jean-christophe@debian:~$ ffmpeg -fflags +genpts+igndts -f x11grab -vsync 0 -r 30 -s 1680x1050 -i  :0.0+0,0 -vcodec h264 -f jack -ac 2 -r:a 48000 -i screencast -acodec pcm_s16le -r:v 30 -vsync 2 -async 1 -map 0:0,1,0 -map 1:0 -preset ultrafast -qp 0 "/home/jean-christophe/Bureau/essai-screencast.avi"
WARNING: gnome-keyring:: couldn't connect to: /home/jean-christophe/.cache/keyring-BNhywk/pkcs11: No such file or directory
ffmpeg version 1.0.7 Copyright (c) 2000-2013 the FFmpeg developers
  built on Jul 19 2013 07:14:44 with gcc 4.7 (Debian 4.7.2-5)
  configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libfdk-aac --enable-libdc1394 --disable-altivec --dis  libavutil      51. 73.101 / 51. 73.101
  libavcodec     54. 59.100 / 54. 59.100
  libavformat    54. 29.104 / 54. 29.104
  libavdevice    54.  2.101 / 54.  2.101
  libavfilter     3. 17.100 /  3. 17.100
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
[x11grab @ 0x145cf80] device: :0.0+0,0 -> display: :0.0 x: 0 y: 0 width: 1680 height: 1050
[x11grab @ 0x145cf80] shared memory extension found
[x11grab @ 0x145cf80] Estimating duration from bitrate, this may be inaccurate
Input #0, x11grab, from ':0.0+0,0':
  Duration: N/A, start: 1377519402.836181, bitrate: 1693440 kb/s
    Stream #0:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1680x1050, 1693440 kb/s, 30 tbr, 1000k tbn, 30 tbc
Cannot lock down 82274202 byte memory area (Cannot allocate memory)
[jack @ 0x1465aa0] JACK client registered and activated (rate=48000Hz, buffer_size=1024 frames)
[jack @ 0x1465aa0] Estimating duration from bitrate, this may be inaccurate
Guessed Channel Layout for  Input Stream #1.0 : stereo
Input #1, jack, from 'screencast':
  Duration: N/A, start: 1377519402.914209, bitrate: 3072 kb/s
    Stream #1:0: Audio: pcm_f32le, 48000 Hz, stereo, flt, 3072 kb/s
-async is forwarded to lavfi similarly to -af aresample=min_comp=0.001:min_hard_comp=0.100000.
Output #0, avi, to '/home/jean-christophe/Bureau/essai-screencast.avi':
  Metadata:
    ISFT            : Lavf54.29.104
    Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 1680x1050, q=2-31, 200 kb/s, 30 tbn, 30 tbc
    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo -> mpeg4)
  Stream #1:0 -> #0:1 (pcm_f32le -> pcm_s16le)
Press [q] to stop, [?] for help
frame=   17 fps=0.0 q=31.0 size=     670kB time=00:00:00.56 bitrate=9684.4kbits/frame=   32 fps= 32 q=31.0 size=     872kB time=00:00:01.06 bitrate=6697.3kbits/frame=   47 fps= 31 q=31.0 size=    1077kB time=00:00:01.56 bitrate=5631.4kbits/frame=   63 fps= 31 q=31.0 size=    1373kB time=00:00:02.10 bitrate=5356.3kbits/frame=   78 fps= 31 q=31.0 size=    1574kB time=00:00:02.60 bitrate=4959.8kbits/frame=   93 fps= 30 q=31.0 size=    1779kB time=00:00:03.10 bitrate=4700.1kbits/frame=  108 fps= 30 q=31.0 size=    1986kB time=00:00:03.60 bitrate=4520.3kbits/frame=  124 fps= 30 q=31.0 size=    2281kB time=00:00:04.13 bitrate=4520.7kbits/frame=  139 fps= 30 q=31.0 size=    2492kB time=00:00:04.63 bitrate=4405.5kbits/frame=  154 fps= 30 q=31.0 size=    2698kB time=00:00:05.13 bitrate=4304.9kbits/frame=  170 fps= 30 q=31.0 size=    2997kB time=00:00:05.66 bitrate=4332.6kbits/frame=  185 fps= 30 q=31.0 size=    3202kB time=00:00:06.16 bitrate=4253.8kbits/frame=  200 fps= 30 q=31.0 size=    3411kB time=00:00:06.66 bitrate=4190.9kbits/frame=  215 fps= 30 q=31.0 size=    3614kB time=00:00:07.16 bitrate=4131.4kbits/frame=  230 fps= 30 q=31.0 size=    3916kB time=00:00:07.66 bitrate=4184.6kbits/frame=  