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/*
* Copyright (c) 2008 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 <stdio.h>
#include <memory>
#include <vector>
#include "webrtc/base/gunit.h"
#include "webrtc/base/logging.h"
#include "webrtc/base/thread.h"
#include "webrtc/media/base/fakevideocapturer.h"
#include "webrtc/media/base/fakevideorenderer.h"
#include "webrtc/media/base/testutils.h"
#include "webrtc/media/base/videocapturer.h"
using cricket::FakeVideoCapturer;
namespace {
const int kMsCallbackWait = 500;
// For HD only the height matters.
const int kMinHdHeight = 720;
} // namespace
class VideoCapturerTest
: public sigslot::has_slots<>,
public testing::Test {
public:
VideoCapturerTest()
: capture_state_(cricket::CS_STOPPED), num_state_changes_(0) {
InitCapturer(false);
}
protected:
void InitCapturer(bool is_screencast) {
capturer_ = std::unique_ptr<FakeVideoCapturer>(
new FakeVideoCapturer(is_screencast));
capturer_->SignalStateChange.connect(this,
&VideoCapturerTest::OnStateChange);
capturer_->AddOrUpdateSink(&renderer_, rtc::VideoSinkWants());
}
void InitScreencast() { InitCapturer(true); }
void OnStateChange(cricket::VideoCapturer*,
cricket::CaptureState capture_state) {
capture_state_ = capture_state;
++num_state_changes_;
}
cricket::CaptureState capture_state() { return capture_state_; }
int num_state_changes() { return num_state_changes_; }
std::unique_ptr<cricket::FakeVideoCapturer> capturer_;
cricket::CaptureState capture_state_;
int num_state_changes_;
cricket::FakeVideoRenderer renderer_;
bool expects_rotation_applied_;
};
TEST_F(VideoCapturerTest, CaptureState) {
EXPECT_TRUE(capturer_->enable_video_adapter());
EXPECT_EQ(cricket::CS_RUNNING, capturer_->Start(cricket::VideoFormat(
640,
480,
cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420)));
EXPECT_TRUE(capturer_->IsRunning());
EXPECT_EQ_WAIT(cricket::CS_RUNNING, capture_state(), kMsCallbackWait);
EXPECT_EQ(1, num_state_changes());
capturer_->Stop();
EXPECT_EQ_WAIT(cricket::CS_STOPPED, capture_state(), kMsCallbackWait);
EXPECT_EQ(2, num_state_changes());
capturer_->Stop();
rtc::Thread::Current()->ProcessMessages(100);
EXPECT_EQ(2, num_state_changes());
}
TEST_F(VideoCapturerTest, ScreencastScaledOddWidth) {
InitScreencast();
int kWidth = 1281;
int kHeight = 720;
std::vector<cricket::VideoFormat> formats;
formats.push_back(cricket::VideoFormat(kWidth, kHeight,
cricket::VideoFormat::FpsToInterval(5),
cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(formats);
EXPECT_EQ(cricket::CS_RUNNING,
capturer_->Start(cricket::VideoFormat(
kWidth, kHeight, cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_ANY)));
EXPECT_TRUE(capturer_->IsRunning());
EXPECT_EQ(0, renderer_.num_rendered_frames());
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(1, renderer_.num_rendered_frames());
EXPECT_EQ(kWidth, renderer_.width());
EXPECT_EQ(kHeight, renderer_.height());
}
TEST_F(VideoCapturerTest, TestRotationAppliedBySource) {
int kWidth = 800;
int kHeight = 400;
int frame_count = 0;
std::vector<cricket::VideoFormat> formats;
formats.push_back(cricket::VideoFormat(kWidth, kHeight,
cricket::VideoFormat::FpsToInterval(5),
cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(formats);
rtc::VideoSinkWants wants;
// |capturer_| should compensate rotation.
wants.rotation_applied = true;
capturer_->AddOrUpdateSink(&renderer_, wants);
// capturer_ should compensate rotation as default.
