# Awesome Broadcasting

A curated list of amazingly awesome open source resources for broadcasters.

- Awesome Broadcasting
  - Clocks & Studio Screens
  - Codecs
  - Companion Screens
  - Connected TVs
  - Control Systems
  - Distributed Media Processing
  - Documentation
  - DVB & WiFi
  - Animation, Graphics & Video Playout
  - Hybrid Radio
  - LiveIP
  - Media Players
  - Metadata
  - Monitoring & Quality Control
  - Multimedia content processing
  - Network & Storage Testing
  - NMOS
  - Radio Production
  - Software-defined radio
  - Subtitling
  - Video Production
  - Streaming
- Resources
  - Blogs
  - Websites
- Contributing

## Clocks & Studio Screens

- OnAirScreen - Cross-platform “OnAir Lamp” solution targeted for use in professional broadcast environments.
- PiClock - Customisable network based displays of clocks, on-air, mic live and other studio indicators.
- PiClock Advanced Improved version of PiRSClock-Full with changed layout, added timers and network capabilities.
- PiRSClock-Full - Radio Studio Clock with studio indicators for mics, telephones etc.

## Codecs

- FLAC - Free Lossless Audio Coding, used by some broadcasters for audio exchange, storage.
- Lame - A high quality MPEG Audio Layer III (MP3) encoder.
- opencore-amr - Audio codecs extracted from Android Open Source Project, including AAC.
- Opus - A totally open, royalty-free, highly versatile audio codec.
- Turing Codec - An H.265/HEVC open source software encoder designed for fast and efficient video compression.
- TwoLame - An MPEG Audio Layer 2 (MP2) encoder.

## Companion Screens

- dial-discovery-ios - A library for the discovery of devices via the DIAL protocol on the iOS platform.
- dvbcss-synckit-ios - iOS libraries for companion screen applications that are synchronised frame-accurately to a TV.
- dvbcss-synctiming - A system for measuring how accurately a TV or companion are synchronised.
- pydvbcss - Implementation of the DVB Companion Screens and Streams protocols for synchronised media playback.

## Connected TVs

- Cross-Platform Authentication - CPA offers an open standard for associating any media device with an online identity.
- HbbPlayer - An HbbTV and W3C specifications compliant application that can playback media from a URL.
- TAL - The TV Application Layer (TAL) is an open source library for building applications for Connected TV devices.

## Control Systems

- BUG - Broadcast Universal Gateway - Control a wide range of broadcast and network equipment from your browser.
- Lawo EmberPlus - Ember Plus - open protocol for interfacing to / from broadcast control systems.
- MIDIMonster - Lightweight adapter tool for common show control protocols.

## Distributed Media Processing

- StormCV - Apache Storm + OpenCV = large scale distributed image and video analysis.

## Documentation

- Kronekeeper - A web based application for recording and managing Krone frame records.

## DVB & WiFi

- DTT 2 IP - Broadcast to IP conversion for Wifi indoor coverage.
- DVB Inspector - An open-source DVB analyzer.
- DVBlast - A simple and powerful MPEG-2/TS demux and streaming application.
- dvbshout - Tool to send DVB audio to a shoutcast server or a RTP stream.
- Opencaster - A free and open source MPEG2 transport stream data generator and packet manipulator.
- Project X - DVB demux tool.
- ts2mpa - Simple tool to extract MPEG Audio from a MPEG Transport Stream (TS).
- TSDuck - Extensible toolkit for MPEG/DVB transport streams testing, monitoring, integration, debugging, and more.
- WiFiBroadcast - Analog-like transmission of live video data.

## Animation, Graphics & Video Playout

- Aurena - A network distributed media playback system.
- Blender - 3D creation suite supporting 3D modelling, animation, motion tracking, video editing, and more.
- CasparCG - A professional graphics and video play-out software, proven in 24/7 broadcasts since 2006.
- ffplayout - Rust and FFmpeg based playout from folder or playlists.
- Macadam - Blackmagic Node.js bindings that support HTML/CSS (via Electron) and SVG (via Sevruga) graphics.
- Nebula - Media asset management and broadcast automation system.
- NodeCG - Broadcast graphics rendered in a browser using Node.js.
- Open Playout Automation - A CasparCG-based MCR play-out system.
- ossia - A free and open-source intermedia sequencer.
- Sofie - TV Automation - MOS-driven automation system for news casts, with many libraries for e.g. device control.
- Studio TV Player - Simple TV studio player with SDI, NDI and MPEG TS outputs.

