Razunais the open source alternative to digital asset management (DAM) Systems. You can save up to 90% compared to any proprietary system. Razuna is the first system which integrates the most common used DAM features in one single and simple to use application. API

In addition to Razuna the site Open Source Digital Asset Management (see their site for more comments) also lists: - Cynapse - DSpace - EnterMedia - Fedora Commons - FocusOPEN - Notre DAM - Nuxeo DAM - Phraseanet - ResourceSpace CasparCG: Use QuickTime and Flash for all your broadcast, show, event and digital signage needs! Plays and composites simultaneous layers of Flash and QuickTime video in real-time, without caching!

At Kaltura, we believe that advanced video functionality should be available to any publisher for free. Our open source approach accelerates adoption and spurs innovation. Using Kaltura’s client/server technologies, publishers can rapidly and cost-effectively enable a multitude of integrated solutions for a wide variety of use cases and verticals. Unlike proprietary, closed source, solutions, Kaltura’s platform is flexible, extensible, and free. For publishers, this means that they pay less and hit the market sooner. For developers, it means that they get a stable base to build upon, allowing them to spend their time and resources on true innovation.

EditShare is pleased to announce that Lightworks Academy® and Emmy® award-winning editing software is to be made available as Open Source. Used by editors such as Chris Gill and multi Oscar-winning Thelma Schoonmaker, Lightworks offers intuitive controls, advanced real time effects, 2K native support with DPX or RED, and multi-camera editing features that remain unmatched.

VideoLAN Movie Creator is a non-linear editing software for video creation based on libVLC and running on Windows, Linux and Mac OS X! It is a free software distributed under the terms of the GPL v2.

Kdenlive is an intuitive and powerful multi-track video editor, including most recent video technologies. Our software is completely free, in all sences of the expression, as defined by the GNU foundation. Using Kdenlive is investing in a community driven project, which aims to establish relationships between people in order to built the best video tools.

Cinelerra is the most advanced non-linear video editor and compositor for Linux. It is developed by Adam Williams (formerly known as Jack Crossfire) at Heroine Virtual Ltd..

Cinefx is a professional grade media player, based on the jahplayer, that is capable of playing uncompressed video and image sequences at resolutions as high as 2K and 4K in real-time and features a robust set of image analysis and asset management tools. Cinefx uses a completely hardware accelerated pipeline, allowing you to maintain the aspect ratio of the source media or change it on the fly, and is capable of both disk based playback and ram based playback.

I’m started from tangolerra project made by Franco Iacomella and after an hard job with svg I made my personal mochup of Cinelerra called Cutiehd. But when I started to work on the mochup of Cinelerra 2.1cv I tryed to enable again the support of font antialias (xft), write a draft of Utf-8 support, rewrite some parts of titler code and adapt the svg plugin from the Cinelerrasv by “Simeon Völkel”. I know that these features can generate instability, so I decided to make a new package with it’s name and icon called Cinecutie, that can be consider more as “mochup” than a real “fork”

Celtx helps you produce all types of media - film, video, documentary, theatre, machinima, comics, advertising, video games, music video, radio, podcasts, videocasts, and however else you choose to tell your story. You can use Celtx for the entire production process - write scripts, storyboard scenes and sequences, sketch setups, develop characters, breakdown & tag elements, schedule productions, and prepare and circulate informative reports for cast and crew.

Rivendell is a complete radio broadcast automation solution, with facilities for the acquisition, management, scheduling and playout of audio content. It has all of the features one would expect in a modern, fully-fledged radio automation system, including support for both PCM and MPEG audio encoding, full voicetracking and log customization as well as support for a wide variety of third party software and hardware.

ARAS is an open source radio automation system. It reads mp3, wav, ogg, mod, xm and other media formats It can play files or media streams over internet, enabling the performing of automatic audio links. Highly configurable Log file capability Time signal capability Interval signal capability It works with single file blocks, playlist blocks, blocks of random files, blocks of one random file and interleaved blocks. Fade out capability and flexible scheduling.

Soma suite Soma is a suite of programs that let you play and schedule audio files from the Web.

Campcaster is an free, open source radio suite enabling live broadcast and scheduling for radio stations, whether their transmission is analogue, digital or online. Campcaster runs on Linux.

Realtime Video Effects renders realtime effects on a video played by MPlayer (with bmovl), such as moving/fading text, statistics from a live event or whatever other ideas are integrated. Creating new effects is easy, even without extensive C++ skills.

MLT is an open source multimedia framework, designed and developed for television broadcasting. It provides a toolkit for broadcasters, video editors, media players, transcoders, web streamers and many more types of applications. The functionality of the system is provided via an assortment of ready to use tools, XML authoring components, and an extensible plug-in based API.

TeleKast is an open source teleprompter. Scripts are created and used to create content for the teleprompter. The scripts can also be used for doing feature stories and interviews. TeleKast is your means for creative communication.

HockeyBoard is a program for displaying and operating an on-screen scoreboard for television broadcast of hockey games.

LADSPA plugins. CSA means : Contrôle Signal Audio. A group of LADSPA Audio plugin for FM broadcast and more. Emphazised Limiter, Cellular Leveler, Simple right/left amplifier. Blind Peak Meter.

tvpvrd - (TV Personal Video Recorder Daemon). A Unix server/daemon to make scheduled recordings of TV broadcasts using one or multiple Video capture cards with optional automatic transcoding (using ffmpeg)

Mutelesser is an audio silence detection tool, for broadcast radio stations. Mutelesser detects lack of audio for a certain amount of time, and triggers actions that inform technical staff or start a backup play list, until audio source is restored.

DSI Sound Station is broadcast software for everything related to audio and station-management. For all-size broadcast radio- and TV-stations who want: Hard-disk audio recording, on-line newsroom, disc/media cataloguer, salesman utils (like contracts, invoices, etc).

Documatic is a free, open-source, participatory, android-based, mobile shooting assistant, and pre-editor. The basic principles of Documatic, and Semi-Automatic Filmmaking, in general, are that, instead of gathering tons of footage with a video camera, and then later meticulously sorting and organizing in a separate editing stage, you can use an Android device to roughly annotate and organize the video clips as they are being recorded. Then later, the system combines these annotations with the raw footage and intelligently organizes and “pre-edits” the footage into an Adobe Premiere Sequence.

Not really open source or open API but interesting:

NPR API Ingest: The Ingest System currently accepts stories in two XML data formats. We accept a limited subset of NPRML—our own home-grown way of expressing story content in XML. We also accept RSS with MediaRSS and NPRML extensions for audio and images and other resources.