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video_quality_test.cc
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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 "video/video_quality_test.h"
#include <stdio.h>
#include <algorithm>
#include <deque>
#include <map>
#include <sstream>
#include <string>
#include <vector>
#include "logging/rtc_event_log/output/rtc_event_log_output_file.h"
#include "media/engine/internalencoderfactory.h"
#include "media/engine/vp8_encoder_simulcast_proxy.h"
#include "media/engine/webrtcvideoengine.h"
#include "modules/audio_mixer/audio_mixer_impl.h"
#include "modules/video_coding/codecs/h264/include/h264.h"
#include "modules/video_coding/codecs/multiplex/include/multiplex_encoder_adapter.h"
#include "modules/video_coding/codecs/vp8/include/vp8.h"
#include "modules/video_coding/codecs/vp9/include/vp9.h"
#include "test/run_loop.h"
#include "test/testsupport/fileutils.h"
#include "test/video_renderer.h"
#include "video/video_analyzer.h"
namespace {
constexpr char kSyncGroup[] = "av_sync";
constexpr int kOpusMinBitrateBps = 6000;
constexpr int kOpusBitrateFbBps = 32000;
constexpr int kFramesSentInQuickTest = 1;
constexpr uint32_t kThumbnailSendSsrcStart = 0xE0000;
constexpr uint32_t kThumbnailRtxSsrcStart = 0xF0000;
constexpr int kDefaultMaxQp = cricket::WebRtcVideoChannel::kDefaultQpMax;
class VideoStreamFactory
: public webrtc::VideoEncoderConfig::VideoStreamFactoryInterface {
public:
explicit VideoStreamFactory(const std::vector<webrtc::VideoStream>& streams)
: streams_(streams) {}
private:
std::vector<webrtc::VideoStream> CreateEncoderStreams(
int width,
int height,
const webrtc::VideoEncoderConfig& encoder_config) override {
// The highest layer must match the incoming resolution.
std::vector<webrtc::VideoStream> streams = streams_;
streams[streams_.size() - 1].height = height;
streams[streams_.size() - 1].width = width;
streams[0].bitrate_priority = encoder_config.bitrate_priority;
return streams;
}
std::vector<webrtc::VideoStream> streams_;
};
} // namespace
namespace webrtc {
std::unique_ptr<VideoEncoder> VideoQualityTest::CreateVideoEncoder(
const SdpVideoFormat& format) {
if (format.name == "VP8") {
return absl::make_unique<VP8EncoderSimulcastProxy>(
&internal_encoder_factory_, format);
} else if (format.name == "multiplex") {
return absl::make_unique<MultiplexEncoderAdapter>(
&internal_encoder_factory_, SdpVideoFormat(cricket::kVp9CodecName));
}
return internal_encoder_factory_.CreateVideoEncoder(format);
}
VideoQualityTest::VideoQualityTest(
std::unique_ptr<FecControllerFactoryInterface> fec_controller_factory)
: clock_(Clock::GetRealTimeClock()),
video_encoder_factory_([this](const SdpVideoFormat& format) {
return this->CreateVideoEncoder(format);
}),
receive_logs_(0),
send_logs_(0) {
payload_type_map_ = test::CallTest::payload_type_map_;
RTC_DCHECK(payload_type_map_.find(kPayloadTypeH264) ==
payload_type_map_.end());
RTC_DCHECK(payload_type_map_.find(kPayloadTypeVP8) ==
payload_type_map_.end());
RTC_DCHECK(payload_type_map_.find(kPayloadTypeVP9) ==
payload_type_map_.end());
payload_type_map_[kPayloadTypeH264] = webrtc::MediaType::VIDEO;
payload_type_map_[kPayloadTypeVP8] = webrtc::MediaType::VIDEO;
payload_type_map_[kPayloadTypeVP9] = webrtc::MediaType::VIDEO;
fec_controller_factory_ = std::move(fec_controller_factory);
}
VideoQualityTest::Params::Params()
: call({false, BitrateConstraints(), 0}),
video{{false, 640, 480, 30, 50, 800, 800, false, "VP8", 1, -1, 0, false,
false, false, ""},
{false, 640, 480, 30, 50, 800, 800, false, "VP8", 1, -1, 0, false,
false, false, ""}},
audio({false, false, false}),
screenshare{{false, false, 10, 0}, {false, false, 10, 0}},
analyzer({"", 0.0, 0.0, 0, "", ""}),
pipe(),
ss{{std::vector<VideoStream>(), 0, 0, -1, InterLayerPredMode::kOn,
std::vector<SpatialLayer>()},
{std::vector<VideoStream>(), 0, 0, -1, InterLayerPredMode::kOn,
std::vector<SpatialLayer>()}},
logging({"", "", ""}) {}
VideoQualityTest::Params::~Params() = default;
void VideoQualityTest::TestBody() {}
std::string VideoQualityTest::GenerateGraphTitle() const {
std::stringstream ss;
ss << params_.video[0].codec;
ss << " (" << params_.video[0].target_bitrate_bps / 1000 << "kbps";
ss << ", " << params_.video[0].fps << " FPS";
if (params_.screenshare[0].scroll_duration)
ss << ", " << params_.screenshare[0].scroll_duration << "s scroll";
if (params_.ss[0].streams.size() > 1)
ss << ", Stream #" << params_.ss[0].selected_stream;
if (params_.ss[0].num_spatial_layers > 1)
ss << ", Layer #" << params_.ss[0].selected_sl;
ss << ")";
return ss.str();
}
void VideoQualityTest::CheckParams() {
for (size_t video_idx = 0; video_idx < num_video_streams_; ++video_idx) {
// Iterate over primary and secondary video streams.
if (!params_.video[video_idx].enabled)
return;
// Add a default stream in none specified.
if (params_.ss[video_idx].streams.empty())
params_.ss[video_idx].streams.push_back(
VideoQualityTest::DefaultVideoStream(params_, video_idx));
if (params_.ss[video_idx].num_spatial_layers == 0)
params_.ss[video_idx].num_spatial_layers = 1;
if (params_.pipe.loss_percent != 0 ||
params_.pipe.queue_length_packets != 0) {
// Since LayerFilteringTransport changes the sequence numbers, we can't
// use that feature with pack loss, since the NACK request would end up
// retransmitting the wrong packets.
