[DashTree] Workaround to always get KID for ClearKey

src/parser/DASHTree.cpp

@@ -12,6 +12,7 @@
 #include "PRProtectionParser.h"
 #include "SrvBroker.h"
 #include "common/Period.h"
+#include "decrypters/Helpers.h"
 #include "utils/Base64Utils.h"
 #include "utils/CurlUtils.h"
 #include "utils/StringUtils.h"
@@ -1336,6 +1337,34 @@ bool adaptive::CDashTree::GetProtectionData(
     }
   }
 
+  // Workaround for ClearKey:
+  // if license type ClearKey is set and a manifest dont contains ClearKey protection scheme
+  // in any case the KID is required to allow decryption (with clear keys or license URLs provided by Kodi props)
+  //! @todo: this should not be a task of parser, moreover missing an appropriate KID extraction from mp4 box
+  auto& kodiProps = CSrvBroker::GetKodiProps();
+  ProtectionScheme ckProtScheme;
+  if (!protSelected && !protCommon && kodiProps.GetLicenseType() == DRM::KS_CLEARKEY)
+  {
+    for (const ProtectionScheme& protScheme : reprProtSchemes)
+    {
+      if (!protScheme.kid.empty())
+      {
+        ckProtScheme.kid = protScheme.kid;
+        break;
+      }
+    }
+    if (ckProtScheme.kid.empty())
+    {
+      for (const ProtectionScheme& protScheme : adpProtSchemes)
+      {
+        ckProtScheme.kid = protScheme.kid;
+        break;
+      }
+    }
+    if (!ckProtScheme.kid.empty())
+      protCommon = &ckProtScheme;
+  }
+
   bool isEncrypted{false};
   std::string selectedKid;
   std::string selectedPssh;