ffmpeg mpg to ogg/theora

ffmpeg -i http://127.0.0.1:8090/test.mpg http://127.0.0.1:8090/good.ffm
ffmpeg version git-2012-10-29-67420b3 Copyright (c) 2000-2012 the FFmpeg developers
  built on Oct 29 2012 15:58:30 with gcc 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1)
  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3
  libavutil      52.  1.100 / 52.  1.100
  libavcodec     54. 69.100 / 54. 69.100
  libavformat    54. 35.100 / 54. 35.100
  libavdevice    54.  3.100 / 54.  3.100
  libavfilter     3. 20.106 /  3. 20.106
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 16.100 /  0. 16.100
  libpostproc    52.  1.100 / 52.  1.100
[mpeg2video @ 0xa544860] mpeg_decode_postinit() failure
    Last message repeated 10 times
[mpeg @ 0xa522500] max_analyze_duration 5000000 reached at 5015467
[mpeg @ 0xa522500] Estimating duration from bitrate, this may be inaccurate
Input #0, mpeg, from 'http://127.0.0.1:8090/test.mpg':
  Duration: N/A, start: 11804.053244, bitrate: 832 kb/s
    Stream #0:0[0x1c0]: Audio: mp2, 44100 Hz, mono, s16, 32 kb/s
    Stream #0:1[0x1e0]: Video: mpeg1video, yuv420p, 640x480 [SAR 1:1 DAR 4:3], 800 kb/s, 15 fps, 15 tbr, 90k tbn, 15 tbc
Output #0, ffm, to 'http://127.0.0.1:8090/good.ffm':
  Metadata:
    creation_time   : now
    encoder         : Lavf54.35.100
    Stream #0:0: Audio: vorbis, 44100 Hz, stereo, fltp, 64 kb/s
    Stream #0:1: Video: theora, yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=3-30, 384 kb/s, 1000k tbn, 15 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (mp2 -> libvorbis)
  Stream #0:1 -> #0:1 (mpeg1video -> libtheora)
Press [q] to stop, [?] for help
av_interleaved_write_frame(): Connection reset by peer