| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| //#define LOG_NDEBUG 0 |
| #define LOG_TAG "AudioAnalytics" |
| #include <android-base/logging.h> |
| #include <utils/Log.h> |
| |
| #include "AudioAnalytics.h" |
| |
| #include <aaudio/AAudio.h> // error codes |
| #include <audio_utils/clock.h> // clock conversions |
| #include <cutils/properties.h> |
| #include <statslog.h> // statsd |
| #include <system/audio.h> |
| |
| #include "AudioTypes.h" // string to int conversions |
| #include "MediaMetricsService.h" // package info |
| #include "StringUtils.h" |
| #include "ValidateId.h" |
| |
| #define PROP_AUDIO_ANALYTICS_CLOUD_ENABLED "persist.audio.analytics.cloud.enabled" |
| |
| namespace android::mediametrics { |
| |
| // Enable for testing of delivery to statsd. Caution if this is enabled, all protos MUST exist. |
| #define STATSD_ENABLE |
| |
| #ifdef STATSD_ENABLE |
| #define CONDITION(INT_VALUE) (INT_VALUE) // allow value |
| #else |
| #define CONDITION(INT_VALUE) (int(0)) // mask value since the proto may not be defined yet. |
| #endif |
| |
| // Maximum length of a device name. |
| // static constexpr size_t STATSD_DEVICE_NAME_MAX_LENGTH = 32; // unused since we suppress |
| |
| // Transmit Enums to statsd in integer or strings (this must match the atoms.proto) |
| static constexpr bool STATSD_USE_INT_FOR_ENUM = false; |
| |
| // derive types based on integer or strings. |
| using short_enum_type_t = std::conditional_t<STATSD_USE_INT_FOR_ENUM, int32_t, std::string>; |
| using long_enum_type_t = std::conditional_t<STATSD_USE_INT_FOR_ENUM, int64_t, std::string>; |
| |
| // Convert std::string to char * |
| template <typename T> |
| auto ENUM_EXTRACT(const T& x) { |
| if constexpr (std::is_same_v<std::decay_t<T>, std::string>) { |
| return x.c_str(); |
| } else { |
| return x; |
| } |
| } |
| |
| // The status variable contains status_t codes which are used by |
| // the core audio framework. We also consider AAudio status codes. |
| // |
| // Compare with mediametrics::statusToStatusString |
| // |
| inline constexpr const char* extendedStatusToStatusString(status_t status) { |
| switch (status) { |
| case BAD_VALUE: // status_t |
| case AAUDIO_ERROR_ILLEGAL_ARGUMENT: |
| case AAUDIO_ERROR_INVALID_FORMAT: |
| case AAUDIO_ERROR_INVALID_RATE: |
| case AAUDIO_ERROR_NULL: |
| case AAUDIO_ERROR_OUT_OF_RANGE: |
| return AMEDIAMETRICS_PROP_STATUS_VALUE_ARGUMENT; |
| case DEAD_OBJECT: // status_t |
| case FAILED_TRANSACTION: // status_t |
| case AAUDIO_ERROR_DISCONNECTED: |
| case AAUDIO_ERROR_INVALID_HANDLE: |
| case AAUDIO_ERROR_NO_SERVICE: |
| return AMEDIAMETRICS_PROP_STATUS_VALUE_IO; |
| case NO_MEMORY: // status_t |
| case AAUDIO_ERROR_NO_FREE_HANDLES: |
| case AAUDIO_ERROR_NO_MEMORY: |
| return AMEDIAMETRICS_PROP_STATUS_VALUE_MEMORY; |
| case PERMISSION_DENIED: // status_t |
| return AMEDIAMETRICS_PROP_STATUS_VALUE_SECURITY; |
| case INVALID_OPERATION: // status_t |
| case NO_INIT: // status_t |
| case AAUDIO_ERROR_INVALID_STATE: |
| case AAUDIO_ERROR_UNAVAILABLE: |
| case AAUDIO_ERROR_UNIMPLEMENTED: |
| return AMEDIAMETRICS_PROP_STATUS_VALUE_STATE; |
| case WOULD_BLOCK: // status_t |
| case AAUDIO_ERROR_TIMEOUT: |
| case AAUDIO_ERROR_WOULD_BLOCK: |
| return AMEDIAMETRICS_PROP_STATUS_VALUE_TIMEOUT; |
| default: |
| if (status >= 0) return AMEDIAMETRICS_PROP_STATUS_VALUE_OK; // non-negative values "OK" |
| [[fallthrough]]; // negative values are error. |
| case UNKNOWN_ERROR: // status_t |
| return AMEDIAMETRICS_PROP_STATUS_VALUE_UNKNOWN; |
| } |
| } |
| |
| static constexpr const auto LOG_LEVEL = android::base::VERBOSE; |
| |
| static constexpr int PREVIOUS_STATE_EXPIRE_SEC = 60 * 60; // 1 hour. |
| |
| static constexpr const char * SUPPRESSED = "SUPPRESSED"; |
| |
| /* |
| * For logging purposes, we list all of the MediaMetrics atom fields, |
| * which can then be associated with consecutive arguments to the statsd write. |
| */ |
| |
| static constexpr const char * const AudioRecordDeviceUsageFields[] = { |
| "mediametrics_audiorecorddeviceusage_reported", // proto number |
| "devices", |
| "device_names", |
| "device_time_nanos", |
| "encoding", |
| "frame_count", |
| "interval_count", |
| "sample_rate", |
| "flags", |
| "package_name", |
| "selected_device_id", |
| "caller", |
| "source", |
| "log_session_id", |
| }; |
| |
| static constexpr const char * const AudioThreadDeviceUsageFields[] = { |
| "mediametrics_audiothreaddeviceusage_reported", |
| "devices", |
| "device_names", |
| "device_time_nanos", |
| "encoding", |
| "frame_count", |
| "interval_count", |
| "sample_rate", |
| "flags", |
| "xruns", |
| "type", |
| }; |
| |
| static constexpr const char * const AudioTrackDeviceUsageFields[] = { |
| "mediametrics_audiotrackdeviceusage_reported", |
| "devices", |
| "device_names", |
| "device_time_nanos", |
| "encoding", |
| "frame_count", |
| "interval_count", |
| "sample_rate", |
| "flags", |
| "xruns", |
| "package_name", |
| "device_latency_millis", |
| "device_startup_millis", |
| "device_volume", |
| "selected_device_id", |
| "stream_type", |
| "usage", |
| "content_type", |
| "caller", |
| "traits", |
| "log_session_id", |
| }; |
| |
| static constexpr const char * const AudioRecordStatusFields[] { |
| "mediametrics_audiorecordstatus_reported", |
| "status", |
| "debug_message", |
| "status_subcode", |
| "uid", |
| "event", |
| "input_flags", |
| "source", |
| "encoding", |
| "channel_mask", |
| "buffer_frame_count", |
| "sample_rate", |
| }; |
| |
| static constexpr const char * const AudioTrackStatusFields[] { |
| "mediametrics_audiotrackstatus_reported", |
| "status", |
| "debug_message", |
| "status_subcode", |
| "uid", |
| "event", |
| "output_flags", |
| "content_type", |
| "usage", |
| "encoding", |
| "channel_mask", |
| "buffer_frame_count", |
| "sample_rate", |
| "speed", |
| "pitch", |
| }; |
| |
| static constexpr const char * const AudioDeviceConnectionFields[] = { |
| "mediametrics_audiodeviceconnection_reported", |
| "input_devices", |
| "output_devices", |
| "device_names", |
| "result", |
| "time_to_connect_millis", |
| "connection_count", |
| }; |
| |
| static constexpr const char * const AAudioStreamFields[] { |
| "mediametrics_aaudiostream_reported", |
| "path", |
| "direction", |
| "frames_per_burst", |
| "buffer_size", |
| "buffer_capacity", |
| "channel_count", |
| "total_frames_transferred", |
| "perf_mode_requested", |
| "perf_mode_actual", |
| "sharing", |
| "xrun_count", |
| "device_type", |
| "format_app", |
| "format_device", |
| "log_session_id", |
| "sample_rate", |
| "content_type", |
| "sharing_requested", |
| }; |
| |
| /** |
| * printFields is a helper method that prints the fields and corresponding values |
| * in a human readable style. |
| */ |
| template <size_t N, typename ...Types> |
| std::string printFields(const char * const (& fields)[N], Types ... args) |
| { |
| std::stringstream ss; |
| ss << " { "; |
| stringutils::fieldPrint(ss, fields, args...); |
| ss << "}"; |
