492 lines
18 KiB
C++
492 lines
18 KiB
C++
/*
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* Copyright 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <memory>
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#include <string>
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#include <vector>
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#include "webrtc/api/test/fakeconstraints.h"
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#include "webrtc/api/videocapturertracksource.h"
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#include "webrtc/base/gunit.h"
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#include "webrtc/media/base/fakemediaengine.h"
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#include "webrtc/media/base/fakevideocapturer.h"
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#include "webrtc/media/base/fakevideorenderer.h"
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#include "webrtc/media/engine/webrtcvideoframe.h"
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using webrtc::FakeConstraints;
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using webrtc::VideoCapturerTrackSource;
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using webrtc::MediaConstraintsInterface;
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using webrtc::MediaSourceInterface;
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using webrtc::ObserverInterface;
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using webrtc::VideoTrackSourceInterface;
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namespace {
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// Max wait time for a test.
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const int kMaxWaitMs = 100;
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} // anonymous namespace
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// TestVideoCapturer extends cricket::FakeVideoCapturer so it can be used for
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// testing without known camera formats.
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// It keeps its own lists of cricket::VideoFormats for the unit tests in this
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// file.
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class TestVideoCapturer : public cricket::FakeVideoCapturer {
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public:
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explicit TestVideoCapturer(bool is_screencast)
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: FakeVideoCapturer(is_screencast), test_without_formats_(false) {
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std::vector<cricket::VideoFormat> formats;
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formats.push_back(
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cricket::VideoFormat(1280, 720, cricket::VideoFormat::FpsToInterval(30),
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cricket::FOURCC_I420));
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formats.push_back(
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cricket::VideoFormat(640, 480, cricket::VideoFormat::FpsToInterval(30),
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cricket::FOURCC_I420));
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formats.push_back(
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cricket::VideoFormat(640, 400, cricket::VideoFormat::FpsToInterval(30),
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cricket::FOURCC_I420));
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formats.push_back(
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cricket::VideoFormat(320, 240, cricket::VideoFormat::FpsToInterval(30),
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cricket::FOURCC_I420));
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formats.push_back(
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cricket::VideoFormat(352, 288, cricket::VideoFormat::FpsToInterval(30),
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cricket::FOURCC_I420));
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ResetSupportedFormats(formats);
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}
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// This function is used for resetting the supported capture formats and
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// simulating a cricket::VideoCapturer implementation that don't support
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// capture format enumeration. This is used to simulate the current
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// Chrome implementation.
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void TestWithoutCameraFormats() {
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test_without_formats_ = true;
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std::vector<cricket::VideoFormat> formats;
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ResetSupportedFormats(formats);
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}
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virtual cricket::CaptureState Start(
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const cricket::VideoFormat& capture_format) {
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if (test_without_formats_) {
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std::vector<cricket::VideoFormat> formats;
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formats.push_back(capture_format);
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ResetSupportedFormats(formats);
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}
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return FakeVideoCapturer::Start(capture_format);
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}
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virtual bool GetBestCaptureFormat(const cricket::VideoFormat& desired,
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cricket::VideoFormat* best_format) {
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if (test_without_formats_) {
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*best_format = desired;
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return true;
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}
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return FakeVideoCapturer::GetBestCaptureFormat(desired, best_format);
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}
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private:
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bool test_without_formats_;
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};
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class StateObserver : public ObserverInterface {
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public:
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explicit StateObserver(VideoTrackSourceInterface* source)
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: state_(source->state()), source_(source) {}
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virtual void OnChanged() { state_ = source_->state(); }
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MediaSourceInterface::SourceState state() const { return state_; }
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private:
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MediaSourceInterface::SourceState state_;
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rtc::scoped_refptr<VideoTrackSourceInterface> source_;
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};
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class VideoCapturerTrackSourceTest : public testing::Test {
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protected:
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VideoCapturerTrackSourceTest() { InitCapturer(false); }
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void InitCapturer(bool is_screencast) {
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capturer_cleanup_ = std::unique_ptr<TestVideoCapturer>(
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new TestVideoCapturer(is_screencast));
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capturer_ = capturer_cleanup_.get();
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}
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void InitScreencast() { InitCapturer(true); }
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void CreateVideoCapturerSource() { CreateVideoCapturerSource(NULL); }
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void CreateVideoCapturerSource(
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const webrtc::MediaConstraintsInterface* constraints) {
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// VideoSource take ownership of |capturer_|
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source_ = VideoCapturerTrackSource::Create(rtc::Thread::Current(),
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capturer_cleanup_.release(),
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constraints, false);
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ASSERT_TRUE(source_.get() != NULL);
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state_observer_.reset(new StateObserver(source_));
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source_->RegisterObserver(state_observer_.get());
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source_->AddOrUpdateSink(&renderer_, rtc::VideoSinkWants());
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}
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std::unique_ptr<TestVideoCapturer> capturer_cleanup_;
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TestVideoCapturer* capturer_;
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cricket::FakeVideoRenderer renderer_;
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std::unique_ptr<StateObserver> state_observer_;
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rtc::scoped_refptr<VideoTrackSourceInterface> source_;
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};
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// Test that a VideoSource transition to kLive state when the capture
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// device have started and kEnded if it is stopped.
