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| 1 /* | |
| 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 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 | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #include "webrtc/modules/video_processing/main/source/spatial_resampler.h" | |
| 12 | |
| 13 | |
| 14 namespace webrtc { | |
| 15 | |
| 16 VPMSimpleSpatialResampler::VPMSimpleSpatialResampler() | |
| 17 : resampling_mode_(kFastRescaling), | |
| 18 target_width_(0), | |
| 19 target_height_(0), | |
| 20 scaler_() {} | |
| 21 | |
| 22 VPMSimpleSpatialResampler::~VPMSimpleSpatialResampler() {} | |
| 23 | |
| 24 | |
| 25 int32_t VPMSimpleSpatialResampler::SetTargetFrameSize(int32_t width, | |
| 26 int32_t height) { | |
| 27 if (resampling_mode_ == kNoRescaling) return VPM_OK; | |
| 28 | |
| 29 if (width < 1 || height < 1) return VPM_PARAMETER_ERROR; | |
| 30 | |
| 31 target_width_ = width; | |
| 32 target_height_ = height; | |
| 33 | |
| 34 return VPM_OK; | |
| 35 } | |
| 36 | |
| 37 void VPMSimpleSpatialResampler::SetInputFrameResampleMode( | |
| 38 VideoFrameResampling resampling_mode) { | |
| 39 resampling_mode_ = resampling_mode; | |
| 40 } | |
| 41 | |
| 42 void VPMSimpleSpatialResampler::Reset() { | |
| 43 resampling_mode_ = kFastRescaling; | |
| 44 target_width_ = 0; | |
| 45 target_height_ = 0; | |
| 46 } | |
| 47 | |
| 48 int32_t VPMSimpleSpatialResampler::ResampleFrame(const VideoFrame& inFrame, | |
| 49 VideoFrame* outFrame) { | |
| 50 // Don't copy if frame remains as is. | |
| 51 if (resampling_mode_ == kNoRescaling) | |
| 52 return VPM_OK; | |
| 53 // Check if re-sampling is needed | |
| 54 else if ((inFrame.width() == target_width_) && | |
| 55 (inFrame.height() == target_height_)) { | |
| 56 return VPM_OK; | |
| 57 } | |
| 58 | |
| 59 // Setting scaler | |
| 60 // TODO(mikhal/marpan): Should we allow for setting the filter mode in | |
| 61 // _scale.Set() with |resampling_mode_|? | |
| 62 int ret_val = 0; | |
| 63 ret_val = scaler_.Set(inFrame.width(), inFrame.height(), | |
| 64 target_width_, target_height_, kI420, kI420, kScaleBox); | |
| 65 if (ret_val < 0) | |
| 66 return ret_val; | |
| 67 | |
| 68 ret_val = scaler_.Scale(inFrame, outFrame); | |
| 69 | |
| 70 // Setting time parameters to the output frame. | |
| 71 // Timestamp will be reset in Scale call above, so we should set it after. | |
| 72 outFrame->set_timestamp(inFrame.timestamp()); | |
| 73 outFrame->set_render_time_ms(inFrame.render_time_ms()); | |
| 74 | |
| 75 if (ret_val == 0) | |
| 76 return VPM_OK; | |
| 77 else | |
| 78 return VPM_SCALE_ERROR; | |
| 79 } | |
| 80 | |
| 81 int32_t VPMSimpleSpatialResampler::TargetHeight() { | |
| 82 return target_height_; | |
| 83 } | |
| 84 | |
| 85 int32_t VPMSimpleSpatialResampler::TargetWidth() { | |
| 86 return target_width_; | |
| 87 } | |
| 88 | |
| 89 bool VPMSimpleSpatialResampler::ApplyResample(int32_t width, | |
| 90 int32_t height) { | |
| 91 if ((width == target_width_ && height == target_height_) || | |
| 92 resampling_mode_ == kNoRescaling) | |
| 93 return false; | |
| 94 else | |
| 95 return true; | |
| 96 } | |
| 97 | |
| 98 } // namespace webrtc | |
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Chromium Code Reviews
Issue 1410663004:
modules/video_processing: refactor interface->include + more. (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master