remoting/codec/video_encoder_helper_unittest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "remoting/codec/video_encoder_helper.h"
   6
   7 #include "base/memory/scoped_ptr.h"
   8 #include "remoting/proto/video.pb.h"
   9 #include "testing/gtest/include/gtest/gtest.h"
  10 #include "third_party/webrtc/modules/desktop_capture/desktop_frame.h"
  11
  12 using webrtc::BasicDesktopFrame;
  13 using webrtc::DesktopRect;
  14 using webrtc::DesktopRegion;
  15 using webrtc::DesktopSize;
  16 using webrtc::DesktopVector;
  17
  18 namespace remoting {
  19
  20 TEST(VideoEncoderHelperTest, PropagatesCommonFields) {
  21   BasicDesktopFrame frame(DesktopSize(32, 32));
  22   frame.set_dpi(DesktopVector(96, 97));
  23   frame.set_capture_time_ms(20);
  24   frame.mutable_updated_region()->SetRect(DesktopRect::MakeLTRB(0, 0, 16, 16));
  25   scoped_ptr<DesktopRegion> shape(
  26       new DesktopRegion(DesktopRect::MakeLTRB(16, 0, 32, 16)));
  27   frame.set_shape(shape.release());
  28
  29   VideoEncoderHelper helper;
  30   scoped_ptr<VideoPacket> packet(helper.CreateVideoPacket(frame));
  31
  32   ASSERT_TRUE(packet->has_format());
  33   EXPECT_FALSE(packet->format().has_encoding());
  34   EXPECT_TRUE(packet->format().has_screen_width());
  35   EXPECT_TRUE(packet->format().has_screen_height());
  36   EXPECT_TRUE(packet->format().has_x_dpi());
  37   EXPECT_TRUE(packet->format().has_y_dpi());
  38
  39   EXPECT_TRUE(packet->has_capture_time_ms());
  40   EXPECT_EQ(1, packet->dirty_rects().size());
  41
  42   ASSERT_TRUE(packet->has_use_desktop_shape());
  43   EXPECT_TRUE(packet->use_desktop_shape());
  44
  45   EXPECT_EQ(1, packet->desktop_shape_rects().size());
  46 }
  47
  48 TEST(VideoEncoderHelperTest, ZeroDpi) {
  49   BasicDesktopFrame frame(DesktopSize(32, 32));
  50   // DPI is zero unless explicitly set.
  51
  52   VideoEncoderHelper helper;
  53   scoped_ptr<VideoPacket> packet(helper.CreateVideoPacket(frame));
  54
  55   // Packet should have a format containing the screen dimensions only.
  56   ASSERT_TRUE(packet->has_format());
  57   EXPECT_TRUE(packet->format().has_screen_width());
  58   EXPECT_TRUE(packet->format().has_screen_height());
  59   EXPECT_FALSE(packet->format().has_x_dpi());
  60   EXPECT_FALSE(packet->format().has_y_dpi());
  61 }
  62
  63 TEST(VideoEncoderHelperTest, NoShape) {
  64   BasicDesktopFrame frame(DesktopSize(32, 32));
  65
  66   VideoEncoderHelper helper;
  67   scoped_ptr<VideoPacket> packet(helper.CreateVideoPacket(frame));
  68
  69   EXPECT_FALSE(packet->use_desktop_shape());
  70   EXPECT_EQ(0, packet->desktop_shape_rects().size());
  71 }
  72
  73 TEST(VideoEncoderHelperTest, NoScreenSizeIfUnchanged) {
  74   BasicDesktopFrame frame(DesktopSize(32, 32));
  75   // Set DPI so that the packet will have a format, with DPI but no size.
  76   frame.set_dpi(DesktopVector(96, 97));
  77
  78   VideoEncoderHelper helper;
  79   scoped_ptr<VideoPacket> packet(helper.CreateVideoPacket(frame));
  80   packet = helper.CreateVideoPacket(frame);
  81
  82   ASSERT_TRUE(packet->has_format());
  83   EXPECT_FALSE(packet->format().has_screen_width());
  84   EXPECT_FALSE(packet->format().has_screen_height());
  85   EXPECT_TRUE(packet->format().has_x_dpi());
  86   EXPECT_TRUE(packet->format().has_y_dpi());
  87 }
  88
  89 TEST(VideoEncoderHelperTest, ScreenSizeWhenChanged) {
  90   VideoEncoderHelper helper;
  91
  92   // Process the same frame twice, so the helper knows the current size, and
  93   // to trigger suppression of the size field due to the size not changing.
  94   BasicDesktopFrame frame1(DesktopSize(32, 32));
  95   scoped_ptr<VideoPacket> packet(helper.CreateVideoPacket(frame1));
  96   packet = helper.CreateVideoPacket(frame1);
  97
  98   // Process a different-sized frame to trigger size to be emitted.
  99   BasicDesktopFrame frame2(DesktopSize(48, 48));
 100   packet = helper.CreateVideoPacket(frame2);
 101
 102   ASSERT_TRUE(packet->has_format());
 103   EXPECT_TRUE(packet->format().has_screen_width());
 104   EXPECT_TRUE(packet->format().has_screen_height());
 105 }
 106
 107 }  // namespace remoting