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105 lines
3.3 KiB
105 lines
3.3 KiB
/*
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* Copyright 2018, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "StagefrightPluginLoader"
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#include <utils/Log.h>
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#include <android-base/properties.h>
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#include <dlfcn.h>
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#include "StagefrightPluginLoader.h"
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namespace android {
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/* static */ Mutex StagefrightPluginLoader::sMutex;
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/* static */ std::unique_ptr<StagefrightPluginLoader> StagefrightPluginLoader::sInstance;
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namespace /* unnamed */ {
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constexpr const char kCCodecPluginPath[] = "libsfplugin_ccodec.so";
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} // unnamed namespace
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StagefrightPluginLoader::StagefrightPluginLoader(const char *libPath) {
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if (android::base::GetIntProperty("debug.stagefright.ccodec", 1) == 0) {
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ALOGD("CCodec is disabled.");
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return;
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}
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mLibHandle = dlopen(libPath, RTLD_NOW | RTLD_NODELETE);
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if (mLibHandle == nullptr) {
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ALOGD("Failed to load library: %s (%s)", libPath, dlerror());
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return;
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}
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mCreateCodec = (CodecBase::CreateCodecFunc)dlsym(mLibHandle, "CreateCodec");
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if (mCreateCodec == nullptr) {
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ALOGD("Failed to find symbol: CreateCodec (%s)", dlerror());
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}
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mCreateBuilder = (MediaCodecListBuilderBase::CreateBuilderFunc)dlsym(
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mLibHandle, "CreateBuilder");
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if (mCreateBuilder == nullptr) {
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ALOGD("Failed to find symbol: CreateBuilder (%s)", dlerror());
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}
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mCreateInputSurface = (CodecBase::CreateInputSurfaceFunc)dlsym(
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mLibHandle, "CreateInputSurface");
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if (mCreateInputSurface == nullptr) {
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ALOGD("Failed to find symbol: CreateInputSurface (%s)", dlerror());
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}
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}
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StagefrightPluginLoader::~StagefrightPluginLoader() {
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if (mLibHandle != nullptr) {
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ALOGV("Closing handle");
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dlclose(mLibHandle);
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}
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}
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CodecBase *StagefrightPluginLoader::createCodec() {
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if (mLibHandle == nullptr || mCreateCodec == nullptr) {
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ALOGD("Handle or CreateCodec symbol is null");
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return nullptr;
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}
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return mCreateCodec();
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}
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MediaCodecListBuilderBase *StagefrightPluginLoader::createBuilder() {
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if (mLibHandle == nullptr || mCreateBuilder == nullptr) {
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ALOGD("Handle or CreateBuilder symbol is null");
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return nullptr;
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}
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return mCreateBuilder();
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}
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PersistentSurface *StagefrightPluginLoader::createInputSurface() {
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if (mLibHandle == nullptr || mCreateInputSurface == nullptr) {
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ALOGD("Handle or CreateInputSurface symbol is null");
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return nullptr;
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}
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return mCreateInputSurface();
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}
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//static
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const std::unique_ptr<StagefrightPluginLoader> &StagefrightPluginLoader::GetCCodecInstance() {
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Mutex::Autolock _l(sMutex);
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if (!sInstance) {
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ALOGV("Loading library");
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sInstance.reset(new StagefrightPluginLoader(kCCodecPluginPath));
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}
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return sInstance;
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}
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} // namespace android
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