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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 <string>
#include <vector>
#include "absl/flags/flag.h"
#include "absl/flags/parse.h"
#include "absl/types/optional.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"
// Flags for video.
ABSL_FLAG(int, vwidth, 640, "Video width.");
ABSL_FLAG(int, vheight, 480, "Video height.");
ABSL_FLAG(int, vfps, 30, "Video frames per second.");
ABSL_FLAG(int,
capture_device_index,
0,
"Capture device to select for video stream");
ABSL_FLAG(int, vtarget_bitrate, 400, "Video stream target bitrate in kbps.");
ABSL_FLAG(int, vmin_bitrate, 100, "Video stream min bitrate in kbps.");
ABSL_FLAG(int, vmax_bitrate, 2000, "Video stream max bitrate in kbps.");
ABSL_FLAG(bool,
suspend_below_min_bitrate,
false,
"Suspends video below the configured min bitrate.");
ABSL_FLAG(int,
vnum_temporal_layers,
1,
"Number of temporal layers for video. Set to 1-4 to override.");
ABSL_FLAG(int, vnum_streams, 0, "Number of video streams to show or analyze.");
ABSL_FLAG(int,
vnum_spatial_layers,
1,
"Number of video spatial layers to use.");
ABSL_FLAG(int,
vinter_layer_pred,
2,
"Video inter-layer prediction mode. "
"0 - enabled, 1 - disabled, 2 - enabled only for key pictures.");
ABSL_FLAG(std::string,
vstream0,
"",
"Comma separated values describing VideoStream for video stream #0.");
ABSL_FLAG(std::string,
vstream1,
"",
"Comma separated values describing VideoStream for video stream #1.");
ABSL_FLAG(std::string,
vsl0,
"",
"Comma separated values describing SpatialLayer for video layer #0.");
ABSL_FLAG(std::string,
vsl1,
"",
"Comma separated values describing SpatialLayer for video layer #1.");
ABSL_FLAG(int,
vselected_tl,
-1,
"Temporal layer to show or analyze for screenshare. -1 to disable "
"filtering.");
ABSL_FLAG(int,
vselected_stream,
0,
"ID of the stream to show or analyze for screenshare."
"Set to the number of streams to show them all.");
ABSL_FLAG(int,
vselected_sl,
-1,
"Spatial layer to show or analyze for screenshare. -1 to disable "
"filtering.");
// Flags for screenshare.
ABSL_FLAG(int,
min_transmit_bitrate,
400,
"Min transmit bitrate incl. padding for screenshare.");
ABSL_FLAG(int, swidth, 1850, "Screenshare width (crops source).");
ABSL_FLAG(int, sheight, 1110, "Screenshare height (crops source).");
ABSL_FLAG(int, sfps, 5, "Frames per second for screenshare.");
ABSL_FLAG(int,
starget_bitrate,
100,
"Screenshare stream target bitrate in kbps.");
ABSL_FLAG(int, smin_bitrate, 100, "Screenshare stream min bitrate in kbps.");
ABSL_FLAG(int, smax_bitrate, 2000, "Screenshare stream max bitrate in kbps.");
ABSL_FLAG(int,
snum_temporal_layers,
2,
"Number of temporal layers to use in screenshare.");
ABSL_FLAG(int,
snum_streams,
0,
"Number of screenshare streams to show or analyze.");
ABSL_FLAG(int,
snum_spatial_layers,
1,
"Number of screenshare spatial layers to use.");
ABSL_FLAG(int,
sinter_layer_pred,
0,
"Screenshare inter-layer prediction mode. "
"0 - enabled, 1 - disabled, 2 - enabled only for key pictures.");
ABSL_FLAG(
std::string,
sstream0,
"",
"Comma separated values describing VideoStream for screenshare stream #0.");
ABSL_FLAG(
std::string,
sstream1,
"",
"Comma separated values describing VideoStream for screenshare stream #1.");
ABSL_FLAG(
std::string,
ssl0,
"",
"Comma separated values describing SpatialLayer for screenshare layer #0.");
ABSL_FLAG(
std::string,
ssl1,
"",
"Comma separated values describing SpatialLayer for screenshare layer #1.");
ABSL_FLAG(int,
sselected_tl,
-1,
"Temporal layer to show or analyze for screenshare. -1 to disable "
"filtering.");
ABSL_FLAG(int,
sselected_stream,
0,
"ID of the stream to show or analyze for screenshare."
