ffmpeg -i rtsp://acameraip.com:7070/stream1 -vcodec libx264 -vf scale=-1:480 -preset faster -b:v 1500k -maxrate 1500k -bufsize 5000k -g 60 -vprofile baseline -level 2.1 -acodec aac -ab 64000 -ar 48000 -ac 2 -vbsf h264_mp4toannexb -strict experimental -f mpegts udp://wowzaip:10000?pkt_size=1316
ffmpeg version N-63893-gc69defd Copyright (c) 2000-2014 the FFmpeg developers
  built on Jul 16 2014 05:13:25 with gcc 4.6 (Debian 4.6.3-1)
  configuration: --prefix=/root/ffmpeg-static/32bit --arch=x86_32 --extra-cflags='-m32 -I/root/ffmpeg-static/32bit/include -static' --extra-ldflags='-m32 -L/root/ffmpeg-static/32bit/lib -static' --extra-libs='-lxml2 -lexpat -lfreetype' --enable-static --disable-shared --disable-ffserver --disable-doc --enable-bzlib --enable-zlib --enable-postproc --enable-runtime-cpudetect --enable-libx264 --enable-gpl --enable-libtheora --enable-libvorbis --enable-libmp3lame --enable-gray --enable-libass --enable-libfreetype --enable-libopenjpeg --enable-libspeex --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-version3 --enable-libvpx
  libavutil      52. 89.100 / 52. 89.100
  libavcodec     55. 66.101 / 55. 66.101
  libavformat    55. 43.100 / 55. 43.100
  libavdevice    55. 13.101 / 55. 13.101
  libavfilter     4.  8.100 /  4.  8.100
  libswscale      2.  6.100 /  2.  6.100
  libswresample   0. 19.100 /  0. 19.100
  libpostproc    52.  3.100 / 52.  3.100
[h264 @ 0xb9e88a0] number of reference frames (0+2) exceeds max (1; probably corrupt input), discarding one
Input #0, rtsp, from 'rtsp://acameraip.com:7070/stream1':
  Metadata:
    title           : Session streamed by RTP/RTSP server
    comment         : ACTi.COM Streaming Media v
  Duration: N/A, start: 0.302667, bitrate: N/A
    Stream #0:0: Video: h264 (High), yuv420p, 1280x720, 7.50 fps, 7.50 tbr, 90k tbn, 15 tbc
Codec AVOption ab (set bitrate (in bits/s)) specified for output file #0 (udp://wowzaip:10000?pkt_size=1316) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
[libx264 @ 0xba09a60] width not divisible by 2 (853x480)
Output #0, mpegts, to 'udp://wowzaip:10000?pkt_size=1316':
  Metadata:
    title           : Session streamed by RTP/RTSP server
    comment         : ACTi.COM Streaming Media v
    Stream #0:0: Video: h264, q=2-31, 128 kb/s, 7.50 fps, 90k tbn
    Metadata:
      encoder         : Lavc55.66.101 libx264
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height