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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at
* The origin of this IDL file is
* © Copyright 2004-2011 Apple Computer, Inc., Mozilla Foundation, and
* Opera Software ASA. You are granted a license to use, reproduce
* and create derivative works of this document.
interface HTMLMediaElement : HTMLElement {
// error state
readonly attribute MediaError? error;
// network state
[CEReactions, SetterNeedsSubjectPrincipal=NonSystem, SetterThrows]
attribute DOMString src;
readonly attribute DOMString currentSrc;
[CEReactions, SetterThrows]
attribute DOMString? crossOrigin;
const unsigned short NETWORK_EMPTY = 0;
const unsigned short NETWORK_IDLE = 1;
const unsigned short NETWORK_LOADING = 2;
const unsigned short NETWORK_NO_SOURCE = 3;
readonly attribute unsigned short networkState;
[CEReactions, SetterThrows]
attribute DOMString preload;
readonly attribute TimeRanges buffered;
undefined load();
DOMString canPlayType(DOMString type);
// ready state
const unsigned short HAVE_NOTHING = 0;
const unsigned short HAVE_METADATA = 1;
const unsigned short HAVE_CURRENT_DATA = 2;
const unsigned short HAVE_FUTURE_DATA = 3;
const unsigned short HAVE_ENOUGH_DATA = 4;
readonly attribute unsigned short readyState;
readonly attribute boolean seeking;
// playback state
attribute double currentTime;
undefined fastSeek(double time);
readonly attribute unrestricted double duration;
readonly attribute boolean isEncrypted;
// TODO: Bug 847376 - readonly attribute any startDate;
readonly attribute boolean paused;
attribute double defaultPlaybackRate;
attribute double playbackRate;
readonly attribute TimeRanges played;
readonly attribute TimeRanges seekable;
readonly attribute boolean ended;
[CEReactions, SetterThrows]
attribute boolean autoplay;
[CEReactions, SetterThrows]
attribute boolean loop;
Promise<undefined> play();
undefined pause();
// TODO: Bug 847377 - mediaGroup and MediaController
// media controller
// attribute DOMString mediaGroup;
// attribute MediaController? controller;
// controls
[CEReactions, SetterThrows]
attribute boolean controls;
attribute double volume;
attribute boolean muted;
[CEReactions, SetterThrows]
attribute boolean defaultMuted;
// TODO: Bug 847379
// tracks
readonly attribute AudioTrackList audioTracks;
readonly attribute VideoTrackList videoTracks;
readonly attribute TextTrackList? textTracks;
TextTrack addTextTrack(TextTrackKind kind,
optional DOMString label = "",
optional DOMString language = "");
// Mozilla extensions:
partial interface HTMLMediaElement {
readonly attribute MediaSource? mozMediaSourceObject;
[Func="HasDebuggerOrTabsPrivilege", NewObject]
Promise<HTMLMediaElementDebugInfo> mozRequestDebugInfo();
[Func="HasDebuggerOrTabsPrivilege", NewObject]
static undefined mozEnableDebugLog();
[Func="HasDebuggerOrTabsPrivilege", NewObject]
Promise<DOMString> mozRequestDebugLog();
attribute MediaStream? srcObject;
attribute boolean preservesPitch;
// NB: for internal use with the video controls:
[Func="IsChromeOrUAWidget"] attribute boolean mozAllowCasting;
[Func="IsChromeOrUAWidget"] attribute boolean mozIsCasting;
// Mozilla extension: stream capture
MediaStream mozCaptureStream();
MediaStream mozCaptureStreamUntilEnded();
readonly attribute boolean mozAudioCaptured;
// Mozilla extension: return embedded metadata from the stream as a
// JSObject with key:value pairs for each tag. This can be used by
// player interfaces to display the song title, artist, etc.
object? mozGetMetadata();
// Mozilla extension: provides access to the fragment end time if
// the media element has a fragment URI for the currentSrc, otherwise
// it is equal to the media duration.
