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-rw-r--r--dom/media/hls/HLSDecoder.cpp310
1 files changed, 310 insertions, 0 deletions
diff --git a/dom/media/hls/HLSDecoder.cpp b/dom/media/hls/HLSDecoder.cpp
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+++ b/dom/media/hls/HLSDecoder.cpp
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* 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 "HLSDecoder.h"
+#include "AndroidBridge.h"
+#include "base/process_util.h"
+#include "DecoderTraits.h"
+#include "HLSDemuxer.h"
+#include "HLSUtils.h"
+#include "JavaBuiltins.h"
+#include "MediaContainerType.h"
+#include "MediaDecoderStateMachine.h"
+#include "MediaFormatReader.h"
+#include "MediaShutdownManager.h"
+#include "mozilla/java/GeckoHLSResourceWrapperNatives.h"
+#include "nsContentUtils.h"
+#include "nsIChannel.h"
+#include "nsNetUtil.h"
+#include "nsThreadUtils.h"
+#include "mozilla/dom/HTMLMediaElement.h"
+#include "mozilla/NullPrincipal.h"
+#include "mozilla/StaticPrefs_media.h"
+
+namespace mozilla {
+
+class HLSResourceCallbacksSupport
+ : public java::GeckoHLSResourceWrapper::Callbacks::Natives<
+ HLSResourceCallbacksSupport> {
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(HLSResourceCallbacksSupport)
+ public:
+ typedef java::GeckoHLSResourceWrapper::Callbacks::Natives<
+ HLSResourceCallbacksSupport>
+ NativeCallbacks;
+ using NativeCallbacks::AttachNative;
+ using NativeCallbacks::DisposeNative;
+
+ explicit HLSResourceCallbacksSupport(HLSDecoder* aResource);
+ void Detach();
+ void OnLoad(jni::String::Param aUrl);
+ void OnDataArrived();
+ void OnError(int aErrorCode);
+
+ private:
+ ~HLSResourceCallbacksSupport() {}
+ Mutex mMutex MOZ_UNANNOTATED;
+ HLSDecoder* mDecoder;
+};
+
+HLSResourceCallbacksSupport::HLSResourceCallbacksSupport(HLSDecoder* aDecoder)
+ : mMutex("HLSResourceCallbacksSupport"), mDecoder(aDecoder) {
+ MOZ_ASSERT(mDecoder);
+}
+
+void HLSResourceCallbacksSupport::Detach() {
+ MOZ_ASSERT(NS_IsMainThread());
+ MutexAutoLock lock(mMutex);
+ mDecoder = nullptr;
+}
+
+void HLSResourceCallbacksSupport::OnLoad(jni::String::Param aUrl) {
+ MutexAutoLock lock(mMutex);
+ if (!mDecoder) {
+ return;
+ }
+ RefPtr<HLSResourceCallbacksSupport> self = this;
+ jni::String::GlobalRef url = std::move(aUrl);
+ NS_DispatchToMainThread(NS_NewRunnableFunction(
+ "HLSResourceCallbacksSupport::OnLoad", [self, url]() -> void {
+ if (self->mDecoder) {
+ self->mDecoder->NotifyLoad(url->ToCString());
+ }
+ }));
+}
+
+void HLSResourceCallbacksSupport::OnDataArrived() {
+ HLS_DEBUG("HLSResourceCallbacksSupport", "OnDataArrived.");
+ MutexAutoLock lock(mMutex);
+ if (!mDecoder) {
+ return;
+ }
+ RefPtr<HLSResourceCallbacksSupport> self = this;
+ NS_DispatchToMainThread(NS_NewRunnableFunction(
+ "HLSResourceCallbacksSupport::OnDataArrived", [self]() -> void {
+ if (self->mDecoder) {
+ self->mDecoder->NotifyDataArrived();
+ }
+ }));
+}
+
+void HLSResourceCallbacksSupport::OnError(int aErrorCode) {
+ HLS_DEBUG("HLSResourceCallbacksSupport", "onError(%d)", aErrorCode);
+ MutexAutoLock lock(mMutex);
+ if (!mDecoder) {
+ return;
+ }
+ RefPtr<HLSResourceCallbacksSupport> self = this;
+ NS_DispatchToMainThread(NS_NewRunnableFunction(
+ "HLSResourceCallbacksSupport::OnError", [self]() -> void {
+ if (self->mDecoder) {
+ // Since HLS source should be from the Internet, we treat all resource
+ // errors from GeckoHlsPlayer as network errors.
