include: Add ID3D12VideoEncodeCommandList1 in d3d12video.idl.

include/d3d12video.idl

@@ -758,6 +758,27 @@ interface ID3D12VideoDevice2 : ID3D12VideoDevice1
     );
 }
 
+[
+    uuid(94971eca-2bdb-4769-88cf-3675ea757ebc),
+    object,
+    local,
+    pointer_default(unique)
+]
+interface ID3D12VideoEncodeCommandList1 : ID3D12VideoEncodeCommandList
+{
+    void InitializeExtensionCommand(
+        [in] ID3D12VideoExtensionCommand *extension_command,
+        [in] const void *initialization_parameters,
+        [in] SIZE_T initialization_parameters_size_in_bytes
+    );
+
+    void ExecuteExtensionCommand(
+        [in] ID3D12VideoExtensionCommand *extension_command,
+        [in] const void *execution_parameters,
+        [in] SIZE_T execution_parameters_size_in_bytes
+    );
+}
+
 cpp_quote("DEFINE_GUID(D3D12_VIDEO_DECODE_PROFILE_MPEG2, 0xee27417f, 0x5e28, 0x4e65, 0xbe, 0xea, 0x1d, 0x26, 0xb5, 0x08, 0xad, 0xc9);")
 cpp_quote("DEFINE_GUID(D3D12_VIDEO_DECODE_PROFILE_MPEG1_AND_MPEG2, 0x86695f12, 0x340e, 0x4f04, 0x9f, 0xd3, 0x92, 0x53, 0xdd, 0x32, 0x74, 0x60);")
 cpp_quote("DEFINE_GUID(D3D12_VIDEO_DECODE_PROFILE_H264, 0x1b81be68, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);")