Fixes icc warning #188: enumerated type mixed with another type

Originally committed as revision 13145 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 13098 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10765 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10574 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10569 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9484 to svn://svn.ffmpeg.org/ffmpeg/trunk

This ensure get_buffer() won't be confused with an AVFrame pointer
which looks like it wasn't released.

Originally committed as revision 8124 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavutil/common.h for platforms with no inttypes.h.
patch by Steve Lhomme, slhomme divxcorp com

Originally committed as revision 6790 to svn://svn.ffmpeg.org/ffmpeg/trunk

and fix GPL/LGPL version mismatches.

Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6213 to svn://svn.ffmpeg.org/ffmpeg/trunk