## Hybrid Radio

- RadioDNS for Node.js - Perform RadioDNS resolutions and service lookups in node.js.
- RadioDNS Manager - Platform to manage Hybrid Radio services, e.g. RadioVIS, RadioEPG and Service Following.
- RadioTag.js - RadioTag client library in JavaScript.
- RadioVIS Demo - RadioVIS client application in Python.
- RadioVIS Html Player - RadioVIS Player using WebSocket.
- RadioVIS Stomp Server - RadioVIS STOMP server written in node.js.

## LiveIP

Audio/Video over IP & Streaming

- butt - broadcast using this tool (butt) is an easy to use, multi OS streaming tool. It supports SHOUTcast and Icecast.
- Cool Mic - Android audio livestreaming Icecast source client app.
- DarkIce - Live audio streamer that records and encodes from an audio interface and sends to a streaming server.
- EBU LIST - Live IP Software Toolkit to assist EBU members in the implementation of IP based facilities.
- Icecast - Streaming media (audio/video) server which supports Ogg (Vorbis and Theora), Opus, WebM and MP3.
- IRIS Broadcast - A project founded in Sweden to publish Open Source software for professional radio broadcasts.
- Kamailio - Open SIP server, commonly used for Audio contribution over IP using SIP (EBU ACIP).
- See the NMOS list for the AMWA Networked Media Open Specifications and open source implementations and tools.
- OpenOB - Open Outside Broadcast project for radio contribution links and studio-transmitter links based on Opus.
- PJSIP - Open Source multimedia library implementing SIP, SDP, RTP, STUN, TURN, and ICE.
- trx - A simple toolset for broadcasting live audio from Linux.

## Media Players

- Dash.js - A reference client implementation for the playback of MPEG DASH via Javascript and compliant browsers.
- GPAC - Multimedia player, packager and tools.
- IDJC - A GTK+ Shoutcast/Icecast client with two main media players.
- Kodi - A software media player and entertainment hub for digital media.
- Media4DPlayer - HTML5 player focused on accessibility.
- MPD - A flexible, powerful, server-side application for playing music.
- mpg123 - A fast console MPEG Audio Player and decoder library.
- Mixxx - A free, open source DJ software.
- Peaks.js - Browser-based audio waveform visualisation.
- rx-player - HTML5/Javascript video player that supports MPEG-DASH and SmoothStreaming.
- VLC - Simple, fast and powerful media player.

## Metadata

- BMXlib - Library and utilities to read and write broadcasting media files. Primarily supports the MXF file format.
- EBUCore - The Github for maintenance of the EBUCore schema.
- jebu-core - Java port of EBU Tech 3293 EBU Core metadata, including the Audio Definition Model.
- libadm - Audio Definition Model (ITU-R BS.2076) handling C++11 library.
- libklvanc - C library for ancillary data extraction from SDI and SMPTE ST 2110-40 (CEA-708, AFD, SCTE-104, etc.).
- MAJ API - Pure Java library for reading and writing MXF and AAF files.
- SDPoker - CLI tool and library for testing SMPTE ST2110 SDP files.
- TV-Anytime - The TV-Anytime schema github maintenance page.

## Monitoring & Quality Control

- BeaqleJS - A framework to create browser based listening tests for subjective audio quality assessment.
- Jack Meter - Text console based DPM (Digital Peak Meter) for JACK.
- JACK Meterbridge - A collection of graphical Audio meters for JACK (ballistics may be incorrect).
- Jmeters - A collection of graphical audio meters for JACK, including VU, PPM and EBU R 128 Loudness meters.
- LTC-tools - A collection of tools to handle Linear Timecode (LTC) and convert to MIDI Timecode (MTC).
- MediaConch - Implementation checker, policy checker, & reporter for Matroska, FFV1, & PCM.
- MediaInfo - A convenient unified display of the most relevant technical and tag data for video and audio files.
- MXF Inspect - A Windows tool to display the internal structure of an MXF (Material eXchange Format) file.
- Pi Audio Monitor - Audio Monitoring for Raspberry Pi, supports S/PDIF, AES3, AES67, Livewire and Ravenna.
- Photon - Implementation of the SMPTE Interoperable Master Format (IMF) standard.
- QCTools - Quality Control tools for video preservation to analyse digitized video files.
- Rotter - Recording of Transmissions / Audio Logger for JACK.
- silan - Audiofile silence analyzer.
- SilentJack - Dead-air / Silence detector for JACK.
- Sonic Visualiser - An application for viewing and analysing the contents of music audio files.
- VMAF - Perceptual video quality assessment based on multi-method fusion.
- Wisual - A web service for Visual Quality Assessment, which supports PSNR, SSIM, VQM, etc.

