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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 "base/memory/scoped_ptr.h"
#include "remoting/proto/video.pb.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_frame.h"
using webrtc::BasicDesktopFrame;
using webrtc::DesktopRect;
using webrtc::DesktopRegion;
using webrtc::DesktopSize;
using webrtc::DesktopVector;
namespace remoting {
TEST(VideoEncoderHelperTest, PropagatesCommonFields) {
BasicDesktopFrame frame(DesktopSize(32, 32));
frame.set_dpi(DesktopVector(96, 97));
frame.set_capture_time_ms(20);
frame.mutable_updated_region()->SetRect(DesktopRect::MakeLTRB(0, 0, 16, 16));
scoped_ptr<DesktopRegion> shape(
new DesktopRegion(DesktopRect::MakeLTRB(16, 0, 32, 16)));
frame.set_shape(shape.release());
VideoEncoderHelper helper;
scoped_ptr<VideoPacket> packet(helper.CreateVideoPacket(frame));
ASSERT_TRUE(packet->has_format());
EXPECT_FALSE(packet->format().has_encoding());
EXPECT_TRUE(packet->format().has_screen_width());
EXPECT_TRUE(packet->format().has_screen_height());
EXPECT_TRUE(packet->format().has_x_dpi());
EXPECT_TRUE(packet->format().has_y_dpi());
EXPECT_TRUE(packet->has_capture_time_ms());
EXPECT_EQ(1, packet->dirty_rects().size());
ASSERT_TRUE(packet->has_use_desktop_shape());
EXPECT_TRUE(packet->use_desktop_shape());
EXPECT_EQ(1, packet->desktop_shape_rects().size());
}
TEST(VideoEncoderHelperTest, ZeroDpi) {
BasicDesktopFrame frame(DesktopSize(32, 32));
// DPI is zero unless explicitly set.
VideoEncoderHelper helper;
scoped_ptr<VideoPacket> packet(helper.CreateVideoPacket(frame));
// Packet should have a format containing the screen dimensions only.
ASSERT_TRUE(packet->has_format());
EXPECT_TRUE(packet->format().has_screen_width());
EXPECT_TRUE(packet->format().has_screen_height());
EXPECT_FALSE(packet->format().has_x_dpi());
EXPECT_FALSE(packet->format().has_y_dpi());
}
TEST(VideoEncoderHelperTest, NoShape) {
BasicDesktopFrame frame(DesktopSize(32, 32));
VideoEncoderHelper helper;
scoped_ptr<VideoPacket> packet(helper.CreateVideoPacket(frame));
EXPECT_FALSE(packet->use_desktop_shape());
EXPECT_EQ(0, packet->desktop_shape_rects().size());
}
TEST(VideoEncoderHelperTest, NoScreenSizeIfUnchanged) {
BasicDesktopFrame frame(DesktopSize(32, 32));
// Set DPI so that the packet will have a format, with DPI but no size.
frame.set_dpi(DesktopVector(96, 97));
VideoEncoderHelper helper;
scoped_ptr<VideoPacket> packet(helper.CreateVideoPacket(frame));
packet = helper.CreateVideoPacket(frame);
ASSERT_TRUE(packet->has_format());
EXPECT_FALSE(packet->format().has_screen_width());
EXPECT_FALSE(packet->format().has_screen_height());
EXPECT_TRUE(packet->format().has_x_dpi());
EXPECT_TRUE(packet->format().has_y_dpi());
}
TEST(VideoEncoderHelperTest, ScreenSizeWhenChanged) {
VideoEncoderHelper helper;
// Process the same frame twice, so the helper knows the current size, and
// to trigger suppression of the size field due to the size not changing.
BasicDesktopFrame frame1(DesktopSize(32, 32));
scoped_ptr<VideoPacket> packet(helper.CreateVideoPacket(frame1));
packet = helper.CreateVideoPacket(frame1);
// Process a different-sized frame to trigger size to be emitted.
BasicDesktopFrame frame2(DesktopSize(48, 48));
packet = helper.CreateVideoPacket(frame2);
ASSERT_TRUE(packet->has_format());
EXPECT_TRUE(packet->format().has_screen_width());
EXPECT_TRUE(packet->format().has_screen_height());
}
} // namespace remoting
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