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/*
* Copyright (C) 2025 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 <WebCore/HdrMetadataType.h>
#include <WebCore/MediaSample.h>
#include <WebCore/SharedBuffer.h>
#include <WebCore/TrackInfo.h>
#include <wtf/MediaTime.h>
namespace IPC {
template<typename> struct ArgumentCoder;
}
namespace WebCore {
class MediaSamplesBlock {
WTF_DEPRECATED_MAKE_FAST_ALLOCATED(MediaSamplesBlock);
public:
struct MediaSampleItem {
using MediaSampleDataType = RefPtr<FragmentedSharedBuffer>;
MediaTime presentationTime;
MediaTime decodeTime { MediaTime::indefiniteTime() };
MediaTime duration { MediaTime::zeroTime() };
std::pair<MediaTime, MediaTime> trimInterval { MediaTime::zeroTime(), MediaTime::zeroTime() };
MediaSampleDataType data;
RefPtr<SharedBuffer> hdrMetadata { nullptr };
std::optional<HdrMetadataType> hdrMetadataType { std::nullopt };
uint32_t flags { };
bool isSync() const { return flags & MediaSample::IsSync; }
#if ENABLE(ENCRYPTED_MEDIA)
int32_t bytesOfClearDataCount { 0 };
RefPtr<SharedBuffer> cryptorIV { };
RefPtr<SharedBuffer> cryptorSubsampleAuxiliaryData { };
#endif
};
using MediaSampleDataType = MediaSampleItem::MediaSampleDataType;
using SamplesVector = Vector<MediaSampleItem>;
MediaSamplesBlock() = default;
MediaSamplesBlock(const TrackInfo* info, SamplesVector&& items)
: m_info(info)
, m_samples(WTFMove(items))
{
}
void setInfo(RefPtr<const TrackInfo>&& info) { m_info = WTFMove(info); }
const TrackInfo* info() const { return m_info.get(); }
RefPtr<const TrackInfo> protectedInfo() const { return m_info; }
MediaTime presentationTime() const { return isEmpty() ? MediaTime::invalidTime() : first().presentationTime; }
MediaTime duration() const
{
MediaTime duration = MediaTime::zeroTime();
for (auto& sample : *this)
duration += sample.duration;
return duration;
}
MediaTime presentationEndTime() const { return presentationTime() + duration(); }
bool isSync() const { return size() ? (first().flags & MediaSample::IsSync) : false; }
TrackID trackID() const { return m_info ? m_info->trackID : -1; }
bool isVideo() const { return m_info && m_info->isVideo(); }
bool isAudio() const { return m_info && m_info->isAudio(); }
TrackInfo::TrackType type() const { return m_info ? m_info->type() : TrackInfo::TrackType::Unknown; }
void append(MediaSampleItem&& item) { m_samples.append(WTFMove(item)); }
void append(MediaSamplesBlock&& block) { append(std::exchange(block.m_samples, { })); }
void append(SamplesVector&& samples) { m_samples.appendVector(WTFMove(samples)); }
size_t size() const { return m_samples.size(); };
bool isEmpty() const { return m_samples.isEmpty(); }
void clear() { m_samples.clear(); }
SamplesVector takeSamples() { return std::exchange(m_samples, { }); }
// Indicate that this MediaSampleBlock follows a discontinuity from the previous block.
std::optional<bool> discontinuity() const { return m_discontinuity; }
void setDiscontinuity(bool discontinuity) { m_discontinuity = discontinuity; }
const MediaSampleItem& operator[](size_t index) const LIFETIME_BOUND { return m_samples[index]; }
const MediaSampleItem& first() const LIFETIME_BOUND { return m_samples.first(); }
const MediaSampleItem& last() const LIFETIME_BOUND { return m_samples.last(); }
SamplesVector::const_iterator begin() const LIFETIME_BOUND { return m_samples.begin(); }
SamplesVector::const_iterator end() const LIFETIME_BOUND { return m_samples.end(); }
WEBCORE_EXPORT RefPtr<MediaSample> toMediaSample() const;
WEBCORE_EXPORT static UniqueRef<MediaSamplesBlock> fromMediaSample(const MediaSample&, const TrackInfo* = nullptr);
private:
// Used by IPC generator
friend struct IPC::ArgumentCoder<MediaSamplesBlock>;
MediaSamplesBlock(RefPtr<const TrackInfo>&& info, SamplesVector&& items, std::optional<bool> discontinuity)
: m_info(WTFMove(info))
, m_samples(WTFMove(items))
, m_discontinuity(discontinuity)
{
}
RefPtr<const TrackInfo> m_info;
SamplesVector m_samples;
std::optional<bool> m_discontinuity;
};
} // namespace WebCore
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