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 using ::media::EmeFeatureSupport;
  18 using ::media::EmeRobustness;
  19 using ::media::EmeSessionTypeSupport;
  20
  21 namespace chromecast {
  22 namespace shell {
  23
  24 void AddKeySystemWithCodecs(
  25     const std::string& key_system_name,
  26     std::vector<::media::KeySystemInfo>* key_systems_info) {
  27   ::media::KeySystemInfo info;
  28   info.key_system = key_system_name;
  29   info.supported_init_data_types = ::media::kInitDataTypeMaskCenc;
  30   info.supported_codecs =
  31       ::media::EME_CODEC_MP4_AAC | ::media::EME_CODEC_MP4_AVC1;
  32   info.max_audio_robustness = ::media::EmeRobustness::EMPTY;
  33   info.max_video_robustness = ::media::EmeRobustness::EMPTY;
  34   info.persistent_license_support =
  35       ::media::EmeSessionTypeSupport::NOT_SUPPORTED;
  36   info.persistent_release_message_support =
  37       ::media::EmeSessionTypeSupport::NOT_SUPPORTED;
  38   info.persistent_state_support = ::media::EmeFeatureSupport::ALWAYS_ENABLED;
  39   info.distinctive_identifier_support =
  40       ::media::EmeFeatureSupport::ALWAYS_ENABLED;
  41   key_systems_info->push_back(info);
  42 }
  43
  44 void AddChromecastKeySystems(
  45     std::vector<::media::KeySystemInfo>* key_systems_info) {
  46 #if defined(WIDEVINE_CDM_AVAILABLE)
  47   ::media::SupportedCodecs codecs =
  48       ::media::EME_CODEC_MP4_AAC | ::media::EME_CODEC_MP4_AVC1;
  49   AddWidevineWithCodecs(
  50       cdm::WIDEVINE,
  51       codecs,                                // Regular codecs.
  52 #if defined(OS_ANDROID)
  53       codecs,                                // Hardware-secure codecs.
  54 #endif  // defined(OS_ANDROID)
  55       EmeRobustness::HW_SECURE_ALL,          // Max audio robustness.
  56       EmeRobustness::HW_SECURE_ALL,          // Max video robustness.
  57       EmeSessionTypeSupport::NOT_SUPPORTED,  // persistent-license.
  58       EmeSessionTypeSupport::NOT_SUPPORTED,  // persistent-release-message.
  59       // Note: On Chromecast, all CDMs may have persistent state.
  60       EmeFeatureSupport::ALWAYS_ENABLED,     // Persistent state.
  61       EmeFeatureSupport::ALWAYS_ENABLED,     // Distinctive identifier.
  62       key_systems_info);
  63 #endif  // defined(WIDEVINE_CDM_AVAILABLE)
  64
  65 #if defined(PLAYREADY_CDM_AVAILABLE)
  66   AddKeySystemWithCodecs(media::kChromecastPlayreadyKeySystem,
  67                          key_systems_info);
  68 #endif  // defined(PLAYREADY_CDM_AVAILABLE)
  69 }
  70
  71 }  // namespace shell
  72 }  // namespace chromecast