ffmpeg mp3 strip other streams

gistfile1.txt

> ffmpeg -i test.mp3 -map 0:0 -codec copy -f mp3 pipe:1 | ffprobe -show_format pipe:0
ffmpeg version N-55127-g11ace70 Copyright (c) 2000-2013 the FFmpeg developers
  built on Aug  6 2013 17:19:55 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  configuration: --enable-libmp3lame
  libavutil      52. 40.100 / 52. 40.100
  libavcodec     55. 19.100 / 55. 19.100
  libavformat    55. 12.102 / 55. 12.102
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 82.100 /  3. 82.100
  libswscale      2.  4.100 /  2.  4.100
  libswresample   0. 17.103 /  0. 17.103
ffprobe version N-55127-g11ace70 Copyright (c) 2007-2013 the FFmpeg developers
  built on Aug  6 2013 17:19:55 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  configuration: --enable-libmp3lame
  libavutil      52. 40.100 / 52. 40.100
  libavcodec     55. 19.100 / 55. 19.100
  libavformat    55. 12.102 / 55. 12.102
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 82.100 /  3. 82.100
  libswscale      2.  4.100 /  2.  4.100
  libswresample   0. 17.103 /  0. 17.103
Input #0, mp3, from 'test.mp3':
  Metadata:
    artist          : Nine Inch Nails
    album           : The Slip
    encoded_by      : LAME
    title           : 999,999
    composer        : Trent Reznor
    track           : 1/10
    disc            : 1/1
    date            : 2008
  Duration: 00:01:25.13, start: 0.000000, bitrate: 294 kb/s
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 216 kb/s
    Stream #0:1: Video: mjpeg, yuvj444p, 1200x1200 [SAR 300:300 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
    Metadata:
      title           :
      comment         : Other
    Stream #0:2: Video: mjpeg, yuvj444p, 1200x1200 [SAR 300:300 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
    Metadata:
      title           :
      comment         : Other
Output #0, mp3, to 'pipe:1':
  Metadata:
    TPE1            : Nine Inch Nails
    TALB            : The Slip
    TENC            : LAME
    TIT2            : 999,999
    TCOM            : Trent Reznor
    TRCK            : 1/10
    TPOS            : 1/1
    TDRL            : 2008
    TSSE            : Lavf55.12.102
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, 216 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
Input #0, mp3, from 'pipe:0':
  Metadata:
    artist          : Nine Inch Nails
    album           : The Slip
    encoded_by      : LAME
    title           : 999,999
    composer        : Trent Reznor
    track           : 1/10
    disc            : 1/1
    date            : 2008
    encoder         : Lavf55.12.102
  Duration: N/A, start: 0.000000, bitrate: 169 kb/s
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 169 kb/s
[FORMAT]
filename=pipe:0
nb_streams=1
nb_programs=0
format_name=mp3
format_long_name=MP2/3 (MPEG audio layer 2/3)
start_time=0.000000
duration=N/A
size=N/A
bit_rate=169911
TAG:artist=Nine Inch Nails
TAG:album=The Slip
TAG:encoded_by=LAME
TAG:title=999,999
TAG:composer=Trent Reznor
TAG:track=1/10
TAG:disc=1/1
TAG:date=2008
TAG:encoder=Lavf55.12.102
[/FORMAT]