1 files changed, 123 insertions, 0 deletions
diff --git a/dom/media/gmp/GMPContentChild.cpp b/dom/media/gmp/GMPContentChild.cpp
new file mode 100644
index 0000000000..90271512b3
--- /dev/null
+++ b/dom/media/gmp/GMPContentChild.cpp
@@ -0,0 +1,123 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "GMPContentChild.h"
+#include "GMPChild.h"
+#include "GMPVideoDecoderChild.h"
+#include "GMPVideoEncoderChild.h"
+#include "ChromiumCDMChild.h"
+#include "base/task.h"
+#include "GMPUtils.h"
+
+namespace mozilla::gmp {
+
+MessageLoop* GMPContentChild::GMPMessageLoop() {
+  return mGMPChild->GMPMessageLoop();
+}
+
+void GMPContentChild::CheckThread() {
+  MOZ_ASSERT(mGMPChild->mGMPMessageLoop == MessageLoop::current());
+}
+
+void GMPContentChild::ActorDestroy(ActorDestroyReason aWhy) {
+  mGMPChild->GMPContentChildActorDestroy(this);
+}
+
+void GMPContentChild::ProcessingError(Result aCode, const char* aReason) {
+  mGMPChild->ProcessingError(aCode, aReason);
+}
+
+already_AddRefed<PGMPVideoDecoderChild>
+GMPContentChild::AllocPGMPVideoDecoderChild(const uint32_t& aDecryptorId) {
+  return MakeAndAddRef<GMPVideoDecoderChild>(this);
+}
+
+already_AddRefed<PGMPVideoEncoderChild>
+GMPContentChild::AllocPGMPVideoEncoderChild() {
+  return MakeAndAddRef<GMPVideoEncoderChild>(this);
+}
+
+already_AddRefed<PChromiumCDMChild> GMPContentChild::AllocPChromiumCDMChild() {
+  return MakeAndAddRef<ChromiumCDMChild>(this);
+}
+
+mozilla::ipc::IPCResult GMPContentChild::RecvPGMPVideoDecoderConstructor(
+    PGMPVideoDecoderChild* aActor, const uint32_t& aDecryptorId) {
+  auto vdc = static_cast<GMPVideoDecoderChild*>(aActor);
+
+  void* vd = nullptr;
+  GMPErr err =
+      mGMPChild->GetAPI(GMP_API_VIDEO_DECODER, &vdc->Host(), &vd, aDecryptorId);
+  if (err != GMPNoErr || !vd) {
+    NS_WARNING("GMPGetAPI call failed trying to construct decoder.");
+    return IPC_FAIL_NO_REASON(this);
+  }
+
+  vdc->Init(static_cast<GMPVideoDecoder*>(vd));
+
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult GMPContentChild::RecvPGMPVideoEncoderConstructor(
+    PGMPVideoEncoderChild* aActor) {
+  auto vec = static_cast<GMPVideoEncoderChild*>(aActor);
+
+  void* ve = nullptr;
+  GMPErr err = mGMPChild->GetAPI(GMP_API_VIDEO_ENCODER, &vec->Host(), &ve);
+  if (err != GMPNoErr || !ve) {
+    NS_WARNING("GMPGetAPI call failed trying to construct encoder.");
+    return IPC_FAIL_NO_REASON(this);
+  }
+
+  vec->Init(static_cast<GMPVideoEncoder*>(ve));
+
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult GMPContentChild::RecvPChromiumCDMConstructor(
+    PChromiumCDMChild* aActor) {
+  ChromiumCDMChild* child = static_cast<ChromiumCDMChild*>(aActor);
+  cdm::Host_10* host10 = child;
+
+  void* cdm = nullptr;
+  GMPErr err = mGMPChild->GetAPI(CHROMIUM_CDM_API, host10, &cdm);
+  if (err != GMPNoErr || !cdm) {
+    NS_WARNING("GMPGetAPI call failed trying to get CDM.");
+    return IPC_FAIL_NO_REASON(this);
+  }
+
+  child->Init(static_cast<cdm::ContentDecryptionModule_10*>(cdm),
+              mGMPChild->mStorageId);
+
+  return IPC_OK();
+}
+
+void GMPContentChild::CloseActive() {
+  // Invalidate and remove any remaining API objects.
+  const ManagedContainer<PGMPVideoDecoderChild>& videoDecoders =
+      ManagedPGMPVideoDecoderChild();
+  for (auto iter = videoDecoders.ConstIter(); !iter.Done(); iter.Next()) {
+    iter.Get()->GetKey()->SendShutdown();
+  }
+
+  const ManagedContainer<PGMPVideoEncoderChild>& videoEncoders =
+      ManagedPGMPVideoEncoderChild();
+  for (auto iter = videoEncoders.ConstIter(); !iter.Done(); iter.Next()) {
+    iter.Get()->GetKey()->SendShutdown();
+  }
+
+  const ManagedContainer<PChromiumCDMChild>& cdms = ManagedPChromiumCDMChild();
+  for (auto iter = cdms.ConstIter(); !iter.Done(); iter.Next()) {
+    iter.Get()->GetKey()->SendShutdown();
+  }
+}
+
+bool GMPContentChild::IsUsed() {
+  return !ManagedPGMPVideoDecoderChild().IsEmpty() ||
+         !ManagedPGMPVideoEncoderChild().IsEmpty() ||
+         !ManagedPChromiumCDMChild().IsEmpty();
+}
+
+}  // namespace mozilla::gmp