distri meeting 30.10./31.10.2006 copyright: mayah communications, 2006 io [io] 8000 / 8001...

DISTRI Meeting 30.10./31.10.2006

Copyright: MAYAH Communications, 2006

IO [io] 8000 / 8001


Table of contents

Management of the IO [io] 8000 / 8001 - Windows Remote Control Software - Telnet - Frontpanel - Web Remote Interface

New IO [io] 8000 / 8001 features - MPEG-4 ASP vs. H.264 / AVC - MPEG-TS - Media Delivery Index (MDI)

IO [io] 800x series demonstration - Software Players - new set-top box (s-box 6200 HD?!) - mobileTV DVB-H

IO [io] 8000 / 8001 documentation



IO [io] 8000 / 8001


Management of the IO [io] 8000 / 8001

Windows Remote Control Software

+ Easy-to-use remote software

+ Automatic scan of available devices

+ No installation required

+ Control of more than one unit simultaneously

+ Load “pre-configured“ setup

+ Current version: 1.0.1.141



IO [io] 8000 / 8001



Connection window:

+ Unicast / Multicast / SAP

+ Encoder and Decoder

+ Identification of IO [io]

+ Exchange of SDP-File



IO [io] 8000 / 8001



Video input window:

+ Source of Encoder

+ Input format (PAL / NTSC)

+ Cropping options

+ Color settings



IO [io] 8000 / 8001



Video Encoder window:

+ Encoding parameters

+ “output“ of the Encoder

+ Video coding algorithm - MPEG-4 (ISO / IEC 14496)

=> part 2 => part 10 (H.264 / AVC)

+ Bit rate, frame rate, i-frame period



IO [io] 8000 / 8001



Video Decoder window:

+ Decoding parameters

+ “output“ of the Decoder

+ additional filters (deringing, deblocking)

+ Decoder buffer (network jitter)

+ color settings

+ Synchronization



IO [io] 8000 / 8001



Audio window:

+ Audio Encoder and Decoder

+ Setup of all audio parameters

+ Input / Output volume and gain

+ Levelmeters for monitoring

+ Coding algorithm, bit rate, sample rate, mode



IO [io] 8000 / 8001



Networking window:

+ General network setup of the unit

+ Adaption to network environment

+ Type of Service (ToS) / DiffServ

+ Time-to-Live (TTL)

+ Access control (password)



IO [io] 8000 / 8001



Messages window:

+ Status of the unit

+ Command line (send / send file)

+ Set / get system parameters

+ Manual setup of the device

+ Activate features with keycode



IO [io] 8000 / 8001



TELNET

+ via serial or IP connection

+ no additional software on PC required

+ manual adaption of each parameter

+ Plattform – independent



IO [io] 8000 / 8001



TELNET

Divided into 7 different categories:

# name description example

1 com_ common commands com_connect

2 dec_ decoder commands dec_algo ?

3 enc_ encoder commands enc_bitrate ?

4 ip_ network / IP commands ip_address ?

5 sys_ system commands sys_time ?

6 video_ video commands video_inheight ?

7 audio_ audio commands mainly CENTAURI



IO [io] 8000 / 8001



Frontpanel (only with IO [io] 8001)

+ Frontpanel consists of different parts: 1. LEDs 2. Arrow keys 3. Numeric keypad

+ Complete setup via frontpanel

+ Status display

+ Create profiles

+ Save Phonebook entries



IO [io] 8000 / 8001



Web Remote

+ IP connection via web browser

+ Web Remote saved on unit

+ No additional application on PC required

+ Plattform - independent

+ Sophisticated features

+ Current status at-a-glance



IO [io] 8000 / 8001


Table of contents







IO [io] 8000 / 8001


New IO [io] 8000 / 8001 features

MPEG-4 ASP vs. H.264 / AVC

Technical item MPEG-4 ASP H.264 / AVC

Block division 16x16, 8x8 16x16, 16x8, 8x16, 8x8, 8x4, 4x8 , 4x4

Inter prediction P: 1 frame P: n frame to 1 frame

B: 2 frames B: n + m frames to 1 frame

Intra prediction AC + DC (partial) Intra 16x16: 4 types

Intra 4x4 : 9 types

Quadrature conversion 8x8 DCT (with calculation errors) 4x4 pseudo DCT (without calculation errors)

Quantization Linear transformation Exponential transformation

Variable length coding VLC CAVLC, CABAC

D - mode Temporal only Temporal, spatial

Interlace Frame / field prediction MBAFF

Deblock filter Non-standard Standardized loop-filter

16

16

8

8

4 4 4 4

H.264 / AVC provides better picture quality while keeping the same bit rate !



IO [io] 8000 / 8001



MPEG-TS (Transport Stream)

+ TS for error-prone transmissions channels (e.g. broadcasting)

+ short fixed length packets of 188 bytes

+ Synchronization of encoder and decoder via Program Clock Reference (PCR)

+ Decoding done via Presentation Time Stamp (PTS) and Decoding Time Stamp (DTS)

+ Identification with the help of PIDs

+ Multiplexing of several programs possible



IO [io] 8000 / 8001



MPEG-TS (Transport Stream)



IO [io] 8000 / 8001



Media Delivery Index (MDI)

+ Measurement of network “quality“

+ Network jitter

+ Packet loss

+ Delay Factor (DF)– DF = [max(X) – min(X)] / media rate

+ Media Loss Rate (MLR)– MLR = [expected – received] / time interval



IO [io] 8000 / 8001



Usage of Media Delivery Index (MDI)

1. Identify, locate and address any packet loss

2. Identify, locate and measure jitter (using DF)

3. Establish an infrastructure monitor

=> Monitor qualityof video stream => Show system margin

=> MDI requires a network margin indication that warns system operators of impending operational issues.



IO [io] 8000 / 8001


Table of contents







IO [io] 8000 / 8001


IO [io] 800x series demonstration

Software Players

+ QuickTime Player (version 7.0.3 or higher)

+ Real Media Player 10 (based on QuickTime)

+ VideoLAN VLC Media Player (version 0.8.4a or higher)

+ MPlayer (based on VLC libraries) [Linux]

+ Windows Media Player 9=> requires DirectShow plug-in for MPEG-4 part 2 (available)=> requires DirectShow plug-in for H.264 (under construction)



IO [io] 8000 / 8001



New set-top-box (s-box 6200 HD)

+ Low-cost solution at decoding location

+ Output: breakout cable - Composite video

- SVideo - analog audio

+ Supporting: - MPEG-4 ASP - H.264 - MPEG-4 AAC audio

+ IR Remote control



IO [io] 8000 / 8001



MobileTV DVB-H



IO [io] 8000 / 8001


Table of contents







IO [io] 8000 / 8001




+ New Handbook (revision level September 2006)

+ Technical Data Sheet

+ IO [io] 8000 / 8001 brochure

+ Frequently Asked Questions (FAQ)

+ How to‘s on different topics

+ AES / EBU adapter and TTL cable

distri meeting 30.10./31.10.2006 copyright: mayah communications, 2006 io [io] 8000 / 8001...

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