Most of the movies you see in Blu-ray are usually in 720P or in 1080P, these are also known as high definition videos HD. So in the near future, this quality most probably be removed at all from the quality format table. In fact, there are very few devices with such small screen are left today. Similarly, the least quality video having lowest bitrate value is 144P and it looks good on small screens only. Not 3D of course, but talking in terms of quality. 4K display also known as the retina display because it gives the clear picture of video as you see with naked eye. The highest quality video having highest bitrate value is 4K as of writing this today. Lower size video will consume less bandwidth and transfer faster than large size videos. Decreasing the quality of video will help you in easily transfer the file over the internet. Changing bitrate will result in decreasing the quality of video, thus will reduce the size of video. The most basic and effective one is to decrease the bitrate of video. When it comes in compressing the video, there are many options which can be adopted.

Compress video in bitrate and resolution – PHP & FFmpeg

Compressing will save you some space in your system. You can compress the video by bitrate and by resolution in PHP and FFmpeg.

Ffmpeg compress video