means that all
pictures of given bitstream have already been
decoded. For example, if host has given a
bitstream containing 20 pictures, host will get -1
value from 21th PICTURE_RUN.
In file play mode, BIT return -3(0xFFFD) when
BIT does not have a picture to be displayed. For
example, BIT does not have a picture to be
displayed before decodes maximum 16 pictures
when BIT decodes H.264 stream with reorderEn
bit enable. And BIT may not have picture to be
displayed before decodes 2 picture when BIT
decodes VC-1 streams which have B-frames.
Function
Error MB number in current decoded picture
If BIT recognizes the stream error, BIT performs
error concealment in MB basis and returns
concealed MB number in whole picture.
If this value is "0", the frame is decoded with no
error.
Comman
d
DEC_PIC_
RUN
Comman
d
DEC_PIC_
RUN
Comman
d
DEC_PIC_
RUN