blob: 522cd5ddea6f3e72a2f0854d46bfce0f5948e1c7 [file] [log] [blame]
/*
* Copyright (c) 2010 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 <limits.h> // For INT_MAX
#include <limits>
#include <memory>
#include <string>
#include <vector>
#include "media/base/fakevideocapturer.h"
#include "media/base/mediachannel.h"
#include "media/base/testutils.h"
#include "media/base/videoadapter.h"
#include "rtc_base/gunit.h"
#include "rtc_base/logging.h"
namespace cricket {
namespace {
const int kDefaultFps = 30;
} // namespace
class VideoAdapterTest : public testing::Test {
public:
virtual void SetUp() {
capturer_.reset(new FakeVideoCapturer);
capture_format_ = capturer_->GetSupportedFormats()->at(0);
capture_format_.interval = VideoFormat::FpsToInterval(kDefaultFps);
listener_.reset(new VideoCapturerListener(&adapter_));
capturer_->AddOrUpdateSink(listener_.get(), rtc::VideoSinkWants());
}
virtual void TearDown() {
// Explicitly disconnect the VideoCapturer before to avoid data races
// (frames delivered to VideoCapturerListener while it's being destructed).
capturer_->RemoveSink(listener_.get());
}
protected:
class VideoCapturerListener
: public rtc::VideoSinkInterface<webrtc::VideoFrame> {
public:
struct Stats {
int captured_frames;
int dropped_frames;
bool last_adapt_was_no_op;
int cropped_width;
int cropped_height;
int out_width;
int out_height;
};
explicit VideoCapturerListener(VideoAdapter* adapter)
: video_adapter_(adapter),
cropped_width_(0),
cropped_height_(0),
out_width_(0),
out_height_(0),
captured_frames_(0),
dropped_frames_(0),
last_adapt_was_no_op_(false) {}
void OnFrame(const webrtc::VideoFrame& frame) {
rtc::CritScope lock(&crit_);
const int in_width = frame.width();
const int in_height = frame.height();
int cropped_width;
int cropped_height;
int out_width;
int out_height;
if (video_adapter_->AdaptFrameResolution(
in_width, in_height,
frame.timestamp_us() * rtc::kNumNanosecsPerMicrosec,
&cropped_width, &cropped_height, &out_width, &out_height)) {
cropped_width_ = cropped_width;
cropped_height_ = cropped_height;
out_width_ = out_width;
out_height_ = out_height;
last_adapt_was_no_op_ =
(in_width == cropped_width && in_height == cropped_height &&
in_width == out_width && in_height == out_height);
} else {
++dropped_frames_;
}
++captured_frames_;
}
Stats GetStats() {
rtc::CritScope lock(&crit_);
Stats stats;
stats.captured_frames = captured_frames_;
stats.dropped_frames = dropped_frames_;
stats.last_adapt_was_no_op = last_adapt_was_no_op_;
stats.cropped_width = cropped_width_;
stats.cropped_height = cropped_height_;
stats.out_width = out_width_;
stats.out_height = out_height_;
return stats;
}
private:
rtc::CriticalSection crit_;
VideoAdapter* video_adapter_;
int cropped_width_;
int cropped_height_;
int out_width_;
int out_height_;
int captured_frames_;
int dropped_frames_;
bool last_adapt_was_no_op_;
};
void VerifyAdaptedResolution(const VideoCapturerListener::Stats& stats,
int cropped_width,
int cropped_height,
int out_width,
int out_height) {
EXPECT_EQ(cropped_width, stats.cropped_width);
EXPECT_EQ(cropped_height, stats.cropped_height);
EXPECT_EQ(out_width, stats.out_width);
EXPECT_EQ(out_height, stats.out_height);
}
std::unique_ptr<FakeVideoCapturer> capturer_;
VideoAdapter adapter_;
int cropped_width_;
int cropped_height_;
int out_width_;
int out_height_;
std::unique_ptr<VideoCapturerListener> listener_;
VideoFormat capture_format_;
};
// Do not adapt the frame rate or the resolution. Expect no frame drop, no
// cropping, and no resolution change.
