| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef MEDIA_FILTERS_FILE_DATA_SOURCE_H_ |
| #define MEDIA_FILTERS_FILE_DATA_SOURCE_H_ |
| |
| #include <stdint.h> |
| |
| #include "base/compiler_specific.h" |
| #include "base/files/file.h" |
| #include "base/files/file_path.h" |
| #include "base/files/memory_mapped_file.h" |
| #include "base/macros.h" |
| #include "media/base/data_source.h" |
| |
| namespace media { |
| |
| // Basic data source that treats the URL as a file path, and uses the file |
| // system to read data for a media pipeline. |
| class MEDIA_EXPORT FileDataSource : public DataSource { |
| public: |
| FileDataSource(); |
| |
| FileDataSource(const FileDataSource&) = delete; |
| FileDataSource& operator=(const FileDataSource&) = delete; |
| |
| ~FileDataSource() override; |
| |
| bool Initialize(const base::FilePath& file_path) WARN_UNUSED_RESULT; |
| bool Initialize(base::File file) WARN_UNUSED_RESULT; |
| |
| // Implementation of DataSource. |
| void Stop() override; |
| void Abort() override; |
| void Read(int64_t position, |
| int size, |
| uint8_t* data, |
| DataSource::ReadCB read_cb) override; |
| bool GetSize(int64_t* size_out) override WARN_UNUSED_RESULT; |
| bool IsStreaming() override; |
| void SetBitrate(int bitrate) override; |
| |
| // Unit test helpers. Recreate the object if you want the default behaviour. |
| void force_read_errors_for_testing() { force_read_errors_ = true; } |
| void force_streaming_for_testing() { force_streaming_ = true; } |
| uint64_t bytes_read_for_testing() { return bytes_read_; } |
| void reset_bytes_read_for_testing() { bytes_read_ = 0; } |
| |
| private: |
| base::MemoryMappedFile file_; |
| |
| bool force_read_errors_; |
| bool force_streaming_; |
| uint64_t bytes_read_; |
| }; |
| |
| } // namespace media |
| |
| #endif // MEDIA_FILTERS_FILE_DATA_SOURCE_H_ |