INTELLIGENT VIDEO SERVER DM357 - REFERENCE DESIGN
Packages & Pricing | HW Architecture | System Architecture | System Components
Software Architecture | Browser Utility | External Interface | 
Nuvation’s Intelligent Video Server (IVS) is a reference design for a 1-channel audio/video encode/decode streamer which can adapt a standard CCTV analog camera into an Internet Protocol (IP) streamer. The reference design features TI’s DaVinci™ DM357 DSP with TI video codecs, G.711 audio codec, Embedded Linux, and a compact mechanical enclosure.
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Packages & Pricing
| Package | Pricing |
1. Evaluation Unit Package: Intended for OEMs interested in evaluating the reference design for production license. Users can plug-and-play the IVS right out of the box, and experiment with different codec settings. Advanced users may experiment with reprogramming the DM357 with their own custom software builds. This package includes:
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IVS-DM357-std IVS-DM357-PoE |
2. Production License Package: Intended for full manufacturing and IP control including rights to make derivative products. Licensees receive entire design source code package, including:
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Contact Nuvation for Production License pricing |
- Customization Services
- Video encoder options
- Video analytics
- Microprocessor and/or DSP options
- Audio support
- Other outputs
- Drivers and APIs
- Production Manufacturing Services
- We can support transition to volume manufacturing with one of our certified EMS providers or an EMS firm of your choice
- Regulatory certification, RoHS Compliance, Test Fixturing, AVL crossing, Pilot and Production verification
Nuvation Intelligent Video Server
Hardware Block Diagram
An external video/audio source (eg. camera) can be connected to the IVS through to stream the video on a network. The source is connected through the IVS front panel. Video and audio connect directly to the AVIO board inside the IVS.
The AVIO board receives composite video through a BNC connector. Able to decode both NTSC and PAL video formats, a TVP5146 video decoder converts the video to 10-bit BT.656 and sends it to a TI DaVinci™ processor on the Encoder board. The video output connector passes NTSC / PAL analog video received from the DaVinci™ processor. Stereo audio input, output, and mic connections run through an audio codec, and on to a bi-directional I²S bus to the DaVinci™ processor. Both the video and audio codecs are controlled through an I²C interface.
Within the DaVinci™, the incoming BT.656 video stream is processed by the Fixed-Function Video Coprocessor. The Coprocessor encodes it with the chosen video codec and passes the data back to the ARM. The ARM then packetizes the data using the RTP/RTSP over UDP/TCP protocol and sends the stream to the Ethernet PHY chip for transmission over the network. This entire process is reversed when the IVS is set to Decode mode, encoded audio/video streams received on the Ethernet port are decoded and output as analog audio/video.
A web server running on the ARM within the DaVinci™ allows users on the network to configure IVS settings through a browser utility.
- AVIO Board
- Video in and video out BNC connectors
- Audio line in, line out, and mic connectors
- Pan/Tilt/Zoom control, RS-232 connector
- Video decoder TVP5146
- Audio codec TLV320AIC33
- TI DaVinci™ DM357 Encoder Board
- TI DaVinci™ DM357 with Fixed-Function Video Coprocessor and ARM926E
- 2 banks of DDR2, 128MB
- 64MB NAND Flash
- UART Port
- JTAG Port
- 10/100 Ethernet MAC routed to Ethernet PHY board
- USB 2.0 routed to OTG connector on IO board
- No blind or buried vias
- RJ-45 Ethernet
- USB 2.0 OTG (SW configured as USB master)
- Includes connector for optional PoE board
(ordered separately)
- I/O Board
- NTSC/PAL video pass-through, BNC connector
- Power in, 12V
- Auto-Iris
- Joystick
- Dip switches
Software & Drivers
- Runs Montavista Linux with TI DaVinci™driver support
- Encoder firmware application that encodes/decodes audio-video streams in real-time
- Decoder comes with audio-video synchronizing mechanisms for proper playback
- thttpd lightweight web server runs a browser utility for easy camera configuration
- Driver support for USB, video, audio and UART RS-232 communication
TI DaVinci™ DM357 Software Options
- Pre-programmed codecs:
- H.264 BP encode/decode
- MJPEG encode/decode
- G.711 encode/decode
- IVS is pre-programmed with embedded Linux 2.6 with real-time extensions, running on a ARM926 coprocessor within the DaVinci™
- MPEG-4 SP is pre-programmed in the DM357 and can be brought out to the browser UI controls with design customization
- Alarm IO, PTZ, and other features can be added with design customizations
Video Coprocessor Software
- The Fixed-Function Coprocessor runs the complex algorithms required to encode the raw video into the various video codec formats
- The ARM is responsible for managing the digital video interface and the web server
Included browser-based utility enables users to change settings, test parameters, update camera software, and change IP and MAC addresses. Served from the ARM coprocessor within the DaVinci™, the following groups of parameters can be configured:
- Encoder Settings
- Decoder Settings
- Network Settings
- Firmware Upgrade
- Restore & Reboot
Front Panel
- V-in: Video input (BNC)
- V-out: Video output (BNC)
- L-in: Stereo audio line input (1/8” jack)
- L-out: Stereo audio line output (1/8” jack)
- Mic: Microphone input (1/8” jack)
- PTZ: Pan/Tilt/Zoom (RS-232)
Back Panel
- Ethernet (RJ-45)
- Analog Video - NTSC / PAL (BNC)
- USB 2.0
- Auto-Iris
- Joystick
- Two dip switches (can be software-enabled)
Dimensions
- L: 4.25" (108mm), H: 1.7" (43mm), W: 1.8" (47mm)