245 fps= 30 q=31.0 size=    4134kB time=00:00:08.16 bitrate=4147.0kbits/frame=  260 fps= 30 q=31.0 size=    4344kB time=00:00:08.66 bitrate=4105.9kbits/frame=  275 fps= 30 q=31.0 size=    4561kB time=00:00:09.16 bitrate=4075.9kbits/frame=  291 fps= 30 q=31.0 size=    4874kB time=00:00:09.70 bitrate=4115.9kbits/frame=  306 fps= 30 q=31.0 size=    5091kB time=00:00:10.20 bitrate=4088.8kbits/frame=  321 fps= 30 q=31.0 size=    5306kB time=00:00:10.70 bitrate=4062.3kbits/frame=  336 fps= 30 q=31.0 size=    5522kB time=00:00:11.20 bitrate=4038.9kbits/frame=  352 fps= 30 q=31.0 size=    5842kB time=00:00:11.73 bitrate=4078.8kbits/frame=  367 fps= 30 q=31.0 size=    6063kB time=00:00:12.23 bitrate=4060.0kbits/frame=  382 fps= 30 q=31.0 size=    6283kB time=00:00:12.73 bitrate=4041.9kbits/frame=  398 fps= 30 q=31.0 size=    6602kB time=00:00:13.26 bitrate=4076.9kbits/frame=  413 fps= 30 q=31.0 size=    6823kB time=00:00:13.76 bitrate=4060.0kbits/frame=  428 fps= 30 q=31.0 size=    7038kB time=00:00:14.26 bitrate=4041.5kbits/frame=  443 fps= 30 q=31.0 size=    7258kB time=00:00:14.76 bitrate=4026.6kbits/frame=  458 fps= 30 q=31.0 size=    7582kB time=00:00:15.26 bitrate=4068.5kbits/frame=  473 fps= 30 q=31.0 size=    7798kB time=00:00:15.76 bitrate=4051.9kbits/frame=  489 fps= 30 q=31.0 size=    8019kB time=00:00:16.30 bitrate=4030.2kbits/frame=  504 fps= 30 q=31.0 size=    8239kB time=00:00:16.80 bitrate=4017.3kbits/frame=  519 fps= 30 q=31.0 size=    8563kB time=00:00:17.30 bitrate=4054.9kbits/frame=  534 fps= 30 q=31.0 size=    8779kB time=00:00:17.80 bitrate=4040.1kbits/frame=  549 fps= 30 q=31.0 size=    8998kB time=00:00:18.30 bitrate=4028.0kbits/frame=  564 fps= 30 q=31.0 size=    9215kB time=00:00:18.80 bitrate=4015.2kbits/frame=  579 fps= 30 q=31.0 size=    9538kB time=00:00:19.30 bitrate=4048.5kbits/frame=  595 fps= 30 q=31.0 size=    9759kB time=00:00:19.83 bitrate=4030.7kbits/frame=  610 fps= 30 q=31.0 size=    9978kB time=00:00:20.33 bitrate=4020.1kbits/frame=  625 fps= 30 q=24.8 size=   10194kB time=00:00:20.83 bitrate=4008.6kbits/frame=  640 fps= 30 q=31.0 size=   10519kB time=00:00:21.33 bitrate=4039.3kbits/frame=  655 fps= 30 q=31.0 size=   10736kB time=00:00:21.83 bitrate=4028.0kbits/frame=  670 fps= 30 q=31.0 size=   10956kB time=00:00:22.33 bitrate=4018.7kbits/frame=  685 fps= 30 q=24.8 size=   11272kB time=00:00:22.83 bitrate=4044.2kbits/frame=  701 fps= 30 q=31.0 size=   11497kB time=00:00:23.36 bitrate=4030.8kbits/frame=  716 fps= 30 q=31.0 size=   11714kB time=00:00:23.86 bitrate=4020.6kbits/frame=  731 fps= 30 q=31.0 size=   11934kB time=00:00:24.36 bitrate=4012.1kbits/frame=  746 fps= 30 q=31.0 size=   12258kB time=00:00:24.86 bitrate=4038.3kbits/frame=  762 fps= 30 q=31.0 size=   12480kB time=00:00:25.40 bitrate=4025.0kbits/frame=  777 fps= 30 q=31.0 size=   12700kB time=00:00:25.90 bitrate=4016.9kbits/frame=  792 fps= 30 q=31.0 size=   12917kB time=00:00:26.40 bitrate=4008.1kbits/frame=  808 fps= 30 q=31.0 size=   13246kB time=00:00:26.93 bitrate=4028.9kbits/frame=  823 fps= 30 q=31.0 size=   13462kB time=00:00:27.43 bitrate=4019.9kbits/frame=  838 fps= 30 q=31.0 size=   13682kB time=00:00:27.93 bitrate=4012.5kbits/frame=  853 fps= 30 q=24.8 size=   13897kB time=00:00:28.43 bitrate=4004.0kbits/frame=  867 fps= 30 q=31.0 Lsize=   14241kB time=00:00:28.90 bitrate=4036.9kbits/s
video:8771kB audio:5408kB subtitle:0 global headers:0kB muxing overhead 0.438155%
Received signal 2: terminating.
jean-christophe@debian:~$