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1 /* | 1 /* |
2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2016 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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77 RTC_DCHECK(thread_checker_.CalledOnValidThread()); | 77 RTC_DCHECK(thread_checker_.CalledOnValidThread()); |
78 | 78 |
79 VideoSinkWants wants; | 79 VideoSinkWants wants; |
80 wants.rotation_applied = false; | 80 wants.rotation_applied = false; |
81 for (auto& sink : sink_pairs()) { | 81 for (auto& sink : sink_pairs()) { |
82 // wants.rotation_applied == ANY(sink.wants.rotation_applied) | 82 // wants.rotation_applied == ANY(sink.wants.rotation_applied) |
83 if (sink.wants.rotation_applied) { | 83 if (sink.wants.rotation_applied) { |
84 wants.rotation_applied = true; | 84 wants.rotation_applied = true; |
85 } | 85 } |
86 // wants.max_pixel_count == MIN(sink.wants.max_pixel_count) | 86 // wants.max_pixel_count == MIN(sink.wants.max_pixel_count) |
87 if (sink.wants.max_pixel_count < wants.max_pixel_count) { | 87 if (sink.wants.max_pixel_count && |
| 88 (!wants.max_pixel_count || |
| 89 (*sink.wants.max_pixel_count < *wants.max_pixel_count))) { |
88 wants.max_pixel_count = sink.wants.max_pixel_count; | 90 wants.max_pixel_count = sink.wants.max_pixel_count; |
89 } | 91 } |
90 // Select the minimum requested target_pixel_count, if any, of all sinks so | 92 // Select the minimum requested target_pixel_count, if any, of all sinks so |
91 // that we don't over utilize the resources for any one. | 93 // that we don't over utilize the resources for any one. |
92 // TODO(sprang): Consider using the median instead, since the limit can be | 94 // TODO(sprang): Consider using the median instead, since the limit can be |
93 // expressed by max_pixel_count. | 95 // expressed by max_pixel_count. |
94 if (sink.wants.target_pixel_count && | 96 if (sink.wants.target_pixel_count && |
95 (!wants.target_pixel_count || | 97 (!wants.target_pixel_count || |
96 (*sink.wants.target_pixel_count < *wants.target_pixel_count))) { | 98 (*sink.wants.target_pixel_count < *wants.target_pixel_count))) { |
97 wants.target_pixel_count = sink.wants.target_pixel_count; | 99 wants.target_pixel_count = sink.wants.target_pixel_count; |
98 } | 100 } |
99 // Select the minimum for the requested max framerates. | |
100 if (sink.wants.max_framerate_fps < wants.max_framerate_fps) { | |
101 wants.max_framerate_fps = sink.wants.max_framerate_fps; | |
102 } | |
103 } | 101 } |
104 | 102 |
105 if (wants.target_pixel_count && | 103 if (wants.max_pixel_count && wants.target_pixel_count && |
106 *wants.target_pixel_count >= wants.max_pixel_count) { | 104 *wants.target_pixel_count >= *wants.max_pixel_count) { |
107 wants.target_pixel_count.emplace(wants.max_pixel_count); | 105 wants.target_pixel_count = wants.max_pixel_count; |
108 } | 106 } |
109 current_wants_ = wants; | 107 current_wants_ = wants; |
110 } | 108 } |
111 | 109 |
112 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& | 110 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& |
113 VideoBroadcaster::GetBlackFrameBuffer(int width, int height) { | 111 VideoBroadcaster::GetBlackFrameBuffer(int width, int height) { |
114 if (!black_frame_buffer_ || black_frame_buffer_->width() != width || | 112 if (!black_frame_buffer_ || black_frame_buffer_->width() != width || |
115 black_frame_buffer_->height() != height) { | 113 black_frame_buffer_->height() != height) { |
116 rtc::scoped_refptr<webrtc::I420Buffer> buffer = | 114 rtc::scoped_refptr<webrtc::I420Buffer> buffer = |
117 webrtc::I420Buffer::Create(width, height); | 115 webrtc::I420Buffer::Create(width, height); |
118 webrtc::I420Buffer::SetBlack(buffer.get()); | 116 webrtc::I420Buffer::SetBlack(buffer.get()); |
119 black_frame_buffer_ = buffer; | 117 black_frame_buffer_ = buffer; |
120 } | 118 } |
121 | 119 |
122 return black_frame_buffer_; | 120 return black_frame_buffer_; |
123 } | 121 } |
124 | 122 |
125 } // namespace rtc | 123 } // namespace rtc |
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