EXPECT_EQ(cricket::CS_RUNNING,
capturer_->Start(cricket::VideoFormat(
kWidth, kHeight, cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420)));
EXPECT_TRUE(capturer_->IsRunning());
EXPECT_EQ(0, renderer_.num_rendered_frames());
// If the frame's rotation is compensated anywhere in the pipeline based on
// the rotation information, the renderer should be given the right dimension
// such that the frame could be rendered.
capturer_->SetRotation(webrtc::kVideoRotation_90);
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(++frame_count, renderer_.num_rendered_frames());
// Swapped width and height
EXPECT_EQ(kWidth, renderer_.height());
EXPECT_EQ(kHeight, renderer_.width());
EXPECT_EQ(webrtc::kVideoRotation_0, renderer_.rotation());
capturer_->SetRotation(webrtc::kVideoRotation_270);
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(++frame_count, renderer_.num_rendered_frames());
// Swapped width and height
EXPECT_EQ(kWidth, renderer_.height());
EXPECT_EQ(kHeight, renderer_.width());
EXPECT_EQ(webrtc::kVideoRotation_0, renderer_.rotation());
capturer_->SetRotation(webrtc::kVideoRotation_180);
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(++frame_count, renderer_.num_rendered_frames());
// Back to normal width and height
EXPECT_EQ(kWidth, renderer_.width());
EXPECT_EQ(kHeight, renderer_.height());
EXPECT_EQ(webrtc::kVideoRotation_0, renderer_.rotation());
}
TEST_F(VideoCapturerTest, TestRotationAppliedBySinkByDefault) {
int kWidth = 800;
int kHeight = 400;
std::vector<cricket::VideoFormat> formats;
formats.push_back(cricket::VideoFormat(kWidth, kHeight,
cricket::VideoFormat::FpsToInterval(5),
cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(formats);
EXPECT_EQ(cricket::CS_RUNNING,
capturer_->Start(cricket::VideoFormat(
kWidth, kHeight, cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420)));
EXPECT_TRUE(capturer_->IsRunning());
EXPECT_EQ(0, renderer_.num_rendered_frames());
// If the frame's rotation is compensated anywhere in the pipeline, the frame
// won't have its original dimension out from capturer. Since the renderer
// here has the same dimension as the capturer, it will skip that frame as the
// resolution won't match anymore.
int frame_count = 0;
capturer_->SetRotation(webrtc::kVideoRotation_0);
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(++frame_count, renderer_.num_rendered_frames());
EXPECT_EQ(capturer_->GetRotation(), renderer_.rotation());
capturer_->SetRotation(webrtc::kVideoRotation_90);
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(++frame_count, renderer_.num_rendered_frames());
EXPECT_EQ(capturer_->GetRotation(), renderer_.rotation());
capturer_->SetRotation(webrtc::kVideoRotation_180);
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(++frame_count, renderer_.num_rendered_frames());
EXPECT_EQ(capturer_->GetRotation(), renderer_.rotation());
capturer_->SetRotation(webrtc::kVideoRotation_270);
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(++frame_count, renderer_.num_rendered_frames());
EXPECT_EQ(capturer_->GetRotation(), renderer_.rotation());
}
TEST_F(VideoCapturerTest, TestRotationAppliedBySourceWhenDifferentWants) {
int kWidth = 800;
int kHeight = 400;
std::vector<cricket::VideoFormat> formats;
formats.push_back(cricket::VideoFormat(kWidth, kHeight,
cricket::VideoFormat::FpsToInterval(5),
cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(formats);
rtc::VideoSinkWants wants;
// capturer_ should not compensate rotation.
wants.rotation_applied = false;
capturer_->AddOrUpdateSink(&renderer_, wants);
EXPECT_EQ(cricket::CS_RUNNING,
capturer_->Start(cricket::VideoFormat(
kWidth, kHeight, cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420)));
EXPECT_TRUE(capturer_->IsRunning());
EXPECT_EQ(0, renderer_.num_rendered_frames());
int frame_count = 0;
capturer_->SetRotation(webrtc::kVideoRotation_90);
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(++frame_count, renderer_.num_rendered_frames());
EXPECT_EQ(capturer_->GetRotation(), renderer_.rotation());
// Add another sink that wants frames to be rotated.
cricket::FakeVideoRenderer renderer2;
wants.rotation_applied = true;
capturer_->AddOrUpdateSink(&renderer2, wants);
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(++frame_count, renderer_.num_rendered_frames());
EXPECT_EQ(1, renderer2.num_rendered_frames());
EXPECT_EQ(webrtc::kVideoRotation_0, renderer_.rotation());
EXPECT_EQ(webrtc::kVideoRotation_0, renderer2.rotation());
}
// TODO(nisse): This test doesn't quite fit here. It tests two things:
// Aggregation of VideoSinkWants, which is the responsibility of
// VideoBroadcaster, and translation of VideoSinkWants to actual
// resolution, which is the responsibility of the VideoAdapter.
