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Diffstat (limited to 'dom/media/mediasource/SourceBufferList.cpp')
| -rw-r--r-- | dom/media/mediasource/SourceBufferList.cpp | 187 |
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 |