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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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_CAPTURE_CONTENT_CAPTURE_RESOLUTION_CHOOSER_H_ | 5 #ifndef DEVICE_CAPTURE_CONTENT_CAPTURE_RESOLUTION_CHOOSER_H_ |
| 6 #define MEDIA_CAPTURE_CONTENT_CAPTURE_RESOLUTION_CHOOSER_H_ | 6 #define DEVICE_CAPTURE_CONTENT_CAPTURE_RESOLUTION_CHOOSER_H_ |
| 7 | 7 |
| 8 #include <vector> | 8 #include <vector> |
| 9 | 9 |
| 10 #include "device/capture/capture_export.h" |
| 10 #include "media/base/video_capture_types.h" | 11 #include "media/base/video_capture_types.h" |
| 11 #include "media/capture/capture_export.h" | |
| 12 #include "ui/gfx/geometry/size.h" | 12 #include "ui/gfx/geometry/size.h" |
| 13 | 13 |
| 14 namespace media { | 14 namespace device { |
| 15 using media::ResolutionChangePolicy; |
| 15 | 16 |
| 16 // Encapsulates the logic that determines the capture frame resolution based on: | 17 // Encapsulates the logic that determines the capture frame resolution based on: |
| 17 // 1. The configured maximum frame resolution and resolution change policy. | 18 // 1. The configured maximum frame resolution and resolution change policy. |
| 18 // 2. Changes to resolution of the source content. | 19 // 2. Changes to resolution of the source content. |
| 19 // 3. Changes to the (externally-computed) target data volume, provided in | 20 // 3. Changes to the (externally-computed) target data volume, provided in |
| 20 // terms of the number of pixels in the frame. | 21 // terms of the number of pixels in the frame. |
| 21 // | 22 // |
| 22 // CaptureResolutionChooser always computes capture sizes less than the maximum | 23 // CaptureResolutionChooser always computes capture sizes less than the maximum |
| 23 // frame size, and adheres to the configured resolution change policy. Within | 24 // frame size, and adheres to the configured resolution change policy. Within |
| 24 // those hard limits, the capture size is computed to be as close to the | 25 // those hard limits, the capture size is computed to be as close to the |
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| 79 | 80 |
| 80 // The current computed capture frame resolution. | 81 // The current computed capture frame resolution. |
| 81 gfx::Size capture_size_; | 82 gfx::Size capture_size_; |
| 82 | 83 |
| 83 // Cache of the set of possible values |capture_size_| can have, in order from | 84 // Cache of the set of possible values |capture_size_| can have, in order from |
| 84 // smallest to largest. This is recomputed whenever UpdateSnappedFrameSizes() | 85 // smallest to largest. This is recomputed whenever UpdateSnappedFrameSizes() |
| 85 // is called. | 86 // is called. |
| 86 std::vector<gfx::Size> snapped_sizes_; | 87 std::vector<gfx::Size> snapped_sizes_; |
| 87 }; | 88 }; |
| 88 | 89 |
| 89 } // namespace media | 90 } // namespace device |
| 90 | 91 |
| 91 #endif // MEDIA_CAPTURE_CONTENT_CAPTURE_RESOLUTION_CHOOSER_H_ | 92 #endif // DEVICE_CAPTURE_CONTENT_CAPTURE_RESOLUTION_CHOOSER_H_ |
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