ffmpeg -f gdigrab -r 30 -i desktop -f mpegts udp://192.168.1.5:5000
ffmpeg version N-81947-gc45ba26 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.4.0 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
  libavutil      55. 32.100 / 55. 32.100
  libavcodec     57. 61.100 / 57. 61.100
  libavformat    57. 51.103 / 57. 51.103
  libavdevice    57.  0.102 / 57.  0.102
  libavfilter     6. 63.100 /  6. 63.100
  libswscale      4.  1.100 /  4.  1.100
  libswresample   2.  2.100 /  2.  2.100
  libpostproc    54.  0.100 / 54.  0.100
[gdigrab @ 00000000001866c0] Capturing whole desktop as 1366x768x32 at (0,0)
[gdigrab @ 00000000001866c0] Stream #0: not enough frames to estimate rate; consider increasing probesize
Input #0, gdigrab, from 'desktop':
  Duration: N/A, start: 1481530407.768480, bitrate: 1007137 kb/s
    Stream #0:0: Video: bmp, bgra, 1366x768, 1007137 kb/s, 30 fps, 1000k tbr, 1000k tbn, 1000k tbc
Output #0, mpegts, to 'udp://192.168.1.5:5000':
  Metadata:
    encoder         : Lavf57.51.103
    Stream #0:0: Video: mpeg2video (Main), yuv420p, 1366x768, q=2-31, 200 kb/s, 30 fps, 90k tbn, 30 tbc
    Metadata:
      encoder         : Lavc57.61.100 mpeg2video
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
Stream mapping:
  Stream #0:0 -> #0:0 (bmp (native) -> mpeg2video (native))
Press [q] to stop, [?] for help
frame=  357 fps=8.1 q=31.0 size=    4659kB time=00:00:11.80 bitrate=3234.4kbits/s speed=0.268x