TEST_F(VideoAdapterTest, AdaptNothing) {
EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
for (int i = 0; i < 10; ++i)
capturer_->CaptureFrame();
// Verify no frame drop and no resolution change.
VideoCapturerListener::Stats stats = listener_->GetStats();
EXPECT_GE(stats.captured_frames, 10);
EXPECT_EQ(0, stats.dropped_frames);
VerifyAdaptedResolution(stats, capture_format_.width, capture_format_.height,
capture_format_.width, capture_format_.height);
EXPECT_TRUE(stats.last_adapt_was_no_op);
}
TEST_F(VideoAdapterTest, AdaptZeroInterval) {
VideoFormat format = capturer_->GetSupportedFormats()->at(0);
format.interval = 0;
adapter_.OnOutputFormatRequest(format);
EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
for (int i = 0; i < 10; ++i)
capturer_->CaptureFrame();
// Verify no crash and that frames aren't dropped.
VideoCapturerListener::Stats stats = listener_->GetStats();
EXPECT_GE(stats.captured_frames, 10);
EXPECT_EQ(0, stats.dropped_frames);
VerifyAdaptedResolution(stats, capture_format_.width, capture_format_.height,
capture_format_.width, capture_format_.height);
}
// Adapt the frame rate to be half of the capture rate at the beginning. Expect
// the number of dropped frames to be half of the number the captured frames.
TEST_F(VideoAdapterTest, AdaptFramerateToHalf) {
VideoFormat request_format = capture_format_;
request_format.interval *= 2;
adapter_.OnOutputFormatRequest(request_format);
EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
// Capture 10 frames and verify that every other frame is dropped. The first
// frame should not be dropped.
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 1);
EXPECT_EQ(0, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 2);
EXPECT_EQ(1, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 3);
EXPECT_EQ(1, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 4);
EXPECT_EQ(2, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 5);
EXPECT_EQ(2, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 6);
EXPECT_EQ(3, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 7);
EXPECT_EQ(3, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 8);
EXPECT_EQ(4, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 9);
EXPECT_EQ(4, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 10);
EXPECT_EQ(5, listener_->GetStats().dropped_frames);
}
// Adapt the frame rate to be two thirds of the capture rate at the beginning.
// Expect the number of dropped frames to be one thirds of the number the
// captured frames.
TEST_F(VideoAdapterTest, AdaptFramerateToTwoThirds) {
VideoFormat request_format = capture_format_;
request_format.interval = request_format.interval * 3 / 2;
adapter_.OnOutputFormatRequest(request_format);
EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
// Capture 10 frames and verify that every third frame is dropped. The first
// frame should not be dropped.
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 1);
EXPECT_EQ(0, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 2);
EXPECT_EQ(0, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 3);
EXPECT_EQ(1, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 4);
EXPECT_EQ(1, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 5);
EXPECT_EQ(1, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 6);
EXPECT_EQ(2, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 7);
EXPECT_EQ(2, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 8);
EXPECT_EQ(2, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 9);
EXPECT_EQ(3, listener_->GetStats().dropped_frames);
capturer_->CaptureFrame();
EXPECT_GE(listener_->GetStats().captured_frames, 10);
EXPECT_EQ(3, listener_->GetStats().dropped_frames);
}
// Request frame rate twice as high as captured frame rate. Expect no frame
// drop.
TEST_F(VideoAdapterTest, AdaptFramerateHighLimit) {
VideoFormat request_format = capture_format_;
request_format.interval /= 2;
adapter_.OnOutputFormatRequest(request_format);
EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
for (int i = 0; i < 10; ++i)
capturer_->CaptureFrame();
// Verify no frame drop.
EXPECT_EQ(0, listener_->GetStats().dropped_frames);
}
// After the first timestamp, add a big offset to the timestamps. Expect that
// the adapter is conservative and resets to the new offset and does not drop
// any frame.
