Samsung S3C6400X User Manual page 733

FIMV-MFC V1.0
VC1_DEC VC1_DEC_DEBLK
VC1_DEC_DIRECTMV
AVC_ENC_IP
TEMP_PIC
AVC_ENC
AVC_ENC_FMO
The static buffer is used commonly in whole processes/codecs and temporal picture buffer is re-used by each
process (codec).
When application enables Work Buffer configuration option, application must carefully configure it in order to avoid
unexpected malfunction of encoder. Work buffer can be divided into three parts, fixed static buffer, configurable
static buffer and configurable temporal buffer, respectively. Fixed static buffer is used for context switching and
static data storage of each instance. Size of fixed static buffer is 78 KB. Configurable static buffer is process
buffer defined in register description section and is used when decode AVC and VC-1. Configurable static buffer
must be allocated each instance and not be used as other usage before each instance. Configurable temporal
buffer is temporary buffer defined in register description section and must be allocated explained. Configurable
temporal buffer can be used after one picture processing end and reused by each instance.
For example, if application performs full D1 processing of one MPEG4 decoding, two AVC decoding, one VC-1
decoding, one MPEG4 encoding and 1 AVC encoding simultaneously, then the recommended configuration of
Work Buffer will be as follows.
Type Name
STATIC_PRC_DMEM
STATIC_PRC_SEQ
STATIC
STATIC_AVC_DEC_FM
O
STATIC_AVC_DEC_NAL
_BUF
AVC_DEC_PS
STATIC(c
onfigurabl
VC1_DEC_DirectMV
Overlap/deblock filter
working buffer
DirectMV working buffer
Intra prediction buffer of
Y/Cb/Cr
FMO group status buffer
Description
BIT processor data memory
of each process for context
switching
Static data storage of each
sequence
Dec FMO group buffer
Save NAL Unit Buffer
PS Data save buffer
Direct MV prediction buffer
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
VIDEO
8
32
72
256
Size (KB)
40
32
5.5
0.5
128
6.33
CODEC
21-107