Merge Chromium + Blink git repositories
[chromium-blink-merge.git] / media / filters / file_data_source.h
blobebffee59d9eeb82de850db9d3b69503ceef78371
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef MEDIA_FILTERS_FILE_DATA_SOURCE_H_
6 #define MEDIA_FILTERS_FILE_DATA_SOURCE_H_
8 #include <string>
10 #include "base/files/file.h"
11 #include "base/files/file_path.h"
12 #include "base/files/memory_mapped_file.h"
13 #include "media/base/data_source.h"
15 namespace media {
17 // Basic data source that treats the URL as a file path, and uses the file
18 // system to read data for a media pipeline.
19 class MEDIA_EXPORT FileDataSource : public DataSource {
20 public:
21 FileDataSource();
22 explicit FileDataSource(base::File file);
23 ~FileDataSource() override;
25 bool Initialize(const base::FilePath& file_path);
27 // Implementation of DataSource.
28 void Stop() override;
29 void Read(int64 position,
30 int size,
31 uint8* data,
32 const DataSource::ReadCB& read_cb) override;
33 bool GetSize(int64* size_out) override;
34 bool IsStreaming() override;
35 void SetBitrate(int bitrate) override;
37 // Unit test helpers. Recreate the object if you want the default behaviour.
38 void force_read_errors_for_testing() { force_read_errors_ = true; }
39 void force_streaming_for_testing() { force_streaming_ = true; }
41 private:
42 base::MemoryMappedFile file_;
44 bool force_read_errors_;
45 bool force_streaming_;
47 DISALLOW_COPY_AND_ASSIGN(FileDataSource);
50 } // namespace media
52 #endif // MEDIA_FILTERS_FILE_DATA_SOURCE_H_