## Multimedia content processing

- AvTranscoder - FFmpeg/LibAV-based high-level API to re-wrap or transcode media, with bindings for Java and Python.
- Beam Coder - Node.js native bindings to FFmpeg, with support for asynchronous processing via promises and streams.
- Bento4 - Full-featured MP4 format and MPEG DASH C++ class library and tools.
- Brave - Basic Real-time AV Editor - lets you preview, mix, and route live audio and video streams on the cloud.
- Codem-isoboxer A small browser-based MPEG-4 (ISOBMFF) parser.
- Dynamorse - IT swiss army knife - a Node-RED media pipeline builder, adding professional media processing nodes.
- EBU ADM Renderer - Reference implementation of the EBU ADM Renderer (EBU Tech 3388)
- FFmbc - FFmpeg customized for broadcast and professional usage.
- FFmpeg - A cross-platform solution to record, convert and stream audio and video. Supports SMPTE ST 2110.
- Flowblade - A multitrack non-linear video editor.
- GStreamer - A library for constructing graphs of media-handling components.
- Kelvinadon - Node.JS pure Javascript module for streaming MXF files to and from JSON.
- KFR - Fast, modern C++ DSP framework, DFT/FFT, Audio resampling, FIR/IIR, Biquad, EBU R 128.
- L-SMASH - A rigidly spec-compliant ISOBMFF library, which has full DASH muxing support.
- LibAV - Open source audio and video processing tools.
- libbw64 – Header-only Broadcast Wave 64 (ITU-R BS.2088) C++11 library.
- libear - A C++11 library to render ADM content according to Recommendation ITU-R BS.2127.
- Libebur128 - A library that implements the EBU R 128 standard for loudness normalisation.
- Loudness Validator - A set of applications to analyse, visualise and correct the loudness.
- MP4Box.js - JavaScript library to process MP4 files in the browser (and in NodeJS).
- MXFLib - A multi-platform C++ library for reading and writing MXF files.
- OBS-Studio - Software for live streaming and screen recording.
- Open Broadcast Encoder - Broadcast encoder built from Open Source components.
- rgain - Tools and Python library to read, write and calculate Replay Gain.
- rtmp - Server implementation of Adobe’s RTMP 1.0 protocol in Go.
- Snowmix - Live Video Mixer.
- SoX - The Swiss Army knife of sound processing programs.
- SVT Encore - Selfhosted video transcoding plattform, built around FFmpeg.
- TuttleOFX - An open source image processing framework based on OpenFX plugin standard.
- UPipe - Primarily designed to be the core of a multimedia player, transcoder or streamer.
- VideoContext - Experimental HTML5/WebGL library for creating interactive and responsive web videos.
- Voctomix - Customizable conference recording/mixing/streaming software based on Python and GStreamer.

## Network & Storage Testing

- BBC Media Storage Meter - An application for the testing of network attached (professional media) storage.
- Fio - Flexible I/O Tester
- iPerf3 - The TCP, UDP and SCTP network bandwidth measurement tool.
- SMPTE 2110-20 Analyzer - Analyzer to inspect network packets generated in accordance with SMPTE ST 2110.

## NMOS

The Networked Media Open Specifications are themselves open source.