TEST_F(VideoCapturerTest, SinkWantsMaxPixelAndMaxPixelCountStepUp) {
EXPECT_EQ(cricket::CS_RUNNING,
capturer_->Start(cricket::VideoFormat(
1280, 720, cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420)));
EXPECT_TRUE(capturer_->IsRunning());
EXPECT_EQ(0, renderer_.num_rendered_frames());
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(1, renderer_.num_rendered_frames());
EXPECT_EQ(1280, renderer_.width());
EXPECT_EQ(720, renderer_.height());
// Request a lower resolution. The output resolution will have a resolution
// with less than or equal to |wants.max_pixel_count| depending on how the
// capturer can scale the input frame size.
rtc::VideoSinkWants wants;
wants.max_pixel_count = rtc::Optional<int>(1280 * 720 * 3 / 5);
capturer_->AddOrUpdateSink(&renderer_, wants);
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(2, renderer_.num_rendered_frames());
EXPECT_EQ(960, renderer_.width());
EXPECT_EQ(540, renderer_.height());
// Request a lower resolution.
wants.max_pixel_count =
rtc::Optional<int>(renderer_.width() * renderer_.height() * 3 / 5);
capturer_->AddOrUpdateSink(&renderer_, wants);
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(3, renderer_.num_rendered_frames());
EXPECT_EQ(640, renderer_.width());
EXPECT_EQ(360, renderer_.height());
// Adding a new renderer should not affect resolution.
cricket::FakeVideoRenderer renderer2;
capturer_->AddOrUpdateSink(&renderer2, rtc::VideoSinkWants());
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(4, renderer_.num_rendered_frames());
EXPECT_EQ(640, renderer_.width());
EXPECT_EQ(360, renderer_.height());
EXPECT_EQ(1, renderer2.num_rendered_frames());
EXPECT_EQ(640, renderer2.width());
EXPECT_EQ(360, renderer2.height());
// Request higher resolution.
wants.max_pixel_count_step_up = wants.max_pixel_count;
wants.max_pixel_count = rtc::Optional<int>();
capturer_->AddOrUpdateSink(&renderer_, wants);
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(5, renderer_.num_rendered_frames());
EXPECT_EQ(960, renderer_.width());
EXPECT_EQ(540, renderer_.height());
EXPECT_EQ(2, renderer2.num_rendered_frames());
EXPECT_EQ(960, renderer2.width());
EXPECT_EQ(540, renderer2.height());
// Updating with no wants should not affect resolution.
capturer_->AddOrUpdateSink(&renderer2, rtc::VideoSinkWants());
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(6, renderer_.num_rendered_frames());
EXPECT_EQ(960, renderer_.width());
EXPECT_EQ(540, renderer_.height());
EXPECT_EQ(3, renderer2.num_rendered_frames());
EXPECT_EQ(960, renderer2.width());
EXPECT_EQ(540, renderer2.height());
// But resetting the wants should reset the resolution to what the camera is
// opened with.
capturer_->AddOrUpdateSink(&renderer_, rtc::VideoSinkWants());
EXPECT_TRUE(capturer_->CaptureFrame());
EXPECT_EQ(7, renderer_.num_rendered_frames());
EXPECT_EQ(1280, renderer_.width());
EXPECT_EQ(720, renderer_.height());
EXPECT_EQ(4, renderer2.num_rendered_frames());
EXPECT_EQ(1280, renderer2.width());
EXPECT_EQ(720, renderer2.height());
}
TEST_F(VideoCapturerTest, TestFourccMatch) {
cricket::VideoFormat desired(640, 480,
cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_ANY);
cricket::VideoFormat best;
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(640, best.width);
EXPECT_EQ(480, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
desired.fourcc = cricket::FOURCC_MJPG;
EXPECT_FALSE(capturer_->GetBestCaptureFormat(desired, &best));
desired.fourcc = cricket::FOURCC_I420;
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
}
TEST_F(VideoCapturerTest, TestResolutionMatch) {
cricket::VideoFormat desired(1920, 1080,
cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_ANY);
cricket::VideoFormat best;
// Ask for 1920x1080. Get HD 1280x720 which is the highest.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(1280, best.width);
EXPECT_EQ(720, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
desired.width = 360;
desired.height = 250;
// Ask for a little higher than QVGA. Get QVGA.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(320, best.width);
EXPECT_EQ(240, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
desired.width = 480;
desired.height = 270;
// Ask for HVGA. Get VGA.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(640, best.width);
EXPECT_EQ(480, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
desired.width = 320;
desired.height = 240;
// Ask for QVGA. Get QVGA.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(320, best.width);
EXPECT_EQ(240, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
desired.width = 80;
desired.height = 60;
// Ask for lower than QQVGA. Get QQVGA, which is the lowest.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(160, best.width);
EXPECT_EQ(120, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
}
TEST_F(VideoCapturerTest, TestHDResolutionMatch) {
// Add some HD formats typical of a mediocre HD webcam.
