added ffplay utility

Originally committed as revision 1936 to svn://svn.ffmpeg.org/ffmpeg/trunk

cmdutils.h

@@ -0,0 +1,25 @@
+#ifndef _CMD_UTILS_H
+#define _CMD_UTILS_H
+
+typedef struct {
+    const char *name;
+    int flags;
+#define HAS_ARG    0x0001
+#define OPT_BOOL   0x0002
+#define OPT_EXPERT 0x0004
+#define OPT_STRING 0x0008
+    union {
+        void (*func_arg)(const char *);
+        int *int_arg;
+        char **str_arg;
+    } u;
+    const char *help;
+    const char *argname;
+} OptionDef;
+
+void show_help_options(const OptionDef *options);
+void parse_options(int argc, char **argv, const OptionDef *options);
+void parse_arg_file(const char *filename);
+void print_error(const char *filename, int err);
+
+#endif /* _CMD_UTILS_H */