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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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_ */
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