std::vector<cricket::VideoFormat> formats;
formats.push_back(cricket::VideoFormat(320, 240,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
formats.push_back(cricket::VideoFormat(960, 544,
cricket::VideoFormat::FpsToInterval(24), cricket::FOURCC_I420));
formats.push_back(cricket::VideoFormat(1280, 720,
cricket::VideoFormat::FpsToInterval(15), cricket::FOURCC_I420));
formats.push_back(cricket::VideoFormat(2592, 1944,
cricket::VideoFormat::FpsToInterval(7), cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(formats);
cricket::VideoFormat desired(960, 720,
cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_ANY);
cricket::VideoFormat best;
// Ask for 960x720 30 fps. Get qHD 24 fps
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(960, best.width);
EXPECT_EQ(544, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(24), best.interval);
desired.width = 960;
desired.height = 544;
desired.interval = cricket::VideoFormat::FpsToInterval(30);
// Ask for qHD 30 fps. Get qHD 24 fps
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(960, best.width);
EXPECT_EQ(544, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(24), best.interval);
desired.width = 360;
desired.height = 250;
desired.interval = cricket::VideoFormat::FpsToInterval(30);
// Ask for a little higher than QVGA. Get QVGA.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(320, best.width);
EXPECT_EQ(240, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
desired.width = 480;
desired.height = 270;
// Ask for HVGA. Get VGA.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(640, best.width);
EXPECT_EQ(480, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
desired.width = 320;
desired.height = 240;
// Ask for QVGA. Get QVGA.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(320, best.width);
EXPECT_EQ(240, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
desired.width = 160;
desired.height = 120;
// Ask for lower than QVGA. Get QVGA, which is the lowest.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(320, best.width);
EXPECT_EQ(240, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
desired.width = 1280;
desired.height = 720;
// Ask for HD. 720p fps is too low. Get VGA which has 30 fps.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(640, best.width);
EXPECT_EQ(480, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
desired.width = 1280;
desired.height = 720;
desired.interval = cricket::VideoFormat::FpsToInterval(15);
// Ask for HD 15 fps. Fps matches. Get HD
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(1280, best.width);
EXPECT_EQ(720, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(15), best.interval);
desired.width = 1920;
desired.height = 1080;
desired.interval = cricket::VideoFormat::FpsToInterval(30);
// Ask for 1080p. Fps of HD formats is too low. Get VGA which can do 30 fps.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(desired, &best));
EXPECT_EQ(640, best.width);
EXPECT_EQ(480, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
}
// Some cameras support 320x240 and 320x640. Verify we choose 320x240.
TEST_F(VideoCapturerTest, TestStrangeFormats) {
std::vector<cricket::VideoFormat> supported_formats;
supported_formats.push_back(cricket::VideoFormat(320, 240,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(320, 640,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(supported_formats);
std::vector<cricket::VideoFormat> required_formats;
required_formats.push_back(cricket::VideoFormat(320, 240,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
required_formats.push_back(cricket::VideoFormat(320, 200,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
required_formats.push_back(cricket::VideoFormat(320, 180,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
cricket::VideoFormat best;
for (size_t i = 0; i < required_formats.size(); ++i) {
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[i], &best));
EXPECT_EQ(320, best.width);
EXPECT_EQ(240, best.height);
}
supported_formats.clear();
supported_formats.push_back(cricket::VideoFormat(320, 640,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(320, 240,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(supported_formats);
for (size_t i = 0; i < required_formats.size(); ++i) {
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[i], &best));
EXPECT_EQ(320, best.width);
EXPECT_EQ(240, best.height);
}
}
// Some cameras only have very low fps. Verify we choose something sensible.
