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• Capturing video over USB/HDMI/Thunderbolt

  12 novembre 2016, par Yatko

  Looking for a solution for capturing video over USB/HDMI/Thunderbolt from a digital output (e.g. digital camera) to a computer, Mac and/or Windows.

  The goal is to have an URL to a real-time video stream (e.g. IP/PATH/ ?.mp4) that we can further process/transcode/send to a media server.

  I’m looking for tips and ideas -similar to the method below-, maybe someone met a new project that’s focusing on capture-cards and devices, that does’n need a custom FFmpeg build. Something different.

  • we can capture the HDMI stream form a GoPro, using a Blackmagic Intensity Shuttle and DeckLink SDK with custom FFmpeg build using --extra-cflags and --extra-ldflags and the rest is straightforward

  Is there any tool, open-source project, something that’s made for this purpose ? Maybe something that also supports the Elgato Game Capture HD60 as well ? Any experimental projects for capturing and processing the incoming video over USB/HDMI/Thunderbolt ?

  The ultimate goal is live streaming to Wowza, using Cameleon live and a Sony Alpha a7S.

• Pre-announcement : Piwik Marketplace soon open for paid premium features

  12 octobre 2016, par Piwik Core Team — Community

  Updates : Premium Plugins now available on the Piwik Analytics Marketplace. Further announcements about premium plugins : 1) Powerful Video Analytics and Audio Analytics and 2) A/B Testing Platform for Piwik Analytics.
  

  The goal of the Piwik project is to build the best open digital analytics platform that lets you measure what matters to you while giving you full control of your data. The beauty of the Piwik Analytics platform is that it can be customized and extended by building or installing new features on top of the Piwik core.

  On our open Piwik Marketplace you can already discover and download over 70 free plugins which enrich the functionality of your Piwik in many ways, and themes which change the look and feel of the Piwik user interface. To help users make more of their analytics data and ultimately be more successful, in a few weeks we will offer you the possibility to purchase subscriptions for premium features in the Marketplace.

  

  Get more out of your Piwik

  Opening the Marketplace for paid plugins will bring more premium and enterprise features so you get more out of your Piwik, when you need it. It will also help us, the Piwik team, to further innovate and improve the open-source Piwik platform to realize our mission :

  “To create the leading Free and open source analytics platform, and to support global organisations and communities to keep full control over their data.”

  1-click installation and update

  You will find the new premium features when you browse the Marketplace in your Piwik app and on our Piwik Marketplace website. Purchased plugins will be installable and updatable with one click, just like you are used to from free plugins.

  Sell your plugins on the Piwik Marketplace

  If you are a developer who wants to sell plugins on our Marketplace, please get in touch. As a vendor you will be able to see reports about your sales, upload new versions of your plugins, reply to pre-sales and support questions, and more. By tapping into the Marketplace’s infrastructure and distribution, including secure payments and distributing plugins to customers, developers can focus on building great products.

  Get started developing plugins

  If you are wondering how to get started developing plugins, check out our getting started developer guide and our guide about how to get your plugin ready for the Marketplace.

• ffmpeg command line to manipulate audio track with multi language m2ts file

  8 octobre 2016, par user1320370

  I like to manipulate an audio track inside an m2ts file with some ffmpeg command line.

  In short I need to manipulate the audio track with ID 2 of an m2ts file that is AC3 format (dolby digital 5.1 or 2.0).

  The modifications are :

  • add equalizer filter : 60 Hz + 3dB, 80Hz +2 dB, 100 Hz +1 dB
  • increase the volume : +2 dB

  The m2ts file is multilingual for this reason I need to change a specific ID track.

  The AC3 file is lossy, I hope that eventual audio modifications don’t add more compression like for example with Photoshop when re-saving a jpeg file.
  On lossless file (wav or flac) I’m sure I can save and re-save without loss of quality but on AC3 I’m not sure.

  Someone can please post the command line to do it without loss of quality ?