// Copyright 2013 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 CONTENT_PUBLIC_RENDERER_KEY_SYSTEM_INFO_H_
#define CONTENT_PUBLIC_RENDERER_KEY_SYSTEM_INFO_H_
#include <string>
#include <utility>
#include <vector>
#include "base/basictypes.h"
#include "content/common/content_export.h"
// Definitions:
// * Key system
// https://dvcs.w3.org/hg/html-media/raw-file/default/encrypted-media/encrypted-media.html#key-system
// * Concrete key system
// A key system string that can be instantiated, such as
// via the MediaKeys constructor. Examples include "org.w3.clearkey" and
// "com.widevine.alpha".
// * Abstract key system
// A key system string that cannot be instantiated like a concrete key system
// but is otherwise useful, such as in discovery using isTypeSupported().
// * Parent key system
// A key system string that is one level up from the child key system. It may
// be an abstract key system.
// As an example, "com.example" is the parent of "com.example.foo".
namespace content {
// Contains information about an EME key system as well as how to instantiate
// the corresponding CDM.
struct CONTENT_EXPORT KeySystemInfo {
// Represents container-codec combinations. The second string may contain zero
// or more codecs separated by commas.
typedef std::pair<std::string, std::string> ContainerCodecsPair;
explicit KeySystemInfo(const std::string& key_system);
~KeySystemInfo();
std::string key_system;
// Specifies container and codec combinations supported by |key_system|.
// Multiple codecs may be listed for each container.
// In all cases, the container without a codec is also always supported.
std::vector<ContainerCodecsPair> supported_types;
// A hierarchical parent for |key_system|. This value can be used to check
// supported types but cannot be used to instantiate a MediaKeys object.
// Only one parent key system is currently supported per concrete key system.
std::string parent_key_system;
// The following indicate how the corresponding CDM should be instantiated.
bool use_aes_decryptor;
#if defined(ENABLE_PEPPER_CDMS)
std::string pepper_type;
#endif
};
} // namespace content
#endif // CONTENT_PUBLIC_RENDERER_KEY_SYSTEM_INFO_H_