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Side by Side Diff: media/base/data_source.h

Issue 495353003: Move WebMediaPlayerImpl and its dependencies to media/blink. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: . Created 6 years, 3 months ago
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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_BASE_DATA_SOURCE_H_ 5 #ifndef MEDIA_BASE_DATA_SOURCE_H_
6 #define MEDIA_BASE_DATA_SOURCE_H_ 6 #define MEDIA_BASE_DATA_SOURCE_H_
7 7
8 #include "base/callback.h" 8 #include "base/callback.h"
9 #include "base/time/time.h" 9 #include "base/time/time.h"
10 #include "media/base/media_export.h" 10 #include "media/base/media_export.h"
11 11
12 namespace media { 12 namespace media {
13 13
14 class MEDIA_EXPORT DataSource { 14 class MEDIA_EXPORT DataSource {
15 public: 15 public:
16 typedef base::Callback<void(int64, int64)> StatusCallback; 16 typedef base::Callback<void(int64, int64)> StatusCallback;
17 typedef base::Callback<void(int)> ReadCB; 17 typedef base::Callback<void(int)> ReadCB;
18 static const int kReadError; 18
19 enum { kReadError = -1 };
19 20
20 DataSource(); 21 DataSource();
21 virtual ~DataSource(); 22 virtual ~DataSource();
22 23
23 // Reads |size| bytes from |position| into |data|. And when the read is done 24 // Reads |size| bytes from |position| into |data|. And when the read is done
24 // or failed, |read_cb| is called with the number of bytes read or 25 // or failed, |read_cb| is called with the number of bytes read or
25 // kReadError in case of error. 26 // kReadError in case of error.
26 virtual void Read(int64 position, int size, uint8* data, 27 virtual void Read(int64 position, int size, uint8* data,
27 const DataSource::ReadCB& read_cb) = 0; 28 const DataSource::ReadCB& read_cb) = 0;
28 29
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42 // Values of |bitrate| <= 0 are invalid and should be ignored. 43 // Values of |bitrate| <= 0 are invalid and should be ignored.
43 virtual void SetBitrate(int bitrate) = 0; 44 virtual void SetBitrate(int bitrate) = 0;
44 45
45 private: 46 private:
46 DISALLOW_COPY_AND_ASSIGN(DataSource); 47 DISALLOW_COPY_AND_ASSIGN(DataSource);
47 }; 48 };
48 49
49 } // namespace media 50 } // namespace media
50 51
51 #endif // MEDIA_BASE_DATA_SOURCE_H_ 52 #endif // MEDIA_BASE_DATA_SOURCE_H_
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