Support HEVC through EME

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_system_properties.h"
 #include "media/base/eme_constants.h"
 #include "media/base/key_system_properties.h"
+#include "media/media_features.h"
 
 #include "widevine_cdm_version.h" // In SHARED_INTERMEDIATE_DIR.
 
 using ::media::EmeConfigRule;
 using ::media::EmeFeatureSupport;
 using ::media::EmeInitDataType;
 using ::media::EmeMediaType;
 using ::media::EmeSessionTypeSupport;
 using ::media::SupportedCodecs;
 
@@ skipping 10 matching lines @@
 
   std::string GetKeySystemName() const override {
     return media::kChromecastPlayreadyKeySystem;
   }
 
   bool IsSupportedInitDataType(EmeInitDataType init_data_type) const override {
     return init_data_type == EmeInitDataType::CENC;
   }
 
   SupportedCodecs GetSupportedCodecs() const override {
-    return ::media::EME_CODEC_MP4_AAC | ::media::EME_CODEC_MP4_AVC1;
+    SupportedCodecs codecs =
+        ::media::EME_CODEC_MP4_AAC | ::media::EME_CODEC_MP4_AVC1;
+#if BUILDFLAG(ENABLE_HEVC_DEMUXING)
+    codecs |= ::media::EME_CODEC_MP4_HEVC;
+#endif
+    return codecs;
   }
 
   EmeConfigRule GetRobustnessConfigRule(
       EmeMediaType media_type,
       const std::string& requested_robustness) const override {
     return requested_robustness.empty() ? EmeConfigRule::SUPPORTED
                                         : EmeConfigRule::NOT_SUPPORTED;
   }
 
   EmeSessionTypeSupport GetPersistentLicenseSessionSupport() const override {
@@ skipping 47 matching lines @@
       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.
 #endif  // defined(WIDEVINE_CDM_AVAILABLE)
 }
 
 }  // namespace shell
 }  // namespace chromecast