Recherche avancée

Sur d’autres sites (12675)

• Capture from multiple streams concurrently, best way to do it and how to reduce CPU usage

  19 juin 2019, par DRONE_6969

  I am currently in the process of writing an application that will capture a lot of RTSP streams(in my case its 12) and display it on the QT widget. The problem arouses when I am going beyond around 6-7 streams, the CPU usage spikes and there is visible stutter.

  The reason why I think that it is not QT draw function is because I have done some checking to measure how much time it takes to draw an incoming image from camera and just sample images I had, it is always a lot less than 33 milliseconds(even if there are 12 widgets being updated).

  I also just ran opencv capture method without drawing and got pretty much the same CPU consumption as if I was drawing the frames (lost like 10% CPU at most and GPU usage went to zero).

  IMPORTANT : I am using RTSP stream which is a h264 stream.

  IF IT MATTERS MY SPECS :

  Intel Core i7-6700 @ 3.40GHZ(8 CPUS)
  Memory : 16gb
  GPU : Intel HD Graphics 530

  (Also I ran my code on a computer with dedicated Graphics card, it did eliminate some stutter but CPU usage is still pretty high)

  I am currently using OPENCV 4.1.0 with GSTREAMER enabled and built, I also have the OPENCV-WORLD version, there is no difference in performance.

  I have created a special class called Camera that holds its frame size constraints and various control functions as well stream function. The stream function is being ran on a separate thread, whenever stream() function is done with current frame it sends ready Mat via onNewFrame event I created which converts to QPixmap and updates widget’s lastImage variable. This way I can update image in a more thread safe way.

  I have tried to manipulate those VideoCapture.set() values, but it didn’t really help.

  This is my stream function (Ignore the bool return, it doesn’t do anything it is a remnant from couple of minutes ago when I was trying to use std::async) :

  bool Camera::stream() {
  
      /* This function is meant to run on a separate thread and fill up the buffer independantly of
  
      main stream thread */
  
      //cv::setNumThreads(100);
  
      /* Rules for these slightly changed! */
  
      Mat pre;  // Grab initial undoctored frame
  
      //pre = Mat::zeros(size, CV_8UC1);
  
      Mat frame; // Final modified frame
  
      frame = Mat::zeros(size, CV_8UC1);
  
      if (!pre.isContinuous()) pre = pre.clone();
  
  
  
      ipCam.open(streamUrl, CAP_FFMPEG);
  
  
  
  
  
      while (ipCam.isOpened() && capture) {
  
          // If camera is opened wel need to capture and process the frame
  
          try {
  
              auto start = std::chrono::system_clock::now();
  
  
  
              ipCam >> pre;
  
  
  
              if (pre.empty()) {
  
                  /* Check for blank frame, return error if there is a blank frame*/
  
                  cerr << id << ": ERROR! blank frame grabbed\n";
  
                  for (FrameListener* i : clients) {
  
                      i->onNotification(1); // Notify clients about this shit
  
                  }
  
                  break;
  
              }
  
  
  
              else {
  
                  // Only continue if frame not empty
  
  
  
                  if (pre.cols != size.width && pre.rows != size.height) {
  
                      resize(pre, frame, size);
  
                      pre.release();
  
                  }
  
                  else {
  
                      frame = pre;
  
                  }
  
  
  
                  dPacket* pack = new dPacket{id,&frame};
  
                  for (auto i : clients) {
  
                      i->onPNewFrame(pack);
  
                  }
  
                  frame.release();
  
                  delete pack;
  
              }
  
          }
  
  
  
          catch (int e) {
  
              cout << endl << "-----Exception during capture process! CODE " << e << endl;
  
          }
  
          // End camera manipulations
  
      }
  
  
  
      cout << "Camera timed out, or connection is closed..." << endl;
  
      if (tryResetConnection) {
  
          cout << "Reconnection flag is set, retrying after 3 seconds..." << endl;
  
          for (FrameListener* i : clients) {
  
              i->onNotification(-1); // Notify clients about this shit
  
          }
  
          this_thread::sleep_for(chrono::milliseconds(3000));
  
          stream();
  
