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Diffstat (limited to '')
-rw-r--r-- | third_party/libwebrtc/modules/audio_coding/audio_network_adaptor/event_log_writer.cc | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/audio_coding/audio_network_adaptor/event_log_writer.cc b/third_party/libwebrtc/modules/audio_coding/audio_network_adaptor/event_log_writer.cc new file mode 100644 index 0000000000..0a79484a16 --- /dev/null +++ b/third_party/libwebrtc/modules/audio_coding/audio_network_adaptor/event_log_writer.cc @@ -0,0 +1,78 @@ +/* + * Copyright (c) 2016 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 "modules/audio_coding/audio_network_adaptor/event_log_writer.h" + +#include <math.h> + +#include <algorithm> +#include <cstdlib> +#include <memory> +#include <utility> + +#include "absl/types/optional.h" +#include "api/rtc_event_log/rtc_event.h" +#include "api/rtc_event_log/rtc_event_log.h" +#include "logging/rtc_event_log/events/rtc_event_audio_network_adaptation.h" +#include "rtc_base/checks.h" + +namespace webrtc { + +EventLogWriter::EventLogWriter(RtcEventLog* event_log, + int min_bitrate_change_bps, + float min_bitrate_change_fraction, + float min_packet_loss_change_fraction) + : event_log_(event_log), + min_bitrate_change_bps_(min_bitrate_change_bps), + min_bitrate_change_fraction_(min_bitrate_change_fraction), + min_packet_loss_change_fraction_(min_packet_loss_change_fraction) { + RTC_DCHECK(event_log_); +} + +EventLogWriter::~EventLogWriter() = default; + +void EventLogWriter::MaybeLogEncoderConfig( + const AudioEncoderRuntimeConfig& config) { + if (last_logged_config_.num_channels != config.num_channels) + return LogEncoderConfig(config); + if (last_logged_config_.enable_dtx != config.enable_dtx) + return LogEncoderConfig(config); + if (last_logged_config_.enable_fec != config.enable_fec) + return LogEncoderConfig(config); + if (last_logged_config_.frame_length_ms != config.frame_length_ms) + return LogEncoderConfig(config); + if ((!last_logged_config_.bitrate_bps && config.bitrate_bps) || + (last_logged_config_.bitrate_bps && config.bitrate_bps && + std::abs(*last_logged_config_.bitrate_bps - *config.bitrate_bps) >= + std::min(static_cast<int>(*last_logged_config_.bitrate_bps * + min_bitrate_change_fraction_), + min_bitrate_change_bps_))) { + return LogEncoderConfig(config); + } + if ((!last_logged_config_.uplink_packet_loss_fraction && + config.uplink_packet_loss_fraction) || + (last_logged_config_.uplink_packet_loss_fraction && + config.uplink_packet_loss_fraction && + fabs(*last_logged_config_.uplink_packet_loss_fraction - + *config.uplink_packet_loss_fraction) >= + min_packet_loss_change_fraction_ * + *last_logged_config_.uplink_packet_loss_fraction)) { + return LogEncoderConfig(config); + } +} + +void EventLogWriter::LogEncoderConfig(const AudioEncoderRuntimeConfig& config) { + auto config_copy = std::make_unique<AudioEncoderRuntimeConfig>(config); + event_log_->Log( + std::make_unique<RtcEventAudioNetworkAdaptation>(std::move(config_copy))); + last_logged_config_ = config; +} + +} // namespace webrtc |