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// It also test that an output can receive video frames.
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TEST_F(VideoCapturerTrackSourceTest, CapturerStartStop) {
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// Initialize without constraints.
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CreateVideoCapturerSource();
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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ASSERT_TRUE(capturer_->CaptureFrame());
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EXPECT_EQ(1, renderer_.num_rendered_frames());
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capturer_->Stop();
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EXPECT_EQ_WAIT(MediaSourceInterface::kEnded, state_observer_->state(),
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kMaxWaitMs);
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}
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// Test that a VideoSource can be stopped and restarted.
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TEST_F(VideoCapturerTrackSourceTest, StopRestart) {
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// Initialize without constraints.
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CreateVideoCapturerSource();
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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ASSERT_TRUE(capturer_->CaptureFrame());
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EXPECT_EQ(1, renderer_.num_rendered_frames());
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source_->Stop();
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EXPECT_EQ_WAIT(MediaSourceInterface::kEnded, state_observer_->state(),
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kMaxWaitMs);
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source_->Restart();
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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ASSERT_TRUE(capturer_->CaptureFrame());
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EXPECT_EQ(2, renderer_.num_rendered_frames());
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source_->Stop();
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}
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// Test that a VideoSource transition to kEnded if the capture device
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// fails.
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TEST_F(VideoCapturerTrackSourceTest, CameraFailed) {
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CreateVideoCapturerSource();
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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capturer_->SignalStateChange(capturer_, cricket::CS_FAILED);
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EXPECT_EQ_WAIT(MediaSourceInterface::kEnded, state_observer_->state(),
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kMaxWaitMs);
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}
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// Test that the capture output is CIF if we set max constraints to CIF.
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// and the capture device support CIF.
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TEST_F(VideoCapturerTrackSourceTest, MandatoryConstraintCif5Fps) {
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FakeConstraints constraints;
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constraints.AddMandatory(MediaConstraintsInterface::kMaxWidth, 352);
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constraints.AddMandatory(MediaConstraintsInterface::kMaxHeight, 288);
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constraints.AddMandatory(MediaConstraintsInterface::kMaxFrameRate, 5);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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const cricket::VideoFormat* format = capturer_->GetCaptureFormat();
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ASSERT_TRUE(format != NULL);
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EXPECT_EQ(352, format->width);
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EXPECT_EQ(288, format->height);
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EXPECT_EQ(30, format->framerate());
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}
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// Test that the capture output is 720P if the camera support it and the
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// optional constraint is set to 720P.
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TEST_F(VideoCapturerTrackSourceTest, MandatoryMinVgaOptional720P) {
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FakeConstraints constraints;
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constraints.AddMandatory(MediaConstraintsInterface::kMinWidth, 640);
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constraints.AddMandatory(MediaConstraintsInterface::kMinHeight, 480);
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constraints.AddOptional(MediaConstraintsInterface::kMinWidth, 1280);
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constraints.AddOptional(MediaConstraintsInterface::kMinAspectRatio,
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1280.0 / 720);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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const cricket::VideoFormat* format = capturer_->GetCaptureFormat();
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ASSERT_TRUE(format != NULL);
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EXPECT_EQ(1280, format->width);
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EXPECT_EQ(720, format->height);
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EXPECT_EQ(30, format->framerate());
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}
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// Test that the capture output have aspect ratio 4:3 if a mandatory constraint
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// require it even if an optional constraint request a higher resolution
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// that don't have this aspect ratio.
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TEST_F(VideoCapturerTrackSourceTest, MandatoryAspectRatio4To3) {
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FakeConstraints constraints;
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constraints.AddMandatory(MediaConstraintsInterface::kMinWidth, 640);
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constraints.AddMandatory(MediaConstraintsInterface::kMinHeight, 480);
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constraints.AddMandatory(MediaConstraintsInterface::kMaxAspectRatio,
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640.0 / 480);
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constraints.AddOptional(MediaConstraintsInterface::kMinWidth, 1280);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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const cricket::VideoFormat* format = capturer_->GetCaptureFormat();
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ASSERT_TRUE(format != NULL);
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EXPECT_EQ(640, format->width);
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EXPECT_EQ(480, format->height);
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EXPECT_EQ(30, format->framerate());
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}
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// Test that the source state transition to kEnded if the mandatory aspect ratio
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// is set higher than supported.
