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/*
* Copyright (c) 2015 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 <optional>
#include <string>
#include <vector>
#include "absl/flags/flag.h"
#include "absl/flags/parse.h"
#include "api/test/simulated_network.h"
#include "api/test/video_quality_test_fixture.h"
#include "api/transport/bitrate_settings.h"
#include "api/units/data_rate.h"
#include "api/video_codecs/video_codec.h"
#include "rtc_base/checks.h"
#include "rtc_base/logging.h"
#include "rtc_base/string_encode.h"
#include "system_wrappers/include/field_trial.h"
#include "test/field_trial.h"
#include "test/gtest.h"
#include "test/run_test.h"
#include "test/test_flags.h"
#include "video/video_quality_test.h"
using ::webrtc::BitrateConstraints;
using ::webrtc::BuiltInNetworkBehaviorConfig;
using ::webrtc::InterLayerPredMode;
using ::webrtc::SdpVideoFormat;
using ::webrtc::VideoQualityTest;
// Flags common with video loopback, with different default values.
ABSL_FLAG(int, width, 1850, "Video width (crops source).");
size_t Width() {
return static_cast<size_t>(absl::GetFlag(FLAGS_width));
}
ABSL_FLAG(int, height, 1110, "Video height (crops source).");
size_t Height() {
return static_cast<size_t>(absl::GetFlag(FLAGS_height));
}
ABSL_FLAG(int, fps, 5, "Frames per second.");
int Fps() {
return absl::GetFlag(FLAGS_fps);
}
ABSL_FLAG(int, min_bitrate, 50, "Call and stream min bitrate in kbps.");
int MinBitrateKbps() {
return absl::GetFlag(FLAGS_min_bitrate);
}
ABSL_FLAG(int, start_bitrate, 300, "Call start bitrate in kbps.");
int StartBitrateKbps() {
return absl::GetFlag(FLAGS_start_bitrate);
}
ABSL_FLAG(int, target_bitrate, 200, "Stream target bitrate in kbps.");
int TargetBitrateKbps() {
return absl::GetFlag(FLAGS_target_bitrate);
}
ABSL_FLAG(int, max_bitrate, 1000, "Call and stream max bitrate in kbps.");
int MaxBitrateKbps() {
return absl::GetFlag(FLAGS_max_bitrate);
}
ABSL_FLAG(int, num_temporal_layers, 2, "Number of temporal layers to use.");
int NumTemporalLayers() {
return absl::GetFlag(FLAGS_num_temporal_layers);
}
// Flags common with video loopback, with equal default values.
ABSL_FLAG(std::string, codec, "VP8", "Video codec to use.");
std::string Codec() {
return absl::GetFlag(FLAGS_codec);
}
ABSL_FLAG(std::string,
rtc_event_log_name,
"",
"Filename for rtc event log. Two files "
"with \"_send\" and \"_recv\" suffixes will be created.");
std::string RtcEventLogName() {
return absl::GetFlag(FLAGS_rtc_event_log_name);
}
ABSL_FLAG(std::string,
rtp_dump_name,
"",
"Filename for dumped received RTP stream.");
std::string RtpDumpName() {
return absl::GetFlag(FLAGS_rtp_dump_name);
}
ABSL_FLAG(int,
selected_tl,
-1,
"Temporal layer to show or analyze. -1 to disable filtering.");
int SelectedTL() {
return absl::GetFlag(FLAGS_selected_tl);
}
ABSL_FLAG(
int,
duration,
0,
"Duration of the test in seconds. If 0, rendered will be shown instead.");
int DurationSecs() {
return absl::GetFlag(FLAGS_duration);
}
ABSL_FLAG(std::string, output_filename, "", "Target graph data filename.");
std::string OutputFilename() {
return absl::GetFlag(FLAGS_output_filename);
}
ABSL_FLAG(std::string,
graph_title,
"",
"If empty, title will be generated automatically.");
std::string GraphTitle() {
return absl::GetFlag(FLAGS_graph_title);
}
ABSL_FLAG(int, loss_percent, 0, "Percentage of packets randomly lost.");