RTC_CHECK(params_.ss[video_idx].selected_sl == -1 ||
params_.ss[video_idx].selected_sl ==
params_.ss[video_idx].num_spatial_layers - 1);
RTC_CHECK(params_.video[video_idx].selected_tl == -1 ||
params_.video[video_idx].selected_tl ==
params_.video[video_idx].num_temporal_layers - 1);
}
// TODO(ivica): Should max_bitrate_bps == -1 represent inf max bitrate, as
// it does in some parts of the code?
RTC_CHECK_GE(params_.video[video_idx].max_bitrate_bps,
params_.video[video_idx].target_bitrate_bps);
RTC_CHECK_GE(params_.video[video_idx].target_bitrate_bps,
params_.video[video_idx].min_bitrate_bps);
RTC_CHECK_LT(params_.video[video_idx].selected_tl,
params_.video[video_idx].num_temporal_layers);
RTC_CHECK_LE(params_.ss[video_idx].selected_stream,
params_.ss[video_idx].streams.size());
for (const VideoStream& stream : params_.ss[video_idx].streams) {
RTC_CHECK_GE(stream.min_bitrate_bps, 0);
RTC_CHECK_GE(stream.target_bitrate_bps, stream.min_bitrate_bps);
RTC_CHECK_GE(stream.max_bitrate_bps, stream.target_bitrate_bps);
}
// TODO(ivica): Should we check if the sum of all streams/layers is equal to
// the total bitrate? We anyway have to update them in the case bitrate
// estimator changes the total bitrates.
RTC_CHECK_GE(params_.ss[video_idx].num_spatial_layers, 1);
RTC_CHECK_LE(params_.ss[video_idx].selected_sl,
params_.ss[video_idx].num_spatial_layers);
RTC_CHECK(
params_.ss[video_idx].spatial_layers.empty() ||
params_.ss[video_idx].spatial_layers.size() ==
static_cast<size_t>(params_.ss[video_idx].num_spatial_layers));
if (params_.video[video_idx].codec == "VP8") {
RTC_CHECK_EQ(params_.ss[video_idx].num_spatial_layers, 1);
} else if (params_.video[video_idx].codec == "VP9") {
RTC_CHECK_EQ(params_.ss[video_idx].streams.size(), 1);
}
RTC_CHECK_GE(params_.call.num_thumbnails, 0);
if (params_.call.num_thumbnails > 0) {
RTC_CHECK_EQ(params_.ss[video_idx].num_spatial_layers, 1);
RTC_CHECK_EQ(params_.ss[video_idx].streams.size(), 3);
RTC_CHECK_EQ(params_.video[video_idx].num_temporal_layers, 3);
RTC_CHECK_EQ(params_.video[video_idx].codec, "VP8");
}
// Dual streams with FEC not supported in tests yet.
RTC_CHECK(!params_.video[video_idx].flexfec || num_video_streams_ == 1);
RTC_CHECK(!params_.video[video_idx].ulpfec || num_video_streams_ == 1);
}
}
// Static.
std::vector<int> VideoQualityTest::ParseCSV(const std::string& str) {
// Parse comma separated nonnegative integers, where some elements may be
// empty. The empty values are replaced with -1.
// E.g. "10,-20,,30,40" --> {10, 20, -1, 30,40}
// E.g. ",,10,,20," --> {-1, -1, 10, -1, 20, -1}
std::vector<int> result;
if (str.empty())
return result;
const char* p = str.c_str();
int value = -1;
int pos;
while (*p) {
if (*p == ',') {
result.push_back(value);
value = -1;
++p;
continue;
}
RTC_CHECK_EQ(sscanf(p, "%d%n", &value, &pos), 1)
<< "Unexpected non-number value.";
p += pos;
}
result.push_back(value);
return result;
}
// Static.
VideoStream VideoQualityTest::DefaultVideoStream(const Params& params,
size_t video_idx) {
VideoStream stream;
stream.width = params.video[video_idx].width;
stream.height = params.video[video_idx].height;
stream.max_framerate = params.video[video_idx].fps;
stream.min_bitrate_bps = params.video[video_idx].min_bitrate_bps;
stream.target_bitrate_bps = params.video[video_idx].target_bitrate_bps;
stream.max_bitrate_bps = params.video[video_idx].max_bitrate_bps;
stream.max_qp = kDefaultMaxQp;
stream.num_temporal_layers = params.video[video_idx].num_temporal_layers;
stream.active = true;
return stream;
}
// Static.
