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1 /* | 1 /* |
2 * libjingle | 2 * Copyright 2010 The WebRTC Project Authors. All rights reserved. |
3 * Copyright 2010 Google Inc. | |
4 * | 3 * |
5 * Redistribution and use in source and binary forms, with or without | 4 * Use of this source code is governed by a BSD-style license |
6 * modification, are permitted provided that the following conditions are met: | 5 * that can be found in the LICENSE file in the root of the source |
7 * | 6 * tree. An additional intellectual property rights grant can be found |
8 * 1. Redistributions of source code must retain the above copyright notice, | 7 * in the file PATENTS. All contributing project authors may |
9 * this list of conditions and the following disclaimer. | 8 * be found in the AUTHORS file in the root of the source tree. |
10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
11 * this list of conditions and the following disclaimer in the documentation | |
12 * and/or other materials provided with the distribution. | |
13 * 3. The name of the author may not be used to endorse or promote products | |
14 * derived from this software without specific prior written permission. | |
15 * | |
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
26 */ | 9 */ |
27 | 10 |
28 #include "talk/media/base/videoadapter.h" | 11 #include "webrtc/media/base/videoadapter.h" |
29 | 12 |
30 #include <limits.h> // For INT_MAX | 13 #include <limits.h> // For INT_MAX |
31 #include <algorithm> | 14 #include <algorithm> |
32 | 15 |
33 #include "talk/media/base/constants.h" | |
34 #include "talk/media/base/videocommon.h" | |
35 #include "talk/media/base/videoframe.h" | |
36 #include "webrtc/base/logging.h" | 16 #include "webrtc/base/logging.h" |
37 #include "webrtc/base/timeutils.h" | 17 #include "webrtc/base/timeutils.h" |
| 18 #include "webrtc/media/base/constants.h" |
| 19 #include "webrtc/media/base/videocommon.h" |
| 20 #include "webrtc/media/base/videoframe.h" |
38 | 21 |
39 namespace cricket { | 22 namespace cricket { |
40 | 23 |
41 // TODO(fbarchard): Make downgrades settable | 24 // TODO(fbarchard): Make downgrades settable |
42 static const int kMaxCpuDowngrades = 2; // Downgrade at most 2 times for CPU. | 25 static const int kMaxCpuDowngrades = 2; // Downgrade at most 2 times for CPU. |
43 // The number of cpu samples to require before adapting. This value depends on | 26 // The number of cpu samples to require before adapting. This value depends on |
44 // the cpu monitor sampling frequency being 2000ms. | 27 // the cpu monitor sampling frequency being 2000ms. |
45 static const int kCpuLoadMinSamples = 3; | 28 static const int kCpuLoadMinSamples = 3; |
46 // The amount of weight to give to each new cpu load sample. The lower the | 29 // The amount of weight to give to each new cpu load sample. The lower the |
47 // value, the slower we'll adapt to changing cpu conditions. | 30 // value, the slower we'll adapt to changing cpu conditions. |
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296 << "x" << in_height | 279 << "x" << in_height |
297 << " i" << input_format_.interval | 280 << " i" << input_format_.interval |
298 << " Output: i" << output_format_.interval; | 281 << " Output: i" << output_format_.interval; |
299 } | 282 } |
300 | 283 |
301 return VideoFormat(); // Drop frame. | 284 return VideoFormat(); // Drop frame. |
302 } | 285 } |
303 | 286 |
304 const float scale = VideoAdapter::FindClosestViewScale( | 287 const float scale = VideoAdapter::FindClosestViewScale( |
305 in_width, in_height, output_num_pixels_); | 288 in_width, in_height, output_num_pixels_); |
306 const int output_width = static_cast<int>(in_width * scale + .5f); | 289 const size_t output_width = static_cast<size_t>(in_width * scale + .5f); |
307 const int output_height = static_cast<int>(in_height * scale + .5f); | 290 const size_t output_height = static_cast<size_t>(in_height * scale + .5f); |
308 | 291 |
309 ++frames_out_; | 292 ++frames_out_; |
310 if (scale != 1) | 293 if (scale != 1) |
311 ++frames_scaled_; | 294 ++frames_scaled_; |
312 // Show VAdapt log every 90 frames output. (3 seconds) | 295 // Show VAdapt log every 90 frames output. (3 seconds) |
313 // TODO(fbarchard): Consider GetLogSeverity() to change interval to less | 296 // TODO(fbarchard): Consider GetLogSeverity() to change interval to less |
314 // for LS_VERBOSE and more for LS_INFO. | 297 // for LS_VERBOSE and more for LS_INFO. |
315 bool show = (frames_out_) % 90 == 0; | 298 bool show = (frames_out_) % 90 == 0; |
316 | 299 |
317 // TODO(fbarchard): LOG the previous output resolution and track input | 300 // TODO(fbarchard): LOG the previous output resolution and track input |
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710 // When any adaptation occurs, historic CPU load levels are no longer | 693 // When any adaptation occurs, historic CPU load levels are no longer |
711 // accurate. Clear out our state so we can re-learn at the new normal. | 694 // accurate. Clear out our state so we can re-learn at the new normal. |
712 cpu_load_num_samples_ = 0; | 695 cpu_load_num_samples_ = 0; |
713 system_load_average_ = kCpuLoadInitialAverage; | 696 system_load_average_ = kCpuLoadInitialAverage; |
714 } | 697 } |
715 | 698 |
716 return changed; | 699 return changed; |
717 } | 700 } |
718 | 701 |
719 } // namespace cricket | 702 } // namespace cricket |
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