ffmpeg version 2.1.3 Copyright (c) 2000-2013 the FFmpeg developers
  built on Jan 15 2014 20:51:13 with gcc 4.8.2 (GCC) 20131219 (prerelease)
  configuration: --prefix=/usr --disable-debug --disable-static --enable-avresample --enable-dxva2 --enable-fontconfig --enable-gnutls --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libv4l2 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-pic --enable-postproc --enable-runtime-cpudetect --enable-shared --enable-swresample --enable-vdpau --enable-version3 --enable-x11grab
  libavutil      52. 48.101 / 52. 48.101
  libavcodec     55. 39.101 / 55. 39.101
  libavformat    55. 19.104 / 55. 19.104
  libavdevice    55.  5.100 / 55.  5.100
  libavfilter     3. 90.100 /  3. 90.100
  libavresample   1.  1.  0 /  1.  1.  0
  libswscale      2.  5.101 /  2.  5.101
  libswresample   0. 17.104 /  0. 17.104
  libpostproc    52.  3.100 / 52.  3.100
[x11grab @ 0x133f920] device: :0.0+0,0 -> display: :0.0 x: 0 y: 0 width: 1600 height: 900
[x11grab @ 0x133f920] shared memory extension found
Input #0, x11grab, from ':0.0+0,0':
  Duration: N/A, start: 1392001701.632002, bitrate: 1382400 kb/s
    Stream #0:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1600x900, 1382400 kb/s, 30 tbr, 1000k tbn, 30 tbc
Guessed Channel Layout for  Input Stream #1.0 : stereo
Input #1, alsa, from 'plughw:0,0':
  Duration: N/A, start: 1392001701.652249, bitrate: 1536 kb/s
    Stream #1:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Please use -b:a or -b:v, -b is ambiguous
[swscaler @ 0x139dea0] deprecated pixel format used, make sure you did set range correctly
[libx264 @ 0x1373140] VBV maxrate unspecified, assuming CBR
[libx264 @ 0x1373140] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX XOP FMA4 FMA3 LZCNT BMI1
[libx264 @ 0x1373140] profile High, level 3.1
[libx264 @ 0x1373140] 264 - core 138 r2363 c628e3b - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=2 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=6 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=9 lookahead_threads=1 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=1 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=30 rc=cbr mbtree=1 bitrate=712 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=712 vbv_bufsize=2048 nal_hrd=none ip_ratio=1.40 aq=1:1.00
Output #0, flv, to 'rtmp://live.twitch.tv/app/live_26905884_620LjTQpxffWUM4M55hAZC7VKKOBEs':
  Metadata:
    encoder         : Lavf55.19.104
    Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 1024x576, q=-1--1, 712 kb/s, 1k tbn, 30 tbc
    Stream #0:1: Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 44100 Hz, stereo, s16p
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo -> libx264)
  Stream #1:0 -> #0:1 (pcm_s16le -> libmp3lame)
Press [q] to stop, [?] for help
[alsa @ 0x135f720] ALSA buffer xrun.
[alsa @ 0x135f720] ALSA buffer xrun.   0kB time=00:00:00.00 bitrate=3056.0kbits/s
[Parsed_overlay_4 @ 0x132db00] [framesync @ 0x132dbe8] Buffer queue overflow, dropping.
    Last message repeated 20 times
[alsa @ 0x135f720] ALSA buffer xrun. 829kB time=00:00:11.92 bitrate= 569.5kbits/s
[Parsed_overlay_4 @ 0x132db00] [framesync @ 0x132dbe8] Buffer queue overflow, dropping.
    Last message repeated 797 times
[alsa @ 0x135f720] ALSA buffer xrun.233kB time=00:00:21.03 bitrate= 480.0kbits/s
[Parsed_overlay_4 @ 0x132db00] [framesync @ 0x132dbe8] Buffer queue overflow, dropping.
    Last message repeated 22 times
[Parsed_overlay_4 @ 0x132db00] [framesync @ 0x132dbe8] Buffer queue overflow, dropping.
    Last message repeated 1198 times
[flv @ 0x1372ba0] Failed to update header with correct duration.te= 378.6kbits/s
[flv @ 0x1372ba0] Failed to update header with correct filesize.
frame= 1872 fps= 29 q=-1.0 Lsize=    3180kB time=00:01:06.68 bitrate= 390.6kbits/s
video:2206kB audio:902kB subtitle:0 global headers:0kB muxing overhead 2.299133%
[libx264 @ 0x1373140] frame I:8     Avg QP: 4.13  size:156402
[libx264 @ 0x1373140] frame P:472   Avg QP: 3.45  size:  1987
[libx264 @ 0x1373140] frame B:1392  Avg QP:12.81  size:    50
[libx264 @ 0x1373140] consecutive B-frames:  0.9%  0.0%  0.0% 99.1%
[libx264 @ 0x1373140] mb I  I16..4: 36.6% 31.9% 31.5%
[libx264 @ 0x1373140] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  5.1%  0.1%  0.2%  0.0%  0.0%    skip:94.5%
[libx264 @ 0x1373140] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.1%  0.0%  0.0%  direct: 0.0%  skip:99.9%  L0:48.0% L1:51.4% BI: 0.6%
[libx264 @ 0x1373140] 8x8 transform intra:31.5% inter:42.5%
[libx264 @ 0x1373140] coded y,uvDC,uvAC intra: 95.5% 11.0% 8.6% inter: 0.8% 0.3% 0.2%
[libx264 @ 0x1373140] i16 v,h,dc,p:  4% 10% 68% 18%
[libx264 @ 0x1373140] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  9%  7% 62%  5%  4%  3%  3%  4%  4%
[libx264 @ 0x1373140] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 15% 40%  7%  6%  5%  5%  4%  5%
[libx264 @ 0x1373140] i8c dc,h,v,p: 91%  6%  2%  1%
[libx264 @ 0x1373140] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x1373140] ref P L0: 92.4%  7.6%
[libx264 @ 0x1373140] ref B L0: 92.5%  7.5%
[libx264 @ 0x1373140] ref B L1: 99.5%  0.5%
[libx264 @ 0x1373140] kb/s:289.50