m_option: remove M_OPT_TYPE_DYNAMIC flag

It's actually redundant with whether m_option_type.free is set. Some
option types were flagged inconsistently. Its only use was for running
an additional sanity check without any real functionality.

options/m_config.c

@@ -424,7 +424,7 @@ static void m_config_add_option(struct m_config *config,
     } else {
         // Initialize options
         if (co.data && co.default_data) {
-            if (arg->type->flags & M_OPT_TYPE_DYNAMIC) {
+            if (arg->type->free) {
                 // Would leak memory by overwriting *co.data repeatedly.
                 for (int i = 0; i < config->num_opts; i++) {
                     if (co.data == config->opts[i].data)

options/m_option.c

@@ -1175,7 +1175,6 @@ static void free_str(void *src)
 const m_option_type_t m_option_type_string = {
     .name  = "String",
     .size  = sizeof(char *),
-    .flags = M_OPT_TYPE_DYNAMIC,
     .parse = parse_str,
     .print = print_str,
     .copy  = copy_str,
@@ -1486,7 +1485,7 @@ const m_option_type_t m_option_type_string_list = {
      */
     .name  = "String list",
     .size  = sizeof(char **),
-    .flags = M_OPT_TYPE_DYNAMIC | M_OPT_TYPE_ALLOW_WILDCARD,
+    .flags = M_OPT_TYPE_ALLOW_WILDCARD,
     .parse = parse_str_list,
     .print = print_str_list,
     .copy  = copy_str_list,
@@ -1522,7 +1521,6 @@ static int parse_str_append_list(struct mp_log *log, const m_option_t *opt,
 const m_option_type_t m_option_type_string_append_list = {
     .name  = "String list",
     .size  = sizeof(char **),
-    .flags = M_OPT_TYPE_DYNAMIC,
     .parse = parse_str_append_list,
     .print = print_str_list,
     .copy  = copy_str_list,
@@ -1636,7 +1634,6 @@ static int keyvalue_list_get(const m_option_t *opt, void *ta_parent,
 const m_option_type_t m_option_type_keyvalue_list = {
     .name  = "Key/value list",
     .size  = sizeof(char **),
-    .flags = M_OPT_TYPE_DYNAMIC,
     .parse = parse_keyvalue_list,
     .print = print_keyvalue_list,
     .copy  = copy_str_list,
@@ -1703,7 +1700,6 @@ static int set_msglevels(const m_option_t *opt, void *dst,
 const m_option_type_t m_option_type_msglevels = {
     .name = "Output verbosity levels",
     .size  = sizeof(char **),
-    .flags = M_OPT_TYPE_DYNAMIC,
     .parse = parse_msglevels,
     .print = print_keyvalue_list,
     .copy  = copy_str_list,
@@ -3284,7 +3280,7 @@ static int get_obj_settings_list(const m_option_t *opt, void *ta_parent,
 const m_option_type_t m_option_type_obj_settings_list = {
     .name  = "Object settings list",
     .size  = sizeof(m_obj_settings_t *),
-    .flags = M_OPT_TYPE_DYNAMIC | M_OPT_TYPE_ALLOW_WILDCARD,
+    .flags = M_OPT_TYPE_ALLOW_WILDCARD,
     .parse = parse_obj_settings_list,
     .print = print_obj_settings_list,
     .copy  = copy_obj_settings_list,
@@ -3405,7 +3401,6 @@ static int node_get(const m_option_t *opt, void *ta_parent,
 const m_option_type_t m_option_type_node = {
     .name  = "Complex",
     .size  = sizeof(struct mpv_node),
-    .flags = M_OPT_TYPE_DYNAMIC,
     .parse = parse_node,
     .print = print_node,
     .copy  = copy_node,

options/m_option.h

@@ -403,19 +403,11 @@ struct m_option {
  */
 #define M_OPT_TYPE_ALLOW_WILDCARD       (1 << 1)
 
-// Dynamic data type.
-/** This flag indicates that the data is dynamically allocated (m_option::p
- *  points to a pointer). It enables a little hack in the \ref Config which
- *  replaces the initial value of such variables with a dynamic copy in case
- *  the initial value is statically allocated (pretty common with strings).
- */
-#define M_OPT_TYPE_DYNAMIC              (1 << 2)
-
 // The parameter is optional and by default no parameter is preferred. If
 // ambiguous syntax is used ("--opt value"), the command line parser will
 // assume that the argument takes no parameter. In config files, these
 // options can be used without "=" and value.
-#define M_OPT_TYPE_OPTIONAL_PARAM       (1 << 3)
+#define M_OPT_TYPE_OPTIONAL_PARAM       (1 << 2)
 
 ///////////////////////////// Parser flags /////////////////////////////////