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-rw-r--r--dom/media/mediasource/SourceBufferTask.h126
1 files changed, 126 insertions, 0 deletions
diff --git a/dom/media/mediasource/SourceBufferTask.h b/dom/media/mediasource/SourceBufferTask.h
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+++ b/dom/media/mediasource/SourceBufferTask.h
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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