ffmpeg -i 01\ Conquistador\ \(Mono\).mp3 -i 01\ Conquistador\ \(Mono\).mp
3 -map 0:0 -map 0:1 -acodec copy Conquistador.swf
ffmpeg version 2.3.3 Copyright (c) 2000-2014 the FFmpeg developers
  built on Aug 24 2014 00:30:44 with gcc 4.8 (Debian 4.8.2-1)
  configuration: --enable-version3 --enable-nonfree --enable-gpl --enable-libopenjpeg --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc --enable-libfdk-aac --enable-libmp3lame --enable-libvpx --enable-libwavpack --enable-libilbc --enable-libaacplus --enable-libvorbis --enable-libspeex --enable-libtheora --enable-libxvid --enable-libfaac --enable-libgsm --enable-bzlib --enable-postproc --enable-avfilter --enable-libbluray --enable-libx264 --enable-libzvbi --prefix=/usr --enable-pic --enable-libgme --enable-libass --extra-cflags=-fPIC
  libavutil      52. 92.100 / 52. 92.100
  libavcodec     55. 69.100 / 55. 69.100
  libavformat    55. 48.100 / 55. 48.100
  libavdevice    55. 13.102 / 55. 13.102
  libavfilter     4. 11.100 /  4. 11.100
  libswscale      2.  6.100 /  2.  6.100
  libswresample   0. 19.100 /  0. 19.100
  libpostproc    52.  3.100 / 52.  3.100
[mp3 @ 0x387cd60] Estimating duration from bitrate, this may be inaccurate
Input #0, mp3, from '01 Conquistador (Mono).mp3':
  Metadata:
    artist          : Procol Harum
    album           : 1967-01 - Procol Harum... Plus
    track           : 1/20
    TPA             : 1/1
    TCM             : Gary Brooker/Keith Reid
    encoded_by      : iTunes v7.1.1.5
    title           : Conquistador (Mono)
    date            : 1998
  Duration: 00:02:45.91, start: 0.000000, bitrate: 160 kb/s
    Stream #0:0: Audio: mp3, 44100 Hz, mono, s16p, 160 kb/s
    Stream #0:1: Video: mjpeg, yuvj444p(pc, bt470bg), 300x299 [SAR 100:100 DAR 300:299], 90k tbr, 90k tbn, 90k tbc
    Metadata:
      title           :
      comment         : Other
[mp3 @ 0x389e6c0] Estimating duration from bitrate, this may be inaccurate
Input #1, mp3, from '01 Conquistador (Mono).mp3':
  Metadata:
    artist          : Procol Harum
    album           : 1967-01 - Procol Harum... Plus
    track           : 1/20
    TPA             : 1/1
    TCM             : Gary Brooker/Keith Reid
    encoded_by      : iTunes v7.1.1.5
    title           : Conquistador (Mono)
    date            : 1998
  Duration: 00:02:45.91, start: 0.000000, bitrate: 160 kb/s
    Stream #1:0: Audio: mp3, 44100 Hz, mono, s16p, 160 kb/s
    Stream #1:1: Video: mjpeg, yuvj444p(pc, bt470bg), 300x299 [SAR 100:100 DAR 300:299], 90k tbr, 90k tbn, 90k tbc
    Metadata:
      title           :
      comment         : Other
File 'Conquistador.swf' already exists. Overwrite ? [y/N] y
[swscaler @ 0x385c0c0] deprecated pixel format used, make sure you did set range correctly
[swf @ 0x389f4e0] Frame rate very high for a muxer not efficiently supporting it.
Please consider specifying a lower framerate, a different muxer or -vsync 2
Output #0, swf, to 'Conquistador.swf':
  Metadata:
    artist          : Procol Harum
    album           : 1967-01 - Procol Harum... Plus
    track           : 1/20
    TPA             : 1/1
    TCM             : Gary Brooker/Keith Reid
    encoded_by      : iTunes v7.1.1.5
    title           : Conquistador (Mono)
    date            : 1998
    encoder         : Lavf55.48.100
    Stream #0:0: Audio: mp3, 44100 Hz, mono, 160 kb/s
    Stream #0:1: Video: flv1 (flv), yuv420p, 300x299 [SAR 1:1 DAR 300:299], q=2-31, 200 kb/s, 90k fps, 90k tbn, 90k tbc
    Metadata:
      title           :
      comment         : Other
      encoder         : Lavc55.69.100 flv
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (mjpeg (native) -> flv1 (flv))
Press [q] to stop, [?] for help
[swf @ 0x389f4e0] audio fifo too small to mux audio essence
av_interleaved_write_frame(): Operation not permitted
[swf @ 0x389f4e0] audio fifo too small to mux audio essence
frame=    1 fps=0.0 q=6.3 Lsize=      39kB time=00:00:13.32 bitrate=  24.2kbits/s
video:39kB audio:260kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Conversion failed!