"Set to the number of streams to show them all.");
ABSL_FLAG(int,
sselected_sl,
-1,
"Spatial layer to show or analyze for screenshare. -1 to disable "
"filtering.");
ABSL_FLAG(bool,
generate_slides,
false,
"Whether to use randomly generated slides or read them from files.");
ABSL_FLAG(int,
slide_change_interval,
10,
"Interval (in seconds) between simulated slide changes.");
ABSL_FLAG(
int,
scroll_duration,
0,
"Duration (in seconds) during which a slide will be scrolled into place.");
ABSL_FLAG(std::string,
slides,
"",
"Comma-separated list of *.yuv files to display as slides.");
// Flags common with screenshare and video loopback, with equal default values.
ABSL_FLAG(int, start_bitrate, 600, "Call start bitrate in kbps.");
ABSL_FLAG(std::string, codec, "VP8", "Video codec to use.");
ABSL_FLAG(bool,
analyze_video,
false,
"Analyze video stream (if --duration is present)");
ABSL_FLAG(bool,
analyze_screenshare,
false,
"Analyze screenshare stream (if --duration is present)");
ABSL_FLAG(
int,
duration,
0,
"Duration of the test in seconds. If 0, rendered will be shown instead.");
ABSL_FLAG(std::string, output_filename, "", "Target graph data filename.");
ABSL_FLAG(std::string,
graph_title,
"",
"If empty, title will be generated automatically.");
ABSL_FLAG(int, loss_percent, 0, "Percentage of packets randomly lost.");
ABSL_FLAG(int,
avg_burst_loss_length,
-1,
"Average burst length of lost packets.");
ABSL_FLAG(int,
link_capacity,
0,
"Capacity (kbps) of the fake link. 0 means infinite.");
ABSL_FLAG(int, queue_size, 0, "Size of the bottleneck link queue in packets.");
ABSL_FLAG(int,
avg_propagation_delay_ms,
0,
"Average link propagation delay in ms.");
ABSL_FLAG(std::string,
rtc_event_log_name,
"",
"Filename for rtc event log. Two files "
"with \"_send\" and \"_recv\" suffixes will be created. "
"Works only when --duration is set.");
ABSL_FLAG(std::string,
rtp_dump_name,
"",
"Filename for dumped received RTP stream.");
ABSL_FLAG(int,
std_propagation_delay_ms,
0,
"Link propagation delay standard deviation in ms.");
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");
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(bool, use_ulpfec, false, "Use RED+ULPFEC forward error correction.");
ABSL_FLAG(bool, use_flexfec, false, "Use FlexFEC forward error correction.");
ABSL_FLAG(bool, audio, false, "Add audio stream");
ABSL_FLAG(bool,
audio_video_sync,
false,
"Sync audio and video stream (no effect if"
" audio is false)");
ABSL_FLAG(bool,
audio_dtx,
false,
"Enable audio DTX (no effect if audio is false)");
ABSL_FLAG(bool, video, true, "Add video stream");
// Video-specific flags.
