1 files changed, 87 insertions, 0 deletions
diff --git a/dom/webidl/MediaCapabilities.webidl b/dom/webidl/MediaCapabilities.webidl
new file mode 100644
index 0000000000..514a86285f
--- /dev/null
+++ b/dom/webidl/MediaCapabilities.webidl
@@ -0,0 +1,87 @@
+/* -*- 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 http://mozilla.org/MPL/2.0/.
+ *
+ * The origin of this IDL file is
+ * https://w3c.github.io/media-capabilities/
+ *
+ * Copyright © 2018 the Contributors to the Media Capabilities Specification
+ */
+
+dictionary MediaConfiguration {
+  VideoConfiguration video;
+  AudioConfiguration audio;
+};
+
+dictionary MediaDecodingConfiguration : MediaConfiguration {
+  required MediaDecodingType type;
+};
+
+dictionary MediaEncodingConfiguration : MediaConfiguration {
+  required MediaEncodingType type;
+};
+
+enum MediaDecodingType {
+  "file",
+  "media-source",
+};
+
+enum MediaEncodingType {
+  "record",
+  "transmission"
+};
+
+dictionary VideoConfiguration {
+  required DOMString contentType;
+  required unsigned long width;
+  required unsigned long height;
+  required unsigned long long bitrate;
+  required double framerate;
+  boolean hasAlphaChannel;
+  HdrMetadataType hdrMetadataType;
+  ColorGamut colorGamut;
+  TransferFunction transferFunction;
+  DOMString scalabilityMode;
+};
+
+enum HdrMetadataType {
+  "smpteSt2086",
+  "smpteSt2094-10",
+  "smpteSt2094-40"
+};
+
+enum ColorGamut {
+  "srgb",
+  "p3",
+  "rec2020"
+};
+
+enum TransferFunction {
+  "srgb",
+  "pq",
+  "hlg"
+};
+
+dictionary AudioConfiguration {
+  required DOMString contentType;
+  DOMString channels;
+  unsigned long long bitrate;
+  unsigned long samplerate;
+};
+
+[Exposed=(Window, Worker), Func="mozilla::dom::MediaCapabilities::Enabled",
+ HeaderFile="mozilla/dom/MediaCapabilities.h"]
+interface MediaCapabilitiesInfo {
+  readonly attribute boolean supported;
+  readonly attribute boolean smooth;
+  readonly attribute boolean powerEfficient;
+};
+
+[Exposed=(Window, Worker), Func="mozilla::dom::MediaCapabilities::Enabled"]
+interface MediaCapabilities {
+  [NewObject]
+  Promise<MediaCapabilitiesInfo> decodingInfo(MediaDecodingConfiguration configuration);
+  [NewObject]
+  Promise<MediaCapabilitiesInfo> encodingInfo(MediaEncodingConfiguration configuration);
+};