Video Breakthroughs
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Video Breakthroughs
Monitoring innovations in post-production, head-end, streaming, OTT, second-screen, UHDTV, multiscreen strategies & tools
Curated by Nicolas Weil
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Flash-based Audio and Video Communication in the Cloud

Internet telephony and multimedia communication protocols have matured over the last fifteen years. Recently, the web is evolving as a popular platform for everything we do on the Internet including email, text chat, voice calls, discussions, enterprise apps and multi-party collaboration. Unfortunately, there is a disconnect between web and traditional Internet telephony protocols as they have ignored the constraints and requirements of each other.


Consequently, the Flash Player is being used as a web browser plugin by many developers for web-based voice and video calls. We describe the challenges of video communication using a web  browser, present a simple API using a Flash Player application, show how it supports wide range of web communication scenarios in the cloud, and describe how it can interoperate with Session Initiation Protocol (SIP)-based systems. We describe both the advantages and challenges of Flash Player based communication applications. The presented API could guide future work on communication-related web protocol extensions.


Via Olivier NOEL
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Mozilla demos MediaStream Processing, audio mixing in Firefox

Mozilla demos MediaStream Processing, audio mixing in Firefox | Video Breakthroughs | Scoop.it

Mozilla is drafting a proposal for a new Web standard called MediaStream Processing that introduces JavaScript APIs for manipulating audio and video streams in real time. The specification is still at an early stage of development, but Mozilla has already started working on an implementation for testing purposes.


Mozilla's Robert O'Callahan, the author of the MediaStream Processing API proposal draft, released experimental Firefox builds that include MediaStream Processing support. He has also published a set of demos (note: you need to run the experimental build to see the demos) that illustrate some of the functionality defined by the specification.


The demos show how the APIs can be used to perform tasks like rendering a visualization of a video's audio track in a Canvas element while the video is playing. It also shows how the APIs can be used for mixing tasks, like implementing a cross-fade between two audio streams, dynamically adjusting the volume of a video, and programmatically generating audio streams.

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Google's WebRTC Will Bring Real-Time Communications To The Browser

Google's WebRTC Will Bring Real-Time Communications To The Browser | Video Breakthroughs | Scoop.it

The WebRTc project by Google aims to enable web browsers with RTC capabilities over JavaScript APIs. For me this may just be the incentive to pick up JavaScript again. For FMS this means even more pressure outside its core function of streaming video.

Some key points and features about WebRTC:
- NAT and firewall traversal
- choice of protocols such as SIP, XMPP and others
- VP8 video
- iSAC, G.711, G.722 and iLBC audio codecs
- acoustic echo cancellation (AEC), automatic gain control (AGC), noise reduction, noise suppression and hardware access
- license allows use of other codecs
- Google Talk will move to WebRTC
- royalty free use of all included codecs

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OpenClove Video Exchange (OVX) Adds WebRTC Support to Embed Multi-Party Video Interaction in Web Applications [PR]

OpenClove Video Exchange (OVX) Adds WebRTC Support to Embed Multi-Party Video Interaction in Web Applications [PR] | Video Breakthroughs | Scoop.it

OpenClove, an innovator in providing cloud mobile and video solutions, announces the support of WebRTC on its OpenClove Video Exchange (OVX). The development enables any application to embed multi-party video in web services and mobile apps, across any device or network. This capability brings together the power of OVX, a cloud based Media Resource Function (MRF) providing real-time audio and video mixing and processing, with the benefits of WebRTC, to deliver communications natively in web pages. Web services providers and application developers adopting WebRTC can now deliver a range of live video sharing and multi-party use cases for consumers and enterprise users.

 

OVX supports multiple audio and video codecs in a single video session, such as VP8 for WebRTC and H.264 for IMS, to assure seamless delivery of real-time communications across heterogeneous clients."

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Impressive: Video and voice calls in your browser without a plugin in sight

Impressive: Video and voice calls in your browser without a plugin in sight | Video Breakthroughs | Scoop.it

Until now, video calling from your computer has required dedicated apps such as Skype or browser plugins like Flash that power the likes of Vox.io. However, the similarly-named Voxeo Labs has been cooking up something impressive; plugin-free video and voice calls in a browser.


Using its own Phono SDK, Voxeo Labs has demoed a way of making calls using the WebRTC technology included in the Canary build of Google’s Chrome browser. Backed by Google, Mozilla and Opera, WebRTC is an open source project that allows developers to create real-time communications apps for the Web via Javascript APIs and HTML5.

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Dialogic and VoipSwitch Create Open Videoconferencing, iOS App

Dialogic and VoipSwitch Create Open Videoconferencing, iOS App | Video Breakthroughs | Scoop.it

Communications company Dialogic has partnered with VoipSwitch, a subsidiary of Voiceserve, to create an open-standards mobile videoconferencing system.

 

The video solution incorporates VoipSwitch's Vippie SIP-based smartphone voice calling app with the Dialogic BorderNet 500 Gateway, which lets clients make Internet calls from anywhere.

 

The experiment, however, isn't meant to be a final product, but a jumping off point for other developers who appreciate the open standards approach.

 

Dialogic is now working on Flash-based plug-ins for the system, says Mushkin, which will greatly expand its features.

 

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Beyond HTML5 : Web Real-Time Communication @ Ericsson Labs

Beyond HTML5 :  Web Real-Time Communication @ Ericsson Labs | Video Breakthroughs | Scoop.it
Get early access to experimental browser features for real-time voice and video communication.
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