VideoStream VideoQualityTest::DefaultThumbnailStream() {
VideoStream stream;
stream.width = 320;
stream.height = 180;
stream.max_framerate = 7;
stream.min_bitrate_bps = 7500;
stream.target_bitrate_bps = 37500;
stream.max_bitrate_bps = 50000;
stream.max_qp = kDefaultMaxQp;
return stream;
}
// Static.
void VideoQualityTest::FillScalabilitySettings(
Params* params,
size_t video_idx,
const std::vector<std::string>& stream_descriptors,
int num_streams,
size_t selected_stream,
int num_spatial_layers,
int selected_sl,
InterLayerPredMode inter_layer_pred,
const std::vector<std::string>& sl_descriptors) {
if (params->ss[video_idx].streams.empty() &&
params->ss[video_idx].infer_streams) {
webrtc::VideoEncoderConfig encoder_config;
encoder_config.codec_type =
PayloadStringToCodecType(params->video[video_idx].codec);
encoder_config.content_type =
params->screenshare[video_idx].enabled
? webrtc::VideoEncoderConfig::ContentType::kScreen
: webrtc::VideoEncoderConfig::ContentType::kRealtimeVideo;
encoder_config.max_bitrate_bps = params->video[video_idx].max_bitrate_bps;
encoder_config.min_transmit_bitrate_bps =
params->video[video_idx].min_transmit_bps;
encoder_config.number_of_streams = num_streams;
encoder_config.spatial_layers = params->ss[video_idx].spatial_layers;
encoder_config.simulcast_layers = std::vector<VideoStream>(num_streams);
encoder_config.video_stream_factory =
new rtc::RefCountedObject<cricket::EncoderStreamFactory>(
params->video[video_idx].codec, kDefaultMaxQp,
params->video[video_idx].fps,
params->screenshare[video_idx].enabled, true);
params->ss[video_idx].streams =
encoder_config.video_stream_factory->CreateEncoderStreams(
static_cast<int>(params->video[video_idx].width),
static_cast<int>(params->video[video_idx].height), encoder_config);
} else {
// Read VideoStream and SpatialLayer elements from a list of comma separated
// lists. To use a default value for an element, use -1 or leave empty.
// Validity checks performed in CheckParams.
RTC_CHECK(params->ss[video_idx].streams.empty());
for (auto descriptor : stream_descriptors) {
if (descriptor.empty())
continue;
VideoStream stream =
VideoQualityTest::DefaultVideoStream(*params, video_idx);
std::vector<int> v = VideoQualityTest::ParseCSV(descriptor);
if (v[0] != -1)
stream.width = static_cast<size_t>(v[0]);
if (v[1] != -1)
stream.height = static_cast<size_t>(v[1]);
if (v[2] != -1)
stream.max_framerate = v[2];
if (v[3] != -1)
stream.min_bitrate_bps = v[3];
if (v[4] != -1)
stream.target_bitrate_bps = v[4];
if (v[5] != -1)
stream.max_bitrate_bps = v[5];
if (v.size() > 6 && v[6] != -1)
stream.max_qp = v[6];
if (v.size() > 7 && v[7] != -1) {
stream.num_temporal_layers = v[7];
} else {
// Automatic TL thresholds for more than two layers not supported.
RTC_CHECK_LE(params->video[video_idx].num_temporal_layers, 2);
}
params->ss[video_idx].streams.push_back(stream);
}
}
params->ss[video_idx].num_spatial_layers = std::max(1, num_spatial_layers);
params->ss[video_idx].selected_stream = selected_stream;
params->ss[video_idx].selected_sl = selected_sl;
params->ss[video_idx].inter_layer_pred = inter_layer_pred;
RTC_CHECK(params->ss[video_idx].spatial_layers.empty());
for (auto descriptor : sl_descriptors) {
if (descriptor.empty())
continue;
std::vector<int> v = VideoQualityTest::ParseCSV(descriptor);
RTC_CHECK_EQ(v.size(), 7);
SpatialLayer layer = {0};
layer.width = v[0];
layer.height = v[1];
layer.numberOfTemporalLayers = v[2];
layer.maxBitrate = v[3];
layer.minBitrate = v[4];
layer.targetBitrate = v[5];
layer.qpMax = v[6];
layer.active = true;
params->ss[video_idx].spatial_layers.push_back(layer);
}
}
void VideoQualityTest::SetupVideo(Transport* send_transport,
Transport* recv_transport) {
size_t total_streams_used = 0;
video_receive_configs_.clear();
video_send_configs_.clear();
video_encoder_configs_.clear();
allocated_decoders_.clear();
bool decode_all_receive_streams = true;
size_t num_video_substreams = params_.ss[0].streams.size();
RTC_CHECK(num_video_streams_ > 0);
video_encoder_configs_.resize(num_video_streams_);
for (size_t video_idx = 0; video_idx < num_video_streams_; ++video_idx) {
video_send_configs_.push_back(VideoSendStream::Config(send_transport));
video_encoder_configs_.push_back(VideoEncoderConfig());
num_video_substreams = params_.ss[video_idx].streams.size();
RTC_CHECK_GT(num_video_substreams, 0);
for (size_t i = 0; i < num_video_substreams; ++i)
video_send_configs_[video_idx].rtp.ssrcs.push_back(
kVideoSendSsrcs[total_streams_used + i]);
int payload_type;
if (params_.video[video_idx].codec == "H264") {
payload_type = kPayloadTypeH264;
} else if (params_.video[video_idx].codec == "VP8") {
payload_type = kPayloadTypeVP8;
} else if (params_.video[video_idx].codec == "VP9") {
