1 files changed, 176 insertions, 0 deletions
diff --git a/dom/media/ipc/RemoteVideoDecoder.cpp b/dom/media/ipc/RemoteVideoDecoder.cpp
new file mode 100644
index 000000000..c6131bb91
--- /dev/null
+++ b/dom/media/ipc/RemoteVideoDecoder.cpp
@@ -0,0 +1,176 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=99: */
+/* 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 "RemoteVideoDecoder.h"
+#include "VideoDecoderChild.h"
+#include "VideoDecoderManagerChild.h"
+#include "mozilla/layers/TextureClient.h"
+#include "base/thread.h"
+#include "MediaInfo.h"
+#include "MediaPrefs.h"
+#include "ImageContainer.h"
+#include "mozilla/layers/SynchronousTask.h"
+
+namespace mozilla {
+namespace dom {
+
+using base::Thread;
+using namespace ipc;
+using namespace layers;
+using namespace gfx;
+
+RemoteVideoDecoder::RemoteVideoDecoder(MediaDataDecoderCallback* aCallback)
+  : mActor(new VideoDecoderChild())
+{
+#ifdef DEBUG
+  mCallback = aCallback;
+#endif
+  MOZ_ASSERT(mCallback->OnReaderTaskQueue());
+}
+
+RemoteVideoDecoder::~RemoteVideoDecoder()
+{
+  // We're about to be destroyed and drop our ref to
+  // VideoDecoderChild. Make sure we put a ref into the
+  // task queue for the VideoDecoderChild thread to keep
+  // it alive until we send the delete message.
+  RefPtr<VideoDecoderChild> actor = mActor;
+  VideoDecoderManagerChild::GetManagerThread()->Dispatch(NS_NewRunnableFunction([actor]() {
+    MOZ_ASSERT(actor);
+    actor->DestroyIPDL();
+  }), NS_DISPATCH_NORMAL);
+}
+
+RefPtr<MediaDataDecoder::InitPromise>
+RemoteVideoDecoder::Init()
+{
+  MOZ_ASSERT(mCallback->OnReaderTaskQueue());
+  return InvokeAsync(VideoDecoderManagerChild::GetManagerAbstractThread(),
+                     this, __func__, &RemoteVideoDecoder::InitInternal);
+}
+
+RefPtr<MediaDataDecoder::InitPromise>
+RemoteVideoDecoder::InitInternal()
+{
+  MOZ_ASSERT(mActor);
+  MOZ_ASSERT(NS_GetCurrentThread() == VideoDecoderManagerChild::GetManagerThread());
+  return mActor->Init();
+}
+
+void
+RemoteVideoDecoder::Input(MediaRawData* aSample)
+{
+  MOZ_ASSERT(mCallback->OnReaderTaskQueue());
+  RefPtr<RemoteVideoDecoder> self = this;
+  RefPtr<MediaRawData> sample = aSample;
+  VideoDecoderManagerChild::GetManagerThread()->Dispatch(NS_NewRunnableFunction([self, sample]() {
+    MOZ_ASSERT(self->mActor);
+    self->mActor->Input(sample);
+  }), NS_DISPATCH_NORMAL);
+}
+
+void
+RemoteVideoDecoder::Flush()
+{
+  MOZ_ASSERT(mCallback->OnReaderTaskQueue());
+  RefPtr<RemoteVideoDecoder> self = this;
+  VideoDecoderManagerChild::GetManagerThread()->Dispatch(NS_NewRunnableFunction([self]() {
+    MOZ_ASSERT(self->mActor);
+    self->mActor->Flush();
+  }), NS_DISPATCH_NORMAL);
+}
+
+void
+RemoteVideoDecoder::Drain()
+{
+  MOZ_ASSERT(mCallback->OnReaderTaskQueue());
+  RefPtr<RemoteVideoDecoder> self = this;
+  VideoDecoderManagerChild::GetManagerThread()->Dispatch(NS_NewRunnableFunction([self]() {
+    MOZ_ASSERT(self->mActor);
+    self->mActor->Drain();
+  }), NS_DISPATCH_NORMAL);
+}
+
+void
+RemoteVideoDecoder::Shutdown()
+{
+  MOZ_ASSERT(mCallback->OnReaderTaskQueue());
+  SynchronousTask task("Shutdown");
+  RefPtr<RemoteVideoDecoder> self = this;
+  VideoDecoderManagerChild::GetManagerThread()->Dispatch(NS_NewRunnableFunction([&]() {
+    AutoCompleteTask complete(&task);
+    MOZ_ASSERT(self->mActor);
+    self->mActor->Shutdown();
+  }), NS_DISPATCH_NORMAL);
+  task.Wait();
+}
+
+bool
+RemoteVideoDecoder::IsHardwareAccelerated(nsACString& aFailureReason) const
+{
+  MOZ_ASSERT(mCallback->OnReaderTaskQueue());
+  return mActor->IsHardwareAccelerated(aFailureReason);
+}
+
+void
+RemoteVideoDecoder::SetSeekThreshold(const media::TimeUnit& aTime)
+{
+  MOZ_ASSERT(mCallback->OnReaderTaskQueue());
+  RefPtr<RemoteVideoDecoder> self = this;
+  media::TimeUnit time = aTime;
+  VideoDecoderManagerChild::GetManagerThread()->Dispatch(NS_NewRunnableFunction([=]() {
+    MOZ_ASSERT(self->mActor);
+    self->mActor->SetSeekThreshold(time);
+  }), NS_DISPATCH_NORMAL);
+
+}
+
+nsresult
+RemoteDecoderModule::Startup()
+{
+  if (!VideoDecoderManagerChild::GetManagerThread()) {
+    return NS_ERROR_FAILURE;
+  }
+  return mWrapped->Startup();
+}
+
+bool
+RemoteDecoderModule::SupportsMimeType(const nsACString& aMimeType,
+                                      DecoderDoctorDiagnostics* aDiagnostics) const
+{
+  return mWrapped->SupportsMimeType(aMimeType, aDiagnostics);
+}
+
+PlatformDecoderModule::ConversionRequired
+RemoteDecoderModule::DecoderNeedsConversion(const TrackInfo& aConfig) const
+{
+  return mWrapped->DecoderNeedsConversion(aConfig);
+}
+
+already_AddRefed<MediaDataDecoder>
+RemoteDecoderModule::CreateVideoDecoder(const CreateDecoderParams& aParams)
+{
+  if (!MediaPrefs::PDMUseGPUDecoder() ||
+      !aParams.mKnowsCompositor ||
+      aParams.mKnowsCompositor->GetTextureFactoryIdentifier().mParentProcessType != GeckoProcessType_GPU) {
+    return mWrapped->CreateVideoDecoder(aParams);
+  }
+
+  MediaDataDecoderCallback* callback = aParams.mCallback;
+  MOZ_ASSERT(callback->OnReaderTaskQueue());
+  RefPtr<RemoteVideoDecoder> object = new RemoteVideoDecoder(callback);
+
+  VideoInfo info = aParams.VideoConfig();
+
+  TextureFactoryIdentifier ident = aParams.mKnowsCompositor->GetTextureFactoryIdentifier();
+  VideoDecoderManagerChild::GetManagerThread()->Dispatch(NS_NewRunnableFunction([=]() {
+    object->mActor->InitIPDL(callback, info, ident);
+  }), NS_DISPATCH_NORMAL);
+
+  return object.forget();
+}
+
+} // namespace dom
+} // namespace mozilla