libmpv: add mpv_del_property() convenience function

DOCS/client-api-changes.rst

@@ -33,6 +33,7 @@ API changes
 ::
 
  --- mpv 0.35.0 ---
+ 2.1    - add mpv_del_property()
  2.0    - remove headers/functions of the obsolete opengl_cb API
         - remove mpv_opengl_init_params.extra_exts field
         - remove deprecated mpv_detach_destroy. Use mpv_destroy instead.

libmpv/client.h

@@ -240,7 +240,7 @@ extern "C" {
  * relational operators (<, >, <=, >=).
  */
 #define MPV_MAKE_VERSION(major, minor) (((major) << 16) | (minor) | 0UL)
-#define MPV_CLIENT_API_VERSION MPV_MAKE_VERSION(2, 0)
+#define MPV_CLIENT_API_VERSION MPV_MAKE_VERSION(2, 1)
 
 /**
  * The API user is allowed to "#define MPV_ENABLE_DEPRECATED 0" before
@@ -1068,6 +1068,16 @@ MPV_EXPORT int mpv_set_property(mpv_handle *ctx, const char *name, mpv_format fo
  */
 MPV_EXPORT int mpv_set_property_string(mpv_handle *ctx, const char *name, const char *data);
 
+/**
+ * Convenience function to delete a property.
+ *
+ * This is equivalent to running the command "del [name]".
+ *
+ * @param name The property name. See input.rst for a list of properties.
+ * @return error code
+ */
+MPV_EXPORT int mpv_del_property(mpv_handle *ctx, const char *name);
+
 /**
  * Set a property asynchronously. You will receive the result of the operation
  * as MPV_EVENT_SET_PROPERTY_REPLY event. The mpv_event.error field will contain

player/client.c

@@ -1337,6 +1337,12 @@ int mpv_set_property(mpv_handle *ctx, const char *name, mpv_format format,
     return req.status;
 }
 
+int mpv_del_property(mpv_handle *ctx, const char *name)
+{
+    const char* args[] = { "del", name, NULL };
+    return mpv_command(ctx, args);
+}
+
 int mpv_set_property_string(mpv_handle *ctx, const char *name, const char *data)
 {
     return mpv_set_property(ctx, name, MPV_FORMAT_STRING, &data);