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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 <stdint.h>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/callback.h"
#include "base/message_loop/message_loop.h"
#include "base/run_loop.h"
#include "base/strings/utf_string_conversions.h"
#include "base/threading/thread_checker_impl.h"
#include "content/child/child_process.h"
#include "content/renderer/media/media_stream_video_track.h"
#include "content/renderer/media/mock_media_stream_video_sink.h"
#include "content/renderer/media/mock_media_stream_video_source.h"
#include "media/base/video_frame.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/WebKit/public/web/WebHeap.h"
namespace content {
const uint8_t kBlackValue = 0x00;
const uint8_t kColorValue = 0xAB;
ACTION_P(RunClosure, closure) {
closure.Run();
}
class MediaStreamVideoTrackTest : public ::testing::Test {
public:
MediaStreamVideoTrackTest()
: child_process_(new ChildProcess()),
mock_source_(new MockMediaStreamVideoSource(false)),
source_started_(false) {
blink_source_.initialize(base::UTF8ToUTF16("dummy_source_id"),
blink::WebMediaStreamSource::TypeVideo,
base::UTF8ToUTF16("dummy_source_name"),
false /* remote */, true /* readonly */);
blink_source_.setExtraData(mock_source_);
}
~MediaStreamVideoTrackTest() override {}
void TearDown() override {
blink_source_.reset();
blink::WebHeap::collectAllGarbageForTesting();
}
void DeliverVideoFrameAndWaitForRenderer(MockMediaStreamVideoSink* sink) {
base::RunLoop run_loop;
base::Closure quit_closure = run_loop.QuitClosure();
EXPECT_CALL(*sink, OnVideoFrame()).WillOnce(RunClosure(quit_closure));
const scoped_refptr<media::VideoFrame> frame =
media::VideoFrame::CreateColorFrame(
gfx::Size(MediaStreamVideoSource::kDefaultWidth,
MediaStreamVideoSource::kDefaultHeight),
kColorValue, kColorValue, kColorValue, base::TimeDelta());
mock_source()->DeliverVideoFrame(frame);
run_loop.Run();
}
protected:
base::MessageLoop* io_message_loop() const {
return child_process_->io_message_loop();
}
// Create a track that's associated with |mock_source_|.
blink::WebMediaStreamTrack CreateTrack() {
blink::WebMediaConstraints constraints;
constraints.initialize();
const bool enabled = true;
blink::WebMediaStreamTrack track =
MediaStreamVideoTrack::CreateVideoTrack(
mock_source_, constraints,
MediaStreamSource::ConstraintsCallback(), enabled);
if (!source_started_) {
mock_source_->StartMockedSource();
source_started_ = true;
}
return track;
}
MockMediaStreamVideoSource* mock_source() { return mock_source_; }
const blink::WebMediaStreamSource& blink_source() const {
return blink_source_;
}
private:
const base::MessageLoopForUI message_loop_;
const scoped_ptr<ChildProcess> child_process_;
blink::WebMediaStreamSource blink_source_;
// |mock_source_| is owned by |webkit_source_|.
MockMediaStreamVideoSource* mock_source_;
bool source_started_;
};
TEST_F(MediaStreamVideoTrackTest, AddAndRemoveSink) {
MockMediaStreamVideoSink sink;
blink::WebMediaStreamTrack track = CreateTrack();
MediaStreamVideoSink::AddToVideoTrack(&sink, sink.GetDeliverFrameCB(), track);
DeliverVideoFrameAndWaitForRenderer(&sink);
EXPECT_EQ(1, sink.number_of_frames());
DeliverVideoFrameAndWaitForRenderer(&sink);
MediaStreamVideoSink::RemoveFromVideoTrack(&sink, track);
scoped_refptr<media::VideoFrame> frame =
media::VideoFrame::CreateBlackFrame(
gfx::Size(MediaStreamVideoSource::kDefaultWidth,
MediaStreamVideoSource::kDefaultHeight));
mock_source()->DeliverVideoFrame(frame);
// Wait for the IO thread to complete delivering frames.
io_message_loop()->RunUntilIdle();
EXPECT_EQ(2, sink.number_of_frames());
}
class CheckThreadHelper {
public:
CheckThreadHelper(base::Closure callback, bool* correct)
: callback_(callback),
correct_(correct) {
}
~CheckThreadHelper() {
*correct_ = thread_checker_.CalledOnValidThread();
callback_.Run();
}
private:
base::Closure callback_;
bool* correct_;
base::ThreadCheckerImpl thread_checker_;
};
void CheckThreadVideoFrameReceiver(
CheckThreadHelper* helper,
const scoped_refptr<media::VideoFrame>& frame,
base::TimeTicks estimated_capture_time) {
// Do nothing.
