1 files changed, 44 insertions, 0 deletions
diff --git a/dom/media/platforms/agnostic/eme/EMEAudioDecoder.cpp b/dom/media/platforms/agnostic/eme/EMEAudioDecoder.cpp
new file mode 100644
index 000000000..25e502025
--- /dev/null
+++ b/dom/media/platforms/agnostic/eme/EMEAudioDecoder.cpp
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "EMEAudioDecoder.h"
+#include "mozilla/CDMProxy.h"
+
+namespace mozilla {
+
+void
+EMEAudioCallbackAdapter::Error(GMPErr aErr)
+{
+  if (aErr == GMPNoKeyErr) {
+    // The GMP failed to decrypt a frame due to not having a key. This can
+    // happen if a key expires or a session is closed during playback.
+    NS_WARNING("GMP failed to decrypt due to lack of key");
+    return;
+  }
+  AudioCallbackAdapter::Error(aErr);
+}
+
+EMEAudioDecoder::EMEAudioDecoder(CDMProxy* aProxy,
+                                 const GMPAudioDecoderParams& aParams)
+  : GMPAudioDecoder(GMPAudioDecoderParams(aParams).WithAdapter(
+                    new EMEAudioCallbackAdapter(aParams.mCallback)))
+  , mProxy(aProxy)
+{}
+
+void
+EMEAudioDecoder::InitTags(nsTArray<nsCString>& aTags)
+{
+  aTags.AppendElement(NS_LITERAL_CSTRING("aac"));
+  aTags.AppendElement(NS_ConvertUTF16toUTF8(mProxy->KeySystem()));
+}
+
+nsCString
+EMEAudioDecoder::GetNodeId()
+{
+  return mProxy->GetNodeId();
+}
+
+} // namespace mozilla