5196 lines
156 KiB
C++
5196 lines
156 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/HTMLMediaElement.h"
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#include "mozilla/dom/HTMLMediaElementBinding.h"
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#include "mozilla/dom/HTMLSourceElement.h"
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#include "mozilla/dom/ElementInlines.h"
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#include "mozilla/ArrayUtils.h"
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#include "mozilla/MathAlgorithms.h"
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#include "mozilla/AsyncEventDispatcher.h"
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#ifdef MOZ_EME
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#include "mozilla/dom/MediaEncryptedEvent.h"
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#endif
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#include "base/basictypes.h"
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#include "nsIDOMHTMLMediaElement.h"
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#include "nsIDOMHTMLSourceElement.h"
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#include "TimeRanges.h"
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#include "nsGenericHTMLElement.h"
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#include "nsAttrValueInlines.h"
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#include "nsPresContext.h"
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#include "nsIPresShell.h"
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#include "nsGkAtoms.h"
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#include "nsSize.h"
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#include "nsIFrame.h"
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#include "nsIDocument.h"
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#include "nsIDOMDocument.h"
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#include "nsIDocShell.h"
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#include "nsError.h"
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#include "nsNodeInfoManager.h"
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#include "nsNetUtil.h"
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#include "nsXPCOMStrings.h"
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#include "xpcpublic.h"
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#include "nsThreadUtils.h"
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#include "nsIThreadInternal.h"
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#include "nsContentUtils.h"
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#include "nsIRequest.h"
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#include "nsQueryObject.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsIXPConnect.h"
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#include "jsapi.h"
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#include "nsITimer.h"
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#include "MediaError.h"
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#include "MediaDecoder.h"
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#include "nsICategoryManager.h"
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#include "MediaResource.h"
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#include "nsIContentPolicy.h"
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#include "nsContentPolicyUtils.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsICachingChannel.h"
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#include "nsLayoutUtils.h"
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#include "nsVideoFrame.h"
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#include "Layers.h"
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#include <limits>
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#include "nsIAsyncVerifyRedirectCallback.h"
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#include "nsMediaFragmentURIParser.h"
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#include "nsURIHashKey.h"
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#include "nsJSUtils.h"
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#include "MediaStreamGraph.h"
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#include "nsIScriptError.h"
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#include "nsHostObjectProtocolHandler.h"
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#include "mozilla/dom/MediaSource.h"
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#include "MediaMetadataManager.h"
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#include "MediaSourceDecoder.h"
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#include "AudioStreamTrack.h"
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#include "VideoStreamTrack.h"
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#include "MediaTrackList.h"
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#include "AudioChannelService.h"
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#include "mozilla/dom/power/PowerManagerService.h"
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#include "mozilla/dom/WakeLock.h"
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#include "mozilla/dom/AudioTrack.h"
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#include "mozilla/dom/AudioTrackList.h"
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#include "mozilla/dom/VideoTrack.h"
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#include "mozilla/dom/VideoTrackList.h"
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#include "mozilla/dom/TextTrack.h"
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#include "nsIContentPolicy.h"
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#include "mozilla/Telemetry.h"
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#include "ImageContainer.h"
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#include "nsRange.h"
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#include <algorithm>
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#include <cmath>
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static mozilla::LazyLogModule gMediaElementLog("nsMediaElement");
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static mozilla::LazyLogModule gMediaElementEventsLog("nsMediaElementEvents");
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#define LOG(type, msg) MOZ_LOG(gMediaElementLog, type, msg)
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#define LOG_EVENT(type, msg) MOZ_LOG(gMediaElementEventsLog, type, msg)
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#include "nsIContentSecurityPolicy.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/FloatingPoint.h"
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#include "nsIPermissionManager.h"
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#include "nsContentTypeParser.h"
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#include "nsDocShell.h"
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#include "mozilla/EventStateManager.h"
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using namespace mozilla::layers;
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using mozilla::net::nsMediaFragmentURIParser;
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class MOZ_STACK_CLASS AutoNotifyAudioChannelAgent
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{
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RefPtr<mozilla::dom::HTMLMediaElement> mElement;
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bool mShouldNotify;
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MOZ_DECL_USE_GUARD_OBJECT_NOTIFIER;
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public:
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AutoNotifyAudioChannelAgent(mozilla::dom::HTMLMediaElement* aElement,
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bool aNotify
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MOZ_GUARD_OBJECT_NOTIFIER_PARAM)
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: mElement(aElement)
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, mShouldNotify(aNotify)
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{
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MOZ_GUARD_OBJECT_NOTIFIER_INIT;
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if (mShouldNotify) {
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// The audio channel agent may not exist now.
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if (mElement->MaybeCreateAudioChannelAgent()) {
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mElement->NotifyAudioChannelAgent(false);
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}
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}
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}
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~AutoNotifyAudioChannelAgent()
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{
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if (mShouldNotify) {
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// The audio channel agent is destroyed at this point.
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if (mElement->MaybeCreateAudioChannelAgent()) {
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mElement->NotifyAudioChannelAgent(true);
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}
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}
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}
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};
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namespace mozilla {
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namespace dom {
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// Number of milliseconds between progress events as defined by spec
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static const uint32_t PROGRESS_MS = 350;
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// Number of milliseconds of no data before a stall event is fired as defined by spec
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static const uint32_t STALL_MS = 3000;
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// Used by AudioChannel for suppresssing the volume to this ratio.
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#define FADED_VOLUME_RATIO 0.25
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// These constants are arbitrary
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// Minimum playbackRate for a media
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static const double MIN_PLAYBACKRATE = 0.25;
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// Maximum playbackRate for a media
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static const double MAX_PLAYBACKRATE = 5.0;
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// These are the limits beyonds which SoundTouch does not perform too well and when
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// speech is hard to understand anyway.
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// Threshold above which audio is muted
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static const double THRESHOLD_HIGH_PLAYBACKRATE_AUDIO = 4.0;
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// Threshold under which audio is muted
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static const double THRESHOLD_LOW_PLAYBACKRATE_AUDIO = 0.5;
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// Under certain conditions there may be no-one holding references to
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// a media element from script, DOM parent, etc, but the element may still
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// fire meaningful events in the future so we can't destroy it yet:
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// 1) If the element is delaying the load event (or would be, if it were
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// in a document), then events up to loadeddata or error could be fired,
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// so we need to stay alive.
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// 2) If the element is not paused and playback has not ended, then
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// we will (or might) play, sending timeupdate and ended events and possibly
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// audio output, so we need to stay alive.
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// 3) if the element is seeking then we will fire seeking events and possibly
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// start playing afterward, so we need to stay alive.
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// 4) If autoplay could start playback in this element (if we got enough data),
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// then we need to stay alive.
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// 5) if the element is currently loading, not suspended, and its source is
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// not a MediaSource, then script might be waiting for progress events or a
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// 'stalled' or 'suspend' event, so we need to stay alive.
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// If we're already suspended then (all other conditions being met),
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// it's OK to just disappear without firing any more events,
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// since we have the freedom to remain suspended indefinitely. Note
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// that we could use this 'suspended' loophole to garbage-collect a suspended
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// element in case 4 even if it had 'autoplay' set, but we choose not to.
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// If someone throws away all references to a loading 'autoplay' element
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// sound should still eventually play.
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// 6) If the source is a MediaSource, most loading events will not fire unless
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// appendBuffer() is called on a SourceBuffer, in which case something is
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// already referencing the SourceBuffer, which keeps the associated media
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// element alive. Further, a MediaSource will never time out the resource
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// fetch, and so should not keep the media element alive if it is
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// unreferenced. A pending 'stalled' event keeps the media element alive.
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//
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// Media elements owned by inactive documents (i.e. documents not contained in any
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// document viewer) should never hold a self-reference because none of the
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// above conditions are allowed: the element will stop loading and playing
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// and never resume loading or playing unless its owner document changes to
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// an active document (which can only happen if there is an external reference
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// to the element).
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// Media elements with no owner doc should be able to hold a self-reference.
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// Something native must have created the element and may expect it to
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// stay alive to play.
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// It's very important that any change in state which could change the value of
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// needSelfReference in AddRemoveSelfReference be followed by a call to
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// AddRemoveSelfReference before this element could die!
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// It's especially important if needSelfReference would change to 'true',
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// since if we neglect to add a self-reference, this element might be
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// garbage collected while there are still event listeners that should
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// receive events. If we neglect to remove the self-reference then the element
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// just lives longer than it needs to.
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class nsMediaEvent : public nsRunnable
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{
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public:
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explicit nsMediaEvent(HTMLMediaElement* aElement) :
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mElement(aElement),
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mLoadID(mElement->GetCurrentLoadID()) {}
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~nsMediaEvent() {}
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NS_IMETHOD Run() = 0;
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protected:
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bool IsCancelled() {
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return mElement->GetCurrentLoadID() != mLoadID;
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}
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RefPtr<HTMLMediaElement> mElement;
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uint32_t mLoadID;
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};
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class HTMLMediaElement::nsAsyncEventRunner : public nsMediaEvent
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{
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private:
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nsString mName;
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public:
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nsAsyncEventRunner(const nsAString& aName, HTMLMediaElement* aElement) :
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nsMediaEvent(aElement), mName(aName)
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{
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}
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NS_IMETHOD Run()
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{
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// Silently cancel if our load has been cancelled.
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if (IsCancelled())
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return NS_OK;
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return mElement->DispatchEvent(mName);
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}
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};
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class nsSourceErrorEventRunner : public nsMediaEvent
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{
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private:
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nsCOMPtr<nsIContent> mSource;
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public:
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nsSourceErrorEventRunner(HTMLMediaElement* aElement,
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nsIContent* aSource)
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: nsMediaEvent(aElement),
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mSource(aSource)
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{
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}
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NS_IMETHOD Run() {
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// Silently cancel if our load has been cancelled.
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if (IsCancelled())
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return NS_OK;
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LOG_EVENT(LogLevel::Debug, ("%p Dispatching simple event source error", mElement.get()));
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return nsContentUtils::DispatchTrustedEvent(mElement->OwnerDoc(),
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mSource,
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NS_LITERAL_STRING("error"),
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false,
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false);
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}
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};
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/**
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* There is a reference cycle involving this class: MediaLoadListener
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* holds a reference to the HTMLMediaElement, which holds a reference
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* to an nsIChannel, which holds a reference to this listener.
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* We break the reference cycle in OnStartRequest by clearing mElement.
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*/
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class HTMLMediaElement::MediaLoadListener final : public nsIStreamListener,
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public nsIChannelEventSink,
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public nsIInterfaceRequestor,
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public nsIObserver
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{
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~MediaLoadListener() {}
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NS_DECL_ISUPPORTS
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NS_DECL_NSIREQUESTOBSERVER
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NS_DECL_NSISTREAMLISTENER
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NS_DECL_NSICHANNELEVENTSINK
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NS_DECL_NSIOBSERVER
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NS_DECL_NSIINTERFACEREQUESTOR
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public:
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explicit MediaLoadListener(HTMLMediaElement* aElement)
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: mElement(aElement),
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mLoadID(aElement->GetCurrentLoadID())
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{
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MOZ_ASSERT(mElement, "Must pass an element to call back");
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}
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private:
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RefPtr<HTMLMediaElement> mElement;
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nsCOMPtr<nsIStreamListener> mNextListener;
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uint32_t mLoadID;
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};
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NS_IMPL_ISUPPORTS(HTMLMediaElement::MediaLoadListener, nsIRequestObserver,
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nsIStreamListener, nsIChannelEventSink,
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nsIInterfaceRequestor, nsIObserver)
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NS_IMETHODIMP
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HTMLMediaElement::MediaLoadListener::Observe(nsISupports* aSubject,
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const char* aTopic, const char16_t* aData)
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{
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nsContentUtils::UnregisterShutdownObserver(this);
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// Clear mElement to break cycle so we don't leak on shutdown
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mElement = nullptr;
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return NS_OK;
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}
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void HTMLMediaElement::ReportLoadError(const char* aMsg,
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const char16_t** aParams,
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uint32_t aParamCount)
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{
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nsContentUtils::ReportToConsole(nsIScriptError::warningFlag,
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NS_LITERAL_CSTRING("Media"),
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OwnerDoc(),
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nsContentUtils::eDOM_PROPERTIES,
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aMsg,
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aParams,
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aParamCount);
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}
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NS_IMETHODIMP HTMLMediaElement::MediaLoadListener::OnStartRequest(nsIRequest* aRequest, nsISupports* aContext)
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{
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nsContentUtils::UnregisterShutdownObserver(this);
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if (!mElement) {
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// We've been notified by the shutdown observer, and are shutting down.
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return NS_BINDING_ABORTED;
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}
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// The element is only needed until we've had a chance to call
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// InitializeDecoderForChannel. So make sure mElement is cleared here.
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RefPtr<HTMLMediaElement> element;
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element.swap(mElement);
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if (mLoadID != element->GetCurrentLoadID()) {
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// The channel has been cancelled before we had a chance to create
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// a decoder. Abort, don't dispatch an "error" event, as the new load
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// may not be in an error state.
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return NS_BINDING_ABORTED;
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}
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// Don't continue to load if the request failed or has been canceled.
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nsresult status;
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nsresult rv = aRequest->GetStatus(&status);
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NS_ENSURE_SUCCESS(rv, rv);
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if (NS_FAILED(status)) {
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if (element)
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element->NotifyLoadError();
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return status;
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}
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nsCOMPtr<nsIHttpChannel> hc = do_QueryInterface(aRequest);
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bool succeeded;
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if (hc && NS_SUCCEEDED(hc->GetRequestSucceeded(&succeeded)) && !succeeded) {
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element->NotifyLoadError();
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uint32_t responseStatus = 0;
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hc->GetResponseStatus(&responseStatus);
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nsAutoString code;
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code.AppendInt(responseStatus);
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nsAutoString src;
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element->GetCurrentSrc(src);
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const char16_t* params[] = { code.get(), src.get() };
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element->ReportLoadError("MediaLoadHttpError", params, ArrayLength(params));
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return NS_BINDING_ABORTED;
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}
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nsCOMPtr<nsIChannel> channel = do_QueryInterface(aRequest);
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if (channel &&
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element &&
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NS_SUCCEEDED(rv = element->InitializeDecoderForChannel(channel, getter_AddRefs(mNextListener))) &&
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mNextListener) {
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rv = mNextListener->OnStartRequest(aRequest, aContext);
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} else {
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// If InitializeDecoderForChannel() returned an error, fire a network
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// error.
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if (NS_FAILED(rv) && !mNextListener && element) {
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// Load failed, attempt to load the next candidate resource. If there
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// are none, this will trigger a MEDIA_ERR_SRC_NOT_SUPPORTED error.
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element->NotifyLoadError();
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}
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// If InitializeDecoderForChannel did not return a listener (but may
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// have otherwise succeeded), we abort the connection since we aren't
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// interested in keeping the channel alive ourselves.
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rv = NS_BINDING_ABORTED;
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}
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return rv;
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}
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NS_IMETHODIMP HTMLMediaElement::MediaLoadListener::OnStopRequest(nsIRequest* aRequest, nsISupports* aContext,
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nsresult aStatus)
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{
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if (mNextListener) {
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return mNextListener->OnStopRequest(aRequest, aContext, aStatus);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLMediaElement::MediaLoadListener::OnDataAvailable(nsIRequest* aRequest,
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nsISupports* aContext,
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nsIInputStream* aStream,
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uint64_t aOffset,
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uint32_t aCount)
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{
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if (!mNextListener) {
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NS_ERROR("Must have a chained listener; OnStartRequest should have canceled this request");
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return NS_BINDING_ABORTED;
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}
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return mNextListener->OnDataAvailable(aRequest, aContext, aStream, aOffset, aCount);
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}
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NS_IMETHODIMP HTMLMediaElement::MediaLoadListener::AsyncOnChannelRedirect(nsIChannel* aOldChannel,
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nsIChannel* aNewChannel,
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uint32_t aFlags,
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nsIAsyncVerifyRedirectCallback* cb)
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{
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// TODO is this really correct?? See bug #579329.
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if (mElement)
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mElement->OnChannelRedirect(aOldChannel, aNewChannel, aFlags);
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nsCOMPtr<nsIChannelEventSink> sink = do_QueryInterface(mNextListener);
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if (sink)
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return sink->AsyncOnChannelRedirect(aOldChannel, aNewChannel, aFlags, cb);
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cb->OnRedirectVerifyCallback(NS_OK);
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return NS_OK;
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}
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NS_IMETHODIMP HTMLMediaElement::MediaLoadListener::GetInterface(const nsIID & aIID, void **aResult)
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{
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return QueryInterface(aIID, aResult);
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}
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NS_IMPL_ADDREF_INHERITED(HTMLMediaElement, nsGenericHTMLElement)
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NS_IMPL_RELEASE_INHERITED(HTMLMediaElement, nsGenericHTMLElement)
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NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLMediaElement)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLMediaElement, nsGenericHTMLElement)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMediaSource)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSrcMediaSource)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSrcStream)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSrcAttrStream)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSourcePointer)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mLoadBlockedDoc)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSourceLoadCandidate)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAudioChannelAgent)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mError)
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for (uint32_t i = 0; i < tmp->mOutputStreams.Length(); ++i) {
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOutputStreams[i].mStream);
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}
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPlayed);
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTextTrackManager)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAudioTrackList)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mVideoTrackList)
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#ifdef MOZ_EME
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMediaKeys)
|
|
#endif
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(HTMLMediaElement, nsGenericHTMLElement)
|
|
if (tmp->mSrcStream) {
|
|
// Need to EndMediaStreamPlayback to clear mSrcStream and make sure everything
|
|
// gets unhooked correctly.
|
|
tmp->EndSrcMediaStreamPlayback();
|
|
}
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSrcAttrStream)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mMediaSource)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSrcMediaSource)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSourcePointer)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mLoadBlockedDoc)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSourceLoadCandidate)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mAudioChannelAgent)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mError)
|
|
for (uint32_t i = 0; i < tmp->mOutputStreams.Length(); ++i) {
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mOutputStreams[i].mStream)
|
|
}
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mPlayed)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mTextTrackManager)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mAudioTrackList)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mVideoTrackList)
|
|
#ifdef MOZ_EME
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mMediaKeys)
|
|
#endif
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
|
|
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(HTMLMediaElement)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMHTMLMediaElement)
|
|
NS_INTERFACE_MAP_ENTRY(nsIObserver)
|
|
NS_INTERFACE_MAP_ENTRY(nsIAudioChannelAgentCallback)
|
|
NS_INTERFACE_MAP_END_INHERITING(nsGenericHTMLElement)
|
|
|
|
// nsIDOMHTMLMediaElement
|
|
NS_IMPL_URI_ATTR(HTMLMediaElement, Src, src)
|
|
NS_IMPL_BOOL_ATTR(HTMLMediaElement, Controls, controls)
|
|
NS_IMPL_BOOL_ATTR(HTMLMediaElement, Autoplay, autoplay)
|
|
NS_IMPL_BOOL_ATTR(HTMLMediaElement, Loop, loop)
|
|
NS_IMPL_BOOL_ATTR(HTMLMediaElement, DefaultMuted, muted)
|
|
NS_IMPL_ENUM_ATTR_DEFAULT_VALUE(HTMLMediaElement, Preload, preload, nullptr)
|
|
|
|
NS_IMETHODIMP
|
|
HTMLMediaElement::GetMozAudioChannelType(nsAString& aValue)
|
|
{
|
|
nsString defaultValue;
|
|
AudioChannelService::GetDefaultAudioChannelString(defaultValue);
|
|
|
|
NS_ConvertUTF16toUTF8 str(defaultValue);
|
|
GetEnumAttr(nsGkAtoms::mozaudiochannel, str.get(), aValue);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLMediaElement::SetMozAudioChannelType(const nsAString& aValue)
|
|
{
|
|
return SetAttrHelper(nsGkAtoms::mozaudiochannel, aValue);
|
|
}
|
|
|
|
NS_IMETHODIMP_(bool)
|
|
HTMLMediaElement::IsVideo()
|
|
{
|
|
return false;
|
|
}
|
|
|
|
already_AddRefed<MediaSource>
|
|
HTMLMediaElement::GetMozMediaSourceObject() const
|
|
{
|
|
RefPtr<MediaSource> source = mMediaSource;
|
|
return source.forget();
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream>
|
|
HTMLMediaElement::GetSrcObject() const
|
|
{
|
|
NS_ASSERTION(!mSrcAttrStream || mSrcAttrStream->GetPlaybackStream(),
|
|
"MediaStream should have been set up properly");
|
|
RefPtr<DOMMediaStream> stream = mSrcAttrStream;
|
|
return stream.forget();
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::SetSrcObject(DOMMediaStream& aValue)
|
|
{
|
|
SetMozSrcObject(&aValue);
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::SetSrcObject(DOMMediaStream* aValue)
|
|
{
|
|
mSrcAttrStream = aValue;
|
|
UpdateAudioChannelPlayingState();
|
|
DoLoad();
|
|
}
|
|
|
|
// TODO: Remove prefixed versions soon (1183495)
|
|
|
|
already_AddRefed<DOMMediaStream>
|
|
HTMLMediaElement::GetMozSrcObject() const
|
|
{
|
|
NS_ASSERTION(!mSrcAttrStream || mSrcAttrStream->GetPlaybackStream(),
|
|
"MediaStream should have been set up properly");
|
|
RefPtr<DOMMediaStream> stream = mSrcAttrStream;
|
|
return stream.forget();
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::SetMozSrcObject(DOMMediaStream& aValue)
|
|
{
|
|
SetMozSrcObject(&aValue);
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::SetMozSrcObject(DOMMediaStream* aValue)
|
|
{
|
|
mSrcAttrStream = aValue;
|
|
UpdateAudioChannelPlayingState();
|
|
DoLoad();
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetMozAutoplayEnabled(bool *aAutoplayEnabled)
|
|
{
|
|
*aAutoplayEnabled = mAutoplayEnabled;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetError(nsIDOMMediaError * *aError)
|
|
{
|
|
NS_IF_ADDREF(*aError = mError);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
HTMLMediaElement::Ended()
|
|
{
|
|
if (MediaStream* stream = GetSrcMediaStream()) {
|
|
return stream->IsFinished();
|
|
}
|
|
|
|
if (mDecoder) {
|
|
return mDecoder->IsEndedOrShutdown();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetEnded(bool* aEnded)
|
|
{
|
|
*aEnded = Ended();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetCurrentSrc(nsAString & aCurrentSrc)
|
|
{
|
|
nsAutoCString src;
|
|
GetCurrentSpec(src);
|
|
aCurrentSrc = NS_ConvertUTF8toUTF16(src);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetNetworkState(uint16_t* aNetworkState)
|
|
{
|
|
*aNetworkState = NetworkState();
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
HTMLMediaElement::OnChannelRedirect(nsIChannel* aChannel,
|
|
nsIChannel* aNewChannel,
|
|
uint32_t aFlags)
|
|
{
|
|
NS_ASSERTION(aChannel == mChannel, "Channels should match!");
|
|
mChannel = aNewChannel;
|
|
|
|
// Handle forwarding of Range header so that the intial detection
|
|
// of seeking support (via result code 206) works across redirects.
|
|
nsCOMPtr<nsIHttpChannel> http = do_QueryInterface(aChannel);
|
|
NS_ENSURE_STATE(http);
|
|
|
|
NS_NAMED_LITERAL_CSTRING(rangeHdr, "Range");
|
|
|
|
nsAutoCString rangeVal;
|
|
if (NS_SUCCEEDED(http->GetRequestHeader(rangeHdr, rangeVal))) {
|
|
NS_ENSURE_STATE(!rangeVal.IsEmpty());
|
|
|
|
http = do_QueryInterface(aNewChannel);
|
|
NS_ENSURE_STATE(http);
|
|
|
|
nsresult rv = http->SetRequestHeader(rangeHdr, rangeVal, false);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void HTMLMediaElement::ShutdownDecoder()
|
|
{
|
|
RemoveMediaElementFromURITable();
|
|
NS_ASSERTION(mDecoder, "Must have decoder to shut down");
|
|
mDecoder->Shutdown();
|
|
mDecoder = nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::AbortExistingLoads()
|
|
{
|
|
#ifdef MOZ_EME
|
|
// If there is no existing decoder then we don't have anything to
|
|
// report. This prevents reporting the initial load from an
|
|
// empty video element as a failed EME load.
|
|
if (mDecoder) {
|
|
ReportEMETelemetry();
|
|
}
|
|
#endif
|
|
// Abort any already-running instance of the resource selection algorithm.
|
|
mLoadWaitStatus = NOT_WAITING;
|
|
|
|
// Set a new load ID. This will cause events which were enqueued
|
|
// with a different load ID to silently be cancelled.
|
|
mCurrentLoadID++;
|
|
|
|
bool fireTimeUpdate = false;
|
|
|
|
// When aborting the existing loads, empty the objects in audio track list and
|
|
// video track list, no events (in particular, no removetrack events) are
|
|
// fired as part of this. Ending MediaStream sends track ended notifications,
|
|
// so we empty the track lists prior.
