Signed-off-by: Diego Biurrun <diego@biurrun.de>

Anonymous structs cannot be forward declared and have no benefit.

MSVC doesn't like the offsetof(..) >> 1 construct, it interprets it as
a non-literal, thus causing use of this in static tables to fail
compilation.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

Add missing multiple inclusion guards; clean up #endif comments;
add missing library prefixes; keep guard names consistent.

Signed-off-by: Mans Rullgard <mans@mansr.com>

amrwbdata.h uses offsetof(), which is defined in stddef.h.

Originally committed as revision 26068 to svn://svn.ffmpeg.org/ffmpeg/trunk

Galvão Póvoa <marspeoplester gmail com>, mentored by Robert Swain <robert
dot swain gmail com>.

Originally committed as revision 26051 to svn://svn.ffmpeg.org/ffmpeg/trunk