int LossPercent() {
return absl::GetFlag(FLAGS_loss_percent);
}
ABSL_FLAG(int,
link_capacity,
0,
"Capacity (kbps) of the fake link. 0 means infinite.");
webrtc::DataRate LinkCapacity() {
int link_capacity_kbps = absl::GetFlag(FLAGS_link_capacity);
return link_capacity_kbps == 0
? webrtc::DataRate::Infinity()
: webrtc::DataRate::KilobitsPerSec(link_capacity_kbps);
}
ABSL_FLAG(int, queue_size, 0, "Size of the bottleneck link queue in packets.");
int QueueSize() {
return absl::GetFlag(FLAGS_queue_size);
}
ABSL_FLAG(int,
avg_propagation_delay_ms,
0,
"Average link propagation delay in ms.");
int AvgPropagationDelayMs() {
return absl::GetFlag(FLAGS_avg_propagation_delay_ms);
}
ABSL_FLAG(int,
std_propagation_delay_ms,
0,
"Link propagation delay standard deviation in ms.");
int StdPropagationDelayMs() {
return absl::GetFlag(FLAGS_std_propagation_delay_ms);
}
ABSL_FLAG(int, num_streams, 0, "Number of streams to show or analyze.");
int NumStreams() {
return absl::GetFlag(FLAGS_num_streams);
}
ABSL_FLAG(int,
selected_stream,
0,
"ID of the stream to show or analyze. "
"Set to the number of streams to show them all.");
int SelectedStream() {
return absl::GetFlag(FLAGS_selected_stream);
}
ABSL_FLAG(int, num_spatial_layers, 1, "Number of spatial layers to use.");
int NumSpatialLayers() {
return absl::GetFlag(FLAGS_num_spatial_layers);
}
ABSL_FLAG(int,
inter_layer_pred,
0,
"Inter-layer prediction mode. "
"0 - enabled, 1 - disabled, 2 - enabled only for key pictures.");
InterLayerPredMode InterLayerPred() {
if (absl::GetFlag(FLAGS_inter_layer_pred) == 0) {
return webrtc::InterLayerPredMode::kOn;
} else if (absl::GetFlag(FLAGS_inter_layer_pred) == 1) {
return webrtc::InterLayerPredMode::kOff;
} else {
RTC_DCHECK_EQ(absl::GetFlag(FLAGS_inter_layer_pred), 2);
return webrtc::InterLayerPredMode::kOnKeyPic;
}
}
ABSL_FLAG(int,
selected_sl,
-1,
"Spatial layer to show or analyze. -1 to disable filtering.");
int SelectedSL() {
return absl::GetFlag(FLAGS_selected_sl);
}
ABSL_FLAG(std::string,
stream0,
"",
"Comma separated values describing VideoStream for stream #0.");
std::string Stream0() {
return absl::GetFlag(FLAGS_stream0);
}
ABSL_FLAG(std::string,
stream1,
"",
"Comma separated values describing VideoStream for stream #1.");
std::string Stream1() {
return absl::GetFlag(FLAGS_stream1);
}
ABSL_FLAG(std::string,
sl0,
"",
"Comma separated values describing SpatialLayer for layer #0.");
std::string SL0() {
return absl::GetFlag(FLAGS_sl0);
}
ABSL_FLAG(std::string,
sl1,
"",
"Comma separated values describing SpatialLayer for layer #1.");
std::string SL1() {
return absl::GetFlag(FLAGS_sl1);
}
ABSL_FLAG(std::string,
encoded_frame_path,
"",
"The base path for encoded frame logs. Created files will have "
"the form <encoded_frame_path>.<n>.(recv|send.<m>).ivf");
std::string EncodedFramePath() {
return absl::GetFlag(FLAGS_encoded_frame_path);
}
ABSL_FLAG(bool, logs, false, "print logs to stderr");
ABSL_FLAG(bool, send_side_bwe, true, "Use send-side bandwidth estimation");
ABSL_FLAG(bool, generic_descriptor, false, "Use the generic frame descriptor.");
ABSL_FLAG(bool, allow_reordering, false, "Allow packet reordering to occur");
ABSL_FLAG(std::string,
clip,
"",
"Name of the clip to show. If empty, use frame generator.");
std::string Clip() {
return absl::GetFlag(FLAGS_clip);
}
// Screenshare-specific flags.