- AMWA NMOS Testing Tool - Automated test suites for the AMWA NMOS family of specifications, as used in the JT-NM Tested programme
- BBC NMOS Joint Reference Implementation - A Vagrant provisioning to build 4 virtual machines, an IS-04/IS-05 Node, IS-04 Registry, BCP-003-02 Authorisation Server, and the NMOS Testing Tool.
- DELTACAST IP Virtual Card NMOS samples - A demonstration of the integration of several NMOS standards with the DELTACAST IP Virtual Card through nmos-cpp.
- Easy-NMOS - A starter kit that allows the user to launch a simple NMOS setup with minimal installation steps, composed of three Docker containers: an NMOS Registry, a virtual NMOS Node, and the AMWA NMOS Testing Tool.
- nmos-cpp - An implementation of the AMWA Networked Media Open Specifications in C++, including an NMOS Registry and a toolkit and example of building an NMOS Node.
- nmos-js - A simple browser-based NMOS Client/Controller with an IS-04 Registry browser and IS-05 Connection Management.
- NVIDIA NMOS Docker - Docker container with Registry and Controller, IS-04/05/08/07/09, BCP-003-01

## Radio Production

- Airtime - Radio management application for remote broadcast automation (via web-based schedule).
- Ardour - A digital audio workstation.
- Audacity - Cross-platform software for recording and editing sounds.
- AzuraCast - A self-hosted web radio management suite.
- LibreTime - Radio broadcast & automation platform (fork of Airtime).
- Liquidsoap - A Swiss army knife for multimedia streaming (documentation).
- OpenBroadcaster Open Source LPFM IPTV Broadcast Automation. Server and Player code here.
- RAAR - A ruby application to manage and browse an audio archive.
- Rivendell - Complete radio broadcast automation solution, translated to many languages and used worldwide.

## Software-defined radio

- GNU Radio - A software development toolkit that provides signal processing blocks to implement software radios.
- Gqrx SDR - An open source software defined radio receiver (SDR).
- ODR-mmbTools - Fork of CRC-mmbTools. Adds live, DAB+, associated data, distributed infrastructure, SFN.
- rtl-sdr - Turns a Realtek RTL2832 based DVB dongle into a SDR receiver.
- welle.io - An open source DAB and DAB+ software defined radio (SDR) with support for airspy and rtlsdr.

## Subtitling

- CCExtractor - A tool that analyzes video files and produces stand-alone subtitle files.
- EBU-TT-D Subtitling within dash.js - dash.js fork with EBU-TT-D subtitles in HTML/CSS overlay. Later added to dash.js.
- EBU-TT-D W3C XML Schema - Informative EBU-TT-D XML Schema to support the implementation of EBU Tech 3380.
- EBU-TT Live Interoperability Toolkit - Components for generating, testing and distributing EBU-TT Live subtitles.
- GStreamer TTML subtitling package - A means for GStreamer pipelines to parse and render EBU-TT-D (TTML) subtitles.
- imscJS - JavaScript library for rendering IMSC1 Text and Image Profile documents to HTML5.
- IRT EBU-TT-D Application Samples - EBU-TT-D sample files, PNG images and mp4 videos as rendering references.
- Subtitle Edit - An editor for subtitles.
- Subtitling Conversion Framework (SCF) - Modules for converting subtitle formats, incl. EBU STL and EBU-TT files.
- Timed Text Toolkit (ttt) - Tools that support/use the W3C Timed Text Markup Language (TTML).

## Video Production

- AutoMix - Web-based control surface for ATEM vision mixers with automated camera switching, designed for visualised radio.
- MOS-connection - A JavaScript library for connection and MOS messaging either as MOS device or NRCS.
- Open Lighting Architecture (OLA) - Travel adaptor for the lighting industry, for interconnecting DMX-512, IP and USB.
- Q Light Controller+ (QLC+) - Cross-platform control of DMX or analogue lighting systems (heads, dimmers, etc.).
- QPrompt Teleprompter App - Convergent teleprompter software that works with studio teleprompters, tablet teleprompters, webcams, and phones.
- TallyArbiter - Cross-platform Tally interfacer & tally lights for any camera via phones or low-cost hardware.

## Streaming

- Owncast - Selfhosted video streaming plattform (https://owncast.online/)

# Resources

Various resources, such as books, websites and articles, for improving your skills and knowledge.

## Blogs

- BBC News Labs - Open Source projects from BBC News Labs.
- BBC R&D - BBC Research and Development. Checkout the weekly notes.
- 3D CineCast - A curation about new media technologies.
- Canal+ - CANAL+ Open Source Community.
- IRT Lab - IRT blog posting developments and demos for all digital audiovisual media technology.
- The Netflix Tech Blog - A Netflix blog focused on technology and technology issues.
- Youtube Engineering and Developers Blog - What’s happening with engineering and developers at YouTube.

# Contributing

Please see CONTRIBUTING for details.