| // Copyright 2017 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 MEDIA_CAPABILITIES_BUCKET_UTILITY_H_ |
| #define MEDIA_CAPABILITIES_BUCKET_UTILITY_H_ |
| |
| #include "media/base/media_export.h" |
| #include "ui/gfx/geometry/size.h" |
| |
| namespace media { |
| |
| // Find the nearest "bucket" with dimensions >= |raw_size|. While smaller |
| // buckets may more closely describe |raw_size|, the next largest bucket is |
| // chosen to surface cutoff resolutions in HW-accelerated decoders. Exceeding |
| // the HW cutoff will invoke the software fallback, giving potentially very |
| // different decode performance at larger resolutions. Will return an empty |
| // size if |raw_size| is too small to be bucketed. |
| MEDIA_EXPORT gfx::Size GetSizeBucket(const gfx::Size& raw_size); |
| |
| // Round |raw_fps| to the nearest (smaller or larger) "bucket". FrameRates in |
| // the same bucket should have nearly identical decode performance |
| // characteristics. Bucketing helps avoid fragmentation of recorded stats. |
| MEDIA_EXPORT int GetFpsBucket(double raw_fps); |
| |
| } // namespace media |
| |
| #endif // MEDIA_CAPABILITIES_BUCKET_UTILITY_H_ |
