/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef mozilla_SourceBufferAttributes_h_ #define mozilla_SourceBufferAttributes_h_ #include "TimeUnits.h" #include "mozilla/dom/SourceBufferBinding.h" #include "mozilla/Maybe.h" namespace mozilla { class SourceBufferAttributes { public: // Current state as per Segment Parser Loop Algorithm // http://w3c.github.io/media-source/index.html#sourcebuffer-segment-parser-loop enum class AppendState { WAITING_FOR_SEGMENT, PARSING_INIT_SEGMENT, PARSING_MEDIA_SEGMENT, }; explicit SourceBufferAttributes(bool aGenerateTimestamp) : mGenerateTimestamps(aGenerateTimestamp) , mAppendWindowStart(0) , mAppendWindowEnd(PositiveInfinity<double>()) , mAppendMode(dom::SourceBufferAppendMode::Segments) , mApparentTimestampOffset(0) , mAppendState(AppendState::WAITING_FOR_SEGMENT) {} SourceBufferAttributes(const SourceBufferAttributes& aOther) = default; double GetAppendWindowStart() const { return mAppendWindowStart; } double GetAppendWindowEnd() const { return mAppendWindowEnd; } void SetAppendWindowStart(double aWindowStart) { mAppendWindowStart = aWindowStart; } void SetAppendWindowEnd(double aWindowEnd) { mAppendWindowEnd = aWindowEnd; } double GetApparentTimestampOffset() const { return mApparentTimestampOffset; } void SetApparentTimestampOffset(double aTimestampOffset) { mApparentTimestampOffset = aTimestampOffset; mTimestampOffset = media::TimeUnit::FromSeconds(aTimestampOffset); } media::TimeUnit GetTimestampOffset() const { return mTimestampOffset; } void SetTimestampOffset(const media::TimeUnit& aTimestampOffset) { mTimestampOffset = aTimestampOffset; mApparentTimestampOffset = aTimestampOffset.ToSeconds(); } dom::SourceBufferAppendMode GetAppendMode() const { return mAppendMode; } void SetAppendMode(dom::SourceBufferAppendMode aAppendMode) { mAppendMode = aAppendMode; } void SetGroupStartTimestamp(const media::TimeUnit& aGroupStartTimestamp) { mGroupStartTimestamp = Some(aGroupStartTimestamp); } media::TimeUnit GetGroupStartTimestamp() const { return mGroupStartTimestamp.ref(); } bool HaveGroupStartTimestamp() const { return mGroupStartTimestamp.isSome(); } void ResetGroupStartTimestamp() { mGroupStartTimestamp.reset(); } void RestartGroupStartTimestamp() { mGroupStartTimestamp = Some(mGroupEndTimestamp); } media::TimeUnit GetGroupEndTimestamp() const { return mGroupEndTimestamp; } void SetGroupEndTimestamp(const media::TimeUnit& aGroupEndTimestamp) { mGroupEndTimestamp = aGroupEndTimestamp; } AppendState GetAppendState() const { return mAppendState; } void SetAppendState(AppendState aState) { mAppendState = aState; } // mGenerateTimestamp isn't mutable once the source buffer has been constructed bool mGenerateTimestamps; SourceBufferAttributes& operator=(const SourceBufferAttributes& aOther) = default; private: SourceBufferAttributes() = delete; double mAppendWindowStart; double mAppendWindowEnd; dom::SourceBufferAppendMode mAppendMode; double mApparentTimestampOffset; media::TimeUnit mTimestampOffset; Maybe<media::TimeUnit> mGroupStartTimestamp; media::TimeUnit mGroupEndTimestamp; // The current append state as per https://w3c.github.io/media-source/#sourcebuffer-append-state AppendState mAppendState; }; } // end namespace mozilla #endif /* mozilla_SourceBufferAttributes_h_ */