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1 /* | 1 /* |
2 * Copyright (c) 2010 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2010 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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25 class VideoAdapter { | 25 class VideoAdapter { |
26 public: | 26 public: |
27 VideoAdapter(); | 27 VideoAdapter(); |
28 virtual ~VideoAdapter(); | 28 virtual ~VideoAdapter(); |
29 | 29 |
30 // Sets the expected frame interval. This controls how often frames should | 30 // Sets the expected frame interval. This controls how often frames should |
31 // be dropped if |OnOutputFormatRequest| is called with a lower frame | 31 // be dropped if |OnOutputFormatRequest| is called with a lower frame |
32 // interval. | 32 // interval. |
33 void SetExpectedInputFrameInterval(int64_t interval); | 33 void SetExpectedInputFrameInterval(int64_t interval); |
34 | 34 |
35 // Return the adapted resolution given the input resolution. The input | 35 // Return the adapted resolution and cropping parameters given the |
36 // resolution should first be cropped to the specified resolution, and then | 36 // input resolution. The input frame should first be cropped, then |
37 // scaled to the final output resolution. The output resolution will be 0x0 if | 37 // scaled to the final output resolution. Returns true if the frame |
38 // the frame should be dropped. | 38 // should be adapted, and false if it should be dropped. |
39 void AdaptFrameResolution(int in_width, | 39 bool AdaptFrameResolution(int in_width, |
40 int in_height, | 40 int in_height, |
41 int* cropped_width, | 41 int* cropped_width, |
42 int* cropped_height, | 42 int* cropped_height, |
43 int* out_width, | 43 int* out_width, |
44 int* out_height); | 44 int* out_height); |
45 | 45 |
46 // Requests the output frame size and frame interval from | 46 // Requests the output frame size and frame interval from |
47 // |AdaptFrameResolution| to not be larger than |format|. Also, the input | 47 // |AdaptFrameResolution| to not be larger than |format|. Also, the input |
48 // frame size will be cropped to match the requested aspect ratio. The | 48 // frame size will be cropped to match the requested aspect ratio. The |
49 // requested aspect ratio is orientation agnostic and will be adjusted to | 49 // requested aspect ratio is orientation agnostic and will be adjusted to |
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76 | 76 |
77 // The critical section to protect the above variables. | 77 // The critical section to protect the above variables. |
78 rtc::CriticalSection critical_section_; | 78 rtc::CriticalSection critical_section_; |
79 | 79 |
80 RTC_DISALLOW_COPY_AND_ASSIGN(VideoAdapter); | 80 RTC_DISALLOW_COPY_AND_ASSIGN(VideoAdapter); |
81 }; | 81 }; |
82 | 82 |
83 } // namespace cricket | 83 } // namespace cricket |
84 | 84 |
85 #endif // WEBRTC_MEDIA_BASE_VIDEOADAPTER_H_ | 85 #endif // WEBRTC_MEDIA_BASE_VIDEOADAPTER_H_ |
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