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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 WEBKIT_MEDIA_BUFFERED_RESOURCE_LOADER_H_ | 5 #ifndef WEBKIT_MEDIA_BUFFERED_RESOURCE_LOADER_H_ |
6 #define WEBKIT_MEDIA_BUFFERED_RESOURCE_LOADER_H_ | 6 #define WEBKIT_MEDIA_BUFFERED_RESOURCE_LOADER_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/callback.h" | 10 #include "base/callback.h" |
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22 class MediaLog; | 22 class MediaLog; |
23 class SeekableBuffer; | 23 class SeekableBuffer; |
24 } | 24 } |
25 | 25 |
26 namespace webkit_media { | 26 namespace webkit_media { |
27 | 27 |
28 const int64 kPositionNotSpecified = -1; | 28 const int64 kPositionNotSpecified = -1; |
29 | 29 |
30 const char kHttpScheme[] = "http"; | 30 const char kHttpScheme[] = "http"; |
31 const char kHttpsScheme[] = "https"; | 31 const char kHttpsScheme[] = "https"; |
32 const char kDataScheme[] = "data"; | |
33 | 32 |
34 // BufferedResourceLoader is single threaded and must be accessed on the | 33 // BufferedResourceLoader is single threaded and must be accessed on the |
35 // render thread. It wraps a WebURLLoader and does in-memory buffering, | 34 // render thread. It wraps a WebURLLoader and does in-memory buffering, |
36 // pausing resource loading when the in-memory buffer is full and resuming | 35 // pausing resource loading when the in-memory buffer is full and resuming |
37 // resource loading when there is available capacity. | 36 // resource loading when there is available capacity. |
38 class BufferedResourceLoader : public WebKit::WebURLLoaderClient { | 37 class BufferedResourceLoader : public WebKit::WebURLLoaderClient { |
39 public: | 38 public: |
40 // kNeverDefer - Aggresively buffer; never defer loading while paused. | 39 // kNeverDefer - Aggresively buffer; never defer loading while paused. |
41 // kReadThenDefer - Request only enough data to fulfill read requests. | 40 // kReadThenDefer - Request only enough data to fulfill read requests. |
42 // kCapacityDefer - Try to keep amount of buffered data at capacity. | 41 // kCapacityDefer - Try to keep amount of buffered data at capacity. |
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326 float playback_rate_; | 325 float playback_rate_; |
327 | 326 |
328 scoped_refptr<media::MediaLog> media_log_; | 327 scoped_refptr<media::MediaLog> media_log_; |
329 | 328 |
330 DISALLOW_COPY_AND_ASSIGN(BufferedResourceLoader); | 329 DISALLOW_COPY_AND_ASSIGN(BufferedResourceLoader); |
331 }; | 330 }; |
332 | 331 |
333 } // namespace webkit_media | 332 } // namespace webkit_media |
334 | 333 |
335 #endif // WEBKIT_MEDIA_BUFFERED_RESOURCE_LOADER_H_ | 334 #endif // WEBKIT_MEDIA_BUFFERED_RESOURCE_LOADER_H_ |
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