MediaCas: add MediaCasService
This CL adds API only without implementation.
bug: 22804304
Change-Id: Ibb5a29cc616ec0af81957b2bfe1419c482591753
diff --git a/drm/libmediadrm/DescramblerImpl.cpp b/drm/libmediadrm/DescramblerImpl.cpp
new file mode 100644
index 0000000..94e09e2
--- /dev/null
+++ b/drm/libmediadrm/DescramblerImpl.cpp
@@ -0,0 +1,107 @@
+
+/*
+ * Copyright (C) 2017 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 "DescramblerImpl"
+
+#include <media/cas/DescramblerAPI.h>
+#include <media/DescramblerImpl.h>
+#include <media/SharedLibrary.h>
+#include <utils/Log.h>
+#include <binder/IMemory.h>
+
+namespace android {
+
+static Status getBinderStatus(status_t err) {
+ if (err == OK) {
+ return Status::ok();
+ }
+ if (err == BAD_VALUE) {
+ return Status::fromExceptionCode(Status::EX_ILLEGAL_ARGUMENT);
+ }
+ if (err == INVALID_OPERATION) {
+ return Status::fromExceptionCode(Status::EX_ILLEGAL_STATE);
+ }
+ return Status::fromServiceSpecificError(err);
+}
+
+static String8 sessionIdToString(const CasSessionId &sessionId) {
+ String8 result;
+ for (size_t i = 0; i < sessionId.size(); i++) {
+ result.appendFormat("%02x ", sessionId[i]);
+ }
+ if (result.isEmpty()) {
+ result.append("(null)");
+ }
+ return result;
+}
+
+DescramblerImpl::DescramblerImpl(
+ const sp<SharedLibrary>& library, DescramblerPlugin *plugin) :
+ mLibrary(library), mPlugin(plugin) {
+ ALOGV("CTOR: mPlugin=%p", mPlugin);
+}
+
+DescramblerImpl::~DescramblerImpl() {
+ ALOGV("DTOR: mPlugin=%p", mPlugin);
+ release();
+}
+
+Status DescramblerImpl::setMediaCasSession(const CasSessionId& sessionId) {
+ ALOGV("setMediaCasSession: sessionId=%s",
+ sessionIdToString(sessionId).string());
+
+ return getBinderStatus(mPlugin->setMediaCasSession(sessionId));
+}
+
+Status DescramblerImpl::requiresSecureDecoderComponent(
+ const String16& mime, bool *result) {
+ *result = mPlugin->requiresSecureDecoderComponent(String8(mime));
+
+ return getBinderStatus(OK);
+}
+
+Status DescramblerImpl::descramble(
+ const DescrambleInfo& info, int32_t *result) {
+ ALOGV("descramble");
+
+ *result = mPlugin->descramble(
+ info.dstType != DescrambleInfo::kDestinationTypeVmPointer,
+ info.scramblingControl,
+ info.numSubSamples,
+ info.subSamples,
+ info.srcMem->pointer(),
+ info.srcOffset,
+ info.dstType == DescrambleInfo::kDestinationTypeVmPointer ?
+ info.srcMem->pointer() : info.dstPtr,
+ info.dstOffset,
+ NULL);
+
+ return getBinderStatus(*result >= 0 ? OK : *result);
+}
+
+Status DescramblerImpl::release() {
+ ALOGV("release: mPlugin=%p", mPlugin);
+
+ if (mPlugin != NULL) {
+ delete mPlugin;
+ mPlugin = NULL;
+ }
+ return Status::ok();
+}
+
+} // namespace android
+