|
|
AudioTracks()->EmptyTracks();
|
|
VideoTracks()->EmptyTracks();
|
|
|
|
if (mDecoder) {
|
|
fireTimeUpdate = mDecoder->GetCurrentTime() != 0.0;
|
|
ShutdownDecoder();
|
|
}
|
|
if (mSrcStream) {
|
|
EndSrcMediaStreamPlayback();
|
|
}
|
|
|
|
RemoveMediaElementFromURITable();
|
|
mLoadingSrc = nullptr;
|
|
mMediaSource = nullptr;
|
|
|
|
if (mNetworkState == nsIDOMHTMLMediaElement::NETWORK_LOADING ||
|
|
mNetworkState == nsIDOMHTMLMediaElement::NETWORK_IDLE)
|
|
{
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("abort"));
|
|
}
|
|
|
|
mError = nullptr;
|
|
mLoadedDataFired = false;
|
|
mAutoplaying = true;
|
|
mIsLoadingFromSourceChildren = false;
|
|
mSuspendedAfterFirstFrame = false;
|
|
mAllowSuspendAfterFirstFrame = true;
|
|
mHaveQueuedSelectResource = false;
|
|
mSuspendedForPreloadNone = false;
|
|
mDownloadSuspendedByCache = false;
|
|
mMediaInfo = MediaInfo();
|
|
mIsEncrypted = false;
|
|
#ifdef MOZ_EME
|
|
mPendingEncryptedInitData.mInitDatas.Clear();
|
|
#endif // MOZ_EME
|
|
mSourcePointer = nullptr;
|
|
|
|
mTags = nullptr;
|
|
|
|
if (mNetworkState != nsIDOMHTMLMediaElement::NETWORK_EMPTY) {
|
|
NS_ASSERTION(!mDecoder && !mSrcStream, "How did someone setup a new stream/decoder already?");
|
|
// ChangeNetworkState() will call UpdateAudioChannelPlayingState()
|
|
// indirectly which depends on mPaused. So we need to update mPaused first.
|
|
mPaused = true;
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_EMPTY);
|
|
ChangeReadyState(nsIDOMHTMLMediaElement::HAVE_NOTHING);
|
|
|
|
if (fireTimeUpdate) {
|
|
// Since we destroyed the decoder above, the current playback position
|
|
// will now be reported as 0. The playback position was non-zero when
|
|
// we destroyed the decoder, so fire a timeupdate event so that the
|
|
// change will be reflected in the controls.
|
|
FireTimeUpdate(false);
|
|
}
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("emptied"));
|
|
UpdateAudioChannelPlayingState();
|
|
}
|
|
|
|
// We may have changed mPaused, mAutoplaying, and other
|
|
// things which can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
|
|
mIsRunningSelectResource = false;
|
|
}
|
|
|
|
void HTMLMediaElement::NoSupportedMediaSourceError()
|
|
{
|
|
NS_ASSERTION(mNetworkState == NETWORK_LOADING,
|
|
"Not loading during source selection?");
|
|
|
|
mError = new MediaError(this, nsIDOMMediaError::MEDIA_ERR_SRC_NOT_SUPPORTED);
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_NO_SOURCE);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("error"));
|
|
ChangeDelayLoadStatus(false);
|
|
}
|
|
|
|
typedef void (HTMLMediaElement::*SyncSectionFn)();
|
|
|
|
// Runs a "synchronous section", a function that must run once the event loop
|
|
// has reached a "stable state". See:
|
|
// http://www.whatwg.org/specs/web-apps/current-work/multipage/webappapis.html#synchronous-section
|
|
class nsSyncSection : public nsMediaEvent
|
|
{
|
|
private:
|
|
nsCOMPtr<nsIRunnable> mRunnable;
|
|
public:
|
|
nsSyncSection(HTMLMediaElement* aElement,
|
|
nsIRunnable* aRunnable) :
|
|
nsMediaEvent(aElement),
|
|
mRunnable(aRunnable)
|
|
{
|
|
}
|
|
|
|
NS_IMETHOD Run() {
|
|
// Silently cancel if our load has been cancelled.
|
|
if (IsCancelled())
|
|
return NS_OK;
|
|
mRunnable->Run();
|
|
return NS_OK;
|
|
}
|
|
};
|
|
|
|
void HTMLMediaElement::RunInStableState(nsIRunnable* aRunnable)
|
|
{
|
|
nsCOMPtr<nsIRunnable> event = new nsSyncSection(this, aRunnable);
|
|
nsContentUtils::RunInStableState(event.forget());
|
|
}
|
|
|
|
void HTMLMediaElement::QueueLoadFromSourceTask()
|
|
{
|
|
ChangeDelayLoadStatus(true);
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_LOADING);
|
|
RunInStableState(
|
|
NS_NewRunnableMethod(this, &HTMLMediaElement::LoadFromSourceChildren));
|
|
}
|
|
|
|
void HTMLMediaElement::QueueSelectResourceTask()
|
|
{
|
|
// Don't allow multiple async select resource calls to be queued.
|
|
if (mHaveQueuedSelectResource)
|
|
return;
|
|
mHaveQueuedSelectResource = true;
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_NO_SOURCE);
|
|
RunInStableState(
|
|
NS_NewRunnableMethod(this, &HTMLMediaElement::SelectResourceWrapper));
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::Load()
|
|
{
|
|
if (mIsRunningLoadMethod) {
|
|
return NS_OK;
|
|
}
|
|
|
|
mIsDoingExplicitLoad = true;
|
|
DoLoad();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void HTMLMediaElement::DoLoad()
|
|
{
|
|
if (mIsRunningLoadMethod) {
|
|
return;
|
|
}
|
|
|
|
SetPlayedOrSeeked(false);
|
|
mIsRunningLoadMethod = true;
|
|
AbortExistingLoads();
|
|
SetPlaybackRate(mDefaultPlaybackRate);
|
|
QueueSelectResourceTask();
|
|
ResetState();
|
|
mIsRunningLoadMethod = false;
|
|
}
|
|
|
|
void HTMLMediaElement::ResetState()
|
|
{
|
|
// There might be a pending MediaDecoder::PlaybackPositionChanged() which
|
|
// will overwrite |mMediaInfo.mVideo.mDisplay| in UpdateMediaSize() to give
|
|
// staled videoWidth and videoHeight. We have to call ForgetElement() here
|
|
// such that the staled callbacks won't reach us.
|
|
if (mVideoFrameContainer) {
|
|
mVideoFrameContainer->ForgetElement();
|
|
mVideoFrameContainer = nullptr;
|
|
}
|
|
}
|
|
|
|
static bool HasSourceChildren(nsIContent* aElement)
|
|
{
|
|
for (nsIContent* child = aElement->GetFirstChild();
|
|
child;
|
|
child = child->GetNextSibling()) {
|
|
if (child->IsHTMLElement(nsGkAtoms::source))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void HTMLMediaElement::SelectResourceWrapper()
|
|
{
|
|
SelectResource();
|
|
mIsRunningSelectResource = false;
|
|
mHaveQueuedSelectResource = false;
|
|
mIsDoingExplicitLoad = false;
|
|
}
|
|
|
|
void HTMLMediaElement::SelectResource()
|
|
{
|
|
if (!mSrcAttrStream && !HasAttr(kNameSpaceID_None, nsGkAtoms::src) &&
|
|
!HasSourceChildren(this)) {
|
|
// The media element has neither a src attribute nor any source
|
|
// element children, abort the load.
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_EMPTY);
|
|
ChangeDelayLoadStatus(false);
|
|
return;
|
|
}
|
|
|
|
ChangeDelayLoadStatus(true);
|
|
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_LOADING);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("loadstart"));
|
|
|
|
// Delay setting mIsRunningSeletResource until after UpdatePreloadAction
|
|
// so that we don't lose our state change by bailing out of the preload
|
|
// state update
|
|
UpdatePreloadAction();
|
|
mIsRunningSelectResource = true;
|
|
|
|
// If we have a 'src' attribute, use that exclusively.
|
|
nsAutoString src;
|
|
if (mSrcAttrStream) {
|
|
SetupSrcMediaStreamPlayback(mSrcAttrStream);
|
|
} else if (GetAttr(kNameSpaceID_None, nsGkAtoms::src, src)) {
|
|
nsCOMPtr<nsIURI> uri;
|
|
nsresult rv = NewURIFromString(src, getter_AddRefs(uri));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
LOG(LogLevel::Debug, ("%p Trying load from src=%s", this, NS_ConvertUTF16toUTF8(src).get()));
|
|
NS_ASSERTION(!mIsLoadingFromSourceChildren,
|
|
"Should think we're not loading from source children by default");
|
|
|
|
RemoveMediaElementFromURITable();
|
|
mLoadingSrc = uri;
|
|
mMediaSource = mSrcMediaSource;
|
|
UpdatePreloadAction();
|
|
if (mPreloadAction == HTMLMediaElement::PRELOAD_NONE &&
|
|
!IsMediaStreamURI(mLoadingSrc)) {
|
|
// preload:none media, suspend the load here before we make any
|
|
// network requests.
|
|
SuspendLoad();
|
|
return;
|
|
}
|
|
|
|
rv = LoadResource();
|
|
if (NS_SUCCEEDED(rv)) {
|
|
return;
|
|
}
|
|
} else {
|
|
const char16_t* params[] = { src.get() };
|
|
ReportLoadError("MediaLoadInvalidURI", params, ArrayLength(params));
|
|
}
|
|
NoSupportedMediaSourceError();
|
|
} else {
|
|
// Otherwise, the source elements will be used.
|
|
mIsLoadingFromSourceChildren = true;
|
|
LoadFromSourceChildren();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyLoadError()
|
|
{
|
|
if (!mIsLoadingFromSourceChildren) {
|
|
LOG(LogLevel::Debug, ("NotifyLoadError(), no supported media error"));
|
|
NoSupportedMediaSourceError();
|
|
} else if (mSourceLoadCandidate) {
|
|
DispatchAsyncSourceError(mSourceLoadCandidate);
|
|
QueueLoadFromSourceTask();
|
|
} else {
|
|
NS_WARNING("Should know the source we were loading from!");
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyMediaTrackEnabled(MediaTrack* aTrack)
|
|
{
|
|
if (!aTrack) {
|
|
return;
|
|
}
|
|
#ifdef DEBUG
|
|
nsString id;
|
|
aTrack->GetId(id);
|
|
|
|
LOG(LogLevel::Debug, ("MediaElement %p MediaStreamTrack enabled with id %s",
|
|
this, NS_ConvertUTF16toUTF8(id).get()));
|
|
#endif
|
|
|
|
// TODO: We are dealing with single audio track and video track for now.
|
|
if (AudioTrack* track = aTrack->AsAudioTrack()) {
|
|
if (!track->Enabled()) {
|
|
SetMutedInternal(mMuted | MUTED_BY_AUDIO_TRACK);
|
|
} else {
|
|
SetMutedInternal(mMuted & ~MUTED_BY_AUDIO_TRACK);
|
|
}
|
|
} else if (VideoTrack* track = aTrack->AsVideoTrack()) {
|
|
mDisableVideo = !track->Selected();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyMediaStreamTracksAvailable(DOMMediaStream* aStream)
|
|
{
|
|
if (!mSrcStream || mSrcStream != aStream) {
|
|
return;
|
|
}
|
|
|
|
LOG(LogLevel::Debug, ("MediaElement %p MediaStream tracks available", this));
|
|
|
|
bool videoHasChanged = IsVideo() && HasVideo() != !VideoTracks()->IsEmpty();
|
|
|
|
if (videoHasChanged) {
|
|
// We are a video element and HasVideo() changed so update the screen
|
|
// wakelock
|
|
NotifyOwnerDocumentActivityChangedInternal();
|
|
}
|
|
|
|
mWatchManager.ManualNotify(&HTMLMediaElement::UpdateReadyStateInternal);
|
|
}
|
|
|
|
void HTMLMediaElement::LoadFromSourceChildren()
|
|
{
|
|
NS_ASSERTION(mDelayingLoadEvent,
|
|
"Should delay load event (if in document) during load");
|
|
NS_ASSERTION(mIsLoadingFromSourceChildren,
|
|
"Must remember we're loading from source children");
|
|
|
|
nsIDocument* parentDoc = OwnerDoc()->GetParentDocument();
|
|
if (parentDoc) {
|
|
parentDoc->FlushPendingNotifications(Flush_Layout);
|
|
}
|
|
|
|
while (true) {
|
|
nsIContent* child = GetNextSource();
|
|
if (!child) {
|
|
// Exhausted candidates, wait for more candidates to be appended to
|
|
// the media element.
|
|
mLoadWaitStatus = WAITING_FOR_SOURCE;
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_NO_SOURCE);
|
|
ChangeDelayLoadStatus(false);
|
|
ReportLoadError("MediaLoadExhaustedCandidates");
|
|
return;
|
|
}
|
|
|
|
// Must have src attribute.
|
|
nsAutoString src;
|
|
if (!child->GetAttr(kNameSpaceID_None, nsGkAtoms::src, src)) {
|
|
ReportLoadError("MediaLoadSourceMissingSrc");
|
|
DispatchAsyncSourceError(child);
|
|
continue;
|
|
}
|
|
|
|
// If we have a type attribute, it must be a supported type.
|
|
nsAutoString type;
|
|
if (child->GetAttr(kNameSpaceID_None, nsGkAtoms::type, type) &&
|
|
GetCanPlay(type) == CANPLAY_NO) {
|
|
DispatchAsyncSourceError(child);
|
|
const char16_t* params[] = { type.get(), src.get() };
|
|
ReportLoadError("MediaLoadUnsupportedTypeAttribute", params, ArrayLength(params));
|
|
continue;
|
|
}
|
|
nsAutoString media;
|
|
HTMLSourceElement *childSrc = HTMLSourceElement::FromContent(child);
|
|
MOZ_ASSERT(childSrc, "Expect child to be HTMLSourceElement");
|
|
if (childSrc && !childSrc->MatchesCurrentMedia()) {
|
|
DispatchAsyncSourceError(child);
|
|
const char16_t* params[] = { media.get(), src.get() };
|
|
ReportLoadError("MediaLoadSourceMediaNotMatched", params, ArrayLength(params));
|
|
continue;
|
|
}
|
|
LOG(LogLevel::Debug, ("%p Trying load from <source>=%s type=%s media=%s", this,
|
|
NS_ConvertUTF16toUTF8(src).get(), NS_ConvertUTF16toUTF8(type).get(),
|
|
NS_ConvertUTF16toUTF8(media).get()));
|
|
|
|
nsCOMPtr<nsIURI> uri;
|
|
NewURIFromString(src, getter_AddRefs(uri));
|
|
if (!uri) {
|
|
DispatchAsyncSourceError(child);
|
|
const char16_t* params[] = { src.get() };
|
|
ReportLoadError("MediaLoadInvalidURI", params, ArrayLength(params));
|
|
continue;
|
|
}
|
|
|
|
RemoveMediaElementFromURITable();
|
|
mLoadingSrc = uri;
|
|
mMediaSource = childSrc->GetSrcMediaSource();
|
|
NS_ASSERTION(mNetworkState == nsIDOMHTMLMediaElement::NETWORK_LOADING,
|
|
"Network state should be loading");
|
|
|
|
if (mPreloadAction == HTMLMediaElement::PRELOAD_NONE &&
|
|
!IsMediaStreamURI(mLoadingSrc)) {
|
|
// preload:none media, suspend the load here before we make any
|
|
// network requests.
|
|
SuspendLoad();
|
|
return;
|
|
}
|
|
|
|
if (NS_SUCCEEDED(LoadResource())) {
|
|
return;
|
|
}
|
|
|
|
// If we fail to load, loop back and try loading the next resource.
|
|
DispatchAsyncSourceError(child);
|
|
}
|
|
NS_NOTREACHED("Execution should not reach here!");
|
|
}
|
|
|
|
void HTMLMediaElement::SuspendLoad()
|
|
{
|
|
mSuspendedForPreloadNone = true;
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_IDLE);
|
|
ChangeDelayLoadStatus(false);
|
|
}
|
|
|
|
void HTMLMediaElement::ResumeLoad(PreloadAction aAction)
|
|
{
|
|
NS_ASSERTION(mSuspendedForPreloadNone,
|
|
"Must be halted for preload:none to resume from preload:none suspended load.");
|
|
mSuspendedForPreloadNone = false;
|
|
mPreloadAction = aAction;
|
|
ChangeDelayLoadStatus(true);
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_LOADING);
|
|
if (!mIsLoadingFromSourceChildren) {
|
|
// We were loading from the element's src attribute.
|
|
if (NS_FAILED(LoadResource())) {
|
|
NoSupportedMediaSourceError();
|
|
}
|
|
} else {
|
|
// We were loading from a child <source> element. Try to resume the
|
|
// load of that child, and if that fails, try the next child.
|
|
if (NS_FAILED(LoadResource())) {
|
|
LoadFromSourceChildren();
|
|
}
|
|
}
|
|
}
|
|
|
|
static bool IsAutoplayEnabled()
|
|
{
|
|
return Preferences::GetBool("media.autoplay.enabled");
|
|
}
|
|
|
|
static bool UseAudioChannelAPI()
|
|
{
|
|
return Preferences::GetBool("media.useAudioChannelAPI");
|
|
}
|
|
|
|
void HTMLMediaElement::UpdatePreloadAction()
|
|
{
|
|
PreloadAction nextAction = PRELOAD_UNDEFINED;
|
|
// If autoplay is set, or we're playing, we should always preload data,
|
|
// as we'll need it to play.
|
|
if ((IsAutoplayEnabled() && HasAttr(kNameSpaceID_None, nsGkAtoms::autoplay)) ||
|
|
!mPaused)
|
|
{
|
|
nextAction = HTMLMediaElement::PRELOAD_ENOUGH;
|
|
} else {
|
|
// Find the appropriate preload action by looking at the attribute.
|
|
const nsAttrValue* val = mAttrsAndChildren.GetAttr(nsGkAtoms::preload,
|
|
kNameSpaceID_None);
|
|
// MSE doesn't work if preload is none, so it ignores the pref when src is
|
|
// from MSE.
|
|
uint32_t preloadDefault = mMediaSource ?
|
|
HTMLMediaElement::PRELOAD_ATTR_METADATA :
|
|
Preferences::GetInt("media.preload.default",
|
|
HTMLMediaElement::PRELOAD_ATTR_METADATA);
|
|
uint32_t preloadAuto =
|
|
Preferences::GetInt("media.preload.auto",
|
|
HTMLMediaElement::PRELOAD_ENOUGH);
|
|
if (!val) {
|
|
// Attribute is not set. Use the preload action specified by the
|
|
// media.preload.default pref, or just preload metadata if not present.
|
|
nextAction = static_cast<PreloadAction>(preloadDefault);
|
|
} else if (val->Type() == nsAttrValue::eEnum) {
|
|
PreloadAttrValue attr = static_cast<PreloadAttrValue>(val->GetEnumValue());
|
|
if (attr == HTMLMediaElement::PRELOAD_ATTR_EMPTY ||
|
|
attr == HTMLMediaElement::PRELOAD_ATTR_AUTO)
|
|
{
|
|
nextAction = static_cast<PreloadAction>(preloadAuto);
|
|
} else if (attr == HTMLMediaElement::PRELOAD_ATTR_METADATA) {
|
|
nextAction = HTMLMediaElement::PRELOAD_METADATA;
|
|
} else if (attr == HTMLMediaElement::PRELOAD_ATTR_NONE) {
|
|
nextAction = HTMLMediaElement::PRELOAD_NONE;
|
|
}
|
|
} else {
|
|
// Use the suggested "missing value default" of "metadata", or the value
|
|
// specified by the media.preload.default, if present.
|
|
nextAction = static_cast<PreloadAction>(preloadDefault);
|
|
}
|
|
}
|
|
|
|
if (nextAction == HTMLMediaElement::PRELOAD_NONE && mIsDoingExplicitLoad) {
|
|
nextAction = HTMLMediaElement::PRELOAD_METADATA;
|
|
}
|
|
|
|
mPreloadAction = nextAction;
|
|
|
|
if (nextAction == HTMLMediaElement::PRELOAD_ENOUGH) {
|
|
if (mSuspendedForPreloadNone) {
|
|
// Our load was previouly suspended due to the media having preload
|
|
// value "none". The preload value has changed to preload:auto, so
|
|
// resume the load.
|
|
ResumeLoad(PRELOAD_ENOUGH);
|
|
} else {
|
|
// Preload as much of the video as we can, i.e. don't suspend after
|
|
// the first frame.
|
|
StopSuspendingAfterFirstFrame();
|
|
}
|
|
|
|
} else if (nextAction == HTMLMediaElement::PRELOAD_METADATA) {
|
|
// Ensure that the video can be suspended after first frame.
|
|
mAllowSuspendAfterFirstFrame = true;
|
|
if (mSuspendedForPreloadNone) {
|
|
// Our load was previouly suspended due to the media having preload
|
|
// value "none". The preload value has changed to preload:metadata, so
|
|
// resume the load. We'll pause the load again after we've read the
|
|
// metadata.
|
|
ResumeLoad(PRELOAD_METADATA);
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult HTMLMediaElement::LoadResource()
|
|
{
|
|
NS_ASSERTION(mDelayingLoadEvent,
|
|
"Should delay load event (if in document) during load");
|
|
|
|
if (mChannel) {
|
|
mChannel->Cancel(NS_BINDING_ABORTED);
|
|
mChannel = nullptr;
|
|
}
|
|
|
|
// Check if media is allowed for the docshell.
|
|
nsCOMPtr<nsIDocShell> docShell = OwnerDoc()->GetDocShell();
|
|
if (docShell && !docShell->GetAllowMedia()) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Set the media element's CORS mode only when loading a resource
|
|
mCORSMode = AttrValueToCORSMode(GetParsedAttr(nsGkAtoms::crossorigin));
|
|
|
|
#ifdef MOZ_EME
|
|
if (mMediaKeys &&
|
|
!IsMediaSourceURI(mLoadingSrc) &&
|
|
Preferences::GetBool("media.eme.mse-only", true)) {
|
|
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
|
|
}
|
|
#endif
|
|
|
|
HTMLMediaElement* other = LookupMediaElementURITable(mLoadingSrc);
|
|
if (other && other->mDecoder) {
|
|
// Clone it.
|
|
nsresult rv = InitializeDecoderAsClone(other->mDecoder);
|
|
if (NS_SUCCEEDED(rv))
|
|
return rv;
|
|
}
|
|
|
|
if (IsMediaStreamURI(mLoadingSrc)) {
|
|
RefPtr<DOMMediaStream> stream;
|
|
nsresult rv = NS_GetStreamForMediaStreamURI(mLoadingSrc, getter_AddRefs(stream));
|
|
if (NS_FAILED(rv)) {
|
|
nsAutoString spec;
|
|
GetCurrentSrc(spec);
|
|
const char16_t* params[] = { spec.get() };
|
|
ReportLoadError("MediaLoadInvalidURI", params, ArrayLength(params));
|
|
return rv;
|
|
}
|
|
SetupSrcMediaStreamPlayback(stream);
|
|
return NS_OK;
|
|
}
|
|
|
|
if (mMediaSource) {
|
|
RefPtr<MediaSourceDecoder> decoder = new MediaSourceDecoder(this);
|
|
if (!mMediaSource->Attach(decoder)) {
|
|
// TODO: Handle failure: run "If the media data cannot be fetched at
|
|
// all, due to network errors, causing the user agent to give up
|
|
// trying to fetch the resource" section of resource fetch algorithm.
|
|
decoder->Shutdown();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
RefPtr<MediaResource> resource =
|
|
MediaSourceDecoder::CreateResource(mMediaSource->GetPrincipal());
|
|
if (IsAutoplayEnabled()) {
|
|
mJoinLatency.Start();
|
|
}
|
|
return FinishDecoderSetup(decoder, resource, nullptr);
|
|
}
|
|
|
|
// determine what security checks need to be performed in AsyncOpen2().
|
|
nsSecurityFlags securityFlags =
|
|
ShouldCheckAllowOrigin() ? nsILoadInfo::SEC_REQUIRE_CORS_DATA_INHERITS :
|
|
nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_INHERITS;
|
|
|
|
if (GetCORSMode() == CORS_USE_CREDENTIALS) {
|
|
securityFlags |= nsILoadInfo::SEC_COOKIES_INCLUDE;
|
|
}
|
|
|
|
MOZ_ASSERT(IsAnyOfHTMLElements(nsGkAtoms::audio, nsGkAtoms::video));
|
|
nsContentPolicyType contentPolicyType = IsHTMLElement(nsGkAtoms::audio) ?
|
|
nsIContentPolicy::TYPE_INTERNAL_AUDIO : nsIContentPolicy::TYPE_INTERNAL_VIDEO;
|
|
|
|
nsCOMPtr<nsILoadGroup> loadGroup = GetDocumentLoadGroup();
|
|
nsCOMPtr<nsIChannel> channel;
|
|
nsresult rv = NS_NewChannel(getter_AddRefs(channel),
|
|
mLoadingSrc,
|
|
static_cast<Element*>(this),
|
|
securityFlags,
|
|
contentPolicyType,
|
|
loadGroup,
|
|
nullptr, // aCallbacks
|
|
nsICachingChannel::LOAD_BYPASS_LOCAL_CACHE_IF_BUSY |
|
|
nsIChannel::LOAD_MEDIA_SNIFFER_OVERRIDES_CONTENT_TYPE |
|
|
nsIChannel::LOAD_CALL_CONTENT_SNIFFERS);
|
|
|
|
NS_ENSURE_SUCCESS(rv,rv);
|
|
|
|
// The listener holds a strong reference to us. This creates a
|
|
// reference cycle, once we've set mChannel, which is manually broken
|
|
// in the listener's OnStartRequest method after it is finished with
|
|
// the element. The cycle will also be broken if we get a shutdown
|
|
// notification before OnStartRequest fires. Necko guarantees that
|
|
// OnStartRequest will eventually fire if we don't shut down first.
|
|
RefPtr<MediaLoadListener> loadListener = new MediaLoadListener(this);
|
|
|
|
channel->SetNotificationCallbacks(loadListener);
|
|
|
|
nsCOMPtr<nsIHttpChannel> hc = do_QueryInterface(channel);
|
|
if (hc) {
|
|
// Use a byte range request from the start of the resource.
|
|
// This enables us to detect if the stream supports byte range
|
|
// requests, and therefore seeking, early.
|
|
hc->SetRequestHeader(NS_LITERAL_CSTRING("Range"),
|
|
NS_LITERAL_CSTRING("bytes=0-"),
|
|
false);
|
|
|
|
SetRequestHeaders(hc);
|
|
}
|
|
|
|
rv = channel->AsyncOpen2(loadListener);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Else the channel must be open and starting to download. If it encounters
|
|
// a non-catastrophic failure, it will set a new task to continue loading
|
|
// another candidate. It's safe to set it as mChannel now.
|
|
mChannel = channel;
|
|
|
|
// loadListener will be unregistered either on shutdown or when
|
|
// OnStartRequest for the channel we just opened fires.
|
|
nsContentUtils::RegisterShutdownObserver(loadListener);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLMediaElement::LoadWithChannel(nsIChannel* aChannel,
|
|
nsIStreamListener** aListener)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aChannel);
|
|
NS_ENSURE_ARG_POINTER(aListener);
|
|
|
|
*aListener = nullptr;
|
|
|
|
// Make sure we don't reenter during synchronous abort events.
|
|
if (mIsRunningLoadMethod)
|
|
return NS_OK;
|
|
mIsRunningLoadMethod = true;
|
|
AbortExistingLoads();
|
|
mIsRunningLoadMethod = false;
|
|
|
|
nsresult rv = aChannel->GetOriginalURI(getter_AddRefs(mLoadingSrc));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
ChangeDelayLoadStatus(true);
|
|
rv = InitializeDecoderForChannel(aChannel, aListener);
|
|
if (NS_FAILED(rv)) {
|
|
ChangeDelayLoadStatus(false);
|
|
return rv;
|
|
}
|
|
|
|
SetPlaybackRate(mDefaultPlaybackRate);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("loadstart"));
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetReadyState(uint16_t* aReadyState)
|
|
{
|
|
*aReadyState = ReadyState();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
HTMLMediaElement::Seeking() const
|
|
{
|
|
return mDecoder && mDecoder->IsSeeking();
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetSeeking(bool* aSeeking)
|
|
{
|
|
*aSeeking = Seeking();
|
|
return NS_OK;
|
|
}
|
|
|
|
double
|
|
HTMLMediaElement::CurrentTime() const
|
|
{
|
|
if (MediaStream* stream = GetSrcMediaStream()) {
|
|
if (mSrcStreamPausedCurrentTime >= 0) {
|
|
return mSrcStreamPausedCurrentTime;
|
|
}
|
|
return stream->StreamTimeToSeconds(stream->GetCurrentTime());
|
|
}
|
|
|
|
if (mDefaultPlaybackStartPosition == 0.0 && mDecoder) {
|
|
return mDecoder->GetCurrentTime();
|
|
}
|
|
|
|
return mDefaultPlaybackStartPosition;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetCurrentTime(double* aCurrentTime)
|
|
{
|
|
*aCurrentTime = CurrentTime();
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::FastSeek(double aTime, ErrorResult& aRv)
|
|
{
|
|
Seek(aTime, SeekTarget::PrevSyncPoint, aRv);
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::SetCurrentTime(double aCurrentTime, ErrorResult& aRv)
|
|
{
|
|
Seek(aCurrentTime, SeekTarget::Accurate, aRv);
|
|
}
|
|
|
|
/**
|
|
* Check if aValue is inside a range of aRanges, and if so sets aIsInRanges
|
|
* to true and put the range index in aIntervalIndex. If aValue is not
|
|
* inside a range, aIsInRanges is set to false, and aIntervalIndex
|
|
* is set to the index of the range which ends immediately before aValue
|
|
* (and can be -1 if aValue is before aRanges.Start(0)). Returns NS_OK
|
|
* on success, and NS_ERROR_FAILURE on failure.
|
|
*/
|
|
static nsresult
|
|
IsInRanges(dom::TimeRanges& aRanges,
|
|
double aValue,
|
|
bool& aIsInRanges,
|
|
int32_t& aIntervalIndex)
|
|
{
|
|
aIsInRanges = false;
|
|
uint32_t length;
|
|
nsresult rv = aRanges.GetLength(&length);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
for (uint32_t i = 0; i < length; i++) {
|
|
double start, end;
|
|
rv = aRanges.Start(i, &start);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
if (start > aValue) {
|
|
aIntervalIndex = i - 1;
|
|
return NS_OK;
|
|
}
|
|
rv = aRanges.End(i, &end);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
if (aValue <= end) {
|
|
aIntervalIndex = i;
|
|
aIsInRanges = true;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
aIntervalIndex = length - 1;
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::Seek(double aTime,
|
|
SeekTarget::Type aSeekType,
|
|
ErrorResult& aRv)
|
|
{
|
|
// aTime should be non-NaN.
|
|
MOZ_ASSERT(!mozilla::IsNaN(aTime));
|
|
|
|
// Detect if user has interacted with element by seeking so that
|
|
// play will not be blocked when initiated by a script.
|
|
if (EventStateManager::IsHandlingUserInput() || nsContentUtils::LegacyIsCallerChromeOrNativeCode()) {
|
|
mHasUserInteraction = true;
|
|
}
|
|
|
|
StopSuspendingAfterFirstFrame();
|
|
|
|
if (mSrcStream) {
|
|
// do nothing since media streams have an empty Seekable range.
|
|
return;
|
|
}
|
|
|
|
if (mPlayed && mCurrentPlayRangeStart != -1.0) {
|
|
double rangeEndTime = CurrentTime();
|
|
LOG(LogLevel::Debug, ("%p Adding \'played\' a range : [%f, %f]", this, mCurrentPlayRangeStart, rangeEndTime));
|
|
// Multiple seek without playing, or seek while playing.
|
|
if (mCurrentPlayRangeStart != rangeEndTime) {
|
|
mPlayed->Add(mCurrentPlayRangeStart, rangeEndTime);
|
|
}
|
|
// Reset the current played range start time. We'll re-set it once
|
|
// the seek completes.
|
|
mCurrentPlayRangeStart = -1.0;
|
|
}
|
|
|
|
if (mReadyState == nsIDOMHTMLMediaElement::HAVE_NOTHING) {
|
|
mDefaultPlaybackStartPosition = aTime;
|
|
return;
|
|
}
|
|
|
|
if (!mDecoder) {
|
|
// mDecoder must always be set in order to reach this point.
|
|
NS_ASSERTION(mDecoder, "SetCurrentTime failed: no decoder");
|
|
return;
|
|
}
|
|
|
|
// Clamp the seek target to inside the seekable ranges.
|
|
RefPtr<dom::TimeRanges> seekable = new dom::TimeRanges(ToSupports(OwnerDoc()));
|
|
media::TimeIntervals seekableIntervals = mDecoder->GetSeekable();
|
|
if (seekableIntervals.IsInvalid()) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
seekableIntervals.ToTimeRanges(seekable);
|
|
uint32_t length = 0;
|
|
seekable->GetLength(&length);
|
|
if (!length) {
|
|
return;
|
|
}
|
|
|
|
// If the position we want to seek to is not in a seekable range, we seek
|
|
// to the closest position in the seekable ranges instead. If two positions
|
|
// are equally close, we seek to the closest position from the currentTime.
|
|
// See seeking spec, point 7 :
|
|
// http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#seeking
|
|
int32_t range = 0;
|
|
bool isInRange = false;
|
|
if (NS_FAILED(IsInRanges(*seekable, aTime, isInRange, range))) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
if (!isInRange) {
|
|
if (range != -1) {
|
|
// |range + 1| can't be negative, because the only possible negative value
|
|
// for |range| is -1.
|
|
if (uint32_t(range + 1) < length) {
|
|
double leftBound, rightBound;
|
|
if (NS_FAILED(seekable->End(range, &leftBound))) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
if (NS_FAILED(seekable->Start(range + 1, &rightBound))) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
double distanceLeft = Abs(leftBound - aTime);
|
|
double distanceRight = Abs(rightBound - aTime);
|
|
if (distanceLeft == distanceRight) {
|
|
double currentTime = CurrentTime();
|
|
distanceLeft = Abs(leftBound - currentTime);
|
|
distanceRight = Abs(rightBound - currentTime);
|
|
}
|
|
aTime = (distanceLeft < distanceRight) ? leftBound : rightBound;
|
|
} else {
|
|
// Seek target is after the end last range in seekable data.
|
|
// Clamp the seek target to the end of the last seekable range.
|
|
if (NS_FAILED(seekable->End(length - 1, &aTime))) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
}
|
|
} else {
|
|
// aTime is before the first range in |seekable|, the closest point we can
|
|
// seek to is the start of the first range.
|
|
seekable->Start(0, &aTime);
|
|
}
|
|
}
|
|
|
|
// TODO: The spec requires us to update the current time to reflect the
|
|
// actual seek target before beginning the synchronous section, but
|
|
// that requires changing all MediaDecoderReaders to support telling
|
|
// us the fastSeek target, and it's currently not possible to get
|
|
// this information as we don't yet control the demuxer for all
|
|
// MediaDecoderReaders.
|
|
|
|
mPlayingBeforeSeek = IsPotentiallyPlaying();
|
|
// Set the Variable if the Seekstarted while active playing
|
|
if (mPlayingThroughTheAudioChannel) {
|
|
mPlayingThroughTheAudioChannelBeforeSeek = true;
|
|
}
|
|
|
|
// The media backend is responsible for dispatching the timeupdate
|
|
// event if it changes the playback position as a result of the seek.
|
|
LOG(LogLevel::Debug, ("%p SetCurrentTime(%f) starting seek", this, aTime));
|
|
nsresult rv = mDecoder->Seek(aTime, aSeekType);
|
|
if (NS_FAILED(rv)) {
|
|
aRv.Throw(rv);
|
|
}
|
|
|
|
// We changed whether we're seeking so we need to AddRemoveSelfReference.
|
|
AddRemoveSelfReference();
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::SetCurrentTime(double aCurrentTime)
|
|
{
|
|
// Detect for a NaN and invalid values.
|
|
if (mozilla::IsNaN(aCurrentTime)) {
|
|
LOG(LogLevel::Debug, ("%p SetCurrentTime(%f) failed: bad time", this, aCurrentTime));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
ErrorResult rv;
|
|
SetCurrentTime(aCurrentTime, rv);
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
double
|
|
HTMLMediaElement::Duration() const
|
|
{
|
|
if (mSrcStream) {
|
|
return std::numeric_limits<double>::infinity();
|
|
}
|
|
|
|
if (mDecoder) {
|
|
return mDecoder->GetDuration();
|
|
}
|
|
|
|
return std::numeric_limits<double>::quiet_NaN();
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetDuration(double* aDuration)
|
|
{
|
|
*aDuration = Duration();
|
|
return NS_OK;
|
|
}
|
|
|
|
already_AddRefed<TimeRanges>
|
|
HTMLMediaElement::Seekable() const
|
|
{
|
|
RefPtr<TimeRanges> ranges = new TimeRanges(ToSupports(OwnerDoc()));
|
|
if (mDecoder && mReadyState > nsIDOMHTMLMediaElement::HAVE_NOTHING) {
|
|
mDecoder->GetSeekable().ToTimeRanges(ranges);
|
|
}
|
|
return ranges.forget();
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetSeekable(nsIDOMTimeRanges** aSeekable)
|
|
{
|
|
RefPtr<TimeRanges> ranges = Seekable();
|
|
ranges.forget(aSeekable);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetPaused(bool* aPaused)
|
|
{
|
|
*aPaused = Paused();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
already_AddRefed<TimeRanges>
|
|
HTMLMediaElement::Played()
|
|
{
|
|
RefPtr<TimeRanges> ranges = new TimeRanges(ToSupports(OwnerDoc()));
|
|
|
|
uint32_t timeRangeCount = 0;
|
|
if (mPlayed) {
|
|
mPlayed->GetLength(&timeRangeCount);
|
|
}
|
|
for (uint32_t i = 0; i < timeRangeCount; i++) {
|
|
double begin;
|
|
double end;
|
|
mPlayed->Start(i, &begin);
|
|
mPlayed->End(i, &end);
|
|
ranges->Add(begin, end);
|
|
}
|
|
|
|
if (mCurrentPlayRangeStart != -1.0) {
|
|
double now = CurrentTime();
|
|
if (mCurrentPlayRangeStart != now) {
|
|
ranges->Add(mCurrentPlayRangeStart, now);
|
|
}
|
|
}
|
|
|
|
ranges->Normalize();
|
|
return ranges.forget();
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetPlayed(nsIDOMTimeRanges** aPlayed)
|
|
{
|
|
RefPtr<TimeRanges> ranges = Played();
|
|
ranges.forget(aPlayed);
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::Pause(ErrorResult& aRv)
|
|
{
|
|
if (mNetworkState == nsIDOMHTMLMediaElement::NETWORK_EMPTY) {
|
|
LOG(LogLevel::Debug, ("Loading due to Pause()"));
|
|
DoLoad();
|
|
} else if (mDecoder) {
|
|
mDecoder->Pause();
|
|
}
|
|
|
|
bool oldPaused = mPaused;
|
|
mPaused = true;
|
|
mAutoplaying = false;
|
|
// We changed mPaused and mAutoplaying which can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
UpdateSrcMediaStreamPlaying();
|
|
UpdateAudioChannelPlayingState();
|
|
|
|
if (!oldPaused) {
|
|
FireTimeUpdate(false);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("pause"));
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::Pause()
|
|
{
|
|
ErrorResult rv;
|
|
Pause(rv);
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetVolume(double* aVolume)
|
|
{
|
|
*aVolume = Volume();
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::SetVolume(double aVolume, ErrorResult& aRv)
|
|
{
|
|
if (aVolume < 0.0 || aVolume > 1.0) {
|
|
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
|
|
return;
|
|
}
|
|
|
|
if (aVolume == mVolume)
|
|
return;
|
|
|
|
mVolume = aVolume;
|
|
|
|
// Here we want just to update the volume.
|
|
SetVolumeInternal();
|
|
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("volumechange"));
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::SetVolume(double aVolume)
|
|
{
|
|
ErrorResult rv;
|
|
SetVolume(aVolume, rv);
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::MozGetMetadata(JSContext* cx,
|
|
JS::MutableHandle<JSObject*> aRetval,
|
|
ErrorResult& aRv)
|
|
{
|
|
if (mReadyState < nsIDOMHTMLMediaElement::HAVE_METADATA) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
|
|
JS::Rooted<JSObject*> tags(cx, JS_NewPlainObject(cx));
|
|
if (!tags) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
if (mTags) {
|
|
for (auto iter = mTags->ConstIter(); !iter.Done(); iter.Next()) {
|
|
nsString wideValue = NS_ConvertUTF8toUTF16(iter.UserData());
|
|
JS::Rooted<JSString*> string(cx,
|
|
JS_NewUCStringCopyZ(cx, wideValue.Data()));
|
|
if (!string || !JS_DefineProperty(cx, tags, iter.Key().Data(), string,
|
|
JSPROP_ENUMERATE)) {
|
|
NS_WARNING("couldn't create metadata object!");
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
aRetval.set(tags);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLMediaElement::MozGetMetadata(JSContext* cx, JS::MutableHandle<JS::Value> aValue)
|
|
{
|
|
ErrorResult rv;
|
|
JS::Rooted<JSObject*> obj(cx);
|
|
MozGetMetadata(cx, &obj, rv);
|
|
if (!rv.Failed()) {
|
|
MOZ_ASSERT(obj);
|
|
aValue.setObject(*obj);
|
|
}
|
|
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetMuted(bool* aMuted)
|
|
{
|
|
*aMuted = Muted();
|
|
return NS_OK;
|
|
}
|
|
|
|
void HTMLMediaElement::SetMutedInternal(uint32_t aMuted)
|
|
{
|
|
uint32_t oldMuted = mMuted;
|
|
mMuted = aMuted;
|
|
|
|
if (!!aMuted == !!oldMuted) {
|
|
return;
|
|
}
|
|
|
|
SetVolumeInternal();
|
|
}
|
|
|
|
void HTMLMediaElement::SetVolumeInternal()
|
|
{
|
|
float effectiveVolume = ComputedVolume();
|
|
|
|
if (mDecoder) {
|
|
mDecoder->SetVolume(effectiveVolume);
|
|
} else if (MediaStream* stream = GetSrcMediaStream()) {
|
|
if (mSrcStreamIsPlaying) {
|
|
stream->SetAudioOutputVolume(this, effectiveVolume);
|
|
}
|
|
}
|
|
|
|
UpdateAudioChannelPlayingState();
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::SetMuted(bool aMuted)
|
|
{
|
|
if (aMuted == Muted()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (aMuted) {
|
|
SetMutedInternal(mMuted | MUTED_BY_CONTENT);
|
|
} else {
|
|
SetMutedInternal(mMuted & ~MUTED_BY_CONTENT);
|
|
}
|
|
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("volumechange"));
|
|
return NS_OK;
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream>
|
|
HTMLMediaElement::CaptureStreamInternal(bool aFinishWhenEnded,
|
|
MediaStreamGraph* aGraph)
|
|
{
|
|
nsIDOMWindow* window = OwnerDoc()->GetInnerWindow();
|
|
if (!window) {
|
|
return nullptr;
|
|
}
|
|
#ifdef MOZ_EME
|
|
if (ContainsRestrictedContent()) {
|
|
return nullptr;
|
|
}
|
|
#endif
|
|
|
|
if (!aGraph) {
|
|
MediaStreamGraph::GraphDriverType graphDriverType =
|
|
HasAudio() ? MediaStreamGraph::AUDIO_THREAD_DRIVER
|
|
: MediaStreamGraph::SYSTEM_THREAD_DRIVER;
|
|
aGraph = MediaStreamGraph::GetInstance(graphDriverType, mAudioChannel);
|
|
}
|
|
|
|
if (!mOutputStreams.IsEmpty() &&
|
|
aGraph != mOutputStreams[0].mStream->GetInputStream()->Graph()) {
|
|
return nullptr;
|
|
}
|
|
|
|
OutputMediaStream* out = mOutputStreams.AppendElement();
|
|
out->mStream = DOMMediaStream::CreateTrackUnionStream(window, aGraph);
|
|
RefPtr<nsIPrincipal> principal = GetCurrentPrincipal();
|
|
out->mStream->CombineWithPrincipal(principal);
|
|
out->mStream->SetCORSMode(mCORSMode);
|
|
out->mFinishWhenEnded = aFinishWhenEnded;
|
|
|
|
mAudioCaptured = true;
|
|
if (mDecoder) {
|
|
mDecoder->AddOutputStream(out->mStream->GetInputStream()->AsProcessedStream(),
|
|
aFinishWhenEnded);
|
|
if (mReadyState >= HAVE_METADATA) {
|
|
// Expose the tracks to JS directly.
|
|
if (HasAudio()) {
|
|
TrackID audioTrackId = mMediaInfo.mAudio.mTrackId;
|
|
out->mStream->CreateOwnDOMTrack(audioTrackId, MediaSegment::AUDIO);
|
|
}
|
|
if (HasVideo()) {
|
|
TrackID videoTrackId = mMediaInfo.mVideo.mTrackId;
|
|
out->mStream->CreateOwnDOMTrack(videoTrackId, MediaSegment::VIDEO);
|
|
}
|
|
}
|
|
}
|
|
RefPtr<DOMMediaStream> result = out->mStream;
|
|
return result.forget();
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream>
|
|
HTMLMediaElement::MozCaptureStream(ErrorResult& aRv,
|
|
MediaStreamGraph* aGraph)
|
|
{
|
|
RefPtr<DOMMediaStream> stream = CaptureStreamInternal(false, aGraph);
|
|
if (!stream) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
return stream.forget();
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream>
|
|
HTMLMediaElement::MozCaptureStreamUntilEnded(ErrorResult& aRv,
|
|
MediaStreamGraph* aGraph)
|
|
{
|
|
RefPtr<DOMMediaStream> stream = CaptureStreamInternal(true, aGraph);
|
|
if (!stream) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
return stream.forget();
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetMozAudioCaptured(bool* aCaptured)
|
|
{
|
|
*aCaptured = MozAudioCaptured();
|
|
return NS_OK;
|
|
}
|
|
|
|
class MediaElementSetForURI : public nsURIHashKey {
|
|
public:
|
|
explicit MediaElementSetForURI(const nsIURI* aKey) : nsURIHashKey(aKey) {}
|
|
MediaElementSetForURI(const MediaElementSetForURI& toCopy)
|
|
: nsURIHashKey(toCopy), mElements(toCopy.mElements) {}
|
|
nsTArray<HTMLMediaElement*> mElements;
|
|
};
|
|
|
|
typedef nsTHashtable<MediaElementSetForURI> MediaElementURITable;
|
|
// Elements in this table must have non-null mDecoder and mLoadingSrc, and those
|
|
// can't change while the element is in the table. The table is keyed by
|
|
// the element's mLoadingSrc. Each entry has a list of all elements with the
|
|
// same mLoadingSrc.
|
|
static MediaElementURITable* gElementTable;
|
|
|
|
#ifdef DEBUG
|
|
static bool
|
|
URISafeEquals(nsIURI* a1, nsIURI* a2)
|
|
{
|
|
if (!a1 || !a2) {
|
|
// Consider two empty URIs *not* equal!
|
|
return false;
|
|
}
|
|
bool equal = false;
|
|
nsresult rv = a1->Equals(a2, &equal);
|
|
return NS_SUCCEEDED(rv) && equal;
|
|
}
|
|
// Returns the number of times aElement appears in the media element table
|
|
// for aURI. If this returns other than 0 or 1, there's a bug somewhere!
|
|
static unsigned
|
|
MediaElementTableCount(HTMLMediaElement* aElement, nsIURI* aURI)
|
|
{
|
|
if (!gElementTable || !aElement) {
|
|
return 0;
|
|
}
|
|
uint32_t uriCount = 0;
|
|
uint32_t otherCount = 0;
|
|
for (auto it = gElementTable->ConstIter(); !it.Done(); it.Next()) {
|
|
MediaElementSetForURI* entry = it.Get();
|
|
uint32_t count = 0;
|
|
for (const auto& elem : entry->mElements) {
|
|
if (elem == aElement) {
|
|
count++;
|
|
}
|
|
}
|
|
if (URISafeEquals(aURI, entry->GetKey())) {
|
|
uriCount = count;
|
|
} else {
|
|
otherCount += count;
|
|
}
|
|
}
|
|
NS_ASSERTION(otherCount == 0, "Should not have entries for unknown URIs");
|
|
return uriCount;
|
|
}
|
|
#endif
|
|
|
|
void
|
|
HTMLMediaElement::AddMediaElementToURITable()
|
|
{
|
|
NS_ASSERTION(mDecoder && mDecoder->GetResource(), "Call this only with decoder Load called");
|
|
NS_ASSERTION(MediaElementTableCount(this, mLoadingSrc) == 0,
|
|
"Should not have entry for element in element table before addition");
|
|
if (!gElementTable) {
|
|
gElementTable = new MediaElementURITable();
|
|
}
|
|
MediaElementSetForURI* entry = gElementTable->PutEntry(mLoadingSrc);
|
|
entry->mElements.AppendElement(this);
|
|
NS_ASSERTION(MediaElementTableCount(this, mLoadingSrc) == 1,
|
|
"Should have a single entry for element in element table after addition");
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::RemoveMediaElementFromURITable()
|
|
{
|
|
if (!mDecoder || !mLoadingSrc || !gElementTable) {
|
|
return;
|
|
}
|
|
MediaElementSetForURI* entry = gElementTable->GetEntry(mLoadingSrc);
|
|
if (!entry) {
|
|
return;
|
|
}
|
|
entry->mElements.RemoveElement(this);
|
|
if (entry->mElements.IsEmpty()) {
|
|
gElementTable->RemoveEntry(entry);
|
|
if (gElementTable->Count() == 0) {
|
|
delete gElementTable;
|
|
gElementTable = nullptr;
|
|
}
|
|
}
|
|
NS_ASSERTION(MediaElementTableCount(this, mLoadingSrc) == 0,
|
|
"After remove, should no longer have an entry in element table");
|
|
}
|
|
|
|
HTMLMediaElement*
|
|
HTMLMediaElement::LookupMediaElementURITable(nsIURI* aURI)
|
|
{
|
|
if (!gElementTable) {
|
|
return nullptr;
|
|
}
|
|
MediaElementSetForURI* entry = gElementTable->GetEntry(aURI);
|
|
if (!entry) {
|
|
return nullptr;
|
|
}
|
|
for (uint32_t i = 0; i < entry->mElements.Length(); ++i) {
|
|
HTMLMediaElement* elem = entry->mElements[i];
|
|
bool equal;
|
|
// Look for elements that have the same principal and CORS mode.
|
|
// Ditto for anything else that could cause us to send different headers.
|
|
if (NS_SUCCEEDED(elem->NodePrincipal()->Equals(NodePrincipal(), &equal)) && equal &&
|
|
elem->mCORSMode == mCORSMode) {
|
|
NS_ASSERTION(elem->mDecoder && elem->mDecoder->GetResource(), "Decoder gone");
|
|
MediaResource* resource = elem->mDecoder->GetResource();
|
|
if (resource->CanClone()) {
|
|
return elem;
|
|
}
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
HTMLMediaElement::HTMLMediaElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
|
|
: nsGenericHTMLElement(aNodeInfo),
|
|
mWatchManager(this, AbstractThread::MainThread()),
|
|
mSrcStreamPausedCurrentTime(-1),
|
|
mCurrentLoadID(0),
|
|
mNetworkState(nsIDOMHTMLMediaElement::NETWORK_EMPTY),
|
|
mReadyState(nsIDOMHTMLMediaElement::HAVE_NOTHING, "HTMLMediaElement::mReadyState"),
|
|
mLoadWaitStatus(NOT_WAITING),
|
|
mVolume(1.0),
|
|
mPreloadAction(PRELOAD_UNDEFINED),
|
|
mLastCurrentTime(0.0),
|
|
mFragmentStart(-1.0),
|
|
mFragmentEnd(-1.0),
|
|
mDefaultPlaybackRate(1.0),
|
|
mPlaybackRate(1.0),
|
|
mPreservesPitch(true),
|
|
mPlayed(new TimeRanges(ToSupports(OwnerDoc()))),
|
|
mCurrentPlayRangeStart(-1.0),
|
|
mBegun(false),
|
|
mLoadedDataFired(false),
|
|
mAutoplaying(true),
|
|
mAutoplayEnabled(true),
|
|
mPaused(true),
|
|
mMuted(0),
|
|
mStatsShowing(false),
|
|
mAllowCasting(false),
|
|
mIsCasting(false),
|
|
mAudioCaptured(false),
|
|
mAudioCapturedByWindow(false),
|
|
mPlayingBeforeSeek(false),
|
|
mPlayingThroughTheAudioChannelBeforeSeek(false),
|
|
mPausedForInactiveDocumentOrChannel(false),
|
|
mEventDeliveryPaused(false),
|
|
mWaitingFired(false),
|
|
mIsRunningLoadMethod(false),
|
|
mIsDoingExplicitLoad(false),
|
|
mIsLoadingFromSourceChildren(false),
|
|
mDelayingLoadEvent(false),
|
|
mIsRunningSelectResource(false),
|
|
mHaveQueuedSelectResource(false),
|
|
mSuspendedAfterFirstFrame(false),
|
|
mAllowSuspendAfterFirstFrame(true),
|
|
mHasPlayedOrSeeked(false),
|
|
mHasSelfReference(false),
|
|
mShuttingDown(false),
|
|
mSuspendedForPreloadNone(false),
|
|
mSrcStreamIsPlaying(false),
|
|
mMediaSecurityVerified(false),
|
|
mCORSMode(CORS_NONE),
|
|
mIsEncrypted(false),
|
|
mDownloadSuspendedByCache(false, "HTMLMediaElement::mDownloadSuspendedByCache"),
|
|
mAudioChannelVolume(1.0),
|
|
mPlayingThroughTheAudioChannel(false),
|
|
mDisableVideo(false),
|
|
mPlayBlockedBecauseHidden(false),
|
|
mMediaStreamTrackListener(nullptr),
|
|
mElementInTreeState(ELEMENT_NOT_INTREE),
|
|
mHasUserInteraction(false),
|
|
mFirstFrameLoaded(false),
|
|
mDefaultPlaybackStartPosition(0.0)
|
|
{
|
|
mAudioChannel = AudioChannelService::GetDefaultAudioChannel();
|
|
|
|
mPaused.SetOuter(this);
|
|
|
|
RegisterActivityObserver();
|
|
NotifyOwnerDocumentActivityChangedInternal();
|
|
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mWatchManager.Watch(mDownloadSuspendedByCache, &HTMLMediaElement::UpdateReadyStateInternal);
|
|
// Paradoxically, there is a self-edge whereby UpdateReadyStateInternal refuses
|
|
// to run until mReadyState reaches at least HAVE_METADATA by some other means.
|
|
mWatchManager.Watch(mReadyState, &HTMLMediaElement::UpdateReadyStateInternal);
|
|
}
|
|
|
|
HTMLMediaElement::~HTMLMediaElement()
|
|
{
|
|
NS_ASSERTION(!mHasSelfReference,
|
|
"How can we be destroyed if we're still holding a self reference?");
|
|
|
|
if (mVideoFrameContainer) {
|
|
mVideoFrameContainer->ForgetElement();
|
|
}
|
|
UnregisterActivityObserver();
|
|
if (mDecoder) {
|
|
ShutdownDecoder();
|
|
}
|
|
if (mProgressTimer) {
|
|
StopProgress();
|
|
}
|
|
if (mSrcStream) {
|
|
EndSrcMediaStreamPlayback();
|
|
}
|
|
|
|
if (mCaptureStreamPort) {
|
|
mCaptureStreamPort->Destroy();
|
|
mCaptureStreamPort = nullptr;
|
|
}
|
|
|
|
NS_ASSERTION(MediaElementTableCount(this, mLoadingSrc) == 0,
|
|
"Destroyed media element should no longer be in element table");
|
|
|
|
if (mChannel) {
|
|
mChannel->Cancel(NS_BINDING_ABORTED);
|
|
}
|
|
|
|
WakeLockRelease();
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::GetItemValueText(DOMString& aValue)
|
|
{
|
|
// Can't call GetSrc because we don't have a JSContext
|
|
GetURIAttr(nsGkAtoms::src, nullptr, aValue);
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::SetItemValueText(const nsAString& aValue)
|
|
{
|
|
// Can't call SetSrc because we don't have a JSContext
|
|
SetAttr(kNameSpaceID_None, nsGkAtoms::src, aValue, true);
|
|
}
|
|
|
|
void HTMLMediaElement::StopSuspendingAfterFirstFrame()
|
|
{
|
|
mAllowSuspendAfterFirstFrame = false;
|
|
if (!mSuspendedAfterFirstFrame)
|
|
return;
|
|
mSuspendedAfterFirstFrame = false;
|
|
if (mDecoder) {
|
|
mDecoder->Resume(true);
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::SetPlayedOrSeeked(bool aValue)
|
|
{
|
|
if (aValue == mHasPlayedOrSeeked) {
|
|
return;
|
|
}
|
|
|
|
mHasPlayedOrSeeked = aValue;
|
|
|
|
// Force a reflow so that the poster frame hides or shows immediately.
|
|
nsIFrame* frame = GetPrimaryFrame();
|
|
if (!frame) {
|
|
return;
|
|
}
|
|
frame->PresContext()->PresShell()->FrameNeedsReflow(frame,
|
|
nsIPresShell::eTreeChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::ResetConnectionState()
|
|
{
|
|
SetCurrentTime(0);
|
|
FireTimeUpdate(false);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("ended"));
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_EMPTY);
|
|
ChangeDelayLoadStatus(false);
|
|
ChangeReadyState(nsIDOMHTMLMediaElement::HAVE_NOTHING);
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::Play(ErrorResult& aRv)
|
|
{
|
|
nsresult rv = PlayInternal(nsContentUtils::IsCallerChrome());
|
|
if (NS_FAILED(rv)) {
|
|
aRv.Throw(rv);
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
HTMLMediaElement::PlayInternal(bool aCallerIsChrome)
|
|
{
|
|
// Prevent media element from being auto-started by a script when
|
|
// media.autoplay.enabled=false
|
|
if (!mHasUserInteraction
|
|
&& !IsAutoplayEnabled()
|
|
&& !EventStateManager::IsHandlingUserInput()
|
|
&& !aCallerIsChrome) {
|
|
LOG(LogLevel::Debug, ("%p Blocked attempt to autoplay media.", this));
|
|
#if defined(MOZ_WIDGET_ANDROID)
|
|
nsContentUtils::DispatchTrustedEvent(OwnerDoc(),
|
|
static_cast<nsIContent*>(this),
|
|
NS_LITERAL_STRING("MozAutoplayMediaBlocked"),
|
|
false,
|
|
false);
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
|
|
// Play was not blocked so assume user interacted with the element.
|
|
mHasUserInteraction = true;
|
|
|
|
StopSuspendingAfterFirstFrame();
|
|
SetPlayedOrSeeked(true);
|
|
|
|
if (mNetworkState == nsIDOMHTMLMediaElement::NETWORK_EMPTY) {
|
|
DoLoad();
|
|
}
|
|
if (mSuspendedForPreloadNone) {
|
|
ResumeLoad(PRELOAD_ENOUGH);
|
|
}
|
|
|
|
if (Preferences::GetBool("media.block-play-until-visible", false) &&
|
|
!aCallerIsChrome &&
|
|
OwnerDoc()->Hidden()) {
|
|
LOG(LogLevel::Debug, ("%p Blocked playback because owner hidden.", this));
|
|
mPlayBlockedBecauseHidden = true;
|
|
return NS_OK;
|
|
}
|
|
|
|
// Even if we just did Load() or ResumeLoad(), we could already have a decoder
|
|
// here if we managed to clone an existing decoder.
|
|
if (mDecoder) {
|
|
if (mDecoder->IsEndedOrShutdown()) {
|
|
SetCurrentTime(0);
|
|
}
|
|
if (!mPausedForInactiveDocumentOrChannel) {
|
|
nsresult rv = mDecoder->Play();
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mCurrentPlayRangeStart == -1.0) {
|
|
mCurrentPlayRangeStart = CurrentTime();
|
|
}
|
|
|
|
// TODO: If the playback has ended, then the user agent must set
|
|
// seek to the effective start.
|
|
if (mPaused) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("play"));
|
|
switch (mReadyState) {
|
|
case nsIDOMHTMLMediaElement::HAVE_NOTHING:
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("waiting"));
|
|
break;
|
|
case nsIDOMHTMLMediaElement::HAVE_METADATA:
|
|
case nsIDOMHTMLMediaElement::HAVE_CURRENT_DATA:
|
|
FireTimeUpdate(false);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("waiting"));
|
|
break;
|
|
case nsIDOMHTMLMediaElement::HAVE_FUTURE_DATA:
|
|
case nsIDOMHTMLMediaElement::HAVE_ENOUGH_DATA:
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("playing"));
|
|
break;
|
|
}
|
|
}
|
|
|
|
mPaused = false;
|
|
mAutoplaying = false;
|
|
// We changed mPaused and mAutoplaying which can affect AddRemoveSelfReference
|
|
// and our preload status.
|
|
AddRemoveSelfReference();
|
|
UpdatePreloadAction();
|
|
UpdateSrcMediaStreamPlaying();
|
|
UpdateAudioChannelPlayingState();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::Play()
|
|
{
|
|
return PlayInternal(/* aCallerIsChrome = */ true);
|
|
}
|
|
|
|
HTMLMediaElement::WakeLockBoolWrapper&
|
|
HTMLMediaElement::WakeLockBoolWrapper::operator=(bool val)
|
|
{
|
|
if (mValue == val) {
|
|
return *this;
|
|
}
|
|
|
|
mValue = val;
|
|
UpdateWakeLock();
|
|
return *this;
|
|
}
|
|
|
|
HTMLMediaElement::WakeLockBoolWrapper::~WakeLockBoolWrapper()
|
|
{
|
|
if (mTimer) {
|
|
mTimer->Cancel();
|
|
}
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::WakeLockBoolWrapper::SetCanPlay(bool aCanPlay)
|
|
{
|
|
mCanPlay = aCanPlay;
|
|
UpdateWakeLock();
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::WakeLockBoolWrapper::UpdateWakeLock()
|
|
{
|
|
if (!mOuter) {
|
|
return;
|
|
}
|
|
|
|
bool playing = (!mValue && mCanPlay);
|
|
|
|
if (playing) {
|
|
if (mTimer) {
|
|
mTimer->Cancel();
|
|
mTimer = nullptr;
|
|
}
|
|
mOuter->WakeLockCreate();
|
|
} else if (!mTimer) {
|
|
// Don't release the wake lock immediately; instead, release it after a
|
|
// grace period.
|
|
int timeout = Preferences::GetInt("media.wakelock_timeout", 2000);
|
|
mTimer = do_CreateInstance("@mozilla.org/timer;1");
|
|
if (mTimer) {
|
|
mTimer->InitWithFuncCallback(TimerCallback, this, timeout,
|
|
nsITimer::TYPE_ONE_SHOT);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::WakeLockBoolWrapper::TimerCallback(nsITimer* aTimer,
|
|
void* aClosure)
|
|
{
|
|
WakeLockBoolWrapper* wakeLock = static_cast<WakeLockBoolWrapper*>(aClosure);
|
|
wakeLock->mOuter->WakeLockRelease();
|
|
wakeLock->mTimer = nullptr;
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::WakeLockCreate()
|
|
{
|
|
if (!mWakeLock) {
|
|
RefPtr<power::PowerManagerService> pmService =
|
|
power::PowerManagerService::GetInstance();
|
|
NS_ENSURE_TRUE_VOID(pmService);
|
|
|
|
ErrorResult rv;
|
|
mWakeLock = pmService->NewWakeLock(NS_LITERAL_STRING("cpu"),
|
|
OwnerDoc()->GetInnerWindow(),
|
|
rv);
|
|
}
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::WakeLockRelease()
|
|
{
|
|
if (mWakeLock) {
|
|
ErrorResult rv;
|
|
mWakeLock->Unlock(rv);
|
|
rv.SuppressException();
|
|
mWakeLock = nullptr;
|
|
}
|
|
}
|
|
|
|
bool HTMLMediaElement::ParseAttribute(int32_t aNamespaceID,
|
|
nsIAtom* aAttribute,
|
|
const nsAString& aValue,
|
|
nsAttrValue& aResult)
|
|
{
|
|
// Mappings from 'preload' attribute strings to an enumeration.
|
|
static const nsAttrValue::EnumTable kPreloadTable[] = {
|
|
{ "", HTMLMediaElement::PRELOAD_ATTR_EMPTY },
|
|
{ "none", HTMLMediaElement::PRELOAD_ATTR_NONE },
|
|
{ "metadata", HTMLMediaElement::PRELOAD_ATTR_METADATA },
|
|
{ "auto", HTMLMediaElement::PRELOAD_ATTR_AUTO },
|
|
{ 0 }
|
|
};
|
|
|
|
if (aNamespaceID == kNameSpaceID_None) {
|
|
if (ParseImageAttribute(aAttribute, aValue, aResult)) {
|
|
return true;
|
|
}
|
|
if (aAttribute == nsGkAtoms::crossorigin) {
|
|
ParseCORSValue(aValue, aResult);
|
|
return true;
|
|
}
|
|
if (aAttribute == nsGkAtoms::preload) {
|
|
return aResult.ParseEnumValue(aValue, kPreloadTable, false);
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::mozaudiochannel) {
|
|
const nsAttrValue::EnumTable* table =
|
|
AudioChannelService::GetAudioChannelTable();
|
|
MOZ_ASSERT(table);
|
|
|
|
bool parsed = aResult.ParseEnumValue(aValue, table, false, &table[0]);
|
|
if (!parsed) {
|
|
return false;
|
|
}
|
|
|
|
AudioChannel audioChannel = static_cast<AudioChannel>(aResult.GetEnumValue());
|
|
|
|
if (audioChannel == mAudioChannel ||
|
|
!CheckAudioChannelPermissions(aValue)) {
|
|
return true;
|
|
}
|
|
|
|
// We cannot change the AudioChannel of a decoder.
|
|
if (mDecoder) {
|
|
return true;
|
|
}
|
|
|
|
mAudioChannel = audioChannel;
|
|
|
|
if (mSrcStream) {
|
|
RefPtr<MediaStream> stream = GetSrcMediaStream();
|
|
if (stream) {
|
|
stream->SetAudioChannelType(mAudioChannel);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
|
|
aResult);
|
|
}
|
|
|
|
bool HTMLMediaElement::CheckAudioChannelPermissions(const nsAString& aString)
|
|
{
|
|
// Only normal channel doesn't need permission.
|
|
if (aString.EqualsASCII("normal")) {
|
|
return true;
|
|
}
|
|
|
|
// Maybe this audio channel is equal to the default value from the pref.
|
|
nsString audioChannel;
|
|
AudioChannelService::GetDefaultAudioChannelString(audioChannel);
|
|
if (audioChannel.Equals(aString)) {
|
|
return true;
|
|
}
|
|
|
|
nsCOMPtr<nsIPermissionManager> permissionManager =
|
|
services::GetPermissionManager();
|
|
if (!permissionManager) {
|
|
return false;
|
|
}
|
|
|
|
uint32_t perm = nsIPermissionManager::UNKNOWN_ACTION;
|
|
permissionManager->TestExactPermissionFromPrincipal(NodePrincipal(),
|
|
nsCString(NS_LITERAL_CSTRING("audio-channel-") + NS_ConvertUTF16toUTF8(aString)).get(), &perm);
|
|
if (perm != nsIPermissionManager::ALLOW_ACTION) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void HTMLMediaElement::DoneCreatingElement()
|
|
{
|
|
if (HasAttr(kNameSpaceID_None, nsGkAtoms::muted)) {
|
|
mMuted |= MUTED_BY_CONTENT;
|
|
}
|
|
}
|
|
|
|
bool HTMLMediaElement::IsHTMLFocusable(bool aWithMouse,
|
|
bool* aIsFocusable,
|
|
int32_t* aTabIndex)
|
|
{
|
|
if (nsGenericHTMLElement::IsHTMLFocusable(aWithMouse, aIsFocusable, aTabIndex)) {
|
|
return true;
|
|
}
|
|
|
|
*aIsFocusable = true;
|
|
return false;
|
|
}
|
|
|
|
int32_t HTMLMediaElement::TabIndexDefault()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
nsresult HTMLMediaElement::SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
|
|
nsIAtom* aPrefix, const nsAString& aValue,
|
|
bool aNotify)
|
|
{
|
|
nsresult rv =
|
|
nsGenericHTMLElement::SetAttr(aNameSpaceID, aName, aPrefix, aValue,
|
|
aNotify);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::src) {
|
|
DoLoad();
|
|
}
|
|
if (aNotify && aNameSpaceID == kNameSpaceID_None) {
|
|
if (aName == nsGkAtoms::autoplay) {
|
|
StopSuspendingAfterFirstFrame();
|
|
CheckAutoplayDataReady();
|
|
// This attribute can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
UpdatePreloadAction();
|
|
} else if (aName == nsGkAtoms::preload) {
|
|
UpdatePreloadAction();
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLMediaElement::UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttr,
|
|
bool aNotify)
|
|
{
|
|
nsresult rv = nsGenericHTMLElement::UnsetAttr(aNameSpaceID, aAttr, aNotify);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
if (aNotify && aNameSpaceID == kNameSpaceID_None) {
|
|
if (aAttr == nsGkAtoms::autoplay) {
|
|
// This attribute can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
UpdatePreloadAction();
|
|
} else if (aAttr == nsGkAtoms::preload) {
|
|
UpdatePreloadAction();
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
HTMLMediaElement::AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
|
|
const nsAttrValue* aValue, bool aNotify)
|
|
{
|
|
if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::src) {
|
|
mSrcMediaSource = nullptr;
|
|
if (aValue) {
|
|
nsString srcStr = aValue->GetStringValue();
|
|
nsCOMPtr<nsIURI> uri;
|
|
NewURIFromString(srcStr, getter_AddRefs(uri));
|
|
if (uri && IsMediaSourceURI(uri)) {
|
|
nsresult rv =
|
|
NS_GetSourceForMediaSourceURI(uri, getter_AddRefs(mSrcMediaSource));
|
|
if (NS_FAILED(rv)) {
|
|
nsAutoString spec;
|
|
GetCurrentSrc(spec);
|
|
const char16_t* params[] = { spec.get() };
|
|
ReportLoadError("MediaLoadInvalidURI", params, ArrayLength(params));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return nsGenericHTMLElement::AfterSetAttr(aNameSpaceID, aName,
|
|
aValue, aNotify);
|
|
}
|
|
|
|
nsresult HTMLMediaElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
|
|
nsIContent* aBindingParent,
|
|
bool aCompileEventHandlers)
|
|
{
|
|
nsresult rv = nsGenericHTMLElement::BindToTree(aDocument,
|
|
aParent,
|
|
aBindingParent,
|
|
aCompileEventHandlers);
|
|
if (aDocument) {
|
|
mAutoplayEnabled =
|
|
IsAutoplayEnabled() && (!aDocument || !aDocument->IsStaticDocument()) &&
|
|
!IsEditable();
|
|
// The preload action depends on the value of the autoplay attribute.
|
|
// It's value may have changed, so update it.
|
|
UpdatePreloadAction();
|
|
}
|
|
mElementInTreeState = ELEMENT_INTREE;
|
|
|
|
if (mDecoder) {
|
|
// When the MediaElement is binding to tree, the dormant status is
|
|
// aligned to document's hidden status.
|
|
mDecoder->NotifyOwnerActivityChanged();
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
#ifdef MOZ_EME
|
|
void
|
|
HTMLMediaElement::ReportEMETelemetry()
|
|
{
|
|
// Report telemetry for EME videos when a page is unloaded.
|
|
NS_ASSERTION(NS_IsMainThread(), "Should be on main thread.");
|
|
if (mIsEncrypted && Preferences::GetBool("media.eme.enabled")) {
|
|
Telemetry::Accumulate(Telemetry::VIDEO_EME_PLAY_SUCCESS, mLoadedDataFired);
|
|
LOG(LogLevel::Debug, ("%p VIDEO_EME_PLAY_SUCCESS = %s",
|
|
this, mLoadedDataFired ? "true" : "false"));
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void
|
|
HTMLMediaElement::ReportMSETelemetry()
|
|
{
|
|
#if(0)
|
|
// Report telemetry for videos when a page is unloaded. We
|
|
// want to know data on what state the video is at when
|
|
// the user has exited.
|
|
enum UnloadedState {
|
|
ENDED = 0,
|
|
PAUSED = 1,
|
|
STALLED = 2,
|
|
SEEKING = 3,
|
|
OTHER = 4
|
|
};
|
|
|
|
UnloadedState state = OTHER;
|
|
if (Seeking()) {
|
|
state = SEEKING;
|
|
}
|
|
else if (Ended()) {
|
|
state = ENDED;
|
|
}
|
|
else if (Paused()) {
|
|
state = PAUSED;
|
|
}
|
|
else {
|
|
// For buffering we check if the current playback position is at the end
|
|
// of a buffered range, within a margin of error. We also consider to be
|
|
// buffering if the last frame status was buffering and the ready state is
|
|
// HAVE_CURRENT_DATA to account for times where we are in a buffering state
|
|
// regardless of what actual data we have buffered.
