| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CONTENT_RENDERER_MEDIA_BUFFERED_DATA_SOURCE_HOST_IMPL_H_ |
| #define CONTENT_RENDERER_MEDIA_BUFFERED_DATA_SOURCE_HOST_IMPL_H_ |
| |
| #include "base/time/time.h" |
| #include "content/common/content_export.h" |
| #include "content/renderer/media/buffered_data_source.h" |
| #include "media/base/ranges.h" |
| |
| namespace content { |
| |
| // Provides an implementation of BufferedDataSourceHost that translates the |
| // buffered byte ranges into estimated time ranges. |
| class CONTENT_EXPORT BufferedDataSourceHostImpl |
| : public BufferedDataSourceHost { |
| public: |
| BufferedDataSourceHostImpl(); |
| virtual ~BufferedDataSourceHostImpl(); |
| |
| // BufferedDataSourceHost implementation. |
| virtual void SetTotalBytes(int64 total_bytes) OVERRIDE; |
| virtual void AddBufferedByteRange(int64 start, int64 end) OVERRIDE; |
| |
| // Translate the byte ranges to time ranges and append them to the list. |
| // TODO(sandersd): This is a confusing name, find something better. |
| void AddBufferedTimeRanges( |
| media::Ranges<base::TimeDelta>* buffered_time_ranges, |
| base::TimeDelta media_duration) const; |
| |
| bool DidLoadingProgress(); |
| |
| private: |
| // Total size of the data source. |
| int64 total_bytes_; |
| |
| // List of buffered byte ranges for estimating buffered time. |
| media::Ranges<int64> buffered_byte_ranges_; |
| |
| // True when AddBufferedByteRange() has been called more recently than |
| // DidLoadingProgress(). |
| bool did_loading_progress_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BufferedDataSourceHostImpl); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_MEDIA_BUFFERED_DATA_SOURCE_HOST_IMPL_H_ |