/*

* Copyright (C) 2023 Igalia S.L

*

* This library is free software; you can redistribute it and/or

* modify it under the terms of the GNU Library General Public

* License as published by the Free Software Foundation; either

* version 2 of the License, or (at your option) any later version.

*

* This library is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

* Library General Public License for more details.

*

* You should have received a copy of the GNU Library General Public License

* aint with this library; see the file COPYING.LIB. If not, write to

* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

* Boston, MA 02110-1301, USA.

*/

#pragma once

#if ENABLE(WEB_CODECS)

#include <algorithm>

#include <optional>

#include <wtf/Vector.h>

namespace WebCore {

enum class OpusBitstreamFormat : uint8_t {

Opus,

Ogg

};

// https://www.w3.org/TR/webcodecs-opus-codec-registration/#opus-encoder-config

struct OpusEncoderConfig {

bool isValid()

{

float frameDurationMs = frameDuration / 1000.0;

if (std::ranges::none_of(std::initializer_list<float> { 2.5, 5, 10, 20, 40, 60, 120 }, [frameDurationMs](auto value) {

return WTF::areEssentiallyEqual(value, frameDurationMs);

})) {

return false;

}

if (complexity > 10)

return false;

if (packetlossperc > 100)

return false;

return true;

}

using BitstreamFormat = OpusBitstreamFormat;

OpusBitstreamFormat format { OpusBitstreamFormat::Opus };

uint64_t frameDuration { 20000 };

size_t complexity { 9 };

size_t packetlossperc { 0 };

bool useinbandfec { false };

bool usedtx { false };

};

}

#endif // ENABLE(WEB_CODECS)