1 /* 2 * Copyright (c) 2021-2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef HISTREAMER_PLUGIN_CORE_DEMUXER_H 17 #define HISTREAMER_PLUGIN_CORE_DEMUXER_H 18 19 #include <memory> 20 21 #include "base.h" 22 #include "common/plugin_buffer.h" 23 #include "core/plugin_meta.h" 24 25 namespace OHOS { 26 namespace Media { 27 namespace Plugin { 28 using AllocatorHelper = Allocator; 29 30 struct MediaInfoHelper { 31 Meta globalMeta; 32 std::vector<Meta> trackMeta; 33 }; 34 35 struct DataSourceHelper { 36 virtual ~DataSourceHelper() = default; 37 virtual Status ReadAt(int64_t offset, std::shared_ptr<Buffer> &buffer, size_t expectedLen) = 0; 38 virtual Status GetSize(size_t &size) = 0; 39 }; 40 41 struct DemuxerPlugin; 42 43 class Demuxer : public Base { 44 public: 45 Demuxer(const Demuxer &) = delete; 46 Demuxer operator=(const Demuxer &) = delete; 47 ~Demuxer() override = default; 48 49 Status SeekTo(int32_t trackId, int64_t hstTime, SeekMode mode); 50 51 Status SetDataSource(const std::shared_ptr<DataSourceHelper> &source); 52 53 Status GetMediaInfo(MediaInfoHelper &mediaInfo); 54 55 Status ReadFrame(Buffer &info, int32_t timeOutMs); 56 57 private: 58 friend class PluginManager; 59 60 Demuxer(uint32_t pkgVer, uint32_t apiVer, std::shared_ptr<DemuxerPlugin> plugin); 61 62 private: 63 std::shared_ptr<DemuxerPlugin> demuxer_; 64 }; 65 } // namespace Plugin 66 } // namespace Media 67 } // namespace OHOS 68 #endif // HISTREAMER_PLUGIN_CORE_DEMUXER_H 69