1 files changed, 187 insertions, 0 deletions
diff --git a/dom/media/mediasource/SourceBufferList.cpp b/dom/media/mediasource/SourceBufferList.cpp
new file mode 100644
index 0000000000..9a98f83a1c
--- /dev/null
+++ b/dom/media/mediasource/SourceBufferList.cpp
@@ -0,0 +1,187 @@
+/* -*- 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 "SourceBufferList.h"
+
+#include "AsyncEventRunner.h"
+#include "mozilla/ErrorResult.h"
+#include "mozilla/dom/SourceBufferListBinding.h"
+#include "mozilla/mozalloc.h"
+#include "nsCOMPtr.h"
+#include "nsIRunnable.h"
+#include "nsString.h"
+#include "nsThreadUtils.h"
+#include "mozilla/Logging.h"
+
+extern mozilla::LogModule* GetMediaSourceLog();
+extern mozilla::LogModule* GetMediaSourceAPILog();
+
+#define MSE_API(arg, ...)                                   \
+  MOZ_LOG(GetMediaSourceAPILog(), mozilla::LogLevel::Debug, \
+          ("SourceBufferList(%p)::%s: " arg, this, __func__, ##__VA_ARGS__))
+#define MSE_DEBUG(arg, ...)                              \
+  MOZ_LOG(GetMediaSourceLog(), mozilla::LogLevel::Debug, \
+          ("SourceBufferList(%p)::%s: " arg, this, __func__, ##__VA_ARGS__))
+
+struct JSContext;
+class JSObject;
+
+using TimeUnit = mozilla::media::TimeUnit;
+
+namespace mozilla::dom {
+
+SourceBufferList::~SourceBufferList() = default;
+
+SourceBuffer* SourceBufferList::IndexedGetter(uint32_t aIndex, bool& aFound) {
+  MOZ_ASSERT(NS_IsMainThread());
+  aFound = aIndex < mSourceBuffers.Length();
+
+  if (!aFound) {
+    return nullptr;
+  }
+  return mSourceBuffers[aIndex];
+}
+
+uint32_t SourceBufferList::Length() {
+  MOZ_ASSERT(NS_IsMainThread());
+  return mSourceBuffers.Length();
+}
+
+void SourceBufferList::Append(SourceBuffer* aSourceBuffer) {
+  MOZ_ASSERT(NS_IsMainThread());
+  mSourceBuffers.AppendElement(aSourceBuffer);
+  QueueAsyncSimpleEvent("addsourcebuffer");
+}
+
+void SourceBufferList::AppendSimple(SourceBuffer* aSourceBuffer) {
+  MOZ_ASSERT(NS_IsMainThread());
+  mSourceBuffers.AppendElement(aSourceBuffer);
+}
+
+void SourceBufferList::Remove(SourceBuffer* aSourceBuffer) {
+  MOZ_ASSERT(NS_IsMainThread());
+  MOZ_ALWAYS_TRUE(mSourceBuffers.RemoveElement(aSourceBuffer));
+  aSourceBuffer->Detach();
+  QueueAsyncSimpleEvent("removesourcebuffer");
+}
+
+bool SourceBufferList::Contains(SourceBuffer* aSourceBuffer) {
+  MOZ_ASSERT(NS_IsMainThread());
+  return mSourceBuffers.Contains(aSourceBuffer);
+}
+
+void SourceBufferList::Clear() {
+  MOZ_ASSERT(NS_IsMainThread());
+  for (uint32_t i = 0; i < mSourceBuffers.Length(); ++i) {
+    mSourceBuffers[i]->Detach();
+  }
+  mSourceBuffers.Clear();
+  QueueAsyncSimpleEvent("removesourcebuffer");
+}
+
+void SourceBufferList::ClearSimple() {
+  MOZ_ASSERT(NS_IsMainThread());
+  mSourceBuffers.Clear();
+}
+
+bool SourceBufferList::IsEmpty() {
+  MOZ_ASSERT(NS_IsMainThread());
+  return mSourceBuffers.IsEmpty();
+}
+
+bool SourceBufferList::AnyUpdating() {
+  MOZ_ASSERT(NS_IsMainThread());
