L64105 LSI Logic Corporation, L64105 Datasheet - Page 255

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

8.2.7 Quant Matrix Extension
Table 8.7
1. bslbf = bit stream left bit first; uimsbf = unsigned integer, most significant bit first
2. Chroma quant matrix extension values are not processed since they are not required for Main Profile
Parameter
extension_start_code_identifier
(0x3)
load_intra_quantizer_matrix
if (load_intra_quantizer_matrix)
intra_quantizer_matrix[64]
load_non_intra_quantizer_matrix
if
(load_non_intra_quantizer_matrix)
non_intra_quantizer_matrix[64]
load_chroma_intra_quantizer_
matrix
if (load_chroma_intra_quantizer_
matrix)
chroma_intra_quantizer_matrix[64]
load_chroma_non_intra_quantizer_
matrix
if (load_chroma_non_intra_
quantizer_matrix)
chroma_non_intra_quantizer_
matrix[64]
@ Main Level.
Quant Matrix Extension Processing
Table 8.7
parameters present in the Quant Matrix Extension.
Postparser Operation
1
shows the actions the decoder takes for each of the
2
A[3:0]
B0
C0
D0
8 * 64 uimsbf n
8 * 64 uimsbf n
8 * 64 uimsbf n
8 * 64 uimsbf n
4
1
1
1
1
uimsbf
uimsbf n
uimsbf n
uimsbf n
uimsbf n
y
y
y
y
y
y
n
n
n
n
0
0
0
0
0
0
1
8-13
B0
C0
D0
1