payload_type = kPayloadTypeVP9;
} else if (params_.video[video_idx].codec == "multiplex") {
payload_type = kPayloadTypeVP9;
} else {
RTC_NOTREACHED() << "Codec not supported!";
return;
}
video_send_configs_[video_idx].encoder_settings.encoder_factory =
&video_encoder_factory_;
video_send_configs_[video_idx].rtp.payload_name =
params_.video[video_idx].codec;
video_send_configs_[video_idx].rtp.payload_type = payload_type;
video_send_configs_[video_idx].rtp.nack.rtp_history_ms = kNackRtpHistoryMs;
video_send_configs_[video_idx].rtp.rtx.payload_type = kSendRtxPayloadType;
for (size_t i = 0; i < num_video_substreams; ++i) {
video_send_configs_[video_idx].rtp.rtx.ssrcs.push_back(
kSendRtxSsrcs[i + total_streams_used]);
}
video_send_configs_[video_idx].rtp.extensions.clear();
if (params_.call.send_side_bwe) {
video_send_configs_[video_idx].rtp.extensions.push_back(
RtpExtension(RtpExtension::kTransportSequenceNumberUri,
test::kTransportSequenceNumberExtensionId));
} else {
video_send_configs_[video_idx].rtp.extensions.push_back(RtpExtension(
RtpExtension::kAbsSendTimeUri, test::kAbsSendTimeExtensionId));
}
video_send_configs_[video_idx].rtp.extensions.push_back(
RtpExtension(RtpExtension::kVideoContentTypeUri,
test::kVideoContentTypeExtensionId));
video_send_configs_[video_idx].rtp.extensions.push_back(RtpExtension(
RtpExtension::kVideoTimingUri, test::kVideoTimingExtensionId));
video_encoder_configs_[video_idx].video_format.name =
params_.video[video_idx].codec;
video_encoder_configs_[video_idx].video_format.parameters =
params_.video[video_idx].sdp_params;
video_encoder_configs_[video_idx].codec_type =
PayloadStringToCodecType(params_.video[video_idx].codec);
video_encoder_configs_[video_idx].min_transmit_bitrate_bps =
params_.video[video_idx].min_transmit_bps;
video_send_configs_[video_idx].suspend_below_min_bitrate =
params_.video[video_idx].suspend_below_min_bitrate;
video_encoder_configs_[video_idx].number_of_streams =
params_.ss[video_idx].streams.size();
video_encoder_configs_[video_idx].max_bitrate_bps = 0;
for (size_t i = 0; i < params_.ss[video_idx].streams.size(); ++i) {
video_encoder_configs_[video_idx].max_bitrate_bps +=
params_.ss[video_idx].streams[i].max_bitrate_bps;
}
if (params_.ss[video_idx].infer_streams) {
video_encoder_configs_[video_idx].simulcast_layers =
std::vector<VideoStream>(params_.ss[video_idx].streams.size());
video_encoder_configs_[video_idx].video_stream_factory =
new rtc::RefCountedObject<cricket::EncoderStreamFactory>(
params_.video[video_idx].codec,
params_.ss[video_idx].streams[0].max_qp,
params_.video[video_idx].fps,
params_.screenshare[video_idx].enabled, true);
} else {
video_encoder_configs_[video_idx].video_stream_factory =
new rtc::RefCountedObject<VideoStreamFactory>(
params_.ss[video_idx].streams);
}
video_encoder_configs_[video_idx].spatial_layers =
params_.ss[video_idx].spatial_layers;
decode_all_receive_streams = params_.ss[video_idx].selected_stream ==
params_.ss[video_idx].streams.size();
absl::optional<int> decode_sub_stream;
if (!decode_all_receive_streams)
decode_sub_stream = params_.ss[video_idx].selected_stream;
CreateMatchingVideoReceiveConfigs(
video_send_configs_[video_idx], recv_transport,
params_.call.send_side_bwe, decode_sub_stream, true, kNackRtpHistoryMs);
if (params_.screenshare[video_idx].enabled) {
// Fill out codec settings.
video_encoder_configs_[video_idx].content_type =
VideoEncoderConfig::ContentType::kScreen;
degradation_preference_ = DegradationPreference::MAINTAIN_RESOLUTION;
if (params_.video[video_idx].codec == "VP8") {
VideoCodecVP8 vp8_settings = VideoEncoder::GetDefaultVp8Settings();
vp8_settings.denoisingOn = false;
vp8_settings.frameDroppingOn = false;
vp8_settings.numberOfTemporalLayers = static_cast<unsigned char>(
params_.video[video_idx].num_temporal_layers);
video_encoder_configs_[video_idx].encoder_specific_settings =
new rtc::RefCountedObject<
VideoEncoderConfig::Vp8EncoderSpecificSettings>(vp8_settings);
} else if (params_.video[video_idx].codec == "VP9") {
VideoCodecVP9 vp9_settings = VideoEncoder::GetDefaultVp9Settings();
vp9_settings.denoisingOn = false;
vp9_settings.frameDroppingOn = false;
vp9_settings.numberOfTemporalLayers = static_cast<unsigned char>(
params_.video[video_idx].num_temporal_layers);
vp9_settings.numberOfSpatialLayers = static_cast<unsigned char>(
params_.ss[video_idx].num_spatial_layers);
vp9_settings.interLayerPred = params_.ss[video_idx].inter_layer_pred;
video_encoder_configs_[video_idx].encoder_specific_settings =
new rtc::RefCountedObject<
VideoEncoderConfig::Vp9EncoderSpecificSettings>(vp9_settings);
}
} else if (params_.ss[video_idx].num_spatial_layers > 1) {
// If SVC mode without screenshare, still need to set codec specifics.
