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1 // Copyright 2014 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. | |
4 | |
5 #ifndef CONTENT_RENDERER_MEDIA_BUFFERED_DATA_SOURCE_HOST_IMPL_H_ | |
6 #define CONTENT_RENDERER_MEDIA_BUFFERED_DATA_SOURCE_HOST_IMPL_H_ | |
7 | |
8 #include "base/time/time.h" | |
9 #include "content/common/content_export.h" | |
10 #include "content/renderer/media/buffered_data_source.h" | |
11 #include "media/base/ranges.h" | |
12 | |
13 namespace content { | |
14 | |
15 // Provides an implementation of BufferedDataSourceHost that translates the | |
16 // buffered byte ranges into estimated time ranges. | |
17 class CONTENT_EXPORT BufferedDataSourceHostImpl | |
18 : public BufferedDataSourceHost { | |
19 public: | |
20 BufferedDataSourceHostImpl(); | |
21 virtual ~BufferedDataSourceHostImpl(); | |
22 | |
23 // BufferedDataSourceHost implementation. | |
24 virtual void SetTotalBytes(int64 total_bytes) OVERRIDE; | |
25 virtual void AddBufferedByteRange(int64 start, int64 end) OVERRIDE; | |
26 | |
27 // Translate the byte ranges to time ranges and append them to the list. | |
28 // TODO(sandersd): This is a confusing name, find something better. | |
29 void AddBufferedTimeRanges( | |
30 media::Ranges<base::TimeDelta>* buffered_time_ranges, | |
31 base::TimeDelta media_duration) const; | |
32 | |
33 bool DidLoadingProgress(); | |
34 | |
35 private: | |
36 // Total size of the data source. | |
37 int64 total_bytes_; | |
38 | |
39 // List of buffered byte ranges for estimating buffered time. | |
40 media::Ranges<int64> buffered_byte_ranges_; | |
41 | |
42 // True when AddBufferedByteRange() has been called more recently than | |
43 // DidLoadingProgress(). | |
44 bool did_loading_progress_; | |
45 | |
46 DISALLOW_COPY_AND_ASSIGN(BufferedDataSourceHostImpl); | |
47 }; | |
48 | |
49 } // namespace content | |
50 | |
51 #endif // CONTENT_RENDERER_MEDIA_BUFFERED_DATA_SOURCE_HOST_IMPL_H_ | |
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