51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
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/*
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* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/media/base/videoframefactory.h"
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#include <algorithm>
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#include "webrtc/media/base/videocapturer.h"
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namespace cricket {
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VideoFrame* VideoFrameFactory::CreateAliasedFrame(
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const CapturedFrame* input_frame,
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int cropped_input_width,
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int cropped_input_height,
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int output_width,
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int output_height) const {
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std::unique_ptr<VideoFrame> cropped_input_frame(CreateAliasedFrame(
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input_frame, cropped_input_width, cropped_input_height));
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if (!cropped_input_frame)
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return nullptr;
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if (cropped_input_width == output_width &&
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cropped_input_height == output_height) {
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// No scaling needed.
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return cropped_input_frame.release();
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}
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// If the frame is rotated, we need to switch the width and height.
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if (apply_rotation_ &&
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(input_frame->rotation == webrtc::kVideoRotation_90 ||
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input_frame->rotation == webrtc::kVideoRotation_270)) {
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std::swap(output_width, output_height);
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}
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rtc::scoped_refptr<webrtc::I420Buffer> scaled_buffer(
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pool_.CreateBuffer(output_width, output_height));
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scaled_buffer->CropAndScaleFrom(cropped_input_frame->video_frame_buffer());
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return new WebRtcVideoFrame(scaled_buffer, cropped_input_frame->rotation(),
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cropped_input_frame->timestamp_us());
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}
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} // namespace cricket
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