BM Command

ffmpeg -re -f decklink -i 'DeckLink Mini Recorder@5'  -c:v libx264 -c:a libfdk_aac -b:v 2m -b:a 96k -preset veryfast -maxrate 3000k -bufsize 6000k  -profile:v baseline -level 3.0 -r 30 -t 100 test.mp4
ffmpeg version 2.6.git Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  configuration: --prefix=/home/oruuser/ffmpeg/ffmpeg_build --extra-cflags=-I/home/oruuser/ffmpeg/ffmpeg_build/include --extra-ldflags=-L/home/oruuser/ffmpeg/ffmpeg_build/lib --extra-cflags=-I/home/oruuser/ffmpeg/ffmpeg_build/include/blackmagic --extra-ldflags=-L/home/oruuser/ffmpeg/ffmpeg_build/lib --bindir=/home/oruuser/ffmpeg/bin --extra-libs=-ldl --enable-decklink --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libx264 --enable-nonfree
  libavutil      54. 22.100 / 54. 22.100
  libavcodec     56. 34.100 / 56. 34.100
  libavformat    56. 30.100 / 56. 30.100
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 13.101 /  5. 13.101
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  3.100 / 53.  3.100
[decklink @ 0x370f320] Found Decklink mode 1920 x 1080 with rate 25.00
[decklink @ 0x370f320] Frame received (#1) - No input signal detected - Frames dropped 1
Guessed Channel Layout for  Input Stream #0.0 : stereo
Input #0, decklink, from 'DeckLink Mini Recorder@5':
  Duration: N/A, start: 0.000000, bitrate: 1536 kb/s
    Stream #0:0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
    Stream #0:1: Video: rawvideo (UYVY / 0x59565955), uyvy422, 1920x1080, -4 kb/s, 25 tbr, 1000k tbn, 25 tbc