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TEST_F(VideoCapturerTrackSourceTest, MandatoryAspectRatioTooHigh) {
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FakeConstraints constraints;
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constraints.AddMandatory(MediaConstraintsInterface::kMinAspectRatio, 2);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kEnded, state_observer_->state(),
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kMaxWaitMs);
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}
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// Test that the source ignores an optional aspect ratio that is higher than
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// supported.
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TEST_F(VideoCapturerTrackSourceTest, OptionalAspectRatioTooHigh) {
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FakeConstraints constraints;
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constraints.AddOptional(MediaConstraintsInterface::kMinAspectRatio, 2);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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const cricket::VideoFormat* format = capturer_->GetCaptureFormat();
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ASSERT_TRUE(format != NULL);
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double aspect_ratio = static_cast<double>(format->width) / format->height;
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EXPECT_LT(aspect_ratio, 2);
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}
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// Test that the source starts video with the default resolution if the
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// camera doesn't support capability enumeration and there are no constraints.
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TEST_F(VideoCapturerTrackSourceTest, NoCameraCapability) {
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capturer_->TestWithoutCameraFormats();
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CreateVideoCapturerSource();
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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const cricket::VideoFormat* format = capturer_->GetCaptureFormat();
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ASSERT_TRUE(format != NULL);
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EXPECT_EQ(640, format->width);
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EXPECT_EQ(480, format->height);
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EXPECT_EQ(30, format->framerate());
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}
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// Test that the source can start the video and get the requested aspect ratio
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// if the camera doesn't support capability enumeration and the aspect ratio is
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// set.
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TEST_F(VideoCapturerTrackSourceTest, NoCameraCapability16To9Ratio) {
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capturer_->TestWithoutCameraFormats();
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FakeConstraints constraints;
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double requested_aspect_ratio = 640.0 / 360;
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constraints.AddMandatory(MediaConstraintsInterface::kMinWidth, 640);
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constraints.AddMandatory(MediaConstraintsInterface::kMinAspectRatio,
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requested_aspect_ratio);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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const cricket::VideoFormat* format = capturer_->GetCaptureFormat();
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double aspect_ratio = static_cast<double>(format->width) / format->height;
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EXPECT_LE(requested_aspect_ratio, aspect_ratio);
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}
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// Test that the source state transitions to kEnded if an unknown mandatory
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// constraint is found.
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TEST_F(VideoCapturerTrackSourceTest, InvalidMandatoryConstraint) {
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FakeConstraints constraints;
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constraints.AddMandatory("weird key", 640);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kEnded, state_observer_->state(),
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kMaxWaitMs);
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}
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// Test that the source ignores an unknown optional constraint.
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TEST_F(VideoCapturerTrackSourceTest, InvalidOptionalConstraint) {
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FakeConstraints constraints;
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constraints.AddOptional("weird key", 640);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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}
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TEST_F(VideoCapturerTrackSourceTest, SetValidDenoisingConstraint) {
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FakeConstraints constraints;
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constraints.AddMandatory(MediaConstraintsInterface::kNoiseReduction, "false");
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ(rtc::Optional<bool>(false), source_->needs_denoising());
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}
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TEST_F(VideoCapturerTrackSourceTest, NoiseReductionConstraintNotSet) {
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FakeConstraints constraints;
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ(rtc::Optional<bool>(), source_->needs_denoising());
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}
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TEST_F(VideoCapturerTrackSourceTest,
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MandatoryDenoisingConstraintOverridesOptional) {
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FakeConstraints constraints;
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constraints.AddMandatory(MediaConstraintsInterface::kNoiseReduction, false);
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constraints.AddOptional(MediaConstraintsInterface::kNoiseReduction, true);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ(rtc::Optional<bool>(false), source_->needs_denoising());
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}
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TEST_F(VideoCapturerTrackSourceTest, NoiseReductionAndInvalidKeyOptional) {
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FakeConstraints constraints;
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constraints.AddOptional(MediaConstraintsInterface::kNoiseReduction, true);
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constraints.AddOptional("invalidKey", false);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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EXPECT_EQ(rtc::Optional<bool>(true), source_->needs_denoising());
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}
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TEST_F(VideoCapturerTrackSourceTest, NoiseReductionAndInvalidKeyMandatory) {
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FakeConstraints constraints;
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constraints.AddMandatory(MediaConstraintsInterface::kNoiseReduction, false);
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constraints.AddMandatory("invalidKey", false);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kEnded, state_observer_->state(),
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kMaxWaitMs);
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EXPECT_EQ(rtc::Optional<bool>(), source_->needs_denoising());
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}
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TEST_F(VideoCapturerTrackSourceTest, InvalidDenoisingValueOptional) {
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FakeConstraints constraints;
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constraints.AddOptional(MediaConstraintsInterface::kNoiseReduction,
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"not a boolean");
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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EXPECT_EQ(rtc::Optional<bool>(), source_->needs_denoising());
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}
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TEST_F(VideoCapturerTrackSourceTest, InvalidDenoisingValueMandatory) {
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FakeConstraints constraints;
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// Optional constraints should be ignored if the mandatory constraints fail.