      }
  
  
  
      return true;
  
  }

  This is my onPNewFrame function. The conversion is still being done on camera’s thread because it was called within stream() and therefore is within that scope(and I also checked) :

  void GLWidget::onPNewFrame(dPacket* inPack) {
  
      lastFlag = 0;
  
  
  
      if (bufferEnabled) {
  
          buffer.push(QPixmap::fromImage(toQImageFromPMat(inPack->frame)));
  
      }
  
      else {
  
          if (playing) {
  
              /* Only process if this widget is playing */
  
              frameProcessing = true;
  
              lastImage.convertFromImage(toQImageFromPMat(inPack->frame));
  
              frameProcessing = false;
  
          }
  
      }
  
  
  
      if (lastFlag != -1 && !lastImage.isNull()) {
  
          connecting = false;
  
      }
  
      else {
  
          connecting = true;
  
      }
  
  }

  This is my Mat to QImage :

  QImage GLWidget::toQImageFromPMat(cv::Mat* mat) {
  
  
  
  
  
  
  
      return QImage(mat->data, mat->cols, mat->rows, QImage::Format_RGB888).rgbSwapped();

  NOTE : not converting does not result in CPU boost (at least not a significant one).

  Minimal verifiable example

  This program is large. I am going to paste GLWidget.cpp and GLWidget.h as well as Camera.h and Camera.cpp. You can put GLWidget into anything just as long as you spawn more than 6 of it. Camera relies on the CamUtils, but it is possible to just paste url in videocapture

  I also supplied CamUtils, just in case

  Camera.h :

  #pragma once
  
  #include <iostream>
  
  #include <vector>
  
  #include <fstream>
  
  #include <map>
  
  #include <string>
  
  #include <sstream>
  
  #include <algorithm>
  
  #include "FrameListener.h"
  
  #include 
  
  #include <thread>
  
  #include "CamUtils.h"
  
  #include <ctime>
  
  #include "dPacket.h"
  
  
  
  using namespace std;
  
  using namespace cv;
  
  
  
  class Camera
  
  {
  
  
  
      /*
  
          CLEANED UP!
  
          Camera now is only responsible for streaming and echoing captured frames.
  
          Frames are now wrapped into dPacket struct.
  
      */
  
  
  
  
  
  private:
  
      string id;
  
      vector clients;
  
      VideoCapture ipCam;
  
      string streamUrl;
  
      Size size;
  
      bool tryResetConnection = false;
  
  
  
      //TODO: Remove these as they are not going to be used going on:
  
      bool isPlaying = true;
  
      bool capture = true;
  
  
  
      //SECRET FEATURES:
  
      bool detect = false;
  
  
  
  
  
  public:
  
      Camera(string url, int width = 480, int height = 240, bool detect_=false);
  
      bool stream();
  
      void setReconnectable(bool newReconStatus);
  
      void addListener(FrameListener* client);
  
      vector<bool> getState();    // Returns current state: vector[0] stream state; vector[1] stream state; TODO: Remove this as this is no longer should control behaviour
  
      void killStream();
  
      bool getReconnectable();
  
  };
  
  
  
  </bool></ctime></thread></algorithm></sstream></string></map></fstream></vector></iostream>

  Camera.cpp

  #include "Camera.h"
  
  
  
  
  
  Camera::Camera(string url, int width, int height, bool detect_) // Default 240p
  
  {
  
      streamUrl = url; // Prepare url
  
      size = Size(width, height);
  
      detect = detect_;
  
  
  
  }
  
  
  
  void Camera::addListener(FrameListener* client) {
  
      clients.push_back(client);
  
  }
  
  
  
  
  
  /*
  
                  TEST CAMERAS(Paste into cameras.dViewer):
  
                  {"id":"96a73796-c129-46fc-9c01-40acd8ed7122","ip":"176.57.73.231","password":"null","username":"null"},
  
