iMedia Application Lab: Software

Released Software

The following software has been developed in the context of the Robust Streaming Environment project. As the iMedia AL proudly supports open source, all the software is released under the GPL license.

Documentation is still under development, please contact us for more details.

Video Streaming:

The Robust Streaming Engine (previous version), to stream RTP flows over the internet
The RoSE RTSP server (previous version)
The media streams analyser, to gather statistics and various information from a generic audio/video stream
The real-time encoder for streaming live video
The RoSE ReMux component
The RoSE PostMux component

Scheduling:

Reservation-based CPU scheduler for Linux: it implements the Constant Bandwidth Server (CBS) algorithm in 2.6 linux kernels. The scheduler is distributed in two flavours: a modular scheduler (in the form of a Linux kernel module, that can be inserted in a linux kernel patched with the generic scheduler - gensched - patch) and an experimental non-modular scheduler implemented as a scheduling class.

Scheduling module for various versions of the Linux kernel (tested on 2.6.31-rt11 - x86-64 only - and 2.6.21-rt12). The module needs a gensched patch to be applied to the kernel. A version of the gensched patch for the 2.6.31-rt11 real-time kernel is available here (warning! only tested on x86-64). Here is a version of the gensched patch for 2.6.21-rt12
Patches implementing a CBS scheduling class in recent Linux kernels. The patches are against Ingo Molnar's sched/devel branch, around July 2008, but can be applied to linux kernel 2.6.26.8 without big problems. Some userspace test programs that can be used to check the correct behaviour of the CBS patch are also available.

To be released (in the work queue):

Network analyser for RTP streams (the first version will only support multicast traffic)
RTP muxer for encoded audio/video streams

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