Video streaming over the internet is a task since video files are quite heavy in size. But how does the streaming happen if files are heavy? It is with the help of streaming technology which includes encoding via an encoder, transcoding with a transcoder, delivery through a content delivery network, management with a content management system, etc. The role of the video codec is quite crucial at first since it makes the file more manageable and therefore streamable. Let us understand what is video codec and how it helps in making the file more manageable and streamable.
What Is A Video Codec?
A video codec helps in compressing the RAW video files. It helps in streaming the content easily. Codec consists of both the encoder and the decoder. An encoder helps in compressing the video files and making them transferrable. On the other hand, a decoder is used for decoding the file and preparing the video for playback. Using a codec, all the unnecessary data is erased or removed, and the file is compressed. Video codec compresses the video file by compressing the frame of the video making a low file size and hence making the delivery easier and faster. Without a codec, it will be difficult to transfer the video file over the internet.
How Does The Video Codec Work?
As we stated above, raw video files are heavy in size. All of us are aware that video files are collections of still images that are used continuously to create movement. These files are often heavy to stream over the internet since it needs bandwidth and storage to deliver the video to the end audience. Video codec helps in compressing the file.
Compression can be divided into two different parts which are inter-frame and intra-frame compression.
In inter-frame compression, all the static parts are used in the consequent frames. For instance, if one person is speaking on a certain topic with a stationary background then there is no need to take all the frames of the stationary background. While on the other hand, in intra-frame compression, every frame is compressed.
Inter-frame compression is considered more efficient than intra-frame compression. Most of the codecs are optimized to get over all the redundant images in the file making the file short and delivery of the file instant.
In a current time of speed and intense competition in the video streaming arena, it becomes inevitable to deliver video content quickly. It brings a good user experience and video codec help in doing the same; quick delivery and better user experience. This, in all, brings more viewers to your platform since they do not have to face any lag while watching their favorite content.