                  {"id":"96a73796-c129-46fc-9c01-40acd8ed7122","ip":"176.57.73.231","password":"null","username":"null"},
  
                  {"id":"96a73796-c129-46fc-9c01-40acd8ed7144","ip":"172.20.101.13","password":"admin","username":"root"}
  
                  {"id":"96a73796-c129-46fc-9c01-40acd8ed7144","ip":"172.20.101.13","password":"admin","username":"root"}
  
  
  
  */
  
  
  
  
  
  
  
  bool Camera::stream() {
  
      /* This function is meant to run on a separate thread and fill up the buffer independantly of
  
      main stream thread */
  
      //cv::setNumThreads(100);
  
      /* Rules for these slightly changed! */
  
      Mat pre;  // Grab initial undoctored frame
  
      //pre = Mat::zeros(size, CV_8UC1);
  
      Mat frame; // Final modified frame
  
      frame = Mat::zeros(size, CV_8UC1);
  
      if (!pre.isContinuous()) pre = pre.clone();
  
  
  
      ipCam.open(streamUrl, CAP_FFMPEG);
  
  
  
      while (ipCam.isOpened() && capture) {
  
          // If camera is opened wel need to capture and process the frame
  
          try {
  
              auto start = std::chrono::system_clock::now();
  
  
  
              ipCam >> pre;
  
  
  
              if (pre.empty()) {
  
                  /* Check for blank frame, return error if there is a blank frame*/
  
                  cerr << id << ": ERROR! blank frame grabbed\n";
  
                  for (FrameListener* i : clients) {
  
                      i->onNotification(1); // Notify clients about this shit
  
                  }
  
                  break;
  
              }
  
  
  
              else {
  
                  // Only continue if frame not empty
  
  
  
                  if (pre.cols != size.width && pre.rows != size.height) {
  
                      resize(pre, frame, size);
  
                      pre.release();
  
                  }
  
                  else {
  
                      frame = pre;
  
                  }
  
  
  
                  auto end = std::chrono::system_clock::now();
  
                  std::time_t ts = std::chrono::system_clock::to_time_t(end);
  
                  dPacket* pack = new dPacket{ id,&frame};
  
                  for (auto i : clients) {
  
                      i->onPNewFrame(pack);
  
                  }
  
                  frame.release();
  
                  delete pack;
  
              }
  
          }
  
  
  
          catch (int e) {
  
              cout << endl << "-----Exception during capture process! CODE " << e << endl;
  
          }
  
          // End camera manipulations
  
      }
  
  
  
      cout << "Camera timed out, or connection is closed..." << endl;
  
      if (tryResetConnection) {
  
          cout << "Reconnection flag is set, retrying after 3 seconds..." << endl;
  
          for (FrameListener* i : clients) {
  
              i->onNotification(-1); // Notify clients about this shit
  
          }
  
          this_thread::sleep_for(chrono::milliseconds(3000));
  
          stream();
  
      }
  
  
  
      return true;
  
  }
  
  
  
  
  
  void Camera::killStream(){
  
      tryResetConnection = false;
  
      capture = false;
  
      ipCam.release();
  
  }
  
  
  
  void Camera::setReconnectable(bool reconFlag) {
  
      tryResetConnection = reconFlag;
  
  }
  
  
  
  bool Camera::getReconnectable() {
  
      return tryResetConnection;
  
  }
  
  
  
  vector<bool> Camera::getState() {
  
      vector<bool> states;
  
      states.push_back(isPlaying);
  
      states.push_back(ipCam.isOpened());
  
      return states;
  
  }
  
  
  
  
  
  
  
  </bool></bool>

  GLWidget.h :

  #ifndef GLWIDGET_H
  
  #define GLWIDGET_H
  
  
  
  #include <qopenglwidget>
  
  #include <qmouseevent>
  
  #include "FrameListener.h"
  
  #include "Camera.h"
  
  #include "FrameListener.h"
  
  #include 
  
  #include "Camera.h"
  
  #include "CamUtils.h"
  