TEST_F(VideoAdapterTest, AdaptFramerateTimestampOffset) {
const int64_t capture_interval = VideoFormat::FpsToInterval(kDefaultFps);
adapter_.OnOutputFormatRequest(
VideoFormat(640, 480, capture_interval, cricket::FOURCC_ANY));
const int64_t first_timestamp = 0;
adapter_.AdaptFrameResolution(640, 480, first_timestamp,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_);
EXPECT_GT(out_width_, 0);
EXPECT_GT(out_height_, 0);
const int64_t big_offset = -987654321LL * 1000;
const int64_t second_timestamp = big_offset;
adapter_.AdaptFrameResolution(640, 480, second_timestamp,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_);
EXPECT_GT(out_width_, 0);
EXPECT_GT(out_height_, 0);
const int64_t third_timestamp = big_offset + capture_interval;
adapter_.AdaptFrameResolution(640, 480, third_timestamp,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_);
EXPECT_GT(out_width_, 0);
EXPECT_GT(out_height_, 0);
}
// Request 30 fps and send 30 fps with jitter. Expect that no frame is dropped.
TEST_F(VideoAdapterTest, AdaptFramerateTimestampJitter) {
const int64_t capture_interval = VideoFormat::FpsToInterval(kDefaultFps);
adapter_.OnOutputFormatRequest(
VideoFormat(640, 480, capture_interval, cricket::FOURCC_ANY));
adapter_.AdaptFrameResolution(640, 480, capture_interval * 0 / 10,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_);
EXPECT_GT(out_width_, 0);
EXPECT_GT(out_height_, 0);
adapter_.AdaptFrameResolution(640, 480, capture_interval * 10 / 10 - 1,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_);
EXPECT_GT(out_width_, 0);
EXPECT_GT(out_height_, 0);
adapter_.AdaptFrameResolution(640, 480, capture_interval * 25 / 10,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_);
EXPECT_GT(out_width_, 0);
EXPECT_GT(out_height_, 0);
adapter_.AdaptFrameResolution(640, 480, capture_interval * 30 / 10,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_);
EXPECT_GT(out_width_, 0);
EXPECT_GT(out_height_, 0);
adapter_.AdaptFrameResolution(640, 480, capture_interval * 35 / 10,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_);
EXPECT_GT(out_width_, 0);
EXPECT_GT(out_height_, 0);
adapter_.AdaptFrameResolution(640, 480, capture_interval * 50 / 10,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_);
EXPECT_GT(out_width_, 0);
EXPECT_GT(out_height_, 0);
}
// Adapt the frame rate to be half of the capture rate after capturing no less
// than 10 frames. Expect no frame dropped before adaptation and frame dropped
// after adaptation.
TEST_F(VideoAdapterTest, AdaptFramerateOntheFly) {
VideoFormat request_format = capture_format_;
adapter_.OnOutputFormatRequest(request_format);
EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
for (int i = 0; i < 10; ++i)
capturer_->CaptureFrame();
// Verify no frame drop before adaptation.
EXPECT_EQ(0, listener_->GetStats().dropped_frames);
// Adapat the frame rate.
request_format.interval *= 2;
adapter_.OnOutputFormatRequest(request_format);
for (int i = 0; i < 20; ++i)
capturer_->CaptureFrame();
// Verify frame drop after adaptation.
EXPECT_GT(listener_->GetStats().dropped_frames, 0);
}
// Do not adapt the frame rate or the resolution. Expect no frame drop, no
// cropping, and no resolution change.
TEST_F(VideoAdapterTest, OnFramerateRequestMax) {
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(),
std::numeric_limits<int>::max(),
std::numeric_limits<int>::max());
EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
for (int i = 0; i < 10; ++i)
capturer_->CaptureFrame();
// Verify no frame drop and no resolution change.
VideoCapturerListener::Stats stats = listener_->GetStats();
EXPECT_GE(stats.captured_frames, 10);
EXPECT_EQ(0, stats.dropped_frames);
VerifyAdaptedResolution(stats, capture_format_.width, capture_format_.height,
capture_format_.width, capture_format_.height);
EXPECT_TRUE(stats.last_adapt_was_no_op);
}
TEST_F(VideoAdapterTest, OnFramerateRequestZero) {
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(),
std::numeric_limits<int>::max(), 0);
EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
for (int i = 0; i < 10; ++i)
capturer_->CaptureFrame();
// Verify no crash and that frames aren't dropped.
