Split datasource out of libstagefright

into libdatasource, which contains:
  DataSourceFactory
  (Clear)FileSource
  (Clear)MediaHTTP
  DataURISource
  HTTPBase
  NuCachedSource2

This is needed to break a circular dependency in an upcoming CL.

Test: build, boot

Change-Id: I34d9937235c78f18f51b18945342a0743e209577
Merged-In: I34d9937235c78f18f51b18945342a0743e209577
diff --git a/media/libdatasource/MediaHTTP.cpp b/media/libdatasource/MediaHTTP.cpp
new file mode 100644
index 0000000..e57510d
--- /dev/null
+++ b/media/libdatasource/MediaHTTP.cpp
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2013 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 "MediaHTTP"
+#include <utils/Log.h>
+
+#include <datasource/MediaHTTP.h>
+
+#include <binder/IServiceManager.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/ALooper.h>
+#include <media/stagefright/FoundationUtils.h>
+
+#include <media/MediaHTTPConnection.h>
+
+namespace android {
+
+MediaHTTP::MediaHTTP(const sp<MediaHTTPConnection> &conn)
+    : ClearMediaHTTP(conn),
+      mDrmManagerClient(NULL) {
+}
+
+MediaHTTP::~MediaHTTP() {
+    clearDRMState_l();
+}
+
+// DRM...
+
+sp<DecryptHandle> MediaHTTP::DrmInitialization(const char* mime) {
+    if (mDrmManagerClient == NULL) {
+        mDrmManagerClient = new DrmManagerClient();
+    }
+
+    if (mDrmManagerClient == NULL) {
+        return NULL;
+    }
+
+    if (mDecryptHandle == NULL) {
+        mDecryptHandle = mDrmManagerClient->openDecryptSession(
+                String8(mLastURI.c_str()), mime);
+    }
+
+    if (mDecryptHandle == NULL) {
+        delete mDrmManagerClient;
+        mDrmManagerClient = NULL;
+    }
+
+    return mDecryptHandle;
+}
+
+void MediaHTTP::clearDRMState_l() {
+    if (mDecryptHandle != NULL) {
+        // To release mDecryptHandle
+        CHECK(mDrmManagerClient);
+        mDrmManagerClient->closeDecryptSession(mDecryptHandle);
+        mDecryptHandle = NULL;
+    }
+}
+
+}  // namespace android