christianselig

# Convert from H264 to H265
ffmpeg -i in.mov -c:v libx265 -an -x265-params crf=20 output.mp4

# Tag as HVC instead of HEV1 so iOS can play it
ffmpeg -i output.mp4 -vcodec copy -acodec copy -tag:v hvc1 output2.mp4

# Bonus: it can take a second to play (no more than H264) so here's how to generate 
# a thumbnail of the first frame to embed in your view as a placeholder.
ffmpeg -i output2.mp4 -vf "select=eq(n\,34)" -vframes 1 thumbnail.png

steven2358

FFmpeg cheat sheet

A list of useful commands for the FFmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion