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130 lines
3.5 KiB
130 lines
3.5 KiB
/**
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* Copyright (C) 2020 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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#include <IMediaExtractor.h>
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#include <dlfcn.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include "../includes/common.h"
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#include "../includes/memutils.h"
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#if _32_BIT
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#define LIBNAME "/system/lib/extractors/libmidiextractor.so"
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#define LIBNAME_APEX \
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"/apex/com.android.media/lib/extractors/libmidiextractor.so"
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#elif _64_BIT
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#define LIBNAME "/system/lib64/extractors/libmidiextractor.so"
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#define LIBNAME_APEX \
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"/apex/com.android.media/lib64/extractors/libmidiextractor.so"
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#endif
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char enable_selective_overload = ENABLE_NONE;
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using namespace android;
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class XMFDataSource : public DataSource {
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public:
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int mFdData;
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int mFdInfo;
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XMFDataSource(int fdData, int fdInfo) {
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mFdData = fdData;
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mFdInfo = fdInfo;
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}
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~XMFDataSource() = default;
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virtual ssize_t readAt(off64_t offset __attribute__((unused)), void *data,
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size_t size) {
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uint32_t infoOffset, infoSize;
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read(mFdInfo, &infoSize, sizeof(int32_t));
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read(mFdInfo, &infoOffset, sizeof(int32_t));
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lseek(mFdData, infoOffset, SEEK_SET);
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read(mFdData, data, infoSize);
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return size;
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}
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virtual status_t getSize(off64_t *size) {
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*size = 0x10000;
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return 0;
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}
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virtual status_t initCheck() const { return 0; }
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};
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void close_resources(int fdData, int fdInfo, void *libHandle) {
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if (fdData >= 0) {
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::close(fdData);
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}
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if (fdInfo >= 0) {
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::close(fdInfo);
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}
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if (libHandle) {
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dlclose(libHandle);
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}
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}
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int main(int argc, char **argv) {
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if (argc < 3) {
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return EXIT_FAILURE;
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}
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enable_selective_overload = ENABLE_ALL;
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void *libHandle = dlopen(LIBNAME, RTLD_NOW | RTLD_LOCAL);
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if (!libHandle) {
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libHandle = dlopen(LIBNAME_APEX, RTLD_NOW | RTLD_LOCAL);
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if (!libHandle) {
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return EXIT_FAILURE;
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}
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}
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GetExtractorDef getDef = (GetExtractorDef)dlsym(libHandle, "GETEXTRACTORDEF");
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if (!getDef) {
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dlclose(libHandle);
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return EXIT_FAILURE;
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}
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int fdData = open(argv[1], O_RDONLY);
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if (fdData < 0) {
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dlclose(libHandle);
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return EXIT_FAILURE;
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}
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int fdInfo = open(argv[2], O_RDONLY);
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if (fdInfo < 0) {
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close_resources(fdData, fdInfo, libHandle);
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return EXIT_FAILURE;
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}
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sp<DataSource> dataSource = (sp<DataSource>)new XMFDataSource(fdData, fdInfo);
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if (!dataSource) {
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close_resources(fdData, fdInfo, libHandle);
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return EXIT_FAILURE;
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}
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void *meta = nullptr;
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FreeMetaFunc freeMeta = nullptr;
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float confidence = 0.0f;
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if (getDef().def_version == EXTRACTORDEF_VERSION_NDK_V1) {
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getDef().u.v2.sniff(dataSource->wrap(), &confidence, &meta, &freeMeta);
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} else if (getDef().def_version == EXTRACTORDEF_VERSION_NDK_V2) {
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getDef().u.v3.sniff(dataSource->wrap(), &confidence, &meta, &freeMeta);
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}
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close_resources(fdData, fdInfo, libHandle);
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enable_selective_overload = ENABLE_NONE;
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return EXIT_SUCCESS;
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}
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