VideoCapturerListener::Stats stats = listener_->GetStats();
EXPECT_GE(stats.captured_frames, 10);
EXPECT_EQ(10, stats.dropped_frames);
}
// Adapt the frame rate to be half of the capture rate at the beginning. Expect
// the number of dropped frames to be half of the number the captured frames.
TEST_F(VideoAdapterTest, OnFramerateRequestHalf) {
adapter_.OnResolutionFramerateRequest(
rtc::Optional<int>(), std::numeric_limits<int>::max(), kDefaultFps / 2);
EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
for (int i = 0; i < 10; ++i)
capturer_->CaptureFrame();
// Verify no crash and that frames aren't dropped.
VideoCapturerListener::Stats stats = listener_->GetStats();
EXPECT_GE(stats.captured_frames, 10);
EXPECT_EQ(5, stats.dropped_frames);
VerifyAdaptedResolution(stats, capture_format_.width, capture_format_.height,
capture_format_.width, capture_format_.height);
}
// Set a very high output pixel resolution. Expect no cropping or resolution
// change.
TEST_F(VideoAdapterTest, AdaptFrameResolutionHighLimit) {
VideoFormat output_format = capture_format_;
output_format.width *= 10;
output_format.height *= 10;
adapter_.OnOutputFormatRequest(output_format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(
capture_format_.width, capture_format_.height, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(capture_format_.width, cropped_width_);
EXPECT_EQ(capture_format_.height, cropped_height_);
EXPECT_EQ(capture_format_.width, out_width_);
EXPECT_EQ(capture_format_.height, out_height_);
}
// Adapt the frame resolution to be the same as capture resolution. Expect no
// cropping or resolution change.
TEST_F(VideoAdapterTest, AdaptFrameResolutionIdentical) {
adapter_.OnOutputFormatRequest(capture_format_);
EXPECT_TRUE(adapter_.AdaptFrameResolution(
capture_format_.width, capture_format_.height, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(capture_format_.width, cropped_width_);
EXPECT_EQ(capture_format_.height, cropped_height_);
EXPECT_EQ(capture_format_.width, out_width_);
EXPECT_EQ(capture_format_.height, out_height_);
}
// Adapt the frame resolution to be a quarter of the capture resolution. Expect
// no cropping, but a resolution change.
TEST_F(VideoAdapterTest, AdaptFrameResolutionQuarter) {
VideoFormat request_format = capture_format_;
request_format.width /= 2;
request_format.height /= 2;
adapter_.OnOutputFormatRequest(request_format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(
capture_format_.width, capture_format_.height, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(capture_format_.width, cropped_width_);
EXPECT_EQ(capture_format_.height, cropped_height_);
EXPECT_EQ(request_format.width, out_width_);
EXPECT_EQ(request_format.height, out_height_);
}
// Adapt the pixel resolution to 0. Expect frame drop.
TEST_F(VideoAdapterTest, AdaptFrameResolutionDrop) {
VideoFormat output_format = capture_format_;
output_format.width = 0;
output_format.height = 0;
adapter_.OnOutputFormatRequest(output_format);
EXPECT_FALSE(adapter_.AdaptFrameResolution(
capture_format_.width, capture_format_.height, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
}
// Adapt the frame resolution to be a quarter of the capture resolution at the
// beginning. Expect no cropping but a resolution change.
TEST_F(VideoAdapterTest, AdaptResolution) {
VideoFormat request_format = capture_format_;
request_format.width /= 2;
request_format.height /= 2;
adapter_.OnOutputFormatRequest(request_format);
EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
for (int i = 0; i < 10; ++i)
capturer_->CaptureFrame();
// Verify no frame drop, no cropping, and resolution change.
VideoCapturerListener::Stats stats = listener_->GetStats();
EXPECT_EQ(0, stats.dropped_frames);
VerifyAdaptedResolution(stats, capture_format_.width, capture_format_.height,
request_format.width, request_format.height);
}
// Adapt the frame resolution to be a quarter of the capture resolution after
// capturing no less than 10 frames. Expect no resolution change before
// adaptation and resolution change after adaptation.
