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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 #include "content/renderer/media/media_stream_video_capturer_source.h" | 5 #include "content/renderer/media/media_stream_video_capturer_source.h" |
| 6 | 6 |
| 7 #include <utility> | 7 #include <utility> |
| 8 | 8 |
| 9 #include "base/bind.h" | 9 #include "base/bind.h" |
| 10 #include "base/callback_helpers.h" | 10 #include "base/callback_helpers.h" |
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| 89 } else { | 89 } else { |
| 90 NOTREACHED(); | 90 NOTREACHED(); |
| 91 } | 91 } |
| 92 | 92 |
| 93 // If the maximum frame resolution was provided in the constraints, use it if | 93 // If the maximum frame resolution was provided in the constraints, use it if |
| 94 // either: 1) none has been set yet; or 2) the maximum specificed is smaller | 94 // either: 1) none has been set yet; or 2) the maximum specificed is smaller |
| 95 // than the current setting. | 95 // than the current setting. |
| 96 int width = 0; | 96 int width = 0; |
| 97 int height = 0; | 97 int height = 0; |
| 98 gfx::Size desired_max_frame_size; | 98 gfx::Size desired_max_frame_size; |
| 99 if (GetConstraintValueAsInteger(constraints, | 99 if (GetConstraintMaxAsInteger( |
| 100 MediaStreamVideoSource::kMaxWidth, | 100 constraints, &blink::WebMediaTrackConstraintSet::width, &width) && |
| 101 &width) && | 101 GetConstraintMaxAsInteger( |
| 102 GetConstraintValueAsInteger(constraints, | 102 constraints, &blink::WebMediaTrackConstraintSet::height, &height) && |
| 103 MediaStreamVideoSource::kMaxHeight, | 103 DimensionValueIsValid(width) && DimensionValueIsValid(height)) { |
| 104 &height) && | |
| 105 DimensionValueIsValid(width) && | |
| 106 DimensionValueIsValid(height)) { | |
| 107 desired_max_frame_size.SetSize(width, height); | 104 desired_max_frame_size.SetSize(width, height); |
| 108 if (params->requested_format.frame_size.IsEmpty() || | 105 if (params->requested_format.frame_size.IsEmpty() || |
| 109 desired_max_frame_size.width() < | 106 desired_max_frame_size.width() < |
| 110 params->requested_format.frame_size.width() || | 107 params->requested_format.frame_size.width() || |
| 111 desired_max_frame_size.height() < | 108 desired_max_frame_size.height() < |
| 112 params->requested_format.frame_size.height()) { | 109 params->requested_format.frame_size.height()) { |
| 113 params->requested_format.frame_size = desired_max_frame_size; | 110 params->requested_format.frame_size = desired_max_frame_size; |
| 114 } | 111 } |
| 115 } | 112 } |
| 116 | 113 |
| 117 // Set the default frame resolution if none was provided. | 114 // Set the default frame resolution if none was provided. |
| 118 if (params->requested_format.frame_size.IsEmpty()) { | 115 if (params->requested_format.frame_size.IsEmpty()) { |
| 119 params->requested_format.frame_size.SetSize( | 116 params->requested_format.frame_size.SetSize( |
| 120 MediaStreamVideoSource::kDefaultWidth, | 117 MediaStreamVideoSource::kDefaultWidth, |
| 121 MediaStreamVideoSource::kDefaultHeight); | 118 MediaStreamVideoSource::kDefaultHeight); |
| 122 } | 119 } |
| 123 | 120 |
| 124 // If the maximum frame rate was provided, use it if either: 1) none has been | 121 // If the maximum frame rate was provided, use it if either: 1) none has been |
| 125 // set yet; or 2) the maximum specificed is smaller than the current setting. | 122 // set yet; or 2) the maximum specificed is smaller than the current setting. |
| 126 double frame_rate = 0.0; | 123 double frame_rate = 0.0; |
| 127 if (GetConstraintValueAsDouble(constraints, | 124 if (GetConstraintMaxAsDouble(constraints, |
| 128 MediaStreamVideoSource::kMaxFrameRate, | 125 &blink::WebMediaTrackConstraintSet::frameRate, |
| 129 &frame_rate) && | 126 &frame_rate) && |
| 130 FrameRateValueIsValid(frame_rate)) { | 127 FrameRateValueIsValid(frame_rate)) { |
| 131 if (params->requested_format.frame_rate <= 0.0f || | 128 if (params->requested_format.frame_rate <= 0.0f || |
| 132 frame_rate < params->requested_format.frame_rate) { | 129 frame_rate < params->requested_format.frame_rate) { |
| 133 params->requested_format.frame_rate = frame_rate; | 130 params->requested_format.frame_rate = frame_rate; |
| 134 } | 131 } |
| 135 } | 132 } |
| 136 | 133 |
| 137 // Set the default frame rate if none was provided. | 134 // Set the default frame rate if none was provided. |
| 138 if (params->requested_format.frame_rate <= 0.0f) { | 135 if (params->requested_format.frame_rate <= 0.0f) { |
| 139 params->requested_format.frame_rate = | 136 params->requested_format.frame_rate = |
| 140 MediaStreamVideoSource::kDefaultFrameRate; | 137 MediaStreamVideoSource::kDefaultFrameRate; |
| 141 } | 138 } |
| 142 | 139 |
| 143 // If the minimum frame resolution was provided, compare it to the maximum | 140 // If the minimum frame resolution was provided, compare it to the maximum |