|
|
bool stalled = false;
|
|
RefPtr<TimeRanges> ranges = Buffered();
|
|
const double errorMargin = 0.05;
|
|
double t = CurrentTime();
|
|
TimeRanges::index_type index = ranges->Find(t, errorMargin);
|
|
ErrorResult ignore;
|
|
stalled = index != TimeRanges::NoIndex &&
|
|
(ranges->End(index, ignore) - t) < errorMargin;
|
|
stalled |= mDecoder && NextFrameStatus() == MediaDecoderOwner::NEXT_FRAME_UNAVAILABLE_BUFFERING &&
|
|
mReadyState == HTMLMediaElement::HAVE_CURRENT_DATA;
|
|
if (stalled) {
|
|
state = STALLED;
|
|
}
|
|
}
|
|
|
|
Telemetry::Accumulate(Telemetry::VIDEO_MSE_UNLOAD_STATE, state);
|
|
LOG(LogLevel::Debug, ("%p VIDEO_MSE_UNLOAD_STATE = %d", this, state));
|
|
|
|
Telemetry::Accumulate(Telemetry::VIDEO_MSE_PLAY_TIME_MS, SECONDS_TO_MS(mPlayTime.Total()));
|
|
LOG(LogLevel::Debug, ("%p VIDEO_MSE_PLAY_TIME_MS = %f", this, mPlayTime.Total()));
|
|
|
|
double latency = mJoinLatency.Count() ? mJoinLatency.Total() / mJoinLatency.Count() : 0.0;
|
|
Telemetry::Accumulate(Telemetry::VIDEO_MSE_JOIN_LATENCY_MS, SECONDS_TO_MS(latency));
|
|
LOG(LogLevel::Debug, ("%p VIDEO_MSE_JOIN_LATENCY = %f (%d ms) count=%d\n",
|
|
this, latency, SECONDS_TO_MS(latency), mJoinLatency.Count()));
|
|
#endif
|
|
}
|
|
|
|
void HTMLMediaElement::UnbindFromTree(bool aDeep,
|
|
bool aNullParent)
|
|
{
|
|
if (!mPaused && mNetworkState != nsIDOMHTMLMediaElement::NETWORK_EMPTY) {
|
|
Pause();
|
|
}
|
|
|
|
mElementInTreeState = ELEMENT_NOT_INTREE_HAD_INTREE;
|
|
|
|
nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
|
|
|
|
if (mDecoder) {
|
|
MOZ_ASSERT(IsHidden());
|
|
mDecoder->NotifyOwnerActivityChanged();
|
|
}
|
|
}
|
|
|
|
/* static */
|
|
CanPlayStatus
|
|
HTMLMediaElement::GetCanPlay(const nsAString& aType)
|
|
{
|
|
nsContentTypeParser parser(aType);
|
|
nsAutoString mimeType;
|
|
nsresult rv = parser.GetType(mimeType);
|
|
if (NS_FAILED(rv))
|
|
return CANPLAY_NO;
|
|
|
|
nsAutoString codecs;
|
|
rv = parser.GetParameter("codecs", codecs);
|
|
|
|
NS_ConvertUTF16toUTF8 mimeTypeUTF8(mimeType);
|
|
return DecoderTraits::CanHandleMediaType(mimeTypeUTF8.get(),
|
|
NS_SUCCEEDED(rv),
|
|
codecs);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLMediaElement::CanPlayType(const nsAString& aType, nsAString& aResult)
|
|
{
|
|
switch (GetCanPlay(aType)) {
|
|
case CANPLAY_NO:
|
|
aResult.Truncate();
|
|
break;
|
|
case CANPLAY_YES:
|
|
aResult.AssignLiteral("probably");
|
|
break;
|
|
default:
|
|
case CANPLAY_MAYBE:
|
|
aResult.AssignLiteral("maybe");
|
|
break;
|
|
}
|
|
|
|
LOG(LogLevel::Debug, ("%p CanPlayType(%s) = \"%s\"", this,
|
|
NS_ConvertUTF16toUTF8(aType).get(),
|
|
NS_ConvertUTF16toUTF8(aResult).get()));
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLMediaElement::InitializeDecoderAsClone(MediaDecoder* aOriginal)
|
|
{
|
|
NS_ASSERTION(mLoadingSrc, "mLoadingSrc must already be set");
|
|
NS_ASSERTION(mDecoder == nullptr, "Shouldn't have a decoder");
|
|
|
|
MediaResource* originalResource = aOriginal->GetResource();
|
|
if (!originalResource)
|
|
return NS_ERROR_FAILURE;
|
|
RefPtr<MediaDecoder> decoder = aOriginal->Clone(this);
|
|
if (!decoder)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
LOG(LogLevel::Debug, ("%p Cloned decoder %p from %p", this, decoder.get(), aOriginal));
|
|
|
|
decoder->SetMediaSeekable(aOriginal->IsMediaSeekable());
|
|
|
|
RefPtr<MediaResource> resource =
|
|
originalResource->CloneData(decoder->GetResourceCallback());
|
|
|
|
if (!resource) {
|
|
LOG(LogLevel::Debug, ("%p Failed to cloned stream for decoder %p", this, decoder.get()));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return FinishDecoderSetup(decoder, resource, nullptr);
|
|
}
|
|
|
|
nsresult HTMLMediaElement::InitializeDecoderForChannel(nsIChannel* aChannel,
|
|
nsIStreamListener** aListener)
|
|
{
|
|
NS_ASSERTION(mLoadingSrc, "mLoadingSrc must already be set");
|
|
NS_ASSERTION(mDecoder == nullptr, "Shouldn't have a decoder");
|
|
|
|
nsAutoCString mimeType;
|
|
|
|
aChannel->GetContentType(mimeType);
|
|
NS_ASSERTION(!mimeType.IsEmpty(), "We should have the Content-Type.");
|
|
|
|
RefPtr<MediaDecoder> decoder = DecoderTraits::CreateDecoder(mimeType, this);
|
|
if (!decoder) {
|
|
nsAutoString src;
|
|
GetCurrentSrc(src);
|
|
NS_ConvertUTF8toUTF16 mimeUTF16(mimeType);
|
|
const char16_t* params[] = { mimeUTF16.get(), src.get() };
|
|
ReportLoadError("MediaLoadUnsupportedMimeType", params, ArrayLength(params));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
LOG(LogLevel::Debug, ("%p Created decoder %p for type %s", this, decoder.get(), mimeType.get()));
|
|
|
|
RefPtr<MediaResource> resource =
|
|
MediaResource::Create(decoder->GetResourceCallback(), aChannel);
|
|
|
|
if (!resource)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
// stream successfully created, the stream now owns the channel.
|
|
mChannel = nullptr;
|
|
|
|
// We postpone the |FinishDecoderSetup| function call until we get
|
|
// |OnConnected| signal from MediaStreamController which is held by
|
|
// RtspMediaResource.
|
|
if (DecoderTraits::DecoderWaitsForOnConnected(mimeType)) {
|
|
decoder->SetResource(resource);
|
|
SetDecoder(decoder);
|
|
if (aListener) {
|
|
*aListener = nullptr;
|
|
}
|
|
return NS_OK;
|
|
} else {
|
|
return FinishDecoderSetup(decoder, resource, aListener);
|
|
}
|
|
}
|
|
|
|
nsresult HTMLMediaElement::FinishDecoderSetup(MediaDecoder* aDecoder,
|
|
MediaResource* aStream,
|
|
nsIStreamListener** aListener)
|
|
{
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_LOADING);
|
|
|
|
// Force a same-origin check before allowing events for this media resource.
|
|
mMediaSecurityVerified = false;
|
|
|
|
// The new stream has not been suspended by us.
|
|
mPausedForInactiveDocumentOrChannel = false;
|
|
mEventDeliveryPaused = false;
|
|
mPendingEvents.Clear();
|
|
// Set mDecoder now so if methods like GetCurrentSrc get called between
|
|
// here and Load(), they work.
|
|
SetDecoder(aDecoder);
|
|
|
|
// Tell the decoder about its MediaResource now so things like principals are
|
|
// available immediately.
|
|
mDecoder->SetResource(aStream);
|
|
mDecoder->SetAudioChannel(mAudioChannel);
|
|
mDecoder->SetVolume(mMuted ? 0.0 : mVolume);
|
|
mDecoder->SetPreservesPitch(mPreservesPitch);
|
|
mDecoder->SetPlaybackRate(mPlaybackRate);
|
|
if (mPreloadAction == HTMLMediaElement::PRELOAD_METADATA) {
|
|
mDecoder->SetMinimizePrerollUntilPlaybackStarts();
|
|
}
|
|
|
|
// Update decoder principal before we start decoding, since it
|
|
// can affect how we feed data to MediaStreams
|
|
NotifyDecoderPrincipalChanged();
|
|
|
|
nsresult rv = aDecoder->Load(aListener);
|
|
if (NS_FAILED(rv)) {
|
|
ShutdownDecoder();
|
|
LOG(LogLevel::Debug, ("%p Failed to load for decoder %p", this, aDecoder));
|
|
return rv;
|
|
}
|
|
|
|
for (uint32_t i = 0; i < mOutputStreams.Length(); ++i) {
|
|
OutputMediaStream* ms = &mOutputStreams[i];
|
|
aDecoder->AddOutputStream(ms->mStream->GetInputStream()->AsProcessedStream(),
|
|
ms->mFinishWhenEnded);
|
|
}
|
|
|
|
#ifdef MOZ_EME
|
|
if (mMediaKeys) {
|
|
mDecoder->SetCDMProxy(mMediaKeys->GetCDMProxy());
|
|
}
|
|
#endif
|
|
|
|
// Decoder successfully created, the decoder now owns the MediaResource
|
|
// which owns the channel.
|
|
mChannel = nullptr;
|
|
|
|
AddMediaElementToURITable();
|
|
|
|
// We may want to suspend the new stream now.
|
|
// This will also do an AddRemoveSelfReference.
|
|
NotifyOwnerDocumentActivityChangedInternal();
|
|
UpdateAudioChannelPlayingState();
|
|
|
|
if (!mPaused) {
|
|
SetPlayedOrSeeked(true);
|
|
if (!mPausedForInactiveDocumentOrChannel) {
|
|
rv = mDecoder->Play();
|
|
}
|
|
}
|
|
|
|
if (NS_FAILED(rv)) {
|
|
ShutdownDecoder();
|
|
}
|
|
|
|
NS_ASSERTION(NS_SUCCEEDED(rv) == (MediaElementTableCount(this, mLoadingSrc) == 1),
|
|
"Media element should have single table entry if decode initialized");
|
|
|
|
return rv;
|
|
}
|
|
|
|
class HTMLMediaElement::StreamListener : public MediaStreamListener,
|
|
public WatchTarget
|
|
{
|
|
public:
|
|
explicit StreamListener(HTMLMediaElement* aElement, const char* aName) :
|
|
WatchTarget(aName),
|
|
mElement(aElement),
|
|
mHaveCurrentData(false),
|
|
mBlocked(false),
|
|
mFinished(false),
|
|
mMutex(aName),
|
|
mPendingNotifyOutput(false)
|
|
{}
|
|
void Forget() { mElement = nullptr; }
|
|
|
|
// Main thread
|
|
void DoNotifyFinished()
|
|
{
|
|
mFinished = true;
|
|
if (mElement) {
|
|
RefPtr<HTMLMediaElement> deathGrip = mElement;
|
|
|
|
// Update NextFrameStatus() to move to NEXT_FRAME_UNAVAILABLE and
|
|
// HAVE_CURRENT_DATA.
|
|
mElement = nullptr;
|
|
// NotifyWatchers before calling PlaybackEnded since PlaybackEnded
|
|
// can remove watchers.
|
|
NotifyWatchers();
|
|
|
|
deathGrip->PlaybackEnded();
|
|
}
|
|
}
|
|
|
|
MediaDecoderOwner::NextFrameStatus NextFrameStatus()
|
|
{
|
|
if (!mElement || !mHaveCurrentData || mFinished) {
|
|
return MediaDecoderOwner::NEXT_FRAME_UNAVAILABLE;
|
|
}
|
|
return mBlocked
|
|
? MediaDecoderOwner::NEXT_FRAME_UNAVAILABLE_BUFFERING
|
|
: MediaDecoderOwner::NEXT_FRAME_AVAILABLE;
|
|
}
|
|
|
|
void DoNotifyBlocked()
|
|
{
|
|
mBlocked = true;
|
|
NotifyWatchers();
|
|
}
|
|
void DoNotifyUnblocked()
|
|
{
|
|
mBlocked = false;
|
|
NotifyWatchers();
|
|
}
|
|
void DoNotifyOutput()
|
|
{
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
mPendingNotifyOutput = false;
|
|
}
|
|
if (mElement && mHaveCurrentData) {
|
|
RefPtr<HTMLMediaElement> deathGrip = mElement;
|
|
deathGrip->FireTimeUpdate(true);
|
|
}
|
|
}
|
|
void DoNotifyHaveCurrentData()
|
|
{
|
|
mHaveCurrentData = true;
|
|
if (mElement) {
|
|
RefPtr<HTMLMediaElement> deathGrip = mElement;
|
|
deathGrip->FirstFrameLoaded();
|
|
}
|
|
NotifyWatchers();
|
|
DoNotifyOutput();
|
|
}
|
|
|
|
// These notifications run on the media graph thread so we need to
|
|
// dispatch events to the main thread.
|
|
virtual void NotifyBlockingChanged(MediaStreamGraph* aGraph, Blocking aBlocked) override
|
|
{
|
|
nsCOMPtr<nsIRunnable> event;
|
|
if (aBlocked == BLOCKED) {
|
|
event = NS_NewRunnableMethod(this, &StreamListener::DoNotifyBlocked);
|
|
} else {
|
|
event = NS_NewRunnableMethod(this, &StreamListener::DoNotifyUnblocked);
|
|
}
|
|
aGraph->DispatchToMainThreadAfterStreamStateUpdate(event.forget());
|
|
}
|
|
virtual void NotifyEvent(MediaStreamGraph* aGraph,
|
|
MediaStreamListener::MediaStreamGraphEvent event) override
|
|
{
|
|
if (event == EVENT_FINISHED) {
|
|
nsCOMPtr<nsIRunnable> event =
|
|
NS_NewRunnableMethod(this, &StreamListener::DoNotifyFinished);
|
|
aGraph->DispatchToMainThreadAfterStreamStateUpdate(event.forget());
|
|
}
|
|
}
|
|
virtual void NotifyHasCurrentData(MediaStreamGraph* aGraph) override
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
nsCOMPtr<nsIRunnable> event =
|
|
NS_NewRunnableMethod(this, &StreamListener::DoNotifyHaveCurrentData);
|
|
aGraph->DispatchToMainThreadAfterStreamStateUpdate(event.forget());
|
|
}
|
|
virtual void NotifyOutput(MediaStreamGraph* aGraph,
|
|
GraphTime aCurrentTime) override
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
if (mPendingNotifyOutput)
|
|
return;
|
|
mPendingNotifyOutput = true;
|
|
nsCOMPtr<nsIRunnable> event =
|
|
NS_NewRunnableMethod(this, &StreamListener::DoNotifyOutput);
|
|
aGraph->DispatchToMainThreadAfterStreamStateUpdate(event.forget());
|
|
}
|
|
|
|
private:
|
|
// These fields may only be accessed on the main thread
|
|
HTMLMediaElement* mElement;
|
|
bool mHaveCurrentData;
|
|
bool mBlocked;
|
|
bool mFinished;
|
|
|
|
// mMutex protects the fields below; they can be accessed on any thread
|
|
Mutex mMutex;
|
|
bool mPendingNotifyOutput;
|
|
};
|
|
|
|
/**
|
|
* This listener observes the first video frame to arrive with a non-empty size,
|
|
* and calls HTMLMediaElement::ReceivedMediaStreamInitialSize() with that size.
|
|
*/
|
|
class HTMLMediaElement::StreamSizeListener : public MediaStreamListener {
|
|
public:
|
|
explicit StreamSizeListener(HTMLMediaElement* aElement) :
|
|
mElement(aElement),
|
|
mMutex("HTMLMediaElement::StreamSizeListener")
|
|
{}
|
|
void Forget() { mElement = nullptr; }
|
|
|
|
void ReceivedSize()
|
|
{
|
|
if (!mElement) {
|
|
return;
|
|
}
|
|
gfx::IntSize size;
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
size = mInitialSize;
|
|
}
|
|
RefPtr<HTMLMediaElement> deathGrip = mElement;
|
|
deathGrip->UpdateInitialMediaSize(size);
|
|
}
|
|
virtual void NotifyQueuedTrackChanges(MediaStreamGraph* aGraph, TrackID aID,
|
|
StreamTime aTrackOffset,
|
|
uint32_t aTrackEvents,
|
|
const MediaSegment& aQueuedMedia,
|
|
MediaStream* aInputStream,
|
|
TrackID aInputTrackID) override
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
if (mInitialSize != gfx::IntSize(0,0) ||
|
|
aQueuedMedia.GetType() != MediaSegment::VIDEO) {
|
|
return;
|
|
}
|
|
const VideoSegment& video = static_cast<const VideoSegment&>(aQueuedMedia);
|
|
for (VideoSegment::ConstChunkIterator c(video); !c.IsEnded(); c.Next()) {
|
|
if (c->mFrame.GetIntrinsicSize() != gfx::IntSize(0,0)) {
|
|
mInitialSize = c->mFrame.GetIntrinsicSize();
|
|
nsCOMPtr<nsIRunnable> event =
|
|
NS_NewRunnableMethod(this, &StreamSizeListener::ReceivedSize);
|
|
aGraph->DispatchToMainThreadAfterStreamStateUpdate(event.forget());
|
|
}
|
|
}
|
|
}
|
|
|
|
private:
|
|
// These fields may only be accessed on the main thread
|
|
HTMLMediaElement* mElement;
|
|
|
|
// mMutex protects the fields below; they can be accessed on any thread
|
|
Mutex mMutex;
|
|
gfx::IntSize mInitialSize;
|
|
};
|
|
|
|
class HTMLMediaElement::MediaStreamTracksAvailableCallback:
|
|
public DOMMediaStream::OnTracksAvailableCallback
|
|
{
|
|
public:
|
|
explicit MediaStreamTracksAvailableCallback(HTMLMediaElement* aElement):
|
|
DOMMediaStream::OnTracksAvailableCallback(),
|
|
mElement(aElement)
|
|
{}
|
|
virtual void NotifyTracksAvailable(DOMMediaStream* aStream)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Should be on main thread.");
|
|
|
|
if (MOZ_UNLIKELY(!mElement)) return; // bug 1419363
|
|
|
|
mElement->NotifyMediaStreamTracksAvailable(aStream);
|
|
}
|
|
|
|
private:
|
|
WeakPtr<HTMLMediaElement> mElement;
|
|
};
|
|
|
|
class HTMLMediaElement::MediaStreamTrackListener :
|
|
public DOMMediaStream::TrackListener
|
|
{
|
|
public:
|
|
explicit MediaStreamTrackListener(HTMLMediaElement* aElement):
|
|
mElement(aElement) {}
|
|
|
|
void NotifyTrackAdded(const RefPtr<MediaStreamTrack>& aTrack) override
|
|
{
|
|
mElement->NotifyMediaStreamTrackAdded(aTrack);
|
|
}
|
|
|
|
void NotifyTrackRemoved(const RefPtr<MediaStreamTrack>& aTrack) override
|
|
{
|
|
mElement->NotifyMediaStreamTrackRemoved(aTrack);
|
|
}
|
|
|
|
protected:
|
|
~MediaStreamTrackListener() {}
|
|
|
|
HTMLMediaElement* const mElement;
|
|
};
|
|
|
|
void HTMLMediaElement::UpdateSrcMediaStreamPlaying(uint32_t aFlags)
|
|
{
|
|
if (!mSrcStream) {
|
|
return;
|
|
}
|
|
// We might be in cycle collection with mSrcStream->GetPlaybackStream() already
|
|
// returning null due to unlinking.
|
|
|
|
MediaStream* stream = GetSrcMediaStream();
|
|
bool shouldPlay = !(aFlags & REMOVING_SRC_STREAM) && !mPaused &&
|
|
!mPausedForInactiveDocumentOrChannel && stream;
|
|
if (shouldPlay == mSrcStreamIsPlaying) {
|
|
return;
|
|
}
|
|
mSrcStreamIsPlaying = shouldPlay;
|
|
|
|
LOG(LogLevel::Debug, ("MediaElement %p %s playback of DOMMediaStream %p",
|
|
this, shouldPlay ? "Setting up" : "Removing",
|
|
mSrcStream.get()));
|
|
|
|
if (shouldPlay) {
|
|
mSrcStreamPausedCurrentTime = -1;
|
|
|
|
mMediaStreamListener = new StreamListener(this,
|
|
"HTMLMediaElement::mMediaStreamListener");
|
|
stream->AddListener(mMediaStreamListener);
|
|
|
|
mWatchManager.Watch(*mMediaStreamListener,
|
|
&HTMLMediaElement::UpdateReadyStateInternal);
|
|
|
|
stream->AddAudioOutput(this);
|
|
SetVolumeInternal();
|
|
|
|
#ifdef MOZ_WIDGET_GONK
|
|
bool bUseOverlayImage = mSrcStream->AsDOMHwMediaStream() != nullptr;
|
|
#else
|
|
bool bUseOverlayImage = false;
|
|
#endif
|
|
VideoFrameContainer* container;
|
|
if (bUseOverlayImage) {
|
|
container = GetOverlayImageVideoFrameContainer();
|
|
} else {
|
|
container = GetVideoFrameContainer();
|
|
}
|
|
if (container) {
|
|
stream->AddVideoOutput(container);
|
|
}
|
|
} else {
|
|
if (stream) {
|
|
mSrcStreamPausedCurrentTime = CurrentTime();
|
|
|
|
stream->RemoveListener(mMediaStreamListener);
|
|
|
|
stream->RemoveAudioOutput(this);
|
|
VideoFrameContainer* container = GetVideoFrameContainer();
|
|
if (container) {
|
|
stream->RemoveVideoOutput(container);
|
|
}
|
|
}
|
|
// If stream is null, then DOMMediaStream::Destroy must have been
|
|
// called and that will remove all listeners/outputs.
|
|
|
|
mWatchManager.Unwatch(*mMediaStreamListener,
|
|
&HTMLMediaElement::UpdateReadyStateInternal);
|
|
|
|
mMediaStreamListener->Forget();
|
|
mMediaStreamListener = nullptr;
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::SetupSrcMediaStreamPlayback(DOMMediaStream* aStream)
|
|
{
|
|
NS_ASSERTION(!mSrcStream && !mMediaStreamListener && !mMediaStreamSizeListener,
|
|
"Should have been ended already");
|
|
|
|
mSrcStream = aStream;
|
|
|
|
nsIDOMWindow* window = OwnerDoc()->GetInnerWindow();
|
|
if (!window) {
|
|
return;
|
|
}
|
|
|
|
RefPtr<MediaStream> stream = GetSrcMediaStream();
|
|
if (stream) {
|
|
stream->SetAudioChannelType(mAudioChannel);
|
|
|
|
mMediaStreamSizeListener = new StreamSizeListener(this);
|
|
stream->AddListener(mMediaStreamSizeListener);
|
|
}
|
|
|
|
UpdateSrcMediaStreamPlaying();
|
|
|
|
// If we pause this media element, track changes in the underlying stream
|
|
// will continue to fire events at this element and alter its track list.
|
|
// That's simpler than delaying the events, but probably confusing...
|
|
ConstructMediaTracks();
|
|
|
|
mSrcStream->OnTracksAvailable(new MediaStreamTracksAvailableCallback(this));
|
|
mMediaStreamTrackListener = new MediaStreamTrackListener(this);
|
|
mSrcStream->RegisterTrackListener(mMediaStreamTrackListener);
|
|
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_IDLE);
|
|
ChangeDelayLoadStatus(false);
|
|
CheckAutoplayDataReady();
|
|
|
|
// FirstFrameLoaded() will be called when the stream has current data.
|
|
}
|
|
|
|
void HTMLMediaElement::EndSrcMediaStreamPlayback()
|
|
{
|
|
MOZ_ASSERT(mSrcStream);
|
|
|
|
UpdateSrcMediaStreamPlaying(REMOVING_SRC_STREAM);
|
|
|
|
if (mMediaStreamSizeListener) {
|
|
RefPtr<MediaStream> stream = GetSrcMediaStream();
|
|
if (stream) {
|
|
stream->RemoveListener(mMediaStreamSizeListener);
|
|
}
|
|
mMediaStreamSizeListener->Forget();
|
|
mMediaStreamSizeListener = nullptr;
|
|
}
|
|
|
|
mSrcStream->UnregisterTrackListener(mMediaStreamTrackListener);
|
|
mMediaStreamTrackListener = nullptr;
|
|
|
|
mSrcStream = nullptr;
|
|
}
|
|
|
|
static already_AddRefed<AudioTrack>
|
|
CreateAudioTrack(AudioStreamTrack* aStreamTrack)
|
|
{
|
|
nsAutoString id;
|
|
nsAutoString label;
|
|
aStreamTrack->GetId(id);
|
|
aStreamTrack->GetLabel(label);
|
|
|
|
return MediaTrackList::CreateAudioTrack(id, NS_LITERAL_STRING("main"),
|
|
label, EmptyString(),
|
|
aStreamTrack->Enabled());
|
|
}
|
|
|
|
static already_AddRefed<VideoTrack>
|
|
CreateVideoTrack(VideoStreamTrack* aStreamTrack)
|
|
{
|
|
nsAutoString id;
|
|
nsAutoString label;
|
|
aStreamTrack->GetId(id);
|
|
aStreamTrack->GetLabel(label);
|
|
|
|
return MediaTrackList::CreateVideoTrack(id, NS_LITERAL_STRING("main"),
|
|
label, EmptyString());
|
|
}
|
|
|
|
void HTMLMediaElement::ConstructMediaTracks()
|
|
{
|
|
nsTArray<RefPtr<MediaStreamTrack>> tracks;
|
|
mSrcStream->GetTracks(tracks);
|
|
|
|
int firstEnabledVideo = -1;
|
|
for (const RefPtr<MediaStreamTrack>& track : tracks) {
|
|
if (track->Ended()) {
|
|
continue;
|
|
}
|
|
|
|
if (AudioStreamTrack* t = track->AsAudioStreamTrack()) {
|
|
RefPtr<AudioTrack> audioTrack = CreateAudioTrack(t);
|
|
AudioTracks()->AddTrack(audioTrack);
|
|
} else if (VideoStreamTrack* t = track->AsVideoStreamTrack()) {
|
|
RefPtr<VideoTrack> videoTrack = CreateVideoTrack(t);
|
|
VideoTracks()->AddTrack(videoTrack);
|
|
firstEnabledVideo = (t->Enabled() && firstEnabledVideo < 0)
|
|
? (VideoTracks()->Length() - 1)
|
|
: firstEnabledVideo;
|
|
}
|
|
}
|
|
|
|
if (VideoTracks()->Length() > 0) {
|
|
// If media resource does not indicate a particular set of video tracks to
|
|
// enable, the one that is listed first in the element's videoTracks object
|
|
// must be selected.
|
|
int index = firstEnabledVideo >= 0 ? firstEnabledVideo : 0;
|
|
(*VideoTracks())[index]->SetEnabledInternal(true, MediaTrack::FIRE_NO_EVENTS);
|
|
}
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::NotifyMediaStreamTrackAdded(const RefPtr<MediaStreamTrack>& aTrack)
|
|
{
|
|
MOZ_ASSERT(aTrack);
|
|
|
|
#ifdef DEBUG
|
|
nsString id;
|
|
aTrack->GetId(id);
|
|
|
|
LOG(LogLevel::Debug, ("%p, Adding MediaTrack with id %s",
|
|
this, NS_ConvertUTF16toUTF8(id).get()));
|
|
#endif
|
|
|
|
if (AudioStreamTrack* t = aTrack->AsAudioStreamTrack()) {
|
|
RefPtr<AudioTrack> audioTrack = CreateAudioTrack(t);
|
|
AudioTracks()->AddTrack(audioTrack);
|
|
} else if (VideoStreamTrack* t = aTrack->AsVideoStreamTrack()) {
|
|
RefPtr<VideoTrack> videoTrack = CreateVideoTrack(t);
|
|
VideoTracks()->AddTrack(videoTrack);
|
|
}
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::NotifyMediaStreamTrackRemoved(const RefPtr<MediaStreamTrack>& aTrack)
|
|
{
|
|
MOZ_ASSERT(aTrack);
|
|
|
|
nsAutoString id;
|
|
aTrack->GetId(id);
|
|
|
|
LOG(LogLevel::Debug, ("%p, Removing MediaTrack with id %s",
|
|
this, NS_ConvertUTF16toUTF8(id).get()));
|
|
|
|
if (MediaTrack* t = AudioTracks()->GetTrackById(id)) {
|
|
AudioTracks()->RemoveTrack(t);
|
|
} else if (MediaTrack* t = VideoTracks()->GetTrackById(id)) {
|
|
VideoTracks()->RemoveTrack(t);
|
|
} else {
|
|
// XXX (bug 1208328) Uncomment this when DOMMediaStream doesn't call
|
|
// NotifyTrackRemoved multiple times for the same track, i.e., when it
|
|
// implements the "addtrack" and "removetrack" events.
|
|
// NS_ASSERTION(false, "MediaStreamTrack ended but did not exist in track lists");
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
void HTMLMediaElement::ProcessMediaFragmentURI()
|
|
{
|
|
nsMediaFragmentURIParser parser(mLoadingSrc);
|
|
|
|
if (mDecoder && parser.HasEndTime()) {
|
|
mFragmentEnd = parser.GetEndTime();
|
|
}
|
|
|
|
if (parser.HasStartTime()) {
|
|
SetCurrentTime(parser.GetStartTime());
|
|
mFragmentStart = parser.GetStartTime();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::MetadataLoaded(const MediaInfo* aInfo,
|
|
nsAutoPtr<const MetadataTags> aTags)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
// If the element is gaining or losing an audio track, we need to notify
|
|
// the audio channel agent so that the correct audio-playback events will
|
|
// get dispatched.
|
|
bool audioTrackChanging = mMediaInfo.HasAudio() != aInfo->HasAudio();
|
|
AutoNotifyAudioChannelAgent autoNotify(this,
|
|
audioTrackChanging &&
|
|
mPlayingThroughTheAudioChannel);
|
|
|
|
mMediaInfo = *aInfo;
|
|
mIsEncrypted = aInfo->IsEncrypted()
|
|
#ifdef MOZ_EME
|
|
|| mPendingEncryptedInitData.IsEncrypted()
|
|
#endif // MOZ_EME
|
|
;
|
|
mTags = aTags.forget();
|
|
mLoadedDataFired = false;
|
|
ChangeReadyState(nsIDOMHTMLMediaElement::HAVE_METADATA);
|
|
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("durationchange"));
|
|
if (IsVideo() && HasVideo()) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("resize"));
|
|
}
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("loadedmetadata"));
|
|
if (mDecoder && mDecoder->IsTransportSeekable() && mDecoder->IsMediaSeekable()) {
|
|
ProcessMediaFragmentURI();
|
|
mDecoder->SetFragmentEndTime(mFragmentEnd);
|
|
}
|
|
if (mIsEncrypted) {
|
|
if (!mMediaSource && Preferences::GetBool("media.eme.mse-only", true)) {
|
|
DecodeError();
|
|
return;
|
|
}
|
|
|
|
#ifdef MOZ_EME
|
|
// Dispatch a distinct 'encrypted' event for each initData we have.
|
|
for (const auto& initData : mPendingEncryptedInitData.mInitDatas) {
|
|
DispatchEncrypted(initData.mInitData, initData.mType);
|
|
}
|
|
mPendingEncryptedInitData.mInitDatas.Clear();
|
|
#endif // MOZ_EME
|
|
}
|
|
|
|
mWatchManager.ManualNotify(&HTMLMediaElement::UpdateReadyStateInternal);
|
|
|
|
if (IsVideo() && aInfo->HasVideo()) {
|
|
// We are a video element playing video so update the screen wakelock
|
|
NotifyOwnerDocumentActivityChangedInternal();
|
|
}
|
|
|
|
if (mDefaultPlaybackStartPosition != 0.0) {
|
|
SetCurrentTime(mDefaultPlaybackStartPosition);
|
|
mDefaultPlaybackStartPosition = 0.0;
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::FirstFrameLoaded()
|
|
{
|
|
NS_ASSERTION(!mSuspendedAfterFirstFrame, "Should not have already suspended");
|
|
|
|
if (!mFirstFrameLoaded) {
|
|
mFirstFrameLoaded = true;
|
|
UpdateReadyStateInternal();
|
|
}
|
|
|
|
ChangeDelayLoadStatus(false);
|
|
|
|
if (mDecoder && mAllowSuspendAfterFirstFrame && mPaused &&
|
|
!HasAttr(kNameSpaceID_None, nsGkAtoms::autoplay) &&
|
|
mPreloadAction == HTMLMediaElement::PRELOAD_METADATA) {
|
|
mSuspendedAfterFirstFrame = true;
|
|
mDecoder->Suspend();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::NetworkError()
|
|
{
|
|
if (mDecoder) {
|
|
ShutdownDecoder();
|
|
}
|
|
Error(nsIDOMMediaError::MEDIA_ERR_NETWORK);
|
|
}
|
|
|
|
void HTMLMediaElement::DecodeError()
|
|
{
|
|
nsAutoString src;
|
|
GetCurrentSrc(src);
|
|
const char16_t* params[] = { src.get() };
|
|
ReportLoadError("MediaLoadDecodeError", params, ArrayLength(params));
|
|
|
|
if (mDecoder) {
|
|
ShutdownDecoder();
|
|
}
|
|
RemoveMediaElementFromURITable();
|
|
mLoadingSrc = nullptr;
|
|
mMediaSource = nullptr;
|
|
if (mIsLoadingFromSourceChildren) {
|
|
mError = nullptr;
|
|
if (mSourceLoadCandidate) {
|
|
DispatchAsyncSourceError(mSourceLoadCandidate);
|
|
QueueLoadFromSourceTask();
|
|
} else {
|
|
NS_WARNING("Should know the source we were loading from!");
|
|
}
|
|
} else {
|
|
Error(nsIDOMMediaError::MEDIA_ERR_DECODE);
|
|
}
|
|
}
|
|
|
|
bool HTMLMediaElement::HasError() const
|
|
{
|
|
return GetError();
|
|
}
|
|
|
|
void HTMLMediaElement::LoadAborted()
|
|
{
|
|
Error(nsIDOMMediaError::MEDIA_ERR_ABORTED);
|
|
}
|
|
|
|
void HTMLMediaElement::Error(uint16_t aErrorCode)
|
|
{
|
|
NS_ASSERTION(aErrorCode == nsIDOMMediaError::MEDIA_ERR_DECODE ||
|
|
aErrorCode == nsIDOMMediaError::MEDIA_ERR_NETWORK ||
|
|
aErrorCode == nsIDOMMediaError::MEDIA_ERR_ABORTED,
|
|
"Only use nsIDOMMediaError codes!");
|
|
|
|
// Since we have multiple paths calling into DecodeError, e.g.
|
|
// MediaKeys::Terminated and EMEH264Decoder::Error. We should take the 1st
|
|
// one only in order not to fire multiple 'error' events.
|
|
if (mError) {
|
|
return;
|
|
}
|
|
|
|
mError = new MediaError(this, aErrorCode);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("error"));
|
|
if (mReadyState == nsIDOMHTMLMediaElement::HAVE_NOTHING) {
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_EMPTY);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("emptied"));
|
|
} else {
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_IDLE);
|
|
}
|
|
ChangeDelayLoadStatus(false);
|
|
}
|
|
|
|
void HTMLMediaElement::PlaybackEnded()
|
|
{
|
|
// We changed state which can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
|
|
NS_ASSERTION(!mDecoder || mDecoder->IsEndedOrShutdown(),
|
|
"Decoder fired ended, but not in ended state");
|
|
|
|
// Discard all output streams that have finished now.
|
|
for (int32_t i = mOutputStreams.Length() - 1; i >= 0; --i) {
|
|
if (mOutputStreams[i].mFinishWhenEnded) {
|
|
mOutputStreams.RemoveElementAt(i);
|
|
}
|
|
}
|
|
|
|
if (mSrcStream || (mDecoder && mDecoder->IsInfinite())) {
|
|
LOG(LogLevel::Debug, ("%p, got duration by reaching the end of the resource", this));
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("durationchange"));
|
|
}
|
|
|
|
if (HasAttr(kNameSpaceID_None, nsGkAtoms::loop)) {
|
|
SetCurrentTime(0);
|
|
return;
|
|
}
|
|
|
|
Pause();
|
|
|
|
FireTimeUpdate(false);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("ended"));
|
|
}
|
|
|
|
void HTMLMediaElement::SeekStarted()
|
|
{
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("seeking"));
|
|
}
|
|
|
|
void HTMLMediaElement::SeekCompleted()
|
|
{
|
|
mPlayingBeforeSeek = false;
|
|
SetPlayedOrSeeked(true);
|
|
FireTimeUpdate(false);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("seeked"));
|
|
// We changed whether we're seeking so we need to AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
if (mTextTrackManager) {
|
|
mTextTrackManager->DidSeek();
|
|
}
|
|
if (mCurrentPlayRangeStart == -1.0) {
|
|
mCurrentPlayRangeStart = CurrentTime();
|
|
}
|
|
// Unset the variable on seekend
|
|
mPlayingThroughTheAudioChannelBeforeSeek = false;
|
|
}
|
|
|
|
void HTMLMediaElement::NotifySuspendedByCache(bool aIsSuspended)
|
|
{
|
|
mDownloadSuspendedByCache = aIsSuspended;
|
|
}
|
|
|
|
void HTMLMediaElement::DownloadSuspended()
|
|
{
|
|
if (mNetworkState == nsIDOMHTMLMediaElement::NETWORK_LOADING) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("progress"));
|
|
}
|
|
if (mBegun) {
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_IDLE);
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::DownloadResumed(bool aForceNetworkLoading)
|
|
{
|
|
if (mBegun || aForceNetworkLoading) {
|
|
ChangeNetworkState(nsIDOMHTMLMediaElement::NETWORK_LOADING);
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::CheckProgress(bool aHaveNewProgress)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(mNetworkState == nsIDOMHTMLMediaElement::NETWORK_LOADING);
|
|
|
|
TimeStamp now = TimeStamp::NowLoRes();
|
|
|
|
if (aHaveNewProgress) {
|
|
mDataTime = now;
|
|
}
|
|
|
|
// If this is the first progress, or PROGRESS_MS has passed since the last
|
|
// progress event fired and more data has arrived since then, fire a
|
|
// progress event.
|
|
NS_ASSERTION((mProgressTime.IsNull() && !aHaveNewProgress) ||
|
|
!mDataTime.IsNull(),
|
|
"null TimeStamp mDataTime should not be used in comparison");
|
|
if (mProgressTime.IsNull() ? aHaveNewProgress
|
|
: (now - mProgressTime >= TimeDuration::FromMilliseconds(PROGRESS_MS) &&
|
|
mDataTime > mProgressTime)) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("progress"));
|
|
// Resolution() ensures that future data will have now > mProgressTime,
|
|
// and so will trigger another event. mDataTime is not reset because it
|
|
// is still required to detect stalled; it is similarly offset by
|
|
// resolution to indicate the new data has not yet arrived.
|
|
mProgressTime = now - TimeDuration::Resolution();
|
|
if (mDataTime > mProgressTime) {
|
|
mDataTime = mProgressTime;
|
|
}
|
|
if (!mProgressTimer) {
|
|
NS_ASSERTION(aHaveNewProgress,
|
|
"timer dispatched when there was no timer");
|
|
// Were stalled. Restart timer.
|
|
StartProgressTimer();
|
|
if (!mLoadedDataFired) {
|
|
ChangeDelayLoadStatus(true);
|
|
}
|
|
}
|
|
// Download statistics may have been updated, force a recheck of the readyState.
|
|
UpdateReadyStateInternal();
|
|
}
|
|
|
|
if (now - mDataTime >= TimeDuration::FromMilliseconds(STALL_MS)) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("stalled"));
|
|
|
|
if (mMediaSource) {
|
|
ChangeDelayLoadStatus(false);
|
|
}
|
|
|
|
NS_ASSERTION(mProgressTimer, "detected stalled without timer");
|
|
// Stop timer events, which prevents repeated stalled events until there
|
|
// is more progress.
|
|
StopProgress();
|
|
}
|
|
|
|
AddRemoveSelfReference();
|
|
}
|
|
|
|
/* static */
|
|
void HTMLMediaElement::ProgressTimerCallback(nsITimer* aTimer, void* aClosure)
|
|
{
|
|
auto decoder = static_cast<HTMLMediaElement*>(aClosure);
|
|
decoder->CheckProgress(false);
|
|
}
|
|
|
|
void HTMLMediaElement::StartProgressTimer()
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(mNetworkState == nsIDOMHTMLMediaElement::NETWORK_LOADING);
|
|
NS_ASSERTION(!mProgressTimer, "Already started progress timer.");
|
|
|
|
mProgressTimer = do_CreateInstance("@mozilla.org/timer;1");
|
|
mProgressTimer->InitWithNamedFuncCallback(
|
|
ProgressTimerCallback, this, PROGRESS_MS, nsITimer::TYPE_REPEATING_SLACK,
|
|
"HTMLMediaElement::ProgressTimerCallback");
|
|
}
|
|
|
|
void HTMLMediaElement::StartProgress()
|
|
{
|
|
// Record the time now for detecting stalled.
|
|
mDataTime = TimeStamp::NowLoRes();
|
|
// Reset mProgressTime so that mDataTime is not indicating bytes received
|
|
// after the last progress event.
|
|
mProgressTime = TimeStamp();
|
|
StartProgressTimer();
|
|
}
|
|
|
|
void HTMLMediaElement::StopProgress()
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
if (!mProgressTimer) {
|
|
return;
|
|
}
|
|
|
|
mProgressTimer->Cancel();
|
|
mProgressTimer = nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::DownloadProgressed()
|
|
{
|
|
if (mNetworkState != nsIDOMHTMLMediaElement::NETWORK_LOADING) {
|
|
return;
|
|
}
|
|
CheckProgress(true);
|
|
}
|
|
|
|
bool HTMLMediaElement::ShouldCheckAllowOrigin()
|
|
{
|
|
return mCORSMode != CORS_NONE;
|
|
}
|
|
|
|
bool HTMLMediaElement::IsCORSSameOrigin()
|
|
{
|
|
bool subsumes;
|
|
RefPtr<nsIPrincipal> principal = GetCurrentPrincipal();
|
|
return
|
|
(NS_SUCCEEDED(NodePrincipal()->Subsumes(principal, &subsumes)) && subsumes) ||
|
|
ShouldCheckAllowOrigin();
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::UpdateReadyStateInternal()
|
|
{
|
|
if (!mDecoder && !mSrcStream) {
|
|
// Not initialized - bail out.
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Not initialized", this));
|
|
return;
|
|
}
|
|
|
|
if (mDecoder && mReadyState < nsIDOMHTMLMediaElement::HAVE_METADATA) {
|
|
// aNextFrame might have a next frame because the decoder can advance
|
|
// on its own thread before MetadataLoaded gets a chance to run.
|
|
// The arrival of more data can't change us out of this readyState.
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Decoder ready state < HAVE_METADATA", this));
|
|
return;
|
|
}
|
|
|
|
if (mSrcStream && mReadyState < nsIDOMHTMLMediaElement::HAVE_METADATA) {
|
|
bool hasAudio = !AudioTracks()->IsEmpty();
|
|
bool hasVideo = !VideoTracks()->IsEmpty();
|
|
|
|
if (!hasAudio && !hasVideo) {
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Stream with no tracks", this));
|
|
return;
|
|
}
|
|
|
|
if (IsVideo() && hasVideo && !HasVideo()) {
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Stream waiting for video", this));
|
|
return;
|
|
}
|
|
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() Stream has "
|
|
"metadata; audioTracks=%d, videoTracks=%d, "
|
|
"hasVideoFrame=%d", this, AudioTracks()->Length(),
|
|
VideoTracks()->Length(), HasVideo()));
|
|
|
|
// We are playing a stream that has video and a video frame is now set.
|
|
// This means we have all metadata needed to change ready state.
|
|
MediaInfo mediaInfo = mMediaInfo;
|
|
if (hasAudio) {
|
|
mediaInfo.EnableAudio();
|
|
}
|
|
if (hasVideo) {
|
|
mediaInfo.EnableVideo();
|
|
}
|
|
MetadataLoaded(&mediaInfo, nsAutoPtr<const MetadataTags>(nullptr));
|
|
}
|
|
|
|
enum NextFrameStatus nextFrameStatus = NextFrameStatus();
|
|
if (mDecoder && nextFrameStatus == NEXT_FRAME_UNAVAILABLE) {
|
|
nextFrameStatus = mDecoder->NextFrameBufferedStatus();
|
|
}
|
|
|
|
if (nextFrameStatus == MediaDecoderOwner::NEXT_FRAME_UNAVAILABLE_SEEKING) {
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"NEXT_FRAME_UNAVAILABLE_SEEKING; Forcing HAVE_METADATA", this));
|
|
ChangeReadyState(nsIDOMHTMLMediaElement::HAVE_METADATA);
|
|
return;
|
|
}
|
|
|
|
if (IsVideo() && HasVideo() && !IsPlaybackEnded() &&
|
|
GetImageContainer() && !GetImageContainer()->HasCurrentImage()) {
|
|
// Don't advance if we are playing video, but don't have a video frame.
|
|
// Also, if video became available after advancing to HAVE_CURRENT_DATA
|
|
// while we are still playing, we need to revert to HAVE_METADATA until
|
|
// a video frame is available.
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Playing video but no video frame; Forcing HAVE_METADATA", this));
|
|
ChangeReadyState(nsIDOMHTMLMediaElement::HAVE_METADATA);
|
|
return;
|
|
}
|
|
|
|
if (mDownloadSuspendedByCache && mDecoder && !mDecoder->IsEndedOrShutdown() &&
|
|
mFirstFrameLoaded) {
|
|
// The decoder has signaled that the download has been suspended by the
|
|
// media cache. So move readyState into HAVE_ENOUGH_DATA, in case there's
|
|
// script waiting for a "canplaythrough" event; without this forced
|
|
// transition, we will never fire the "canplaythrough" event if the
|
|
// media cache is too small, and scripts are bound to fail. Don't force
|
|
// this transition if the decoder is in ended state; the readyState
|
|
// should remain at HAVE_CURRENT_DATA in this case.
|
|
// Note that this state transition includes the case where we finished
|
|
// downloaded the whole data stream.
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Decoder download suspended by cache", this));
|
|
ChangeReadyState(nsIDOMHTMLMediaElement::HAVE_ENOUGH_DATA);
|
|
return;
|
|
}
|
|
|
|
if (nextFrameStatus != MediaDecoderOwner::NEXT_FRAME_AVAILABLE) {
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Next frame not available", this));
|
|
if (mFirstFrameLoaded) {
|
|
ChangeReadyState(nsIDOMHTMLMediaElement::HAVE_CURRENT_DATA);
|
|
}
|
|
if (!mWaitingFired && nextFrameStatus == MediaDecoderOwner::NEXT_FRAME_UNAVAILABLE_BUFFERING) {
|
|
FireTimeUpdate(false);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("waiting"));
|
|
mWaitingFired = true;
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (!mFirstFrameLoaded) {
|
|
// We haven't yet loaded the first frame, making us unable to determine
|
|
// if we have enough valid data at the present stage.
|
|
return;
|
|
}
|
|
|
|
if (mSrcStream) {
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Stream HAVE_ENOUGH_DATA", this));
|
|
ChangeReadyState(nsIDOMHTMLMediaElement::HAVE_ENOUGH_DATA);
|
|
return;
|
|
}
|
|
|
|
// Now see if we should set HAVE_ENOUGH_DATA.
|
|
// If it's something we don't know the size of, then we can't
|
|
// make a real estimate, so we go straight to HAVE_ENOUGH_DATA once
|
|
// we've downloaded enough data that our download rate is considered
|
|
// reliable. We have to move to HAVE_ENOUGH_DATA at some point or
|
|
// autoplay elements for live streams will never play. Otherwise we
|
|
// move to HAVE_ENOUGH_DATA if we can play through the entire media
|
|
// without stopping to buffer.
|
|
if (mDecoder->CanPlayThrough()) {
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Decoder can play through", this));
|
|
ChangeReadyState(nsIDOMHTMLMediaElement::HAVE_ENOUGH_DATA);
|
|
return;
|
|
}
|
|
LOG(LogLevel::Debug, ("MediaElement %p UpdateReadyStateInternal() "
|
|
"Default; Decoder has future data", this));
|
|
ChangeReadyState(nsIDOMHTMLMediaElement::HAVE_FUTURE_DATA);
|
|
}
|
|
|
|
static const char* const gReadyStateToString[] = {
|
|
"HAVE_NOTHING",
|
|
"HAVE_METADATA",
|
|
"HAVE_CURRENT_DATA",
|
|
"HAVE_FUTURE_DATA",
|
|
"HAVE_ENOUGH_DATA"
|
|
};
|
|
|
|
void HTMLMediaElement::ChangeReadyState(nsMediaReadyState aState)
|
|
{
|
|
nsMediaReadyState oldState = mReadyState;
|
|
mReadyState = aState;
|
|
|
|
if (mNetworkState == nsIDOMHTMLMediaElement::NETWORK_EMPTY ||
|
|
oldState == mReadyState) {
|
|
return;
|
|
}
|
|
|
|
LOG(LogLevel::Debug, ("%p Ready state changed to %s", this, gReadyStateToString[aState]));
|
|
|
|
UpdateAudioChannelPlayingState();
|
|
|
|
// Handle raising of "waiting" event during seek (see 4.8.10.9)
|
|
// or
|
|
// 4.8.12.7 Ready states:
|
|
// "If the previous ready state was HAVE_FUTURE_DATA or more, and the new
|
|
// ready state is HAVE_CURRENT_DATA or less
|
|
// If the media element was potentially playing before its readyState
|
|
// attribute changed to a value lower than HAVE_FUTURE_DATA, and the element
|
|
// has not ended playback, and playback has not stopped due to errors,
|
|
// paused for user interaction, or paused for in-band content, the user agent
|
|
// must queue a task to fire a simple event named timeupdate at the element,
|
|
// and queue a task to fire a simple event named waiting at the element."
|
|
// (bug 1298594)
|
|
if (mPlayingBeforeSeek &&
|
|
mReadyState < nsIDOMHTMLMediaElement::HAVE_FUTURE_DATA) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("waiting"));
|
|
} else if (oldState >= nsIDOMHTMLMediaElement::HAVE_FUTURE_DATA &&
|
|
mReadyState < nsIDOMHTMLMediaElement::HAVE_FUTURE_DATA &&
|
|
!Paused() && !Ended() && !mError) {
|
|
FireTimeUpdate(false);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("waiting"));
|
|
}
|
|
|
|
if (oldState < nsIDOMHTMLMediaElement::HAVE_CURRENT_DATA &&
|
|
mReadyState >= nsIDOMHTMLMediaElement::HAVE_CURRENT_DATA &&
|
|
!mLoadedDataFired) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("loadeddata"));
|
|
mLoadedDataFired = true;
|
|
}
|
|
|
|
// bug 1298594
|
|
#if(0)
|
|
if (mReadyState == nsIDOMHTMLMediaElement::HAVE_CURRENT_DATA) {
|
|
mWaitingFired = false;
|
|
}
|
|
#endif
|
|
|
|
if (oldState < nsIDOMHTMLMediaElement::HAVE_FUTURE_DATA &&
|
|
mReadyState >= nsIDOMHTMLMediaElement::HAVE_FUTURE_DATA) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("canplay"));
|
|
}
|
|
|
|
CheckAutoplayDataReady();
|
|
|
|
if (oldState < nsIDOMHTMLMediaElement::HAVE_FUTURE_DATA &&
|
|
mReadyState >= nsIDOMHTMLMediaElement::HAVE_FUTURE_DATA &&
|
|
IsPotentiallyPlaying()) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("playing"));
|
|
}
|
|
|
|
if (oldState < nsIDOMHTMLMediaElement::HAVE_ENOUGH_DATA &&
|
|
mReadyState >= nsIDOMHTMLMediaElement::HAVE_ENOUGH_DATA) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("canplaythrough"));
|
|
}
|
|
}
|
|
|
|
static const char* const gNetworkStateToString[] = {
|
|
"EMPTY",
|
|
"IDLE",
|
|
"LOADING",
|
|
"NO_SOURCE"
|
|
};
|
|
|
|
void HTMLMediaElement::ChangeNetworkState(nsMediaNetworkState aState)
|
|
{
|
|
if (mNetworkState == aState) {
|
|
return;
|
|
}
|
|
|
|
nsMediaNetworkState oldState = mNetworkState;
|
|
mNetworkState = aState;
|
|
LOG(LogLevel::Debug, ("%p Network state changed to %s", this, gNetworkStateToString[aState]));
|
|
|
|
// TODO: |mBegun| reflects the download status. We should be able to remove
|
|
// it and check |mNetworkState| only.
|
|
|
|
if (oldState == nsIDOMHTMLMediaElement::NETWORK_LOADING) {
|
|
// Reset |mBegun| since we're not downloading anymore.
|
|
mBegun = false;
|
|
// Stop progress notification when exiting NETWORK_LOADING.
|
|
StopProgress();
|
|
}
|
|
|
|
if (mNetworkState == nsIDOMHTMLMediaElement::NETWORK_LOADING) {
|
|
// Download is begun.
|
|
mBegun = true;
|
|
// Start progress notification when entering NETWORK_LOADING.
|
|
StartProgress();
|
|
} else if (mNetworkState == nsIDOMHTMLMediaElement::NETWORK_IDLE && !mError) {
|
|
// Fire 'suspend' event when entering NETWORK_IDLE and no error presented.
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("suspend"));
|
|
}
|
|
|
|
// Changing mNetworkState affects AddRemoveSelfReference().
|
|
AddRemoveSelfReference();
|
|
}
|
|
|
|
bool HTMLMediaElement::CanActivateAutoplay()
|
|
{
|
|
// For stream inputs, we activate autoplay on HAVE_NOTHING because
|
|
// this element itself might be blocking the stream from making progress by
|
|
// being paused. We also activate autopaly when playing a media source since
|
|
// the data download is controlled by the script and there is no way to
|
|
// evaluate MediaDecoder::CanPlayThrough().
|
|
return !mPausedForInactiveDocumentOrChannel &&
|
|
mAutoplaying &&
|
|
mPaused &&
|
|
((mDecoder && mReadyState >= nsIDOMHTMLMediaElement::HAVE_ENOUGH_DATA) ||
|
|
mSrcStream || mMediaSource) &&
|
|
HasAttr(kNameSpaceID_None, nsGkAtoms::autoplay) &&
|
|
mAutoplayEnabled &&
|
|
!IsEditable();
|
|
}
|
|
|
|
void HTMLMediaElement::CheckAutoplayDataReady()
|
|
{
|
|
if (!CanActivateAutoplay()) {
|
|
return;
|
|
}
|
|
|
|
if (Preferences::GetBool("media.block-play-until-visible", false) &&
|
|
OwnerDoc()->Hidden()) {
|
|
LOG(LogLevel::Debug, ("%p Blocked autoplay because owner hidden.", this));
|
|
mPlayBlockedBecauseHidden = true;
|
|
return;
|
|
}
|
|
|
|
mPaused = false;
|
|
// We changed mPaused which can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
UpdateSrcMediaStreamPlaying();
|
|
UpdateAudioChannelPlayingState();
|
|
|
|
if (mDecoder) {
|
|
SetPlayedOrSeeked(true);
|
|
if (mCurrentPlayRangeStart == -1.0) {
|
|
mCurrentPlayRangeStart = CurrentTime();
|
|
}
|
|
mDecoder->Play();
|
|
} else if (mSrcStream) {
|
|
SetPlayedOrSeeked(true);
|
|
}
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("play"));
|
|
|
|
}
|
|
|
|
bool HTMLMediaElement::IsActive() const
|
|
{
|
|
nsIDocument* ownerDoc = OwnerDoc();
|
|
return ownerDoc && ownerDoc->IsActive() && ownerDoc->IsVisible();
|
|
}
|
|
|
|
bool HTMLMediaElement::IsHidden() const
|
|
{
|
|
if (mElementInTreeState == ELEMENT_NOT_INTREE_HAD_INTREE) {
|
|
return true;
|
|
}
|
|
nsIDocument* ownerDoc = OwnerDoc();
|
|
return !ownerDoc || ownerDoc->Hidden();
|
|
}
|
|
|
|
VideoFrameContainer* HTMLMediaElement::GetVideoFrameContainer()
|
|
{
|
|
if (mVideoFrameContainer)
|
|
return mVideoFrameContainer;
|
|
|
|
// Only video frames need an image container.
|
|
if (!IsVideo()) {
|
|
return nullptr;
|
|
}
|
|
|
|
mVideoFrameContainer =
|
|
new VideoFrameContainer(this, LayerManager::CreateImageContainer(ImageContainer::ASYNCHRONOUS));
|
|
|
|
return mVideoFrameContainer;
|
|
}
|
|
|
|
VideoFrameContainer* HTMLMediaElement::GetOverlayImageVideoFrameContainer()
|
|
{
|
|
if (mVideoFrameContainer)
|
|
return mVideoFrameContainer;
|
|
|
|
// Only video frames need an image container.
|
|
if (!IsVideo()) {
|
|
return nullptr;
|
|
}
|
|
|
|
mVideoFrameContainer =
|
|
new VideoFrameContainer(this, LayerManager::CreateImageContainer(ImageContainer::ASYNCHRONOUS_OVERLAY));
|
|
|
|
return mVideoFrameContainer;
|
|
}
|
|
|
|
nsresult HTMLMediaElement::DispatchEvent(const nsAString& aName)
|
|
{
|
|
LOG_EVENT(LogLevel::Debug, ("%p Dispatching event %s", this,
|
|
NS_ConvertUTF16toUTF8(aName).get()));
|
|
|
|
// Save events that occur while in the bfcache. These will be dispatched
|
|
// if the page comes out of the bfcache.
|
|
if (mEventDeliveryPaused) {
|
|
mPendingEvents.AppendElement(aName);
|
|
return NS_OK;
|
|
}
|
|
|
|
return nsContentUtils::DispatchTrustedEvent(OwnerDoc(),
|
|
static_cast<nsIContent*>(this),
|
|
aName,
|
|
false,
|
|
false);
|
|
}
|
|
|
|
nsresult HTMLMediaElement::DispatchAsyncEvent(const nsAString& aName)
|
|
{
|
|
LOG_EVENT(LogLevel::Debug, ("%p Queuing event %s", this,
|
|
NS_ConvertUTF16toUTF8(aName).get()));
|
|
|
|
// Save events that occur while in the bfcache. These will be dispatched
|
|
// if the page comes out of the bfcache.
|
|
if (mEventDeliveryPaused) {
|
|
mPendingEvents.AppendElement(aName);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIRunnable> event = new nsAsyncEventRunner(aName, this);
|
|
NS_DispatchToMainThread(event);
|
|
|
|
// Only collect rebuffer and stall rate stats for MSE video.
|
|
if (!mMediaSource) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if ((aName.EqualsLiteral("play") || aName.EqualsLiteral("playing"))) {
|
|
mPlayTime.Start();
|
|
mJoinLatency.Pause();
|
|
} else if (aName.EqualsLiteral("waiting")) {
|
|
mPlayTime.Pause();
|
|
Telemetry::Accumulate(Telemetry::VIDEO_MSE_BUFFERING_COUNT, 1);
|
|
} else if (aName.EqualsLiteral("pause")) {
|
|
mPlayTime.Pause();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLMediaElement::DispatchPendingMediaEvents()
|
|
{
|
|
NS_ASSERTION(!mEventDeliveryPaused,
|
|
"Must not be in bfcache when dispatching pending media events");
|
|
|
|
uint32_t count = mPendingEvents.Length();
|
|
for (uint32_t i = 0; i < count; ++i) {
|
|
DispatchAsyncEvent(mPendingEvents[i]);
|
|
}
|
|
mPendingEvents.Clear();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
bool HTMLMediaElement::IsPotentiallyPlaying() const
|
|
{
|
|
// TODO:
|
|
// playback has not stopped due to errors,
|
|
// and the element has not paused for user interaction
|
|
return
|
|
!mPaused &&
|
|
(mReadyState == nsIDOMHTMLMediaElement::HAVE_ENOUGH_DATA ||
|
|
mReadyState == nsIDOMHTMLMediaElement::HAVE_FUTURE_DATA) &&
|
|
!IsPlaybackEnded();
|
|
}
|
|
|
|
bool HTMLMediaElement::IsPlaybackEnded() const
|
|
{
|
|
// TODO:
|
|
// the current playback position is equal to the effective end of the media resource.
|
|
// See bug 449157.
|
|
return mReadyState >= nsIDOMHTMLMediaElement::HAVE_METADATA &&
|
|
mDecoder ? mDecoder->IsEndedOrShutdown() : false;
|
|
}
|
|
|
|
already_AddRefed<nsIPrincipal> HTMLMediaElement::GetCurrentPrincipal()
|
|
{
|
|
if (mDecoder) {
|
|
return mDecoder->GetCurrentPrincipal();
|
|
}
|
|
if (mSrcStream) {
|
|
RefPtr<nsIPrincipal> principal = mSrcStream->GetPrincipal();
|
|
return principal.forget();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyDecoderPrincipalChanged()
|
|
{
|
|
RefPtr<nsIPrincipal> principal = GetCurrentPrincipal();
|
|
|
|
mDecoder->UpdateSameOriginStatus(!principal || IsCORSSameOrigin());
|
|
|
|
for (uint32_t i = 0; i < mOutputStreams.Length(); ++i) {
|
|
OutputMediaStream* ms = &mOutputStreams[i];
|
|
ms->mStream->SetCORSMode(mCORSMode);
|
|
ms->mStream->CombineWithPrincipal(principal);
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::UpdateMediaSize(const nsIntSize& aSize)
|
|
{
|
|
if (IsVideo() && mReadyState != HAVE_NOTHING &&
|
|
mMediaInfo.mVideo.mDisplay != aSize) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("resize"));
|
|
}
|
|
|
|
mMediaInfo.mVideo.mDisplay = aSize;
|
|
mWatchManager.ManualNotify(&HTMLMediaElement::UpdateReadyStateInternal);
|
|
}
|
|
|
|
void HTMLMediaElement::UpdateInitialMediaSize(const nsIntSize& aSize)
|
|
{
|
|
if (!mMediaInfo.HasVideo()) {
|
|
UpdateMediaSize(aSize);
|
|
}
|
|
|
|
if (!mMediaStreamSizeListener) {
|
|
return;
|
|
}
|
|
RefPtr<MediaStream> stream = GetSrcMediaStream();
|
|
if (stream) {
|
|
stream->RemoveListener(mMediaStreamSizeListener);
|
|
}
|
|
mMediaStreamSizeListener->Forget();
|
|
mMediaStreamSizeListener = nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::SuspendOrResumeElement(bool aPauseElement, bool aSuspendEvents)
|
|
{
|
|
LOG(LogLevel::Debug, ("%p SuspendOrResumeElement(pause=%d, suspendEvents=%d) hidden=%d",
|
|
this, aPauseElement, aSuspendEvents, OwnerDoc()->Hidden()));
|
|
|
|
if (aPauseElement != mPausedForInactiveDocumentOrChannel) {
|
|
mPausedForInactiveDocumentOrChannel = aPauseElement;
|
|
UpdateSrcMediaStreamPlaying();
|
|
UpdateAudioChannelPlayingState();
|
|
if (aPauseElement) {
|
|
#if(0)
|
|
if (mMediaSource) {
|
|
ReportMSETelemetry();
|
|
#ifdef MOZ_EME
|
|
ReportEMETelemetry();
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
#ifdef MOZ_EME
|
|
// For EME content, force destruction of the CDM client (and CDM
|
|
// instance if this is the last client for that CDM instance) and
|
|
// the CDM's decoder. This ensures the CDM gets reliable and prompt
|
|
// shutdown notifications, as it may have book-keeping it needs
|
|
// to do on shutdown.
|
|
if (mMediaKeys) {
|
|
mMediaKeys->Shutdown();
|
|
mMediaKeys = nullptr;
|
|
if (mDecoder) {
|
|
ShutdownDecoder();
|
|
}
|
|
}
|
|
#endif
|
|
if (mDecoder) {
|
|
mDecoder->Pause();
|
|
mDecoder->Suspend();
|
|
}
|
|
mEventDeliveryPaused = aSuspendEvents;
|
|
} else {
|
|
#ifdef MOZ_EME
|
|
MOZ_ASSERT(!mMediaKeys);
|
|
#endif
|
|
if (mDecoder) {
|
|
mDecoder->Resume(false);
|
|
if (!mPaused && !mDecoder->IsEndedOrShutdown()) {
|
|
mDecoder->Play();
|
|
}
|
|
}
|
|
if (mEventDeliveryPaused) {
|
|
mEventDeliveryPaused = false;
|
|
DispatchPendingMediaEvents();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool HTMLMediaElement::IsBeingDestroyed()
|
|
{
|
|
nsIDocument* ownerDoc = OwnerDoc();
|
|
nsIDocShell* docShell = ownerDoc ? ownerDoc->GetDocShell() : nullptr;
|
|
bool isBeingDestroyed = false;
|
|
if (docShell) {
|
|
docShell->IsBeingDestroyed(&isBeingDestroyed);
|
|
}
|
|
return isBeingDestroyed;
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyOwnerDocumentActivityChanged()
|
|
{
|
|
bool pauseElement = NotifyOwnerDocumentActivityChangedInternal();
|
|
if (pauseElement && mAudioChannelAgent &&
|
|
// On B2G, NotifyOwnerDocumentActivityChangedInternal may return true for
|
|
// two reasons: the document no longer being active, or the element being
|
|
// paused by the audio channel. However we are only interested in the
|
|
// first case here, so we need to filter out the second case.
|
|
(!UseAudioChannelAPI() || !ComputedMuted())) {
|
|
// If the element is being paused since we are navigating away from the
|
|
// document, notify the audio channel agent.
|
|
// Be careful to ignore this event during a docshell frame swap.
|
|
auto docShell = static_cast<nsDocShell*>(OwnerDoc()->GetDocShell());
|
|
if (!docShell) {
|
|
return;
|
|
}
|
|
if (!docShell->InFrameSwap()) {
|
|
NotifyAudioChannelAgent(false);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool
|
|
HTMLMediaElement::NotifyOwnerDocumentActivityChangedInternal()
|
|
{
|
|
nsIDocument* ownerDoc = OwnerDoc();
|
|
if (mDecoder && !IsBeingDestroyed()) {
|
|
mDecoder->SetElementVisibility(!ownerDoc->Hidden());
|
|
mDecoder->NotifyOwnerActivityChanged();
|
|
}
|
|
|
|
bool pauseElement = !IsActive();
|
|
// Only pause the element when we start playing. If we pause without playing
|
|
// audio, the resource loading would be affected unexpectedly. For example,
|
|
// the media element is muted by default, but we don't want this behavior
|
|
// interrupting the loading process.
|
|
if (UseAudioChannelAPI() && mAudioChannelAgent) {
|
|
pauseElement |= ComputedMuted();
|
|
}
|
|
|
|
SuspendOrResumeElement(pauseElement, !IsActive());
|
|
|
|
if (!mPausedForInactiveDocumentOrChannel &&
|
|
mPlayBlockedBecauseHidden &&
|
|
!OwnerDoc()->Hidden()) {
|
|
LOG(LogLevel::Debug, ("%p Resuming playback now that owner doc is visble.", this));
|
|
mPlayBlockedBecauseHidden = false;
|
|
Play();
|
|
}
|
|
|
|
AddRemoveSelfReference();
|
|
|
|
return pauseElement;
|
|
}
|
|
|
|
void HTMLMediaElement::AddRemoveSelfReference()
|
|
{
|
|
// XXX we could release earlier here in many situations if we examined
|
|
// which event listeners are attached. Right now we assume there is a
|
|
// potential listener for every event. We would also have to keep the
|
|
// element alive if it was playing and producing audio output --- right now
|
|
// that's covered by the !mPaused check.
|
|
nsIDocument* ownerDoc = OwnerDoc();
|
|
|
|
// See the comment at the top of this file for the explanation of this
|
|
// boolean expression.
|
|
bool needSelfReference = !mShuttingDown &&
|
|
ownerDoc->IsActive() &&
|
|
(mDelayingLoadEvent ||
|
|
(!mPaused && mDecoder && !mDecoder->IsEndedOrShutdown()) ||
|
|
(!mPaused && mSrcStream && !mSrcStream->IsFinished()) ||
|
|
(mDecoder && mDecoder->IsSeeking()) ||
|
|
CanActivateAutoplay() ||
|
|
(mMediaSource ? mProgressTimer :
|
|
mNetworkState == nsIDOMHTMLMediaElement::NETWORK_LOADING));
|
|
|
|
if (needSelfReference != mHasSelfReference) {
|
|
mHasSelfReference = needSelfReference;
|
|
if (needSelfReference) {
|
|
// The observer service will hold a strong reference to us. This
|
|
// will do to keep us alive. We need to know about shutdown so that
|
|
// we can release our self-reference.
|
|
nsContentUtils::RegisterShutdownObserver(this);
|
|
} else {
|
|
// Dispatch Release asynchronously so that we don't destroy this object
|
|
// inside a call stack of method calls on this object
|
|
nsCOMPtr<nsIRunnable> event =
|
|
NS_NewRunnableMethod(this, &HTMLMediaElement::DoRemoveSelfReference);
|
|
NS_DispatchToMainThread(event);
|
|
}
|
|
}
|
|
|
|
UpdateAudioChannelPlayingState();
|
|
}
|
|
|
|
void HTMLMediaElement::DoRemoveSelfReference()
|
|
{
|
|
// We don't need the shutdown observer anymore. Unregistering releases
|
|
// its reference to us, which we were using as our self-reference.
|
|
nsContentUtils::UnregisterShutdownObserver(this);
|
|
}
|
|
|
|
nsresult HTMLMediaElement::Observe(nsISupports* aSubject,
|
|
const char* aTopic, const char16_t* aData)
|
|
{
|
|
if (strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID) == 0) {
|
|
mShuttingDown = true;
|
|
AddRemoveSelfReference();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
HTMLMediaElement::IsNodeOfType(uint32_t aFlags) const
|
|
{
|
|
return !(aFlags & ~(eCONTENT | eMEDIA));
|
|
}
|
|
|
|
void HTMLMediaElement::DispatchAsyncSourceError(nsIContent* aSourceElement)
|
|
{
|
|
LOG_EVENT(LogLevel::Debug, ("%p Queuing simple source error event", this));
|
|
|
|
nsCOMPtr<nsIRunnable> event = new nsSourceErrorEventRunner(this, aSourceElement);
|
|
NS_DispatchToMainThread(event);
|
|
}
|
|
|
|
void HTMLMediaElement::NotifyAddedSource()
|
|
{
|
|
// If a source element is inserted as a child of a media element
|
|
// that has no src attribute and whose networkState has the value
|
|
// NETWORK_EMPTY, the user agent must invoke the media element's
|
|
// resource selection algorithm.
|
|
if (!HasAttr(kNameSpaceID_None, nsGkAtoms::src) &&
|
|
mNetworkState == nsIDOMHTMLMediaElement::NETWORK_EMPTY)
|
|
{
|
|
QueueSelectResourceTask();
|
|
}
|
|
|
|
// A load was paused in the resource selection algorithm, waiting for
|
|
// a new source child to be added, resume the resource selection algorithm.
|
|
if (mLoadWaitStatus == WAITING_FOR_SOURCE) {
|
|
// Rest the flag so we don't queue multiple LoadFromSourceTask() when
|
|
// multiple <source> are attached in an event loop.
|
|
mLoadWaitStatus = NOT_WAITING;
|
|
QueueLoadFromSourceTask();
|
|
}
|
|
}
|
|
|
|
nsIContent* HTMLMediaElement::GetNextSource()
|
|
{
|
|
nsCOMPtr<nsIDOMNode> thisDomNode = do_QueryObject(this);
|
|
|
|
mSourceLoadCandidate = nullptr;
|
|
|
|
nsresult rv = NS_OK;
|
|
if (!mSourcePointer) {
|
|
// First time this has been run, create a selection to cover children.
|
|
mSourcePointer = new nsRange(this);
|
|
// If this media element is removed from the DOM, don't gravitate the
|
|
// range up to its ancestor, leave it attached to the media element.
|
|
mSourcePointer->SetEnableGravitationOnElementRemoval(false);
|
|
|
|
rv = mSourcePointer->SelectNodeContents(thisDomNode);
|
|
if (NS_FAILED(rv)) return nullptr;
|
|
|
|
rv = mSourcePointer->Collapse(true);
|
|
if (NS_FAILED(rv)) return nullptr;
|
|
}
|
|
|
|
while (true) {
|
|
#ifdef DEBUG
|
|
nsCOMPtr<nsIDOMNode> startContainer;
|
|
rv = mSourcePointer->GetStartContainer(getter_AddRefs(startContainer));
|
|
if (NS_FAILED(rv)) return nullptr;
|
|
NS_ASSERTION(startContainer == thisDomNode,
|
|
"Should only iterate over direct children");
|
|
#endif
|
|
|
|
int32_t startOffset = 0;
|
|
rv = mSourcePointer->GetStartOffset(&startOffset);
|
|
NS_ENSURE_SUCCESS(rv, nullptr);
|
|
|
|
if (uint32_t(startOffset) == GetChildCount())
|
|
return nullptr; // No more children.
|
|
|
|
// Advance the range to the next child.
|
|
rv = mSourcePointer->SetStart(thisDomNode, startOffset + 1);
|
|
NS_ENSURE_SUCCESS(rv, nullptr);
|
|
|
|
nsIContent* child = GetChildAt(startOffset);
|
|
|
|
// If child is a <source> element, it is the next candidate.
|
|
if (child && child->IsHTMLElement(nsGkAtoms::source)) {
|
|
mSourceLoadCandidate = child;
|
|
return child;
|
|
}
|
|
}
|
|
NS_NOTREACHED("Execution should not reach here!");
|
|
return nullptr;
|
|
}
|
|
|
|
void HTMLMediaElement::ChangeDelayLoadStatus(bool aDelay)
|
|
{
|
|
if (mDelayingLoadEvent == aDelay)
|
|
return;
|
|
|
|
mDelayingLoadEvent = aDelay;
|
|
|
|
LOG(LogLevel::Debug, ("%p ChangeDelayLoadStatus(%d) doc=0x%p", this, aDelay, mLoadBlockedDoc.get()));
|
|
if (mDecoder) {
|
|
mDecoder->SetLoadInBackground(!aDelay);
|
|
}
|
|
if (aDelay) {
|
|
mLoadBlockedDoc = OwnerDoc();
|
|
mLoadBlockedDoc->BlockOnload();
|
|
} else {
|
|
// mLoadBlockedDoc might be null due to GC unlinking
|
|
if (mLoadBlockedDoc) {
|
|
mLoadBlockedDoc->UnblockOnload(false);
|
|
mLoadBlockedDoc = nullptr;
|
|
}
|
|
}
|
|
|
|
// We changed mDelayingLoadEvent which can affect AddRemoveSelfReference
|
|
AddRemoveSelfReference();
|
|
}
|
|
|
|
already_AddRefed<nsILoadGroup> HTMLMediaElement::GetDocumentLoadGroup()
|
|
{
|
|
if (!OwnerDoc()->IsActive()) {
|
|
NS_WARNING("Load group requested for media element in inactive document.");
|
|
}
|
|
return OwnerDoc()->GetDocumentLoadGroup();
|
|
}
|
|
|
|
nsresult
|
|
HTMLMediaElement::CopyInnerTo(Element* aDest)
|
|
{
|
|
nsresult rv = nsGenericHTMLElement::CopyInnerTo(aDest);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
if (aDest->OwnerDoc()->IsStaticDocument()) {
|
|
HTMLMediaElement* dest = static_cast<HTMLMediaElement*>(aDest);
|
|
dest->mMediaInfo = mMediaInfo;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
already_AddRefed<TimeRanges>
|
|
HTMLMediaElement::Buffered() const
|
|
{
|
|
RefPtr<TimeRanges> ranges = new TimeRanges(ToSupports(OwnerDoc()));
|
|
if (mReadyState > nsIDOMHTMLMediaElement::HAVE_NOTHING) {
|
|
if (mDecoder) {
|
|
media::TimeIntervals buffered = mDecoder->GetBuffered();
|
|
if (!buffered.IsInvalid()) {
|
|
buffered.ToTimeRanges(ranges);
|
|
}
|
|
}
|
|
}
|
|
return ranges.forget();
|
|
}
|
|
|
|
nsresult HTMLMediaElement::GetBuffered(nsIDOMTimeRanges** aBuffered)
|
|
{
|
|
RefPtr<TimeRanges> ranges = Buffered();
|
|
ranges.forget(aBuffered);
|
|
return NS_OK;
|
|
}
|
|
|
|
void HTMLMediaElement::SetRequestHeaders(nsIHttpChannel* aChannel)
|
|
{
|
|
// Send Accept header for video and audio types only (Bug 489071)
|
|
SetAcceptHeader(aChannel);
|
|
|
|
// Media elements are likely candidates for HTTP Pipeline head of line
|
|
// blocking problems, so disable pipelines.
|
|
nsLoadFlags loadflags;
|
|
aChannel->GetLoadFlags(&loadflags);
|
|
loadflags |= nsIRequest::INHIBIT_PIPELINE;
|
|
aChannel->SetLoadFlags(loadflags);
|
|
|
|
// Apache doesn't send Content-Length when gzip transfer encoding is used,
|
|
// which prevents us from estimating the video length (if explicit Content-Duration
|
|
// and a length spec in the container are not present either) and from seeking.
|
|
// So, disable the standard "Accept-Encoding: gzip,deflate" that we usually send.
|
|
// See bug 614760.
|
|
aChannel->SetRequestHeader(NS_LITERAL_CSTRING("Accept-Encoding"),
|
|
EmptyCString(), false);
|
|
|
|
// Set the Referer header
|
|
aChannel->SetReferrerWithPolicy(OwnerDoc()->GetDocumentURI(),
|
|
OwnerDoc()->GetReferrerPolicy());
|
|
}
|
|
|
|
void HTMLMediaElement::FireTimeUpdate(bool aPeriodic)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Should be on main thread.");
|
|
|
|
TimeStamp now = TimeStamp::Now();
|
|
double time = CurrentTime();
|
|
|
|
// Fire a timeupdate event if this is not a periodic update (i.e. it's a
|
|
// timeupdate event mandated by the spec), or if it's a periodic update
|
|
// and TIMEUPDATE_MS has passed since the last timeupdate event fired and
|
|
// the time has changed.
|
|
if (!aPeriodic ||
|
|
(mLastCurrentTime != time &&
|
|
(mTimeUpdateTime.IsNull() ||
|
|
now - mTimeUpdateTime >= TimeDuration::FromMilliseconds(TIMEUPDATE_MS)))) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("timeupdate"));
|
|
mTimeUpdateTime = now;
|
|
mLastCurrentTime = time;
|
|
}
|
|
if (mFragmentEnd >= 0.0 && time >= mFragmentEnd) {
|
|
Pause();
|
|
mFragmentEnd = -1.0;
|
|
mFragmentStart = -1.0;
|
|
mDecoder->SetFragmentEndTime(mFragmentEnd);
|
|
}
|
|
|
|
// Update the cues displaying on the video.
|
|
// Here mTextTrackManager can be null if the cycle collector has unlinked
|
|
// us before our parent. In that case UnbindFromTree will call us
|
|
// when our parent is unlinked.
|
|
if (mTextTrackManager) {
|
|
mTextTrackManager->UpdateCueDisplay();
|
|
}
|
|
}
|
|
|
|
void HTMLMediaElement::GetCurrentSpec(nsCString& aString)
|
|
{
|
|
if (mLoadingSrc) {
|
|
mLoadingSrc->GetSpec(aString);
|
|
} else {
|
|
aString.Truncate();
|
|
}
|
|
}
|
|
|
|
double
|
|
HTMLMediaElement::MozFragmentEnd()
|
|
{
|
|
double duration = Duration();
|
|
|
|
// If there is no end fragment, or the fragment end is greater than the
|
|
// duration, return the duration.
|
|
return (mFragmentEnd < 0.0 || mFragmentEnd > duration) ? duration : mFragmentEnd;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetMozFragmentEnd(double* aTime)
|
|
{
|
|
*aTime = MozFragmentEnd();
|
|
return NS_OK;
|
|
}
|
|
|
|
static double ClampPlaybackRate(double aPlaybackRate)
|
|
{
|
|
if (aPlaybackRate == 0.0) {
|
|
return aPlaybackRate;
|
|
}
|
|
if (Abs(aPlaybackRate) < MIN_PLAYBACKRATE) {
|
|
return aPlaybackRate < 0 ? -MIN_PLAYBACKRATE : MIN_PLAYBACKRATE;
|
|
}
|
|
if (Abs(aPlaybackRate) > MAX_PLAYBACKRATE) {
|
|
return aPlaybackRate < 0 ? -MAX_PLAYBACKRATE : MAX_PLAYBACKRATE;
|
|
}
|
|
return aPlaybackRate;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetDefaultPlaybackRate(double* aDefaultPlaybackRate)
|
|
{
|
|
*aDefaultPlaybackRate = DefaultPlaybackRate();
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::SetDefaultPlaybackRate(double aDefaultPlaybackRate, ErrorResult& aRv)
|
|
{
|
|
if (aDefaultPlaybackRate < 0) {
|
|
aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
|
|
return;
|
|
}
|
|
|
|
mDefaultPlaybackRate = ClampPlaybackRate(aDefaultPlaybackRate);
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("ratechange"));
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::SetDefaultPlaybackRate(double aDefaultPlaybackRate)
|
|
{
|
|
ErrorResult rv;
|
|
SetDefaultPlaybackRate(aDefaultPlaybackRate, rv);
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetPlaybackRate(double* aPlaybackRate)
|
|
{
|
|
*aPlaybackRate = PlaybackRate();
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::SetPlaybackRate(double aPlaybackRate, ErrorResult& aRv)
|
|
{
|
|
// Changing the playback rate of a media that has more than two channels is
|
|
// not supported.
|
|
if (aPlaybackRate < 0) {
|
|
aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
|
|
return;
|
|
}
|
|
|
|
mPlaybackRate = ClampPlaybackRate(aPlaybackRate);
|
|
|
|
if (mPlaybackRate != 0.0 &&
|
|
(mPlaybackRate < 0 || mPlaybackRate > THRESHOLD_HIGH_PLAYBACKRATE_AUDIO ||
|
|
mPlaybackRate < THRESHOLD_LOW_PLAYBACKRATE_AUDIO)) {
|
|
SetMutedInternal(mMuted | MUTED_BY_INVALID_PLAYBACK_RATE);
|
|
} else {
|
|
SetMutedInternal(mMuted & ~MUTED_BY_INVALID_PLAYBACK_RATE);
|
|
}
|
|
|
|
if (mDecoder) {
|
|
mDecoder->SetPlaybackRate(mPlaybackRate);
|
|
}
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("ratechange"));
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::SetPlaybackRate(double aPlaybackRate)
|
|
{
|
|
ErrorResult rv;
|
|
SetPlaybackRate(aPlaybackRate, rv);
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::GetMozPreservesPitch(bool* aPreservesPitch)
|
|
{
|
|
*aPreservesPitch = MozPreservesPitch();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::SetMozPreservesPitch(bool aPreservesPitch)
|
|
{
|
|
mPreservesPitch = aPreservesPitch;
|
|
if (mDecoder) {
|
|
mDecoder->SetPreservesPitch(mPreservesPitch);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
ImageContainer* HTMLMediaElement::GetImageContainer()
|
|
{
|
|
VideoFrameContainer* container = GetVideoFrameContainer();
|
|
return container ? container->GetImageContainer() : nullptr;
|
|
}
|
|
|
|
nsresult HTMLMediaElement::UpdateChannelMuteState(float aVolume, bool aMuted)
|
|
{
|
|
if (mAudioChannelVolume != aVolume) {
|
|
mAudioChannelVolume = aVolume;
|
|
SetVolumeInternal();
|
|
}
|
|
|
|
// We have to mute this channel.
|
|
if (aMuted && !ComputedMuted()) {
|
|
SetMutedInternal(mMuted | MUTED_BY_AUDIO_CHANNEL);
|
|
if (UseAudioChannelAPI()) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("mozinterruptbegin"));
|
|
}
|
|
} else if (!aMuted && ComputedMuted()) {
|
|
SetMutedInternal(mMuted & ~MUTED_BY_AUDIO_CHANNEL);
|
|
if (UseAudioChannelAPI()) {
|
|
DispatchAsyncEvent(NS_LITERAL_STRING("mozinterruptend"));
|
|
}
|
|
}
|
|
|
|
if (UseAudioChannelAPI()) {
|
|
SuspendOrResumeElement(ComputedMuted(), false);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
HTMLMediaElement::MaybeCreateAudioChannelAgent()
|
|
{
|
|
if (!mAudioChannelAgent) {
|
|
nsresult rv;
|
|
mAudioChannelAgent = do_CreateInstance("@mozilla.org/audiochannelagent;1", &rv);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return false;
|
|
}
|
|
MOZ_ASSERT(mAudioChannelAgent);
|
|
mAudioChannelAgent->InitWithWeakCallback(OwnerDoc()->GetInnerWindow(),
|
|
static_cast<int32_t>(mAudioChannel),
|
|
this);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
HTMLMediaElement::IsPlayingThroughTheAudioChannel() const
|
|
{
|
|
// Are we paused or muted
|
|
if (mPaused || Muted()) {
|
|
return false;
|
|
}
|
|
|
|
// The volume should not be ~0
|
|
if (std::fabs(Volume()) <= 1e-7) {
|
|
return false;
|
|
}
|
|
|
|
// We should consider any bfcached page or inactive document as non-playing.
|
|
if (!IsActive()) {
|
|
return false;
|
|
}
|
|
|
|
// A loop always is playing
|
|
if (HasAttr(kNameSpaceID_None, nsGkAtoms::loop)) {
|
|
return true;
|
|
}
|
|
|
|
// If we are actually playing...
|
|
if (IsCurrentlyPlaying()) {
|
|
return true;
|
|
}
|
|
|
|
// If we are seeking, we consider it as playing
|
|
if (mPlayingThroughTheAudioChannelBeforeSeek) {
|
|
return true;
|
|
}
|
|
|
|
// If we are playing an external stream.
|
|
if (mSrcAttrStream) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::UpdateAudioChannelPlayingState()
|
|
{
|
|
bool playingThroughTheAudioChannel = IsPlayingThroughTheAudioChannel();
|
|
|
|
if (playingThroughTheAudioChannel != mPlayingThroughTheAudioChannel) {
|
|
mPlayingThroughTheAudioChannel = playingThroughTheAudioChannel;
|
|
|
|
// If we are not playing, we don't need to create a new audioChannelAgent.
|
|
if (!mAudioChannelAgent && !mPlayingThroughTheAudioChannel) {
|
|
return;
|
|
}
|
|
|
|
if (MaybeCreateAudioChannelAgent()) {
|
|
NotifyAudioChannelAgent(mPlayingThroughTheAudioChannel);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::NotifyAudioChannelAgent(bool aPlaying)
|
|
{
|
|
// Immediately check if this should go to the MSG instead of the normal
|
|
// media playback route.
|
|
WindowAudioCaptureChanged();
|
|
|
|
// This is needed to pass nsContentUtils::IsCallerChrome().
|
|
// AudioChannel API should not called from content but it can happen that
|
|
// this method has some content JS in its stack.
|
|
AutoNoJSAPI nojsapi;
|
|
|
|
if (aPlaying) {
|
|
// Don't notify playback if this element doesn't have any audio tracks.
|
|
uint32_t notify = HasAudio() ? nsIAudioChannelAgent::AUDIO_AGENT_NOTIFY :
|
|
nsIAudioChannelAgent::AUDIO_AGENT_DONT_NOTIFY;
|
|
|
|
float volume = 0.0;
|
|
bool muted = true;
|
|
mAudioChannelAgent->NotifyStartedPlaying(notify, &volume, &muted);
|
|
WindowVolumeChanged(volume, muted);
|
|
} else {
|
|
mAudioChannelAgent->NotifyStoppedPlaying();
|
|
mAudioChannelAgent = nullptr;
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::WindowVolumeChanged(float aVolume, bool aMuted)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
UpdateChannelMuteState(aVolume, aMuted);
|
|
|
|
if (UseAudioChannelAPI()) {
|
|
mPaused.SetCanPlay(!aMuted);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
#ifdef MOZ_EME
|
|
MediaKeys*
|
|
HTMLMediaElement::GetMediaKeys() const
|
|
{
|
|
return mMediaKeys;
|
|
}
|
|
|
|
bool
|
|
HTMLMediaElement::ContainsRestrictedContent()
|
|
{
|
|
return GetMediaKeys() != nullptr;
|
|
}
|
|
|
|
already_AddRefed<Promise>
|
|
HTMLMediaElement::SetMediaKeys(mozilla::dom::MediaKeys* aMediaKeys,
|
|
ErrorResult& aRv)
|
|
{
|
|
if (MozAudioCaptured()) {
|
|
aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<nsIGlobalObject> global =
|
|
do_QueryInterface(OwnerDoc()->GetInnerWindow());
|
|
if (!global) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return nullptr;
|
|
}
|
|
RefPtr<DetailedPromise> promise = DetailedPromise::Create(global, aRv,
|
|
NS_LITERAL_CSTRING("HTMLMediaElement.setMediaKeys"));
|
|
if (aRv.Failed()) {
|
|
return nullptr;
|
|
}
|
|
if (mMediaKeys == aMediaKeys) {
|
|
promise->MaybeResolve(JS::UndefinedHandleValue);
|
|
return promise.forget();
|
|
}
|
|
if (aMediaKeys && aMediaKeys->IsBoundToMediaElement()) {
|
|
promise->MaybeReject(NS_ERROR_DOM_QUOTA_EXCEEDED_ERR,
|
|
NS_LITERAL_CSTRING("MediaKeys object is already bound to another HTMLMediaElement"));
|
|
return promise.forget();
|
|
}
|
|
if (mMediaKeys) {
|
|
// Existing MediaKeys object. Shut it down.
|
|
mMediaKeys->Shutdown();
|
|
mMediaKeys = nullptr;
|
|
}
|
|
if (mDecoder &&
|
|
!mMediaSource &&
|
|
Preferences::GetBool("media.eme.mse-only", true)) {
|
|
ShutdownDecoder();
|
|
promise->MaybeReject(NS_ERROR_DOM_NOT_SUPPORTED_ERR,
|
|
NS_LITERAL_CSTRING("EME not supported on non-MSE streams"));
|
|
return promise.forget();
|
|
}
|
|
|
|
mMediaKeys = aMediaKeys;
|
|
if (mMediaKeys) {
|
|
if (NS_FAILED(mMediaKeys->Bind(this))) {
|
|
promise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR,
|
|
NS_LITERAL_CSTRING("Failed to bind MediaKeys object to HTMLMediaElement"));
|
|
mMediaKeys = nullptr;
|
|
return promise.forget();
|
|
}
|
|
if (mDecoder) {
|
|
mDecoder->SetCDMProxy(mMediaKeys->GetCDMProxy());
|
|
}
|
|
}
|
|
promise->MaybeResolve(JS::UndefinedHandleValue);
|
|
return promise.forget();
|
|
}
|
|
|
|
EventHandlerNonNull*
|
|
HTMLMediaElement::GetOnencrypted()
|
|
{
|
|
EventListenerManager *elm = GetExistingListenerManager();
|
|
return elm ? elm->GetEventHandler(nsGkAtoms::onencrypted, EmptyString())
|
|
: nullptr;
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::SetOnencrypted(EventHandlerNonNull* handler)
|
|
{
|
|
EventListenerManager *elm = GetOrCreateListenerManager();
|
|
if (elm) {
|
|
elm->SetEventHandler(nsGkAtoms::onencrypted, EmptyString(), handler);
|
|
}
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::DispatchEncrypted(const nsTArray<uint8_t>& aInitData,
|
|
const nsAString& aInitDataType)
|
|
{
|
|
if (mReadyState == nsIDOMHTMLMediaElement::HAVE_NOTHING) {
|
|
// Ready state not HAVE_METADATA (yet), don't dispatch encrypted now.
|
|
// Queueing for later dispatch in MetadataLoaded.
|
|
mPendingEncryptedInitData.AddInitData(aInitDataType, aInitData);
|
|
return;
|
|
}
|
|
|
|
RefPtr<MediaEncryptedEvent> event;
|
|
if (IsCORSSameOrigin()) {
|
|
event = MediaEncryptedEvent::Constructor(this, aInitDataType, aInitData);
|
|
} else {
|
|
event = MediaEncryptedEvent::Constructor(this);
|
|
}
|
|
|
|
RefPtr<AsyncEventDispatcher> asyncDispatcher =
|
|
new AsyncEventDispatcher(this, event);
|
|
asyncDispatcher->PostDOMEvent();
|
|
}
|
|
|
|
bool
|
|
HTMLMediaElement::IsEventAttributeName(nsIAtom* aName)
|
|
{
|
|
return aName == nsGkAtoms::onencrypted ||
|
|
nsGenericHTMLElement::IsEventAttributeName(aName);
|
|
}
|
|
|
|
already_AddRefed<nsIPrincipal>
|
|
HTMLMediaElement::GetTopLevelPrincipal()
|
|
{
|
|
RefPtr<nsIPrincipal> principal;
|
|
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(OwnerDoc()->GetParentObject());
|
|
if (!window) {
|
|
return nullptr;
|
|
}
|
|
window = window->GetOuterWindow();
|
|
nsCOMPtr<nsPIDOMWindow> top = window->GetTop();
|
|
if (!top) {
|
|
return nullptr;
|
|
}
|
|
nsIDocument* doc = top->GetExtantDoc();
|
|
if (!doc) {
|
|
return nullptr;
|
|
}
|
|
principal = doc->NodePrincipal();
|
|
return principal.forget();
|
|
}
|
|
#endif // MOZ_EME
|
|
|
|
NS_IMETHODIMP HTMLMediaElement::WindowAudioCaptureChanged()
|
|
{
|
|
MOZ_ASSERT(mAudioChannelAgent);
|
|
|
|
if (!OwnerDoc()->GetInnerWindow()) {
|
|
return NS_OK;
|
|
}
|
|
bool captured = OwnerDoc()->GetInnerWindow()->GetAudioCaptured();
|
|
|
|
if (captured != mAudioCapturedByWindow) {
|
|
if (captured) {
|
|
mAudioCapturedByWindow = true;
|
|
nsCOMPtr<nsPIDOMWindow> window =
|
|
do_QueryInterface(OwnerDoc()->GetParentObject());
|
|
uint64_t id = window->WindowID();
|
|
MediaStreamGraph* msg =
|
|
MediaStreamGraph::GetInstance(MediaStreamGraph::AUDIO_THREAD_DRIVER,
|
|
mAudioChannel);
|
|
|
|
if (GetSrcMediaStream()) {
|
|
mCaptureStreamPort = msg->ConnectToCaptureStream(id, GetSrcMediaStream());
|
|
} else {
|
|
RefPtr<DOMMediaStream> stream = CaptureStreamInternal(false, msg);
|
|
mCaptureStreamPort = msg->ConnectToCaptureStream(id, stream->GetPlaybackStream());
|
|
}
|
|
} else {
|
|
mAudioCapturedByWindow = false;
|
|
if (mDecoder) {
|
|
ProcessedMediaStream* ps =
|
|
mCaptureStreamPort->GetSource()->AsProcessedStream();
|
|
MOZ_ASSERT(ps);
|
|
|
|
for (uint32_t i = 0; i < mOutputStreams.Length(); i++) {
|
|
if (mOutputStreams[i].mStream->GetPlaybackStream() == ps) {
|
|
mOutputStreams.RemoveElementAt(i);
|
|
break;
|
|
}
|
|
}
|
|
|
|
mDecoder->RemoveOutputStream(ps);
|
|
}
|
|
mCaptureStreamPort->Destroy();
|
|
mCaptureStreamPort = nullptr;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
AudioTrackList*
|
|
HTMLMediaElement::AudioTracks()
|
|
{
|
|
if (!mAudioTrackList) {
|
|
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(OwnerDoc()->GetParentObject());
|
|
mAudioTrackList = new AudioTrackList(window, this);
|
|
}
|
|
return mAudioTrackList;
|
|
}
|
|
|
|
VideoTrackList*
|
|
HTMLMediaElement::VideoTracks()
|
|
{
|
|
if (!mVideoTrackList) {
|
|
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(OwnerDoc()->GetParentObject());
|
|
mVideoTrackList = new VideoTrackList(window, this);
|
|
}
|
|
return mVideoTrackList;
|
|
}
|
|
|
|
TextTrackList*
|
|
HTMLMediaElement::GetTextTracks()
|
|
{
|
|
return GetOrCreateTextTrackManager()->GetTextTracks();
|
|
}
|
|
|
|
already_AddRefed<TextTrack>
|
|
HTMLMediaElement::AddTextTrack(TextTrackKind aKind,
|
|
const nsAString& aLabel,
|
|
const nsAString& aLanguage)
|
|
{
|
|
return
|
|
GetOrCreateTextTrackManager()->AddTextTrack(aKind, aLabel, aLanguage,
|
|
TextTrackMode::Hidden,
|
|
TextTrackReadyState::Loaded,
|
|
TextTrackSource::AddTextTrack);
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::PopulatePendingTextTrackList()
|
|
{
|
|
if (mTextTrackManager) {
|
|
mTextTrackManager->PopulatePendingList();
|
|
}
|
|
}
|
|
|
|
TextTrackManager*
|
|
HTMLMediaElement::GetOrCreateTextTrackManager()
|
|
{
|
|
if (!mTextTrackManager) {
|
|
mTextTrackManager = new TextTrackManager(this);
|
|
mTextTrackManager->AddListeners();
|
|
}
|
|
return mTextTrackManager;
|
|
}
|
|
|
|
void
|
|
HTMLMediaElement::SetMozAudioChannelType(AudioChannel aValue, ErrorResult& aRv)
|
|
{
|
|
nsString channel;
|
|
channel.AssignASCII(AudioChannelValues::strings[uint32_t(aValue)].value,
|
|
AudioChannelValues::strings[uint32_t(aValue)].length);
|
|
SetHTMLAttr(nsGkAtoms::mozaudiochannel, channel, aRv);
|
|
}
|
|
|
|
MediaDecoderOwner::NextFrameStatus
|
|
HTMLMediaElement::NextFrameStatus()
|
|
{
|
|
if (mDecoder) {
|
|
return mDecoder->NextFrameStatus();
|
|
} else if (mMediaStreamListener) {
|
|
return mMediaStreamListener->NextFrameStatus();
|
|
}
|
|
return NEXT_FRAME_UNINITIALIZED;
|
|
}
|
|
|
|
float
|
|
HTMLMediaElement::ComputedVolume() const
|
|
{
|
|
return mMuted ? 0.0f : float(mVolume * mAudioChannelVolume);
|
|
}
|
|
|
|
bool
|
|
HTMLMediaElement::ComputedMuted() const
|
|
{
|
|
return (mMuted & MUTED_BY_AUDIO_CHANNEL);
|
|
}
|
|
|
|
bool
|
|
HTMLMediaElement::IsCurrentlyPlaying() const
|
|
{
|
|
// We have playable data, but we still need to check whether data is "real"
|
|
// current data.
|
|
if (mReadyState >= nsIDOMHTMLMediaElement::HAVE_CURRENT_DATA &&
|
|
!IsPlaybackEnded()) {
|
|
|
|
// Restart the video after ended, it needs to seek to the new position.
|
|
// In b2g, the cache is not large enough to store whole video data, so we
|
|
// need to download data again. In this case, although the ready state is
|
|
// "HAVE_CURRENT_DATA", it is the previous old data. Actually we are not
|
|
// yet have enough currently data.
|
|
if (mDecoder && mDecoder->IsSeeking() && !mPlayingBeforeSeek) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|