| return ss.str(); |
| } |
| |
| /** |
| * sendToStatsd is a helper method that sends the arguments to statsd |
| */ |
| template <typename ...Types> |
| int sendToStatsd(Types ... args) |
| { |
| int result = 0; |
| |
| #ifdef STATSD_ENABLE |
| result = android::util::stats_write(args...); |
| #endif |
| return result; |
| } |
| |
| /** |
| * sendToStatsd is a helper method that sends the arguments to statsd |
| * and returns a pair { result, summary_string }. |
| */ |
| template <size_t N, typename ...Types> |
| std::pair<int, std::string> sendToStatsd(const char * const (& fields)[N], Types ... args) |
| { |
| int result = 0; |
| std::stringstream ss; |
| |
| #ifdef STATSD_ENABLE |
| result = android::util::stats_write(args...); |
| ss << "result:" << result; |
| #endif |
| ss << " { "; |
| stringutils::fieldPrint(ss, fields, args...); |
| ss << "}"; |
| return { result, ss.str() }; |
| } |
| |
| AudioAnalytics::AudioAnalytics(const std::shared_ptr<StatsdLog>& statsdLog) |
| : mDeliverStatistics(property_get_bool(PROP_AUDIO_ANALYTICS_CLOUD_ENABLED, true)) |
| , mStatsdLog(statsdLog) |
| , mAudioPowerUsage(this, statsdLog) |
| { |
| SetMinimumLogSeverity(android::base::DEBUG); // for LOG(). |
| ALOGD("%s", __func__); |
| |
| // Add action to save AnalyticsState if audioserver is restarted. |
| // This triggers on AudioFlinger or AudioPolicy ctors and onFirstRef, |
| // as well as TimeCheck events. |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_AUDIO_FLINGER "." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_CTOR), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mHealth.onAudioServerStart(Health::Module::AUDIOFLINGER, item); |
| })); |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_AUDIO_POLICY "." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_CTOR), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mHealth.onAudioServerStart(Health::Module::AUDIOPOLICY, item); |
| })); |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_AUDIO_FLINGER "." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_TIMEOUT), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mHealth.onAudioServerTimeout(Health::Module::AUDIOFLINGER, item); |
| })); |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_AUDIO_POLICY "." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_TIMEOUT), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mHealth.onAudioServerTimeout(Health::Module::AUDIOPOLICY, item); |
| })); |
| |
| // Handle legacy aaudio playback stream statistics |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK "*." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAAUDIOSTREAM), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item) { |
| mAAudioStreamInfo.endAAudioStream(item, AAudioStreamInfo::CALLER_PATH_LEGACY); |
| })); |
| |
| // Handle legacy aaudio capture stream statistics |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_RECORD "*." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAAUDIOSTREAM), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item) { |
| mAAudioStreamInfo.endAAudioStream(item, AAudioStreamInfo::CALLER_PATH_LEGACY); |
| })); |
| |
| // Handle mmap aaudio stream statistics |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_STREAM "*." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAAUDIOSTREAM), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item) { |
| mAAudioStreamInfo.endAAudioStream(item, AAudioStreamInfo::CALLER_PATH_MMAP); |
| })); |
| |
| // Handle device use record statistics |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_RECORD "*." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAUDIOINTERVALGROUP), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mDeviceUse.endAudioIntervalGroup(item, DeviceUse::RECORD); |
| })); |
| |
| // Handle device use thread statistics |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_THREAD "*." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAUDIOINTERVALGROUP), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mDeviceUse.endAudioIntervalGroup(item, DeviceUse::THREAD); |
| })); |
| |
| // Handle device use track statistics |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK "*." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAUDIOINTERVALGROUP), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mDeviceUse.endAudioIntervalGroup(item, DeviceUse::TRACK); |
| })); |
| |
| |
| // Handle device connection statistics |
| |
| // We track connections (not disconnections) for the time to connect. |
| // TODO: consider BT requests in their A2dp service |
| // AudioManager.setBluetoothA2dpDeviceConnectionStateSuppressNoisyIntent |
| // AudioDeviceBroker.postBluetoothA2dpDeviceConnectionStateSuppressNoisyIntent |
| // AudioDeviceBroker.postA2dpActiveDeviceChange |
| mActions.addAction( |
| "audio.device.a2dp.state", |
| "connected", |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mDeviceConnection.a2dpConnected(item); |
| })); |
| // If audio is active, we expect to see a createAudioPatch after the device is connected. |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_THREAD "*." AMEDIAMETRICS_PROP_EVENT, |
| std::string("createAudioPatch"), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mDeviceConnection.createPatch(item); |
| })); |
| |
| // Called from BT service |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_DEVICE |
| "postBluetoothA2dpDeviceConnectionStateSuppressNoisyIntent" |
| "." AMEDIAMETRICS_PROP_STATE, |
| "connected", |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mDeviceConnection.postBluetoothA2dpDeviceConnectionStateSuppressNoisyIntent(item); |
| })); |
| |
| // Handle power usage |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK "*." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAUDIOINTERVALGROUP), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mAudioPowerUsage.checkTrackRecord(item, true /* isTrack */); |
| })); |
| |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_RECORD "*." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAUDIOINTERVALGROUP), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mAudioPowerUsage.checkTrackRecord(item, false /* isTrack */); |
| })); |
| |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_AUDIO_FLINGER "." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_SETMODE), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| // ALOGD("(key=%s) Audioflinger setMode", item->getKey().c_str()); |
| mAudioPowerUsage.checkMode(item); |
| })); |
| |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_AUDIO_FLINGER "." AMEDIAMETRICS_PROP_EVENT, |
| std::string(AMEDIAMETRICS_PROP_EVENT_VALUE_SETVOICEVOLUME), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| // ALOGD("(key=%s) Audioflinger setVoiceVolume", item->getKey().c_str()); |
| mAudioPowerUsage.checkVoiceVolume(item); |
| })); |
| |
| mActions.addAction( |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_THREAD "*." AMEDIAMETRICS_PROP_EVENT, |
