Further performance improvements and security fixes by
Vittorio Giovara, Luca Barbato and Diego Biurrun.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Diego Biurrun <diego@biurrun.de>

Mentioned on http://msdn.microsoft.com/en-us/library/dd341376%28prot.20%29.aspx

Sample-Id: 4790b7f1c44f98e35f3b806468fa615f5930a5b3.wav

Sample-Id: crusader-no-regret.avi

Sample-Id: g726-test1.wav

Sample-Id: 40709.avi

Sample-Id: MAILTEST.AVI

PAL looks incorrect.

Sample-Id: vivd.avi

Sample-Id: york-water-meteor.avi

Sample-Id: smv2.avi

Some players, like foobar2000 or modern versions of WMP, create WAV
files using the ITRK tag for track instead of IPRT

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Reported-By: Vittorio Giovara <vittorio.giovara@gmail.com>

Add the missing define.

And move outside the wrong doxygen group.