Effects Pepper Plugin and MediaStream Glue.

content/renderer/media/video_destination_handler_unittest.cc

+// Copyright (c) 2013 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 <string>
+
+#include "base/utf_string_conversions.h"
+#include "content/renderer/media/media_stream_extra_data.h"
+#include "content/renderer/media/mock_media_stream_dependency_factory.h"
+#include "content/renderer/media/mock_media_stream_registry.h"
+#include "content/renderer/media/video_destination_handler.h"
+#include "ppapi/c/ppb_image_data.h"
+#include "ppapi/c/ppb_instance.h"
+#include "ppapi/c/pp_size.h"
+#include "ppapi/shared_impl/test_globals.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebMediaStreamTrack.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebString.h"
+#include "webkit/plugins/ppapi/ppb_image_data_impl.h"
+
+using cricket::CapturedFrame;
+using cricket::CaptureState;
+using cricket::VideoCapturer;
+using cricket::VideoFormat;
+using cricket::VideoFormatPod;
+using ppapi::TestGlobals;
+using webkit::ppapi::PPB_ImageData_Impl;
+
+namespace content {
+
+static const std::string kTestStreamUrl = "stream_url";
+static const std::string kUnknownStreamUrl = "unknown_stream_url";
+static const VideoFormatPod kTestFormat = {
+  640, 360, FPS_TO_INTERVAL(30), cricket::FOURCC_ANY
+};
+
+class PpFrameWriterTest
+    : public ::testing::Test,
+      public sigslot::has_slots<> {
+ public:
+  PpFrameWriterTest()
+      : last_capture_state_(cricket::CS_FAILED),
+        captured_frame_count_(0),
+        captured_frame_(NULL) {
+    writer_.SignalStateChange.connect(this, &PpFrameWriterTest::OnStateChange);
+    writer_.SignalFrameCaptured.connect(
+        this, &PpFrameWriterTest::OnFrameCaptured);
+  }
+
+  void OnStateChange(VideoCapturer* capturer, CaptureState state) {
+    last_capture_state_ = state;
+  }
+
+  void OnFrameCaptured(VideoCapturer* capturer, const CapturedFrame* frame) {
+    ++captured_frame_count_;
+    captured_frame_ = const_cast<CapturedFrame*>(frame);
+  }
+
+ protected:
+  PpFrameWriter writer_;
+  CaptureState last_capture_state_;
+  int captured_frame_count_;
+  CapturedFrame* captured_frame_;
+  TestGlobals globals_;
+};
+
+class VideoDestinationHandlerTest : public ::testing::Test {
+ public:
+  VideoDestinationHandlerTest() : registry_(&dependency_factory_) {
+    handler_.reset(new VideoDestinationHandler(&dependency_factory_,
+                                               &registry_));
+    dependency_factory_.EnsurePeerConnectionFactory();
+    registry_.Init(kTestStreamUrl);
+  }
+
+ protected:
+  scoped_ptr<VideoDestinationHandler> handler_;
+  MockMediaStreamDependencyFactory dependency_factory_;
+  MockMediaStreamRegistry registry_;
+};
+
+TEST_F(PpFrameWriterTest, StartStop) {
+  EXPECT_FALSE(writer_.IsRunning());
+  EXPECT_EQ(cricket::CS_STARTING, writer_.Start(VideoFormat(kTestFormat)));
+  EXPECT_TRUE(writer_.IsRunning());
+  EXPECT_EQ(cricket::CS_FAILED, writer_.Start(VideoFormat(kTestFormat)));
+  writer_.Stop();
+  EXPECT_EQ(cricket::CS_STOPPED, last_capture_state_);
+}
+
+TEST_F(PpFrameWriterTest, GetPreferredFourccs) {
+  std::vector<uint32> fourccs;
+  EXPECT_TRUE(writer_.GetPreferredFourccs(&fourccs));
+  EXPECT_EQ(1u, fourccs.size());
+  EXPECT_EQ(cricket::FOURCC_BGRA, fourccs[0]);
+}
+
+TEST_F(PpFrameWriterTest, GetBestCaptureFormat) {
+  VideoFormat desired(kTestFormat);
+  VideoFormat best_format;
+  EXPECT_FALSE(writer_.GetBestCaptureFormat(desired, NULL));
+  EXPECT_TRUE(writer_.GetBestCaptureFormat(desired, &best_format));
+  EXPECT_EQ(cricket::FOURCC_BGRA, best_format.fourcc);
+
+  desired.fourcc = best_format.fourcc;
+  EXPECT_EQ(desired, best_format);
+}
+
+TEST_F(PpFrameWriterTest, PutFrame) {
+  // TODO(ronghuawu): Figure out how to mock PPB_ImageData_Impl and enable
+  // this test.
+  //  PP_Instance instance = 0x1234561;
+  //  globals_.GetResourceTracker()->DidCreateInstance(instance);
+  //  PP_Size size = {640, 480};
+  //  PP_Bool init_to_zero = PP_TRUE;
+  //  PP_ImageDataFormat format = PP_IMAGEDATAFORMAT_BGRA_PREMUL;
+  //  scoped_refptr<PPB_ImageData_Impl>
+  //      data(new PPB_ImageData_Impl(instance, PPB_ImageData_Impl::NACL));
+  //  EXPECT_TRUE(data->Init(format, size.width, size.height, init_to_zero));
+  //  int64 ts_ns = 345678;
+  //
+  //  EXPECT_EQ(cricket::CS_STARTING, writer_.Start(VideoFormat(kTestFormat)));
+  //  EXPECT_EQ(0, captured_frame_count_);
+  //  writer_.PutFrame(data.get(), ts_ns);
+  //  EXPECT_EQ(1, captured_frame_count_);
+}
+
+TEST_F(VideoDestinationHandlerTest, Open) {
+  FrameWriterInterface* frame_writer = NULL;
+  // Unknow url will return false.
+  EXPECT_FALSE(handler_->Open(kUnknownStreamUrl, &frame_writer));
+  EXPECT_TRUE(handler_->Open(kTestStreamUrl, &frame_writer));
+  EXPECT_TRUE(frame_writer);
+
+  // Verify the video track has been added.
+  const WebKit::WebMediaStream test_stream = registry_.test_stream();
+  WebKit::WebVector<WebKit::WebMediaStreamTrack> video_tracks;
+  test_stream.videoSources(video_tracks);
+  EXPECT_EQ(1u, video_tracks.size());
+
+  // Verify the |frame_writer| has been set to the capturer of the video track.
+  MediaStreamExtraData* extra_data =
+      static_cast<MediaStreamExtraData*>(test_stream.extraData());
+  DCHECK(extra_data);
+  webrtc::MediaStreamInterface* native_stream = extra_data->stream();
+  DCHECK(native_stream);
+  webrtc::VideoTrackVector native_video_tracks =
+      native_stream->GetVideoTracks();
+  EXPECT_EQ(1u, native_video_tracks.size());
+  cricket::VideoCapturer* capturer =
+      native_video_tracks[0]->GetSource()->GetVideoCapturer();
+  EXPECT_EQ(static_cast<PpFrameWriter*>(capturer),
+            static_cast<PpFrameWriter*>(frame_writer));
+}
+
+}  // namespace content