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#How to compress video files in vlc free
The VLC media player is one of the best free tools to compress video files without losing quality. Interframe compression: Interframe compression is a technique under which the differences in the video from frame to frame is analyzed using a block matching algorithm and records only the changed section of the image.intra-frame compression: Intra-frame compression technique is a way of compressing each frame independently by calculating prediction values that are done by dividing a video frame into blocks that are eight by eight pixels.Lossy codecs use compression that can be further categorized into two categories: Codecs and compression techniques are broadly classified into two different types:ġ: 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.Ģ: 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 and audio content in a way which is not noticeable. Video compression changes the format of a video depending on the codec used for compression. Video compression uses video codec that works on compression algorithms. A compressed video can be processed faster.Transferring compressed video files is faster than original video files because of its less network bandwidth.Video compression reduces the size of the video file that can be saved in less storage space compared to the original video file.The most frequently used video compression techniques are MPEG standard, H.261, 263 and 264 standards. Different techniques manipulate various factors like frame size, frame rate, bit rate, buffer size, etc to achieve the desired compression. 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. So while compressing a video, the redundant images can be reused to reduce the size of the video file. Think of each frame as an image that lasts for a specified duration according to the video capture or frame rate settings. 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.įor eg., A video clip consists of frames.