Monitoring and troubleshooting dynamic ad insertion with VideoBRIDGE
29/06/2023
INTRODUCTION Despite the rise of over-the-top (OTT) streaming services, traditional linear television continues to be a widely consumed media platform. With tighter competition comes an increased focus on profitability. Ad revenue has long been the leading driver of profits for television stations and cable operators. Local Dynamic Ad Insertion (DAI), enables operators to replace certain national ads with locally targeted ads based on a geographical location.
To make local DAI work, it is essential to have a reliable monitoring solution to ensure that the DAI trigger messages are delivered correctly, that the ads are properly inserted, and to troubleshoot DAI problems. Sencore's VideoBRIDGE product line has a specific set of features that helps operators effectively and efficiently monitor local DAI on their channels. This white paper will discuss how Sencore's VideoBRIDGE helps.
WHAT IS SENCORE'S VIDEOBRIDGE PRODUCT LINE? Sencore's VideoBRIDGE product line is a total monitoring solution for broadcast and cable operators, content providers, and streaming video providers. The VideoBRIDGE product line encompasses a broad range of products including IP probes ranging from 1Gbps to 50Gbps, RF and ASI probes and a centralized management server for pulling it all together. The VideoBRIDGE probes can each be used on their own or with the VBC centralized management server to really enhance their power; allowing operators to monitor their video delivery network from end to end.
The VideoBRIDGE probes come standard with QoS (Quality of Service) monitoring features focused on monitoring the physical and transport layers of streams. QoE (Quality of Experience) features are able to be added, which enables deep analysis of media content like video, audio, captions and ad insertion.
USE CASES FOR MONITORING DYNAMIC AD INSERTIONS Operators that send local DAI messages (SCTE35 or SCTE104) in their network feeds and others that do the local DAI have three main use cases where they need monitoring equipment like Sencore's VideoBRIDGE product line.
BEING ALERTED TO DYNAMIC AD INSERTION SYSTEM FAILURES
Broadcast networks insert SCTE35 or SCTE104 markers into their national feeds so that local entities, such as a local cable headend or a local TV station, know where in the stream they can insert their own local ad content. These markers are pre-scheduled and must be accurately and continuously placed for the whole local DAI system to work. Network operators need ways to be automatically alerted if the ad markers fail to be inserted or sent as expected.
The DAI monitoring features in VideoBRIDGE allow these users to continually monitor all their streams and automatically alarm on missing SCTE35/104 messages. Alarms can be set up to monitor maximum time between ad insert opportunities and minimum number of ad insert opportunities per clock hour. With these alarms, broadcasters can be quickly and automatically alerted if their national feeds are leaving without the expected SCTE35/104 markers.
The VideoBRIDGE system can also alarm on additional timing issues, such as, maximum event pair gap and pre-roll. The probes can generate an alarm if an ad insertion start marker is sent, but the end marker is not sent in a timely manner. The minimum and maximum pre-roll time (pre-roll is the time difference between the arrival of the ad insertion marker and the start of the ad) can also be monitored and alerted on, to make sure downstream equipment has a proper amount of time to queue up the ad for insertion.
VideoBRIDGE can log every SCTE35/104 message received by the probe on all monitored streams simultaneously. In addition, the full syntax of every message is captured for later analysis - with an intuitive human readable view as well as a raw hex view. This allows broadcast engineers to fully understand the nature and cause of problems with the local DAI system.
TROUBLESHOOTING DYNAMIC AD INSERTION PROBLEMS
Once broadcast networks are alerted to a problem with their SCTE35/104 ad insertion markers, it is time to figure out the cause of the problem. VideoBRIDGE has the capability to deep dive into the issues, all the way down to the message syntax, to fully understand the root causes.
VideoBRIDGE can log every SCTE35/104 message received by the probe on all monitored streams simultaneously. In addition, the full syntax of every message is captured for later analysis - with an intuitive human readable view as well as a raw hex view. This allows broadcast engineers to fully understand the nature and cause of problems with the local DAI system.
PROVING DYNAMIC AD INSERTIONS HAPPENED AS EXPECTED
The final use case for DAI monitoring, is validating that the local ad was actually placed in the content that was delivered to local viewers. This is required to both validate that the DAI is working and to be able to prove to the advertiser that their ad ran on the national network when it was supposed to.
To prove the as-run status of ads, VideoBRIDGE includes two innovative features. The first is an addition to the powerful compliance monitoring timeline view, where video thumbnails, captions and audio loudness measurements are continually captured to a database for later recall. The timeline view now includes the ability to log DAI opportunities, which are then overlaid with the video thumbnails and captions. This shows the user exactly where the ad placement was in relation to the video and if the desired output stream was archived. by showing the resulting local ad overlaid in the stream. This visual representation of the local DAI shows users proof that the ad was inserted as it should be and was delivered to end viewer. This proof can easily be recalled for any channel for up to 2 years in the past.
The second feature for validating ad placement is the g
LINK: | https://www.sencore.com/monitoring-and-troubleshooting-dynamic-ad-inse... |
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