auto import from //depot/cupcake/@135843
diff --git a/media/libmedia/mediametadataretriever.cpp b/media/libmedia/mediametadataretriever.cpp
new file mode 100644
index 0000000..09afc6c
--- /dev/null
+++ b/media/libmedia/mediametadataretriever.cpp
@@ -0,0 +1,188 @@
+/*
+**
+** Copyright 2008, 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 "MediaMetadataRetriever"
+
+#include <utils/IServiceManager.h>
+#include <utils/IPCThreadState.h>
+#include <media/mediametadataretriever.h>
+#include <media/IMediaPlayerService.h>
+#include <utils/Log.h>
+#include <dlfcn.h>
+
+namespace android {
+
+// client singleton for binder interface to service
+Mutex MediaMetadataRetriever::sServiceLock;
+sp<IMediaPlayerService> MediaMetadataRetriever::sService;
+sp<MediaMetadataRetriever::DeathNotifier> MediaMetadataRetriever::sDeathNotifier;
+
+const sp<IMediaPlayerService>& MediaMetadataRetriever::getService()
+{
+ Mutex::Autolock lock(sServiceLock);
+ if (sService.get() == 0) {
+ sp<IServiceManager> sm = defaultServiceManager();
+ sp<IBinder> binder;
+ do {
+ binder = sm->getService(String16("media.player"));
+ if (binder != 0) {
+ break;
+ }
+ LOGW("MediaPlayerService not published, waiting...");
+ usleep(500000); // 0.5 s
+ } while(true);
+ if (sDeathNotifier == NULL) {
+ sDeathNotifier = new DeathNotifier();
+ }
+ binder->linkToDeath(sDeathNotifier);
+ sService = interface_cast<IMediaPlayerService>(binder);
+ }
+ LOGE_IF(sService == 0, "no MediaPlayerService!?");
+ return sService;
+}
+
+MediaMetadataRetriever::MediaMetadataRetriever()
+{
+ LOGV("constructor");
+ const sp<IMediaPlayerService>& service(getService());
+ if (service == 0) {
+ LOGE("failed to obtain MediaMetadataRetrieverService");
+ return;
+ }
+ sp<IMediaMetadataRetriever> retriever(service->createMetadataRetriever(getpid()));
+ if (retriever == 0) {
+ LOGE("failed to create IMediaMetadataRetriever object from server");
+ }
+ mRetriever = retriever;
+}
+
+MediaMetadataRetriever::~MediaMetadataRetriever()
+{
+ LOGV("destructor");
+ disconnect();
+ IPCThreadState::self()->flushCommands();
+}
+
+void MediaMetadataRetriever::disconnect()
+{
+ LOGV("disconnect");
+ sp<IMediaMetadataRetriever> retriever;
+ {
+ Mutex::Autolock _l(mLock);
+ retriever = mRetriever;
+ mRetriever.clear();
+ }
+ if (retriever != 0) {
+ retriever->disconnect();
+ }
+}
+
+status_t MediaMetadataRetriever::setDataSource(const char* srcUrl)
+{
+ LOGV("setDataSource");
+ if (mRetriever == 0) {
+ LOGE("retriever is not initialized");
+ return INVALID_OPERATION;
+ }
+ if (srcUrl == NULL) {
+ LOGE("data source is a null pointer");
+ return UNKNOWN_ERROR;
+ }
+ LOGV("data source (%s)", srcUrl);
+ return mRetriever->setDataSource(srcUrl);
+}
+
+status_t MediaMetadataRetriever::setDataSource(int fd, int64_t offset, int64_t length)
+{
+ LOGV("setDataSource(%d, %lld, %lld)", fd, offset, length);
+ if (mRetriever == 0) {
+ LOGE("retriever is not initialized");
+ return INVALID_OPERATION;
+ }
+ if (fd < 0 || offset < 0 || length < 0) {
+ LOGE("Invalid negative argument");
+ return UNKNOWN_ERROR;
+ }
+ return mRetriever->setDataSource(fd, offset, length);
+}
+
+status_t MediaMetadataRetriever::setMode(int mode)
+{
+ LOGV("setMode(%d)", mode);
+ if (mRetriever == 0) {
+ LOGE("retriever is not initialized");
+ return INVALID_OPERATION;
+ }
+ return mRetriever->setMode(mode);
+}
+
+status_t MediaMetadataRetriever::getMode(int* mode)
+{
+ LOGV("getMode");
+ if (mRetriever == 0) {
+ LOGE("retriever is not initialized");
+ return INVALID_OPERATION;
+ }
+ return mRetriever->getMode(mode);
+}
+
+sp<IMemory> MediaMetadataRetriever::captureFrame()
+{
+ LOGV("captureFrame");
+ if (mRetriever == 0) {
+ LOGE("retriever is not initialized");
+ return NULL;
+ }
+ return mRetriever->captureFrame();
+}
+
+const char* MediaMetadataRetriever::extractMetadata(int keyCode)
+{
+ LOGV("extractMetadata(%d)", keyCode);
+ if (mRetriever == 0) {
+ LOGE("retriever is not initialized");
+ return NULL;
+ }
+ return mRetriever->extractMetadata(keyCode);
+}
+
+sp<IMemory> MediaMetadataRetriever::extractAlbumArt()
+{
+ LOGV("extractAlbumArt");
+ if (mRetriever == 0) {
+ LOGE("retriever is not initialized");
+ return NULL;
+ }
+ return mRetriever->extractAlbumArt();
+}
+
+void MediaMetadataRetriever::DeathNotifier::binderDied(const wp<IBinder>& who) {
+ Mutex::Autolock lock(MediaMetadataRetriever::sServiceLock);
+ MediaMetadataRetriever::sService.clear();
+ LOGW("MediaMetadataRetriever server died!");
+}
+
+MediaMetadataRetriever::DeathNotifier::~DeathNotifier()
+{
+ Mutex::Autolock lock(sServiceLock);
+ if (sService != 0) {
+ sService->asBinder()->unlinkToDeath(this);
+ }
+}
+
+}; // namespace android