Merge "libmediandk: use libandroid_runtime_lazy" (5179951a) · Commits · e / os / android_frameworks_av

media/ndk/Android.bp

+1 −0

Original line number	Diff line number	Diff line
		@@ -65,6 +65,7 @@ cc_library_shared {
		],

		shared_libs: [
		"libandroid_runtime_lazy",
		"libbinder",
		"libmedia",
		"libmedia_omx",

media/ndk/NdkMediaExtractor.cpp

+3 −60

Original line number	Diff line number	Diff line
		@@ -33,70 +33,13 @@
		#include <media/stagefright/MetaData.h>
		#include <media/stagefright/NuMediaExtractor.h>
		#include <media/IMediaHTTPService.h>
		#include <android_runtime/AndroidRuntime.h>
		#include <android_util_Binder.h>

		#include <jni.h>

		#include <mutex> // std::call_once,once_flag
		#include <dlfcn.h> // dlopen

		using namespace android;

		// load libandroid_runtime.so lazily.
		// A vendor process may use libmediandk but should not depend on libandroid_runtime.
		// TODO(jooyung): remove duplicate (b/125550121)
		// frameworks/native/libs/binder/ndk/ibinder_jni.cpp
		namespace {

		typedef JNIEnv* (*getJNIEnv_t)();
		typedef sp<IBinder> (ibinderForJavaObject_t)(JNIEnv env, jobject obj);

		getJNIEnv_t getJNIEnv_;
		ibinderForJavaObject_t ibinderForJavaObject_;

		std::once_flag mLoadFlag;

		void load() {
		std::call_once(mLoadFlag, []() {
		void* handle = dlopen("libandroid_runtime.so", RTLD_LAZY);
		if (handle == nullptr) {
		ALOGE("Could not open libandroid_runtime.");
		return;
		}

		getJNIEnv_ = reinterpret_cast<getJNIEnv_t>(
		dlsym(handle, "_ZN7android14AndroidRuntime9getJNIEnvEv"));
		if (getJNIEnv_ == nullptr) {
		ALOGE("Could not find AndroidRuntime::getJNIEnv.");
		// no return
		}

		ibinderForJavaObject_ = reinterpret_cast<ibinderForJavaObject_t>(
		dlsym(handle, "_ZN7android20ibinderForJavaObjectEP7_JNIEnvP8_jobject"));
		if (ibinderForJavaObject_ == nullptr) {
		ALOGE("Could not find ibinderForJavaObject.");
		// no return
		}
		});
		}

		JNIEnv* getJNIEnv() {
		load();
		if (getJNIEnv_ == nullptr) {
		return nullptr;
		}
		return (getJNIEnv_)();
		}

		sp<IBinder> ibinderForJavaObject(JNIEnv* env, jobject obj) {
		load();
		if (ibinderForJavaObject_ == nullptr) {
		return nullptr;
		}
		return (ibinderForJavaObject_)(env, obj);
		}

		} // namespace

		static media_status_t translate_error(status_t err) {
		if (err == OK) {
		return AMEDIA_OK;
		@@ -144,7 +87,7 @@ media_status_t AMediaExtractor_setDataSource(AMediaExtractor *mData, const char
		ALOGV("setDataSource(%s)", location);
		// TODO: add header support

		JNIEnv *env = getJNIEnv();
		JNIEnv *env = AndroidRuntime::getJNIEnv();
		jobject service = NULL;
		if (env == NULL) {
		ALOGE("setDataSource(path) must be called from Java thread");