Subject: Announcement: New audio tool for Windows 95 / Windows NT

From: Arlie Davis <[email-masked]>
Date: Tue, 5 Mar 1996 17:42:36 -0500

Media
Pre-release 0.10 for
Windows NT and Windows 95
by Arlie Davis

This is the first pre-release of my generalized stream application, called Media.  The primary purpose of this application is to send and receive media (audio and video) streams over packet- and cell-based networks.  

Media is implemented using Microsoft Foundation Classes (MFC) and the Win32 API.

The application was developed using Microsoft's 32-bit WinSock 1.1 TCP/IP stack.  The definitions of some constants relating the TCP/IP multicast under WinSock 1.1 vary from vendor to vendor.  You will need to use Microsoft's stack or a stack which adheres to their standard.

Basically, at this point, the only thing Media is good for is listening to multicast streams of GSM, DVI4/ADPCM, and PCM streams.  The framework for many more codecs and abilities is there, but is not yet ready for prime time.

Use of Media should be self-explanatory.  Start the application, and select Session, New to create a new multicast listener.  You will be prompted for the multicast group and port number.  The multicast session display shows the total packet and byte counts received and a list of all of the unique stream sources for that group.  Double-click on the source address for more information about that source. If you have a sound card, and the source is GSM, DVI4/ADPCM, or PCM, you should hear audio output.

If you have comments or questions about this software, feel free to mail me at [email-masked].  Don't bother complaining; this is pre-alpha software.  I will continue to develop this software for some time to come, so if you are disappointed by it in its current form, just wait a week or two.

Arlie Davis
[email-masked]
You can download Media at these locations:

ftp://ftp.thepoint.net/Archive/Internet/Interactive%20media/Media/Media.zip
http://archive.thepoint.net/Internet/Interactive%20media/Media/Media.zip

Features

Runs on Windows 95 and Windows NT.  Win32 is the de facto standard for modern multimedia applications.
Media is built on a generalized framework.  It is not a single-protocol hack.
Supports multicast.

Bugs

Receive-only, right now
No video support (at least not releasable yet)
Not integrated with SD application (yet)
Even though the framework supports Speak Freely and CU See Me, the codecs aren't there yet.

Audio formats supported

GSM.  Based on the GSM library version 1.07.
ADPCM / DVI4 at 8K and 16K samples/second.
PCM.  Untested.

Encapsulations supported

RTP version 0 (the pseudo-standard that VAT uses, version 3 and prior)
RTP version 1
RTP version 2
Speak Freely
CU See Me (simplex; no client-client or client-reflector negotiation protocol support)

Networks supported

TCP/IP, unicast and multicast

Planned features

More audio formats
Video
Transmission of video and audio
Support for ATM, if possible
Integration of my SD tool
Support for recording and playback of media streams
Technical support