RTC_CHECK(params_.video[video_idx].codec == "VP9");
VideoCodecVP9 vp9_settings = VideoEncoder::GetDefaultVp9Settings();
vp9_settings.numberOfTemporalLayers = static_cast<unsigned char>(
params_.video[video_idx].num_temporal_layers);
vp9_settings.numberOfSpatialLayers =
static_cast<unsigned char>(params_.ss[video_idx].num_spatial_layers);
vp9_settings.interLayerPred = params_.ss[video_idx].inter_layer_pred;
video_encoder_configs_[video_idx].encoder_specific_settings =
new rtc::RefCountedObject<
VideoEncoderConfig::Vp9EncoderSpecificSettings>(vp9_settings);
} else if (params_.video[video_idx].automatic_scaling) {
if (params_.video[video_idx].codec == "VP8") {
VideoCodecVP8 vp8_settings = VideoEncoder::GetDefaultVp8Settings();
vp8_settings.automaticResizeOn = true;
video_encoder_configs_[video_idx].encoder_specific_settings =
new rtc::RefCountedObject<
VideoEncoderConfig::Vp8EncoderSpecificSettings>(vp8_settings);
} else if (params_.video[video_idx].codec == "VP9") {
VideoCodecVP9 vp9_settings = VideoEncoder::GetDefaultVp9Settings();
vp9_settings.automaticResizeOn = true;
video_encoder_configs_[video_idx].encoder_specific_settings =
new rtc::RefCountedObject<
VideoEncoderConfig::Vp9EncoderSpecificSettings>(vp9_settings);
} else {
RTC_NOTREACHED() << "Automatic scaling not supported for codec "
<< params_.video[video_idx].codec << ", stream "
<< video_idx;
}
}
total_streams_used += num_video_substreams;
}
// FEC supported only for single video stream mode yet.
if (params_.video[0].flexfec) {
if (decode_all_receive_streams) {
SetSendFecConfig(GetVideoSendConfig()->rtp.ssrcs);
} else {
SetSendFecConfig({kVideoSendSsrcs[params_.ss[0].selected_stream]});
}
CreateMatchingFecConfig(recv_transport, *GetVideoSendConfig());
GetFlexFecConfig()->transport_cc = params_.call.send_side_bwe;
if (params_.call.send_side_bwe) {
GetFlexFecConfig()->rtp_header_extensions.push_back(
RtpExtension(RtpExtension::kTransportSequenceNumberUri,
test::kTransportSequenceNumberExtensionId));
} else {
GetFlexFecConfig()->rtp_header_extensions.push_back(RtpExtension(
RtpExtension::kAbsSendTimeUri, test::kAbsSendTimeExtensionId));
}
}
if (params_.video[0].ulpfec) {
SetSendUlpFecConfig(GetVideoSendConfig());
if (decode_all_receive_streams) {
for (auto& receive_config : video_receive_configs_) {
SetReceiveUlpFecConfig(&receive_config);
}
} else {
SetReceiveUlpFecConfig(
&video_receive_configs_[params_.ss[0].selected_stream]);
}
}
}
void VideoQualityTest::SetupThumbnails(Transport* send_transport,
Transport* recv_transport) {
for (int i = 0; i < params_.call.num_thumbnails; ++i) {
// Thumbnails will be send in the other way: from receiver_call to
// sender_call.
VideoSendStream::Config thumbnail_send_config(recv_transport);
thumbnail_send_config.rtp.ssrcs.push_back(kThumbnailSendSsrcStart + i);
// TODO(nisse): Could use a simpler VP8-only encoder factory.
thumbnail_send_config.encoder_settings.encoder_factory =
&video_encoder_factory_;
thumbnail_send_config.rtp.payload_name = params_.video[0].codec;
thumbnail_send_config.rtp.payload_type = kPayloadTypeVP8;
thumbnail_send_config.rtp.nack.rtp_history_ms = kNackRtpHistoryMs;
thumbnail_send_config.rtp.rtx.payload_type = kSendRtxPayloadType;
thumbnail_send_config.rtp.rtx.ssrcs.push_back(kThumbnailRtxSsrcStart + i);
thumbnail_send_config.rtp.extensions.clear();
if (params_.call.send_side_bwe) {
thumbnail_send_config.rtp.extensions.push_back(
RtpExtension(RtpExtension::kTransportSequenceNumberUri,
test::kTransportSequenceNumberExtensionId));
} else {
thumbnail_send_config.rtp.extensions.push_back(RtpExtension(
RtpExtension::kAbsSendTimeUri, test::kAbsSendTimeExtensionId));
}
VideoEncoderConfig thumbnail_encoder_config;
thumbnail_encoder_config.codec_type = kVideoCodecVP8;
thumbnail_encoder_config.video_format.name = "VP8";
thumbnail_encoder_config.min_transmit_bitrate_bps = 7500;
thumbnail_send_config.suspend_below_min_bitrate =
params_.video[0].suspend_below_min_bitrate;
thumbnail_encoder_config.number_of_streams = 1;
thumbnail_encoder_config.max_bitrate_bps = 50000;
if (params_.ss[0].infer_streams) {
thumbnail_encoder_config.video_stream_factory =
new rtc::RefCountedObject<VideoStreamFactory>(params_.ss[0].streams);
} else {
thumbnail_encoder_config.simulcast_layers = std::vector<VideoStream>(1);
thumbnail_encoder_config.video_stream_factory =
new rtc::RefCountedObject<cricket::EncoderStreamFactory>(
params_.video[0].codec, params_.ss[0].streams[0].max_qp,
params_.video[0].fps, params_.screenshare[0].enabled, true);
}
thumbnail_encoder_config.spatial_layers = params_.ss[0].spatial_layers;
thumbnail_encoder_configs_.push_back(thumbnail_encoder_config.Copy());
thumbnail_send_configs_.push_back(thumbnail_send_config.Copy());
AddMatchingVideoReceiveConfigs(
&thumbnail_receive_configs_, thumbnail_send_config, send_transport,
params_.call.send_side_bwe, absl::nullopt, false, kNackRtpHistoryMs);
}
for (size_t i = 0; i < thumbnail_send_configs_.size(); ++i) {
thumbnail_send_streams_.push_back(receiver_call_->CreateVideoSendStream(
thumbnail_send_configs_[i].Copy(),
thumbnail_encoder_configs_[i].Copy()));
}
for (size_t i = 0; i < thumbnail_receive_configs_.size(); ++i) {
thumbnail_receive_streams_.push_back(sender_call_->CreateVideoReceiveStream(
thumbnail_receive_configs_[i].Copy()));
}
}
void VideoQualityTest::DestroyThumbnailStreams() {
for (VideoSendStream* thumbnail_send_stream : thumbnail_send_streams_) {
receiver_call_->DestroyVideoSendStream(thumbnail_send_stream);
}
thumbnail_send_streams_.clear();
for (VideoReceiveStream* thumbnail_receive_stream :
thumbnail_receive_streams_) {
sender_call_->DestroyVideoReceiveStream(thumbnail_receive_stream);
}
thumbnail_send_streams_.clear();
thumbnail_receive_streams_.clear();
for (std::unique_ptr<test::VideoCapturer>& video_caputurer :
thumbnail_capturers_) {
video_caputurer.reset();
}
}
void VideoQualityTest::SetupThumbnailCapturers(size_t num_thumbnail_streams) {
VideoStream thumbnail = DefaultThumbnailStream();
for (size_t i = 0; i < num_thumbnail_streams; ++i) {
thumbnail_capturers_.emplace_back(test::FrameGeneratorCapturer::Create(
static_cast<int>(thumbnail.width), static_cast<int>(thumbnail.height),
absl::nullopt, absl::nullopt, thumbnail.max_framerate, clock_));
RTC_DCHECK(thumbnail_capturers_.back());
}
}
std::unique_ptr<test::FrameGenerator> VideoQualityTest::CreateFrameGenerator(
size_t video_idx) {
// Setup frame generator.
