[FFmpeg-user] Empty file when capturing stream from Wowza

[Grant Curtis]

I'm streaming from FMLE to Wowza, and then capturing the stream with ffmpeg.

I'm able to watch the stream if I open up VLC player, however running the
below command results in an empty file.

ffmpeg.exe -report -ss 0 -i
rtmp://localhost:1935/scheduler/cumin/cumin_1000 -y -b:v 1000k -r 29.97
-threads 4 -hls_time 8 -hls_list_size 0 -bsf:v h264_mp4toannexb -c:v copy
-c:a copy cumin_1000.m3u8
ffmpeg started on 2016-07-06 at 16:32:36
Report written to "ffmpeg-20160706-163236.log"
ffmpeg version N-80801-gc0cb53c Copyright (c) 2000-2016 the FFmpeg
developers
  built with gcc 5.4.0 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth
--enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
--enable-iconv --enable-libass --enable-libbluray --enable-libbs2b
--enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm
--enable-libilbc --enable-libmodplug --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-libopus --enable-librtmp --enable-libschroedinger
--enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
--enable-libzimg --enable-lzma --enable-decklink --enable-zlib
  libavutil      55. 27.100 / 55. 27.100
  libavcodec     57. 48.101 / 57. 48.101
  libavformat    57. 40.101 / 57. 40.101
  libavdevice    57.  0.102 / 57.  0.102
  libavfilter     6. 46.102 /  6. 46.102
  libswscale      4.  1.100 /  4.  1.100
  libswresample   2.  1.100 /  2.  1.100
  libpostproc    54.  0.100 / 54.  0.100
Metadata:
  author                dsf
  presetname            Custom
  creationdate          Wed Jul 06 16:32:28 2016
  videodevice           BisonCam, NB Pro
  framerate             29.97
  width                 640.00
  height                480.00
  videocodecid          avc1
  videodatarate         1000.00
  avclevel              31.00
  avcprofile            66.00
  videokeyframe_frequency4.00
  audiodevice           Microphone (3- C-Media USB Headphone Set  )
  audiosamplerate       22050.00
  audiochannels         1.00
  audioinputvolume      75.00
  audiocodecid          .mp3
  audiodatarate         48.00
[flv @ 0000000000737e20] video stream discovered after head already parsed
[flv @ 0000000000737e20] audio stream discovered after head already parsed
Input #0, flv, from 'rtmp://localhost:1935/scheduler/cumin/cumin_1000':
  Metadata:
    author          : dsf
    copyright       :
    description     :
    keywords        :
    rating          :
    title           :
    presetname      : Custom
    creationdate    : Wed Jul 06 16:32:28 2016
                    :
    videodevice     : BisonCam, NB Pro
    avclevel        : 31
    avcprofile      : 66
    videokeyframe_frequency: 4
    audiodevice     : Microphone (3- C-Media USB Headphone Set  )
    audiochannels   : 1
    audioinputvolume: 75
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: h264 (Baseline), yuv420p(tv), 640x480 [SAR 1:1 DAR
4:3], 30.30 fps, 30 tbr, 1k tbn, 60 tbc
    Stream #0:1: Audio: mp3, 22050 Hz, mono, s16p, 48 kb/s
[hls @ 0000000002f24820] Using AVStream.codec to pass codec parameters to
muxers is deprecated, use AVStream.codecpar instead.
    Last message repeated 1 times
Output #0, hls, to 'cumin_1000.m3u8':
  Metadata:
    author          : dsf
    copyright       :
    description     :
    keywords        :
    rating          :
    title           :
    presetname      : Custom
    creationdate    : Wed Jul 06 16:32:28 2016
                    :
    videodevice     : BisonCam, NB Pro
    avclevel        : 31
    avcprofile      : 66
    videokeyframe_frequency: 4
    audiodevice     : Microphone (3- C-Media USB Headphone Set  )
    audiochannels   : 1
    audioinputvolume: 75
    encoder         : Lavf57.40.101
    Stream #0:0: Video: h264, yuv420p(tv), 640x480 [SAR 1:1 DAR 4:3],
q=2-31, 1000 kb/s, 30.30 fps, 30 tbr, 90k tbn, 29.97 tbc
    Stream #0:1: Audio: mp3, 22050 Hz, mono, 48 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=-1.0 Lsize=N/A time=00:00:00.00 bitrate=N/A speed=
0x
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
Output file is empty, nothing was encoded (check -ss / -t / -frames
parameters if used)

What am I missing?