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// Copyright 2014 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_H_
#define MEDIA_MOJO_SERVICES_MOJO_CDM_H_
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "media/base/media_keys.h"
#include "media/mojo/interfaces/content_decryption_module.mojom.h"
#include "media/mojo/services/mojo_type_trait.h"
namespace mojo {
class ServiceProvider;
}
namespace media {
// A MediaKeys that proxies to a mojo::ContentDecryptionModule. That
// mojo::ContentDecryptionModule proxies back to the MojoCdm via the
// mojo::ContentDecryptionModuleClient interface.
class MojoCdm : public MediaKeys, public mojo::ContentDecryptionModuleClient {
public:
// |media_renderer_provider| is a ServiceProvider from a connected
// Application that is hosting a mojo::MediaRenderer.
MojoCdm(mojo::ContentDecryptionModulePtr remote_cdm,
const SessionMessageCB& session_message_cb,
const SessionReadyCB& session_ready_cb,
const SessionClosedCB& session_closed_cb,
const SessionErrorCB& session_error_cb,
const SessionKeysChangeCB& session_keys_change_cb,
const SessionExpirationUpdateCB& session_expiration_update_cb);
~MojoCdm() final;
// MediaKeys implementation.
void SetServerCertificate(const uint8_t* certificate_data,
int certificate_data_length,
scoped_ptr<SimpleCdmPromise> promise) final;
void CreateSession(const std::string& init_data_type,
const uint8_t* init_data,
int init_data_length,
SessionType session_type,
scoped_ptr<NewSessionCdmPromise> promise) final;
void LoadSession(const std::string& session_id,
scoped_ptr<NewSessionCdmPromise> promise) final;
void UpdateSession(const std::string& session_id,
const uint8_t* response,
int response_length,
scoped_ptr<SimpleCdmPromise> promise) final;
void CloseSession(const std::string& session_id,
scoped_ptr<SimpleCdmPromise> promise) final;
void RemoveSession(const std::string& session_id,
scoped_ptr<SimpleCdmPromise> promise) final;
CdmContext* GetCdmContext() final;
private:
// mojo::ContentDecryptionModuleClient implementation.
void OnSessionMessage(const mojo::String& session_id,
mojo::Array<uint8_t> message,
const mojo::String& destination_url) final;
void OnSessionReady(const mojo::String& session_id) final;
void OnSessionClosed(const mojo::String& session_id) final;
void OnSessionError(const mojo::String& session_id,
mojo::CdmException exception,
uint32_t system_code,
const mojo::String& error_message) final;
void OnSessionKeysChange(const mojo::String& session_id,
bool has_additional_usable_key) final;
void OnSessionExpirationUpdate(const mojo::String& session_id,
int64_t new_expiry_time_usec) final;
// Callbacks to handle CDM promises.
template <typename... T>
void OnPromiseResult(scoped_ptr<CdmPromiseTemplate<T...>> promise,
mojo::CdmPromiseResultPtr result,
typename MojoTypeTrait<T>::MojoType... args);
mojo::ContentDecryptionModulePtr remote_cdm_;
// Callbacks for firing session events.
SessionMessageCB session_message_cb_;
SessionReadyCB session_ready_cb_;
SessionClosedCB session_closed_cb_;
SessionErrorCB session_error_cb_;
SessionKeysChangeCB session_keys_change_cb_;
SessionExpirationUpdateCB session_expiration_update_cb_;
base::WeakPtrFactory<MojoCdm> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(MojoCdm);
};
} // namespace media
#endif // MEDIA_MOJO_SERVICES_MOJO_CDM_H_
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