// Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "remoting/codec/video_encoder_helper.h" #include "remoting/proto/video.pb.h" #include "third_party/webrtc/modules/desktop_capture/desktop_frame.h" #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h" #include "third_party/webrtc/modules/desktop_capture/desktop_region.h" namespace remoting { VideoEncoderHelper::VideoEncoderHelper() = default; std::unique_ptr VideoEncoderHelper::CreateVideoPacket( const webrtc::DesktopFrame& frame) { return CreateVideoPacketWithUpdatedRegion(frame, frame.updated_region()); } std::unique_ptr VideoEncoderHelper::CreateVideoPacketWithUpdatedRegion( const webrtc::DesktopFrame& frame, const webrtc::DesktopRegion& updated_region) { std::unique_ptr packet(new VideoPacket()); // Set |screen_width| and |screen_height| iff they have changed. if (!frame.size().equals(screen_size_)) { screen_size_ = frame.size(); VideoPacketFormat* format = packet->mutable_format(); format->set_screen_width(screen_size_.width()); format->set_screen_height(screen_size_.height()); } // Record the list of changed rectangles. for (webrtc::DesktopRegion::Iterator iter(updated_region); !iter.IsAtEnd(); iter.Advance()) { const webrtc::DesktopRect& rect = iter.rect(); Rect* dirty_rect = packet->add_dirty_rects(); dirty_rect->set_x(rect.left()); dirty_rect->set_y(rect.top()); dirty_rect->set_width(rect.width()); dirty_rect->set_height(rect.height()); } // Store frame DPI. if (!frame.dpi().is_zero()) { packet->mutable_format()->set_x_dpi(frame.dpi().x()); packet->mutable_format()->set_y_dpi(frame.dpi().y()); } return packet; } } // namespace remoting