Export to pixdesc.h the av_pix_fmt_descriptors array.

Originally committed as revision 18152 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/pixdesc.c

@@ -22,7 +22,7 @@
 #include "libavutil/pixfmt.h"
 #include "pixdesc.h"
 
-static const AVPixFmtDescriptor pix_fmt_desc[PIX_FMT_NB] = {
+const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
     [PIX_FMT_YUV422P] = {
         .name = "yuv422p",
         .nb_channels  = 3,

libavcodec/pixdesc.h

@@ -67,6 +67,10 @@ typedef struct AVPixFmtDescriptor{
 #define PIX_FMT_PAL       2 ///< Pixel format has a palette in data[1], values are indexes in this palette.
 #define PIX_FMT_BITSTREAM 4 ///< All values of a component are bit-wise packed end to end.
 
+/**
+ * The array of all the pixel format descriptors.
+ */
+extern const AVPixFmtDescriptor av_pix_fmt_descriptors[];
 
 static inline void read_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4], AVPixFmtDescriptor *desc, int x, int y, int c, int w)
 {