I installed cuDNN
Then, I reinstalled ffmpeg from GitHub.
./configure --enable-gpl --enable-postproc --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libx264 --enable-libspeex --enable-shared --enable-pthreads --enable-libopenjpeg --enable-nonfree
pastebin com/Dp0Bfp0E
pastebin com/ekY3Aj2X