/* -*- 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/DefineEnum.h"
#include "mozilla/Maybe.h"
#include "mozilla/dom/SourceBufferBinding.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
MOZ_DEFINE_ENUM_CLASS_WITH_TOSTRING_AT_CLASS_SCOPE(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_ */