TEST_F(VideoAdapterTest, AdaptResolutionOnTheFly) {
VideoFormat request_format = capture_format_;
adapter_.OnOutputFormatRequest(request_format);
EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
for (int i = 0; i < 10; ++i)
capturer_->CaptureFrame();
// Verify no resolution change before adaptation.
VerifyAdaptedResolution(listener_->GetStats(),
capture_format_.width, capture_format_.height,
request_format.width, request_format.height);
// Adapt the frame resolution.
request_format.width /= 2;
request_format.height /= 2;
adapter_.OnOutputFormatRequest(request_format);
for (int i = 0; i < 10; ++i)
capturer_->CaptureFrame();
// Verify resolution change after adaptation.
VerifyAdaptedResolution(listener_->GetStats(),
capture_format_.width, capture_format_.height,
request_format.width, request_format.height);
}
// Drop all frames.
TEST_F(VideoAdapterTest, DropAllFrames) {
VideoFormat format; // with resolution 0x0.
adapter_.OnOutputFormatRequest(format);
EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
for (int i = 0; i < 10; ++i)
capturer_->CaptureFrame();
// Verify all frames are dropped.
VideoCapturerListener::Stats stats = listener_->GetStats();
EXPECT_GE(stats.captured_frames, 10);
EXPECT_EQ(stats.captured_frames, stats.dropped_frames);
}
TEST_F(VideoAdapterTest, TestOnOutputFormatRequest) {
VideoFormat format(640, 400, 0, 0);
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(400, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(400, out_height_);
// Format request 640x400.
format.height = 400;
adapter_.OnOutputFormatRequest(format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(400, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(400, out_height_);
// Request 1280x720, higher than input, but aspect 16:9. Expect cropping but
// no scaling.
format.width = 1280;
format.height = 720;
adapter_.OnOutputFormatRequest(format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(360, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
// Request 0x0.
format.width = 0;
format.height = 0;
adapter_.OnOutputFormatRequest(format);
EXPECT_FALSE(adapter_.AdaptFrameResolution(640, 400, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
// Request 320x200. Expect scaling, but no cropping.
format.width = 320;
format.height = 200;
adapter_.OnOutputFormatRequest(format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(400, cropped_height_);
EXPECT_EQ(320, out_width_);
EXPECT_EQ(200, out_height_);
// Request resolution close to 2/3 scale. Expect adapt down. Scaling to 2/3
// is not optimized and not allowed, therefore 1/2 scaling will be used
// instead.
format.width = 424;
format.height = 265;
adapter_.OnOutputFormatRequest(format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(400, cropped_height_);
EXPECT_EQ(320, out_width_);
EXPECT_EQ(200, out_height_);
// Request resolution of 3 / 8. Expect adapt down.
format.width = 640 * 3 / 8;
format.height = 400 * 3 / 8;
adapter_.OnOutputFormatRequest(format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(400, cropped_height_);
EXPECT_EQ(640 * 3 / 8, out_width_);
EXPECT_EQ(400 * 3 / 8, out_height_);
// Switch back up. Expect adapt.
format.width = 320;
format.height = 200;
adapter_.OnOutputFormatRequest(format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(400, cropped_height_);
EXPECT_EQ(320, out_width_);
EXPECT_EQ(200, out_height_);
// Format request 480x300.
format.width = 480;
format.height = 300;
adapter_.OnOutputFormatRequest(format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 400, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(400, cropped_height_);
EXPECT_EQ(480, out_width_);
EXPECT_EQ(300, out_height_);
}
TEST_F(VideoAdapterTest, TestViewRequestPlusCameraSwitch) {
// Start at HD.
VideoFormat format(1280, 720, 0, 0);
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(1280, out_width_);
EXPECT_EQ(720, out_height_);
// Format request for VGA.
format.width = 640;
format.height = 360;
adapter_.OnOutputFormatRequest(format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
// Now, the camera reopens at VGA.
// Both the frame and the output format should be 640x360.
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 360, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(360, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
// And another view request comes in for 640x360, which should have no
// real impact.
adapter_.OnOutputFormatRequest(format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 360, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(360, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
}
TEST_F(VideoAdapterTest, TestVGAWidth) {
// Reqeuested Output format is 640x360.