  #include 
  
  #include "dPacket.h"
  
  #include <chrono>
  
  #include <ctime>
  
  #include 
  
  #include "FullScreenVideo.h"
  
  #include <qmovie>
  
  #include "helper.h"
  
  #include <iostream>
  
  #include <qpainter>
  
  #include <qtimer>
  
  
  
  class Helper;
  
  
  
  class GLWidget : public QOpenGLWidget, public FrameListener
  
  {
  
      Q_OBJECT
  
  
  
  public:
  
      GLWidget(std::string camId, CamUtils *cUtils, int width, int height, bool denyFullScreen_ = false, bool detectFlag_=false, QWidget* parent = nullptr);
  
      void killStream();
  
      ~GLWidget();
  
  
  
  public slots:
  
      void animate();
  
      void setBufferEnabled(bool setState);
  
      void setCameraRetryConnection(bool setState);
  
      void GLUpdate();            // Call to update the widget
  
      void onRightClickMenu(const QPoint&amp; point);
  
  
  
  protected:
  
      void paintEvent(QPaintEvent* event) override;
  
      void onPNewFrame(dPacket* frame);
  
      void onNotification(int alert_code);
  
  
  
  
  
  private:
  
      // Objects and resourses
  
      Helper* helper;
  
      Camera* cam;
  
      CamUtils* camUtils;
  
      QTimer* timer; // Keep track of update
  
      QPixmap lastImage;
  
      QMovie* connMov;
  
      QMovie* test;
  
  
  
      QPixmap logo;
  
  
  
      // Control fields
  
      int width;
  
      int height;
  
      int camUtilsAddr;
  
      int elapsed;
  
      std::thread* camThread;
  
      std::string camId;
  
      bool denyFullScreen = false;
  
      bool playing = true;
  
      bool streaming = true;
  
      bool debug = false;
  
      bool connecting = true;
  
      int lastFlag = 0;
  
  
  
  
  
      // Debug fields
  
      std::chrono::high_resolution_clock::time_point lastFrameAt;
  
      std::chrono::high_resolution_clock::time_point now;
  
      std::chrono::duration<double> painTime; // time took to draw last frame
  
  
  
      //Buffer stuff
  
      std::queue<qpixmap> buffer;
  
      bool bufferEnabled = false;
  
      bool initialBuffer = false;
  
      bool buffering = true;
  
      bool frameProcessing = false;
  
  
  
  
  
  
  
      //Functions
  
      QImage toQImageFromPMat(cv::Mat* inFrame);
  
      void mousePressEvent(QMouseEvent* event) override;
  
      void drawImageGLLatest(QPainter* painter, QPaintEvent* event, int elapsed);
  
      void drawOnPaused(QPainter* painter, QPaintEvent* event, int elapsed);
  
      void drawOnStatus(int statusFlag, QPainter* painter, QPaintEvent* event, int elapsed);
  
  };
  
  
  
  #endif
  
  
  
  </qpixmap></double></qtimer></qpainter></iostream></qmovie></ctime></chrono></qmouseevent></qopenglwidget>

  GLWidget.cpp :

  #include "glwidget.h"
  
  #include <future>
  
  
  
  
  
  FullScreenVideo* fullScreen;
  
  
  
  GLWidget::GLWidget(std::string camId_, CamUtils* cUtils, int width_, int height_,  bool denyFullScreen_, bool detectFlag_, QWidget* parent)
  
      : QOpenGLWidget(parent), helper(helper)
  
  {
  
      cout &lt;&lt; "Player for CAMERA " &lt;&lt; camId_ &lt;&lt; endl;
  
  
  
      /* Underlying properties */
  
      camUtils = cUtils;
  
      cout &lt;&lt; "GLWidget Incoming CamUtils addr " &lt;&lt; camUtils &lt;&lt; endl;
  
      cout &lt;&lt; "GLWidget Set CamUtils addr " &lt;&lt; camUtils &lt;&lt; endl;
  
      camId = camId_;
  
      elapsed = 0;
  
      width = width_ + 5;
  
      height = height_ + 5;
  
      helper = new Helper();
  
      setFixedSize(width, height);
  
      denyFullScreen = denyFullScreen_;
  