| std::string("createAudioPatch"), |
| std::make_shared<AnalyticsActions::Function>( |
| [this](const std::shared_ptr<const android::mediametrics::Item> &item){ |
| mAudioPowerUsage.checkCreatePatch(item); |
| })); |
| } |
| |
| AudioAnalytics::~AudioAnalytics() |
| { |
| ALOGD("%s", __func__); |
| mTimedAction.quit(); // ensure no deferred access during destructor. |
| } |
| |
| status_t AudioAnalytics::submit( |
| const std::shared_ptr<const mediametrics::Item>& item, bool isTrusted) |
| { |
| if (!startsWith(item->getKey(), AMEDIAMETRICS_KEY_PREFIX_AUDIO)) return BAD_VALUE; |
| status_t status = mAnalyticsState->submit(item, isTrusted); |
| |
| // Status is selectively authenticated. |
| processStatus(item); |
| |
| if (status != NO_ERROR) return status; // may not be permitted. |
| |
| // Only if the item was successfully submitted (permission) |
| // do we check triggered actions. |
| processActions(item); |
| return NO_ERROR; |
| } |
| |
| std::pair<std::string, int32_t> AudioAnalytics::dump( |
| int32_t lines, int64_t sinceNs, const char *prefix) const |
| { |
| std::stringstream ss; |
| int32_t ll = lines; |
| |
| if (ll > 0) { |
| auto [s, l] = mAnalyticsState->dump(ll, sinceNs, prefix); |
| ss << s; |
| ll -= l; |
| } |
| if (ll > 0) { |
| ss << "Prior audioserver state:\n"; |
| --ll; |
| } |
| if (ll > 0) { |
| auto [s, l] = mPreviousAnalyticsState->dump(ll, sinceNs, prefix); |
| ss << s; |
| ll -= l; |
| } |
| |
| if (ll > 0 && prefix == nullptr) { |
| auto [s, l] = mAudioPowerUsage.dump(ll); |
| ss << s; |
| ll -= l; |
| } |
| |
| return { ss.str(), lines - ll }; |
| } |
| |
| void AudioAnalytics::processActions(const std::shared_ptr<const mediametrics::Item>& item) |
| { |
| auto actions = mActions.getActionsForItem(item); // internally locked. |
| // Execute actions with no lock held. |
| for (const auto& action : actions) { |
| (*action)(item); |
| } |
| } |
| |
| void AudioAnalytics::processStatus(const std::shared_ptr<const mediametrics::Item>& item) |
| { |
| int32_t status; |
| if (!item->get(AMEDIAMETRICS_PROP_STATUS, &status)) return; |
| |
| // Any record with a status will automatically be added to a heat map. |
| // Standard information. |
| const auto key = item->getKey(); |
| const auto uid = item->getUid(); |
| |
| // from audio.track.10 -> prefix = audio.track, suffix = 10 |
| // from audio.track.error -> prefix = audio.track, suffix = error |
| const auto [prefixKey, suffixKey] = stringutils::splitPrefixKey(key); |
| |
| std::string message; |
| item->get(AMEDIAMETRICS_PROP_STATUSMESSAGE, &message); // optional |
| |
| int32_t subCode = 0; // not used |
| (void)item->get(AMEDIAMETRICS_PROP_STATUSSUBCODE, &subCode); // optional |
| |
| std::string eventStr; // optional |
| item->get(AMEDIAMETRICS_PROP_EVENT, &eventStr); |
| |
| const std::string statusString = extendedStatusToStatusString(status); |
| |
| // Add to the heat map - we automatically track every item's status to see |
| // the types of errors and the frequency of errors. |
| mHeatMap.add(prefixKey, suffixKey, eventStr, statusString, uid, message, subCode); |
| |
| // Certain keys/event pairs are sent to statsd. If we get a match (true) we return early. |
| if (reportAudioRecordStatus(item, key, eventStr, statusString, uid, message, subCode)) return; |
| if (reportAudioTrackStatus(item, key, eventStr, statusString, uid, message, subCode)) return; |
| } |
| |
| bool AudioAnalytics::reportAudioRecordStatus( |
| const std::shared_ptr<const mediametrics::Item>& item, |
| const std::string& key, const std::string& eventStr, |
| const std::string& statusString, uid_t uid, const std::string& message, |
| int32_t subCode) const |
| { |
| // Note that the prefixes often end with a '.' so we use startsWith. |
| if (!startsWith(key, AMEDIAMETRICS_KEY_PREFIX_AUDIO_RECORD)) return false; |
| if (eventStr == AMEDIAMETRICS_PROP_EVENT_VALUE_CREATE) { |
| const int atom_status = types::lookup<types::STATUS, int32_t>(statusString); |
| |
| // currently we only send create status events. |
| const int32_t event = android::util:: |
| MEDIAMETRICS_AUDIO_RECORD_STATUS_REPORTED__EVENT__AUDIO_RECORD_EVENT_CREATE; |
| |
| // The following fields should all be present in a create event. |
| std::string flagsStr; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_ORIGINALFLAGS, &flagsStr), |
| "%s: %s missing %s field", __func__, |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_RECORD, AMEDIAMETRICS_PROP_ORIGINALFLAGS); |
| const auto flags = types::lookup<types::INPUT_FLAG, int32_t>(flagsStr); |
| |
| // AMEDIAMETRICS_PROP_SESSIONID omitted from atom |
| |
| std::string sourceStr; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_SOURCE, &sourceStr), |
| "%s: %s missing %s field", |
| __func__, AMEDIAMETRICS_KEY_PREFIX_AUDIO_RECORD, AMEDIAMETRICS_PROP_SOURCE); |
| const int32_t source = types::lookup<types::SOURCE_TYPE, int32_t>(sourceStr); |
| |
| // AMEDIAMETRICS_PROP_SELECTEDDEVICEID omitted from atom |
| |
| std::string encodingStr; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_ENCODING, &encodingStr), |
| "%s: %s missing %s field", |
| __func__, AMEDIAMETRICS_KEY_PREFIX_AUDIO_RECORD, AMEDIAMETRICS_PROP_ENCODING); |
| const auto encoding = types::lookup<types::ENCODING, int32_t>(encodingStr); |
| |
| int32_t channelMask = 0; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_CHANNELMASK, &channelMask), |
| "%s: %s missing %s field", |
| __func__, AMEDIAMETRICS_KEY_PREFIX_AUDIO_RECORD, AMEDIAMETRICS_PROP_CHANNELMASK); |
| int32_t frameCount = 0; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_FRAMECOUNT, &frameCount), |
| "%s: %s missing %s field", |
| __func__, AMEDIAMETRICS_KEY_PREFIX_AUDIO_RECORD, AMEDIAMETRICS_PROP_FRAMECOUNT); |
| int32_t sampleRate = 0; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_SAMPLERATE, &sampleRate), |
| "%s: %s missing %s field", |
| __func__, AMEDIAMETRICS_KEY_PREFIX_AUDIO_RECORD, AMEDIAMETRICS_PROP_SAMPLERATE); |
| |
| const auto [ result, str ] = sendToStatsd(AudioRecordStatusFields, |
| CONDITION(android::util::MEDIAMETRICS_AUDIORECORDSTATUS_REPORTED) |
| , atom_status |
| , message.c_str() |
| , subCode |
| , uid |
| , event |
| , flags |
| , source |
| , encoding |
| , (int64_t)channelMask |
| , frameCount |
| , sampleRate |
| ); |
| ALOGV("%s: statsd %s", __func__, str.c_str()); |
| mStatsdLog->log(android::util::MEDIAMETRICS_AUDIORECORDSTATUS_REPORTED, str); |
| return true; |
| } |
| return false; |
| } |
| |
| bool AudioAnalytics::reportAudioTrackStatus( |
| const std::shared_ptr<const mediametrics::Item>& item, |
| const std::string& key, const std::string& eventStr, |
| const std::string& statusString, uid_t uid, const std::string& message, |
| int32_t subCode) const |
| { |
| // Note that the prefixes often end with a '.' so we use startsWith. |
| if (!startsWith(key, AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK)) return false; |
