Index: webrtc/media/base/videoframefactory.cc |
diff --git a/webrtc/media/base/videoframefactory.cc b/webrtc/media/base/videoframefactory.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..a4eeece148c9cb49294c4334767ddb1e6fc5f30c |
--- /dev/null |
+++ b/webrtc/media/base/videoframefactory.cc |
@@ -0,0 +1,51 @@ |
+/* |
+ * 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(), |
+ cropped_input_frame->transport_frame_id()); |
+} |
+ |
+} // namespace cricket |