const size_t kWidth = 1850;
const size_t kHeight = 1110;
std::unique_ptr<test::FrameGenerator> frame_generator;
if (params_.screenshare[video_idx].generate_slides) {
frame_generator = test::FrameGenerator::CreateSlideGenerator(
kWidth, kHeight,
params_.screenshare[video_idx].slide_change_interval *
params_.video[video_idx].fps);
} else {
std::vector<std::string> slides = params_.screenshare[video_idx].slides;
if (slides.size() == 0) {
slides.push_back(test::ResourcePath("web_screenshot_1850_1110", "yuv"));
slides.push_back(test::ResourcePath("presentation_1850_1110", "yuv"));
slides.push_back(test::ResourcePath("photo_1850_1110", "yuv"));
slides.push_back(test::ResourcePath("difficult_photo_1850_1110", "yuv"));
}
if (params_.screenshare[video_idx].scroll_duration == 0) {
// Cycle image every slide_change_interval seconds.
frame_generator = test::FrameGenerator::CreateFromYuvFile(
slides, kWidth, kHeight,
params_.screenshare[video_idx].slide_change_interval *
params_.video[video_idx].fps);
} else {
RTC_CHECK_LE(params_.video[video_idx].width, kWidth);
RTC_CHECK_LE(params_.video[video_idx].height, kHeight);
RTC_CHECK_GT(params_.screenshare[video_idx].slide_change_interval, 0);
const int kPauseDurationMs =
(params_.screenshare[video_idx].slide_change_interval -
params_.screenshare[video_idx].scroll_duration) *
1000;
RTC_CHECK_LE(params_.screenshare[video_idx].scroll_duration,
params_.screenshare[video_idx].slide_change_interval);
frame_generator = test::FrameGenerator::CreateScrollingInputFromYuvFiles(
clock_, slides, kWidth, kHeight, params_.video[video_idx].width,
params_.video[video_idx].height,
params_.screenshare[video_idx].scroll_duration * 1000,
kPauseDurationMs);
}
}
return frame_generator;
}
void VideoQualityTest::CreateCapturers() {
RTC_DCHECK(video_sources_.empty());
RTC_DCHECK(video_capturers_.empty());
video_capturers_.resize(num_video_streams_);
for (size_t video_idx = 0; video_idx < num_video_streams_; ++video_idx) {
if (params_.screenshare[video_idx].enabled) {
std::unique_ptr<test::FrameGenerator> frame_generator =
CreateFrameGenerator(video_idx);
test::FrameGeneratorCapturer* frame_generator_capturer =
new test::FrameGeneratorCapturer(clock_, std::move(frame_generator),
params_.video[video_idx].fps);
EXPECT_TRUE(frame_generator_capturer->Init());
video_capturers_[video_idx].reset(frame_generator_capturer);
} else {
if (params_.video[video_idx].clip_name == "Generator") {
video_capturers_[video_idx].reset(test::FrameGeneratorCapturer::Create(
static_cast<int>(params_.video[video_idx].width),
static_cast<int>(params_.video[video_idx].height), absl::nullopt,
absl::nullopt, params_.video[video_idx].fps, clock_));
} else if (params_.video[video_idx].clip_name == "GeneratorI420A") {
video_capturers_[video_idx].reset(test::FrameGeneratorCapturer::Create(
static_cast<int>(params_.video[video_idx].width),
static_cast<int>(params_.video[video_idx].height),
test::FrameGenerator::OutputType::I420A, absl::nullopt,
params_.video[video_idx].fps, clock_));
} else if (params_.video[video_idx].clip_name == "GeneratorI010") {
video_capturers_[video_idx].reset(test::FrameGeneratorCapturer::Create(
static_cast<int>(params_.video[video_idx].width),
static_cast<int>(params_.video[video_idx].height),
test::FrameGenerator::OutputType::I010, absl::nullopt,
params_.video[video_idx].fps, clock_));
} else if (params_.video[video_idx].clip_name.empty()) {
video_capturers_[video_idx].reset(test::VcmCapturer::Create(
params_.video[video_idx].width, params_.video[video_idx].height,
params_.video[video_idx].fps,
params_.video[video_idx].capture_device_index));
if (!video_capturers_[video_idx]) {
// Failed to get actual camera, use chroma generator as backup.