| if (eventStr == AMEDIAMETRICS_PROP_EVENT_VALUE_CREATE) { |
| const int atom_status = types::lookup<types::STATUS, int32_t>(statusString); |
| |
| // currently we only send create status events. |
| const int32_t event = android::util:: |
| MEDIAMETRICS_AUDIO_TRACK_STATUS_REPORTED__EVENT__AUDIO_TRACK_EVENT_CREATE; |
| |
| // The following fields should all be present in a create event. |
| std::string flagsStr; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_ORIGINALFLAGS, &flagsStr), |
| "%s: %s missing %s field", |
| __func__, AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK, AMEDIAMETRICS_PROP_ORIGINALFLAGS); |
| const auto flags = types::lookup<types::OUTPUT_FLAG, int32_t>(flagsStr); |
| |
| // AMEDIAMETRICS_PROP_SESSIONID omitted from atom |
| |
| std::string contentTypeStr; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_CONTENTTYPE, &contentTypeStr), |
| "%s: %s missing %s field", |
| __func__, AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK, AMEDIAMETRICS_PROP_CONTENTTYPE); |
| const auto contentType = types::lookup<types::CONTENT_TYPE, int32_t>(contentTypeStr); |
| |
| std::string usageStr; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_USAGE, &usageStr), |
| "%s: %s missing %s field", |
| __func__, AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK, AMEDIAMETRICS_PROP_USAGE); |
| const auto usage = types::lookup<types::USAGE, int32_t>(usageStr); |
| |
| // AMEDIAMETRICS_PROP_SELECTEDDEVICEID omitted from atom |
| |
| std::string encodingStr; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_ENCODING, &encodingStr), |
| "%s: %s missing %s field", |
| __func__, AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK, AMEDIAMETRICS_PROP_ENCODING); |
| const auto encoding = types::lookup<types::ENCODING, int32_t>(encodingStr); |
| |
| int32_t channelMask = 0; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_CHANNELMASK, &channelMask), |
| "%s: %s missing %s field", |
| __func__, AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK, AMEDIAMETRICS_PROP_CHANNELMASK); |
| int32_t frameCount = 0; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_FRAMECOUNT, &frameCount), |
| "%s: %s missing %s field", |
| __func__, AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK, AMEDIAMETRICS_PROP_FRAMECOUNT); |
| int32_t sampleRate = 0; |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_SAMPLERATE, &sampleRate), |
| "%s: %s missing %s field", |
| __func__, AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK, AMEDIAMETRICS_PROP_SAMPLERATE); |
| double speed = 0.f; // default is 1.f |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_PLAYBACK_SPEED, &speed), |
| "%s: %s missing %s field", |
| __func__, |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK, AMEDIAMETRICS_PROP_PLAYBACK_SPEED); |
| double pitch = 0.f; // default is 1.f |
| ALOGD_IF(!item->get(AMEDIAMETRICS_PROP_PLAYBACK_PITCH, &pitch), |
| "%s: %s missing %s field", |
| __func__, |
| AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK, AMEDIAMETRICS_PROP_PLAYBACK_PITCH); |
| const auto [ result, str ] = sendToStatsd(AudioTrackStatusFields, |
| CONDITION(android::util::MEDIAMETRICS_AUDIOTRACKSTATUS_REPORTED) |
| , atom_status |
| , message.c_str() |
| , subCode |
| , uid |
| , event |
| , flags |
| , contentType |
| , usage |
| , encoding |
| , (int64_t)channelMask |
| , frameCount |
| , sampleRate |
| , (float)speed |
| , (float)pitch |
| ); |
| ALOGV("%s: statsd %s", __func__, str.c_str()); |
| mStatsdLog->log(android::util::MEDIAMETRICS_AUDIOTRACKSTATUS_REPORTED, str); |
| return true; |
| } |
| return false; |
| } |
| |
| // HELPER METHODS |
| |
| std::string AudioAnalytics::getThreadFromTrack(const std::string& track) const |
| { |
| int32_t threadId_int32{}; |
| if (mAnalyticsState->timeMachine().get( |
| track, AMEDIAMETRICS_PROP_THREADID, &threadId_int32) != NO_ERROR) { |
| return {}; |
| } |
| return std::string(AMEDIAMETRICS_KEY_PREFIX_AUDIO_THREAD) + std::to_string(threadId_int32); |
| } |
| |
| // DeviceUse helper class. |
| void AudioAnalytics::DeviceUse::endAudioIntervalGroup( |
| const std::shared_ptr<const android::mediametrics::Item> &item, ItemType itemType) const { |
| const std::string& key = item->getKey(); |
| const std::string id = key.substr( |
| (itemType == THREAD ? sizeof(AMEDIAMETRICS_KEY_PREFIX_AUDIO_THREAD) |
| : itemType == TRACK ? sizeof(AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK) |
| : sizeof(AMEDIAMETRICS_KEY_PREFIX_AUDIO_RECORD)) |
| - 1); |
| // deliver statistics |
| int64_t deviceTimeNs = 0; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_DEVICETIMENS, &deviceTimeNs); |
| std::string encoding; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_ENCODING, &encoding); |
| int32_t frameCount = 0; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_FRAMECOUNT, &frameCount); |
| std::string inputDevicePairs; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_INPUTDEVICES, &inputDevicePairs); |
| int32_t intervalCount = 0; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_INTERVALCOUNT, &intervalCount); |
| std::string outputDevicePairs; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_OUTPUTDEVICES, &outputDevicePairs); |
| int32_t sampleRate = 0; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_SAMPLERATE, &sampleRate); |
| std::string flags; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_FLAGS, &flags); |
| |
| // We may have several devices. |
| // Accumulate the bit flags for input and output devices. |
| std::stringstream oss; |
| long_enum_type_t outputDeviceBits{}; |
| { // compute outputDevices |
| const auto devaddrvec = stringutils::getDeviceAddressPairs(outputDevicePairs); |
| for (const auto& [device, addr] : devaddrvec) { |
| if (oss.tellp() > 0) oss << "|"; // delimit devices with '|'. |
| oss << device; |
| outputDeviceBits += types::lookup<types::OUTPUT_DEVICE, long_enum_type_t>(device); |
| } |
| } |
| const std::string outputDevices = oss.str(); |
| |
| std::stringstream iss; |
| long_enum_type_t inputDeviceBits{}; |
| { // compute inputDevices |
| const auto devaddrvec = stringutils::getDeviceAddressPairs(inputDevicePairs); |
| for (const auto& [device, addr] : devaddrvec) { |
| if (iss.tellp() > 0) iss << "|"; // delimit devices with '|'. |
| iss << device; |
| inputDeviceBits += types::lookup<types::INPUT_DEVICE, long_enum_type_t>(device); |
| } |
| } |
| const std::string inputDevices = iss.str(); |
| |
| // Get connected device name if from bluetooth. |
| bool isBluetooth = false; |
| |
| std::string inputDeviceNames; // not filled currently. |
| std::string outputDeviceNames; |
| if (outputDevices.find("AUDIO_DEVICE_OUT_BLUETOOTH") != std::string::npos) { |
| isBluetooth = true; |
| outputDeviceNames = SUPPRESSED; |
| #if 0 // TODO(b/161554630) sanitize name |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| "audio.device.bt_a2dp", AMEDIAMETRICS_PROP_NAME, &outputDeviceNames); |
| // Remove | if present |
| stringutils::replace(outputDeviceNames, "|", '?'); |
