ffmpeg output

+ bash -c 'ffmpeg -xerror -y -f image2 -i "/home/test/images/testapp4fccc364c8765405729953/frame_%d.jpg" -vcodec mpeg4 -b 524288 -r 15 "/home/test/images/testapp4fccc364c8765405729953.mp4" </dev/null'
ffmpeg version N-41239-g1bf22c3 Copyright (c) 2000-2012 the FFmpeg developers
  built on Jun  2 2012 18:34:22 with gcc 4.1.2 20080704 (Red Hat 4.1.2-52)
  configuration: --enable-gpl --enable-version3 --disable-debug --enable-libmp3lame --enable-pthreads --enable-libx264 --enable-postproc --enable-libvorbis --enable-avfilter --enable-libvpx --enable-libvo-aacenc
  libavutil      51. 56.100 / 51. 56.100
  libavcodec     54. 23.100 / 54. 23.100
  libavformat    54.  6.101 / 54.  6.101
  libavdevice    54.  0.100 / 54.  0.100
  libavfilter     2. 77.100 /  2. 77.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
[image2 @ 0x12fa9140] max_analyze_duration 5000000 reached at 5000000
Input #0, image2, from '/home/test/images/testapp4fccc364c8765405729953/frame_%d.jpg':
  Duration: 00:00:06.04, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: mjpeg, yuvj420p, 640x480 [SAR 1:1 DAR 4:3], 25 fps, 25 tbr, 25 tbn, 25 tbc
Please use -b:a or -b:v, -b is ambiguous
[buffer @ 0x13183b80] w:640 h:480 pixfmt:yuvj420p tb:1/25 sar:1/1 sws_param:flags=2
[buffersink @ 0x12fa8b60] No opaque field provided
[format @ 0x131847e0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_null_0' and the filter 'format'
[scale @ 0x12facd80] w:640 h:480 fmt:yuvj420p sar:1/1 -> w:640 h:480 fmt:yuv420p sar:1/1 flags:0x4
Output #0, mp4, to '/home/test/images/testapp4fccc364c8765405729953.mp4':
  Metadata:
    encoder         : Lavf54.6.101
    Stream #0:0: Video: mpeg4 ( [0][0][0] / 0x0020), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 524 kb/s, 15 tbn, 15 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg -> mpeg4)
Press [q] to stop, [?] for help
frame=   92 fps= 88 q=5.0 Lsize=     529kB time=00:00:06.13 bitrate= 706.6kbits/s dup=0 drop=59
video:528kB audio:0kB global headers:0kB muxing overhead 0.223682%