As a Percentage of the Original Size (Default) If you prefer 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 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.
Out of these two encoding methods, H.265 yields better compression, especially at higher resolutions such as 1080p or 4k. We use two popular video encoding methods that are supported by most modern devices and browsers: H.264 and H.265. Which Encoder Is Best for Compressing Video?