| if (outputDeviceNames.size() > STATSD_DEVICE_NAME_MAX_LENGTH) { |
| outputDeviceNames.resize(STATSD_DEVICE_NAME_MAX_LENGTH); // truncate |
| } |
| #endif |
| } |
| |
| switch (itemType) { |
| case RECORD: { |
| std::string callerName; |
| const bool clientCalled = mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_CALLERNAME, &callerName) == OK; |
| |
| std::string packageName; |
| int64_t versionCode = 0; |
| int32_t uid = -1; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_ALLOWUID, &uid); |
| if (uid != -1) { |
| std::tie(packageName, versionCode) = |
| MediaMetricsService::getSanitizedPackageNameAndVersionCode(uid); |
| } |
| |
| int32_t selectedDeviceId = 0; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_SELECTEDDEVICEID, &selectedDeviceId); |
| std::string source; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_SOURCE, &source); |
| // Android S |
| std::string logSessionId; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_LOGSESSIONID, &logSessionId); |
| |
| const auto callerNameForStats = |
| types::lookup<types::CALLER_NAME, short_enum_type_t>(callerName); |
| const auto encodingForStats = types::lookup<types::ENCODING, short_enum_type_t>(encoding); |
| const auto flagsForStats = types::lookup<types::INPUT_FLAG, short_enum_type_t>(flags); |
| const auto sourceForStats = types::lookup<types::SOURCE_TYPE, short_enum_type_t>(source); |
| // Android S |
| const auto logSessionIdForStats = ValidateId::get()->validateId(logSessionId); |
| |
| LOG(LOG_LEVEL) << "key:" << key |
| << " id:" << id |
| << " inputDevices:" << inputDevices << "(" << inputDeviceBits |
| << ") inputDeviceNames:" << inputDeviceNames |
| << " deviceTimeNs:" << deviceTimeNs |
| << " encoding:" << encoding << "(" << encodingForStats |
| << ") frameCount:" << frameCount |
| << " intervalCount:" << intervalCount |
| << " sampleRate:" << sampleRate |
| << " flags:" << flags << "(" << flagsForStats |
| << ") packageName:" << packageName |
| << " selectedDeviceId:" << selectedDeviceId |
| << " callerName:" << callerName << "(" << callerNameForStats |
| << ") source:" << source << "(" << sourceForStats |
| << ") logSessionId:" << logSessionId << "(" << logSessionIdForStats |
| << ")"; |
| if (clientCalled // only log if client app called AudioRecord. |
| && mAudioAnalytics.mDeliverStatistics) { |
| const auto [ result, str ] = sendToStatsd(AudioRecordDeviceUsageFields, |
| CONDITION(android::util::MEDIAMETRICS_AUDIORECORDDEVICEUSAGE_REPORTED) |
| , ENUM_EXTRACT(inputDeviceBits) |
| , inputDeviceNames.c_str() |
| , deviceTimeNs |
| , ENUM_EXTRACT(encodingForStats) |
| , frameCount |
| , intervalCount |
| , sampleRate |
| , ENUM_EXTRACT(flagsForStats) |
| |
| , packageName.c_str() |
| , selectedDeviceId |
| , ENUM_EXTRACT(callerNameForStats) |
| , ENUM_EXTRACT(sourceForStats) |
| , logSessionIdForStats.c_str() |
| ); |
| ALOGV("%s: statsd %s", __func__, str.c_str()); |
| mAudioAnalytics.mStatsdLog->log( |
| android::util::MEDIAMETRICS_AUDIORECORDDEVICEUSAGE_REPORTED, str); |
| } |
| } break; |
| case THREAD: { |
| std::string type; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_TYPE, &type); |
| int32_t underrun = 0; // zero for record types |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_UNDERRUN, &underrun); |
| |
| const bool isInput = types::isInputThreadType(type); |
| const auto encodingForStats = types::lookup<types::ENCODING, short_enum_type_t>(encoding); |
| const auto flagsForStats = |
| (isInput ? types::lookup<types::INPUT_FLAG, short_enum_type_t>(flags) |
| : types::lookup<types::OUTPUT_FLAG, short_enum_type_t>(flags)); |
| const auto typeForStats = types::lookup<types::THREAD_TYPE, short_enum_type_t>(type); |
| |
| LOG(LOG_LEVEL) << "key:" << key |
| << " id:" << id |
| << " inputDevices:" << inputDevices << "(" << inputDeviceBits |
| << ") outputDevices:" << outputDevices << "(" << outputDeviceBits |
| << ") inputDeviceNames:" << inputDeviceNames |
| << " outputDeviceNames:" << outputDeviceNames |
| << " deviceTimeNs:" << deviceTimeNs |
| << " encoding:" << encoding << "(" << encodingForStats |
| << ") frameCount:" << frameCount |
| << " intervalCount:" << intervalCount |
| << " sampleRate:" << sampleRate |
| << " underrun:" << underrun |
| << " flags:" << flags << "(" << flagsForStats |
| << ") type:" << type << "(" << typeForStats |
| << ")"; |
| if (mAudioAnalytics.mDeliverStatistics) { |
| const auto [ result, str ] = sendToStatsd(AudioThreadDeviceUsageFields, |
| CONDITION(android::util::MEDIAMETRICS_AUDIOTHREADDEVICEUSAGE_REPORTED) |
| , isInput ? ENUM_EXTRACT(inputDeviceBits) : ENUM_EXTRACT(outputDeviceBits) |
| , isInput ? inputDeviceNames.c_str() : outputDeviceNames.c_str() |
| , deviceTimeNs |
| , ENUM_EXTRACT(encodingForStats) |
| , frameCount |
| , intervalCount |
| , sampleRate |
| , ENUM_EXTRACT(flagsForStats) |
| , underrun |
| , ENUM_EXTRACT(typeForStats) |
| ); |
| ALOGV("%s: statsd %s", __func__, str.c_str()); |
| mAudioAnalytics.mStatsdLog->log( |
| android::util::MEDIAMETRICS_AUDIOTHREADDEVICEUSAGE_REPORTED, str); |
| } |
| } break; |
| case TRACK: { |
| std::string callerName; |
| const bool clientCalled = mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_CALLERNAME, &callerName) == OK; |
| |
| std::string contentType; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_CONTENTTYPE, &contentType); |
| double deviceLatencyMs = 0.; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_DEVICELATENCYMS, &deviceLatencyMs); |
| double deviceStartupMs = 0.; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_DEVICESTARTUPMS, &deviceStartupMs); |
| double deviceVolume = 0.; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_DEVICEVOLUME, &deviceVolume); |
| std::string packageName; |
| int64_t versionCode = 0; |
| int32_t uid = -1; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_ALLOWUID, &uid); |
| if (uid != -1) { |
| std::tie(packageName, versionCode) = |
| MediaMetricsService::getSanitizedPackageNameAndVersionCode(uid); |
| } |
| double playbackPitch = 0.; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_PLAYBACK_PITCH, &playbackPitch); |
| double playbackSpeed = 0.; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_PLAYBACK_SPEED, &playbackSpeed); |
| int32_t selectedDeviceId = 0; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_SELECTEDDEVICEID, &selectedDeviceId); |
| std::string streamType; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_STREAMTYPE, &streamType); |
| std::string traits; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_TRAITS, &traits); |
| int32_t underrun = 0; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_UNDERRUN, &underrun); |
| std::string usage; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_USAGE, &usage); |
| // Android S |
| std::string logSessionId; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_LOGSESSIONID, &logSessionId); |
| |
| const auto callerNameForStats = |
