1 files changed, 103 insertions, 0 deletions
diff --git a/dom/media/ipc/RemoteDecodeUtils.cpp b/dom/media/ipc/RemoteDecodeUtils.cpp
new file mode 100644
index 0000000000..15036a0370
--- /dev/null
+++ b/dom/media/ipc/RemoteDecodeUtils.cpp
@@ -0,0 +1,103 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "RemoteDecodeUtils.h"
+#include "mozilla/ipc/UtilityProcessChild.h"
+
+namespace mozilla {
+
+using SandboxingKind = ipc::SandboxingKind;
+
+SandboxingKind GetCurrentSandboxingKind() {
+  MOZ_ASSERT(XRE_IsUtilityProcess());
+  return ipc::UtilityProcessChild::GetSingleton()->mSandbox;
+}
+
+SandboxingKind GetSandboxingKindFromLocation(RemoteDecodeIn aLocation) {
+  switch (aLocation) {
+    case RemoteDecodeIn::UtilityProcess_Generic:
+      return SandboxingKind::GENERIC_UTILITY;
+#ifdef MOZ_APPLEMEDIA
+    case RemoteDecodeIn::UtilityProcess_AppleMedia:
+      return SandboxingKind::UTILITY_AUDIO_DECODING_APPLE_MEDIA;
+      break;
+#endif
+#ifdef XP_WIN
+    case RemoteDecodeIn::UtilityProcess_WMF:
+      return SandboxingKind::UTILITY_AUDIO_DECODING_WMF;
+#endif
+#ifdef MOZ_WMF_MEDIA_ENGINE
+    case RemoteDecodeIn::UtilityProcess_MFMediaEngineCDM:
+      return SandboxingKind::MF_MEDIA_ENGINE_CDM;
+#endif
+    default:
+      MOZ_ASSERT_UNREACHABLE("Unsupported RemoteDecodeIn");
+      return SandboxingKind::COUNT;
+  }
+}
+
+RemoteDecodeIn GetRemoteDecodeInFromKind(SandboxingKind aKind) {
+  switch (aKind) {
+    case SandboxingKind::GENERIC_UTILITY:
+      return RemoteDecodeIn::UtilityProcess_Generic;
+#ifdef MOZ_APPLEMEDIA
+    case SandboxingKind::UTILITY_AUDIO_DECODING_APPLE_MEDIA:
+      return RemoteDecodeIn::UtilityProcess_AppleMedia;
+#endif
+#ifdef XP_WIN
+    case SandboxingKind::UTILITY_AUDIO_DECODING_WMF:
+      return RemoteDecodeIn::UtilityProcess_WMF;
+#endif
+#ifdef MOZ_WMF_MEDIA_ENGINE
+    case SandboxingKind::MF_MEDIA_ENGINE_CDM:
+      return RemoteDecodeIn::UtilityProcess_MFMediaEngineCDM;
+#endif
+    default:
+      MOZ_ASSERT_UNREACHABLE("Unsupported SandboxingKind");
+      return RemoteDecodeIn::Unspecified;
+  }
+}
+
+RemoteDecodeIn GetRemoteDecodeInFromVideoBridgeSource(
+    layers::VideoBridgeSource aSource) {
+  switch (aSource) {
+    case layers::VideoBridgeSource::RddProcess:
+      return RemoteDecodeIn::RddProcess;
+    case layers::VideoBridgeSource::GpuProcess:
+      return RemoteDecodeIn::GpuProcess;
+    case layers::VideoBridgeSource::MFMediaEngineCDMProcess:
+      return RemoteDecodeIn::UtilityProcess_MFMediaEngineCDM;
+    default:
+      MOZ_ASSERT_UNREACHABLE("Unsupported VideoBridgeSource");
+      return RemoteDecodeIn::Unspecified;
+  }
+}
+
+const char* RemoteDecodeInToStr(RemoteDecodeIn aLocation) {
+  switch (aLocation) {
+    case RemoteDecodeIn::RddProcess:
+      return "RDD";
+    case RemoteDecodeIn::GpuProcess:
+      return "GPU";
+    case RemoteDecodeIn::UtilityProcess_Generic:
+      return "Utility Generic";
+#ifdef MOZ_APPLEMEDIA
+    case RemoteDecodeIn::UtilityProcess_AppleMedia:
+      return "Utility AppleMedia";
+#endif
+#ifdef XP_WIN
+    case RemoteDecodeIn::UtilityProcess_WMF:
+      return "Utility WMF";
+#endif
+#ifdef MOZ_WMF_MEDIA_ENGINE
+    case RemoteDecodeIn::UtilityProcess_MFMediaEngineCDM:
+      return "Utility MF Media Engine CDM";
+#endif
+    default:
+      MOZ_ASSERT_UNREACHABLE("Unsupported RemoteDecodeIn");
+      return "Unknown";
+  }
+}
+
+}  // namespace mozilla