What is Transcoding & How does it different From Encoding?


Transcoding is the process of converting an audio or video file from one encoding format to a different one so as to extend the number of compatible target devices a media file is often played on. Encoding and transcoding are sometimes used interchangeably, but the 2 processes, although closely related, are indeed different.

Encoding is the process of compressing video and audio files to be compatible with one target device. Transcoding, on the opposite hand, allows for already encoded data to be converted to a different encoding format. This process is especially useful when users use multiple target devices, like different mobile phones and web browsers, that don’t all support identical native formats or have limited storage capacity.

This is a significant function when a target device doesn’t support the present format of your media or encompasses a limited storage capacity that needs a reduced file size (think going from WMV to MP4). it’s also wont to convert incompatible or obsolete data to a better-supported, read newer, video format. A VMS bridge is a great tool to have nowadays, as surveillance cameras are now being utilized across many different industries.

Why transcoding is crucial for successful streaming?

As you now know, transcoding could be a key part of an adaptive streaming workflow and a step in preparing your content for a delivery protocol (such as current industry-standard HLS) that will reach the widest possible number of display devices.

Media is consistently changing and evolving, with new devices, applications, and input sources being introduced regularly. While new cameras, new feeds, and innovations in webcasting improve the standard and sort of content being produced, they also inevitably create new challenges in content delivery. And if you wish your viewers to always get the simplest quality viewing experience, adaptive streaming (at least at the time of this writing!) is the thanks to going.

Transcoding is the essential intermediate step in moving your best content from the capture device to a high-quality streaming output like HLS or DASH. These adaptive streaming formats are the simplest for reducing buffering and playback issues, delivering the sharpest possible picture continuously and with no interruptions.

How is Video Transcoding Done?

The video begins life in a format unique to the camera or program accustomed to capturing your images and sounds. This can be typically not the format needed to deliver the video online or play it from another device. VMS bridge is employed to alter the first format into one allowing the video and audio to play properly on a user’s devices — be they computer, tablet, smartphone, or tv.

Video encoding, or video transcoding, involves a 2-step procedure.

Step 1. The first file is decoded to an uncompressed format.

Step 2. This uncompressed format is then encoded into the objective format.

How Does transcoding Differ From Encoding?

Generally speaking, encoding refers to the method of converting uncompressed data to a specified format. This is often understood to be a lossy process. On the opposite hand, transcoding is the process of decoding a video file from one format to an uncompressed format and then encoding the uncompressed data to the required format. Video transcoding is usually used when the video file is being moved from a source to a unique destination, and when the 2 support different file formats, the VMS bridge also plays a great role in this process.

One of the foremost important uses of video transcoding is in uploading video from one source – a desktop, to an internet video hosting site, so the format is supported by the video hosting site. A VMS bridge works by getting video, both live and recorded, from network surveillance cameras.

Some other terminologies in use regarding video encoding and transcoding are:

  • Transmuxing – Conversion to a unique container format without changing the file itself.
  • Transrating – Conversion to a distinct video bitrate using the identical file format.

What is the longer term of Video Transcoding?

The demand for streaming video has exponentially increased the demand for video transcoding, and clearly, streaming video is here to remain. Why?

Convenience – No one likes being tied to a schedule, and streaming video allows you to observe your programs when and where you’ve got the time to look at them. you’ll be able to watch them on a bus, you’ll watch them on a train. you’ll be able to watch them. Well, you get the image.

Personalization – Video streaming apps and services make recommendations to support user viewing profiles. In other words, they customize your buffet of recommended content to support your personal interests.

Scalability – Many streaming video services allow you to choose and choose the features and functions you wish and only acquire those selections. If you don’t use it, you don’t pay money for it.

Amy Rey
the authorAmy Rey