Convert Widevine and Android platform key systems to KeySystemProperties

chromecast/renderer/key_systems_cast.cc

 // Copyright 2014 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 "chromecast/renderer/key_systems_cast.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "build/build_config.h"
 #include "chromecast/media/base/key_systems_common.h"
-#include "components/cdm/renderer/widevine_key_systems.h"
+#include "components/cdm/renderer/widevine_key_system_properties.h"
 #include "media/base/eme_constants.h"
 
-#include "widevine_cdm_version.h" // In SHARED_INTERMEDIATE_DIR.
-
 using ::media::EmeFeatureSupport;
 using ::media::EmeRobustness;
 using ::media::EmeSessionTypeSupport;
 
 namespace chromecast {
 namespace shell {
+namespace {
 
+#if defined(PLAYREADY_CDM_AVAILABLE)
 void AddKeySystemWithCodecs(
     const std::string& key_system_name,
     std::vector<::media::KeySystemInfo>* key_systems_info) {
   ::media::KeySystemInfo info;
   info.key_system = key_system_name;
   info.supported_init_data_types = ::media::kInitDataTypeMaskCenc;
   info.supported_codecs =
       ::media::EME_CODEC_MP4_AAC | ::media::EME_CODEC_MP4_AVC1;
-  info.max_audio_robustness = ::media::EmeRobustness::EMPTY;
-  info.max_video_robustness = ::media::EmeRobustness::EMPTY;
+  info.max_audio_robustness = EmeRobustness::EMPTY;
+  info.max_video_robustness = EmeRobustness::EMPTY;
 #if defined(OS_ANDROID)
-  info.persistent_license_support =
-      ::media::EmeSessionTypeSupport::NOT_SUPPORTED;
+  info.persistent_license_support = EmeSessionTypeSupport::NOT_SUPPORTED;
 #else
-  info.persistent_license_support =
-      ::media::EmeSessionTypeSupport::SUPPORTED;
+  info.persistent_license_support = EmeSessionTypeSupport::SUPPORTED;
 #endif
   info.persistent_release_message_support =
-      ::media::EmeSessionTypeSupport::NOT_SUPPORTED;
-  info.persistent_state_support = ::media::EmeFeatureSupport::ALWAYS_ENABLED;
-  info.distinctive_identifier_support =
-      ::media::EmeFeatureSupport::ALWAYS_ENABLED;
+      EmeSessionTypeSupport::NOT_SUPPORTED;
+  info.persistent_state_support = EmeFeatureSupport::ALWAYS_ENABLED;
+  info.distinctive_identifier_support = EmeFeatureSupport::ALWAYS_ENABLED;
   key_systems_info->push_back(info);
 }
+#endif  // defined(PLAYREADY_CDM_AVAILABLE)
+
+}  // namespace
 
 void AddChromecastKeySystems(
-    std::vector<::media::KeySystemInfo>* key_systems_info) {
+    std::vector<std::unique_ptr<::media::KeySystemProperties>>*
+        key_systems_properties) {
 #if defined(WIDEVINE_CDM_AVAILABLE)

[ddorwin, 2016/04/27 22:41:54]

The header that defines this was removed. Does chromecast always define it? If
so, this wouldn't be necessary. Or maybe it is conditionally defined in the
build files?

[halliwell, 2016/04/27 23:50:45]

Good point, restored the header for now (we might be able to make it
unconditional soon).

   ::media::SupportedCodecs codecs =
       ::media::EME_CODEC_MP4_AAC | ::media::EME_CODEC_MP4_AVC1 |
       ::media::EME_CODEC_WEBM_VP8 | ::media::EME_CODEC_WEBM_VP9;
-  cdm::AddWidevineWithCodecs(
-      codecs,                                // Regular codecs.
+  key_systems->emplace_back(new cdm::WidevineKeySystemProperties(
+      codecs,  // Regular codecs.
 #if defined(OS_ANDROID)
-      codecs,                                // Hardware-secure codecs.
-#endif  // defined(OS_ANDROID)
+      codecs,  // Hardware-secure codecs.
+#endif
       EmeRobustness::HW_SECURE_ALL,          // Max audio robustness.
       EmeRobustness::HW_SECURE_ALL,          // Max video robustness.
       EmeSessionTypeSupport::NOT_SUPPORTED,  // persistent-license.
       EmeSessionTypeSupport::NOT_SUPPORTED,  // persistent-release-message.
       // Note: On Chromecast, all CDMs may have persistent state.
-      EmeFeatureSupport::ALWAYS_ENABLED,     // Persistent state.
-      EmeFeatureSupport::ALWAYS_ENABLED,     // Distinctive identifier.
-      key_systems_info);
+      EmeFeatureSupport::ALWAYS_ENABLED,    // Persistent state.
+      EmeFeatureSupport::ALWAYS_ENABLED));  // Distinctive identifier.
 #endif  // defined(WIDEVINE_CDM_AVAILABLE)
+}
 
+void AddChromecastKeySystemsInfo(
+    std::vector<::media::KeySystemInfo>* key_systems_info) {
 #if defined(PLAYREADY_CDM_AVAILABLE)
   AddKeySystemWithCodecs(media::kChromecastPlayreadyKeySystem,

[ddorwin, 2016/04/27 22:41:54]

If ECK is converted, this would be the only reason both methods are necessary in
the public interface.

[halliwell, 2016/04/27 23:50:45]

Yep, I was planning to do ECK and Chromecast PR next, then can remove
KeySystemInfo and everything related.

                          key_systems_info);
 #endif  // defined(PLAYREADY_CDM_AVAILABLE)
 }
 
 }  // namespace shell
 }  // namespace chromecast