TEST_F(VideoCapturerTest, TestPoorFpsFormats) {
// all formats are low framerate
std::vector<cricket::VideoFormat> supported_formats;
supported_formats.push_back(cricket::VideoFormat(320, 240,
cricket::VideoFormat::FpsToInterval(10), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(7), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(1280, 720,
cricket::VideoFormat::FpsToInterval(2), cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(supported_formats);
std::vector<cricket::VideoFormat> required_formats;
required_formats.push_back(cricket::VideoFormat(320, 240,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
required_formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
cricket::VideoFormat best;
for (size_t i = 0; i < required_formats.size(); ++i) {
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[i], &best));
EXPECT_EQ(required_formats[i].width, best.width);
EXPECT_EQ(required_formats[i].height, best.height);
}
// Increase framerate of 320x240. Expect low fps VGA avoided.
supported_formats.clear();
supported_formats.push_back(cricket::VideoFormat(320, 240,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(7), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(1280, 720,
cricket::VideoFormat::FpsToInterval(2), cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(supported_formats);
for (size_t i = 0; i < required_formats.size(); ++i) {
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[i], &best));
EXPECT_EQ(320, best.width);
EXPECT_EQ(240, best.height);
}
}
// Some cameras support same size with different frame rates. Verify we choose
// the frame rate properly.
TEST_F(VideoCapturerTest, TestSameSizeDifferentFpsFormats) {
std::vector<cricket::VideoFormat> supported_formats;
supported_formats.push_back(cricket::VideoFormat(320, 240,
cricket::VideoFormat::FpsToInterval(10), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(320, 240,
cricket::VideoFormat::FpsToInterval(20), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(320, 240,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(supported_formats);
std::vector<cricket::VideoFormat> required_formats = supported_formats;
cricket::VideoFormat best;
for (size_t i = 0; i < required_formats.size(); ++i) {
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[i], &best));
EXPECT_EQ(320, best.width);
EXPECT_EQ(240, best.height);
EXPECT_EQ(required_formats[i].interval, best.interval);
}
}
// Some cameras support the correct resolution but at a lower fps than
// we'd like. This tests we get the expected resolution and fps.
TEST_F(VideoCapturerTest, TestFpsFormats) {
// We have VGA but low fps. Choose VGA, not HD
std::vector<cricket::VideoFormat> supported_formats;
supported_formats.push_back(cricket::VideoFormat(1280, 720,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(15), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 400,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 360,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(supported_formats);
std::vector<cricket::VideoFormat> required_formats;
required_formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_ANY));
required_formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(20), cricket::FOURCC_ANY));
required_formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(10), cricket::FOURCC_ANY));
cricket::VideoFormat best;
// Expect 30 fps to choose 30 fps format.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[0], &best));
EXPECT_EQ(640, best.width);
EXPECT_EQ(400, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
// Expect 20 fps to choose 30 fps format.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[1], &best));
EXPECT_EQ(640, best.width);
EXPECT_EQ(400, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
// Expect 10 fps to choose 15 fps format and set fps to 15.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[2], &best));
EXPECT_EQ(640, best.width);
EXPECT_EQ(480, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(15), best.interval);
// We have VGA 60 fps and 15 fps. Choose best fps.
supported_formats.clear();
supported_formats.push_back(cricket::VideoFormat(1280, 720,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(60), cricket::FOURCC_MJPG));
supported_formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(15), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 400,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 360,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(supported_formats);
// Expect 30 fps to choose 60 fps format and will set best fps to 60.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[0], &best));
EXPECT_EQ(640, best.width);
EXPECT_EQ(480, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(60), best.interval);
// Expect 20 fps to choose 60 fps format, and will set best fps to 60.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[1], &best));
EXPECT_EQ(640, best.width);
EXPECT_EQ(480, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(60), best.interval);
// Expect 10 fps to choose 15 fps.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[2], &best));
EXPECT_EQ(640, best.width);
EXPECT_EQ(480, best.height);
EXPECT_EQ(cricket::VideoFormat::FpsToInterval(15), best.interval);
}
TEST_F(VideoCapturerTest, TestRequest16x10_9) {
std::vector<cricket::VideoFormat> supported_formats;
// We do not support HD, expect 4x3 for 4x3, 16x10, and 16x9 requests.
supported_formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 400,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 360,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(supported_formats);
std::vector<cricket::VideoFormat> required_formats = supported_formats;
cricket::VideoFormat best;
// Expect 4x3, 16x10, and 16x9 requests are respected.