+ self->mDecoder->NetworkError(
+ MediaResult(NS_ERROR_FAILURE, "HLS error"));
+ }
+ }));
+}
+
+size_t HLSDecoder::sAllocatedInstances = 0;
+
+// static
+RefPtr<HLSDecoder> HLSDecoder::Create(MediaDecoderInit& aInit) {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ return sAllocatedInstances < StaticPrefs::media_hls_max_allocations()
+ ? new HLSDecoder(aInit)
+ : nullptr;
+}
+
+HLSDecoder::HLSDecoder(MediaDecoderInit& aInit) : MediaDecoder(aInit) {
+ MOZ_ASSERT(NS_IsMainThread());
+ sAllocatedInstances++;
+ HLS_DEBUG("HLSDecoder", "HLSDecoder(): allocated=%zu", sAllocatedInstances);
+}
+
+HLSDecoder::~HLSDecoder() {
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_ASSERT(sAllocatedInstances > 0);
+ sAllocatedInstances--;
+ HLS_DEBUG("HLSDecoder", "~HLSDecoder(): allocated=%zu", sAllocatedInstances);
+}
+
+MediaDecoderStateMachineBase* HLSDecoder::CreateStateMachine(
+ bool aDisableExternalEngine) {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ MediaFormatReaderInit init;
+ init.mVideoFrameContainer = GetVideoFrameContainer();
+ init.mKnowsCompositor = GetCompositor();
+ init.mCrashHelper = GetOwner()->CreateGMPCrashHelper();
+ init.mFrameStats = mFrameStats;
+ init.mMediaDecoderOwnerID = mOwner;
+ static Atomic<uint32_t> sTrackingIdCounter(0);
+ init.mTrackingId =
+ Some(TrackingId(TrackingId::Source::HLSDecoder, sTrackingIdCounter++,
+ TrackingId::TrackAcrossProcesses::Yes));
+ mReader = new MediaFormatReader(
+ init, new HLSDemuxer(mHLSResourceWrapper->GetPlayerId()));
+
+ return new MediaDecoderStateMachine(this, mReader);
+}
+
+bool HLSDecoder::IsEnabled() { return StaticPrefs::media_hls_enabled(); }
+
+bool HLSDecoder::IsSupportedType(const MediaContainerType& aContainerType) {
+ return IsEnabled() && DecoderTraits::IsHttpLiveStreamingType(aContainerType);
+}
+
+nsresult HLSDecoder::Load(nsIChannel* aChannel) {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ nsresult rv = NS_GetFinalChannelURI(aChannel, getter_AddRefs(mURI));
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+
+ mChannel = aChannel;
+ nsCString spec;
+ Unused << mURI->GetSpec(spec);
+ ;
+ HLSResourceCallbacksSupport::Init();
+ mJavaCallbacks = java::GeckoHLSResourceWrapper::Callbacks::New();
+ mCallbackSupport = new HLSResourceCallbacksSupport(this);
+ HLSResourceCallbacksSupport::AttachNative(mJavaCallbacks, mCallbackSupport);
+ mHLSResourceWrapper = java::GeckoHLSResourceWrapper::Create(
+ NS_ConvertUTF8toUTF16(spec), mJavaCallbacks);
+ MOZ_ASSERT(mHLSResourceWrapper);
+
+ rv = MediaShutdownManager::Instance().Register(this);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+ return CreateAndInitStateMachine(false);
+}
+
+void HLSDecoder::AddSizeOfResources(ResourceSizes* aSizes) {
+ MOZ_ASSERT(NS_IsMainThread());
+ // TODO: track JAVA wrappers.
