ffmpeg version 0.10.3 Copyright (c) 2000-2012 the FFmpeg developers
  built on Mar  3 2013 17:50:24 with gcc 4.6.3
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-g++ --ar=x86_64-pc-linux-gnu-ar --optflags='-march=athlon64 -O2 -pipe -msse -msse2 -msse3 -mmmx -m3dnow' --extra-cflags='-march=athlon64 -O2 -pipe -msse -msse2 -msse3 -mmmx -m3dnow' --extra-cxxflags='-march=athlon64 -O2 -pipe -msse -msse2 -msse3 -mmmx -m3dnow' --disable-static --enable-gpl --enable-version3 --enable-postproc --enable-avfilter --disable-stripping --disable-debug --disable-doc --disable-network --disable-vaapi --disable-ffplay --enable-libmp3lame --enable-libvo-amrwbenc --enable-libx264 --disable-indev=v4l --disable-indev=oss --disable-indev=jack --enable-x11grab --disable-outdev=oss --disable-outdev=sdl --enable-libopencore-amrwb --enable-libopencore-amrnb --disable-amd3dnow --disable-amd3dnowext --disable-altivec --disable-avx --disable-mmx2 --disable-ssse3 --disable-vis --disable-neon --cpu=athlon64 --enable-hardcoded-tables
  libavutil      51. 35.100 / 51. 35.100
  libavcodec     53. 61.100 / 53. 61.100
  libavformat    53. 32.100 / 53. 32.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 61.100 /  2. 61.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0.  6.100 /  0.  6.100
  libpostproc    52.  0.100 / 52.  0.100
[x11grab @ 0x175e400] device: :0.0 -> display: :0.0 x: 0 y: 0 width: 1920 height: 1080
[x11grab @ 0x175e400] shared memory extension found
[x11grab @ 0x175e400] Estimating duration from bitrate, this may be inaccurate
Input #0, x11grab, from ':0.0':
  Duration: N/A, start: 1363113971.323200, bitrate: 1327104 kb/s
    Stream #0:0: Video: rawvideo (BGRA / 0x41524742), bgra, 1920x1080, 1327104 kb/s, 20 tbr, 1000k tbn, 20 tbc
[alsa @ 0x176eae0] Estimating duration from bitrate, this may be inaccurate
Input #1, alsa, from 'hw:0,2':
  Duration: N/A, start: 1363113971.347054, bitrate: N/A
    Stream #1:0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
Incompatible pixel format 'bgra' for codec 'libx264', auto-selecting format 'yuv420p'
[buffer @ 0x176fde0] w:1920 h:1080 pixfmt:bgra tb:1/1000000 sar:0/1 sws_param:
[buffersink @ 0x176f840] auto-inserting filter 'auto-inserted scale 0' between the filter 'src' and the filter 'out'
[scale @ 0x17768f0] w:1920 h:1080 fmt:bgra -> w:1920 h:1080 fmt:yuv420p flags:0x4
[libx264 @ 0x17750b0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64
[libx264 @ 0x17750b0] profile High, level 4.0
[libx264 @ 0x17750b0] 264 - core 120 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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=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=20 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, matroska, to 'recorddesktop20130312-19.46.11.mkv':
  Metadata:
    encoder         : Lavf53.32.100
    Stream #0:0: Video: h264, yuv420p, 1920x1080, q=-1--1, 1k tbn, 20 tbc
    Stream #0:1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo -> libx264)
  Stream #1:0 -> #0:1 (pcm_s16le -> pcm_s16le)
Press [q] to stop, [?] for help
ALSA buffer xrun.18 q=28.0 size=       1kB time=00:00:00.00 bitrate=   0.0kbits/s
ALSA buffer xrun.16 q=28.0 size=     705kB time=00:00:00.66 bitrate=8654.0kbits/s
ALSA buffer xrun.15 q=28.0 size=     865kB time=00:00:01.36 bitrate=5189.0kbits/s
ALSA buffer xrun.15 q=28.0 size=     929kB time=00:00:01.71 bitrate=4443.5kbits/s
Application provided invalid, non monotonically increasing dts to muxer in stream 1: 2683 >= 2683
av_interleaved_write_frame(): Invalid argument