| /* |
| * Copyright (C) 2017 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 |
| |
| #if HAVE(AVASSETREADER) |
| |
| #include "ImageDecoder.h" |
| #include "SampleMap.h" |
| #include <wtf/Lock.h> |
| #include <wtf/Vector.h> |
| #include <wtf/text/WTFString.h> |
| |
| OBJC_CLASS AVAssetTrack; |
| OBJC_CLASS AVAssetReader; |
| OBJC_CLASS AVURLAsset; |
| OBJC_CLASS WebCoreSharedBufferResourceLoaderDelegate; |
| typedef struct opaqueCMSampleBuffer* CMSampleBufferRef; |
| |
| namespace WTF { |
| class MediaTime; |
| } |
| |
| namespace WebCore { |
| |
| class ContentType; |
| class ImageDecoderAVFObjCSample; |
| class ImageRotationSessionVT; |
| class PixelBufferConformerCV; |
| class WebCoreDecompressionSession; |
| |
| class ImageDecoderAVFObjC : public ImageDecoder { |
| public: |
| static RefPtr<ImageDecoderAVFObjC> create(SharedBuffer&, const String& mimeType, AlphaOption, GammaAndColorProfileOption); |
| virtual ~ImageDecoderAVFObjC(); |
| |
| static bool supportsMediaType(MediaType); |
| static bool supportsContentType(const ContentType&); |
| |
| size_t bytesDecodedToDetermineProperties() const override { return 0; } |
| static bool canDecodeType(const String& mimeType); |
| |
| const String& mimeType() const { return m_mimeType; } |
| |
| void setEncodedDataStatusChangeCallback(WTF::Function<void(EncodedDataStatus)>&&) final; |
| EncodedDataStatus encodedDataStatus() const final; |
| IntSize size() const final; |
| size_t frameCount() const final; |
| RepetitionCount repetitionCount() const final; |
| String uti() const final; |
| String filenameExtension() const final; |
| Optional<IntPoint> hotSpot() const final { return WTF::nullopt; } |
| |
| IntSize frameSizeAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const final; |
| bool frameIsCompleteAtIndex(size_t) const final; |
| ImageOrientation frameOrientationAtIndex(size_t) const final; |
| |
| Seconds frameDurationAtIndex(size_t) const final; |
| bool frameHasAlphaAtIndex(size_t) const final; |
| bool frameAllowSubsamplingAtIndex(size_t) const final; |
| unsigned frameBytesAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const final; |
| |
| NativeImagePtr createFrameImageAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default, const DecodingOptions& = DecodingOptions(DecodingMode::Synchronous)) final; |
| |
| void setExpectedContentSize(long long) final; |
| void setData(SharedBuffer&, bool allDataReceived) final; |
| bool isAllDataReceived() const final { return m_isAllDataReceived; } |
| void clearFrameBufferCache(size_t) final; |
| |
| private: |
| ImageDecoderAVFObjC(SharedBuffer&, const String& mimeType, AlphaOption, GammaAndColorProfileOption); |
| |
| AVAssetTrack *firstEnabledTrack(); |
| void readSamples(); |
| void readTrackMetadata(); |
| bool storeSampleBuffer(CMSampleBufferRef); |
| void advanceCursor(); |
| void setTrack(AVAssetTrack *); |
| |
| const ImageDecoderAVFObjCSample* sampleAtIndex(size_t) const; |
| bool sampleIsComplete(const ImageDecoderAVFObjCSample&) const; |
| |
| String m_mimeType; |
| String m_uti; |
| RetainPtr<AVURLAsset> m_asset; |
| RetainPtr<AVAssetTrack> m_track; |
| RetainPtr<WebCoreSharedBufferResourceLoaderDelegate> m_loader; |
| std::unique_ptr<ImageRotationSessionVT> m_imageRotationSession; |
| Ref<WebCoreDecompressionSession> m_decompressionSession; |
| WTF::Function<void(EncodedDataStatus)> m_encodedDataStatusChangedCallback; |
| |
| SampleMap m_sampleData; |
| DecodeOrderSampleMap::iterator m_cursor; |
| Lock m_sampleGeneratorLock; |
| bool m_isAllDataReceived { false }; |
| Optional<IntSize> m_size; |
| }; |
| |
| } |
| #endif |