Media Dispatch Protocol (MDP) ref impl / News: Recent posts

Release 1.0.0 of the C++/Qt implementation of the reference MDP agent. This uses Qt for cross platform support. Like the Perl implementation, this complies to SMPTE 2032 and the two implementations interoperate.

The agent has been tested on SuSE, Ubuntu, Fedora and Windows Vista.

At the current time the release assumes that installation will be from source. However as part of the installation procedure an RPM or Windows Installer is created, and these will be made available soon.... read more

We'll soon be adding a C++ implementation of the MDP agent. This uses Qt for cross platform support and both Linux and Win32 versions will be available. It will also include various features (such as an embedded HTTP server) to ease installation.

This version provides support for various changes made during the ongoing standardization process, and also supports SFTP transfer.

The Media Disaptch Protocol has now moved into the standardization phase! It has been submitted to the S22 group of the Society for Motion Picture and Television Engineers.

The software has also been updated to beta_29 - this improves the web interface and UTF8 support.

Beta_27 of the Perl agent is now available. There are now many changes including:
- transactions and transfers secured with HTTPS
- client certificate handling
- database looks after organisation and project details
- pause and resume commands
- auto-detection of stalled link with auto-retry
- SOAP and web interfaces also updated to support new features

There's also an open office presentation on the agent outlining how to set it up.... read more

MDP perl agent beta_18 is now available. In addition to the existing local/SOAP client API and command line tools, it includes a simple CGI client API and a set of simple web pages assumes Javascript-capable browser). It also provides more documentation, better support for transfer of large files and fixes a few minor bugs.

The Media Dispatch Protocol was launched at the International Broadcasting Convention in Amsterdam. See http://www.pro-mpeg.org for more details.

The first release of the perl open-source reference MDP agent has now been released.

Some information:

* It is written in Perl, with the usual Artistic/GPL licence.
* It implements a useful subset of the 1.0rc1 MDP/CGI spec
* It supports target pull deliveries using HTTP GET - the initiator offers three variants (to demonstrate negotiation)
It uses the callback approach (polling approach not supported)
* All the MDP/CGI commands are implemented (apart from cmd_sendcapabilities, as the capabilities dialogue uses qry_requestcapabilities and rpl_capabilities)
* It provides direct Perl and SOAP client APIs with a CGI API to come
* It currently comes with a command-line based user interface.
* An optional checksum hash for transfers is provided
* Transfers currently happen in parallel
* Scheduled transfer, limiting the number of simulataneous transfers, CGI user api, web front end, documentation etc. are to come in later versions
* There are a few minor changes from 1.0rc1 spec. Many of the changes are to do with the reason codes.
* It has so far been tested on SuSE 9.2 and 9.3, but should be OK on most platforms, although it will likely require a little modification to work natively on MS Windows (rather than under cygwin).
* It requires: Perl 5.8.x with a few extra modules, plus Apache HTTPD 1/2, Xerces 2.5.0, MySQL
* Installation is quite simple and flexible using an interactive script. Configuration files allow later changes to be easily made

The first release of a Perl reference implemenation for a Media Dispatch agent will be released in the next few days - please check again soon.

Relase candidate 1 of the MDP specfication v1.0 has been published on the Pro-MPEG site. This is a "deep freeze" version of the specification to allow development of stable implementations for interoperability testing. For more details see http://www.pro-mpeg.org/publicdocs/mdg.html. The v1.0rc1 schema is also available here on Sourceforge.