readonly attribute double mozFragmentEnd;
// Encrypted Media Extensions
partial interface HTMLMediaElement {
readonly attribute MediaKeys? mediaKeys;
Promise<undefined> setMediaKeys(MediaKeys? mediaKeys);
attribute EventHandler onencrypted;
attribute EventHandler onwaitingforkey;
* These attributes are general testing attributes and they should only be used
* in tests.
partial interface HTMLMediaElement {
readonly attribute double computedVolume;
readonly attribute boolean computedMuted;
// Return true if the media is suspended because its document is inactive or
// the docshell is inactive and explicitly being set to prohibit all media
// from playing.
readonly attribute boolean isSuspendedByInactiveDocOrDocShell;
* HTMLMediaElement::seekToNextFrame() is a Mozilla experimental feature.
* The SeekToNextFrame() method provides a way to access a video element's video
* frames one by one without going through the realtime playback. So, it lets
* authors use "frame" as unit to access the video element's underlying data,
* instead of "time".
* The SeekToNextFrame() is a kind of seek operation, so normally, once it is
* invoked, a "seeking" event is dispatched. However, if the media source has no
* video data or is not seekable, the operation is ignored without filing the
* "seeking" event.
* Once the SeekToNextFrame() is done, a "seeked" event should always be filed
* and a "ended" event might also be filed depends on where the media element's
* position before seeking was. There are two cases:
* Assume the media source has n+1 video frames where n is a non-negative
* integers and the frame sequence is indexed from zero.
* (1) If the currentTime is at anywhere smaller than the n-th frame's beginning
* time, say the currentTime is now pointing to a position which is smaller
* than the x-th frame's beginning time and larger or equal to the (x-1)-th
* frame's beginning time, where x belongs to [1, n], then the
* SeekToNextFrame() operation seeks the media to the x-th frame, sets the
* media's currentTime to the x-th frame's beginning time and dispatches a
* "seeked" event.
* (2) Otherwise, if the currentTime is larger or equal to the n-th frame's
* beginning time, then the SeekToNextFrame() operation sets the media's
* currentTime to the duration of the media source and dispatches a "seeked"
* event and an "ended" event.
partial interface HTMLMediaElement {
[NewObject, Pref="media.seekToNextFrame.enabled"]
Promise<undefined> seekToNextFrame();
/* Internal testing only API */
partial interface HTMLMediaElement {
// These APIs are used to simulate visibility changes to help debug and write
// tests about suspend-video-decoding.
// - SetVisible() is for simulating visibility changes.
// - HasSuspendTaint() is for querying that the element's decoder cannot suspend
// video decoding because it has been tainted by an operation, such as
// drawImage().
// - isInViewPort is a boolean value which indicate whether media element is
// in view port.
// - isVideoDecodingSuspended() is used to know whether video decoding has
// suspended.
undefined setVisible(boolean aVisible);
boolean hasSuspendTaint();
readonly attribute boolean isInViewPort;
readonly attribute boolean isVideoDecodingSuspended;
readonly attribute double totalVideoPlayTime;
readonly attribute double totalVideoHDRPlayTime;
readonly attribute double visiblePlayTime;
readonly attribute double invisiblePlayTime;
readonly attribute double videoDecodeSuspendedTime;
readonly attribute double totalAudioPlayTime;
readonly attribute double audiblePlayTime;
readonly attribute double inaudiblePlayTime;
readonly attribute double mutedPlayTime;
// These APIs are used for decoder doctor tests.
undefined setFormatDiagnosticsReportForMimeType(DOMString mimeType, DecoderDoctorReportType error);
[Throws, ChromeOnly]
undefined setDecodeError(DOMString error);
undefined setAudioSinkFailedStartup();
/* Audio Output Devices API
partial interface HTMLMediaElement {
[SecureContext, Pref="media.setsinkid.enabled"]
readonly attribute DOMString sinkId;
[NewObject, SecureContext, Pref="media.setsinkid.enabled"]
Promise<undefined> setSinkId(DOMString sinkId);
* API that exposes whether a call to would be
* blocked by autoplay policies; whether the promise returned by play()
* would be rejected with NotAllowedError.
partial interface HTMLMediaElement {
readonly attribute boolean allowedToPlay;