1 /* 2 * Copyright (C) 2017 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 17 #ifndef MEDIA_EXTRACTOR_FACTORY_H_ 18 19 #define MEDIA_EXTRACTOR_FACTORY_H_ 20 21 #include <stdio.h> 22 #include <unordered_set> 23 24 #include <android/dlext.h> 25 #include <android/IMediaExtractor.h> 26 27 namespace android { 28 29 class DataSource; 30 struct ExtractorPlugin; 31 32 class MediaExtractorFactory { 33 public: 34 static sp<IMediaExtractor> Create( 35 const sp<DataSource> &source, const char *mime = NULL); 36 static sp<IMediaExtractor> CreateFromService( 37 const sp<DataSource> &source, const char *mime = NULL); 38 static status_t dump(int fd, const Vector<String16>& args); 39 static std::vector<std::string> getSupportedTypes(); 40 static void LoadExtractors(); 41 42 private: 43 static Mutex gPluginMutex; 44 static std::shared_ptr<std::list<sp<ExtractorPlugin>>> gPlugins; 45 static bool gPluginsRegistered; 46 static bool gIgnoreVersion; 47 48 static void RegisterExtractors( 49 const char *libDirPath, const android_dlextinfo* dlextinfo, 50 std::list<sp<ExtractorPlugin>> &pluginList); 51 static void RegisterExtractor( 52 const sp<ExtractorPlugin> &plugin, std::list<sp<ExtractorPlugin>> &pluginList); 53 54 static void *sniff(const sp<DataSource> &source, 55 float *confidence, void **meta, FreeMetaFunc *freeMeta, 56 sp<ExtractorPlugin> &plugin, uint32_t *creatorVersion); 57 }; 58 59 } // namespace android 60 61 #endif // MEDIA_EXTRACTOR_FACTORY_H_ 62