$ ffmpeg -rtsp_transport tcp -i "rtsp://10.10.9.168:554?meta=1" -codec copy -map 0:0 -f data data1 -map 0:1 -f data data2
ffmpeg version 2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
  built on Oct 23 2014 14:05:40 with Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.4.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-libvpx
  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
Input #0, rtsp, from 'rtsp://10.10.9.168:554?meta=1 -codec':
  Metadata:
    title           : LIVE VIEW
  Duration: N/A, start: 0.020056, bitrate: N/A
    Stream #0:0: Video: h264 (Main), yuv420p, 704x576 [SAR 12:11 DAR 4:3], 50 fps, 50 tbr, 90k tbn, 180k tbc
    Stream #0:1: Data: none
[NULL @ 0x7fcd39807800] Unable to find a suitable output format for 'copy'
copy: Invalid argument