ffmpeg webcam I/O problem compilation

ffmpeg webcam I/O problem
http://ubuntuforums.org/showthread.php?t=1414326

More information about video4Linux2
http://ubuntuforums.org/showthread.php?t=1564565

Using ffmpeg libs in C
http://ubuntuforums.org/showthread.php?t=128247

C++ example and bash command under Linux
http://www-i6.informatik.rwth-aachen.de/~dreuw/videotools.html

Philippe Dreuw's Computer Vision Main Site:
http://www-i6.informatik.rwth-aachen.de/~dreuw/index.php

ffmpeg documentation
http://ffmpeg.org/ffmpeg.html#toc-Examples-6

ffmpeg tricks
http://segfault.in/2010/10/ffmpeg-tricks-you-should-know-about/