ABSL_FLAG(std::string,
vclip,
"",
"Name of the clip to show. If empty, the camera is used. Use "
"\"Generator\" for chroma generator.");
namespace webrtc {
namespace {
InterLayerPredMode IntToInterLayerPredMode(int inter_layer_pred) {
if (inter_layer_pred == 0) {
return InterLayerPredMode::kOn;
} else if (inter_layer_pred == 1) {
return InterLayerPredMode::kOff;
} else {
RTC_DCHECK_EQ(inter_layer_pred, 2);
return InterLayerPredMode::kOnKeyPic;
}
}
size_t VideoWidth() {
return static_cast<size_t>(absl::GetFlag(FLAGS_vwidth));
}
size_t VideoHeight() {
return static_cast<size_t>(absl::GetFlag(FLAGS_vheight));
}
int VideoFps() {
return absl::GetFlag(FLAGS_vfps);
}
size_t GetCaptureDevice() {
return static_cast<size_t>(absl::GetFlag(FLAGS_capture_device_index));
}
int VideoTargetBitrateKbps() {
return absl::GetFlag(FLAGS_vtarget_bitrate);
}
int VideoMinBitrateKbps() {
return absl::GetFlag(FLAGS_vmin_bitrate);
}
int VideoMaxBitrateKbps() {
return absl::GetFlag(FLAGS_vmax_bitrate);
}
int VideoNumTemporalLayers() {
return absl::GetFlag(FLAGS_vnum_temporal_layers);
}
int VideoNumStreams() {
return absl::GetFlag(FLAGS_vnum_streams);
}
int VideoNumSpatialLayers() {
return absl::GetFlag(FLAGS_vnum_spatial_layers);
}
InterLayerPredMode VideoInterLayerPred() {
return IntToInterLayerPredMode(absl::GetFlag(FLAGS_vinter_layer_pred));
}
std::string VideoStream0() {
return absl::GetFlag(FLAGS_vstream0);
}
std::string VideoStream1() {
return absl::GetFlag(FLAGS_vstream1);
}
std::string VideoSL0() {
return absl::GetFlag(FLAGS_vsl0);
}
std::string VideoSL1() {
return absl::GetFlag(FLAGS_vsl1);
}
int VideoSelectedTL() {
return absl::GetFlag(FLAGS_vselected_tl);
}
int VideoSelectedStream() {
return absl::GetFlag(FLAGS_vselected_stream);
}
int VideoSelectedSL() {
return absl::GetFlag(FLAGS_vselected_sl);
}
int ScreenshareMinTransmitBitrateKbps() {
return absl::GetFlag(FLAGS_min_transmit_bitrate);
}
size_t ScreenshareWidth() {
return static_cast<size_t>(absl::GetFlag(FLAGS_swidth));
}
size_t ScreenshareHeight() {
return static_cast<size_t>(absl::GetFlag(FLAGS_sheight));
}
int ScreenshareFps() {
return absl::GetFlag(FLAGS_sfps);
}
int ScreenshareTargetBitrateKbps() {
return absl::GetFlag(FLAGS_starget_bitrate);
}
int ScreenshareMinBitrateKbps() {
return absl::GetFlag(FLAGS_smin_bitrate);
}
int ScreenshareMaxBitrateKbps() {
return absl::GetFlag(FLAGS_smax_bitrate);
}
int ScreenshareNumTemporalLayers() {
return absl::GetFlag(FLAGS_snum_temporal_layers);
}
int ScreenshareNumStreams() {
return absl::GetFlag(FLAGS_snum_streams);
}
int ScreenshareNumSpatialLayers() {
return absl::GetFlag(FLAGS_snum_spatial_layers);
}
InterLayerPredMode ScreenshareInterLayerPred() {
return IntToInterLayerPredMode(absl::GetFlag(FLAGS_sinter_layer_pred));
}
std::string ScreenshareStream0() {
return absl::GetFlag(FLAGS_sstream0);
}
std::string ScreenshareStream1() {
return absl::GetFlag(FLAGS_sstream1);
}
std::string ScreenshareSL0() {
return absl::GetFlag(FLAGS_ssl0);
}
std::string ScreenshareSL1() {
return absl::GetFlag(FLAGS_ssl1);
}
int ScreenshareSelectedTL() {
return absl::GetFlag(FLAGS_sselected_tl);
}
int ScreenshareSelectedStream() {
return absl::GetFlag(FLAGS_sselected_stream);
}
int ScreenshareSelectedSL() {
return absl::GetFlag(FLAGS_sselected_sl);
}
bool GenerateSlides() {
return absl::GetFlag(FLAGS_generate_slides);
}
