| − | What is HLS Streaming? When Should You Use It?<br />Table of Contents<br />What is HLS?<br />How HLS Works?<br />When Should We Use HLS?<br /><br />A few years earlier, uploading videos and streaming them online used to be a tedious job and rarely even today due to the lack of high-speed data coverage. In such a scenario, consumers have gone crazy over live streaming and on-demand video content and moreover many platforms have turned to offer live video feed services on multiple devices. <br />As per the reports, about 80% of consumers would rather prefer to watch live video than reading a blog to get the same message. Considering this craze among people especially for this format, the delivery of video content has undergone several developments to give viewers the best live streaming experience. One such development is the emergence of HTTP live streaming or well-known as HLS. <br />What is HLS?<br />HLS-HTTP Live Streaming is an adaptive bitrate streaming communication protocol that is used to deliver audio and video content over the internet. HLS was initially developed by Apple to communicate with its devices such as AppleTV, Macs, and iOS devices. <br />However, it works on all adaptive streaming technologies giving users a multi-channel live video streaming experience. Since it’s an HTTP-based technology, it requires no special configuration and can be served from a standard web server, thus, all the switching logic resides on the player’s end. <br />Technically speaking, HLS-HTTP Live Streaming is a truly adaptive bitrate technology. When a video is encoded to HLS, multiple files are created for various bandwidths and with different resolutions. [https://flipboard.com/@dinnerwolf7 https://flipboard.com/@dinnerwolf7] are later mapped to the client in real-time using an index file based on the screen size & available bandwidth. Adaptive bitrate video delivery gives a superior experience as it delivers a static video file at a single bitrate and the video stream is adjusted to the client’s bandwidth capacity. <br /><br />How HLS Works?<br />The most significant feature of the HTTP Live Streaming protocol is its ability to adapt the bitrate of the video to the actual speed of the network connection. This optimizes the quality of the viewing experience. <br />HLS videos are encoded in distinct renditions at distinct resolutions and bitrates, which is usually referred to as the bitrate ladder. When a connection gets slower, the HLS protocol automatically adjusts the suitable bitrate to the available bandwidth. HLS avoids re-buffering and stalling effects. <br />Server---An HLS video stream originates from a server where the media file is stored as well as the stream is created. As HLS is a HTTP-based technology, any ordinary web server can serve the stream.<br />Two key processes take place on the server:<br />Encoding---In this process the video data is reformatted as per the video-compression standards of either H.264 or H.265 encoding so that any device can recognize and interpret the data. During encoding, multiple video copies are encoded with variable bit-rates, in simpler words video copies are created with varying quality levels.<br />Segmenting---the video is formatted into multiple smaller segments that have a few seconds of length. The length of the segments can vary between 6-10 seconds. HLS creates an index file where it manages the order and timing of playing individual segments. HLS also creates several duplicate sets of video segments at various quality levels, such as 480p, 720p, 1080p, and so on. <br />Distribution---Once the video gets encoded and segmented, it will be ready to get streamed to the viewers devices over the internet when client devices request the stream. Generally, a CDN-Content Delivery Network will help distribute the stream to geographically diverse areas. It also caches the stream data and enables faster delivery to the client devices.<br />Client Devices---The client devices receive the stream and play the video. The client device uses the index file as the reference and assembles the video segments in order. As per the index file sequence the video segments are played. It switches from lower to high quality picture and vice versa as needed. <br />When Should We Use HLS?<br />There are some cases where videos are not that heavy. For instance, you could have a sequence of images encoded as a 1-2 seconds video, with a size of less than 1 MB. HLS is undoubtedly the best protocol to use with HTML5 video players. The main reason is that HLS content tags are programmable into a website’s HTML code. Additionally, its ease of implementation and customizability for video publishers and remaining free of charge for users are what set HTTP Live Streaming protocol apart from its alternatives.<br />Currently, HLS is the most widely used protocol for streaming, it is a safe bet for the majority of broadcasts. Anyone streaming content to connected devices must consider it especially when broadcasting sports, live events and asynchronous videos, where the quality is key. Low latency is worth considering as a reason to opt for HLS. When streaming to mobile devices, HLS is the ideal choice. HLS is also effective when we want to deliver high resolution videos with a size over 3MB.<br /><br />Bottom Line <br />While a video streaming platform reliant on HLS could be implemented and deployed in-house with the help of open source tools, it may be probably a good idea to use video publishing services, if you are not an expert in the technology. They can bring advanced features and take care of all technical aspects and let you focus on customization needs.
| + | 多毛症和脫髮論壇是一個提供有關藥物、頭髮移植和普遍脫髮經驗的信息建議的信息場所。該論壇通常非常活躍，在其眾多用戶群之間進行友好、信息豐富的對話。用戶喜歡這個特定網站的一件事是它對所有用戶都可用，無論他們是否有脫髮。雖然其他論壇僅限於脫髮患者，但 Devacurl 已經解決了這個問題並將其提供給所有人。這也包括男性脫髮患者。<br /><br />雖然脫髮論壇的目的是提供有關脫髮治療的有用信息，但該網站也對某些脫髮治療採取強硬立場。本網站的用戶不得討論頭髮移植或其他脫髮治療的任何不利影響。這些討論應僅在適當的相關主題或線程中進行。 Devacurl 不支持產品評論，而是允許其用戶與其他用戶分享他們的體驗。通過這種方式，經歷過脫髮和治療的人可以與其他有相同經歷的人交流，向他們學習。<br /><br />雖然大多數脫髮論壇都沒有正式化，但它們確實提供了有用的信息，可以使正在接受治療的人受益。論壇的討論和評論非常活躍，許多用戶每天都會發布有關他們的頭髮移植或其他治療的問題。可獲得的信息越多，毛髮移植醫生就可以為患者提供更好的護理。未來可能需要進行臨床試驗，以進一步發展毛髮移植和治療方法。通過論壇和博客，可以分享脫髮的經驗，並幫助遭受痛苦的其他人更多地了解他們的狀況。<br /><br />此外，患者可以從嘗試過不同治療方法和程序的人的意見中受益。雖然您可以從醫生那裡獲得所有您需要的答案，但您無法確定哪些治療方案對您來說是安全有效的。您可能會發現，在找到最適合您的方法之前，您需要嘗試多個脫髮論壇或治療方案。通過論壇和博客，面臨脫髮的其他人可以分享他們的故事並了解他們對頭髮移植手術的期望。有了這些信息，他們可以就他們的治療選擇做出明智的決定。<br /><br />由於脫髮論壇和博客通常由專業醫生主持，因此易於訪問和閱讀。這使他們成為寶貴的信息來源。因為它們是由醫療專業人員編寫的，所以您可以確保它們盡可能公正。這確保您可以獲得有關各種頭髮移植和治療方案的客觀、真實的信息。因為許多脫髮論壇和博客都是由醫療專業人士主持的，所以您可以確保他們盡可能公正。這確保您可以獲得有關各種頭髮移植和治療方案的客觀、真實的信息。<br /><br />頭髮修復論壇和博客也是結識與您遇到相同問題的其他人的好方法。對於有脫髮問題的人來說，感到孤獨和沒有支持是很常見的。互聯網可以為您提供這種支持，即使您不使用它來進行頭髮修復治療。在你的處境中找到可以同情你困境的其他人可以幫助你應對後退的髮際線並給你鼓勵。無論您決定訪問脫髮論壇還是自己寫博客，從已經遇到過類似問題的人那裡獲取第一手信息的好處是無價的。<br /><br /><br /> |
