![]() Full HD resolution, for instance, contains 1920 x 1080 pixels, while Ultra HD has 3840 x 2160 pixels. ![]() If you want to display the video on a large HD monitor, you need a higher resolution than the resolution required for a smaller smartphone display. The resolution determines the size of the image: it sets the number of pixels that will be displayed.To do this, you first need to consider the two basic parameters of resolution and frame rate. To compress an MP4 means to reduce the file size of an existing MP4 file. This factor sets MP4 apart from other formats and has made MP4 the most important and commonly used file format for video. However, modern MP4 codecs can hold this loss of quality in check. MPEG-2) can also be used for MP4 files too.Ĭompressing MP4 video to smaller size is usually associated with a reduction in quality, since this is the only way to create video files that are small enough. The most important codecs for MP4 are H.265 or its predecessor H.264 for video data as well as AAC (for audio data). MP4 is a file container for digital video that lets you compress video data using codecs. In addition, this software uses a static build from the FFmpeg project ( FFmpeg static build and FFmpeg source) under the LGPLv2.1 (GNU Lesser General Public License). ![]() Finally, if you want to customize output video dimension or aspect ratio, you can use "Scaling" option, video dimension (width and height) must be divisible by 2, the supported aspect ratios include 4:3, 1:1, 16:10 and 16:9.īy using this small tool, you can easily decrease your video file size by yourself, it can help you to save disk space, and share video clips with your family and friends on the Internet, or view these videos on your mobile phones and other handheld devices. Secondly, by using "Cutting" options, you can choice a part of video, set a start time and an ending time, you can easily convert and compress a part of video. Firstly, you can change output audio bit rate, because audio content will occupy some file space, you can set a smaller bit rate to reduce file size, or simply set audio quality as "No Sound", then output file will only include video content (silent). The encoding video quality is based output file size, output file size is more bigger and resulting video quality is more higher and more clearer.įurthermore, in order to get a smaller result, software also supports some useful compression options. The generated video format is MP4 container format with H.264 video codec and AAC audio codec. (Bitrate information is displayed as KB/S, KB/S = kiloBits/second). This desired video size is approximate value, resulting file may be smaller or larger than this size, you can change this value as you need. After software open a source video, it will read and show key video information, such as: File Size, Bitrate, Duration, Video Format, Video Bitrate, Audio Format, Audio Bitrate and Video Dimension (Width / Height), then software will calculate an estimated output video size, that is "Desired Video Size". The basic usage is very simple, click on "Open" button to select a video file, then set a desired compressed video size, finally, click "Compress" button to start video compression.įirst of all, the most important option is "Desired Video Size". ![]() This software can work with many popular video formats, such as MP4 (MPEG4), MPG, AVI, FLV, F4V, M4V, WMV, MOV, MKV, ASF, RMVB (RM) and more.įreeware, clean and easy to use, free for personal and non-commercial use, get it from a file mirror. Free Video Compressor is a free and lightweight video compression software that can compress almost common video files, it can help you to easily shrink a video clip and reduce video file size.
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