| types::lookup<types::CALLER_NAME, short_enum_type_t>(callerName); |
| const auto contentTypeForStats = |
| types::lookup<types::CONTENT_TYPE, short_enum_type_t>(contentType); |
| const auto encodingForStats = types::lookup<types::ENCODING, short_enum_type_t>(encoding); |
| const auto flagsForStats = types::lookup<types::OUTPUT_FLAG, short_enum_type_t>(flags); |
| const auto streamTypeForStats = |
| types::lookup<types::STREAM_TYPE, short_enum_type_t>(streamType); |
| const auto traitsForStats = |
| types::lookup<types::TRACK_TRAITS, short_enum_type_t>(traits); |
| const auto usageForStats = types::lookup<types::USAGE, short_enum_type_t>(usage); |
| // Android S |
| const auto logSessionIdForStats = ValidateId::get()->validateId(logSessionId); |
| |
| LOG(LOG_LEVEL) << "key:" << key |
| << " id:" << id |
| << " outputDevices:" << outputDevices << "(" << outputDeviceBits |
| << ") outputDeviceNames:" << outputDeviceNames |
| << " deviceTimeNs:" << deviceTimeNs |
| << " encoding:" << encoding << "(" << encodingForStats |
| << ") frameCount:" << frameCount |
| << " intervalCount:" << intervalCount |
| << " sampleRate:" << sampleRate |
| << " underrun:" << underrun |
| << " flags:" << flags << "(" << flagsForStats |
| << ") callerName:" << callerName << "(" << callerNameForStats |
| << ") contentType:" << contentType << "(" << contentTypeForStats |
| << ") deviceLatencyMs:" << deviceLatencyMs |
| << " deviceStartupMs:" << deviceStartupMs |
| << " deviceVolume:" << deviceVolume |
| << " packageName:" << packageName |
| << " playbackPitch:" << playbackPitch |
| << " playbackSpeed:" << playbackSpeed |
| << " selectedDeviceId:" << selectedDeviceId |
| << " streamType:" << streamType << "(" << streamTypeForStats |
| << ") traits:" << traits << "(" << traitsForStats |
| << ") usage:" << usage << "(" << usageForStats |
| << ") logSessionId:" << logSessionId << "(" << logSessionIdForStats |
| << ")"; |
| if (clientCalled // only log if client app called AudioTracks |
| && mAudioAnalytics.mDeliverStatistics) { |
| const auto [ result, str ] = sendToStatsd(AudioTrackDeviceUsageFields, |
| CONDITION(android::util::MEDIAMETRICS_AUDIOTRACKDEVICEUSAGE_REPORTED) |
| , ENUM_EXTRACT(outputDeviceBits) |
| , outputDeviceNames.c_str() |
| , deviceTimeNs |
| , ENUM_EXTRACT(encodingForStats) |
| , frameCount |
| , intervalCount |
| , sampleRate |
| , ENUM_EXTRACT(flagsForStats) |
| , underrun |
| , packageName.c_str() |
| , (float)deviceLatencyMs |
| , (float)deviceStartupMs |
| , (float)deviceVolume |
| , selectedDeviceId |
| , ENUM_EXTRACT(streamTypeForStats) |
| , ENUM_EXTRACT(usageForStats) |
| , ENUM_EXTRACT(contentTypeForStats) |
| , ENUM_EXTRACT(callerNameForStats) |
| , ENUM_EXTRACT(traitsForStats) |
| , logSessionIdForStats.c_str() |
| ); |
| ALOGV("%s: statsd %s", __func__, str.c_str()); |
| mAudioAnalytics.mStatsdLog->log( |
| android::util::MEDIAMETRICS_AUDIOTRACKDEVICEUSAGE_REPORTED, str); |
| } |
| } break; |
| } |
| |
| // Report this as needed. |
| if (isBluetooth) { |
| // report this for Bluetooth |
| } |
| } |
| |
| // DeviceConnection helper class. |
| void AudioAnalytics::DeviceConnection::a2dpConnected( |
| const std::shared_ptr<const android::mediametrics::Item> &item) { |
| const std::string& key = item->getKey(); |
| const int64_t atNs = item->getTimestamp(); |
| { |
| std::lock_guard l(mLock); |
| mA2dpConnectionServiceNs = atNs; |
| ++mA2dpConnectionServices; |
| |
| if (mA2dpConnectionRequestNs == 0) { |
| mAudioAnalytics.mTimedAction.postIn(std::chrono::seconds(5), [this](){ expire(); }); |
| } |
| // This sets the time we were connected. Now we look for the delta in the future. |
| } |
| std::string name; |
| item->get(AMEDIAMETRICS_PROP_NAME, &name); |
| ALOGD("(key=%s) a2dp connected device:%s atNs:%lld", |
| key.c_str(), name.c_str(), (long long)atNs); |
| } |
| |
| void AudioAnalytics::DeviceConnection::createPatch( |
| const std::shared_ptr<const android::mediametrics::Item> &item) { |
| std::lock_guard l(mLock); |
| if (mA2dpConnectionServiceNs == 0) return; // patch unrelated to us. |
| const std::string& key = item->getKey(); |
| std::string outputDevices; |
| item->get(AMEDIAMETRICS_PROP_OUTPUTDEVICES, &outputDevices); |
| if (outputDevices.find("AUDIO_DEVICE_OUT_BLUETOOTH_A2DP") != std::string::npos) { |
| // TODO compare address |
| int64_t timeDiffNs = item->getTimestamp(); |
| if (mA2dpConnectionRequestNs == 0) { |
| ALOGD("%s: A2DP create patch didn't see a connection request", __func__); |
| timeDiffNs -= mA2dpConnectionServiceNs; |
| } else { |
| timeDiffNs -= mA2dpConnectionRequestNs; |
| } |
| |
| mA2dpConnectionRequestNs = 0; |
| mA2dpConnectionServiceNs = 0; |
| ++mA2dpConnectionSuccesses; |
| |
| const auto connectionTimeMs = float((double)timeDiffNs * 1e-6); |
| |
| const auto outputDeviceBits = types::lookup<types::OUTPUT_DEVICE, long_enum_type_t>( |
| "AUDIO_DEVICE_OUT_BLUETOOTH_A2DP"); |
| |
| LOG(LOG_LEVEL) << "key:" << key |
| << " A2DP SUCCESS" |
| << " outputDevices:" << outputDeviceBits |
| << " deviceName:" << mA2dpDeviceName |
| << " connectionTimeMs:" << connectionTimeMs; |
| if (mAudioAnalytics.mDeliverStatistics) { |
| const long_enum_type_t inputDeviceBits{}; |
| |
| const auto [ result, str ] = sendToStatsd(AudioDeviceConnectionFields, |
| CONDITION(android::util::MEDIAMETRICS_AUDIODEVICECONNECTION_REPORTED) |
| , ENUM_EXTRACT(inputDeviceBits) |
| , ENUM_EXTRACT(outputDeviceBits) |
| , mA2dpDeviceName.c_str() |
| , types::DEVICE_CONNECTION_RESULT_SUCCESS |
| , connectionTimeMs |
| , /* connection_count */ 1 |
| ); |
| ALOGV("%s: statsd %s", __func__, str.c_str()); |
| mAudioAnalytics.mStatsdLog->log( |
| android::util::MEDIAMETRICS_AUDIODEVICECONNECTION_REPORTED, str); |
| } |
| } |
| } |
| |
| // Called through AudioManager when the BT service wants to enable |
| void AudioAnalytics::DeviceConnection::postBluetoothA2dpDeviceConnectionStateSuppressNoisyIntent( |
| const std::shared_ptr<const android::mediametrics::Item> &item) { |
| const int64_t atNs = item->getTimestamp(); |
| const std::string& key = item->getKey(); |
| std::string state; |
| item->get(AMEDIAMETRICS_PROP_STATE, &state); |
| if (state != "connected") return; |
| |
| std::string name; |
| item->get(AMEDIAMETRICS_PROP_NAME, &name); |
| { |
| std::lock_guard l(mLock); |
| mA2dpConnectionRequestNs = atNs; |
| ++mA2dpConnectionRequests; |
| mA2dpDeviceName = SUPPRESSED; // TODO(b/161554630) sanitize name |
| } |
| ALOGD("(key=%s) a2dp connection name:%s request atNs:%lld", |
| key.c_str(), name.c_str(), (long long)atNs); |
| // TODO: attempt to cancel a timed event, rather than let it expire. |
| mAudioAnalytics.mTimedAction.postIn(std::chrono::seconds(5), [this](){ expire(); }); |
| } |
| |
| void AudioAnalytics::DeviceConnection::expire() { |
| std::lock_guard l(mLock); |
| if (mA2dpConnectionRequestNs == 0) return; // ignore (this was an internal connection). |
| |
| const long_enum_type_t inputDeviceBits{}; |
