components/cdm/renderer/widevine_key_systems.cc

   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)