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Unified Diff: media/crypto/decryptor_client.h

Issue 10534096: Generalize AesDecryptor to make it more spec compliant. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Fix compile error on Windows. Created 8 years, 6 months ago
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Index: media/crypto/decryptor_client.h
diff --git a/media/crypto/decryptor_client.h b/media/crypto/decryptor_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..d8b0ec61dbc82fd517788cee853196832aed277a
--- /dev/null
+++ b/media/crypto/decryptor_client.h
@@ -0,0 +1,50 @@
+// Copyright (c) 2012 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.
+
+#ifndef MEDIA_CRYPTO_DECRYPTOR_CLIENT_H_
+#define MEDIA_CRYPTO_DECRYPTOR_CLIENT_H_
+
+#include <string>
+
+#include "base/memory/scoped_ptr.h"
+#include "media/crypto/aes_decryptor.h"
+
+namespace media {
+
+// Interface used by a decryptor to fire key events.
+// See: http://dvcs.w3.org/hg/html-media/raw-file/tip/encrypted-media/encrypted-media.html#event-summary
+class DecryptorClient {
+ public:
+ // Signals that a key has been added.
+ virtual void KeyAdded(const std::string& key_system,
+ const std::string& session_id) = 0;
+
+ // Signals that a key error happened. The |system_code| is key system
ddorwin 2012/06/14 21:00:13 nit: s/happened/occurred/
xhwang 2012/06/15 01:41:04 Done.
+ // dependent. For clear key system, the |system_code| is always zero.
ddorwin 2012/06/14 21:00:13 nit: add dash: system-dependent
xhwang 2012/06/15 01:41:04 Done.
+ virtual void KeyError(const std::string& key_system,
+ const std::string& session_id,
+ AesDecryptor::KeyError error_code,
+ int system_code) = 0;
+
+ // Signals that a key message has been generated.
+ virtual void KeyMessage(const std::string& key_system,
+ const std::string& session_id,
+ scoped_array<uint8> message,
+ int message_length,
+ const std::string& default_url) = 0;
+
+ // Signals that a key is needed for decryption. |key_system| and |session_id|
+ // can be empty if the key system has not been selected.
+ virtual void NeedKey(const std::string& key_system,
+ const std::string& session_id,
+ scoped_array<uint8> init_data,
+ int init_data_length) = 0;
+
+ protected:
+ ~DecryptorClient() {}
+};
+
+} // namespace media
+
+#endif // MEDIA_CRYPTO_DECRYPTOR_CLIENT_H_

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