| 144 // frame resolution to determine the intended resolution change policy. | 141 // frame resolution to determine the intended resolution change policy. |
| 145 if (!desired_max_frame_size.IsEmpty() && | 142 if (!desired_max_frame_size.IsEmpty() && |
| 146 GetConstraintValueAsInteger(constraints, | 143 GetConstraintMinAsInteger( |
| 147 MediaStreamVideoSource::kMinWidth, | 144 constraints, &blink::WebMediaTrackConstraintSet::width, &width) && |
| 148 &width) && | 145 GetConstraintMinAsInteger( |
| 149 GetConstraintValueAsInteger(constraints, | 146 constraints, &blink::WebMediaTrackConstraintSet::height, &height) && |
| 150 MediaStreamVideoSource::kMinHeight, | |
| 151 &height) && | |
| 152 width <= desired_max_frame_size.width() && | 147 width <= desired_max_frame_size.width() && |
| 153 height <= desired_max_frame_size.height()) { | 148 height <= desired_max_frame_size.height()) { |
| 154 if (width == desired_max_frame_size.width() && | 149 if (width == desired_max_frame_size.width() && |
| 155 height == desired_max_frame_size.height()) { | 150 height == desired_max_frame_size.height()) { |
| 156 // Constraints explicitly require a single frame resolution. | 151 // Constraints explicitly require a single frame resolution. |
| 157 params->resolution_change_policy = | 152 params->resolution_change_policy = |
| 158 media::RESOLUTION_POLICY_FIXED_RESOLUTION; | 153 media::RESOLUTION_POLICY_FIXED_RESOLUTION; |
| 159 } else if (DimensionValueIsValid(width) && | 154 } else if (DimensionValueIsValid(width) && |
| 160 DimensionValueIsValid(height) && | 155 DimensionValueIsValid(height) && |
| 161 AreNearlyEquivalentInAspectRatio(gfx::Size(width, height), | 156 AreNearlyEquivalentInAspectRatio(gfx::Size(width, height), |
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| 179 << params->resolution_change_policy; | 174 << params->resolution_change_policy; |
| 180 } | 175 } |
| 181 | 176 |
| 182 // Interprets the properties in |constraints| to override values in |params| and | 177 // Interprets the properties in |constraints| to override values in |params| and |
| 183 // determine the power line frequency. | 178 // determine the power line frequency. |
| 184 void SetPowerLineFrequencyParamFromConstraints( | 179 void SetPowerLineFrequencyParamFromConstraints( |
| 185 const blink::WebMediaConstraints& constraints, | 180 const blink::WebMediaConstraints& constraints, |
| 186 media::VideoCaptureParams* params) { | 181 media::VideoCaptureParams* params) { |
| 187 int freq; | 182 int freq; |
| 188 params->power_line_frequency = media::PowerLineFrequency::FREQUENCY_DEFAULT; | 183 params->power_line_frequency = media::PowerLineFrequency::FREQUENCY_DEFAULT; |
| 189 if (!GetOptionalConstraintValueAsInteger(constraints, kPowerLineFrequency, | 184 if (!GetConstraintValueAsInteger( |
| 190 &freq)) { | 185 constraints, |
| 186 &blink::WebMediaTrackConstraintSet::googPowerLineFrequency, &freq)) { |
| 191 return; | 187 return; |
| 192 } | 188 } |
| 193 if (freq == static_cast<int>(media::PowerLineFrequency::FREQUENCY_50HZ)) | 189 if (freq == static_cast<int>(media::PowerLineFrequency::FREQUENCY_50HZ)) |
| 194 params->power_line_frequency = media::PowerLineFrequency::FREQUENCY_50HZ; | 190 params->power_line_frequency = media::PowerLineFrequency::FREQUENCY_50HZ; |
| 195 else if (freq == static_cast<int>(media::PowerLineFrequency::FREQUENCY_60HZ)) | 191 else if (freq == static_cast<int>(media::PowerLineFrequency::FREQUENCY_60HZ)) |
| 196 params->power_line_frequency = media::PowerLineFrequency::FREQUENCY_60HZ; | 192 params->power_line_frequency = media::PowerLineFrequency::FREQUENCY_60HZ; |
| 197 } | 193 } |
| 198 | 194 |
| 199 // LocalVideoCapturerSource is a delegate used by MediaStreamVideoCapturerSource | 195 // LocalVideoCapturerSource is a delegate used by MediaStreamVideoCapturerSource |
| 200 // for local video capture. It uses the Render singleton VideoCaptureImplManager | 196 // for local video capture. It uses the Render singleton VideoCaptureImplManager |
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| 440 void MediaStreamVideoCapturerSource::OnStarted(bool result) { | 436 void MediaStreamVideoCapturerSource::OnStarted(bool result) { |
| 441 OnStartDone(result ? MEDIA_DEVICE_OK : MEDIA_DEVICE_TRACK_START_FAILURE); | 437 OnStartDone(result ? MEDIA_DEVICE_OK : MEDIA_DEVICE_TRACK_START_FAILURE); |
| 442 } | 438 } |
| 443 | 439 |
| 444 const char* | 440 const char* |
| 445 MediaStreamVideoCapturerSource::GetPowerLineFrequencyForTesting() const { | 441 MediaStreamVideoCapturerSource::GetPowerLineFrequencyForTesting() const { |
| 446 return kPowerLineFrequency; | 442 return kPowerLineFrequency; |
| 447 } | 443 } |
| 448 | 444 |
| 449 } // namespace content | 445 } // namespace content |
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