chromecast/renderer/key_systems_cast.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 "chromecast/renderer/key_systems_cast.h"
   6
   7 #include <string>
   8
   9 #include "base/command_line.h"
  10 #include "base/logging.h"
  11 #include "chromecast/media/base/key_systems_common.h"
  12 #include "components/cdm/renderer/widevine_key_systems.h"
  13 #include "media/base/eme_constants.h"
  14
  15 #include "widevine_cdm_version.h" // In SHARED_INTERMEDIATE_DIR.
  16
  17 namespace chromecast {
  18 namespace shell {
  19
  20 void AddKeySystemWithCodecs(
  21     const std::string& key_system_name,
  22     std::vector<::media::KeySystemInfo>* key_systems_info) {
  23   ::media::KeySystemInfo info;
  24   info.key_system = key_system_name;
  25   info.supported_init_data_types = ::media::kInitDataTypeMaskCenc;
  26   info.supported_codecs =
  27       ::media::EME_CODEC_MP4_AAC | ::media::EME_CODEC_MP4_AVC1;
  28   info.max_audio_robustness = ::media::EmeRobustness::EMPTY;
  29   info.max_video_robustness = ::media::EmeRobustness::EMPTY;
  30   info.persistent_license_support =
  31       ::media::EmeSessionTypeSupport::NOT_SUPPORTED;
  32   info.persistent_release_message_support =
  33       ::media::EmeSessionTypeSupport::NOT_SUPPORTED;
  34   info.persistent_state_support = ::media::EmeFeatureSupport::ALWAYS_ENABLED;
  35   info.distinctive_identifier_support =
  36       ::media::EmeFeatureSupport::ALWAYS_ENABLED;
  37   key_systems_info->push_back(info);
  38 }
  39
  40 void AddChromecastKeySystems(
  41     std::vector<::media::KeySystemInfo>* key_systems_info) {
  42 #if defined(WIDEVINE_CDM_AVAILABLE)
  43   AddWidevineWithCodecs(
  44       cdm::WIDEVINE, ::media::EME_CODEC_MP4_AAC | ::media::EME_CODEC_MP4_AVC1,
  45       ::media::EmeRobustness::HW_SECURE_ALL,          // Max audio robustness.
  46       ::media::EmeRobustness::HW_SECURE_ALL,          // Max video robustness.
  47       ::media::EmeSessionTypeSupport::NOT_SUPPORTED,  // persistent-license.
  48       ::media::EmeSessionTypeSupport::
  49           NOT_SUPPORTED,  // persistent-release-message.
  50       // Note: On Chromecast, all CDMs may have persistent state.
  51       ::media::EmeFeatureSupport::ALWAYS_ENABLED,  // Persistent state.
  52       ::media::EmeFeatureSupport::ALWAYS_ENABLED,  // Distinctive
  53                                                    // identifier.
  54       key_systems_info);
  55 #endif
  56
  57 #if defined(PLAYREADY_CDM_AVAILABLE)
  58   AddKeySystemWithCodecs(media::kChromecastPlayreadyKeySystem,
  59                          key_systems_info);
  60 #endif
  61 }
  62
  63 }  // namespace shell
  64 }  // namespace chromecast