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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MEDIA_FILTERS_FILE_DATA_SOURCE_H_ | 5 #ifndef MEDIA_FILTERS_FILE_DATA_SOURCE_H_ |
6 #define MEDIA_FILTERS_FILE_DATA_SOURCE_H_ | 6 #define MEDIA_FILTERS_FILE_DATA_SOURCE_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/gtest_prod_util.h" | 10 #include "base/gtest_prod_util.h" |
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26 // Implementation of DataSource. | 26 // Implementation of DataSource. |
27 virtual void set_host(DataSourceHost* host) OVERRIDE; | 27 virtual void set_host(DataSourceHost* host) OVERRIDE; |
28 virtual void Stop(const base::Closure& callback) OVERRIDE; | 28 virtual void Stop(const base::Closure& callback) OVERRIDE; |
29 virtual void Read(int64 position, int size, uint8* data, | 29 virtual void Read(int64 position, int size, uint8* data, |
30 const DataSource::ReadCB& read_cb) OVERRIDE; | 30 const DataSource::ReadCB& read_cb) OVERRIDE; |
31 virtual bool GetSize(int64* size_out) OVERRIDE; | 31 virtual bool GetSize(int64* size_out) OVERRIDE; |
32 virtual bool IsStreaming() OVERRIDE; | 32 virtual bool IsStreaming() OVERRIDE; |
33 virtual void SetBitrate(int bitrate) OVERRIDE; | 33 virtual void SetBitrate(int bitrate) OVERRIDE; |
34 | 34 |
35 private: | 35 private: |
36 // Only allow factories and tests to create this object. | |
37 // | |
38 // TODO(scherkus): I'm getting tired of these factories getting in the way | |
39 // of my tests!!! | |
40 FRIEND_TEST_ALL_PREFIXES(FileDataSourceTest, OpenFile); | |
41 FRIEND_TEST_ALL_PREFIXES(FileDataSourceTest, ReadData); | |
42 FRIEND_TEST_ALL_PREFIXES(FileDataSourceTest, Seek); | |
43 | |
44 // Informs the host of changes in total and buffered bytes. | 36 // Informs the host of changes in total and buffered bytes. |
45 void UpdateHostBytes(); | 37 void UpdateHostBytes(); |
46 | 38 |
47 // File handle. NULL if not initialized or an error occurs. | 39 // File handle. NULL if not initialized or an error occurs. |
48 FILE* file_; | 40 FILE* file_; |
49 | 41 |
50 // Size of the file in bytes. | 42 // Size of the file in bytes. |
51 int64 file_size_; | 43 int64 file_size_; |
52 | 44 |
53 // True if the FileDataSource should ignore its set file size, false | 45 // True if the FileDataSource should ignore its set file size, false |
54 // otherwise. | 46 // otherwise. |
55 bool disable_file_size_; | 47 bool disable_file_size_; |
56 | 48 |
57 // Critical section that protects all of the DataSource methods to prevent | 49 // Critical section that protects all of the DataSource methods to prevent |
58 // a Stop from happening while in the middle of a file I/O operation. | 50 // a Stop from happening while in the middle of a file I/O operation. |
59 // TODO(ralphl): Ideally this would use asynchronous I/O or we will know | 51 // TODO(ralphl): Ideally this would use asynchronous I/O or we will know |
60 // that we will block for a short period of time in reads. Otherwise, we can | 52 // that we will block for a short period of time in reads. Otherwise, we can |
61 // hang the pipeline Stop. | 53 // hang the pipeline Stop. |
62 base::Lock lock_; | 54 base::Lock lock_; |
63 | 55 |
64 DISALLOW_COPY_AND_ASSIGN(FileDataSource); | 56 DISALLOW_COPY_AND_ASSIGN(FileDataSource); |
65 }; | 57 }; |
66 | 58 |
67 } // namespace media | 59 } // namespace media |
68 | 60 |
69 #endif // MEDIA_FILTERS_FILE_DATA_SOURCE_H_ | 61 #endif // MEDIA_FILTERS_FILE_DATA_SOURCE_H_ |
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