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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_MOJO_SERVICES_MOJO_CDM_SERVICE_CONTEXT_H_
#define MEDIA_MOJO_SERVICES_MOJO_CDM_SERVICE_CONTEXT_H_
#include <map>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "media/base/cdm_context.h"
#include "media/base/media_export.h"
namespace media {
class MojoCdmService;
// A class that creates, owns and manages all MojoCdmService instances.
class MEDIA_EXPORT MojoCdmServiceContext : public CdmContextProvider {
public:
MojoCdmServiceContext();
~MojoCdmServiceContext() override;
base::WeakPtr<MojoCdmServiceContext> GetWeakPtr();
// Registers The |cdm_service| with |cdm_id|.
void RegisterCdm(int cdm_id, MojoCdmService* cdm_service);
// Unregisters the CDM. Must be called before the CDM is destroyed.
void UnregisterCdm(int cdm_id);
// CdmContextProvider implementation.
// The returned CdmContext can be destroyed at any time if the pipe is
// disconnected.
// TODO(xhwang): When implementing SetCdm(), make sure we never dereference
// garbage. For example, use media::PlayerTracker.
CdmContext* GetCdmContext(int32_t cdm_id) override;
private:
// A map between CDM ID and MojoCdmService.
std::map<int, MojoCdmService*> cdm_services_;
// NOTE: Weak pointers must be invalidated before all other member variables.
base::WeakPtrFactory<MojoCdmServiceContext> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(MojoCdmServiceContext);
};
} // namespace media
#endif // MEDIA_MOJO_SERVICES_MOJO_CDM_SERVICE_CONTEXT_H_
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