int SlideChangeInterval() {
return absl::GetFlag(FLAGS_slide_change_interval);
}
int ScrollDuration() {
return absl::GetFlag(FLAGS_scroll_duration);
}
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;
}
int StartBitrateKbps() {
return absl::GetFlag(FLAGS_start_bitrate);
}
std::string Codec() {
return absl::GetFlag(FLAGS_codec);
}
bool AnalyzeVideo() {
return absl::GetFlag(FLAGS_analyze_video);
}
bool AnalyzeScreenshare() {
return absl::GetFlag(FLAGS_analyze_screenshare);
}
int DurationSecs() {
return absl::GetFlag(FLAGS_duration);
}
std::string OutputFilename() {
return absl::GetFlag(FLAGS_output_filename);
}
std::string GraphTitle() {
return absl::GetFlag(FLAGS_graph_title);
}
int LossPercent() {
return absl::GetFlag(FLAGS_loss_percent);
}
int AvgBurstLossLength() {
return absl::GetFlag(FLAGS_avg_burst_loss_length);
}
DataRate LinkCapacity() {
int link_capacity_kbps = absl::GetFlag(FLAGS_link_capacity);
return link_capacity_kbps == 0 ? DataRate::Infinity()
: DataRate::KilobitsPerSec(link_capacity_kbps);
}
int QueueSize() {
return absl::GetFlag(FLAGS_queue_size);
}
int AvgPropagationDelayMs() {
return absl::GetFlag(FLAGS_avg_propagation_delay_ms);
}
std::string RtcEventLogName() {
return absl::GetFlag(FLAGS_rtc_event_log_name);
}
std::string RtpDumpName() {
return absl::GetFlag(FLAGS_rtp_dump_name);
}
int StdPropagationDelayMs() {
return absl::GetFlag(FLAGS_std_propagation_delay_ms);
}
std::string EncodedFramePath() {
return absl::GetFlag(FLAGS_encoded_frame_path);
}
std::string VideoClip() {
return absl::GetFlag(FLAGS_vclip);
}
} // namespace
void Loopback() {
int camera_idx, screenshare_idx;
RTC_CHECK(!(AnalyzeScreenshare() && AnalyzeVideo()))
<< "Select only one of video or screenshare.";
RTC_CHECK(!DurationSecs() || AnalyzeScreenshare() || AnalyzeVideo())
<< "If duration is set, exactly one of analyze_* flags should be set.";
// Default: camera feed first, if nothing selected.
if (AnalyzeVideo() || !AnalyzeScreenshare()) {
camera_idx = 0;
screenshare_idx = 1;
} else {
camera_idx = 1;
screenshare_idx = 0;
}
BuiltInNetworkBehaviorConfig pipe_config;
pipe_config.loss_percent = LossPercent();
pipe_config.avg_burst_loss_length = AvgBurstLossLength();
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 =
(ScreenshareMinBitrateKbps() + VideoMinBitrateKbps()) * 1000;
call_bitrate_config.start_bitrate_bps = StartBitrateKbps() * 1000;
call_bitrate_config.max_bitrate_bps =
(ScreenshareMaxBitrateKbps() + VideoMaxBitrateKbps()) * 1000;
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.call.dual_video = true;
params.video[screenshare_idx].enabled = true;
params.video[screenshare_idx].width = ScreenshareWidth();
params.video[screenshare_idx].height = ScreenshareHeight();
params.video[screenshare_idx].fps = ScreenshareFps();
params.video[screenshare_idx].min_bitrate_bps =
ScreenshareMinBitrateKbps() * 1000;
params.video[screenshare_idx].target_bitrate_bps =
ScreenshareTargetBitrateKbps() * 1000;
params.video[screenshare_idx].max_bitrate_bps =
ScreenshareMaxBitrateKbps() * 1000;
params.video[screenshare_idx].codec = Codec();
params.video[screenshare_idx].num_temporal_layers =
ScreenshareNumTemporalLayers();
params.video[screenshare_idx].selected_tl = ScreenshareSelectedTL();
params.video[screenshare_idx].min_transmit_bps =
ScreenshareMinTransmitBitrateKbps() * 1000;
