m_property: add mechanism to access properties as mpv_node

Allows retrieving properties by their native values (or something close
to it), rather than having to go through string conversion. The caller
could actually just copy the value itself and then use the m_option
functions to convert it to mpv_node, but maybe it's more flexible this
way.

1 files changed, 11 insertions, 0 deletions

diff --git a/options/m_property.h b/options/m_property.h
index 460f8a986c..6fc27301b5 100644
--- a/options/m_property.h
+++ b/options/m_property.h
@@ -68,6 +68,14 @@ enum mp_property_action {
     //  arg: char*
     M_PROPERTY_SET_STRING,
 
+    // Set a mpv_node value.
+    //  arg: mpv_node*
+    M_PROPERTY_GET_NODE,
+
+    // Get a mpv_node value.
+    //  arg: mpv_node*
+    M_PROPERTY_SET_NODE,
+
     // Pass down an action to a sub-property.
     //  arg: struct m_property_action_arg*
     M_PROPERTY_KEY_ACTION,
@@ -102,6 +110,9 @@ enum mp_property_return {
 
     // Returned when asking for a property that doesn't exist.
     M_PROPERTY_UNKNOWN = -3,
+
+    // When trying to set invalid or incorrectly formatted data.
+    M_PROPERTY_INVALID_FORMAT = -4,
 };
 
 // Access a property.