System information
24 Dialogic
® 
HMP Software Release 3.0WIN Release Guide — December 2010
Dialogic Corporation
Features
– Supports a proprietary video file format and the Linear PCM (128 kbps) audio file 
format. 
• Multimedia File Conversion Utilities: These utilities provide off-line conversion of 
multimedia files. They can be downloaded from the following web site (check this web 
site periodically for updates to the conversion tools and their capabilities): 
http://www.dialogic.com/support/helpweb/hmp/hmpWin/hmp30/omf/default.htm
The conversion utilities perform CPU-intensive tasks and should only be used when 
sufficient CPU capacity is available and when they won't impact other operations on 
the system. For example, they should not be used while performing audio/video 
operations or when processing audio/video calls, as this can impact the performance 
and operation of the system. 
– mmconvert: Conversion of multimedia data from Audio Video Interleave (AVI) 
Type-2 files with DVSD and DV25 encoded video in PAL 720 x 576 or NTSC 720 
x 480 video format, with PCM linear 16-bit (any rate) mono or stereo audio format, 
to Dialogic proprietary multimedia file format. Conversion includes selectable 
picture format (sub-QCIF, QCIF, CIF), aspect ratio adaptation, bit rate, and 
frames per second (30, 15, 10, 6). 
Note: The mmconvert utility does not support conversion in the reverse direction 
(from Dialogic proprietary multimedia file format to AVI file format). 
– hmp3gp: Conversion of multimedia data from Dialogic proprietary multimedia file 
format to 3rd Generation Partnership Project (3GPP) file format conforming to 
3GP Release 4 file format (.3gp), conforming to 3GPP specifications. The 
generated 3GP file contains two tracks: a video track with H.263 bit-stream video 
data, and an audio track with Global System for Mobile communication Adaptive 
Multi-Rate Narrow Band (GSM-AMR-NB) audio encoded at a bitrate of 12.2 kbps. 
No translating or resizing is done, so the destination frame rate and the picture 
size will be the same as the source. 
Note: The hmp3gp utility does not support conversion in the reverse direction (from 
3GPP to Dialogic proprietary multimedia file format). 
• Play to and record from SIP devices, depending upon capability of device (audio or 
audio/video). Play video only if no audio is required. Play audio only for non-video 
devices. 
• Supports existing Quality of Service (QoS) audio alarms through the Dialogic
®
 IPML 
API for the voice portion of multimedia stream. 
Note: QoS alarms and events are not supported for video streams. 
• Play Dialogic
®
 Voice API audio files in a multimedia session. You can play Dialogic
®
Voice API audio files in a multimedia session as long as tight synchronization with 
video is not required (as when playing with a video menu or status display). In this 
case, the "ipm" device in a multimedia session will listen to the "dxxx" device to which 
the Dialogic
®
 Voice API is playing an audio file. This overrides any audio stream (but 
not video) from the "mm" device in the multimedia session. 
• Licensing of Dialogic
®
 HMP Software multimedia resources. One complete 
multimedia session requires one multimedia resource license and one RTP resource 
license. The multimedia resource provides the video/audio play/record capability, 










