![]() ![]() ![]() On the other hand, low values will also result in high bitrate producing high-quality videos at the expense of file size.Ĭonsider a file big_buck_bunny.y4m with a file size of 7 GB. The higher the value, the higher the compression, although this may lead to quality loss. For doing so, click the drop-down menu beside. The Constant Rate factor (CRF) is the default quality setting for x264 and x265 encoding. The simplest way to compress a file using the software is to select a small size format like MP4, FLV, WMV, etc. Using the CRF of values between 0 and 51 should provide the best compatibility for x265 codecs. The x265 codec is a free library for encoding video into H.254/MPEG-H HEVC compression format. Or you can use package managers like Chocolatey to download the FFmpeg using the command window. Extract the file and download it on your computer. Download the FFmpeg ZIP file from the official site of FFmpeg. In this tutorial, we will use the x265 codec. Let us look at the steps and command lines we need to follow to compress the audio and video files using FFmpeg. First, we need to select a small container, an excellent codec to encode the video, a low bitrate, and a low fps. To make the best decision in video compression, we implement a simple equation. ![]() ![]() For example, an AVI video file might still be larger than the small file of MP4 type despite being a small size. There is no universal way to reduce a video file size because various file types are not created equal. Add-c:v libx265 to output HEVC/H.265 video instead of H.264. However, to compress files efficiently, we need to use codecs, bitrate, container, and fps. Example: ffmpeg -ss 823.2 -t 44.1 -i input.mp4 -ss 1074.1 -t 27.3 -i input.mp4 -filtercomplex '0:v0:a1:v1:aconcatn2:v1:a1va' -map 'v' -map 'a' -c:v libx264 -crf 29 -preset slower output.mp4 Even smaller files with libx265. The command above will convert the file from the specified format to the output format. ![]()
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