Perfect Video over Any Network. Perfect Video over Any Network State-of-the-art Technology for Live Video Comunications
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1 Perfect Video over Any Network Perfect Video over Any Network State-of-the-art Technology for Live Video Comunications
2 Who We Are Established in 2004 Focus on the Professional Video Market Over 20 years of combined experience in Broadcast and Enterprise Video over Internet Protocol (IP) products Patent-Pending Error Correction & Quality of Service (QoS) Proven Patient-Critical Video Telemedicine Communications Our Competitive Edge 6 Pending US Patents Leading-edge QoS technologies for live video streaming Adaptable to any IP network.
3 Reference Customers NBC CBS
4 Advanced Video Transport & Interfacing Support for Nearly Any Video Interface: Digital: ASI, SDI, Firewire, Ethernet, WiFi, WiMax Analog: S-Video, Composite, Component SNMP & Web System Control & Device Management Fast, Custom Product Design Capability Low-Latency Live Video Transport Efficient & Reliable Video-on-Demand Transport Emphasis on Broadcast Quality Video
5 Product Offerings Hardware Codecs MPEG2 & MPEG4-SP (MPEG 2+4) ProMPEG FEC & Patent-Pending ARQ Error Correction Digital (SDI) & Analog Interfaces HD MPEG-2 4:2:2/4:2:0 Decoder with HD-SDI Output Firewire Gateways: HDV, DV & DVCPro-HD DVB-ASI / IP Gateways w/error Correction File Streamer Software Internet Streaming-Video QoS Replicator Servers HD & SD Software Decoder (StreamViewer): MPEG-2, MPEG-4 (parts 2 & 10), H.264, DV, DVCProHD
6 Market Addressed Broadcast Backhaul DVB-ASI to IP Gateways Production Firewire IP Gateway HD Decoder Education and Corporate Communications MPEG 2+4 Codecs Enterprise Firewire Gatway MPEG 2+4 Codecs Retail File Streamer
7 Advantages IP technology Know How Over 20 years experience in Video & Audio / IP transport ProMPEG Standards-Compliant FEC Participants & compatible with industry standard for IP transport Qvidium Advanced FEC (patent-pending) Goes beyond the capability of ProMPEG FEC Qvidium ARQ (patent-pending) Rapid re-send no additional Overhead lower processor overhead Only error correction to handle wireless & Internet connections
8 Streaming Video / IP Challenges Lost Packets Network congestion Poor connections Overloaded routers & gateways Out-of-order packets Dynamic routing Small packet routing Packet prioritization Stream Jitter Queuing delay Dynamic routing transport delay
9 Solutions FEC Adds additional packets to re-build lost data ARQ Intelligent, rapid re-transmission of lost data Similar to TCP/IP without the disadvantages Uses UDP, no rate limiting, eliminates ACKs Fixed, bounded delay Can be used over satellites and long links Maximizes Video Throughput Optimized for low delay video Automatic configuration
10 IP Gateway Application FEC Video Stream MPEG Encoder IP Gateway IP Encapsulation IP Network Video Stream MPEG Encoder IP Gateway IP De-Incapsulation
11 A Closer Look IP Gateway Sender Video MPEG Processor IP Network Processes Process Video/MPEG Stream Calculate FEC needed Add FEC to data Stream Encapsulate data in IP packets
12 A Closer Look IP Gateway Reciever IP Network Processor Video MPEG Processes Repair lost packets using FEC information Process Video/MPEG Output
13 Row Column FEC ROW LENGTH L L Default mode: Column FEC Typical overhead 5-10% COLUMN DEPTH D L+1 2L XOR Optional Mode: Column and Row FEC Typical Overhead 6% - 15% XOR L*D Payload Packet Column FEC Packet Common properties Burst loss up to row length correctable via data interleaving Max row length: 250 Max LxD: 1500 Latency with skew matrix ~LxD Row FEC Packet
14 FEC Premise Understanding of the network conditions Fixed, Preset FEC Rows and Columns Hope you get the correct settings If the network condition deteriorates Stop Transmission Change FEC Settings Re-Start Transmission Challenging for live transmission Must find break in programming to make change to FEC settings
15 FEC Pros and Cons Pros Can fix many problems Standardized Cons Needs Powerful CPU Hard configure Delay for interleaving Not Dynamic Add l BW Required Cannot handle large random packet loss
16 ARQ Simple 2-step process: Step 1: Transmit the DATA Step 2: If there is trouble on the line retransmit only the missing data Adds small fixed delay at receiver Can repeat as time allows Multiple retries nearly zero loss Auto measurement & configuration Ideal for wireless connections & Internet
17 IP Gateway Application ARQ Video Stream MPEG Encoder IP Gateway IP Encapsulation IP Network Video Stream MPEG Encoder IP Gateway IP De-Incapsulation
18 A High-level Look at ARQ Video MPEG Video MPEG IP Gateway Sender Processor IP Gateway Receiver Processor Request for Re-send Re-sent Data IP Network Processes Process Video/MPEG Stream Encapsulate data in IP packets Send Packets out If data is lost request for re-send is sent from Reciever
19 A Detailed Look at ARQ Patent for Low-Latency Automatic Repeat Request Packet Recovery Mechanism for Media Streams
20 Advanced Microsoft Video Technology Integration Windows Media 9 video encoding Windows DirectShow Network Send and Receive QoS and Error Correction Filters Video and Audio multiplexing Patent Pending Galois Field FEC Protects Windows Media 9 I,B,P video frames independently Protects audio frames optimally Synchronized pipeline for low latency playback Patent pending network clock synchronization Patent pending network de-jitter buffer Patent pending ARQ and FEC Error Correction Audio and Video DirectShow Rendering
21 Deployed Video / IP System Example MPEG 2+4 IP Codec Lobby 1 Video Teleconference Terminal HD-DVI Gateway w/ Local Server Failover Lobby 2 HD Satellite Receiver w/ DVB-ASI Output DVB-ASI to IP Gateway WAN Intranet Laptop for System Control Video File Server Local HD Monitor System Diagram Each HD-DVI Gateway Includes Local Server Failover
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