  
  
      /* Camera capture thread */
  
      cam = new Camera(camUtils->getCameraStreamURL(camId), width_, height_, detectFlag_);
  
      cam->addListener(this);
  
  
  
      /* Sync states */
  
      vector<bool> initState = cam->getState();
  
      playing = initState[0];
  
      streaming = initState[1];
  
      cout &lt;&lt; "Initial states: " &lt;&lt; playing &lt;&lt; " " &lt;&lt; streaming &lt;&lt; endl;
  
      camThread = new std::thread(&amp;Camera::stream, cam);
  
      cout &lt;&lt; "================================================" &lt;&lt; endl;
  
  
  
      // Right click set up
  
      setContextMenuPolicy(Qt::CustomContextMenu);
  
  
  
  
  
      /* Loading gif */
  
      connMov = new QMovie("establishingConnection.gif");
  
      connMov->start();
  
      QString url = R"(RLC-logo.png)";
  
      logo = QPixmap(url);
  
      QTimer* timer = new QTimer(this);
  
      connect(timer, SIGNAL(timeout()), this, SLOT(GLUpdate()));
  
      timer->start(1000/30);
  
      playing = true;
  
  
  
  }
  
  
  
  /* SYSTEM */
  
  void GLWidget::animate()
  
  {
  
      elapsed = (elapsed + qobject_cast(sender())->interval()) % 1000;
  
      std::cout &lt;&lt; elapsed &lt;&lt; "\n";
  
  }
  
  
  
  
  
  void GLWidget::GLUpdate() {
  
      /* Process descisions before update call */
  
      if (bufferEnabled) {
  
          /* Process buffer before update */
  
          now = chrono::high_resolution_clock::now();
  
          std::chrono::duration timeSinceLastUpdate = now - lastFrameAt;
  
          if (timeSinceLastUpdate.count() > 25) {
  
              if (buffer.size() > 1 &amp;&amp; playing) {
  
                  lastImage.swap(buffer.front());
  
                  buffer.pop();
  
                  lastFrameAt = chrono::high_resolution_clock::now();
  
              }
  
          }
  
          //update(); // Update
  
      }
  
      else {
  
          /* No buffer */
  
      }
  
      repaint();
  
  }
  
  
  
  
  
  /* EVENTS */
  
  void GLWidget::onRightClickMenu(const QPoint&amp; point) {
  
      cout &lt;&lt; "Right click request got" &lt;&lt; endl;
  
  
  
      QPoint globPos = this->mapToGlobal(point);
  
      QMenu myMenu;
  
  
  
      if (!denyFullScreen) {
  
          myMenu.addAction("Open Full Screen");
  
      }
  
      myMenu.addAction("Toggle Debug Info");
  
  
  
  
  
      QAction* selected = myMenu.exec(globPos);
  
  
  
      if (selected) {
  
          string optiontxt = selected->text().toStdString();
  
  
  
          if (optiontxt == "Open Full Screen") {
  
              cout &lt;&lt; "Chose to open full screen of " &lt;&lt; camId &lt;&lt; endl;
  
              fullScreen = new FullScreenVideo(bufferEnabled, this);
  
              fullScreen->setUpView(camUtils, camId);
  
              fullScreen->show();
  
              playing = false;
  
          }
  
  
  
          if (optiontxt == "Toggle Debug Info") {
  
              cout &lt;&lt; "Chose to toggle debug of " &lt;&lt; camId &lt;&lt; endl;
  
              debug = !debug;
  
          }
  
      }
  
      else {
  
          cout &lt;&lt; "Chose nothing!" &lt;&lt; endl;
  
      }
  
  
  
  
  
  }
  
  
  
  
  
  
  
  void GLWidget::onPNewFrame(dPacket* inPack) {
  
      lastFlag = 0;
  