video_capturers_[video_idx].reset(
test::FrameGeneratorCapturer::Create(
static_cast<int>(params_.video[video_idx].width),
static_cast<int>(params_.video[video_idx].height),
absl::nullopt, absl::nullopt, params_.video[video_idx].fps,
clock_));
}
} else {
video_capturers_[video_idx].reset(
test::FrameGeneratorCapturer::CreateFromYuvFile(
test::ResourcePath(params_.video[video_idx].clip_name, "yuv"),
params_.video[video_idx].width, params_.video[video_idx].height,
params_.video[video_idx].fps, clock_));
ASSERT_TRUE(video_capturers_[video_idx])
<< "Could not create capturer for "
<< params_.video[video_idx].clip_name
<< ".yuv. Is this resource file present?";
}
}
RTC_DCHECK(video_capturers_[video_idx].get());
video_sources_.push_back(video_capturers_[video_idx].get());
}
}
void VideoQualityTest::StartAudioStreams() {
audio_send_stream_->Start();
for (AudioReceiveStream* audio_recv_stream : audio_receive_streams_)
audio_recv_stream->Start();
}
void VideoQualityTest::StartThumbnailCapture() {
for (std::unique_ptr<test::VideoCapturer>& capturer : thumbnail_capturers_)
capturer->Start();
}
void VideoQualityTest::StopThumbnailCapture() {
for (std::unique_ptr<test::VideoCapturer>& capturer : thumbnail_capturers_)
capturer->Stop();
}
void VideoQualityTest::StartThumbnails() {
for (VideoSendStream* send_stream : thumbnail_send_streams_)
send_stream->Start();
for (VideoReceiveStream* receive_stream : thumbnail_receive_streams_)
receive_stream->Start();
}
void VideoQualityTest::StopThumbnails() {
for (VideoReceiveStream* receive_stream : thumbnail_receive_streams_)
receive_stream->Stop();
for (VideoSendStream* send_stream : thumbnail_send_streams_)
send_stream->Stop();
}
std::unique_ptr<test::LayerFilteringTransport>
VideoQualityTest::CreateSendTransport() {
return absl::make_unique<test::LayerFilteringTransport>(
&task_queue_, params_.pipe, sender_call_.get(), kPayloadTypeVP8,
kPayloadTypeVP9, params_.video[0].selected_tl, params_.ss[0].selected_sl,
payload_type_map_, kVideoSendSsrcs[0],
static_cast<uint32_t>(kVideoSendSsrcs[0] + params_.ss[0].streams.size() -
1));
}
std::unique_ptr<test::DirectTransport>
VideoQualityTest::CreateReceiveTransport() {
return absl::make_unique<test::DirectTransport>(
&task_queue_, params_.pipe, receiver_call_.get(), payload_type_map_);
}
void VideoQualityTest::RunWithAnalyzer(const Params& params) {
num_video_streams_ = params.call.dual_video ? 2 : 1;
std::unique_ptr<test::LayerFilteringTransport> send_transport;
std::unique_ptr<test::DirectTransport> recv_transport;
FILE* graph_data_output_file = nullptr;
std::unique_ptr<VideoAnalyzer> analyzer;
params_ = params;
// TODO(ivica): Merge with RunWithRenderer and use a flag / argument to
// differentiate between the analyzer and the renderer case.
CheckParams();
if (!params_.analyzer.graph_data_output_filename.empty()) {
graph_data_output_file =
fopen(params_.analyzer.graph_data_output_filename.c_str(), "w");
RTC_CHECK(graph_data_output_file)
<< "Can't open the file " << params_.analyzer.graph_data_output_filename
<< "!";
}
if (!params.logging.rtc_event_log_name.empty()) {
send_event_log_ = RtcEventLog::Create(RtcEventLog::EncodingType::Legacy);
recv_event_log_ = RtcEventLog::Create(RtcEventLog::EncodingType::Legacy);
std::unique_ptr<RtcEventLogOutputFile> send_output(
absl::make_unique<RtcEventLogOutputFile>(
params.logging.rtc_event_log_name + "_send",
RtcEventLog::kUnlimitedOutput));
std::unique_ptr<RtcEventLogOutputFile> recv_output(
absl::make_unique<RtcEventLogOutputFile>(
params.logging.rtc_event_log_name + "_recv",
RtcEventLog::kUnlimitedOutput));
bool event_log_started =
send_event_log_->StartLogging(std::move(send_output),
RtcEventLog::kImmediateOutput) &&
recv_event_log_->StartLogging(std::move(recv_output),
RtcEventLog::kImmediateOutput);
RTC_DCHECK(event_log_started);
} else {
send_event_log_ = RtcEventLog::CreateNull();
recv_event_log_ = RtcEventLog::CreateNull();
}
Call::Config send_call_config(send_event_log_.get());
Call::Config recv_call_config(recv_event_log_.get());
send_call_config.bitrate_config = params.call.call_bitrate_config;
recv_call_config.bitrate_config = params.call.call_bitrate_config;
task_queue_.SendTask([this, &send_call_config, &recv_call_config,
&send_transport, &recv_transport]() {
if (params_.audio.enabled)
InitializeAudioDevice(&send_call_config, &recv_call_config);
CreateCalls(send_call_config, recv_call_config);
send_transport = CreateSendTransport();
recv_transport = CreateReceiveTransport();
});
std::string graph_title = params_.analyzer.graph_title;
if (graph_title.empty())
graph_title = VideoQualityTest::GenerateGraphTitle();
