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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 <string>
#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();
explicit FileDataSource(base::File file);
~FileDataSource() override;
bool Initialize(const base::FilePath& file_path);
// Implementation of DataSource.
void Stop() override;
void Read(int64_t position,
int size,
uint8_t* data,
const DataSource::ReadCB& read_cb) override;
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_;
DISALLOW_COPY_AND_ASSIGN(FileDataSource);
};
} // namespace media
#endif // MEDIA_FILTERS_FILE_DATA_SOURCE_H_
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