./ffmpeg -f fbdev -vcodec rawvideo -i /dev/graphics/fb0 -vcodec libx264 -acodec adpcm_swf -ar 44100 -r 25 -f flv rtmp://live.justin.tv/app


ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
  built on Jun 18 2012 15:09:13 with gcc 4.4.3
  configuration: --enable-version3 --disable-pthreads --enable-libx264 --disable-yasm --disable-asm --enable-gpl --enable-nonfree --disable-doc --enable-small --target-os=linux --disable-debug --disable-stripping --enable-cross-compile --cross-prefix=/home/rohit/Downloads/android-ndk-r7b/toolchains/x86-4.4.3/prebuilt/linux-x86/bin/i686-android-linux- --sysroot=/home/rohit/Downloads/android-ndk-r7b/platforms/android-9/arch-x86 --arch=x86 --extra-cflags=-I/home/rohit/android-ec2/streamserver/newffmpeg/libs/x264-snapshot-20120616-2245/ --extra-ldflags=-L/home/rohit/android-ec2/streamserver/newffmpeg/libs/x264-snapshot-20120616-2245/
  libavutil      51. 54.100 / 51. 54.100
  libavcodec     54. 23.100 / 54. 23.100
  libavformat    54.  6.100 / 54.  6.100
  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
[fbdev @ 0x8c1c470] Framebuffer pixel format not supported.
/dev/graphics/fb0: Invalid argument