1 /**
2 * Copyright (C) 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 #include <dlfcn.h>
17 #include <sys/types.h>
18 #include <media/DataSource.h>
19 #include <datasource/FileSource.h>
20 #include <media/stagefright/MediaExtractor.h>
21 #include <android/IMediaExtractor.h>
22 #include <media/stagefright/DataSourceBase.h>
23 #include <media/stagefright/MetaData.h>
24 #include "../includes/common.h"
25 #define LIBNAME "/system/lib64/extractors/libmp4extractor.so"
26 #define LIBNAME_APEX "/apex/com.android.media/lib64/extractors/libmp4extractor.so"
27
operator new(size_t size)28 void * operator new(size_t size) {
29 if (size > 64 * 1024 * 1024) {
30 exit (EXIT_VULNERABLE);
31 }
32 return malloc(size);
33 }
34
35 using namespace android;
36
main(int argc,char ** argv)37 int main(int argc, char **argv) {
38 (void) argc;
39 (void) argv;
40 #if _64_BIT
41 GetExtractorDef getDef = nullptr;
42 if (argc < 2) {
43 return EXIT_FAILURE;
44 }
45
46 void *libHandle = dlopen(LIBNAME, RTLD_NOW | RTLD_LOCAL);
47 if (!libHandle) {
48 libHandle = dlopen(LIBNAME_APEX, RTLD_NOW | RTLD_LOCAL);
49 if (!libHandle) {
50 return EXIT_FAILURE;
51 }
52 }
53
54 getDef = (GetExtractorDef)dlsym(libHandle, "GETEXTRACTORDEF");
55 if (!getDef) {
56 dlclose(libHandle);
57 return EXIT_FAILURE;
58 }
59
60 sp < DataSource > dataSource = new FileSource(argv[1]);
61 if (dataSource == nullptr) {
62 dlclose(libHandle);
63 return EXIT_FAILURE;
64 }
65
66 void *meta = nullptr;
67 void* creator = nullptr;
68 FreeMetaFunc freeMeta = nullptr;
69 float confidence;
70 if (getDef().def_version == EXTRACTORDEF_VERSION_NDK_V1) {
71 creator = (void*) getDef().u.v2.sniff(dataSource->wrap(), &confidence,
72 &meta, &freeMeta);
73 } else if (getDef().def_version == EXTRACTORDEF_VERSION_NDK_V2) {
74 creator = (void*) getDef().u.v3.sniff(dataSource->wrap(), &confidence,
75 &meta, &freeMeta);
76 }
77 if (!creator) {
78 dlclose(libHandle);
79 return EXIT_FAILURE;
80 }
81
82 CMediaExtractor *ret = ((CreatorFunc) creator)(dataSource->wrap(), meta);
83 if (ret == nullptr) {
84 dlclose(libHandle);
85 return EXIT_FAILURE;
86 }
87
88 if (meta != nullptr && freeMeta != nullptr) {
89 freeMeta(meta);
90 }
91
92 MediaExtractorCUnwrapper *mediaExtractorCUnwrapper =
93 new MediaExtractorCUnwrapper(ret);
94 MediaTrack* source = mediaExtractorCUnwrapper->getTrack(0);
95 if (source == nullptr) {
96 dlclose(libHandle);
97 return EXIT_FAILURE;
98 }
99
100 source->start();
101
102 dlclose(libHandle);
103 #endif /* _64_BIT */
104 return EXIT_SUCCESS;
105 }
106