+}
+
+already_AddRefed<nsIPrincipal> HLSDecoder::GetCurrentPrincipal() {
+ MOZ_ASSERT(NS_IsMainThread());
+ return do_AddRef(mContentPrincipal);
+}
+
+bool HLSDecoder::HadCrossOriginRedirects() {
+ MOZ_ASSERT(NS_IsMainThread());
+ // Bug 1478843
+ return false;
+}
+
+void HLSDecoder::Play() {
+ MOZ_ASSERT(NS_IsMainThread());
+ HLS_DEBUG("HLSDecoder", "MediaElement called Play");
+ mHLSResourceWrapper->Play();
+ return MediaDecoder::Play();
+}
+
+void HLSDecoder::Pause() {
+ MOZ_ASSERT(NS_IsMainThread());
+ HLS_DEBUG("HLSDecoder", "MediaElement called Pause");
+ mHLSResourceWrapper->Pause();
+ return MediaDecoder::Pause();
+}
+
+void HLSDecoder::Suspend() {
+ MOZ_ASSERT(NS_IsMainThread());
+ HLS_DEBUG("HLSDecoder", "Should suspend the resource fetching.");
+ mHLSResourceWrapper->Suspend();
+}
+
+void HLSDecoder::Resume() {
+ MOZ_ASSERT(NS_IsMainThread());
+ HLS_DEBUG("HLSDecoder", "Should resume the resource fetching.");
+ mHLSResourceWrapper->Resume();
+}
+
+void HLSDecoder::Shutdown() {
+ HLS_DEBUG("HLSDecoder", "Shutdown");
+ if (mCallbackSupport) {
+ mCallbackSupport->Detach();
+ }
+ if (mHLSResourceWrapper) {
+ mHLSResourceWrapper->Destroy();
+ mHLSResourceWrapper = nullptr;
+ }
+ if (mJavaCallbacks) {
+ HLSResourceCallbacksSupport::DisposeNative(mJavaCallbacks);
+ mJavaCallbacks = nullptr;
+ }
+ MediaDecoder::Shutdown();
+}
+
+void HLSDecoder::NotifyDataArrived() {
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_DIAGNOSTIC_ASSERT(!IsShutdown());
+ NotifyReaderDataArrived();
+ GetOwner()->DownloadProgressed();
+}
+
+void HLSDecoder::NotifyLoad(nsCString aMediaUrl) {
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_DIAGNOSTIC_ASSERT(!IsShutdown());
+ UpdateCurrentPrincipal(aMediaUrl);
+}
+
+// Should be called when the decoder loads media from a URL to ensure the
+// principal of the media element is appropriately set for CORS.
+void HLSDecoder::UpdateCurrentPrincipal(nsCString aMediaUrl) {
+ nsCOMPtr<nsIPrincipal> principal = GetContentPrincipal(aMediaUrl);
+ MOZ_DIAGNOSTIC_ASSERT(principal);
+
+ // Check the subsumption of old and new principals. Should be either
+ // equal or disjoint.
+ if (!mContentPrincipal) {
+ mContentPrincipal = principal;
+ } else if (principal->Equals(mContentPrincipal)) {
+ return;
+ } else if (!principal->Subsumes(mContentPrincipal) &&
+ !mContentPrincipal->Subsumes(principal)) {
+ // Principals are disjoint -- no access.
+ mContentPrincipal = NullPrincipal::Create(OriginAttributes());
+ } else {
+ MOZ_DIAGNOSTIC_ASSERT(false, "non-equal principals should be disjoint");
+ mContentPrincipal = nullptr;
+ }
+ MediaDecoder::NotifyPrincipalChanged();
+}
+
+already_AddRefed<nsIPrincipal> HLSDecoder::GetContentPrincipal(
+ nsCString aMediaUrl) {
+ nsCOMPtr<nsIURI> uri;
+ nsresult rv = NS_NewURI(getter_AddRefs(uri), aMediaUrl.Data());
+ NS_ENSURE_SUCCESS(rv, nullptr);
+ RefPtr<dom::HTMLMediaElement> element = GetOwner()->GetMediaElement();
+ NS_ENSURE_SUCCESS(rv, nullptr);
+ nsSecurityFlags securityFlags =
+ element->ShouldCheckAllowOrigin()
+ ? nsILoadInfo::SEC_REQUIRE_CORS_INHERITS_SEC_CONTEXT
+ : nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_INHERITS_SEC_CONTEXT;
+ if (element->GetCORSMode() == CORS_USE_CREDENTIALS) {
+ securityFlags |= nsILoadInfo::SEC_COOKIES_INCLUDE;
+ }
+ nsCOMPtr<nsIChannel> channel;
+ rv = NS_NewChannel(getter_AddRefs(channel), uri,
+ static_cast<dom::Element*>(element), securityFlags,
+ nsIContentPolicy::TYPE_INTERNAL_VIDEO);
+ NS_ENSURE_SUCCESS(rv, nullptr);
+ nsCOMPtr<nsIPrincipal> principal;
+ nsIScriptSecurityManager* secMan = nsContentUtils::GetSecurityManager();
+ if (!secMan) {
+ return nullptr;
+ }
+ secMan->GetChannelResultPrincipal(channel, getter_AddRefs(principal));
+ return principal.forget();
+}
+
+} // namespace mozilla