User`s guide

36 Dialogic
®
Host Media Processing Software Release 4.1LIN Release Guide
Programming Libraries
The 3G-324M API library can be used in conjunction with other API libraries to develop
multimedia services such as video conferencing, video-on-demand, surveillance, and
multimedia entertainment services.
For more information about this API library, see the Dialogic
®
3G-324M API Programming
Guide and Library Reference.
New Features
The 3G-324M API library provides the following new capabilities in Dialogic
®
HMP
Software 4.1LIN:
MONA support
Media Oriented Negotiation Acceleration (MONA) standard is a group of
complementary procedures designed to significantly reduce delay in H.324 call setup
time. To support MONA, a field is added in the M3G_H223_SESSION structure to
enable MONA per call and notification events are added, among other updates.
New video codecs
H.264 and MPEG-4 are supported.
Video transcoding, video transrating, and image resizing
To support these video features, the M3G_OCTET_STRING structure is added to the
library, and M3G_MPEG4_OPTIONS and M3G_PARM_INFO structures are updated.
For more information on video transcoding, see Section 3.1, “New Multimedia
(Audio/Video) Transcoding”, on page 15.
Connecting audio device and DTI or voice device
The audio device type (m3gB1Tn:AUDIO1) in the 3G-324M endpoint can be
connected to a digital network interface device (dtiBxTy) or a voice device (dxxxBxCy)
through the dev_Connect( ) and dev_Disconnect( ) functions.
For more information about these updates, see the Dialogic
®
3G-324M API Programming
Guide and Library Reference and the Dialogic
®
Device Management API Library
Reference.
5.3 Dialogic
®
Conferencing (CNF) API Library
The Dialogic
®
Conferencing (CNF) API library supports development of conferencing
applications. The conference can take place over an IP network and/or over traditional
PSTN lines.
For more information, see the Dialogic
®
Conferencing API Programming Guide and the
Dialogic
®
Conferencing API Library Reference.