bool is_quick_test_enabled = field_trial::IsEnabled("WebRTC-QuickPerfTest");
analyzer = absl::make_unique<VideoAnalyzer>(
send_transport.get(), params_.analyzer.test_label,
params_.analyzer.avg_psnr_threshold, params_.analyzer.avg_ssim_threshold,
is_quick_test_enabled
? kFramesSentInQuickTest
: params_.analyzer.test_durations_secs * params_.video[0].fps,
graph_data_output_file, graph_title,
kVideoSendSsrcs[params_.ss[0].selected_stream],
kSendRtxSsrcs[params_.ss[0].selected_stream],
static_cast<size_t>(params_.ss[0].selected_stream),
params.ss[0].selected_sl, params_.video[0].selected_tl,
is_quick_test_enabled, clock_, params_.logging.rtp_dump_name);
task_queue_.SendTask([&]() {
analyzer->SetCall(sender_call_.get());
analyzer->SetReceiver(receiver_call_->Receiver());
send_transport->SetReceiver(analyzer.get());
recv_transport->SetReceiver(sender_call_->Receiver());
SetupVideo(analyzer.get(), recv_transport.get());
SetupThumbnails(analyzer.get(), recv_transport.get());
video_receive_configs_[params_.ss[0].selected_stream].renderer =
analyzer.get();
GetVideoSendConfig()->pre_encode_callback = analyzer->pre_encode_proxy();
RTC_DCHECK(!GetVideoSendConfig()->post_encode_callback);
GetVideoSendConfig()->post_encode_callback = analyzer.get();
CreateFlexfecStreams();
CreateVideoStreams();
analyzer->SetSendStream(video_send_streams_[0]);
if (video_receive_streams_.size() == 1)
analyzer->SetReceiveStream(video_receive_streams_[0]);
GetVideoSendStream()->SetSource(analyzer->OutputInterface(),
degradation_preference_);
SetupThumbnailCapturers(params_.call.num_thumbnails);
for (size_t i = 0; i < thumbnail_send_streams_.size(); ++i) {
thumbnail_send_streams_[i]->SetSource(thumbnail_capturers_[i].get(),
degradation_preference_);
}
CreateCapturers();
analyzer->SetSource(video_capturers_[0].get(), params_.ss[0].infer_streams);
for (size_t video_idx = 1; video_idx < num_video_streams_; ++video_idx) {
video_send_streams_[video_idx]->SetSource(
video_capturers_[video_idx].get(), degradation_preference_);
}
StartEncodedFrameLogs(GetVideoSendStream());
StartEncodedFrameLogs(
video_receive_streams_[params_.ss[0].selected_stream]);
if (params_.audio.enabled) {
SetupAudio(send_transport.get());
StartAudioStreams();
analyzer->SetAudioReceiveStream(audio_receive_streams_[0]);
}
StartVideoStreams();
StartThumbnails();
analyzer->StartMeasuringCpuProcessTime();
StartVideoCapture();
StartThumbnailCapture();
});
analyzer->Wait();
task_queue_.SendTask([&]() {
StopThumbnailCapture();
StopThumbnails();
Stop();
DestroyStreams();
DestroyThumbnailStreams();
if (graph_data_output_file)
fclose(graph_data_output_file);
video_capturers_.clear();
send_transport.reset();
recv_transport.reset();
DestroyCalls();
});
}
void VideoQualityTest::InitializeAudioDevice(Call::Config* send_call_config,
Call::Config* recv_call_config) {
rtc::scoped_refptr<TestAudioDeviceModule> fake_audio_device =
TestAudioDeviceModule::CreateTestAudioDeviceModule(
TestAudioDeviceModule::CreatePulsedNoiseCapturer(32000, 48000),
TestAudioDeviceModule::CreateDiscardRenderer(48000), 1.f);
AudioState::Config audio_state_config;
audio_state_config.audio_mixer = AudioMixerImpl::Create();
audio_state_config.audio_processing = AudioProcessingBuilder().Create();
audio_state_config.audio_device_module = fake_audio_device;
send_call_config->audio_state = AudioState::Create(audio_state_config);
RTC_CHECK(fake_audio_device->RegisterAudioCallback(
send_call_config->audio_state->audio_transport()) == 0);
recv_call_config->audio_state = AudioState::Create(audio_state_config);
fake_audio_device->Init();
}
void VideoQualityTest::SetupAudio(Transport* transport) {
AudioSendStream::Config audio_send_config(transport);
audio_send_config.rtp.ssrc = kAudioSendSsrc;
// Add extension to enable audio send side BWE, and allow audio bit rate
// adaptation.
audio_send_config.rtp.extensions.clear();
audio_send_config.send_codec_spec = AudioSendStream::Config::SendCodecSpec(
kAudioSendPayloadType,
{"OPUS",
48000,
2,
{{"usedtx", (params_.audio.dtx ? "1" : "0")}, {"stereo", "1"}}});
if (params_.call.send_side_bwe) {
audio_send_config.rtp.extensions.push_back(
webrtc::RtpExtension(webrtc::RtpExtension::kTransportSequenceNumberUri,
test::kTransportSequenceNumberExtensionId));
audio_send_config.min_bitrate_bps = kOpusMinBitrateBps;
audio_send_config.max_bitrate_bps = kOpusBitrateFbBps;
audio_send_config.send_codec_spec->transport_cc_enabled = true;
}
audio_send_config.encoder_factory = audio_encoder_factory_;
SetAudioConfig(audio_send_config);
std::string sync_group;
if (params_.video[0].enabled && params_.audio.sync_video)
sync_group = kSyncGroup;