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

Issue 2267963002: Add support for cancellation of demuxer reads. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Actually abort the data. Created 4 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 <stdint.h> 8 #include <stdint.h>
9 9
10 #include "base/callback.h" 10 #include "base/callback.h"
(...skipping 18 matching lines...) Expand all
29 // kReadError in case of error. 29 // kReadError in case of error.
30 virtual void Read(int64_t position, 30 virtual void Read(int64_t position,
31 int size, 31 int size,
32 uint8_t* data, 32 uint8_t* data,
33 const DataSource::ReadCB& read_cb) = 0; 33 const DataSource::ReadCB& read_cb) = 0;
34 34
35 // Stops the DataSource. Once this is called all future Read() calls will 35 // Stops the DataSource. Once this is called all future Read() calls will
36 // return an error. 36 // return an error.
37 virtual void Stop() = 0; 37 virtual void Stop() = 0;
38 38
39 // Similar to Stop(), but only aborts current reads and not future reads.
40 virtual void Abort() = 0;
41
39 // Returns true and the file size, false if the file size could not be 42 // Returns true and the file size, false if the file size could not be
40 // retrieved. 43 // retrieved.
41 virtual bool GetSize(int64_t* size_out) = 0; 44 virtual bool GetSize(int64_t* size_out) = 0;
42 45
43 // Returns true if we are performing streaming. In this case seeking is 46 // Returns true if we are performing streaming. In this case seeking is
44 // not possible. 47 // not possible.
45 virtual bool IsStreaming() = 0; 48 virtual bool IsStreaming() = 0;
46 49
47 // Notify the DataSource of the bitrate of the media. 50 // Notify the DataSource of the bitrate of the media.
48 // Values of |bitrate| <= 0 are invalid and should be ignored. 51 // Values of |bitrate| <= 0 are invalid and should be ignored.
49 virtual void SetBitrate(int bitrate) = 0; 52 virtual void SetBitrate(int bitrate) = 0;
50 53
51 private: 54 private:
52 DISALLOW_COPY_AND_ASSIGN(DataSource); 55 DISALLOW_COPY_AND_ASSIGN(DataSource);
53 }; 56 };
54 57
55 } // namespace media 58 } // namespace media
56 59
57 #endif // MEDIA_BASE_DATA_SOURCE_H_ 60 #endif // MEDIA_BASE_DATA_SOURCE_H_
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