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/*
* Copyright (c) 2020 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 "test/pc/e2e/peer_configurer.h"
#include <set>
#include "absl/strings/string_view.h"
#include "rtc_base/arraysize.h"
#include "test/testsupport/file_utils.h"
namespace webrtc {
namespace webrtc_pc_e2e {
namespace {
using AudioConfig = PeerConnectionE2EQualityTestFixture::AudioConfig;
using VideoConfig = PeerConnectionE2EQualityTestFixture::VideoConfig;
using RunParams = PeerConnectionE2EQualityTestFixture::RunParams;
using VideoCodecConfig = PeerConnectionE2EQualityTestFixture::VideoCodecConfig;
// List of default names of generic participants according to
// https://en.wikipedia.org/wiki/Alice_and_Bob
constexpr absl::string_view kDefaultNames[] = {"alice", "bob", "charlie",
"david", "erin", "frank"};
class DefaultNamesProvider {
public:
// Caller have to ensure that default names array will outlive names provider
// instance.
explicit DefaultNamesProvider(
absl::string_view prefix,
rtc::ArrayView<const absl::string_view> default_names = {})
: prefix_(prefix), default_names_(default_names) {}
void MaybeSetName(absl::optional<std::string>* name) {
if (name->has_value()) {
known_names_.insert(name->value());
} else {
*name = GenerateName();
}
}
private:
std::string GenerateName() {
std::string name;
do {
name = GenerateNameInternal();
} while (!known_names_.insert(name).second);
return name;
}
std::string GenerateNameInternal() {
if (counter_ < default_names_.size()) {
return std::string(default_names_[counter_++]);
}
return prefix_ + std::to_string(counter_++);
}
const std::string prefix_;
const rtc::ArrayView<const absl::string_view> default_names_;
std::set<std::string> known_names_;
size_t counter_ = 0;
};
} // namespace
void SetDefaultValuesForMissingParams(
RunParams* run_params,
std::vector<std::unique_ptr<PeerConfigurerImpl>>* peers) {
DefaultNamesProvider peer_names_provider("peer_", kDefaultNames);
for (size_t i = 0; i < peers->size(); ++i) {
auto* peer = peers->at(i).get();
auto* p = peer->params();
peer_names_provider.MaybeSetName(&p->name);
DefaultNamesProvider video_stream_names_provider(
*p->name + "_auto_video_stream_label_");
for (VideoConfig& video_config : p->video_configs) {
video_stream_names_provider.MaybeSetName(&video_config.stream_label);
}
if (p->audio_config) {
DefaultNamesProvider audio_stream_names_provider(
*p->name + "_auto_audio_stream_label_");
audio_stream_names_provider.MaybeSetName(&p->audio_config->stream_label);
}
}
if (run_params->video_codecs.empty()) {
run_params->video_codecs.push_back(
VideoCodecConfig(cricket::kVp8CodecName));
}
}
void ValidateParams(
const RunParams& run_params,
const std::vector<std::unique_ptr<PeerConfigurerImpl>>& peers) {
RTC_CHECK_GT(run_params.video_encoder_bitrate_multiplier, 0.0);
RTC_CHECK_GE(run_params.video_codecs.size(), 1);
std::set<std::string> peer_names;
std::set<std::string> video_labels;
std::set<std::string> audio_labels;
std::set<std::string> video_sync_groups;
std::set<std::string> audio_sync_groups;
int media_streams_count = 0;
for (size_t i = 0; i < peers.size(); ++i) {
Params* p = peers[i]->params();
{
RTC_CHECK(p->name);
bool inserted = peer_names.insert(p->name.value()).second;
RTC_CHECK(inserted) << "Duplicate name=" << p->name.value();
}
if (p->audio_config) {
media_streams_count++;
}
media_streams_count += p->video_configs.size();
// Validate that all video stream labels are unique and sync groups are
// valid.
for (const VideoConfig& video_config : p->video_configs) {
RTC_CHECK(video_config.stream_label);
bool inserted =
video_labels.insert(video_config.stream_label.value()).second;
RTC_CHECK(inserted) << "Duplicate video_config.stream_label="
<< video_config.stream_label.value();
// TODO(bugs.webrtc.org/4762): remove this check after synchronization of
// more than two streams is supported.
if (video_config.sync_group.has_value()) {
bool sync_group_inserted =
video_sync_groups.insert(video_config.sync_group.value()).second;
RTC_CHECK(sync_group_inserted)
<< "Sync group shouldn't consist of more than two streams (one "
"video and one audio). Duplicate video_config.sync_group="
<< video_config.sync_group.value();
}
if (video_config.simulcast_config) {
if (video_config.simulcast_config->target_spatial_index) {
RTC_CHECK_GE(*video_config.simulcast_config->target_spatial_index, 0);
RTC_CHECK_LT(*video_config.simulcast_config->target_spatial_index,
video_config.simulcast_config->simulcast_streams_count);
}
RTC_CHECK_EQ(run_params.video_codecs.size(), 1)
<< "Only 1 video codec is supported when simulcast is enabled in "
<< "at least 1 video config";
RTC_CHECK(!video_config.max_encode_bitrate_bps)
<< "Setting max encode bitrate is not implemented for simulcast.";
RTC_CHECK(!video_config.min_encode_bitrate_bps)
<< "Setting min encode bitrate is not implemented for simulcast.";
if (run_params.video_codecs[0].name == cricket::kVp8CodecName &&
!video_config.simulcast_config->encoding_params.empty()) {
RTC_CHECK_EQ(video_config.simulcast_config->simulcast_streams_count,
video_config.simulcast_config->encoding_params.size())
<< "|encoding_params| have to be specified for each simulcast "
<< "stream in |simulcast_config|.";
}
}
}
if (p->audio_config) {
bool inserted =
audio_labels.insert(p->audio_config->stream_label.value()).second;
RTC_CHECK(inserted) << "Duplicate audio_config.stream_label="
<< p->audio_config->stream_label.value();
// TODO(bugs.webrtc.org/4762): remove this check after synchronization of
// more than two streams is supported.
if (p->audio_config->sync_group.has_value()) {
bool sync_group_inserted =
audio_sync_groups.insert(p->audio_config->sync_group.value())
.second;
RTC_CHECK(sync_group_inserted)
<< "Sync group shouldn't consist of more than two streams (one "
"video and one audio). Duplicate audio_config.sync_group="
<< p->audio_config->sync_group.value();
}
// Check that if mode input file name specified only if mode is kFile.
if (p->audio_config.value().mode == AudioConfig::Mode::kGenerated) {
RTC_CHECK(!p->audio_config.value().input_file_name);
}
if (p->audio_config.value().mode == AudioConfig::Mode::kFile) {
RTC_CHECK(p->audio_config.value().input_file_name);
RTC_CHECK(
test::FileExists(p->audio_config.value().input_file_name.value()))
<< p->audio_config.value().input_file_name.value()
<< " doesn't exist";
}
}
}
RTC_CHECK_GT(media_streams_count, 0) << "No media in the call.";
}
} // namespace webrtc_pc_e2e
} // namespace webrtc
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