Add supported_samplerates field to AVCodec

Patch by Stefano Sabatini ( stefano sabatini-lala poste it )

Originally committed as revision 12925 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/avcodec.h

@@ -30,7 +30,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVCODEC_VERSION_MAJOR 51
-#define LIBAVCODEC_VERSION_MINOR 55
+#define LIBAVCODEC_VERSION_MINOR 56
 #define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
@@ -2241,6 +2241,7 @@ typedef struct AVCodec {
     const AVRational *supported_framerates; ///< array of supported framerates, or NULL if any, array is terminated by {0,0}
     const enum PixelFormat *pix_fmts;       ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1
     const char *long_name;                  ///< descriptive name for the codec, meant to be more human readable than \p name
+    const int *supported_samplerates;       ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0
 } AVCodec;
 
 /**