$ $FFB/ffmpeg -f alsa -ar:1 44100 -ac 2 -i pulse -f x11grab -r 30 -s 1920x1080 -i :0.0 -threads 0 output.flv
ffmpeg version git-2013-08-04-61af627 Copyright (c) 2000-2013 the FFmpeg developers
  built on Feb 19 2014 04:33:30 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-4)
  configuration: --prefix=/mnt/video/ffmpeg/build --extra-cflags=-I/mnt/video/ffmpeg/build/include --extra-ldflags=-L/mnt/video/ffmpeg/build/lib --bindir=/mnt/video/ffmpeg/bin --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libfreetype --enable-libspeex --enable-libtheora --enable-x11grab
  libavutil      52. 40.100 / 52. 40.100
  libavcodec     55. 20.100 / 55. 20.100
  libavformat    55. 13.101 / 55. 13.101
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 82.100 /  3. 82.100
  libswscale      2.  4.100 /  2.  4.100
  libswresample   0. 17.103 /  0. 17.103
  libpostproc    52.  3.100 / 52.  3.100
Guessed Channel Layout for  Input Stream #0.0 : stereo
Input #0, alsa, from 'pulse':
  Duration: N/A, start: 1396121968.364818, bitrate: 1411 kb/s
    Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
[x11grab @ 0x26115e0] device: :0.0 -> display: :0.0 x: 0 y: 0 width: 1920 height: 1080
[x11grab @ 0x26115e0] shared memory extension found
Input #1, x11grab, from ':0.0':
  Duration: N/A, start: 1396121968.508470, bitrate: 1990656 kb/s
    Stream #1:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1920x1080, 1990656 kb/s, 30 tbr, 1000k tbn, 30 tbc
File 'output.flv' already exists. Overwrite ? [y/N] y
[swscaler @ 0x25d1040] deprecated pixel format used, make sure you did set range correctly
Output #0, flv, to 'output.flv':
  Metadata:
    encoder         : Lavf55.13.101
    Stream #0:0: Video: flv1 (flv) ([2][0][0][0] / 0x0002), yuv420p, 1920x1080, q=2-31, 200 kb/s, 1k tbn, 30 tbc
    Stream #0:1: Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 44100 Hz, stereo, s16p
Stream mapping:
  Stream #1:0 -> #0:0 (rawvideo -> flv)
  Stream #0:0 -> #0:1 (pcm_s16le -> libmp3lame)
Press [q] to stop, [?] for help
[libmp3lame @ 0x2624d80] Queue input is backward in time.20 bitrate=2970.8kbits/s    
    Last message repeated 1 times
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144208, current: 144201; changing to 144208. This may result in incorrect timestamps in the output file.
[libmp3lame @ 0x2624d80] Queue input is backward in time
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144208, current: 144202; changing to 144208. This may result in incorrect timestamps in the output file.
[libmp3lame @ 0x2624d80] Queue input is backward in time
    Last message repeated 3 times
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144216; changing to 144223. This may result in incorrect timestamps in the output file.
[libmp3lame @ 0x2624d80] Queue input is backward in time
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144207; changing to 144223. This may result in incorrect timestamps in the output file.
[libmp3lame @ 0x2624d80] Queue input is backward in time
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144197; changing to 144223. This may result in incorrect timestamps in the output file.
[libmp3lame @ 0x2624d80] Queue input is backward in time
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144187; changing to 144223. This may result in incorrect timestamps in the output file.
[libmp3lame @ 0x2624d80] Queue input is backward in time.70 bitrate=2961.2kbits/s    
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144178; changing to 144223. This may result in incorrect timestamps in the output file.
[libmp3lame @ 0x2624d80] Queue input is backward in time
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144172; changing to 144223. This may result in incorrect timestamps in the output file.
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144160; changing to 144223. This may result in incorrect timestamps in the output file.
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144150; changing to 144223. This may result in incorrect timestamps in the output file.
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144142; changing to 144223. This may result in incorrect timestamps in the output file.
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144138; changing to 144223. This may result in incorrect timestamps in the output file.
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144139; changing to 144223. This may result in incorrect timestamps in the output file.
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144150; changing to 144223. This may result in incorrect timestamps in the output file.
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144168; changing to 144223. This may result in incorrect timestamps in the output file.
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144183; changing to 144223. This may result in incorrect timestamps in the output file.
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144195; changing to 144223. This may result in incorrect timestamps in the output file.
[flv @ 0x2623cc0] Non-monotonous DTS in output stream 0:1; previous: 144223, current: 144213; changing to 144223. This may result in incorrect timestamps in the output file.
frame= 7265 fps= 30 q=31.0 Lsize=   87631kB time=00:04:02.16 bitrate=2964.4kbits/s    
video:83587kB audio:3785kB subtitle:0 global headers:0kB muxing overhead 0.296131%