/* * Copyright (C) 2017 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. */ #pragma once #include <wtf/Optional.h> #include <wtf/text/WTFString.h> namespace WebCore { struct AudioConfiguration { String contentType; String channels; Optional<uint64_t> bitrate; Optional<uint32_t> samplerate; Optional<bool> spatialRendering; template<class Encoder> void encode(Encoder&) const; template<class Decoder> static Optional<AudioConfiguration> decode(Decoder&); }; template<class Encoder> void AudioConfiguration::encode(Encoder& encoder) const { encoder << contentType; encoder << channels; encoder << bitrate; encoder << samplerate; encoder << spatialRendering; } template<class Decoder> Optional<AudioConfiguration> AudioConfiguration::decode(Decoder& decoder) { Optional<String> contentType; decoder >> contentType; if (!contentType) return WTF::nullopt; Optional<String> channels; decoder >> channels; if (!channels) return WTF::nullopt; Optional<Optional<uint64_t>> bitrate; decoder >> bitrate; if (!bitrate) return WTF::nullopt; Optional<Optional<uint32_t>> sampleRate; decoder >> sampleRate; if (!sampleRate) return WTF::nullopt; Optional<Optional<bool>> spatialRendering; decoder >> spatialRendering; if (!spatialRendering) return WTF::nullopt; return {{ *contentType, *channels, *bitrate, *sampleRate, *spatialRendering }}; } } // namespace WebCore