Videos make websites more engaging and lively, promising audience “stickiness” and return visits. However, research studies show that slow startup or playback stalls of videos often leads to visitor loss. In fact, Akamai found that after a two-second delay, each additional second of stalling could cost you a 6-percent depletion of audience.
It should come as no surprise that video use on the internet is exploding. You can see the dramatic growth of video on the average site in this SpeedCurve blog post.
With the growth in video comes greater bandwidth use, which is not only costly for your IT budget, but for your visitors as well. Beyond the expense, there is the user experience to consider. The heavier the page, the longer it will take to load, and the greater likelihood visitors will abandon your site. Page load speed is also an important factor in SEO ranking, so clearly video is something we need to take seriously and get right. Video is challenging, presenting terms still unfamiliar to developers - like codecs, bitrate and adaptive bitrate streaming. As a result, mistakes are being made in video implementation.
Over the life of a mobile device, the cost of a cellular data plan often exceeds that of the device itself. To optimize data usage and purge useless data on their mobile devices, users can enable Data Saver from Android 7.0 (API level 24). To do so, users toggle Data Saver in quick settings under the Notification shade or under Settings > Data usage. With Data Saver enabled, apps that aren't whitelisted cannot use cellular data in the background. They are also directed to consume less data while active.
In Part I of this series, we discussed the optimal way to deliver progressive video streams, taking advantage of modern, efficient codecs. That approach works great for short-form videos (under 20 seconds) and for videos that are displayed at a low resolution (such as ads and previews). But what if you're delivering videos that are longer than 20 seconds for a higher-resolution experience? You can certainly still deliver them as a single file (progressive streaming), but you might run into issues, such as buffering or too high a resolution.
Short-form videos are starting to pop up on the web in places never seen before--hero banners, product pages, ads, social content, and the like. This trend could be problematic because of the many formats and codecs, let alone inadequate expertise on what best to adopt for web consumption. Nowadays, most people are familiar with image formats (JPG, PNG, and so forth) but ask them what HEVC, Vorbis, and VP9 are and their eyes glaze over.