1 files changed, 121 insertions, 0 deletions
diff --git a/dom/media/ipc/RemoteAudioDecoder.cpp b/dom/media/ipc/RemoteAudioDecoder.cpp
new file mode 100644
index 0000000000..4622410fad
--- /dev/null
+++ b/dom/media/ipc/RemoteAudioDecoder.cpp
@@ -0,0 +1,121 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "RemoteAudioDecoder.h"
+
+#include "MediaDataDecoderProxy.h"
+#include "PDMFactory.h"
+#include "RemoteDecoderManagerChild.h"
+#include "RemoteDecoderManagerParent.h"
+#include "mozilla/PodOperations.h"
+#include "mozilla/StaticPrefs_media.h"
+
+namespace mozilla {
+
+RemoteAudioDecoderChild::RemoteAudioDecoderChild(RemoteDecodeIn aLocation)
+    : RemoteDecoderChild(aLocation) {}
+
+MediaResult RemoteAudioDecoderChild::ProcessOutput(
+    DecodedOutputIPDL&& aDecodedData) {
+  AssertOnManagerThread();
+
+  MOZ_ASSERT(aDecodedData.type() == DecodedOutputIPDL::TArrayOfRemoteAudioData);
+  RefPtr<ArrayOfRemoteAudioData> arrayData =
+      aDecodedData.get_ArrayOfRemoteAudioData();
+
+  for (size_t i = 0; i < arrayData->Count(); i++) {
+    RefPtr<AudioData> data = arrayData->ElementAt(i);
+    if (!data) {
+      // OOM
+      return MediaResult(NS_ERROR_OUT_OF_MEMORY, __func__);
+    }
+    mDecodedData.AppendElement(data);
+  }
+  return NS_OK;
+}
+
+MediaResult RemoteAudioDecoderChild::InitIPDL(
+    const AudioInfo& aAudioInfo, const CreateDecoderParams::OptionSet& aOptions,
+    const Maybe<uint64_t>& aMediaEngineId) {
+  RefPtr<RemoteDecoderManagerChild> manager =
+      RemoteDecoderManagerChild::GetSingleton(mLocation);
+
+  // The manager isn't available because RemoteDecoderManagerChild has been
+  // initialized with null end points and we don't want to decode video on RDD
+  // process anymore. Return false here so that we can fallback to other PDMs.
+  if (!manager) {
+    return MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR,
+                       RESULT_DETAIL("RemoteDecoderManager is not available."));
+  }
+
+  if (!manager->CanSend()) {
+    return MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR,
+                       RESULT_DETAIL("RemoteDecoderManager unable to send."));
+  }
+
+  mIPDLSelfRef = this;
+  MOZ_ALWAYS_TRUE(manager->SendPRemoteDecoderConstructor(
+      this, aAudioInfo, aOptions, Nothing(), aMediaEngineId, Nothing()));
+  return NS_OK;
+}
+
+RemoteAudioDecoderParent::RemoteAudioDecoderParent(
+    RemoteDecoderManagerParent* aParent, const AudioInfo& aAudioInfo,
+    const CreateDecoderParams::OptionSet& aOptions,
+    nsISerialEventTarget* aManagerThread, TaskQueue* aDecodeTaskQueue,
+    Maybe<uint64_t> aMediaEngineId)
+    : RemoteDecoderParent(aParent, aOptions, aManagerThread, aDecodeTaskQueue,
+                          aMediaEngineId, Nothing()),
+      mAudioInfo(aAudioInfo) {}
+
+IPCResult RemoteAudioDecoderParent::RecvConstruct(
+    ConstructResolver&& aResolver) {
+  auto params = CreateDecoderParams{mAudioInfo, mOptions,
+                                    CreateDecoderParams::NoWrapper(true),
+                                    mMediaEngineId, mTrackingId};
+
+  mParent->EnsurePDMFactory().CreateDecoder(params)->Then(
+      GetCurrentSerialEventTarget(), __func__,
+      [resolver = std::move(aResolver), self = RefPtr{this}](
+          PlatformDecoderModule::CreateDecoderPromise::ResolveOrRejectValue&&
+              aValue) {
+        if (aValue.IsReject()) {
+          resolver(aValue.RejectValue());
+          return;
+        }
+        MOZ_ASSERT(aValue.ResolveValue());
+        self->mDecoder =
+            new MediaDataDecoderProxy(aValue.ResolveValue().forget(),
+                                      do_AddRef(self->mDecodeTaskQueue.get()));
+        resolver(NS_OK);
+      });
+
+  return IPC_OK();
+}
+
+MediaResult RemoteAudioDecoderParent::ProcessDecodedData(
+    MediaDataDecoder::DecodedData&& aData, DecodedOutputIPDL& aDecodedData) {
+  MOZ_ASSERT(OnManagerThread());
+
+  // Converted array to array of RefPtr<AudioData>
+  nsTArray<RefPtr<AudioData>> data(aData.Length());
+  for (auto&& element : aData) {
+    MOZ_ASSERT(element->mType == MediaData::Type::AUDIO_DATA,
+               "Can only decode audio using RemoteAudioDecoderParent!");
+    AudioData* audio = static_cast<AudioData*>(element.get());
+    data.AppendElement(audio);
+  }
+  auto array = MakeRefPtr<ArrayOfRemoteAudioData>();
+  if (!array->Fill(std::move(data),
+                   [&](size_t aSize) { return AllocateBuffer(aSize); })) {
+    return MediaResult(
+        NS_ERROR_OUT_OF_MEMORY,
+        "Failed in RemoteAudioDecoderParent::ProcessDecodedData");
+  }
+  aDecodedData = std::move(array);
+  return NS_OK;
+}
+
+}  // namespace mozilla