for (size_t i = 0; i < required_formats.size(); ++i) {
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[i], &best));
EXPECT_EQ(required_formats[i].width, best.width);
EXPECT_EQ(required_formats[i].height, best.height);
}
// We do not support 16x9 HD, expect 4x3 for 4x3, 16x10, and 16x9 requests.
supported_formats.clear();
supported_formats.push_back(cricket::VideoFormat(960, 720,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 400,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 360,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(supported_formats);
// Expect 4x3, 16x10, and 16x9 requests are respected.
for (size_t i = 0; i < required_formats.size(); ++i) {
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[i], &best));
EXPECT_EQ(required_formats[i].width, best.width);
EXPECT_EQ(required_formats[i].height, best.height);
}
// We support 16x9HD, Expect 4x3, 16x10, and 16x9 requests are respected.
supported_formats.clear();
supported_formats.push_back(cricket::VideoFormat(1280, 720,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 480,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 400,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(640, 360,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(supported_formats);
// Expect 4x3 for 4x3 and 16x10 requests.
for (size_t i = 0; i < required_formats.size() - 1; ++i) {
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[i], &best));
EXPECT_EQ(required_formats[i].width, best.width);
EXPECT_EQ(required_formats[i].height, best.height);
}
// Expect 16x9 for 16x9 request.
EXPECT_TRUE(capturer_->GetBestCaptureFormat(required_formats[2], &best));
EXPECT_EQ(640, best.width);
EXPECT_EQ(360, best.height);
}
bool HdFormatInList(const std::vector<cricket::VideoFormat>& formats) {
for (std::vector<cricket::VideoFormat>::const_iterator found =
formats.begin(); found != formats.end(); ++found) {
if (found->height >= kMinHdHeight) {
return true;
}
}
return false;
}
TEST_F(VideoCapturerTest, Whitelist) {
// The definition of HD only applies to the height. Set the HD width to the
// smallest legal number to document this fact in this test.
const int kMinHdWidth = 1;
cricket::VideoFormat hd_format(kMinHdWidth,
kMinHdHeight,
cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420);
cricket::VideoFormat vga_format(640, 480,
cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420);
std::vector<cricket::VideoFormat> formats = *capturer_->GetSupportedFormats();
formats.push_back(hd_format);
// Enable whitelist. Expect HD not in list.
capturer_->set_enable_camera_list(true);
capturer_->ResetSupportedFormats(formats);
EXPECT_TRUE(HdFormatInList(*capturer_->GetSupportedFormats()));
capturer_->ConstrainSupportedFormats(vga_format);
EXPECT_FALSE(HdFormatInList(*capturer_->GetSupportedFormats()));
// Disable whitelist. Expect HD in list.
capturer_->set_enable_camera_list(false);
capturer_->ResetSupportedFormats(formats);
EXPECT_TRUE(HdFormatInList(*capturer_->GetSupportedFormats()));
capturer_->ConstrainSupportedFormats(vga_format);
EXPECT_TRUE(HdFormatInList(*capturer_->GetSupportedFormats()));
}
TEST_F(VideoCapturerTest, BlacklistAllFormats) {
cricket::VideoFormat vga_format(640, 480,
cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420);
std::vector<cricket::VideoFormat> supported_formats;
// Mock a device that only supports HD formats.
supported_formats.push_back(cricket::VideoFormat(1280, 720,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
supported_formats.push_back(cricket::VideoFormat(1920, 1080,
cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
capturer_->ResetSupportedFormats(supported_formats);
EXPECT_EQ(2u, capturer_->GetSupportedFormats()->size());
// Now, enable the list, which would exclude both formats. However, since
// only HD formats are available, we refuse to filter at all, so we don't
// break this camera.
capturer_->set_enable_camera_list(true);
capturer_->ConstrainSupportedFormats(vga_format);
EXPECT_EQ(2u, capturer_->GetSupportedFormats()->size());
// To make sure it's not just the camera list being broken, add in VGA and
// try again. This time, only the VGA format should be there.
supported_formats.push_back(vga_format);
capturer_->ResetSupportedFormats(supported_formats);
ASSERT_EQ(1u, capturer_->GetSupportedFormats()->size());
EXPECT_EQ(vga_format.height, capturer_->GetSupportedFormats()->at(0).height);
}