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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "components/cdm/renderer/widevine_key_systems.h"
      6 
      7 #include <string>
      8 #include <vector>
      9 
     10 #include "base/logging.h"
     11 
     12 #include "widevine_cdm_version.h"  // In SHARED_INTERMEDIATE_DIR.
     13 
     14 #if defined(WIDEVINE_CDM_AVAILABLE)
     15 
     16 using content::KeySystemInfo;
     17 using content::SupportedCodecs;
     18 
     19 namespace cdm {
     20 
     21 // Return |name|'s parent key system.
     22 static std::string GetDirectParentName(std::string name) {
     23   size_t last_period = name.find_last_of('.');
     24   DCHECK_GT(last_period, 0u);
     25   return name.substr(0u, last_period);
     26 }
     27 
     28 void AddWidevineWithCodecs(WidevineCdmType widevine_cdm_type,
     29                            SupportedCodecs supported_codecs,
     30                            std::vector<KeySystemInfo>* concrete_key_systems) {
     31   KeySystemInfo info(kWidevineKeySystem);
     32 
     33   switch (widevine_cdm_type) {
     34     case WIDEVINE:
     35       // For standard Widevine, add parent name.
     36       info.parent_key_system = GetDirectParentName(kWidevineKeySystem);
     37       break;
     38 #if defined(OS_ANDROID)
     39     case WIDEVINE_HR_NON_COMPOSITING:
     40       info.key_system.append(".hrnoncompositing");
     41       break;
     42 #endif  // defined(OS_ANDROID)
     43     default:
     44       NOTREACHED();
     45   }
     46 
     47   // TODO(xhwang): A container or an initDataType may be supported even though
     48   // there are no codecs supported in that container. Fix this when we support
     49   // initDataType.
     50   info.supported_codecs = supported_codecs;
     51 
     52 #if defined(ENABLE_PEPPER_CDMS)
     53   info.pepper_type = kWidevineCdmPluginMimeType;
     54 #endif  // defined(ENABLE_PEPPER_CDMS)
     55 
     56   concrete_key_systems->push_back(info);
     57 }
     58 
     59 }  // namespace cdm
     60 
     61 #endif  // defined(WIDEVINE_CDM_AVAILABLE)
     62