L64105 LSI Logic Corporation, L64105 Datasheet - Page 248

• Manufacturer Part Number: L64105
• Description: Mpeg-2 Audio/video Decoder
• Manufacturer: LSI Logic Corporation

8.2.2 Sequence Extension
Table 8.2
1. bslbf = bit stream left bit first; uimsbf = unsigned integer, most significant bit first
2. Although the low_delay bit is not used in the decoding process, low_delay bitstreams (I and P
8-6
Parameter
extension_start_code
(PscB5)
extension_start_code_
identifier
profile_and_level_
indication
progressive_sequence
chroma_format
horizontal_size_
extension
vertical_size_extension
bit_rate_extension
marker_bit
vbv_buffer_size_
extension
low_delay
frame_rate_extension_n
frame_rate_extension_d
pictures only) are supported by the decoder.
2
Sequence Extension Processing
Table 8.2
parameters present in the Sequence Extension.
Video Decoder Module
A[31:0] 32
H[11:0] 12 uimsbf
G[1:0]
M[4:0]
B[3:0]
C[7:0]
E[1:0]
F[1:0]
L[1:0]
J[7:0]
D0
K0
I0
shows the actions the decoder takes for each of the
4
8
1
2
2
2
1
8
1
2
5
uimsbf
uimsbf
uimsbf
uimsbf
uimsbf
uimsbf
uimsbf
uimsbf
uimsbf
uimsbf
bslbf
bslbf
n
n
y
y
y
y
y
y
y
y
y
y
y
y
y
n
y
n
n
n
n
n
n
n
n
n
C7 C6 C5 C4
H7 H6 H5 H4
K0 L1 L0 M4 M3
J7
0
0
0
0
J6
0
0
0
0
E1 E0
J5
0
0
0
J4
0
0
0
H11 H10 H9 H8
C3
H3
F1
J3
0
0
M2 M1 M0
C2
H2
F0
J2
0
0
G1 G0
C1 C0
E1 E0
H1 H0
F1 F0
L1 L0
J1
0
0
D0
K0
J0
I0
1