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/*
* Copyright 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "pc/video_track.h"
#include <memory>
#include "media/base/fake_frame_source.h"
#include "pc/test/fake_video_track_renderer.h"
#include "pc/test/fake_video_track_source.h"
#include "pc/video_track_source.h"
#include "rtc_base/time_utils.h"
#include "test/gtest.h"
using webrtc::FakeVideoTrackRenderer;
using webrtc::FakeVideoTrackSource;
using webrtc::MediaSourceInterface;
using webrtc::MediaStreamTrackInterface;
using webrtc::VideoTrack;
using webrtc::VideoTrackInterface;
using webrtc::VideoTrackSource;
class VideoTrackTest : public ::testing::Test {
public:
VideoTrackTest() : frame_source_(640, 480, rtc::kNumMicrosecsPerSec / 30) {
static const char kVideoTrackId[] = "track_id";
video_track_source_ = rtc::make_ref_counted<FakeVideoTrackSource>(
/*is_screencast=*/false);
video_track_ = VideoTrack::Create(kVideoTrackId, video_track_source_,
rtc::Thread::Current());
}
protected:
rtc::AutoThread main_thread_;
rtc::scoped_refptr<FakeVideoTrackSource> video_track_source_;
rtc::scoped_refptr<VideoTrack> video_track_;
cricket::FakeFrameSource frame_source_;
};
// VideoTrack::Create will create an API proxy around the source object.
// The `GetSource` method provides access to the proxy object intented for API
// use while the GetSourceInternal() provides direct access to the source object
// as provided to the `VideoTrack::Create` factory function.
TEST_F(VideoTrackTest, CheckApiProxyAndInternalSource) {
EXPECT_NE(video_track_->GetSource(), video_track_source_.get());
EXPECT_EQ(video_track_->GetSourceInternal(), video_track_source_.get());
}
// Test changing the source state also changes the track state.
TEST_F(VideoTrackTest, SourceStateChangeTrackState) {
EXPECT_EQ(MediaStreamTrackInterface::kLive, video_track_->state());
video_track_source_->SetState(MediaSourceInterface::kEnded);
EXPECT_EQ(MediaStreamTrackInterface::kEnded, video_track_->state());
}
// Test adding renderers to a video track and render to them by providing
// frames to the source.
TEST_F(VideoTrackTest, RenderVideo) {
// FakeVideoTrackRenderer register itself to `video_track_`
std::unique_ptr<FakeVideoTrackRenderer> renderer_1(
new FakeVideoTrackRenderer(video_track_.get()));
video_track_source_->InjectFrame(frame_source_.GetFrame());
EXPECT_EQ(1, renderer_1->num_rendered_frames());
// FakeVideoTrackRenderer register itself to `video_track_`
std::unique_ptr<FakeVideoTrackRenderer> renderer_2(
new FakeVideoTrackRenderer(video_track_.get()));
video_track_source_->InjectFrame(frame_source_.GetFrame());
EXPECT_EQ(2, renderer_1->num_rendered_frames());
EXPECT_EQ(1, renderer_2->num_rendered_frames());
renderer_1.reset(nullptr);
video_track_source_->InjectFrame(frame_source_.GetFrame());
EXPECT_EQ(2, renderer_2->num_rendered_frames());
}
// Test that disabling the track results in blacked out frames.
TEST_F(VideoTrackTest, DisableTrackBlackout) {
std::unique_ptr<FakeVideoTrackRenderer> renderer(
new FakeVideoTrackRenderer(video_track_.get()));
video_track_source_->InjectFrame(frame_source_.GetFrame());
EXPECT_EQ(1, renderer->num_rendered_frames());
EXPECT_FALSE(renderer->black_frame());
video_track_->set_enabled(false);
video_track_source_->InjectFrame(frame_source_.GetFrame());
EXPECT_EQ(2, renderer->num_rendered_frames());
EXPECT_TRUE(renderer->black_frame());
video_track_->set_enabled(true);
video_track_source_->InjectFrame(frame_source_.GetFrame());
EXPECT_EQ(3, renderer->num_rendered_frames());
EXPECT_FALSE(renderer->black_frame());
}
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