| // Copyright 2022 The Cobalt Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef COBALT_MEDIA_FILE_DATA_SOURCE_H_ |
| #define COBALT_MEDIA_FILE_DATA_SOURCE_H_ |
| |
| #include "base/files/file.h" |
| #include "cobalt/media/base/data_source.h" |
| #include "url/gurl.h" |
| |
| namespace cobalt { |
| namespace media { |
| |
| // A file based DataSource used to retrieve progressive videos from local files. |
| // The class is for testing purposes only, and shouldn't be used in production |
| // environment. |
| // Its member functions can be called from multiple threads. However, this |
| // class doesn't synchronize the calls. It's the responsibility of its user to |
| // ensure that such calls are synchronized. |
| class FileDataSource : public DataSource { |
| public: |
| static constexpr int64 kInvalidSize = -1; |
| |
| explicit FileDataSource(const GURL& file_url); |
| |
| // DataSource methods. |
| void Read(int64 position, int size, uint8* data, |
| const ReadCB& read_cb) override; |
| void Stop() override {} |
| void Abort() override {} |
| bool GetSize(int64* size_out) override; |
| void SetDownloadingStatusCB( |
| const DownloadingStatusCB& downloading_status_cb) override {} |
| |
| private: |
| base::File file_; |
| }; |
| |
| } // namespace media |
| } // namespace cobalt |
| |
| #endif // COBALT_MEDIA_FILE_DATA_SOURCE_H_ |