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Application Note

Video Conferencing Demo Application for Dialogic Multimedia Products
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Video Conferencing Demo Application for Dialogic Multimedia Products
®

Application Note

Executive Summary
This application note presents a demo application and sample code that shows how the Dialogic Multimedia Products can support advanced video features for multimediaapplications, such as video transcoding, video transrating and image resizing, and multimedia conferencing. Topics include the design of the demo application, how conferencing and multimedia resources can be used to implement advanced video features, and how to build, configure, and run the demo.
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Video Conferencing Demo Application for Dialogic Multimedia Products
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Application Note

Table ofContents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Video Conferencing Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Demo Feature List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Building the Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Configuring the Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Running the Demo. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 DemoApplication Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Main Application Object . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Objects Used to Handle the Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Multimedia Conferencing . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Multimedia Conference Video Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Adding Parties to the Conference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Image Overlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . 9 Transcoding, Video Transrating, and Image Resizing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Coder Negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . 11 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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Video Conferencing Demo Application for Dialogic Multimedia Products
®

Application Note

Introduction
The Dialogic Multimedia Products support advanced video features, including video transcoding, video transrating and imageresizing, and multimedia conferencing. The specific products that support these advanced features are Dialogic® Multimedia Software for AdvancedTCA Release 2.0 (MMP Software 2.0 for ATCA) for the Dialogic® Multimedia Platform for AdvancedTCA (MMP for ATCA) and Dialogic® Multimedia Kit Software Release 1.0 for PCIe (MMK Software 1.0 for PCIe), which is part of the Dialogic® Multimedia Kit for PCIe (MMKfor PCIe).
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The two software releases will be collectively referred to as MMP/MMK software throughout this application note. The Dialogic Media Toolkit API (MTK API) is also included in the software release and can be used to control the layout of video conferences and manipulate image overlays.
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This application note describes a product demonstration application using advanced video...