blob: bcddaea2043ba9047bef0d3860eefd6075621ca4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
// 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"
namespace media {
const char kClearKey[] = "org.w3.clearkey";
const char kExternalClearKey[] = "org.chromium.externalclearkey";
bool IsClearKey(const std::string& key_system) {
return key_system == kClearKey;
}
bool IsChildKeySystemOf(const std::string& key_system,
const std::string& base) {
std::string prefix = base + '.';
return key_system.substr(0, prefix.size()) == prefix;
}
bool IsExternalClearKey(const std::string& key_system) {
return key_system == kExternalClearKey ||
IsChildKeySystemOf(key_system, kExternalClearKey);
}
} // namespace media
|