Abr viewer 24/7/2024 ![]() Basically, Adaptive Streaming standards like MPEG-DASH and Apple HLS are designed to offer several representations (qualities) at the same time in order to fit every single viewing condition with only one stream. The quality of a stream is the result of several parameters such as the codec, the resolution, the frame-rate and the average video bitrate. As well as long startup times, re-buffering also has a negative impact to the user experience and therefore carries the same potential risks in terms of audience and revenue loss. With this in mind, it is fair to assume that any noticeable delay in startup represents a huge risk for content providers in potential audience loss and therefore revenue loss. In fact research shows that if the startup time is longer than just 2 seconds, around 50% of users will switched to other content or services. Unlike traditional video downloads, that need to be completed before playback, users expect streamed videos to start playback instantly, or within a fraction of a second. If the user’s bandwidth conditions are not perfect, optimizing one of those three values will have a negative impact on one of the other two. This always leads to a trade-off between providing the best possible quality, minimizing the startup time and avoiding buffering. The main challenge that your adaptive streaming player faces is to keep the users engaged by choosing the ‘optimal’ representation (quality level) of the video.
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