ABSL_FLAG(int,
min_transmit_bitrate,
400,
"Min transmit bitrate incl. padding.");
int MinTransmitBitrateKbps() {
return absl::GetFlag(FLAGS_min_transmit_bitrate);
}
ABSL_FLAG(bool,
generate_slides,
false,
"Whether to use randomly generated slides or read them from files.");
bool GenerateSlides() {
return absl::GetFlag(FLAGS_generate_slides);
}
ABSL_FLAG(int,
slide_change_interval,
10,
"Interval (in seconds) between simulated slide changes.");
int SlideChangeInterval() {
return absl::GetFlag(FLAGS_slide_change_interval);
}
ABSL_FLAG(
int,
scroll_duration,
0,
"Duration (in seconds) during which a slide will be scrolled into place.");
int ScrollDuration() {
return absl::GetFlag(FLAGS_scroll_duration);
}
ABSL_FLAG(std::string,
slides,
"",
"Comma-separated list of *.yuv files to display as slides.");
std::vector<std::string> Slides() {
std::vector<std::string> slides;
std::string slides_list = absl::GetFlag(FLAGS_slides);
rtc::tokenize(slides_list, ',', &slides);
return slides;
}
void Loopback() {
BuiltInNetworkBehaviorConfig pipe_config;
pipe_config.loss_percent = LossPercent();
pipe_config.link_capacity = LinkCapacity();
pipe_config.queue_length_packets = QueueSize();
pipe_config.queue_delay_ms = AvgPropagationDelayMs();
pipe_config.delay_standard_deviation_ms = StdPropagationDelayMs();
pipe_config.allow_reordering = absl::GetFlag(FLAGS_allow_reordering);
BitrateConstraints call_bitrate_config;
call_bitrate_config.min_bitrate_bps = MinBitrateKbps() * 1000;
call_bitrate_config.start_bitrate_bps = StartBitrateKbps() * 1000;
call_bitrate_config.max_bitrate_bps = -1; // Don't cap bandwidth estimate.
VideoQualityTest::Params params;
params.call.send_side_bwe = absl::GetFlag(FLAGS_send_side_bwe);
params.call.generic_descriptor = absl::GetFlag(FLAGS_generic_descriptor);
params.call.call_bitrate_config = call_bitrate_config;
params.video[0].enabled = true;
params.video[0].width = Width();
params.video[0].height = Height();
params.video[0].fps = Fps();
params.video[0].min_bitrate_bps = MinBitrateKbps() * 1000;
params.video[0].target_bitrate_bps = TargetBitrateKbps() * 1000;
params.video[0].max_bitrate_bps = MaxBitrateKbps() * 1000;
params.video[0].codec = Codec();
params.video[0].num_temporal_layers = NumTemporalLayers();
params.video[0].selected_tl = SelectedTL();
params.video[0].min_transmit_bps = MinTransmitBitrateKbps() * 1000;
params.video[0].clip_path = Clip();
params.screenshare[0].enabled = true;
params.screenshare[0].generate_slides = GenerateSlides();
params.screenshare[0].slide_change_interval = SlideChangeInterval();
params.screenshare[0].scroll_duration = ScrollDuration();
params.screenshare[0].slides = Slides();
params.analyzer.test_label = "screenshare";
params.analyzer.test_durations_secs = DurationSecs();
params.config = pipe_config;
params.logging.rtc_event_log_name = RtcEventLogName();
params.logging.rtp_dump_name = RtpDumpName();
params.logging.encoded_frame_base_path = EncodedFramePath();
if (NumStreams() > 1 && Stream0().empty() && Stream1().empty()) {
params.ss[0].infer_streams = true;
}
std::vector<std::string> stream_descriptors;
stream_descriptors.push_back(Stream0());
stream_descriptors.push_back(Stream1());
std::vector<std::string> SL_descriptors;
SL_descriptors.push_back(SL0());
SL_descriptors.push_back(SL1());
VideoQualityTest fixture(nullptr);
fixture.FillScalabilitySettings(
&params, 0, stream_descriptors, NumStreams(), SelectedStream(),
NumSpatialLayers(), SelectedSL(), InterLayerPred(), SL_descriptors);
if (DurationSecs()) {
fixture.RunWithAnalyzer(params);
} else {
fixture.RunWithRenderers(params);
}
}
int main(int argc, char* argv[]) {
::testing::InitGoogleTest(&argc, argv);
absl::ParseCommandLine(argc, argv);
rtc::LogMessage::SetLogToStderr(absl::GetFlag(FLAGS_logs));
// InitFieldTrialsFromString stores the char*, so the char array must outlive
// the application.
const std::string field_trials = absl::GetFlag(FLAGS_force_fieldtrials);
webrtc::field_trial::InitFieldTrialsFromString(field_trials.c_str());
webrtc::test::RunTest(Loopback);
return 0;
}