What is video compression? Video compression is a technique of converting a video into a smaller sized file compared to the original video by erasing repetitive and non-functional content of the source video file.
For eg., A video clip consists of frames. Think of each frame as an image that lasts for a specified duration according to the video capture or frame rate settings. So while compressing a video, the redundant images can be reused to reduce the size of the video file.
The biggest challenge in video compression is to represent a video file in lesser bits compared to the original video file size by maintaining the same video quality. Different techniques manipulate various factors like frame size, frame rate, bit rate, buffer size, etc to achieve the desired compression. The most frequently used video compression techniques are MPEG standard, H.261, 263 and 264 standards.
Advantages of Video compression:
Video compression reduces the size of the video file that can be saved in less storage space compared to the original video file
Transferring compressed video files is faster than original video files because of its less network bandwidth
A compressed video can be processed faster
Independent bytes order
Video compression uses video codec that works on compression algorithms. Video compression changes the format of a video depending on the codec used for compression. Codecs and compression techniques are broadly classified into two different types:
1: Lossless codecs: Under Lossless compression technique you can recover the data in the original form without losing a single bit of data after you uncompress.
2: Lossy codecs: In lossy compression, you cannot recover the exact quality of video after you uncompress because it reduces the video file size permanently by removing the redundant video an ..
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