FFmpeg fails to stream to FMS 4.5

FFmpeg fails to stream to FMS 4.5

I'm attempting to use ffmpeg to transcode an input video from whatever
format it's in to an mp4 with h.264 video and MP3 auido and have the
output go directly to FMS 4.5 using rtmp so the video will stream right
after being transcoded. My ffmpeg command is:
ffmpeg -re -y -i /videos/to/be/transcoded/001 -c:v libx264 -b:v 480k -c:a
libmp3lame -b:a 128k -f mp4 "rtmp://localhost/live/livestream"Output:
ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
built on May 10 2013 15:14:14 with gcc 4.4.6 (GCC) 20120305 (Red Hat
4.4.6-4)
configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64
--mandir=/usr/share/man --enable-shared --enable-runtime-cpudetect
--enable-gpl --enable-version3 --enable-postproc --enable-avfilter
--enable-pthreads --enable-x11grab --enable-vdpau --disable-avisynth
--enable-frei0r --enable-libopencv --enable-libdc1394 --enable-libgsm
--enable-libmp3lame --enable-libnut --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp
--enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx
--enable-libx264 --enable-libxavs --enable-libxvid --extra-cflags='-O2
-g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --disable-stripping
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
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'/global/xcodes/1/transcodeTest/vidInput/001':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2013-03-31 19:51:36
Duration: 00:01:19.18, start: 0.000000, bitrate: 708 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 /
0x31637661), yuv420p, 640x360, 610 kb/s, 25 fps, 25 tbr, 50 tbn, 50
tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo,
fltp, 95 kb/s
Metadata:
creation_time : 2013-03-31 19:51:37
handler_name : IsoMedia File Produced by Google, 5-11-2011
[libx264 @ 0x1a82ec0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x1a82ec0] profile High, level 3.0
[libx264 @ 0x1a82ec0] 264 - core 130 - H.264/MPEG-4 AVC codec - Copyleft
2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=3
deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00
mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0
deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=24
lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0
bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=480
ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[mp4 @ 0x1a826c0] muxer does not support non seekable output
Output #0, mp4, to 'rtmp://172.30.3.20/live/livestream':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
encoder : Lavf54.63.104
Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p,
640x360, q=-1--1, 480 kb/s, 90k tbn, 25 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: mp3 (i[0][0][0] / 0x0069), 44100 Hz, stereo,
fltp, 128 kb/s
Metadata:
creation_time : 2013-03-31 19:51:37
handler_name : IsoMedia File Produced by Google, 5-11-2011
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> libx264)
Stream #0:1 -> #0:1 (aac -> libmp3lame)
Could not write header for output file #0 (incorrect codec parameters ?):
Operation not permitted
The error I keep getting is "Could not write header for output file #0
(incorrect codec parameters?): Operation not permitted". But if I run this
same command and have ffmpeg output to a new video file I don't get this
error