codec2: add filter plugin interface & wrapper implementation (09a62c6b) · Commits · e / os / android_frameworks_av

media/codec2/hidl/plugin/Android.bp

0 → 100644

+66 −0

Original line number	Diff line number	Diff line
		cc_library_headers {
		name: "libcodec2_hidl_plugin_headers",
		vendor_available: true,
		export_include_dirs: [
		"include",
		],
		}

		cc_library {
		name: "libcodec2_hidl_plugin_stub",

		srcs: [
		"DefaultFilterPlugin.cpp",
		"FilterWrapperStub.cpp",
		],

		header_libs: [
		"libcodec2_internal", // private
		],

		shared_libs: [
		"libbase",
		"libcodec2",
		"libcodec2_vndk",
		"liblog",
		"libutils",
		],

		export_include_dirs: [
		"include",
		"internal",
		],

		apex_available: [
		"//apex_available:platform",
		"com.android.media.swcodec",
		],
		min_sdk_version: "29",
		}

		cc_library {
		name: "libcodec2_hidl_plugin",
		vendor: true,

		srcs: [
		"DefaultFilterPlugin.cpp",
		"FilterWrapper.cpp",
		],

		header_libs: [
		"libcodec2_internal", // private
		],

		shared_libs: [
		"libbase",
		"libcodec2",
		"libcodec2_vndk",
		"liblog",
		"libutils",
		],

		export_include_dirs: [
		"include",
		"internal",
		],
		}

media/codec2/hidl/plugin/DefaultFilterPlugin.cpp

0 → 100644

+108 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright 2020 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 "Codec2-DefaultFilterPlugin"
		#include <android-base/logging.h>

		#include <set>

		#include <dlfcn.h>

		#include <C2Config.h>
		#include <C2Debug.h>
		#include <C2ParamInternal.h>

		#include <codec2/hidl/plugin/FilterPlugin.h>

		#include <DefaultFilterPlugin.h>
		#include <FilterWrapper.h>

		namespace android {

		DefaultFilterPlugin::DefaultFilterPlugin(const char *pluginPath)
		: mInit(NO_INIT),
		mHandle(nullptr),
		mDestroyPlugin(nullptr),
		mPlugin(nullptr) {
		mHandle = dlopen(pluginPath, RTLD_NOW \| RTLD_NODELETE);
		if (!mHandle) {
		LOG(DEBUG) << "FilterPlugin: no plugin detected";
		return;
		}
		GetFilterPluginVersionFunc getVersion =
		(GetFilterPluginVersionFunc)dlsym(mHandle, "GetFilterPluginVersion");
		if (!getVersion) {
		LOG(WARNING) << "FilterPlugin: GetFilterPluginVersion undefined";
		return;
		}
		int32_t version = getVersion();
		if (version != FilterPlugin_V1::VERSION) {
		LOG(WARNING) << "FilterPlugin: unrecognized version (" << version << ")";
		return;
		}
		CreateFilterPluginFunc createPlugin =
		(CreateFilterPluginFunc)dlsym(mHandle, "CreateFilterPlugin");
		if (!createPlugin) {
		LOG(WARNING) << "FilterPlugin: CreateFilterPlugin undefined";
		return;
		}
		mDestroyPlugin =
		(DestroyFilterPluginFunc)dlsym(mHandle, "DestroyFilterPlugin");
		if (!mDestroyPlugin) {
		LOG(WARNING) << "FilterPlugin: DestroyFilterPlugin undefined";
		return;
		}
		mPlugin = (FilterPlugin_V1 *)createPlugin();
		if (!mPlugin) {
		LOG(WARNING) << "FilterPlugin: CreateFilterPlugin returned nullptr";
		return;
		}
		mStore = mPlugin->getComponentStore();
		if (!mStore) {
		LOG(WARNING) << "FilterPlugin: FilterPlugin_V1::getComponentStore returned nullptr";
		return;
		}
		mInit = OK;
		}

		DefaultFilterPlugin::~DefaultFilterPlugin() {
		if (mHandle) {
		if (mDestroyPlugin && mPlugin) {
		mDestroyPlugin(mPlugin);
		mPlugin = nullptr;
		}
		dlclose(mHandle);
		mHandle = nullptr;
		mDestroyPlugin = nullptr;
		}
		}

		bool DefaultFilterPlugin::describe(C2String name, FilterWrapper::Descriptor *desc) {
		if (mInit != OK) {
		return false;
		}
		return mPlugin->describe(name, desc);
		}

		bool DefaultFilterPlugin::isFilteringEnabled(const std::shared_ptr<C2ComponentInterface> &intf) {
		if (mInit != OK) {
		return false;
		}
		return mPlugin->isFilteringEnabled(intf);
		}

		} // namespace android