| /* |
| * 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 "Stats" |
| |
| #include <ctime> |
| #include <iostream> |
| #include <stdint.h> |
| #include <fstream> |
| |
| #include "Stats.h" |
| |
| /** |
| * Dumps the stats of the operation for a given input media. |
| * |
| * \param operation describes the operation performed on the input media |
| * (i.e. extract/mux/decode/encode) |
| * \param inputReference input media |
| * \param durationUs is a duration of the input media in microseconds. |
| * \param componentName describes the codecName/muxFormat/mimeType. |
| * \param mode the operating mode: sync/async. |
| * \param statsFile the file where the stats data is to be written. |
| */ |
| void Stats::dumpStatistics(string operation, string inputReference, int64_t durationUs, |
| string componentName, string mode, string statsFile) { |
| ALOGV("In %s", __func__); |
| if (!mOutputTimer.size()) { |
| ALOGE("No output produced"); |
| return; |
| } |
| nsecs_t totalTimeTakenNs = getTotalTime(); |
| nsecs_t timeTakenPerSec = (totalTimeTakenNs * 1000000) / durationUs; |
| nsecs_t timeToFirstFrameNs = *mOutputTimer.begin() - mStartTimeNs; |
| int32_t size = std::accumulate(mFrameSizes.begin(), mFrameSizes.end(), 0); |
| // get min and max output intervals. |
| nsecs_t intervalNs; |
| nsecs_t minTimeTakenNs = INT64_MAX; |
| nsecs_t maxTimeTakenNs = 0; |
| nsecs_t prevIntervalNs = mStartTimeNs; |
| for (int32_t idx = 0; idx < mOutputTimer.size() - 1; idx++) { |
| intervalNs = mOutputTimer.at(idx) - prevIntervalNs; |
| prevIntervalNs = mOutputTimer.at(idx); |
| if (minTimeTakenNs > intervalNs) minTimeTakenNs = intervalNs; |
| else if (maxTimeTakenNs < intervalNs) maxTimeTakenNs = intervalNs; |
| } |
| |
| // Write the stats data to file. |
| int64_t dataSize = size; |
| int64_t bytesPerSec = ((int64_t)dataSize * 1000000000) / totalTimeTakenNs; |
| string rowData = ""; |
| rowData.append(to_string(systemTime(CLOCK_MONOTONIC)) + ", "); |
| rowData.append(inputReference + ", "); |
| rowData.append(operation + ", "); |
| rowData.append(componentName + ", "); |
| rowData.append("NDK, "); |
| rowData.append(mode + ", "); |
| rowData.append(to_string(mInitTimeNs) + ", "); |
| rowData.append(to_string(mDeInitTimeNs) + ", "); |
| rowData.append(to_string(minTimeTakenNs) + ", "); |
| rowData.append(to_string(maxTimeTakenNs) + ", "); |
| rowData.append(to_string(totalTimeTakenNs / mOutputTimer.size()) + ", "); |
| rowData.append(to_string(timeTakenPerSec) + ", "); |
| rowData.append(to_string(bytesPerSec) + ", "); |
| rowData.append(to_string(timeToFirstFrameNs) + ", "); |
| rowData.append(to_string(size) + ","); |
| rowData.append(to_string(totalTimeTakenNs) + ",\n"); |
| |
| ofstream out(statsFile, ios::out | ios::app); |
| if(out.bad()) { |
| ALOGE("Failed to open stats file for writing!"); |
| return; |
| } |
| out << rowData; |
| out.close(); |
| } |