VideoFormat format(640, 360, 0, FOURCC_I420);
adapter_.OnOutputFormatRequest(format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
// Expect cropping.
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(360, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
// But if frames come in at 640x360, we shouldn't adapt them down.
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 360, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(360, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(360, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
}
TEST_F(VideoAdapterTest, TestOnResolutionRequestInSmallSteps) {
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(1280, out_width_);
EXPECT_EQ(720, out_height_);
// Adapt down one step.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(), 1280 * 720 - 1,
std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(960, out_width_);
EXPECT_EQ(540, out_height_);
// Adapt down one step more.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(), 960 * 540 - 1,
std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
// Adapt down one step more.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(), 640 * 360 - 1,
std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(480, out_width_);
EXPECT_EQ(270, out_height_);
// Adapt up one step.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(640 * 360),
960 * 540,
std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
// Adapt up one step more.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(960 * 540),
1280 * 720,
std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(960, out_width_);
EXPECT_EQ(540, out_height_);
// Adapt up one step more.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(1280 * 720),
1920 * 1080,
std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(1280, out_width_);
EXPECT_EQ(720, out_height_);
}
TEST_F(VideoAdapterTest, TestOnResolutionRequestMaxZero) {
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(1280, out_width_);
EXPECT_EQ(720, out_height_);
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(), 0,
std::numeric_limits<int>::max());
EXPECT_FALSE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
}
TEST_F(VideoAdapterTest, TestOnResolutionRequestInLargeSteps) {
// Large step down.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(), 640 * 360 - 1,
std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(480, out_width_);
EXPECT_EQ(270, out_height_);
// Large step up.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(1280 * 720),
1920 * 1080,
std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(1280, out_width_);
EXPECT_EQ(720, out_height_);
}
TEST_F(VideoAdapterTest, TestOnOutputFormatRequestCapsMaxResolution) {
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(), 640 * 360 - 1,
std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(480, out_width_);
EXPECT_EQ(270, out_height_);
VideoFormat new_format(640, 360, 0, FOURCC_I420);
adapter_.OnOutputFormatRequest(new_format);
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(480, out_width_);
EXPECT_EQ(270, out_height_);
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(), 960 * 720,
std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
}
TEST_F(VideoAdapterTest, TestOnResolutionRequestReset) {
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(1280, out_width_);
EXPECT_EQ(720, out_height_);
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(), 640 * 360 - 1,
std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(480, out_width_);
EXPECT_EQ(270, out_height_);
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(),
std::numeric_limits<int>::max(),
std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(1280, 720, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(1280, cropped_width_);
EXPECT_EQ(720, cropped_height_);
EXPECT_EQ(1280, out_width_);
EXPECT_EQ(720, out_height_);
}
TEST_F(VideoAdapterTest, TestCroppingWithResolutionRequest) {
// Ask for 640x360 (16:9 aspect).
adapter_.OnOutputFormatRequest(VideoFormat(640, 360, 0, FOURCC_I420));
// Send 640x480 (4:3 aspect).
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
// Expect cropping to 16:9 format and no scaling.
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(360, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
// Adapt down one step.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(), 640 * 360 - 1,
std::numeric_limits<int>::max());
// Expect cropping to 16:9 format and 3/4 scaling.
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(360, cropped_height_);
EXPECT_EQ(480, out_width_);
EXPECT_EQ(270, out_height_);
// Adapt down one step more.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(), 480 * 270 - 1,
std::numeric_limits<int>::max());
// Expect cropping to 16:9 format and 1/2 scaling.
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(360, cropped_height_);
EXPECT_EQ(320, out_width_);
EXPECT_EQ(180, out_height_);
// Adapt up one step.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(480 * 270),
640 * 360,
std::numeric_limits<int>::max());
// Expect cropping to 16:9 format and 3/4 scaling.
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(360, cropped_height_);
EXPECT_EQ(480, out_width_);
EXPECT_EQ(270, out_height_);
// Adapt up one step more.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(640 * 360),
960 * 540,
std::numeric_limits<int>::max());
// Expect cropping to 16:9 format and no scaling.
