From 4eb5e651224b292329eced18998f739c762c4c84 Mon Sep 17 00:00:00 2001
From: Kristian Ollikainen <krisu44@hotmail.com>
Date: Sat, 13 Aug 2022 14:07:22 +0300
Subject: [PATCH] win-dshow: Fix building without Virtual Camera

---
 plugins/win-dshow/CMakeLists.txt | 84 ++++++++++++++++----------------
 1 file changed, 43 insertions(+), 41 deletions(-)

diff --git a/plugins/win-dshow/CMakeLists.txt b/plugins/win-dshow/CMakeLists.txt
index ea07a2a86..94161581f 100644
--- a/plugins/win-dshow/CMakeLists.txt
+++ b/plugins/win-dshow/CMakeLists.txt
@@ -78,49 +78,51 @@ target_compile_definitions(
                     _CRT_NONSTDC_NO_WARNINGS)
 
 set(VIRTUALCAM_AVAILABLE OFF)
-if(VIRTUALCAM_GUID STREQUAL "")
-  obs_status(
-    WARNING
-    "Windows Virtual Camera - GUID not set - specify as 'VIRTUALCAM_GUID' to enable."
-  )
-else()
-  set(INVALID_GUID ON)
+if(ENABLE_VIRTUALCAM)
+  if(VIRTUALCAM_GUID STREQUAL "")
+    obs_status(
+      WARNING
+      "Windows Virtual Camera - GUID not set - specify as 'VIRTUALCAM_GUID' to enable."
+    )
+  else()
+    set(INVALID_GUID ON)
 
-  string(REPLACE "-" ";" GUID_VALS ${VIRTUALCAM_GUID})
+    string(REPLACE "-" ";" GUID_VALS ${VIRTUALCAM_GUID})
 
-  list(LENGTH GUID_VALS GUID_VAL_COUNT)
-  if(GUID_VAL_COUNT EQUAL 5)
-    string(REPLACE ";" "0" GUID_HEX ${GUID_VALS})
-    string(REGEX MATCH "[0-9a-fA-F]+" GUID_ACTUAL_HEX ${GUID_HEX})
-    if(GUID_ACTUAL_HEX STREQUAL GUID_HEX)
-      list(GET GUID_VALS 0 GUID_VALS_DATA1)
-      list(GET GUID_VALS 1 GUID_VALS_DATA2)
-      list(GET GUID_VALS 2 GUID_VALS_DATA3)
-      list(GET GUID_VALS 3 GUID_VALS_DATA4)
-      list(GET GUID_VALS 4 GUID_VALS_DATA5)
-      string(LENGTH ${GUID_VALS_DATA1} GUID_VALS_DATA1_LENGTH)
-      string(LENGTH ${GUID_VALS_DATA2} GUID_VALS_DATA2_LENGTH)
-      string(LENGTH ${GUID_VALS_DATA3} GUID_VALS_DATA3_LENGTH)
-      string(LENGTH ${GUID_VALS_DATA4} GUID_VALS_DATA4_LENGTH)
-      string(LENGTH ${GUID_VALS_DATA5} GUID_VALS_DATA5_LENGTH)
-      if(GUID_VALS_DATA1_LENGTH EQUAL 8
-         AND GUID_VALS_DATA2_LENGTH EQUAL 4
-         AND GUID_VALS_DATA3_LENGTH EQUAL 4
-         AND GUID_VALS_DATA4_LENGTH EQUAL 4
-         AND GUID_VALS_DATA5_LENGTH EQUAL 12)
-        set(GUID_VAL01 ${GUID_VALS_DATA1})
-        set(GUID_VAL02 ${GUID_VALS_DATA2})
-        set(GUID_VAL03 ${GUID_VALS_DATA3})
-        string(SUBSTRING ${GUID_VALS_DATA4} 0 2 GUID_VAL04)
-        string(SUBSTRING ${GUID_VALS_DATA4} 2 2 GUID_VAL05)
-        string(SUBSTRING ${GUID_VALS_DATA5} 0 2 GUID_VAL06)
-        string(SUBSTRING ${GUID_VALS_DATA5} 2 2 GUID_VAL07)
-        string(SUBSTRING ${GUID_VALS_DATA5} 4 2 GUID_VAL08)
-        string(SUBSTRING ${GUID_VALS_DATA5} 6 2 GUID_VAL09)
-        string(SUBSTRING ${GUID_VALS_DATA5} 8 2 GUID_VAL10)
-        string(SUBSTRING ${GUID_VALS_DATA5} 10 2 GUID_VAL11)
-        set(VIRTUALCAM_AVAILABLE ON)
-        set(INVALID_GUID OFF)
+    list(LENGTH GUID_VALS GUID_VAL_COUNT)
+    if(GUID_VAL_COUNT EQUAL 5)
+      string(REPLACE ";" "0" GUID_HEX ${GUID_VALS})
+      string(REGEX MATCH "[0-9a-fA-F]+" GUID_ACTUAL_HEX ${GUID_HEX})
+      if(GUID_ACTUAL_HEX STREQUAL GUID_HEX)
+        list(GET GUID_VALS 0 GUID_VALS_DATA1)
+        list(GET GUID_VALS 1 GUID_VALS_DATA2)
+        list(GET GUID_VALS 2 GUID_VALS_DATA3)
+        list(GET GUID_VALS 3 GUID_VALS_DATA4)
+        list(GET GUID_VALS 4 GUID_VALS_DATA5)
+        string(LENGTH ${GUID_VALS_DATA1} GUID_VALS_DATA1_LENGTH)
+        string(LENGTH ${GUID_VALS_DATA2} GUID_VALS_DATA2_LENGTH)
+        string(LENGTH ${GUID_VALS_DATA3} GUID_VALS_DATA3_LENGTH)
+        string(LENGTH ${GUID_VALS_DATA4} GUID_VALS_DATA4_LENGTH)
+        string(LENGTH ${GUID_VALS_DATA5} GUID_VALS_DATA5_LENGTH)
+        if(GUID_VALS_DATA1_LENGTH EQUAL 8
+           AND GUID_VALS_DATA2_LENGTH EQUAL 4
+           AND GUID_VALS_DATA3_LENGTH EQUAL 4
+           AND GUID_VALS_DATA4_LENGTH EQUAL 4
+           AND GUID_VALS_DATA5_LENGTH EQUAL 12)
+          set(GUID_VAL01 ${GUID_VALS_DATA1})
+          set(GUID_VAL02 ${GUID_VALS_DATA2})
+          set(GUID_VAL03 ${GUID_VALS_DATA3})
+          string(SUBSTRING ${GUID_VALS_DATA4} 0 2 GUID_VAL04)
+          string(SUBSTRING ${GUID_VALS_DATA4} 2 2 GUID_VAL05)
+          string(SUBSTRING ${GUID_VALS_DATA5} 0 2 GUID_VAL06)
+          string(SUBSTRING ${GUID_VALS_DATA5} 2 2 GUID_VAL07)
+          string(SUBSTRING ${GUID_VALS_DATA5} 4 2 GUID_VAL08)
+          string(SUBSTRING ${GUID_VALS_DATA5} 6 2 GUID_VAL09)
+          string(SUBSTRING ${GUID_VALS_DATA5} 8 2 GUID_VAL10)
+          string(SUBSTRING ${GUID_VALS_DATA5} 10 2 GUID_VAL11)
+          set(VIRTUALCAM_AVAILABLE ON)
+          set(INVALID_GUID OFF)
+        endif()
       endif()
     endif()
   endif()