tor-browser

The Tor Browser
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ImageDecoder.webidl (2369B)

      1 /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
      4 * You can obtain one at http://mozilla.org/MPL/2.0/.
      5 *
      6 * The origin of this IDL file is
      7 * https://w3c.github.io/webcodecs/#image-decoding
      8 */
      9 
     10 typedef (AllowSharedBufferSource or ReadableStream) ImageBufferSource;
     11 dictionary ImageDecoderInit {
     12  required DOMString type;
     13  required ImageBufferSource data;
     14  ColorSpaceConversion colorSpaceConversion = "default";
     15  [EnforceRange] unsigned long desiredWidth;
     16  [EnforceRange] unsigned long desiredHeight;
     17  boolean preferAnimation;
     18  sequence<ArrayBuffer> transfer = [];
     19 };
     20 
     21 dictionary ImageDecodeOptions {
     22  [EnforceRange] unsigned long frameIndex = 0;
     23  boolean completeFramesOnly = true;
     24 };
     25 
     26 dictionary ImageDecodeResult {
     27  required VideoFrame image;
     28  required boolean complete;
     29 };
     30 
     31 dictionary ImageSize {
     32  required unsigned long width;
     33  required unsigned long height;
     34 };
     35 
     36 [Exposed=(Window,DedicatedWorker),
     37 SecureContext,
     38 Func="nsRFPService::ExposeWebCodecsAPIImageDecoder"]
     39 interface ImageTrack {
     40  readonly attribute boolean animated;
     41  readonly attribute unsigned long frameCount;
     42  readonly attribute unrestricted float repetitionCount;
     43  attribute boolean selected;
     44 
     45  // Mozilla-internal-only addition
     46  [ChromeOnly]
     47  sequence<ImageSize> getSizes();
     48 };
     49 
     50 [Exposed=(Window,DedicatedWorker),
     51 SecureContext,
     52 Func="nsRFPService::ExposeWebCodecsAPIImageDecoder"]
     53 interface ImageTrackList {
     54  getter ImageTrack (unsigned long index);
     55 
     56  readonly attribute Promise<undefined> ready;
     57  readonly attribute unsigned long length;
     58  readonly attribute long selectedIndex;
     59  readonly attribute ImageTrack? selectedTrack;
     60 };
     61 
     62 [Exposed=(Window,DedicatedWorker),
     63 SecureContext,
     64 Func="nsRFPService::ExposeWebCodecsAPIImageDecoder"]
     65 interface ImageDecoder {
     66  [Throws]
     67  constructor(ImageDecoderInit init);
     68 
     69  readonly attribute DOMString type;
     70  readonly attribute boolean complete;
     71  readonly attribute Promise<undefined> completed;
     72  readonly attribute ImageTrackList tracks;
     73 
     74  [Throws]
     75  Promise<ImageDecodeResult> decode(optional ImageDecodeOptions options = {});
     76  undefined reset();
     77  undefined close();
     78 
     79  [Throws]
     80  static Promise<boolean> isTypeSupported(DOMString type);
     81 };