+  for (uint32_t i = 0; i < mSourceBuffers.Length(); ++i) {
+    if (mSourceBuffers[i]->Updating()) {
+      return true;
+    }
+  }
+  return false;
+}
+
+void SourceBufferList::RangeRemoval(double aStart, double aEnd) {
+  MOZ_ASSERT(NS_IsMainThread());
+  MSE_DEBUG("RangeRemoval(aStart=%f, aEnd=%f)", aStart, aEnd);
+  for (uint32_t i = 0; i < mSourceBuffers.Length(); ++i) {
+    mSourceBuffers[i]->RangeRemoval(aStart, aEnd);
+  }
+}
+
+void SourceBufferList::Ended() {
+  MOZ_ASSERT(NS_IsMainThread());
+  for (uint32_t i = 0; i < mSourceBuffers.Length(); ++i) {
+    mSourceBuffers[i]->Ended();
+  }
+}
+
+TimeUnit SourceBufferList::GetHighestBufferedEndTime() {
+  MOZ_ASSERT(NS_IsMainThread());
+  TimeUnit highestEndTime = TimeUnit::Zero();
+  for (uint32_t i = 0; i < mSourceBuffers.Length(); ++i) {
+    highestEndTime =
+        std::max(highestEndTime, mSourceBuffers[i]->GetBufferedEnd());
+  }
+  return highestEndTime;
+}
+
+void SourceBufferList::DispatchSimpleEvent(const char* aName) {
+  MOZ_ASSERT(NS_IsMainThread());
+  MSE_API("Dispatch event '%s'", aName);
+  DispatchTrustedEvent(NS_ConvertUTF8toUTF16(aName));
+}
+
+void SourceBufferList::QueueAsyncSimpleEvent(const char* aName) {
+  MSE_DEBUG("Queue event '%s'", aName);
+  nsCOMPtr<nsIRunnable> event =
+      new AsyncEventRunner<SourceBufferList>(this, aName);
+  mAbstractMainThread->Dispatch(event.forget());
+}
+
+SourceBufferList::SourceBufferList(MediaSource* aMediaSource)
+    : DOMEventTargetHelper(aMediaSource->GetParentObject()),
+      mMediaSource(aMediaSource),
+      mAbstractMainThread(mMediaSource->AbstractMainThread()) {
+  MOZ_ASSERT(aMediaSource);
+}
+
+MediaSource* SourceBufferList::GetParentObject() const { return mMediaSource; }
+
+TimeUnit SourceBufferList::HighestStartTime() {
+  MOZ_ASSERT(NS_IsMainThread());
+  TimeUnit highestStartTime = TimeUnit::Zero();
+  for (auto& sourceBuffer : mSourceBuffers) {
+    highestStartTime =
+        std::max(sourceBuffer->HighestStartTime(), highestStartTime);
+  }
+  return highestStartTime;
+}
+
+TimeUnit SourceBufferList::HighestEndTime() {
+  MOZ_ASSERT(NS_IsMainThread());
+  TimeUnit highestEndTime = TimeUnit::Zero();
+  for (auto& sourceBuffer : mSourceBuffers) {
+    highestEndTime = std::max(sourceBuffer->HighestEndTime(), highestEndTime);
+  }
+  return highestEndTime;
+}
+
+JSObject* SourceBufferList::WrapObject(JSContext* aCx,
+                                       JS::Handle<JSObject*> aGivenProto) {
+  return SourceBufferList_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(SourceBufferList, DOMEventTargetHelper,
+                                   mMediaSource, mSourceBuffers)
+
+NS_IMPL_ADDREF_INHERITED(SourceBufferList, DOMEventTargetHelper)
+NS_IMPL_RELEASE_INHERITED(SourceBufferList, DOMEventTargetHelper)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(SourceBufferList)
+NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
+
+#undef MSE_API
+#undef MSE_DEBUG
+}  // namespace mozilla::dom