Preliminary support for HDCP as a binder service for wifi display support.

Change-Id: Ie0de1c086c629a668d1c7863992eef56fb94157c

1 files changed, 101 insertions, 0 deletions

diff --git a/media/libmediaplayerservice/HDCP.cpp b/media/libmediaplayerservice/HDCP.cpp
new file mode 100644
index 0000000..6f8a465
--- /dev/null
+++ b/media/libmediaplayerservice/HDCP.cpp
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "HDCP"
+#include <utils/Log.h>
+
+#include "HDCP.h"
+
+#include <media/stagefright/foundation/ADebug.h>
+
+#include <dlfcn.h>
+
+namespace android {
+
+HDCP::HDCP()
+    : mLibHandle(NULL),
+      mHDCPModule(NULL) {
+    mLibHandle = dlopen("libstagefright_hdcp.so", RTLD_NOW);
+
+    if (mLibHandle == NULL) {
+        ALOGE("Unable to locate libstagefright_hdcp.so");
+        return;
+    }
+
+    typedef HDCPModule *(*CreateHDCPModuleFunc)();
+    CreateHDCPModuleFunc createHDCPModule =
+        (CreateHDCPModuleFunc)dlsym(mLibHandle, "createHDCPModule");
+
+    if (createHDCPModule == NULL) {
+        ALOGE("Unable to find symbol 'createHDCPModule'.");
+    } else if ((mHDCPModule = createHDCPModule()) == NULL) {
+        ALOGE("createHDCPModule failed.");
+    }
+}
+
+HDCP::~HDCP() {
+    if (mHDCPModule != NULL) {
+        delete mHDCPModule;
+        mHDCPModule = NULL;
+    }
+
+    if (mLibHandle != NULL) {
+        dlclose(mLibHandle);
+        mLibHandle = NULL;
+    }
+}
+
+status_t HDCP::setObserver(const sp<IHDCPObserver> &observer) {
+    if (mHDCPModule == NULL) {
+        return NO_INIT;
+    }
+
+    mObserver = observer;
+
+    return OK;
+}
+
+status_t HDCP::initAsync(const char *host, unsigned port) {
+    if (mHDCPModule == NULL) {
+        return NO_INIT;
+    }
+
+    return mHDCPModule->initAsync(host, port);
+}
+
+status_t HDCP::shutdownAsync() {
+    if (mHDCPModule == NULL) {
+        return NO_INIT;
+    }
+
+    return mHDCPModule->shutdownAsync();
+}
+
+status_t HDCP::encrypt(
+        const void *inData, size_t size, uint32_t streamCTR,
+        uint64_t *outInputCTR, void *outData) {
+    if (mHDCPModule == NULL) {
+        *outInputCTR = 0;
+
+        return NO_INIT;
+    }
+
+    return mHDCPModule->encrypt(inData, size, streamCTR, outInputCTR, outData);
+}
+
+}  // namespace android
+