| const auto outputDeviceBits = types::lookup<types::OUTPUT_DEVICE, long_enum_type_t>( |
| "AUDIO_DEVICE_OUT_BLUETOOTH_A2DP"); |
| |
| if (mA2dpConnectionServiceNs == 0) { |
| ++mA2dpConnectionJavaServiceCancels; // service did not connect to A2DP |
| |
| LOG(LOG_LEVEL) << "A2DP CANCEL" |
| << " outputDevices:" << outputDeviceBits |
| << " deviceName:" << mA2dpDeviceName; |
| if (mAudioAnalytics.mDeliverStatistics) { |
| const auto [ result, str ] = sendToStatsd(AudioDeviceConnectionFields, |
| CONDITION(android::util::MEDIAMETRICS_AUDIODEVICECONNECTION_REPORTED) |
| , ENUM_EXTRACT(inputDeviceBits) |
| , ENUM_EXTRACT(outputDeviceBits) |
| , mA2dpDeviceName.c_str() |
| , types::DEVICE_CONNECTION_RESULT_JAVA_SERVICE_CANCEL |
| , /* connection_time_ms */ 0.f |
| , /* connection_count */ 1 |
| ); |
| ALOGV("%s: statsd %s", __func__, str.c_str()); |
| mAudioAnalytics.mStatsdLog->log( |
| android::util::MEDIAMETRICS_AUDIODEVICECONNECTION_REPORTED, str); |
| } |
| return; |
| } |
| |
| // AudioFlinger didn't play - an expiration may occur because there is no audio playing. |
| // Should we check elsewhere? |
| // TODO: disambiguate this case. |
| mA2dpConnectionRequestNs = 0; |
| mA2dpConnectionServiceNs = 0; |
| ++mA2dpConnectionUnknowns; // connection result unknown |
| |
| LOG(LOG_LEVEL) << "A2DP UNKNOWN" |
| << " outputDevices:" << outputDeviceBits |
| << " deviceName:" << mA2dpDeviceName; |
| if (mAudioAnalytics.mDeliverStatistics) { |
| const auto [ result, str ] = sendToStatsd(AudioDeviceConnectionFields, |
| CONDITION(android::util::MEDIAMETRICS_AUDIODEVICECONNECTION_REPORTED) |
| , ENUM_EXTRACT(inputDeviceBits) |
| , ENUM_EXTRACT(outputDeviceBits) |
| , mA2dpDeviceName.c_str() |
| , types::DEVICE_CONNECTION_RESULT_UNKNOWN |
| , /* connection_time_ms */ 0.f |
| , /* connection_count */ 1 |
| ); |
| ALOGV("%s: statsd %s", __func__, str.c_str()); |
| mAudioAnalytics.mStatsdLog->log( |
| android::util::MEDIAMETRICS_AUDIODEVICECONNECTION_REPORTED, str); |
| } |
| } |
| |
| void AudioAnalytics::AAudioStreamInfo::endAAudioStream( |
| const std::shared_ptr<const android::mediametrics::Item> &item, CallerPath path) const { |
| const std::string& key = item->getKey(); |
| |
| std::string directionStr; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_DIRECTION, &directionStr); |
| const auto direction = types::lookup<types::AAUDIO_DIRECTION, int32_t>(directionStr); |
| |
| int32_t framesPerBurst = -1; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_BURSTFRAMES, &framesPerBurst); |
| |
| int32_t bufferSizeInFrames = -1; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_BUFFERSIZEFRAMES, &bufferSizeInFrames); |
| |
| int32_t bufferCapacityInFrames = -1; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_BUFFERCAPACITYFRAMES, &bufferCapacityInFrames); |
| |
| int32_t channelCount = -1; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_CHANNELCOUNT, &channelCount); |
| if (channelCount == -1) { |
| // Try to get channel count from channel mask. From the legacy path, |
| // only channel mask are logged. |
| int32_t channelMask = 0; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_CHANNELMASK, &channelMask); |
| if (channelMask != 0) { |
| switch (direction) { |
| case 1: // Output, keep sync with AudioTypes#getAAudioDirection() |
| channelCount = (int32_t)audio_channel_count_from_out_mask(channelMask); |
| break; |
| case 2: // Input, keep sync with AudioTypes#getAAudioDirection() |
| channelCount = (int32_t)audio_channel_count_from_in_mask(channelMask); |
| break; |
| default: |
| ALOGW("Invalid direction %d", direction); |
| } |
| } |
| } |
| |
| int64_t totalFramesTransferred = -1; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_FRAMESTRANSFERRED, &totalFramesTransferred); |
| |
| std::string perfModeRequestedStr; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_PERFORMANCEMODE, &perfModeRequestedStr); |
| const auto perfModeRequested = |
| types::lookup<types::AAUDIO_PERFORMANCE_MODE, int32_t>(perfModeRequestedStr); |
| |
| std::string perfModeActualStr; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_PERFORMANCEMODEACTUAL, &perfModeActualStr); |
| const auto perfModeActual = |
| types::lookup<types::AAUDIO_PERFORMANCE_MODE, int32_t>(perfModeActualStr); |
| |
| std::string sharingModeActualStr; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_SHARINGMODEACTUAL, &sharingModeActualStr); |
| const auto sharingModeActual = |
| types::lookup<types::AAUDIO_SHARING_MODE, int32_t>(sharingModeActualStr); |
| |
| int32_t xrunCount = -1; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_UNDERRUN, &xrunCount); |
| |
| std::string serializedDeviceTypes; |
| // TODO: only routed device id is logged, but no device type |
| |
| std::string formatAppStr; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_ENCODINGCLIENT, &formatAppStr); |
| const auto formatApp = types::lookup<types::ENCODING, int32_t>(formatAppStr); |
| |
| std::string formatDeviceStr; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_ENCODING, &formatDeviceStr); |
| const auto formatDevice = types::lookup<types::ENCODING, int32_t>(formatDeviceStr); |
| |
| std::string logSessionId; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_LOGSESSIONID, &logSessionId); |
| |
| int32_t sampleRate = 0; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_SAMPLERATE, &sampleRate); |
| |
| std::string contentTypeStr; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_CONTENTTYPE, &contentTypeStr); |
| const auto contentType = types::lookup<types::CONTENT_TYPE, int32_t>(contentTypeStr); |
| |
| std::string sharingModeRequestedStr; |
| mAudioAnalytics.mAnalyticsState->timeMachine().get( |
| key, AMEDIAMETRICS_PROP_SHARINGMODE, &sharingModeRequestedStr); |
| const auto sharingModeRequested = |
| types::lookup<types::AAUDIO_SHARING_MODE, int32_t>(sharingModeRequestedStr); |
| |
| LOG(LOG_LEVEL) << "key:" << key |
| << " path:" << path |
| << " direction:" << direction << "(" << directionStr << ")" |
| << " frames_per_burst:" << framesPerBurst |
| << " buffer_size:" << bufferSizeInFrames |
| << " buffer_capacity:" << bufferCapacityInFrames |
| << " channel_count:" << channelCount |
| << " total_frames_transferred:" << totalFramesTransferred |
| << " perf_mode_requested:" << perfModeRequested << "(" << perfModeRequestedStr << ")" |
| << " perf_mode_actual:" << perfModeActual << "(" << perfModeActualStr << ")" |
| << " sharing:" << sharingModeActual << "(" << sharingModeActualStr << ")" |
| << " xrun_count:" << xrunCount |
| << " device_type:" << serializedDeviceTypes |
| << " format_app:" << formatApp << "(" << formatAppStr << ")" |
| << " format_device: " << formatDevice << "(" << formatDeviceStr << ")" |
| << " log_session_id: " << logSessionId |
| << " sample_rate: " << sampleRate |
| << " content_type: " << contentType << "(" << contentTypeStr << ")" |
| << " sharing_requested:" << sharingModeRequested |
| << "(" << sharingModeRequestedStr << ")"; |
| |
| if (mAudioAnalytics.mDeliverStatistics) { |
