import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

2026-09-25 09:57:32 +09:00 · 2018-01-19 03:59:58 +08:00 · 2018-01-19 03:59:58 +08:00 · dcd9973243
commit dcd9973243
150858 changed files with 23884658 additions and 0 deletions
--- a/dom/media/mediasource/SourceBufferList.cpp
+++ b/dom/media/mediasource/SourceBufferList.cpp
@ -0,0 +1,225 @@
+/* -*- 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;
+
+namespace mozilla {
+
+namespace dom {
+
+SourceBufferList::~SourceBufferList()
+{
+}
+
+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();
+  }
+}
+
+double
+SourceBufferList::GetHighestBufferedEndTime()
+{
+  MOZ_ASSERT(NS_IsMainThread());
+  double highestEndTime = 0;
+  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);
+  NS_DispatchToMainThread(event);
+}
+
+SourceBufferList::SourceBufferList(MediaSource* aMediaSource)
+  : DOMEventTargetHelper(aMediaSource->GetParentObject())
+  , mMediaSource(aMediaSource)
+{
+  MOZ_ASSERT(aMediaSource);
+}
+
+MediaSource*
+SourceBufferList::GetParentObject() const
+{
+  return mMediaSource;
+}
+
+double
+SourceBufferList::HighestStartTime()
+{
+  MOZ_ASSERT(NS_IsMainThread());
+  double highestStartTime = 0;
+  for (auto& sourceBuffer : mSourceBuffers) {
+    highestStartTime =
+      std::max(sourceBuffer->HighestStartTime(), highestStartTime);
+  }
+  return highestStartTime;
+}
+
+double
+SourceBufferList::HighestEndTime()
+{
+  MOZ_ASSERT(NS_IsMainThread());
+  double highestEndTime = 0;
+  for (auto& sourceBuffer : mSourceBuffers) {
+    highestEndTime =
+      std::max(sourceBuffer->HighestEndTime(), highestEndTime);
+  }
+  return highestEndTime;
+}
+
+JSObject*
+SourceBufferList::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return SourceBufferListBinding::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_INHERITED(SourceBufferList)
+NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
+
+#undef MSE_API
+#undef MSE_DEBUG
+} // namespace dom
+
+} // namespace mozilla