Martin Schmalohr – IRT Lab

OpenCDN – Player-based IP distribution from alternative servers

Martin Schmalohr — Wed, 11 Sep 2019 07:56:26 +0000

For the growing popularity of video streaming in OTT services, multi-sourced caching solutions can reduce costs, improve performance and avoid vendor lock-in. Data traffic of ARD and ZDF for streaming audio and video content has grown rapidly during the last years. This trend will enforce with the shift from classic linear TV to VoD streaming ...

IRT Teststreams on YouTube

Martin Schmalohr — Tue, 25 Apr 2017 11:38:39 +0000

This is a quick test, if the YouTube Cloud Transcoder supports MXF-Contribution Quality for high quality uploads as it is used within ARD and ZDF. For a broadcaster it can be desirable to upload their productions in high quality to cloud-based video-portals like YouTube without any further recompression to maintain quality and save processing costs. ...

AV-Portal Streaming Testcases

Martin Schmalohr — Wed, 25 Jan 2017 09:39:26 +0000

IRT opened an extensive repository of differently encoded Audio- and Videostreams for PC, Smartphones, Tablets and HbbTV-Devices. Launch the Testportal http://avtest.irt.de Various test cases are presented in a user interface as progressive download and adaptiv for MPEG-DASH, Apple HLS and Adobe HDS in multiple encodings (H.264, H.265, HE/AAC, E/AC3), container formats (MP4, MPEG-TS) and resolutions ...