Video to GIF

  SET filters="fps=%4,scale=%3:-1:flags=lanczos"
  ffmpeg -v warning -i %1 -vf "%filters%,palettegen" -y palette.png
  ffmpeg -v warning -i %1 -i palette.png -lavfi "%filters% \[x\]; \[x\]\[1:v\] paletteuse" -y %2
  DEL palette.png

  togif.bat <input.mp4> <output.gif> <width> <fps>

Extract audio from a video

  ffmpeg -i "path\to\my_input_video_file.mp4" "path\to\my_output_audio_only.wav"

Extract specific video and audio stream

  ffmpeg -i "path\to\my_input_video_file.mp4" -map 0:0 -c copy video.mp4 -map 0:1 -c copy audio0.m4a -map 0:2 -c copy audio1.m4a

Concatenate two or more video clips

  (echo file 'first file.mp4' & echo file 'second file.mp4' )>list.txt
  ffmpeg -safe 0 -f concat -i list.txt -c copy output.mp4

Convert 10-bit H.265 to 10-bit H.264

  ffmpeg -i input -c:v libx264 -crf 18 -c:a copy output.mkv

Convert 10-bit H.265 to 8-bit H.265

  ffmpeg -i input -c:v libx265 -vf format=yuv420p -c:a copy output.mkv

Convert 10-bit H.265 to 8-bit H.264

  ffmpeg -i input -c:v libx264 -crf 18 -vf format=yuv420p -c:a copy output.mkv