I have to convert 76 mp4 files to webm for the purpose of a website that uses HTML5 videos. I'm talking about 10 Gb of mp4 files... I know I can simply ask ffmpeg to do that using:
ffmpeg -i input_file.mp4 output_file.webm
Of course I'll do it recursively by:
find ./ -name '*.mp4' -exec bash -c 'ffmpeg -i "$0" "${0%%.mp4}.webm"' {} \;
I even tried something I found somewhere on the internet:
ffmpeg -i input_file.mp4 -cpu-used 4 -threads 8 output_file.webm
But the thing is that it won't take me less than a week!!! What am I doing wrong? Is there any possible way to speed that up? If I convert to ogg will I gain on speed? Please help!!!