}
// Checks that the callback given to the track is reset on the right thread.
TEST_F(MediaStreamVideoTrackTest, ResetCallbackOnThread) {
MockMediaStreamVideoSink sink;
blink::WebMediaStreamTrack track = CreateTrack();
base::RunLoop run_loop;
bool correct = false;
MediaStreamVideoSink::AddToVideoTrack(
&sink,
base::Bind(
&CheckThreadVideoFrameReceiver,
base::Owned(new CheckThreadHelper(run_loop.QuitClosure(), &correct))),
track);
MediaStreamVideoSink::RemoveFromVideoTrack(&sink, track);
run_loop.Run();
EXPECT_TRUE(correct) << "Not called on correct thread.";
}
TEST_F(MediaStreamVideoTrackTest, SetEnabled) {
MockMediaStreamVideoSink sink;
blink::WebMediaStreamTrack track = CreateTrack();
MediaStreamVideoSink::AddToVideoTrack(&sink, sink.GetDeliverFrameCB(), track);
MediaStreamVideoTrack* video_track =
MediaStreamVideoTrack::GetVideoTrack(track);
DeliverVideoFrameAndWaitForRenderer(&sink);
EXPECT_EQ(1, sink.number_of_frames());
EXPECT_EQ(kColorValue, *sink.last_frame()->data(media::VideoFrame::kYPlane));
video_track->SetEnabled(false);
EXPECT_FALSE(sink.enabled());
DeliverVideoFrameAndWaitForRenderer(&sink);
EXPECT_EQ(2, sink.number_of_frames());
EXPECT_EQ(kBlackValue, *sink.last_frame()->data(media::VideoFrame::kYPlane));
video_track->SetEnabled(true);
EXPECT_TRUE(sink.enabled());
DeliverVideoFrameAndWaitForRenderer(&sink);
EXPECT_EQ(3, sink.number_of_frames());
EXPECT_EQ(kColorValue, *sink.last_frame()->data(media::VideoFrame::kYPlane));
MediaStreamVideoSink::RemoveFromVideoTrack(&sink, track);
}
TEST_F(MediaStreamVideoTrackTest, SourceStopped) {
MockMediaStreamVideoSink sink;
blink::WebMediaStreamTrack track = CreateTrack();
MediaStreamVideoSink::AddToVideoTrack(&sink, sink.GetDeliverFrameCB(), track);
EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateLive, sink.state());
mock_source()->StopSource();
EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateEnded, sink.state());
MediaStreamVideoSink::RemoveFromVideoTrack(&sink, track);
}
TEST_F(MediaStreamVideoTrackTest, StopLastTrack) {
MockMediaStreamVideoSink sink1;
blink::WebMediaStreamTrack track1 = CreateTrack();
MediaStreamVideoSink::AddToVideoTrack(
&sink1, sink1.GetDeliverFrameCB(), track1);
EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateLive, sink1.state());
EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateLive,
blink_source().getReadyState());
MockMediaStreamVideoSink sink2;
blink::WebMediaStreamTrack track2 = CreateTrack();
MediaStreamVideoSink::AddToVideoTrack(
&sink2, sink2.GetDeliverFrameCB(), track2);
EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateLive, sink2.state());
MediaStreamVideoTrack* const native_track1 =
MediaStreamVideoTrack::GetVideoTrack(track1);
native_track1->Stop();
EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateEnded, sink1.state());
EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateLive,
blink_source().getReadyState());
MediaStreamVideoSink::RemoveFromVideoTrack(&sink1, track1);
MediaStreamVideoTrack* const native_track2 =
MediaStreamVideoTrack::GetVideoTrack(track2);
native_track2->Stop();
EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateEnded, sink2.state());
EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateEnded,
blink_source().getReadyState());
MediaStreamVideoSink::RemoveFromVideoTrack(&sink2, track2);
}
} // namespace content
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