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(360, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
// Try to adapt up one step more.
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(960 * 540),
1280 * 720,
std::numeric_limits<int>::max());
// Expect cropping to 16:9 format and no scaling.
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(360, cropped_height_);
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
}
TEST_F(VideoAdapterTest, TestCroppingOddResolution) {
// Ask for 640x360 (16:9 aspect), with 3/16 scaling.
adapter_.OnOutputFormatRequest(
VideoFormat(640, 360, 0, FOURCC_I420));
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(),
640 * 360 * 3 / 16 * 3 / 16,
std::numeric_limits<int>::max());
// Send 640x480 (4:3 aspect).
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 480, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
// Instead of getting the exact aspect ratio with cropped resolution 640x360,
// the resolution should be adjusted to get a perfect scale factor instead.
EXPECT_EQ(640, cropped_width_);
EXPECT_EQ(368, cropped_height_);
EXPECT_EQ(120, out_width_);
EXPECT_EQ(69, out_height_);
}
TEST_F(VideoAdapterTest, TestAdaptToVerySmallResolution) {
// Ask for 1920x1080 (16:9 aspect), with 1/16 scaling.
const int w = 1920;
const int h = 1080;
adapter_.OnOutputFormatRequest(VideoFormat(w, h, 0, FOURCC_I420));
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(),
w * h * 1 / 16 * 1 / 16,
std::numeric_limits<int>::max());
// Send 1920x1080 (16:9 aspect).
EXPECT_TRUE(adapter_.AdaptFrameResolution(
w, h, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_));
// Instead of getting the exact aspect ratio with cropped resolution 1920x1080
// the resolution should be adjusted to get a perfect scale factor instead.
EXPECT_EQ(1920, cropped_width_);
EXPECT_EQ(1072, cropped_height_);
EXPECT_EQ(120, out_width_);
EXPECT_EQ(67, out_height_);
// Adapt back up one step to 3/32.
adapter_.OnResolutionFramerateRequest(
rtc::Optional<int>(w * h * 3 / 32 * 3 / 32), w * h * 1 / 8 * 1 / 8,
std::numeric_limits<int>::max());
// Send 1920x1080 (16:9 aspect).
EXPECT_TRUE(adapter_.AdaptFrameResolution(
w, h, 0, &cropped_width_, &cropped_height_, &out_width_, &out_height_));
EXPECT_EQ(180, out_width_);
EXPECT_EQ(99, out_height_);
}
TEST_F(VideoAdapterTest, AdaptFrameResolutionDropWithResolutionRequest) {
VideoFormat output_format = capture_format_;
output_format.width = 0;
output_format.height = 0;
adapter_.OnOutputFormatRequest(output_format);
EXPECT_FALSE(adapter_.AdaptFrameResolution(
capture_format_.width, capture_format_.height, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(960 * 540),
std::numeric_limits<int>::max(),
std::numeric_limits<int>::max());
// Still expect all frames to be dropped
EXPECT_FALSE(adapter_.AdaptFrameResolution(
capture_format_.width, capture_format_.height, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
adapter_.OnResolutionFramerateRequest(rtc::Optional<int>(), 640 * 480 - 1,
std::numeric_limits<int>::max());
// Still expect all frames to be dropped
EXPECT_FALSE(adapter_.AdaptFrameResolution(
capture_format_.width, capture_format_.height, 0,
&cropped_width_, &cropped_height_,
&out_width_, &out_height_));
}
// Test that we will adapt to max given a target pixel count close to max.
TEST_F(VideoAdapterTest, TestAdaptToMax) {
adapter_.OnOutputFormatRequest(VideoFormat(640, 360, 0, FOURCC_I420));
adapter_.OnResolutionFramerateRequest(
rtc::Optional<int>(640 * 360 - 1) /* target */,
std::numeric_limits<int>::max(), std::numeric_limits<int>::max());
EXPECT_TRUE(adapter_.AdaptFrameResolution(640, 360, 0, &cropped_width_,
&cropped_height_, &out_width_,
&out_height_));
EXPECT_EQ(640, out_width_);
EXPECT_EQ(360, out_height_);
}
} // namespace cricket