However, in my opinion, these are sane defaults for most video where the focus is to find a compromise between good video quality and file sie. avi or usign a different CRF or audio bitrate. You can easily adapt this command to your liking – for example, by encoding. mp4 For x265, the default CRF is 28: >ffmpeg -i. for i in *.avi do ffmpeg -i '$i' -c:v libx265 -crf 26 -c:a libopus -b:a 56k -frame_duration 60 '$.mkv' doneįrom mymovie.avi, this script will produce, saving approximately 70% of the filesize (that, of course, depends heavily on the video itself). 265 (also known as HEVC) which are formats for encoding video (the x264. avi file in the current directory, assuming that all files are non-interlaced (this affects the ffmpeg flags – see our previous post for more details).

The following example command (for Linux shell such as bash) re-encodes every.

In many cases, you want to re-encode all files in a directory. The i flag tells FFMPEG what the input frames are. I’m setting the framerate to 60 frames per second. In our previous post How to re-encode videos as H.265 & opus using ffmpeg for archival we listed ffmpeg commands to re-encode video files to H.265 for archival purposes. Using the libvpx-vp9 encoder, creating a video is as easy as this: ffmpeg -framerate 60 -i frame05d.tif -pixfmt yuva420p -an output.webm.

Ffmpeg encode h265