Extractor service
Run extractors in a separate process. Currently all data is copied through a
binder transaction, and WVMExtractor is still run in the mediaserver process.
Change-Id: Ic5dbce87126dd321ad792f4dd540c2ff6b068d13
diff --git a/media/libmedia/IMediaExtractorService.cpp b/media/libmedia/IMediaExtractorService.cpp
new file mode 100644
index 0000000..51a3c1a
--- /dev/null
+++ b/media/libmedia/IMediaExtractorService.cpp
@@ -0,0 +1,81 @@
+/*
+**
+** Copyright 2007, 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_TAG "IMediaExtractorService"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <binder/Parcel.h>
+#include <media/IMediaExtractorService.h>
+
+namespace android {
+
+enum {
+ MAKE_EXTRACTOR = IBinder::FIRST_CALL_TRANSACTION
+};
+
+class BpMediaExtractorService : public BpInterface<IMediaExtractorService>
+{
+public:
+ BpMediaExtractorService(const sp<IBinder>& impl)
+ : BpInterface<IMediaExtractorService>(impl)
+ {
+ }
+
+ virtual sp<IMediaExtractor> makeExtractor(const sp<IDataSource> &source, const char *mime) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IMediaExtractorService::getInterfaceDescriptor());
+ data.writeStrongBinder(IInterface::asBinder(source));
+ if (mime != NULL) {
+ data.writeCString(mime);
+ }
+ status_t ret = remote()->transact(MAKE_EXTRACTOR, data, &reply);
+ if (ret == NO_ERROR) {
+ return interface_cast<IMediaExtractor>(reply.readStrongBinder());
+ }
+ return NULL;
+ }
+
+};
+
+IMPLEMENT_META_INTERFACE(MediaExtractorService, "android.media.IMediaExtractorService");
+
+// ----------------------------------------------------------------------
+
+status_t BnMediaExtractorService::onTransact(
+ uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+ switch (code) {
+
+ case MAKE_EXTRACTOR: {
+ CHECK_INTERFACE(IMediaExtractorService, data, reply);
+ sp<IDataSource> source = interface_cast<IDataSource>(data.readStrongBinder());
+ const char *mime = data.readCString();
+ sp<IMediaExtractor> ex = makeExtractor(source, mime);
+ reply->writeStrongBinder(IInterface::asBinder(ex));
+ return NO_ERROR;
+ }
+ default:
+ return BBinder::onTransact(code, data, reply, flags);
+ }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android