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- // 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<VideoPacket> VideoEncoderHelper::CreateVideoPacket(
- const webrtc::DesktopFrame& frame) {
- return CreateVideoPacketWithUpdatedRegion(frame, frame.updated_region());
- }
- std::unique_ptr<VideoPacket>
- VideoEncoderHelper::CreateVideoPacketWithUpdatedRegion(
- const webrtc::DesktopFrame& frame,
- const webrtc::DesktopRegion& updated_region) {
- std::unique_ptr<VideoPacket> 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
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