Converting media formats from one to the other using ffmpeg and/or ImageMagick

 Where $i is the original name and $nn is the new name:

Animated gif to mp4:

ffmpeg -i $i -movflags faststart -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" $nn.mp4

WAV to mp3:
In case you have to deal with windows 3.11 users. Just kidding, any windows users.

ffmpeg -i $i -vn -ar 44100 -ac 2 -b:a 192k $nn.mp3

Any video to mp4:
This is useful if you get MOV files from your phone as they are 3x bigger than mp4:

ffmpeg -i $i $-vn -acodec libmp3lame -ac 2 -ab 160k -ar 48000 $nn.mp4

PNG to jpg:
This is useful if you get lots of screenshots on your phone as the screenshots are 10x bigger than jpg:

    convert $i $nn.jpg


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