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