Add functions to return library license and library configuration.

Originally committed as revision 29932 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

libswscale/swscale.c

@@ -84,6 +84,17 @@ unsigned swscale_version(void)
     return LIBSWSCALE_VERSION_INT;
 }
 
+const char * swscale_configuration(void)
+{
+    return FFMPEG_CONFIGURATION;
+}
+
+const char * swscale_license(void)
+{
+#define LICENSE_PREFIX "libswscale license: "
+    return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+}
+
 #undef MOVNTQ
 #undef PAVGB
 

libswscale/swscale.h

@@ -48,6 +48,16 @@
  */
 unsigned swscale_version(void);
 
+/**
+ * Returns the libswscale build-time configuration.
+ */
+const char * swscale_configuration(void);
+
+/**
+ * Returns the libswscale license.
+ */
+const char * swscale_license(void);
+
 /* values for the flags, the stuff on the command line is different */
 #define SWS_FAST_BILINEAR     1
 #define SWS_BILINEAR          2