params.video[camera_idx].enabled = absl::GetFlag(FLAGS_video);
params.video[camera_idx].width = VideoWidth();
params.video[camera_idx].height = VideoHeight();
params.video[camera_idx].fps = VideoFps();
params.video[camera_idx].min_bitrate_bps = VideoMinBitrateKbps() * 1000;
params.video[camera_idx].target_bitrate_bps = VideoTargetBitrateKbps() * 1000;
params.video[camera_idx].max_bitrate_bps = VideoMaxBitrateKbps() * 1000;
params.video[camera_idx].suspend_below_min_bitrate =
absl::GetFlag(FLAGS_suspend_below_min_bitrate);
params.video[camera_idx].codec = Codec();
params.video[camera_idx].num_temporal_layers = VideoNumTemporalLayers();
params.video[camera_idx].selected_tl = VideoSelectedTL();
params.video[camera_idx].ulpfec = absl::GetFlag(FLAGS_use_ulpfec);
params.video[camera_idx].flexfec = absl::GetFlag(FLAGS_use_flexfec);
params.video[camera_idx].clip_path = VideoClip();
params.video[camera_idx].capture_device_index = GetCaptureDevice();
params.audio.enabled = absl::GetFlag(FLAGS_audio);
params.audio.sync_video = absl::GetFlag(FLAGS_audio_video_sync);
params.audio.dtx = absl::GetFlag(FLAGS_audio_dtx);
params.logging.rtc_event_log_name = RtcEventLogName();
params.logging.rtp_dump_name = RtpDumpName();
params.logging.encoded_frame_base_path = EncodedFramePath();
params.analyzer.test_label = "dual_streams";
params.analyzer.test_durations_secs = DurationSecs();
params.analyzer.graph_data_output_filename = OutputFilename();
params.analyzer.graph_title = GraphTitle();
params.config = pipe_config;
params.screenshare[camera_idx].enabled = false;
params.screenshare[screenshare_idx].enabled = true;
params.screenshare[screenshare_idx].generate_slides = GenerateSlides();
params.screenshare[screenshare_idx].slide_change_interval =
SlideChangeInterval();
params.screenshare[screenshare_idx].scroll_duration = ScrollDuration();
params.screenshare[screenshare_idx].slides = Slides();
if (VideoNumStreams() > 1 && VideoStream0().empty() &&
VideoStream1().empty()) {
params.ss[camera_idx].infer_streams = true;
}
if (ScreenshareNumStreams() > 1 && ScreenshareStream0().empty() &&
ScreenshareStream1().empty()) {
params.ss[screenshare_idx].infer_streams = true;
}
VideoQualityTest fixture(nullptr);
std::vector<std::string> stream_descriptors;
stream_descriptors.push_back(ScreenshareStream0());
stream_descriptors.push_back(ScreenshareStream1());
std::vector<std::string> SL_descriptors;
SL_descriptors.push_back(ScreenshareSL0());
SL_descriptors.push_back(ScreenshareSL1());
fixture.FillScalabilitySettings(
&params, screenshare_idx, stream_descriptors, ScreenshareNumStreams(),
ScreenshareSelectedStream(), ScreenshareNumSpatialLayers(),
ScreenshareSelectedSL(), ScreenshareInterLayerPred(), SL_descriptors);
stream_descriptors.clear();
stream_descriptors.push_back(VideoStream0());
stream_descriptors.push_back(VideoStream1());
SL_descriptors.clear();
SL_descriptors.push_back(VideoSL0());
SL_descriptors.push_back(VideoSL1());
fixture.FillScalabilitySettings(&params, camera_idx, stream_descriptors,
VideoNumStreams(), VideoSelectedStream(),
VideoNumSpatialLayers(), VideoSelectedSL(),
VideoInterLayerPred(), SL_descriptors);
if (DurationSecs()) {
fixture.RunWithAnalyzer(params);
} else {
fixture.RunWithRenderers(params);
}
}
} // namespace webrtc
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(webrtc::Loopback);
return 0;
}