blob: f0abaf0574724115cd34d2d8002fb462b093093e [file] [log] [blame]
// 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.
#include "media/cdm/key_system_names.h"
#include <string>
namespace media {
const char kClearKey[] = "org.w3.clearkey";
const char kExternalClearKey[] = "org.chromium.externalclearkey";
bool IsParentKeySystemOf(const std::string& parent_key_system,
const std::string& key_system) {
std::string prefix = parent_key_system + '.';
return key_system.substr(0, prefix.size()) == prefix;
}
bool IsExternalClearKey(const std::string& key_system) {
return key_system == kExternalClearKey ||
IsParentKeySystemOf(kExternalClearKey, key_system);
}
} // namespace media