Measuring Latency in ABR Streaming

It is critical to test assumptions when making recommendations. Although the initiating document for this project suggested very informed best practices to reduce live stream latency, based on the collective experience of those involved and their companies, substantiation requires testing and validation. A first work item for this project will be to define the work bench structure relying on lab resources being made available at Liberty Global. During this first work item, the group will define the common part of the test workflow, identify the contributors for each building block, and define a baseline which can be used as an anchor to compare with for other low latency streaming technologies defined in subsequent work items. Then, four work items corresponding to four different streaming technologies have been identified and selected for the tests. The definition of the tests that will be carried out for each of the work items as well as the test bench. The resulting outcome of the tests (i.e., measurements) will be collated into a document resulting in a set of measurement results and reference architectures for low latency live streaming.