/*
 * Copyright (C) 2020 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

enum RTCEncodedVideoFrameType { "empty", "key", "delta" };

[
    Conditional=WEB_RTC,
    JSGenerateToJSObject,
]
dictionary RTCEncodedVideoFrameMetadata {
    long long frameId;
    sequence<long long> dependencies;
    unsigned short width;
    unsigned short height;
    long spatialIndex;
    long temporalIndex;
    unsigned long synchronizationSource;
    // FIXME: http://webkit.org/b/224443
    // sequence<unsigned long> contributingSources;
};

[
    Conditional=WEB_RTC,
    EnabledBySetting=WebRTCEncodedTransformEnabled,
    Exposed=DedicatedWorker,
] interface RTCEncodedVideoFrame {
    readonly attribute RTCEncodedVideoFrameType type;
    readonly attribute unsigned long long timestamp;
    attribute ArrayBuffer data;
    RTCEncodedVideoFrameMetadata getMetadata();
};