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/*
* Copyright (C) 2020 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 USE(GSTREAMER) && ENABLE(VIDEO)
#include "GStreamerCommon.h"
#include "GStreamerElementHarness.h"
#include "ImageDecoder.h"
#include "MIMETypeRegistry.h"
#include "SampleMap.h"
#include "SharedBuffer.h"
#include <wtf/Forward.h>
#include <wtf/Lock.h>
namespace WebCore {
class ContentType;
class ImageDecoderGStreamerSample;
class ImageDecoderGStreamer final : public ImageDecoder {
WTF_MAKE_FAST_ALLOCATED;
WTF_MAKE_NONCOPYABLE(ImageDecoderGStreamer);
public:
static RefPtr<ImageDecoderGStreamer> create(FragmentedSharedBuffer&, const String& mimeType, AlphaOption, GammaAndColorProfileOption);
ImageDecoderGStreamer(FragmentedSharedBuffer&, const String& mimeType, AlphaOption, GammaAndColorProfileOption);
virtual ~ImageDecoderGStreamer() = default;
static bool supportsMediaType(MediaType type) { return type == MediaType::Video; }
static bool supportsContainerType(const String&);
size_t bytesDecodedToDetermineProperties() const override { return 0; }
static bool canDecodeType(const String& mimeType);
void setEncodedDataStatusChangeCallback(Function<void(EncodedDataStatus)>&& callback) final { m_encodedDataStatusChangedCallback = WTFMove(callback); }
EncodedDataStatus encodedDataStatus() const final;
IntSize size() const final;
size_t frameCount() const final { return m_sampleData.size(); }
RepetitionCount repetitionCount() const final;
String uti() const final;
String filenameExtension() const final { return MIMETypeRegistry::preferredExtensionForMIMEType(m_mimeType); }
std::optional<IntPoint> hotSpot() const final { return std::nullopt; }
IntSize frameSizeAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const final { return size(); }
bool frameIsCompleteAtIndex(size_t index) const final { return sampleAtIndex(index); }
ImageDecoder::FrameMetadata frameMetadataAtIndex(size_t) const final;
Seconds frameDurationAtIndex(size_t) const final;
bool frameHasAlphaAtIndex(size_t) const final;
bool frameAllowSubsamplingAtIndex(size_t index) const final { return index <= m_sampleData.size(); }
unsigned frameBytesAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const final;
PlatformImagePtr createFrameImageAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default, const DecodingOptions& = DecodingOptions(DecodingMode::Synchronous)) final;
void setExpectedContentSize(long long) final { }
void setData(const FragmentedSharedBuffer&, bool allDataReceived) final;
bool isAllDataReceived() const final { return m_eos; }
void clearFrameBufferCache(size_t) final;
private:
void pushEncodedData(const FragmentedSharedBuffer&);
void storeDecodedSample(GRefPtr<GstSample>&&);
const ImageDecoderGStreamerSample* sampleAtIndex(size_t) const;
Function<void(EncodedDataStatus)> m_encodedDataStatusChangedCallback;
SampleMap m_sampleData;
DecodeOrderSampleMap::iterator m_cursor;
Lock m_sampleGeneratorLock;
bool m_eos { false };
bool m_error { false };
std::optional<IntSize> m_size;
String m_mimeType;
RefPtr<GStreamerElementHarness> m_parserHarness;
RefPtr<GStreamerElementHarness> m_decoderHarness;
};
} // namespace WebCore
#endif // USE(GSTREAMER) && ENABLE(VIDEO)
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