Set the global quality as an integer in lambda. Used to enable constant quality mode (VBR) encoding through the qscale flag, and to enable the pass1 and pass2 modes. In case VBR (Variable Bit Rate) mode is enabled this option is ignored.
Open a terminal and paste in the following command, changing the values as needed: ffmpeg -i input -c:v libx264 -crf 20 -preset slower -an -sn -map_metadata -1 -map_chapters -1 -vf scale=-1:720 output. Set the video bitrate in bit/s for CBR (Constant Bit Rate) mode. Most Linux distributions already have FFmpeg installed, but it can often be easily installed through their respective package managers.
On MacOS, you can alternatively install it using brew. If you are on Windows, first download FFmpeg and add its directory to your PATH environment variable. While this may seem intimidating, FFmpeg can offer more flexibility than other tools, such as being able to re-encode multiple video files more quickly and easily. FFmpeg is a program used through a command-line interface (CLI), meaning it does not have any graphical user interface (GUI) by itself. Compress video in bitrate and resolution PHP & FFmpeg When it comes in compressing the video, there are many options which can be adopted. Compressing will save you some space in your system. This section will show you how you can use FFmpeg to reduce video file size. You can compress the video by bitrate and by resolution in PHP and FFmpeg. Lastly, pick the file location you want to save your result to, then click Start Encode.Įncoding and saving the video Using FFmpeg
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