Vela CineCast 2000-0422, Installation And User Manual

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80 CineCast Quad Pro Version 2.6 Installation and User Manual
DECODER Command (45h)
NOTE: It is the user's responsibility to specify valid YCbCr values.
0034 Video Format: Command ignored by firmware.
0035 Read Back Frame Count: Command ignored by firmware. To read back
frame count, send a mode sense 6 (1Ah) for mode page 30h (Vela MPEG Video
Command/Status Page). The frame count is read back in bytes 8-11 (Current
Decoder Status).
0036 Set PAL Buffer Mode: Command ignored by firmware.
0037 Second Channel Audio Mode: This command sets the operational mode
of the second-channel audio decoder (Crystal CS4924). The IBM decoder can
decode two-channel MPEG (MPEG-1 layers I & II) audio. The second-channel
audio decoder can decode two-channel MPEG (MPEG-1 layers I & II) audio.
The CineCast Quad Pro Model 2000-0422-1 “Dash-1” decoder includes an up-
graded second-channel audio decoder (Crystal CS4931x) which supports:
• MPEG layers I & II.
• MPEG-2 AAC-ISO/IEC 13818-7 Advanced Audio Coding Low Complexity
Profile (LC), Audio Data Transport Stream (ADTS) format. (Note that AAC
is supported only in Transport streams.
• MPEG-1 Layer III Elementary streams (MP3 audio Elementary streams).
Byte 6
“C
b
”
16 – 240
(zero = 128)
128
0x80
44
0x2c
156
0x9c
72
0x48
Byte 7
“C
r
”
16 – 240
(zero = 128)
128
0x80
142
0x8e
44
0x2c
58
0x3a
Valid Range Magenta Red Blue Black
Byte 5
“Y”
16 – 235
(black level = 16)
84
0x54
65
0x41
35
0x23
16
0x10
Byte 6
“C
b
”
16 – 240
(zero = 128)
184
0xb8
100
0x64
212
0xd4
128
0x80
Byte 7
“C
r
”
16 – 240
(zero = 128)
198
0xc6
212
0xd4
114
0x72
128
0x80
Valid Range White Yellow Cyan Green