Author Archives: Melih O.

Mantis Checklist – How to get started with Mantis

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We just launched Mantis yesterday, and saw a rush of activity as partners hopped onto the WebRTC cloud. The new things people will be able to build – a real-time, online dungeons and dragons web app, seminar applications, education applications, and more – are now going to see a whole new level of quality and experience. We’re really excited to be the face-to-face video platform that helps make this happen. But to make it happen more quickly, we’ve decided to write a quick Mantis checklist. To make your Mantis application work, you will need to:

  • Make sure that you are using the OpenTok on WebRTC JS library. You can find the library here, and find the reference documentation here. If you are using the v1.1 JS library, you will need to update your application to the v2.0 library.
  • When you generate a session, make sure that the p2p.preference flag is set to disabled. If you’re generating your sessions from the Developer Dashboard, then you will need to download one of our server-side SDKs and generate sessions yourself.
  • If you haven’t already asked to participate in the Mantis beta, please contact us at mantis@tokbox.com. Then make sure that you are using the correct API key for the Mantis beta. If you are not sure which API key you sent us, then please email us, and we will let you know. Mantis requires that your API key be enabled to access the infrastructure.

It really is that quick, and if you’re finding that you need some more help, then let us know. To make sure that your question gets answered as quickly as possible, please send an email to support@tokbox.com using the following template:

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New changes for WebRTC in Chrome 26

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A new version of Chrome is out, and with it changes in the WebRTC stack. We dug through the commit logs for Chrome 26, and found the following list of WebRTC bug fixes, enhancements, and updates that we thought were relevant to the OpenTok community:

Highlights

  • A lot of audio bugs in WebRTC were fixed dealing with crashes and non-standard audio bitrates
  • Chrome on Android can now be WebRTC-enabled by enabling a flag
  • Improvements to the connectivity stack in WebRTC
  • Ability to set media constraints for audio

Full list

  • Avoids crash in WebRTC audio clients for unsupported capture sample rates.
  • Avoids crash in WebRTC audio clients for 96kHz render rate on Mac OSX.
  • Enable webrtc build on android.
  • Set WebMediaPlayerMS network state to loading instead of loaded
    • This indirectly fixes the problem where WebRTC audio is muted upon refresh. The HTMLMediaElement will try to cache fully Loaded videos when the element is destructed. This will signal to the HTMLMediaElement that the player was destroyed when loading, so it needs to recreate WebMediaPlayerMS upon destruction of the media tag.
  • Allowing multiple MediaPlayers to connect to WebRtcAudioDeviceImpl by sharing one WebRtcAudioRenderer.
    •  The audio is gone when new PeerConnection is connecting to a media stream. What is happening is that the stream will pause the existing MediaPlayer and create new MediaPlayers to associated to it. But since we only allow one WebRtcAudioRenderer to connect to WebRtcAudioDeviceImpl, the new MediaPlayers audio won’t be able to associate to stream.

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What I learned on my cross platform development panel

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Last Thursday, I had the pleasure of being a part of the Mobile + Web developer conference held at the Hilton Hotel in San Francisco. I spoke on a panel about where development was headed in a world where Web + Mobile are the two predominant platforms. There were four of us total, and we had a great time talking about how each of us lived in, and viewed the future of development in this two platform world. The panel was composed of (beyond myself) John Hammink, a QA engineer from Mozilla, Jonathan Smiley, a partner at Zurb building their own HTML5 framework, and Ted Drake, a senior accessibility engineer from Intuit.

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Removing our Staging environment

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The Staging environment of the OpenTok platform will no longer exist as of Wednesday, September 12. We are excited about bringing the quality, performance, and scale of our Production environment to all partners from their very first experience with the OpenTok platform.

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OpenTok iOS SDK v1.1 released

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We’re happy to announce that we’ve released a new iOS SDK binary full of some critical bug fixes, feature enhancements, and support for the iPhone 3GS.

To get started, head over to our GitHub repository.

To learn more about what new features are available, read on.

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