I am trying to create a video on my web application using images as input by the user. I am using ffmpeg currently to encode the output. However, my system becomes unresponsive each time I execute the command.
I am using exec command of php and following is my ffmpeg command.
ffmpeg -i bg2.png -i overlay1.png -filter_complex "[1:v]scale=0:0[fg]; [0:v][fg]overlay=y=-'t*w*0.1':shortest=1[v]" -map "[v]" -t 10 out.mkv
I'd appreciate if you could also share some good resources to learn more about ffmpeg on web and other alternatives.
Multimedia manipulation is an expensive process. Sounds to me like you need a beefier server. If that isn't possible, experiment with nice values.