ffmpeg -i rtmp://192.168.0.16/live/test -c:v libx264 -crf 18 -vf format=yuv420p /usr/local/nginx/html/video/output.mp4
ffmpeg version 2.4.3-1ubuntu1~trusty6 Copyright (c) 2000-2014 the FFmpeg developers
  built on Nov 22 2014 17:07:19 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  configuration: --prefix=/usr --extra-version='1ubuntu1~trusty6' --build-suffix=-ffmpeg --toolchain=hardened --extra-cflags= --extra-cxxflags= --libdir=/usr/lib/x86_64-linux-gnu --shlibdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --enable-shared --disable-stripping --enable-avresample --enable-avisynth --enable-fontconfig --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-opengl --enable-x11grab --enable-libxvid --enable-libx265 --enable-libdc1394 --enable-libiec61883 --enable-libzvbi --enable-libzmq --enable-frei0r --enable-libx264 --enable-libsoxr --enable-openal --enable-libopencv
  libavutil      54.  7.100 / 54.  7.100
  libavcodec     56.  1.100 / 56.  1.100
  libavformat    56.  4.101 / 56.  4.101
  libavdevice    56.  0.100 / 56.  0.100
  libavfilter     5.  1.100 /  5.  1.100
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  0.100 /  3.  0.100
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  0.100 / 53.  0.100
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             60.00
  fps                   60.00
  videodatarate         4882.00
  videocodecid          7.00
  audiodatarate         0.00
  audiocodecid          0.00
  profile
  level
[live_flv @ 0x24f5a20] Could not find codec parameters for stream 1 (Audio: none, 0 channels): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, live_flv, from 'rtmp://192.168.0.16/live/test':
  Metadata:
    Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
    displayWidth    : 1920
    displayHeight   : 1080
    fps             : 60
    profile         :
    level           :
  Duration: 00:00:00.00, start: 647.000000, bitrate: N/A
    Stream #0:0: Video: h264 (Constrained Baseline), yuv420p, 1920x1080, 4999 kb/s, 62.50 fps, 60 tbr, 1k tbn, 120 tbc
    Stream #0:1: Audio: none, 0 channels
[libx264 @ 0x2526540] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
[libx264 @ 0x2526540] profile High, level 4.2
[libx264 @ 0x2526540] 264 - core 142 r2389 956c8d8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=18.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '/usr/local/nginx/html/video/output.mp4':
  Metadata:
    Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
    displayWidth    : 1920
    displayHeight   : 1080
    fps             : 60
    profile         :
    level           :
    encoder         : Lavf56.4.101
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080, q=-1--1, 60 fps, 15360 tbn, 60 tbc
    Metadata:
      encoder         : Lavc56.1.100 libx264
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame=   54 fps=0.0 q=26.0 size=     112kB time=00:00:00.03 bitrate=27427.2kbitsframe=   69 fps= 67 q=26.0 size=     308kB time=00:00:00.28 bitrate=8902.4kbits/frame=   94 fps= 61 q=26.0 size=     390kB time=00:00:00.70 bitrate=4569.7kbits/frame=  106 fps= 51 q=26.0 size=     550kB time=00:00:00.90 bitrate=5006.4kbits/frame=  119 fps= 46 q=26.0 size=     759kB time=00:00:01.11 bitrate=5565.3kbits/frame=  136 fps= 43 q=26.0 size=     958kB time=00:00:01.40 bitrate=5603.4kbits/frame=  140 fps= 30 q=-1.0 Lsize=    1614kB time=00:00:02.30 bitrate=5748.9kbits/s
video:1612kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.104902%
[libx264 @ 0x2526540] frame I:1     Avg QP:15.49  size: 88693
[libx264 @ 0x2526540] frame P:112   Avg QP:17.86  size: 13584
[libx264 @ 0x2526540] frame B:27    Avg QP:20.21  size:  1494
[libx264 @ 0x2526540] consecutive B-frames: 74.3%  0.0%  0.0% 25.7%
[libx264 @ 0x2526540] mb I  I16..4: 75.5%  4.2% 20.3%
[libx264 @ 0x2526540] mb P  I16..4:  6.4%  1.9%  0.8%  P16..4: 22.5%  1.6%  1.3%  0.0%  0.0%    skip:65.6%
[libx264 @ 0x2526540] mb B  I16..4:  0.3%  0.1%  0.0%  B16..8: 18.1%  0.3%  0.0%  direct: 0.8%  skip:80.5%  L0:61.3% L1:38.2% BI: 0.5%
[libx264 @ 0x2526540] 8x8 transform intra:19.5% inter:27.7%
[libx264 @ 0x2526540] coded y,uvDC,uvAC intra: 26.3% 32.7% 3.6% inter: 5.9% 4.5% 0.1%
[libx264 @ 0x2526540] i16 v,h,dc,p: 32% 24% 28% 16%
[libx264 @ 0x2526540] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 23% 47%  2%  0%  0%  0%  0%  1%
[libx264 @ 0x2526540] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 41% 29% 22%  1%  1%  1%  2%  1%  1%
[libx264 @ 0x2526540] i8c dc,h,v,p: 49% 20% 25%  5%
[libx264 @ 0x2526540] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x2526540] ref P L0: 80.6%  1.5% 12.0%  5.9%
[libx264 @ 0x2526540] ref B L0: 77.8% 19.9%  2.3%
[libx264 @ 0x2526540] ref B L1: 86.7% 13.3%
[libx264 @ 0x2526540] kb/s:5658.46
Received signal 2: terminating.