[FFmpeg-user] randomly named png to mp4: ffmpeg

[Mike]

>I tried:
>
 >   ffmpeg -r 4 -i a.png b.png c.png -c:v libx264 -r 4 -pix_fmt yuv420p
out.mp4

Try
 ffmpeg -r 4 -i a.png -i b.png -i c.png -c:v libx264 -r 4 -pix_fmt yuv420p
out.mp4