[000][17:19:28][naquad@nq:~]$ ffmpeg -i rtsp://a.b.c.d:554/ipcam_h264.sdp -vcodec copy -acodec mp3 -ac 1 -ar 44100 -f flv -y out.flv
ffmpeg version 1.2 Copyright (c) 2000-2013 the FFmpeg developers
  built on Apr  1 2013 09:33:17 with gcc 4.7.2 (GCC)
  configuration: --prefix=/usr --disable-debug --disable-static --enable-avresample --enable-dxva2 --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libv4l2 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-postproc --enable-runtime-cpudetect --enable-shared --enable-vdpau --enable-version3 --enable-x11grab
  libavutil      52. 18.100 / 52. 18.100
  libavcodec     54. 92.100 / 54. 92.100
  libavformat    54. 63.104 / 54. 63.104
  libavdevice    54.  3.103 / 54.  3.103
  libavfilter     3. 42.103 /  3. 42.103
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
[h264 @ 0xe558a0] Missing reference picture, default is 0
[h264 @ 0xe558a0] decode_slice_header error
[rtsp @ 0xe52fc0] max_analyze_duration 5000000 reached at 5000000 microseconds
[rtsp @ 0xe52fc0] decoding for stream 0 failed
[rtsp @ 0xe52fc0] Estimating duration from bitrate, this may be inaccurate
Guessed Channel Layout for  Input Stream #0.1 : mono
Input #0, rtsp, from 'rtsp://a.b.c.d:554/ipcam_h264.sdp':
  Metadata:
    title           : IPCam
  Duration: N/A, start: 0.000000, bitrate: 64 kb/s
    Stream #0:0: Video: h264 (Baseline), yuv420p, 640x480, 90k tbr, 90k tbn, 180k tbc
    Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
Output #0, flv, to 'out.flv':
  Metadata:
    title           : IPCam
    encoder         : Lavf54.63.104
    Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv420p, 640x480, q=2-31, 1k tbn, 90k tbc
    Stream #0:1: Audio: mp3 ([2][0][0][0] / 0x0002), 44100 Hz, mono, s16p
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (pcm_alaw -> libmp3lame)
Press [q] to stop, [?] for help
rtsp://a.b.c.d:554/ipcam_h264.sdp: Connection timed out.9kbits/s
frame=  105 fps=2.6 q=-1.0 Lsize=     297kB time=00:00:25.02 bitrate=  97.1kbits/s
video:85kB audio:194kB subtitle:0 global headers:0kB muxing overhead 6.200911%