To delete duplicate video files quickly and easily, you can also use iBoysoft MagicMenu to help you. If you used to edit video files with Mac, then your Mac may store more duplicate video files than you know. In addition to compressing a video on Mac, to free up space on a Mac computer, another thing you can do is to delete duplicate video files. Now, you can delete the original video to free up more space on Mac storage. This zip file should be smaller than the original. Wait a moment, a new zip file should appear in the same folder, this is the compression file of your video.Here XXX is the name of your video files. Right-click on this video and choose Compress "XXX" from the context menu.Go to Mac Finder, and open the file folder which contains the video you want to compress.Free download, install and launch iBoysoft MagicMenu.Please share this informative post on your social media, thanks! Overall, there are three main aspects that help you reduce the video file size: resolution, bitrate, and encoding. But since cameras are so outstanding nowadays, the reduction in quality might not even be noticed by our eyes. Since compressing video may delete some data, your video will technically get worse. You may also wonder if compression affects video quality. So when you compress videos, you are doing something very similar to compressing photos, but at a much larger scale, stripping some information from every frame. What is video compression and how it worksīefore you learn how to compress all of your videos, you may want to know what compression is and what happens when a video is compressed.Ī video is just a series of photos played in rapid sequence. How to compress video files on Mac with QuickTime Player How to compress video on Mac without losing quality What is video compression and how it works This article will explain what is video compression and how to compress a video on a Mac, just keep reading. What else can you do to reduce the video size? Actually, you can compress video files so that they will take up less storage space on your Mac. However, if the large video files are very important to you and you are not willing to remove them from your Mac. It's not a surprise that the largest files on your Mac are probably your videos. To choose this option, choose "Re-size video" from "Advanced Settings" above.When you're running out of space on your Mac hard drive, the very first thing you may do is to find large files on your Mac and delete them to get more space. For example, if you have a 4K (4320p) video but your target device is 1080p, you can downsize the video to fit 1080p and save file size. 4: Make Video Size Smaller (Re-Size)Ĭhoosing a smaller video resolution (dimensions) can also save file size. For more info: read video bitrate control. To choose this option, select "By Max Bitrate" from the "Video Compress" dropdown. Select this method if you are using the video in a streaming application where you want to control the streaming bandwidth rate. The quality is set by CRF (constant rate factor). This method allows you to set the max bitrate for given video quality. This is the default video compression method used. Increase the target size if you need better quality. To overcome this, start with a decent size (as a percentage of original), then test for video quality. The downside is you don’t know how the target size will affect video quality. The pros of this method are, you can achieve a certain target size. For example, if you set it to 60% for a 1Gb file, we will attempt to make your compressed file size 600Mb or less. This method allows you to set a target file size for your video as a percentage of the original size. As a Percentage of the Original Size (Default) If you prefer a lower file size over encoding time, choose a slower preset. Choosing a slower preset allows better optimization (lower bitrate/file size) for a given video quality level. Preset: Presets refers to the video compression speed. Higher values mean more compression (reduced file size), lower values mean better quality (but bigger file size). For the H264 encoder, possible CRF values range from 0 to 51. To do that, it uses different compression levels on different frames. By Video QualityĬRF (Constant Rate Factor): CRF method attempts to keep a constant perceived video quality. We provide 4 settings related to both methods. You can either optimize the bitrate or resize the video to a smaller size. There are two main methods to compress a video.
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