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- // 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/files/file.h"
- #include "base/files/file_path.h"
- #include "base/files/memory_mapped_file.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;
- [[nodiscard]] bool Initialize(const base::FilePath& file_path);
- [[nodiscard]] bool Initialize(base::File file);
- // Implementation of DataSource.
- void Stop() override;
- void Abort() override;
- void Read(int64_t position,
- int size,
- uint8_t* data,
- DataSource::ReadCB read_cb) override;
- [[nodiscard]] bool GetSize(int64_t* size_out) override;
- 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_
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