Vcon Z-KIT API, ZAPI User Manual

V

Z-Kit API (ZAPI)

A software development kit allowing customization of interactive,
high quality, video and audio solutions on a single chip.

Why ZAPI?

– Complete offering
– Short time to market
– Easy to use API
– 4th IP generation

technology
– H.263+ codec
– Support for up to 2

Equator BSP-15 chips
– Implements H.323 v4
– Includes PacketAssist
– Supports VX Works

RTOS

Key MXM Features

– Video call transfer,

forward, call pickup
– Dial plans
– Call detail records

(CDRs)
– Billing and reporting
– Policy services
– QoS services
– Endpoint

configuration
– Remote call initiation
– LDAP directory

services
– Gatekeeper

functionality
– Status monitoring

Contact us at
[e-mail]

TM

ZAPI Components

The Z-Kit Application Programming Interface
(ZAPI) is a set of media library components for
integrating VCON's high performance
capabilities into applications based on a single
chip. All the ZAPI components are highly
optimized to fit in one Equator BSP-15 chip.
For application demanding full D1 resolution
TV quality video the ZAPI may also utilize 2
BSP-15 chips. The ZAPI is composed of four
components - Audio, Video, LAN (H.323) and
System. Using ZAPI's Audio component, a full
audio codec and AEC based application may be
implemented. Using ZAPI's Video component,
a full video codec based application may be
implemented. Using ZAPI's LAN component, a
full videoconferencing client, including
VCON's advanced features such as
PacketAssist™, Adaptive Bandwidth
Adjustment, Media Xchange Manager™ and
more, may be implemented. Using ZAPI's
System component, debugging tools may be
added to the application.

The Audio API will start and stop multiple instances of audio encoding and decoding, receive
audio from microphone, send audio to speaker and activate Acoustic Echo Cancellation (AEC).
The LAN API includes all of the required functionality to build a LAN-based videoconferencing
client including support for gatekeepers, gateways, MCU's and VCON MXM. Included in the
LAN API is VCON's PacketAssist architecture, bringing advanced QoS to the video application
including proprietary networking algorithms that assure the best IP video and audio quality
even when used in congested networks. The Video API will start and stop multiple video
instances of encoding and decoding, control video encoding parameters and display layout. The
System API supports debug console and debugging messages.

– All in one solution: runs H.323 protocol

stack, H.263+ encoding and decoding at
30fps, audio encoding and decoding
including AEC

– All on one BSP-15 chip, allowing for rapid

development and quick time to market

– Highly optimized for one or two Equator

BSP-15 chips, providing high video quality,
low latency and low CPU usage.

– VCON PacketAssist™ architecture for

advanced Quality of Service (QoS) over IP

– VCON Media Xchange Manager™

management and scalability module

The ZAPI Difference

A complete interactive video/audio solution fully optimized for one or two Equator BSP-15
chips. Included in the ZAPI is over five years of IP communication experience that includes the
PacketAssist technology and the Media Xchange Manager, allowing for an integrated, highly
scalable and manageable video solution. The MXM module includes IP video PBX features such
as video call transfer, video call forward, and hunting groups. The module also includes
management and administration features such as billing and reporting, remote endpoint
configuration and online video directory services.

VCON’s Z-Kit allows for custom development
and integration of videoconferencing into a
variety of form factors.

V

ZAPI

To obtain a ZAPI evaluation kit, please contact us at [e-mail].

Specifications

VCON Headquarters

Tel: [phone]
Fax:[phone]

System

H.323 – up to 2 Mbit/s
SIP support with MXM
One or two Equator BSP-15 chips for optimized

price/performance
VxWORKS Real Time OS
Software Language: C, C++
Model Type: Object Code

Video Encode/Decode Rate

Encode/Decode: up to 30 fps QCIF, CIF, Half-D1

and D1 (depending on the number of BSP-15

processors used)
Real time encoding of multiple video inputs

Video Display

Independently sizable self-view with PIP capability

for remote
Independently sizable remote view with PIP

capability for self-view

Video Standards Support

H.261/ H.263+ with annexes J, F, D, I, T

Audio Standards Support

Narrow band (300-3400 Hz)
Wide band (50-7000 Hz)
Acoustic Echo Cancellation (200 ms tail length)
Automatic Gain Control
Automatic Noise Suppression
G.722, G.723.1, G.711, and G.729

ZAPI Logic Diagram

VCON Americas

Tel: [phone]
Fax:[phone]

VCON Europe

Tel: [phone]
Fax:[phone]

VCON China

Tel: [phone]
Fax:[phone]

VCON France

Tel: [phone]
Fax:[phone]

VCON Germany

Tel: [phone]
Fax:[phone]

VCON Italy

Tel: [phone]
Fax:[phone]

VCON Spain

Tel: [phone]
Fax:[phone]

VCON United Kingdom

Tel: [phone]
Fax:[phone]

www.vcon com
[e-mail]

©2002 VCON. All rights reserved.

DOC 50105 Rev. 2 02/03