| // 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() {} |
| |
| scoped_ptr<VideoPacket> VideoEncoderHelper::CreateVideoPacket( |
| const webrtc::DesktopFrame& frame) { |
| return CreateVideoPacketWithUpdatedRegion(frame, frame.updated_region()); |
| } |
| |
| scoped_ptr<VideoPacket> |
| VideoEncoderHelper::CreateVideoPacketWithUpdatedRegion( |
| const webrtc::DesktopFrame& frame, |
| const webrtc::DesktopRegion& updated_region) { |
| scoped_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()); |
| } |
| |
| // Record the shape of the frame, if specified. |
| if (frame.shape()) { |
| packet->set_use_desktop_shape(true); |
| for (webrtc::DesktopRegion::Iterator r(*frame.shape()); |
| !r.IsAtEnd(); r.Advance()) { |
| Rect* rect = packet->add_desktop_shape_rects(); |
| rect->set_x(r.rect().left()); |
| rect->set_y(r.rect().top()); |
| rect->set_width(r.rect().width()); |
| rect->set_height(r.rect().height()); |
| } |
| } |
| |
| // Store the capture time and frame DPI. |
| packet->set_capture_time_ms(frame.capture_time_ms()); |
| 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.Pass(); |
| } |
| |
| } // namespace remoting |