Some crypto stuff, error codes

Add crypto/drm related functions, define some media errors
instead of using magic numbers in the code.

Change-Id: I5924cba0bfcdb3623073c9182a646b70f4ead5a5
diff --git a/include/ndk/NdkMediaError.h b/include/ndk/NdkMediaError.h
new file mode 100644
index 0000000..b89a10e
--- /dev/null
+++ b/include/ndk/NdkMediaError.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+
+#ifndef _NDK_MEDIA_ERROR_H
+#define _NDK_MEDIA_ERROR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum {
+    AMEDIAERROR_BASE = -10000,
+
+    AMEDIAERROR_GENERIC     = AMEDIAERROR_BASE,
+    AMEDIAERROR_MALFORMED   = AMEDIAERROR_BASE - 1,
+    AMEDIAERROR_UNSUPPORTED = AMEDIAERROR_BASE - 2
+};
+
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _NDK_MEDIA_ERROR_H