lavu/pixfmt: move AVPALETTE_SIZE and _COUNT to pixfmt.h

Move AVPALETTE_SIZE and AVPALETTE_COUNT definition from
libavcodec/avcodec.h to libavutil/pixfmt.h.

The definition is more useful in libavutil, where it can be shared for
example by libavfilter and libswscale.

doc/APIchanges

@@ -15,6 +15,10 @@ libavutil:     2011-04-18
 
 API changes, most recent first:
 
+2012-05-24 - xxxxxxx - lavu 51.54.100
+  Move AVPALETTE_SIZE and AVPALETTE_COUNT macros from
+  libavcodec/avcodec.h to libavutil/pixfmt.h.
+
 2012-05-07 - xxxxxxx - lavf 54.5.100
   Add av_guess_sample_aspect_ratio() function.
 

libavcodec/avcodec.h

@@ -3130,9 +3130,6 @@ typedef struct AVPicture {
  * @}
  */
 
-#define AVPALETTE_SIZE 1024
-#define AVPALETTE_COUNT 256
-
 enum AVSubtitleType {
     SUBTITLE_NONE,
 

libavutil/avutil.h

@@ -153,7 +153,7 @@
  */
 
 #define LIBAVUTIL_VERSION_MAJOR 51
-#define LIBAVUTIL_VERSION_MINOR 53
+#define LIBAVUTIL_VERSION_MINOR 54
 #define LIBAVUTIL_VERSION_MICRO 100
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \

libavutil/pixfmt.h

@@ -29,6 +29,9 @@
 
 #include "libavutil/avconfig.h"
 
+#define AVPALETTE_SIZE 1024
+#define AVPALETTE_COUNT 256
+
 /**
  * Pixel format.
  *