# /root/ffmpeg/ffmpeg -i "rtsp://10.1.1.108/axis-media/media.amp" -i "rtsp://10.1.1.109/axis-media/media.amp" http://localhost:8090/feed1.ffm
ffmpeg version N-56047-gb042712 Copyright (c) 2000-2013 the FFmpeg developers
  built on Sep  4 2013 20:06:44 with gcc 4.6.3 (Gentoo 4.6.3 p1.13, pie-0.5.2)
  configuration:
  libavutil      52. 43.100 / 52. 43.100
  libavcodec     55. 31.101 / 55. 31.101
  libavformat    55. 16.101 / 55. 16.101
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 83.102 /  3. 83.102
  libswscale      2.  5.100 /  2.  5.100
  libswresample   0. 17.103 /  0. 17.103
Input #0, rtsp, from 'rtsp://10.1.1.108/axis-media/media.amp':
  Metadata:
    title           : Media Presentation
  Duration: N/A, start: 0.033356, bitrate: N/A
    Stream #0:0: Video: h264 (Baseline), yuvj420p(pc, bt709), 1280x720 [SAR 1:1 DAR 16:9], 30 tbr, 90k tbn, 180k tbc
Input #1, rtsp, from 'rtsp://10.1.1.109/axis-media/media.amp':
  Metadata:
    title           : Media Presentation
  Duration: N/A, start: 0.126594, bitrate: N/A
    Stream #1:0: Audio: aac, 32000 Hz, mono, fltp
[swscaler @ 0x15d0040] deprecated pixel format used, make sure you did set range correctly
Output #0, ffm, to 'http://localhost:8090/feed1.ffm':
  Metadata:
    title           : Media Presentation
    creation_time   : now
    encoder         : Lavf55.16.101
    Stream #0:0: Audio: mp2, 44100 Hz, mono, s16, 64 kb/s
    Stream #0:1: Video: mpeg1video, yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 640 kb/s, 1000k tbn, 30 tbc
Stream mapping:
  Stream #1:0 -> #0:0 (aac -> mp2)
  Stream #0:0 -> #0:1 (h264 -> mpeg1video)
Press [q] to stop, [?] for help
[h264 @ 0x15f0c20] RTP: missed 18 packets
frame=  375 fps= 31 q=31.0 size=    1400kB time=00:00:12.43 bitrate= 922.4kbits/s dup=6 drop=0