| android::util::BytesField bf_serialized( |
| serializedDeviceTypes.c_str(), serializedDeviceTypes.size()); |
| const auto result = sendToStatsd( |
| CONDITION(android::util::MEDIAMETRICS_AAUDIOSTREAM_REPORTED) |
| , path |
| , direction |
| , framesPerBurst |
| , bufferSizeInFrames |
| , bufferCapacityInFrames |
| , channelCount |
| , totalFramesTransferred |
| , perfModeRequested |
| , perfModeActual |
| , sharingModeActual |
| , xrunCount |
| , bf_serialized |
| , formatApp |
| , formatDevice |
| , logSessionId.c_str() |
| , sampleRate |
| , contentType |
| , sharingModeRequested |
| ); |
| std::stringstream ss; |
| ss << "result:" << result; |
| const auto fieldsStr = printFields(AAudioStreamFields, |
| CONDITION(android::util::MEDIAMETRICS_AAUDIOSTREAM_REPORTED) |
| , path |
| , direction |
| , framesPerBurst |
| , bufferSizeInFrames |
| , bufferCapacityInFrames |
| , channelCount |
| , totalFramesTransferred |
| , perfModeRequested |
| , perfModeActual |
| , sharingModeActual |
| , xrunCount |
| , serializedDeviceTypes.c_str() |
| , formatApp |
| , formatDevice |
| , logSessionId.c_str() |
| , sampleRate |
| , contentType |
| , sharingModeRequested |
| ); |
| ss << " " << fieldsStr; |
| std::string str = ss.str(); |
| ALOGV("%s: statsd %s", __func__, str.c_str()); |
| mAudioAnalytics.mStatsdLog->log(android::util::MEDIAMETRICS_AAUDIOSTREAM_REPORTED, str); |
| } |
| } |
| |
| // Create new state, typically occurs after an AudioFlinger ctor event. |
| void AudioAnalytics::newState() |
| { |
| mPreviousAnalyticsState.set(std::make_shared<AnalyticsState>( |
| *mAnalyticsState.get())); |
| // Note: get returns shared_ptr temp, whose lifetime is extended |
| // to end of full expression. |
| mAnalyticsState->clear(); // TODO: filter the analytics state. |
| // Perhaps report this. |
| |
| // Set up a timer to expire the previous audio state to save space. |
| // Use the transaction log size as a cookie to see if it is the |
| // same as before. A benign race is possible where a state is cleared early. |
| const size_t size = mPreviousAnalyticsState->transactionLog().size(); |
| mTimedAction.postIn( |
| std::chrono::seconds(PREVIOUS_STATE_EXPIRE_SEC), [this, size](){ |
| if (mPreviousAnalyticsState->transactionLog().size() == size) { |
| ALOGD("expiring previous audio state after %d seconds.", |
| PREVIOUS_STATE_EXPIRE_SEC); |
| mPreviousAnalyticsState->clear(); // removes data from the state. |
| } |
| }); |
| } |
| |
| void AudioAnalytics::Health::onAudioServerStart(Module module, |
| const std::shared_ptr<const android::mediametrics::Item> &item) |
| { |
| const auto nowTime = std::chrono::system_clock::now(); |
| if (module == Module::AUDIOFLINGER) { |
| { |
| std::lock_guard lg(mLock); |
| // reset state on AudioFlinger construction. |
| // AudioPolicy is created after AudioFlinger. |
| mAudioFlingerCtorTime = nowTime; |
| mSimpleLog.log("AudioFlinger ctor"); |
| } |
| mAudioAnalytics.newState(); |
| return; |
| } |
| if (module == Module::AUDIOPOLICY) { |
| // A start event occurs when audioserver |
| // |
| // (1) Starts the first time |
| // (2) Restarts because of the TimeCheck watchdog |
| // (3) Restarts not because of the TimeCheck watchdog. |
| int64_t executionTimeNs = 0; |
| (void)item->get(AMEDIAMETRICS_PROP_EXECUTIONTIMENS, &executionTimeNs); |
| const float loadTimeMs = executionTimeNs * 1e-6f; |
| std::lock_guard lg(mLock); |
| const int64_t restarts = mStartCount; |
| if (mStopCount == mStartCount) { |
| mAudioPolicyCtorTime = nowTime; |
| ++mStartCount; |
| if (mStopCount == 0) { |
| // (1) First time initialization. |
| ALOGW("%s: (key=%s) AudioPolicy ctor, loadTimeMs:%f", |
| __func__, item->getKey().c_str(), loadTimeMs); |
| mSimpleLog.log("AudioPolicy ctor, loadTimeMs:%f", loadTimeMs); |
| } else { |
| // (2) Previous failure caught due to TimeCheck. We know how long restart takes. |
| const float restartMs = |
| std::chrono::duration_cast<std::chrono::duration<float, std::milli>>( |
| mAudioFlingerCtorTime - mStopTime).count(); |
| ALOGW("%s: (key=%s) AudioPolicy ctor, " |
| "restarts:%lld restartMs:%f loadTimeMs:%f", |
| __func__, item->getKey().c_str(), |
| (long long)restarts, restartMs, loadTimeMs); |
| mSimpleLog.log("AudioPolicy ctor restarts:%lld restartMs:%f loadTimeMs:%f", |
| (long long)restarts, restartMs, loadTimeMs); |
| } |
| } else { |
| // (3) Previous failure is NOT due to TimeCheck, so we don't know the restart time. |
| // However we can estimate the uptime from the delta time from previous ctor. |
| const float uptimeMs = |
| std::chrono::duration_cast<std::chrono::duration<float, std::milli>>( |
| nowTime - mAudioFlingerCtorTime).count(); |
| mStopCount = mStartCount; |
| mAudioPolicyCtorTime = nowTime; |
| ++mStartCount; |
| |
| ALOGW("%s: (key=%s) AudioPolicy ctor after uncaught failure, " |
| "mStartCount:%lld mStopCount:%lld uptimeMs:%f loadTimeMs:%f", |
| __func__, item->getKey().c_str(), |
| (long long)mStartCount, (long long)mStopCount, uptimeMs, loadTimeMs); |
| mSimpleLog.log("AudioPolicy ctor after uncaught failure, " |
| "restarts:%lld uptimeMs:%f loadTimeMs:%f", |
| (long long)restarts, uptimeMs, loadTimeMs); |
| } |
| } |
| } |
| |
| void AudioAnalytics::Health::onAudioServerTimeout(Module module, |
| const std::shared_ptr<const android::mediametrics::Item> &item) |
| { |
| std::string moduleName = getModuleName(module); |
| int64_t methodCode{}; |
| std::string methodName; |
| (void)item->get(AMEDIAMETRICS_PROP_METHODCODE, &methodCode); |
| (void)item->get(AMEDIAMETRICS_PROP_METHODNAME, &methodName); |
| |
| std::lock_guard lg(mLock); |
| if (mStopCount >= mStartCount) { |
| ALOGD("%s: (key=%s) %s timeout %s(%lld) " |
| "unmatched mStopCount(%lld) >= mStartCount(%lld), ignoring", |
| __func__, item->getKey().c_str(), moduleName.c_str(), |
| methodName.c_str(), (long long)methodCode, |
| (long long)mStopCount, (long long)mStartCount); |
| return; |
| } |
| |
| const int64_t restarts = mStartCount - 1; |
| ++mStopCount; |
| mStopTime = std::chrono::system_clock::now(); |
| const float uptimeMs = std::chrono::duration_cast<std::chrono::duration<float, std::milli>>( |
| mStopTime - mAudioFlingerCtorTime).count(); |
| ALOGW("%s: (key=%s) %s timeout %s(%lld) restarts:%lld uptimeMs:%f", |
| __func__, item->getKey().c_str(), moduleName.c_str(), |
| methodName.c_str(), (long long)methodCode, |
| (long long)restarts, uptimeMs); |
| mSimpleLog.log("%s timeout %s(%lld) restarts:%lld uptimeMs:%f", |
| moduleName.c_str(), methodName.c_str(), (long long)methodCode, |
| (long long)restarts, uptimeMs); |
| } |
| |
| std::pair<std::string, int32_t> AudioAnalytics::Health::dump( |
| int32_t lines, const char *prefix) const |
| { |
| std::lock_guard lg(mLock); |
| std::string s = mSimpleLog.dumpToString(prefix == nullptr ? "" : prefix, lines); |
| size_t n = std::count(s.begin(), s.end(), '\n'); |
| return { s, n }; |
| } |
| |
| |
| } // namespace android::mediametrics |
