WebKit/Source/WebCore/Modules/webcodecs/WebCodecsAudioData.cpp at main · WebKit/WebKit · GitHub

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* 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.

#include "config.h"

#include "WebCodecsAudioData.h"

#if ENABLE(WEB_CODECS)

#include "ContextDestructionObserverInlines.h"

#include "ExceptionOr.h"

#include "JSDOMPromiseDeferred.h"

#include "PlatformRawAudioData.h"

#include "WebCodecsAudioDataAlgorithms.h"

namespace WebCore {

// https://www.w3.org/TR/webcodecs/#dom-audiodata-audiodata

ExceptionOr<Ref<WebCodecsAudioData>> WebCodecsAudioData::create(ScriptExecutionContext& context, Init&& init)

{

if (!isValidAudioDataInit(init))

return Exception { ExceptionCode::TypeError, "Invalid init data"_s };

auto rawData = init.data.span();

auto data = PlatformRawAudioData::create(WTF::move(rawData), init.format, init.sampleRate, init.timestamp, init.numberOfFrames, init.numberOfChannels);

if (!data)

return Exception { ExceptionCode::NotSupportedError, "AudioData creation failed"_s };

return adoptRef(*new WebCodecsAudioData(context, WebCodecsAudioInternalData { WTF::move(data) }));

}

Ref<WebCodecsAudioData> WebCodecsAudioData::create(ScriptExecutionContext& context, Ref<PlatformRawAudioData>&& data)

{

return adoptRef(*new WebCodecsAudioData(context, WebCodecsAudioInternalData { WTF::move(data) }));

}

WebCodecsAudioData::WebCodecsAudioData(ScriptExecutionContext& context)

: ContextDestructionObserver(&context)

{

}

WebCodecsAudioData::WebCodecsAudioData(ScriptExecutionContext& context, WebCodecsAudioInternalData&& data)

: ContextDestructionObserver(&context)

, m_data(WTF::move(data))

, m_memoryCost(m_data.memoryCost())

{

}

WebCodecsAudioData::~WebCodecsAudioData() = default;

std::optional<AudioSampleFormat> WebCodecsAudioData::format() const

{

return m_data.audioData ? std::make_optional(protect(m_data.audioData)->format()) : std::nullopt;

}

float WebCodecsAudioData::sampleRate() const

{

return m_data.audioData ? protect(m_data.audioData)->sampleRate() : 0;

}

size_t WebCodecsAudioData::numberOfFrames() const

{

return m_data.audioData ? protect(m_data.audioData)->numberOfFrames() : 0;

}

size_t WebCodecsAudioData::numberOfChannels() const

{

return m_data.audioData ? protect(m_data.audioData)->numberOfChannels() : 0;

}

std::optional<uint64_t> WebCodecsAudioData::duration()

{

return m_data.audioData ? protect(m_data.audioData)->duration() : std::nullopt;

}

int64_t WebCodecsAudioData::timestamp() const

{

return m_data.audioData ? protect(m_data.audioData)->timestamp() : 0;

}

// https://www.w3.org/TR/webcodecs/#dom-audiodata-allocationsize

ExceptionOr<size_t> WebCodecsAudioData::allocationSize(const CopyToOptions& options)

{

if (isDetached())

return Exception { ExceptionCode::InvalidStateError, "AudioData is detached"_s };

auto copyElementCount = computeCopyElementCount(*this, options);

if (copyElementCount.hasException())

return copyElementCount.releaseException();

auto destFormat = options.format.value_or(*format());

auto bytesPerSample = computeBytesPerSample(destFormat);

return copyElementCount.releaseReturnValue() * bytesPerSample;

}

// https://www.w3.org/TR/webcodecs/#dom-audiodata-copyto

ExceptionOr<void> WebCodecsAudioData::copyTo(BufferSource&& source, CopyToOptions&& options)

{

if (isDetached())

return Exception { ExceptionCode::InvalidStateError, "AudioData is detached"_s };

auto copyElementCount = computeCopyElementCount(*this, options);

if (copyElementCount.hasException())

return copyElementCount.releaseException();

auto destFormat = options.format.value_or(*format());

auto bytesPerSample = computeBytesPerSample(destFormat);

auto maxCopyElementCount = copyElementCount.releaseReturnValue();

unsigned long allocationSize;

if (!WTF::safeMultiply(maxCopyElementCount, bytesPerSample, allocationSize))

return Exception { ExceptionCode::RangeError, "Calculated destination buffer size overflows"_s };

if (allocationSize > source.byteLength())

return Exception { ExceptionCode::RangeError, "Buffer is too small"_s };

protect(m_data.audioData)->copyTo(source.mutableSpan(), destFormat, options.planeIndex, options.frameOffset, options.frameCount, maxCopyElementCount);

return { };

}

// https://www.w3.org/TR/webcodecs/#dom-audiodata-clone

ExceptionOr<Ref<WebCodecsAudioData>> WebCodecsAudioData::clone(ScriptExecutionContext& context)

{

if (isDetached())

return Exception { ExceptionCode::InvalidStateError, "AudioData is detached"_s };

return adoptRef(*new WebCodecsAudioData(context, WebCodecsAudioInternalData { m_data }));

}

// https://www.w3.org/TR/webcodecs/#dom-audiodata-close

void WebCodecsAudioData::close()

{

m_memoryCost.store(0, std::memory_order_relaxed);

m_data.audioData = nullptr;

m_isDetached = true;

}

} // namespace WebCore

#endif // ENABLE(WEB_CODECS)

WebKit/Source/WebCore/Modules/webcodecs/WebCodecsAudioData.cpp at main · WebKit/WebKit · GitHub

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