No matter the industry or use case, encoding is a key step in the video delivery chain. Video encoders make this possible by compressing streaming data into a manageable size. What once required renting VHS tapes or purchasing DVDs can now be accomplished by simply streaming video content over the top (OTT) or storing it in the cloud. The ability to fit more data into less space has changed the way video is stored and distributed. This represents the transcoding step, where the content is altered and packaged for end-user delivery. Finally, the gasoline is blended with ethanol and distributed to multiple destinations via tanker trucks.This is the encoding stage, where the video source is distilled to its essence for efficient transmission. Next, the crude oil is refined into gasoline for bulk transport via pipelines and barges.This crude oil can be thought of as the RAW video source itself. First, crude oil is extracted from underground reservoirs.Let’s use the gasoline supply chain to better demonstrate the difference between these two live streaming processes. All they know is that the video content is streaming live and in high quality.Ī simple analogy for transcoding and encoding Thanks to the efficiency afforded by the encoding solution used, viewers are none the wiser. At this point, the video content has often been encoded, transcoded, delivered globally, and decompressed.
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Once the stream reaches viewers, a video decoder built into the player software or set-top box will decompress the data for playback. These protocols make the content more scalable and adaptable for delivery to viewers with varying internet speeds. Protocols like HTTP Live Streaming (HLS) and Dynamic Adaptive Streaming over HTTP (DASH) come into play here. In most cases, these streams are repackaged at the next step of the workflow for delivery to the end user. RTMP and SRT describe streaming protocols that transport content between the encoder and the online video host. This involves putting the components of the stream into a commonly accepted contribution format such as Real-Time Messaging Protocol (RTMP) or Secure Reliable Transport (SRT). The encoder then packages the stream for delivery across the internet. Live encoders employ lossy compression, tossing out unnecessary data to ensure the greatest reduction in file size possible without degrading perceptual video quality. Milliseconds after a stream is captured, an encoder uses video compression algorithms called codecs to condense the data. But more often, broadcasters rely on software and hardware live streaming encoders to get the job done. Sometimes encoders are built into the camera - as with IP surveillance systems. Keep reading for the what, where, when, and why of video encoding.Ī live streaming encoder is a solution used to convert RAW video data and compress it for distribution across the internet.
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From free software options to 4K live streaming encoder hardware, we cover it all. Our team of video engineering experts has put together a comprehensive comparison of the best live contribution encoders available in 2023. While most encoders deliver on this requirement, they vary in terms of performance and feature set.īut where do you start when selecting an encoder? Streaming data must be compressed for efficient delivery without sacrificing quality. In today’s competitive online video market - where quality of experience is table stakes - ensuring your team has the right encoder for your unique needs is key. Their utility is two-fold: content distributors use encoders to digitise video (changing from analog to digital) while simultaneously shrinking gigabytes of data down to megabytes. Streaming encoders are an essential tool for transporting live video across the internet. Without live streaming encoders, though, this wouldn’t be possible. Consumers expect quality video experiences at the touch of a button.
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