/home/carlos/bin/ffmpeg -rtsp_flags listen -f rtsp  -probesize 50M -analyzeduration 100M  -i rtsp://10.0.1.185:557/live -vcodec copy -acodec copy video.mp4
rm: cannot remove 'video.mp4': No such file or directory
ffmpeg version N-82319-g18108f3 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  configuration: --prefix=/home/carlos/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/carlos/ffmpeg_build/include --extra-ldflags=-L/home/carlos/ffmpeg_build/lib --bindir=/home/carlos/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
  libavutil      55. 36.100 / 55. 36.100
  libavcodec     57. 66.101 / 57. 66.101
  libavformat    57. 57.100 / 57. 57.100
  libavdevice    57.  2.100 / 57.  2.100
  libavfilter     6. 66.100 /  6. 66.100
  libswscale      4.  3.100 /  4.  3.100
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100
[udp @ 0x2bd7820] bind failed: Address already in use
[rtsp @ 0x2baf7a0] Could not find codec parameters for stream 1 (Video: h264, none): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, rtsp, from 'rtsp://10.0.1.185:557/live':
  Metadata:
    title           : Unnamed
    comment         : N/A
  Duration: N/A, bitrate: N/A
    Stream #0:0: Audio: aac, 8000 Hz, mono, fltp
    Stream #0:1: Video: h264, none, 90k tbr, 90k tbn, 180k tbc
[mp4 @ 0x2c076e0] track 0: codec frame size is not set
Output #0, mp4, to 'video.mp4':
  Metadata:
    title           : Unnamed
    comment         : N/A
    encoder         : Lavf57.57.100
    Stream #0:0: Audio: aac ([64][0][0][0] / 0x0040), 8000 Hz, mono
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
size=       5kB time=00:00:05.27 bitrate=   7.6kbits/s speed=0.877x
video:0kB audio:4kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 24.831713%