Changes for calling the level 1 decrypt callout

Change-Id: Iccf76b59a64491952ee11ee2ed1a0e707a529f88

proprietary/wvm/include/WVMMediaSource.h

@@ -24,6 +24,9 @@
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <utils/RefBase.h>
+#ifdef REQUIRE_SECURE_BUFFERS
+#include "OEMCrypto_L1.h"
+#endif
 
 
 namespace android {
@@ -48,6 +51,24 @@ public:
 
     static int sLastError;
 
+#ifdef REQUIRE_SECURE_BUFFERS
+    class DecryptContext {
+    public:
+        void Initialize(MediaBuffer *mediaBuf) {
+            mMediaBuf = mediaBuf;
+            mOffset = 0;
+            memset(mIV, 0, sizeof(mIV));
+        }
+        MediaBuffer *mMediaBuf;
+        size_t mOffset;
+        static const int kCryptoBlockSize = 16;
+        unsigned char mIV[kCryptoBlockSize];
+    };
+    static void DecryptCallback(WVEsSelector esType, void* input, void* output,
+                                size_t length, int key);
+    static DecryptContext sDecryptContext[2]; // audio vs. video
+#endif
+
 protected:
     virtual ~WVMMediaSource();