Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Data Sheet
Product codes
AT91SAM9M10-G45-EK
1235
SAM9M10 [DATASHEET]
6355F–ATARM–12-Mar-13
46.9.19
Reference Picture Index 4 Base Address
Name:
VDEC_PIDXBA4
Addresses:
0x00900048
Access:
Read-write
• ANC: Anchor Picture Type
Previous anchor picture type:
0: Intra
1: Inter
• RCB: Rounding Control Bit
When low, 1/2 pixel motion compensation sum is rounded, otherwise clipped.
• ACC_FW: Forward Motion Vector
Forward motion vector Y resolution:
0: 1/2 accuracy
1: 1/4 accuracy
• OVERLAP_SM: Overlap Smoothing Method
Overlap smoothing method for macroblocks where PQUANT <= 8:
0: No overlap smoothing.
1: All macroblocks overlap smoothed.
2: Overlap smoothing depends on overflagmb syntax element per macroblock.
• OVERLAP_EN: Overlap Smoothing Enable
Overlap smoothing enable. Defines if overlap smoothing is enabled for current picture (includes information about
PQUANT which must be >= 9).
PQUANT which must be >= 9).
• MV_RANGE: Motion Vector Range
This control gives range to motion vectors:
0: Range is [-64,63.f],[-32,31.f].
1: Range is [-128,127.f],[-64,63.f].
2: Range is [-512,511.f],[-128,127.f].
3: Range is [-1024,1023.f],[-256,255.f].
31
30
29
28
27
26
25
24
HEADER_LEN
23
22
21
20
19
18
17
16
HEADER_LEN
15
14
13
12
11
10
9
8
–
–
PIC_4M
–
RED_REF_EN
DIFF_MV_RANGE
–
7
6
5
4
3
2
1
0
MV_RANGE
OVERLAP_EN
OVERLAP_MET
ACC_FW
RCB
ANC