`Unrecognized option ‘preset’` in avconv/ffmpeg+x264
This is because libx264 or the extra codecs are not installed. Install with
sudo apt-get install -y x264 libx264-123 libx264-dev libavcodec-extra-531
This is because libx264 or the extra codecs are not installed. Install with
sudo apt-get install -y x264 libx264-123 libx264-dev libavcodec-extra-531
It solved my problem.
Thanks :)
solved mine too ubuntu 13.10