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/*
* Copyright (C) 2022 Apple Inc. All rights reserved.
* Copyright (C) 2023 Igalia S.L
*
* 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
#if ENABLE(WEB_CODECS)
#include <span>
#include <wtf/CompletionHandler.h>
#include <wtf/NativePromise.h>
namespace WebCore {
class PlatformRawAudioData;
class AudioDecoder : public ThreadSafeRefCounted<AudioDecoder> {
public:
WEBCORE_EXPORT AudioDecoder();
WEBCORE_EXPORT virtual ~AudioDecoder();
static bool isCodecSupported(const StringView&);
struct Config {
Vector<uint8_t> description;
uint64_t sampleRate { 0 };
uint64_t numberOfChannels { 0 };
};
struct EncodedData {
std::span<const uint8_t> data;
bool isKeyFrame { false };
int64_t timestamp { 0 };
std::optional<uint64_t> duration;
};
struct DecodedData {
Ref<PlatformRawAudioData> data;
};
using OutputCallback = Function<void(Expected<DecodedData, String>&&)>;
using CreateResult = Expected<Ref<AudioDecoder>, String>;
using CreatePromise = NativePromise<Ref<AudioDecoder>, String>;
using CreateCallback = Function<void(CreateResult&&)>;
using CreatorFunction = void(*)(const String&, const Config&, CreateCallback&&, OutputCallback&&);
WEBCORE_EXPORT static void setCreatorCallback(CreatorFunction&&);
static Ref<CreatePromise> create(const String&, const Config&, OutputCallback&&);
using DecodePromise = NativePromise<void, String>;
virtual Ref<DecodePromise> decode(EncodedData&&) = 0;
virtual Ref<GenericPromise> flush() = 0;
virtual void reset() = 0;
virtual void close() = 0;
};
}
#endif // ENABLE(WEB_CODECS)
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