Updated build of ffmpeg library (v 2.0.2). Builded with mingw (gcc 4.6.1) with

folowing additional options: --enable-w32threads, --arch=i686 (for 32-bit
library, workaround for http://trac.ffmpeg.org/ticket/2363)

3rdparty/include/ffmpeg_/libavcodec/avfft.h

@@ -19,6 +19,19 @@
 #ifndef AVCODEC_AVFFT_H
 #define AVCODEC_AVFFT_H
 
+/**
+ * @file
+ * @ingroup lavc_fft
+ * FFT functions
+ */
+
+/**
+ * @defgroup lavc_fft FFT functions
+ * @ingroup lavc_misc
+ *
+ * @{
+ */
+
 typedef float FFTSample;
 
 typedef struct FFTComplex {
@@ -96,4 +109,8 @@ DCTContext *av_dct_init(int nbits, enum DCTTransformType type);
 void av_dct_calc(DCTContext *s, FFTSample *data);
 void av_dct_end (DCTContext *s);
 
+/**
+ * @}
+ */
+
 #endif /* AVCODEC_AVFFT_H */