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