suboption parser for vo and ao modules

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@14282 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 39 insertions, 0 deletions

diff --git a/subopt-helper.h b/subopt-helper.h
new file mode 100644
index 0000000000..529801697f
--- /dev/null
+++ b/subopt-helper.h
@@ -0,0 +1,39 @@
+#ifndef SUBOPT_HELPER_H
+#define SUBOPT_HELPER_H
+
+/**
+ * \file subopt-helper.h
+ *
+ * \brief Datatype and functions declarations for usage 
+ *        of the suboption parser.
+ *
+ */
+
+#define OPT_ARG_BOOL 0
+#define OPT_ARG_INT  1
+#define OPT_ARG_STR  2
+
+/** simple structure for defining the option name, type and storage location */
+typedef struct opt_s
+{
+  char * name; ///< string that identifies the option
+  int type;    ///< option type as defined in subopt-helper.h
+  void * valp; ///< pointer to the mem where the value should be stored
+  int (* test)(void *); ///< argument test func ( optional )
+  int set;     ///< Is set internally by the parser if the option was found.
+               ///< Don't use it at initialization of your opts, it will be
+               ///< overriden anyway!
+} opt_t;
+
+/** parses the string for the options specified in opt */
+int subopt_parse( char const * const str, opt_t * opts );
+
+
+/*------------------ arg specific types and declaration -------------------*/
+typedef struct strarg_s
+{
+  unsigned char len; ///< length of the string determined by the parser
+  char const * str;  ///< pointer to position inside the parse string
+} strarg_t;
+
+#endif