For instance, if you were streaming a digital conference to the web, you might be working with IP cameras in your conference space. This is meant in the most general sense of transcoding a video or stream, making changes to the video/audio itself. Three tasks might fall under the larger umbrella when someone refers to transcoding video content: However, because they are related, they’re sometimes confused.Įssentially, transcoding is a two-step process in which (encoded) data is decoded to an intermediate format and then encoded into a target format. Neither of these digital media tasks can properly be called transcoding. For instance, you may have an H.264 video clip captured from a camera on your drive and by transmuxing, or rewrapping its container, it can be made suitable for delivery over the web via HLS (which breaks the video into small MPEG-2-TS files, referred to as chunks, of varied bitrate-but notably won’t make changes to the base clip). This is only changing the way video and audio data packets are organized. This is less of an intensive process than transcoding, and also a fairly common procedure in content delivery. Transmuxing/rewrapping is when content that is compressed is repackaged into a different delivery format-but without making any changes (including any further compression) to that packaged content. Relating to transcoding: video pulled in by a digital camera may be immediately compressed by the camera or via a linked encoder, however as mentioned above, it still won’t be suitable for delivery to a wide online audience without transcoding!
#Emby server transcoding on live playback full#
This is often desirable to provide full detail that can be edited to a producer or content creator’s preference, but, due to the large file size, they will have to be compressed to a more manageable size for playback. However, digital cameras still may capture uncompressed RAW files which are very large since they are data directly from the camera sensors with no loss of quality or alteration. (Note: the word “footage” used to literally refer to a number of feet of film or tape!) This isn’t much of a concern now as today’s all-digital cameras can be set to internally compress footage into more manageable codecs like H.264. Compression is essential in preparing video for streaming in earlier eras of video when audio and footage might come in on analog tape formats or even film, media would need to be digitized and compressed to be compatible with computer applications, like web pages or video editing workstations.
#Emby server transcoding on live playback trial#
Get Started with Kaltura Virtual Meeting Start Your Free Trial Related, but different, proceduresĮncoding/compression is an important related concept. Think about watching a feature film on a smartphone and you’ll get the idea. Transcoding is a digital-to-digital conversion of one type of encoded data (video or audio) to another, often because the target device that will be used to display the content requires a smaller file size.
Or video for a live broadcast can be transcoded from its original format into differently formatted streams to be delivered out to the largest number of viewers on the widest range of devices. For example, a high-resolution video shot on a digital camera (HD, 4K, etc.) can be transcoded into a lower-resolution format for editing in other words, smaller files that are faster and easier to manipulate in editing software. Transcoding is taking encoded (or “compressed”) video or other digital content, decompressing it, and altering and re-compressing it.
Why transcoding is essential for successful streamingįirstly, transcoding needs to be differentiated from two other easily confused digital video processes: compression and transmuxing/rewrapping.In this article, we’ll lay out the fundamentals of transcoding, and what it means for content creators and broadcasters in the video streaming field. It is particularly important for ensuring your content can be viewed on the widest possible range of devices. It converts an encoded digital file or set of files into an altered set of digital files that better meet the needs of your hardware or your audience.
Transcoding is a key task in an adaptive streaming workflow for video. “What is transcoding?” you may ask, particularly if you’re new to the world of digital and online video.
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