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// Copyright (c) 2012 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_BASE_DECRYPTOR_CLIENT_H_
#define MEDIA_BASE_DECRYPTOR_CLIENT_H_
#include <string>
#include "base/memory/scoped_ptr.h"
#include "media/base/decryptor.h"
namespace media {
// Interface used by a decryptor to fire key events.
// See: http://dvcs.w3.org/hg/html-media/raw-file/tip/encrypted-media/encrypted-media.html#event-summary
class DecryptorClient {
public:
// Signals that a key has been added.
virtual void KeyAdded(const std::string& key_system,
const std::string& session_id) = 0;
// Signals that a key error occurred. The |system_code| is key
// system-dependent. For clear key system, the |system_code| is always zero.
virtual void KeyError(const std::string& key_system,
const std::string& session_id,
Decryptor::KeyError error_code,
int system_code) = 0;
// Signals that a key message has been generated.
virtual void KeyMessage(const std::string& key_system,
const std::string& session_id,
scoped_array<uint8> message,
int message_length,
const std::string& default_url) = 0;
// Signals that a key is needed for decryption. |key_system| and |session_id|
// can be empty if the key system has not been selected.
virtual void NeedKey(const std::string& key_system,
const std::string& session_id,
scoped_array<uint8> init_data,
int init_data_length) = 0;
protected:
virtual ~DecryptorClient() {}
};
} // namespace media
#endif // MEDIA_BASE_DECRYPTOR_CLIENT_H_
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