Technologies
OpenCaster 2.4: the free digital tv software

Logo OpencasterOpenCaster is a free and open source MPEG2 transport stream data generator and packet manipulator.

New manual 1.2 is available here: manual

New 2.4 features:

  • Basic input remultiplexing
  • BISS support

New 2.2 features:

  • AC3 encapsulating and multiplexing support for 5.1 sound
  • enhanced DVB-SSU
  • old but ever green teletext over DVB

New 2.0 features:

What you can do with OpenCaster, the straight list:

  • create PSI/SI tables
  • play out seamlessly every kind of file (data, audio & video when properly encoded)
  • manipulate real time TS stored on hard disk.
  • transform filesystems in DSMCC carousels (MHP, MHEG, OTA)
  • generate many other data streams carried on a TS; almost everything but audio and video, that's because OpenCaster IS NOT AN MPEG AUDIO/VIDEO ENCODER.
  • multiplex constant bit rate transport (CBR) streams
  • restamp PCR, PTS & DTS
  • output to DVB-ASI with PCI and USB hardware boards (today in house Computer Modules, Dektec, Bluetop).
  • output to DVB-S, DVB-T and DVB-C with Dektec DTA110T hardware boards.

Audio and video streams are expected as input files in a transport stream TS format or as elementary streams ES and then can be transformed to TS format at any bitrate with local PCR stamping.

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Jet: the heart of the next set top box

Jet is our proposal for the core of the digital living room.

If you want to fully experience this digital era, you'll need, inside the media center, a pumping engine capable to mix and mash all kind of new digital media, broadband networks, interactive services.

Jet is a middleware for Java language that can do it, a modular and lightweight approach to the software soul of the next set top box. Now you can download it!

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Opencaster demo roll..

Big Buck Bunny DVDAs we have been asked by many to provide some sample stream featuring all the bell and whistles of an OpenCaster based environment, here we are distributing such a test set.

OpenCasterDemo is a transport stream for digital television generated by Avalpa's OpenCaster, it features, apart the usuale SI info, a MPTS with two audio/video services and some value added metadata:

  • one service with a MHP application,
  • second service with 4 teletext demo pages and a MHEG application.
  • Electronic Program Guide,
  • Logical Channel Numbering
  • time information
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Phoneme GPL java vm running on SH4 processor

Logo STJet is one of the cornerstone of Avalpa value proposition; it's a middleware for interactive digital set top box.

It's based on phoneme, the java virtual machine that Sun Microsystems released in december 2006 as GPL licensed software. Jet is actually using the PowerPc porting of the phoneme vm.

Anyway, we recently started to evaluate, both technically and economically, the porting of Jet to a high definition System on Chip (SOC) like the StMicroelectronic STi710x. (thankx to them for a great linux support and SDK)

As a successful first proof of concept, as of today 29.7.2009, we are releasing the missing files to have latest phoneme svn compile and execute succesfully on the SH4 cpu.

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