ffmpeg command examples

ffmpeg -y -i input.mp4 
-c:a libfaac -ac 2 -ab 192k -ar 44100 -c:v libx264 -profile:v high -level 4.0 -preset slow -b:v 3000k -maxrate 3000k -bufsize 3000k -filter:v scale=-1:720 -f mp4 -r 25 -g 25 -pix_fmt yuv420p encode_720high.mp4 
-c:a libfaac -ac 2 -ab 192k -ar 44100 -c:v libx264 -profile:v high -level 4.0 -preset medium -b:v 2000k -maxrate 2000k -bufsize 2000k -filter:v scale=-1:720 -f mp4 -r 25 -g 25 -pix_fmt yuv420p encode_720low.mp4 
-c:a libfaac -ac 2 -ab 160k -ar 44100 -c:v libx264 -profile:v main -level 3.0 -preset slow -b:v 1500k -maxrate 1500k -bufsize 1500k -filter:v scale=-1:576 -f mp4 -r 25 -g 25 -pix_fmt yuv420p  encode_576high.mp4
-c:a libfaac -ac 2 -ab 160k -ar 44100 -c:v libx264 -profile:v main -level 3.0 -preset fast -b:v 500k -maxrate 500k -bufsize 500k -filter:v scale=-1:576 -f mp4 -r 25 -g 25 -pix_fmt yuv420p  encode_576low.mp4
-c:a libfaac -ac 2 -ab 128k -ar 44100 -c:v libx264 -profile:v baseline -level 3.0 -preset slow -b:v 800k -maxrate 800k -bufsize 800k -filter:v scale=-1:288 -f mp4 -r 25 -g 25 -pix_fmt yuv420p  encode_288high.mp4
-c:a libfaac -ac 2 -ab 128k -ar 44100 -c:v libx264 -profile:v baseline -level 3.0 -preset fast -b:v 300k -maxrate 300k -bufsize 300k -filter:v scale=-1:288 -f mp4 -r 25 -g 25 -pix_fmt yuv420p  encode_288low.mp4
-c:a libfaac -ac 2 -ab 96k -ar 44100 -c:v libx264 -profile:v baseline -level 3.0 -preset fast -b:v 550k -maxrate 550k -bufsize 550k -filter:v scale=-1:180 -f mp4 -r 25 -g 25 -pix_fmt yuv420p  encode_180high.mp4
-c:a libfaac -ac 2 -ab 96k -ar 44100 -c:v libx264 -profile:v baseline -level 3.0 -preset fast -b:v 200k -maxrate 200k -bufsize 200k -filter:v scale=-1:180 -f mp4 -r 25 -g 25 -pix_fmt yuv420p  encode_180low.mp4 
-ss 5 -vsync vfr -frames:v 3 -qscale:v 2 -filter:v scale=-1:500,thumbnail=200 input_%d.jpg
      
MP4Box -dash 2000 -rap -frag-rap -profile onDemand -out 1234563134_pap_small_d.mpd -mpd-title title 
encode_720high.mp4#video encode_720low.mp4#video encode_576high.mp4#video encode_576low.mp4#video encode_288high.mp4#video encode_288low.mp4#video encode_180high.mp4#video encode_180low.mp4#video  
encode_720high.mp4#audio encode_720low.mp4#audio encode_576high.mp4#audio encode_576low.mp4#audio encode_288high.mp4#audio encode_288low.mp4#audio encode_180high.mp4#audio encode_180low.mp4#audio

# Using imagemagic to help process
http://kwlug.org/node/854
# Some cool image magic scripts: http://www.fmwconcepts.com/imagemagick/autocolor/index.php

Compressor: https://help.apple.com/compressor/mac/4.2/#/cpsrcbbd612d


ffmpeg Filters: https://ffmpeg.org/ffmpeg-filters.html

Resizes 
https://gist.github.com/bmatherly/e39fb68c876161d5b17b

some math for  scaling:  http://superuser.com/questions/547296/resizing-videos-with-ffmpeg-avconv-to-fit-into-static-sized-player