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/* -*- 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_SOURCEBUFFERTASK_H_
#define MOZILLA_SOURCEBUFFERTASK_H_
#include "mozilla/MozPromise.h"
#include "SourceBufferAttributes.h"
#include "TimeUnits.h"
#include "MediaResult.h"
#include <utility>
namespace mozilla {
class SourceBufferTask {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(SourceBufferTask);
enum class Type {
AppendBuffer,
Abort,
Reset,
RangeRemoval,
EvictData,
Detach,
ChangeType
};
typedef std::pair<bool, SourceBufferAttributes> AppendBufferResult;
typedef MozPromise<AppendBufferResult, MediaResult, /* IsExclusive = */ true>
AppendPromise;
typedef MozPromise<bool, nsresult, /* IsExclusive = */ true>
RangeRemovalPromise;
virtual Type GetType() const = 0;
virtual const char* GetTypeName() const = 0;
template <typename ReturnType>
ReturnType* As() {
MOZ_ASSERT(this->GetType() == ReturnType::sType);
return static_cast<ReturnType*>(this);
}
protected:
virtual ~SourceBufferTask() = default;
};
class AppendBufferTask : public SourceBufferTask {
public:
AppendBufferTask(already_AddRefed<MediaByteBuffer> aData,
const SourceBufferAttributes& aAttributes)
: mBuffer(aData), mAttributes(aAttributes) {}
static const Type sType = Type::AppendBuffer;
Type GetType() const override { return Type::AppendBuffer; }
const char* GetTypeName() const override { return "AppendBuffer"; }
RefPtr<MediaByteBuffer> mBuffer;
SourceBufferAttributes mAttributes;
MozPromiseHolder<AppendPromise> mPromise;
};
class AbortTask : public SourceBufferTask {
public:
static const Type sType = Type::Abort;
Type GetType() const override { return Type::Abort; }
const char* GetTypeName() const override { return "Abort"; }
};
class ResetTask : public SourceBufferTask {
public:
static const Type sType = Type::Reset;
Type GetType() const override { return Type::Reset; }
const char* GetTypeName() const override { return "Reset"; }
};
class RangeRemovalTask : public SourceBufferTask {
public:
explicit RangeRemovalTask(const media::TimeInterval& aRange)
: mRange(aRange) {}
static const Type sType = Type::RangeRemoval;
Type GetType() const override { return Type::RangeRemoval; }
const char* GetTypeName() const override { return "RangeRemoval"; }
media::TimeInterval mRange;
MozPromiseHolder<RangeRemovalPromise> mPromise;
};
class EvictDataTask : public SourceBufferTask {
public:
EvictDataTask(const media::TimeUnit& aPlaybackTime, int64_t aSizetoEvict)
: mPlaybackTime(aPlaybackTime), mSizeToEvict(aSizetoEvict) {}
static const Type sType = Type::EvictData;
Type GetType() const override { return Type::EvictData; }
const char* GetTypeName() const override { return "EvictData"; }
media::TimeUnit mPlaybackTime;
int64_t mSizeToEvict;
};
class DetachTask : public SourceBufferTask {
public:
static const Type sType = Type::Detach;
Type GetType() const override { return Type::Detach; }
const char* GetTypeName() const override { return "Detach"; }
};
class ChangeTypeTask : public SourceBufferTask {
public:
explicit ChangeTypeTask(const MediaContainerType& aType) : mType(aType) {}
static const Type sType = Type::ChangeType;
Type GetType() const override { return Type::ChangeType; }
const char* GetTypeName() const override { return "ChangeType"; }
const MediaContainerType mType;
};
} // namespace mozilla
#endif
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