Webcasting to tablets and phones

Frank Carmona Control-Room (Live Production), Encoding, HTTP Streaming, Mobile

webcaStudio HLS compatible webcasts   Summary WebcaStudio can stream live and on-demand presentations to PC, MAC, and Linux and now also to HLS compatible devices. HLS stands for Http Live Streaming, and is Apple’s proprietary version of a HTTP streaming protocol. HLS became a temporary de-facto standard whilst open initiatives for a standard HTTP protocol were still under development.  In future webcaStudio versions the video player will be compatible with different HTTP streaming protocols too. HLS compatible devices are iPAD and some Android devices. In the case of the latter ones the functionality is not always optimal for live events whilst they normally work fine with on-demand contents. In the case of iPhones the choice of the webcaStudio platform is to stream Audio and Slides.   Setting up your account for HLS In order to enable HLS streaming in webcaStudio you have to contact Vancast and we will upgrade your account and webcast templates for this purpose.   Operating HLS compatible events Once your account has been upgraded, you will notice several changes in the user interface: Event Management > Edit > Contents >   …. In this page you will find a new content item named “slideshowshtml5”. An explanation on how this works is decribed below in this document. When accessing the “ControlRoom” to manage a live event you will be asked whether you want your event to be compatible for iOS devices or not. In the case where you tick the checkbox you will be prompted to select two different bitrate qualities for your video and audio streams. Never use a higher bitrate than the one you will choose on the RTMP encoder later. On the main event management page you will find a new menu item called “transcoders”, where you can monitor your transcoders.   Managing Slides for HLS compatible devices CASE 1: Using JPEG files for the slides This case is compatible with HLS directly. CASE 2: Using SWF converted powerpoints In the case where you use powerpoints converted to SWF files using iSpring you must use the “slideshowshtml5” content item to upload a .jpg version of the slides suitable for HLS compatible devices. The procedure is: Upload an SWF file to the “slideshows” content tab, then a new folder with the exact same name of the uploaded file will be automatically created in the equivalent location under the “slideshowshtml5” contents tab.   Then, upload a jpg …

webcaStudio Compatible Mobile Devices

Frank Carmona Encoding, Mobile, V3.4

Applies to Version 3.4 and newer within Version3 End-user compatible devices iOS  iOs Version 3.0 and newer Safari Browser Android Android Version 3.0 and newer Chrome browser   Encoding or transcoding settings iOS recommended codecs and settings: Video: H264   baseline  (in a MPEG-2 transport stream)  Audio: AAC LC Click here for a complete reference Android recommended codecs and settings: Video: H264   baseline  (in a MPEG-2 transport stream)  Audio: AAC LC Click here for a complete reference  

Mobile Devices Compatible Features

Frank Carmona Mobile, V3.4

Applies to Version 3.4 and newer within Version3 Webcastudio mobile devices list of compatible features are: Layouts: 7 compatible layouts associated to the equivalent on the PC’s layout file Large Video centered Video on the left side and slides on the right side both with the same horizontal size Slides on the left side and video on the right side both with the same horizontal size Video on the left side and slides on the right side. Video smaller than the slide (for slides with lots of detail) Slide on the left side and video on the right side. Video smaller than the slide (for slides with lots of detail)  Video on the left side and chat window on the right side Chat on the left side and Video window on the right side   Video can be configured for 4×3 or 16×9 aspect ratios An optional “Actions bar” in the bottom of the page can include the “Ask a Question” button The user can enlarge the Slide or Video by clicking on them. Video is enlargeable to full size as well.