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constraints.AddOptional(MediaConstraintsInterface::kNoiseReduction, "false");
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// Values are case-sensitive and must be all lower-case.
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constraints.AddMandatory(MediaConstraintsInterface::kNoiseReduction, "True");
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kEnded, state_observer_->state(),
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kMaxWaitMs);
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EXPECT_EQ(rtc::Optional<bool>(), source_->needs_denoising());
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}
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TEST_F(VideoCapturerTrackSourceTest, MixedOptionsAndConstraints) {
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FakeConstraints constraints;
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constraints.AddMandatory(MediaConstraintsInterface::kMaxWidth, 352);
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constraints.AddMandatory(MediaConstraintsInterface::kMaxHeight, 288);
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constraints.AddOptional(MediaConstraintsInterface::kMaxFrameRate, 5);
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constraints.AddMandatory(MediaConstraintsInterface::kNoiseReduction, false);
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constraints.AddOptional(MediaConstraintsInterface::kNoiseReduction, true);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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const cricket::VideoFormat* format = capturer_->GetCaptureFormat();
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ASSERT_TRUE(format != NULL);
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EXPECT_EQ(352, format->width);
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EXPECT_EQ(288, format->height);
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EXPECT_EQ(30, format->framerate());
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EXPECT_EQ(rtc::Optional<bool>(false), source_->needs_denoising());
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}
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// Tests that the source starts video with the default resolution for
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// screencast if no constraint is set.
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TEST_F(VideoCapturerTrackSourceTest, ScreencastResolutionNoConstraint) {
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InitScreencast();
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capturer_->TestWithoutCameraFormats();
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CreateVideoCapturerSource();
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ASSERT_TRUE(source_->is_screencast());
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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const cricket::VideoFormat* format = capturer_->GetCaptureFormat();
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ASSERT_TRUE(format != NULL);
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EXPECT_EQ(640, format->width);
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EXPECT_EQ(480, format->height);
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EXPECT_EQ(30, format->framerate());
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}
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// Tests that the source starts video with the max width and height set by
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// constraints for screencast.
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TEST_F(VideoCapturerTrackSourceTest, ScreencastResolutionWithConstraint) {
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FakeConstraints constraints;
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constraints.AddMandatory(MediaConstraintsInterface::kMaxWidth, 480);
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constraints.AddMandatory(MediaConstraintsInterface::kMaxHeight, 270);
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InitScreencast();
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capturer_->TestWithoutCameraFormats();
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CreateVideoCapturerSource(&constraints);
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ASSERT_TRUE(source_->is_screencast());
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EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
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kMaxWaitMs);
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const cricket::VideoFormat* format = capturer_->GetCaptureFormat();
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ASSERT_TRUE(format != NULL);
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EXPECT_EQ(480, format->width);
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EXPECT_EQ(270, format->height);
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EXPECT_EQ(30, format->framerate());
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}
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TEST_F(VideoCapturerTrackSourceTest, MandatorySubOneFpsConstraints) {
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FakeConstraints constraints;
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constraints.AddMandatory(MediaConstraintsInterface::kMaxFrameRate, 0.5);
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CreateVideoCapturerSource(&constraints);
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EXPECT_EQ_WAIT(MediaSourceInterface::kEnded, state_observer_->state(),
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kMaxWaitMs);
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ASSERT_TRUE(capturer_->GetCaptureFormat() == NULL);
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}
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|
|
|
TEST_F(VideoCapturerTrackSourceTest, OptionalSubOneFpsConstraints) {
|
|
FakeConstraints constraints;
|
|
constraints.AddOptional(MediaConstraintsInterface::kMaxFrameRate, 0.5);
|
|
|
|
CreateVideoCapturerSource(&constraints);
|
|
EXPECT_EQ_WAIT(MediaSourceInterface::kLive, state_observer_->state(),
|
|
kMaxWaitMs);
|
|
const cricket::VideoFormat* format = capturer_->GetCaptureFormat();
|
|
ASSERT_TRUE(format != NULL);
|
|
EXPECT_EQ(30, format->framerate());
|
|
}
|