| /* |
| * Copyright (C) 2013 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 <wtf/MediaTime.h> |
| #include <wtf/RefPtr.h> |
| #include <wtf/StdMap.h> |
| |
| namespace WebCore { |
| |
| class MediaSample; |
| class SampleMap; |
| |
| class PresentationOrderSampleMap { |
| friend class SampleMap; |
| public: |
| using MapType = StdMap<MediaTime, RefPtr<MediaSample>>; |
| typedef MapType::iterator iterator; |
| typedef MapType::const_iterator const_iterator; |
| typedef MapType::reverse_iterator reverse_iterator; |
| typedef MapType::const_reverse_iterator const_reverse_iterator; |
| typedef std::pair<iterator, iterator> iterator_range; |
| typedef MapType::value_type value_type; |
| |
| iterator begin() { return m_samples.begin(); } |
| const_iterator begin() const { return m_samples.begin(); } |
| iterator end() { return m_samples.end(); } |
| const_iterator end() const { return m_samples.end(); } |
| reverse_iterator rbegin() { return m_samples.rbegin(); } |
| const_reverse_iterator rbegin() const { return m_samples.rbegin(); } |
| reverse_iterator rend() { return m_samples.rend(); } |
| const_reverse_iterator rend() const { return m_samples.rend(); } |
| |
| size_t size() const { return m_samples.size(); } |
| |
| WEBCORE_EXPORT iterator findSampleWithPresentationTime(const MediaTime&); |
| WEBCORE_EXPORT iterator findSampleContainingPresentationTime(const MediaTime&); |
| WEBCORE_EXPORT iterator findSampleContainingOrAfterPresentationTime(const MediaTime&); |
| WEBCORE_EXPORT iterator findSampleStartingOnOrAfterPresentationTime(const MediaTime&); |
| WEBCORE_EXPORT iterator findSampleStartingAfterPresentationTime(const MediaTime&); |
| WEBCORE_EXPORT reverse_iterator reverseFindSampleContainingPresentationTime(const MediaTime&); |
| WEBCORE_EXPORT reverse_iterator reverseFindSampleBeforePresentationTime(const MediaTime&); |
| WEBCORE_EXPORT iterator_range findSamplesBetweenPresentationTimes(const MediaTime&, const MediaTime&); |
| WEBCORE_EXPORT iterator_range findSamplesBetweenPresentationTimesFromEnd(const MediaTime&, const MediaTime&); |
| |
| private: |
| MapType m_samples; |
| }; |
| |
| class DecodeOrderSampleMap { |
| friend class SampleMap; |
| public: |
| typedef std::pair<MediaTime, MediaTime> KeyType; |
| using MapType = StdMap<KeyType, RefPtr<MediaSample>>; |
| typedef MapType::iterator iterator; |
| typedef MapType::const_iterator const_iterator; |
| typedef MapType::reverse_iterator reverse_iterator; |
| typedef MapType::const_reverse_iterator const_reverse_iterator; |
| typedef std::pair<iterator, iterator> iterator_range; |
| typedef std::pair<reverse_iterator, reverse_iterator> reverse_iterator_range; |
| typedef MapType::value_type value_type; |
| |
| iterator begin() { return m_samples.begin(); } |
| const_iterator begin() const { return m_samples.begin(); } |
| iterator end() { return m_samples.end(); } |
| const_iterator end() const { return m_samples.end(); } |
| reverse_iterator rbegin() { return m_samples.rbegin(); } |
| const_reverse_iterator rbegin() const { return m_samples.rbegin(); } |
| reverse_iterator rend() { return m_samples.rend(); } |
| const_reverse_iterator rend() const { return m_samples.rend(); } |
| size_t size() const { return m_samples.size(); } |
| |
| WEBCORE_EXPORT iterator findSampleWithDecodeKey(const KeyType&); |
| WEBCORE_EXPORT iterator findSampleAfterDecodeKey(const KeyType&); |
| WEBCORE_EXPORT reverse_iterator reverseFindSampleWithDecodeKey(const KeyType&); |
| WEBCORE_EXPORT reverse_iterator findSyncSamplePriorToPresentationTime(const MediaTime&, const MediaTime& threshold = MediaTime::positiveInfiniteTime()); |
| WEBCORE_EXPORT reverse_iterator findSyncSamplePriorToDecodeIterator(reverse_iterator); |
| WEBCORE_EXPORT iterator findSyncSampleAfterPresentationTime(const MediaTime&, const MediaTime& threshold = MediaTime::positiveInfiniteTime()); |
| WEBCORE_EXPORT iterator findSyncSampleAfterDecodeIterator(iterator); |
| WEBCORE_EXPORT reverse_iterator_range findDependentSamples(MediaSample*); |
| WEBCORE_EXPORT iterator_range findSamplesBetweenDecodeKeys(const KeyType&, const KeyType&); |
| |
| private: |
| MapType m_samples; |
| PresentationOrderSampleMap m_presentationOrder; |
| }; |
| |
| class SampleMap { |
| public: |
| SampleMap() = default; |
| |
| WEBCORE_EXPORT bool empty() const; |
| size_t size() const { return m_decodeOrder.m_samples.size(); } |
| WEBCORE_EXPORT void clear(); |
| WEBCORE_EXPORT void addSample(MediaSample&); |
| WEBCORE_EXPORT void removeSample(MediaSample*); |
| size_t sizeInBytes() const { return m_totalSize; } |
| |
| template<typename I> |
| void addRange(I begin, I end); |
| |
| DecodeOrderSampleMap& decodeOrder() { return m_decodeOrder; } |
| const DecodeOrderSampleMap& decodeOrder() const { return m_decodeOrder; } |
| PresentationOrderSampleMap& presentationOrder() { return m_decodeOrder.m_presentationOrder; } |
| const PresentationOrderSampleMap& presentationOrder() const { return m_decodeOrder.m_presentationOrder; } |
| |
| private: |
| DecodeOrderSampleMap m_decodeOrder; |
| size_t m_totalSize { 0 }; |
| }; |
| |
| template<typename I> |
| inline void SampleMap::addRange(I begin, I end) |
| { |
| for (I iter = begin; iter != end; ++iter) |
| addSample(*iter->second); |
| } |
| |
| } // namespace WebCore |