root@ns3043829:~# ffprobe rtmp://xxx
ffprobe version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2007-2017 the FFmpeg devel                                                                                                                                                             opers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-                                                                                                                                                             ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/inc                                                                                                                                                             lude/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-s                                                                                                                                                             tripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enabl                                                                                                                                                             e-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass -                                                                                                                                                             -enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-li                                                                                                                                                             bflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-                                                                                                                                                             libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenj                                                                                                                                                             peg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger                                                                                                                                                              --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enabl                                                                                                                                                             e-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libv                                                                                                                                                             px --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enab                                                                                                                                                             le-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 -                                                                                                                                                             -enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-li                                                                                                                                                             bopencv
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
Metadata:
  Server                NGINX RTMP (github.com/arut/nginx-rtmp-module)
  width                 1920.00
  height                1080.00
  displayWidth          1920.00
  displayHeight         1080.00
  duration              0.00
  framerate             30.00
  fps                   30.00
  videodatarate         11000.00
  videocodecid          0.00
  audiodatarate         192.00
  audiocodecid          0.00
Input #0, live_flv, from 'rtmp://xxx'                                                                                                                                                             :
  Metadata:
    Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
    displayWidth    : 1920
    displayHeight   : 1080
    fps             : 30
    profile         :
    level           :
  Duration: 00:00:00.00, start: 716.984000, bitrate: N/A
    Stream #0:0: Video: h264 (Main), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1126                                                                                                                                                             4 kb/s, 30.30 fps, 30 tbr, 1k tbn, 60 tbc
    Stream #0:1: Audio: aac (LC), 44100 Hz, stereo, fltp, 196 kb/s