Add Dual Cartesian parameter definition types and messages.

Introduces PARAM_DEFINITION_TYPE_DUAL_CART_8 and PARAM_DEFINITION_TYPE_DUAL_CART_16 to support dual Cartesian parameter definitions. Adds DualCart8ParamDefinition and DualCart16ParamDefinition messages to hold the default values for these types.

PiperOrigin-RevId: 844448120

Author: Googler

iamf/cli/proto/param_definitions.proto

@@ -27,6 +27,8 @@ enum ParamDefinitionType {
   PARAM_DEFINITION_TYPE_CART_8 = 5;
   PARAM_DEFINITION_TYPE_CART_16 = 6;
   PARAM_DEFINITION_TYPE_DUAL_POLAR = 7;
+  PARAM_DEFINITION_TYPE_DUAL_CART_8 = 8;
+  PARAM_DEFINITION_TYPE_DUAL_CART_16 = 9;
   PARAM_DEFINITION_TYPE_RESERVED_255 = 256;
 }
 
@@ -104,3 +106,23 @@ message DualPolarParamDefinition {
   // `default_second_elevation` is clipped to [-90, 90].
   int32 default_second_distance = 7;  // 7 bits.
 }
+
+message DualCart8ParamDefinition {
+  ParamDefinition param_definition = 1;
+  int32 default_first_x = 2;   // 8 bits.
+  int32 default_first_y = 3;   // 8 bits.
+  int32 default_first_z = 4;   // 8 bits.
+  int32 default_second_x = 5;  // 8 bits.
+  int32 default_second_y = 6;  // 8 bits.
+  int32 default_second_z = 7;  // 8 bits.
+}
+
+message DualCart16ParamDefinition {
+  ParamDefinition param_definition = 1;
+  int32 default_first_x = 2;   // 16 bits.
+  int32 default_first_y = 3;   // 16 bits.
+  int32 default_first_z = 4;   // 16 bits.
+  int32 default_second_x = 5;  // 16 bits.
+  int32 default_second_y = 6;  // 16 bits.
+  int32 default_second_z = 7;  // 16 bits.
+}