Resize videos to h640

ffmpeg.md

#by width

for i in *.mp4; do; ffmpeg -i $i -vf scale=800:-1 ${i%.*}_w800.mp4; done

#by height

for i in *.mp4; do; ffmpeg -i $i -vf scale=-2:800 ${i%.*}_h800.mp4; done

ffmpeg -i file.wmv -vcodec libx264 -acodec aac file_enc.mp4

`` ffmpeg -framerate 30 -pattern_type glob -i '*.png' c:v libx264 -pix_fmt yuv420p out.mp4