| ViSio(DVR
Reference Design for MPEG-4 Encoder) |
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| 簡介：
ViSio是一個開放平台提供了完全可程式的計算核心，使用德州儀器的
TMS320DM642™ Digital Media
processor，提供的界面包括了 Audio/ Video IO
和週邊界面--Ethernet, USB, RS-232, CAN bus,
alarms,…。ViSio解決了所有
audio/video的重要問題:
lip sync, transport, streaming。 |
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特色：
處理能力:
- Texas
Instruments’ TMS320DM642™ Digital Media processor @
600 MHz
- Freescale’s MPC5200 PowerPC™
@ 400 MHz
- 64 MB SDRAM (PowerPC) + 16 MB
SDRAM (DSP)
- 32 MB Flash
- 128 kB Boot Flash
作業系統:
Audio and video
features:
The audio and video interfaces address the whole range of analog
and digital media systems.
Video interfaces:
- 4 analog video
inputs (composite BNC)
- 1 analog video output
(composite BNC)
Audio interfaces:
- 1 analog audio
mono input
- 1 analog audio mono output
General-use
interfaces:
A large number of different interfaces allow any kind of
applications and specificity.
- IDE/UDMA port
for 2 drives (HDD and DVD)
- Serial links interfaces for
data: RS-232, RS-485/422, USB 1.1 Host, CAN bus
- Ethernet 10/100 Mbps
- 5 keys and 3 LEDs on front
panel
- Infra-red remote control (RC5)
- 4 isolated alarm inputs
(dry-contact)
- 1 isolated alarm output
(dry-contact)
Other resources:
- CPU BDI Debug
interface
- DSP JTAG debug interface
(option).
Software
Development Kit (SDK):
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On DSP
Video Compression
- MPEG-4 SP and ASP
- MPEG-4 encoder filter
- Video duplication
filter
- Video resizing filter
- Text insertion filter
Design documentation
Orcad source files
(option), BOM and schematics (option), source code
examples, demos and application samples.
Available in option
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On Host
CPU
System Layers
Audio Compression
Audio/video Record:
- Mp4 Multiplexer
- Circular recording
Documented APIs
DSP control, User
Interface (keys/LEDs/IR remote control)
Board System
- Bootloader, Linux
Kernel, Distribution
- Board Support Package
(BSP)
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方塊圖：
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Business model：
3 entry points:
Level 1: Evaluation kit
- ViSio box (hardware set and
box)
- DVR application
(executable)
- Bill of material
Level 2: Development kit
- Level 1
- DSP and PowerPC drivers
- Linux OS
- Linux development chain
Level 3: Application kit
- Level 2
- Complete DVR application with
GPP source code and DSP executable
Option: DSP source code
- DSP source code for DVR
application
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| 參考資料：
ViSio's
data-sheet |
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