Skip to main content

How does the live stream encoding works?


How does the live stream encoding works?

A live stream from a source that captures video – e.g., a webcam – is sent to a server, where a streaming protocol such as HLS or MPEG-DASH will break the video feed into smaller segments, each a few seconds in length.

The video content is then encoded using an encoding standard. The encoding standard in wide use today is called H.264, but standards like H.265, VP9, and AV1 are also in use. This encoding process compresses the video by removing redundant visual information. For example, in a stream of someone talking against the background of a blue sky, the blue sky does not need to be rendered again for every second of video, since it does not change a lot. Therefore, the blue sky can be stripped out from most frames of the video.

The compressed, segmented video data is then distributed using a content delivery network (CDN). Without a CDN, very few viewers will actually be able to load the live stream – the final section of this article explains why.

Most mobile devices have a built-in encoder, making it easy for regular users to live stream on social media platforms and via messaging apps. Brands and companies that want a higher quality stream use their own encoding software, hardware, or both.

And all of this is under a time constraint — the whole process need to happen in a few seconds, or video experiences will suffer. We call the total delay between when the video was shot, and when it can be viewed on an end-user’s device, as “end-to-end latency” (think of it as the time from the camera lens to your phone’s screen).

Its all performed with Networks smartness with evolving encoding mechanisms to provide smarter visual abilities

Facts to remember on Live Stream encoding principles:
  • The live stream is captured by a video source, such as a webcam, and sent to a server for processing.
  • A streaming protocol like HLS or MPEG-DASH breaks the video feed into smaller segments, typically a few seconds in length.
  • The video content is encoded using a standard like H.264, which compresses the video by eliminating redundant visual information.
  • Encoding software or hardware is utilized by brands/companies for higher quality streams, while most mobile devices have a built-in encoder for regular users to live stream on social media platforms and messaging apps.
  • The compressed and segmented video data is distributed through a content delivery network (CDN), which enhances the accessibility for viewers.
  • The entire process, from capturing the video to delivering it to the end-user's device, needs to occur quickly to avoid significant delays in the video experience, known as "end-to-end latency."





Comments

Post a Comment

Popular posts from this blog

Internet Censorship: A Global Map of Internet Restrictions

The internet is a global medium playing a crucial role in our lives, acting as a source of instant information, entertainment, news, and social interactions. However, more than 65 percent of the world’s internet population, approximately 5.3 billion people, face some form of restriction in accessing this global information highway. As an exploratory study, let's uncover which countries impose the harshest internet restrictions and where citizens enjoy the most freedom of online info-access. The Worst Countries for Internet Censorship Surprisingly, not all the usual suspects take the top spots. North Korea, China, and Iran clinch the dubious distinction of having the worst internet censorship, scoring a maximum 11 out of possible 11 points. However, the inclusion of Iran in this group is due to its increased attempts to block VPNs and create a government-monitored VPN scheme. In these three countries, residents are denied access to Western social media, porn, and significant news me...
Post a Comment
Read more

Programming Language That Rejuvenated Computer Skills in 2023

In the digital whirlpool of our times, a programming language boomerangs to the surface, splashing computer skills with a fresh coat of vitality in 2023. The realm of programming is a relentless chameleon, with languages slipping in and out of prominence, driven by the gusts of evolution and innovation. Here's a deep dive into why this newfound language packs such a potent punch. ## The Tantalising Tango of Languages: Imagine being at a masquerade ball, filled with masks of all hues and strokes. This is the programming world, where you dance with languages more varied than the sands of Saharan dunes. But how does one pick the right dance partner, the right language to master and mold? ### An Exciting Riddle: You would think, in the realm of programming languages, picking the most intricate one would make you the belle of the geeky ball. But, let me see you in on a little secret, it's not always about complexity. Sometimes, it's like finding that perfect pair of shoes at a s...
Post a Comment
Read more

Next generation of education

For the educated generation, in addition to educational certifications the success of spreading thoughts are appreciated. The richness of society  depends on the endeavors you credited to your surroundings. Prior joining for gaining a educational degree, an awareness of benefiting of education should be shared to students. Discipline is a very important part of life. Discipline implies an orderly manner of living and conducting oneself. It is essential in every sphere of life, whether it is at home or in work. Only a disciplined person can make a success of whatever he engages in. The school also plays a very important role in forming the character of a child. The educational institutes should give students opportunities to participate in extra-curricular activities, sports and  hold inter-class and inter-school competitions in order to develop their interests and talents and the sportsman spirit. I encourage the  education imparted to students should be job-oriented, so...
Post a Comment
Read more