  
  
      if (bufferEnabled) {
  
          buffer.push(QPixmap::fromImage(toQImageFromPMat(inPack->frame)));
  
      }
  
      else {
  
          if (playing) {
  
              /* Only process if this widget is playing */
  
              frameProcessing = true;
  
              lastImage.convertFromImage(toQImageFromPMat(inPack->frame));
  
              frameProcessing = false;
  
          }
  
      }
  
  
  
      if (lastFlag != -1 &amp;&amp; !lastImage.isNull()) {
  
          connecting = false;
  
      }
  
      else {
  
          connecting = true;
  
      }
  
  }
  
  
  
  
  
  void GLWidget::onNotification(int alert) {
  
      lastFlag = alert;   
  
  }
  
  
  
  
  
  /* Paint events*/
  
  
  
  
  
  void GLWidget::paintEvent(QPaintEvent* event)
  
  {
  
      QPainter painter(this);
  
  
  
          if (lastFlag != 0 || connecting) {
  
              drawOnStatus(lastFlag, &amp;painter, event, elapsed);
  
          }
  
          else {
  
  
  
              /* Actual frame drawing */
  
              if (playing) {
  
                  if (!frameProcessing) {
  
                      drawImageGLLatest(&amp;painter, event, elapsed);
  
                  }
  
              }
  
              else {
  
                  drawOnPaused(&amp;painter, event, elapsed);
  
              }
  
          }
  
      painter.end();
  
  
  
  }
  
  
  
  
  
  /* DRAWING STUFF */
  
  
  
  void GLWidget::drawOnStatus(int statusFlag, QPainter* bgPaint, QPaintEvent* event, int elapsed) {
  
  
  
      QString str;
  
      QFont font("times", 15);
  
      bgPaint->eraseRect(QRect(0, 0, width, height));
  
      if (!lastImage.isNull()) {
  
          bgPaint->drawPixmap(QRect(0, 0, width, height), lastImage);
  
      }
  
      /* Test background painting */
  
      if (connecting) {
  
          string k = "Connecting to " + camUtils->getIp(camId);
  
          str.append(k.c_str());
  
      }
  
      else {
  
          switch (statusFlag) {
  
          case 1:
  
              str = "Blank frame received...";
  
              break;
  
  
  
          case -1:
  
              if (cam->getReconnectable()) {
  
                  str = "Connection lost, will try to reconnect.";
  
                  bgPaint->setOpacity(0.3);
  
              }
  
              else {
  
                  str = "Connection lost...";
  
                  bgPaint->setOpacity(0.3);
  
              }
  
  
  
              break;
  
          }
  
      }
  
  
  
      bgPaint->drawPixmap(QRect(0, 0, width, height), QPixmap::fromImage(connMov->currentImage()));
  
      bgPaint->setPen(Qt::red);
  
      bgPaint->setFont(font);
  
      QFontMetrics fm(font);
  
      const QRect kek(0, 0, fm.width(str), fm.height());
  
      QRect bound;
  
      bgPaint->setOpacity(1);
  
      bgPaint->drawText(bgPaint->viewport().width()/2 - kek.width()/2, bgPaint->viewport().height()/2 - kek.height(), str);
  
  
  
      bgPaint->drawPixmap(bgPaint->viewport().width() / 2 - logo.width()/2, height - logo.width() - 15, logo);
  
  
  
  }
  
  
  
  
  
  
  
  void GLWidget::drawOnPaused(QPainter* painter, QPaintEvent* event, int elapsed) {
  
      painter->eraseRect(0, 0, width, height);
  
      QFont font = painter->font();
  
      font.setPointSize(18);
  
      painter->setPen(Qt::red);
  
      QFontMetrics fm(font);
  
      QString str("Paused");
  
      painter->drawPixmap(QRect(0, 0, width, height),lastImage);
  
      painter->drawText(QPoint(painter->viewport().width() - fm.width(str), 50), str);
  
  
  
      if (debug) {
  
          QFont font = painter->font();
  
          font.setPointSize(25);
  
          painter->setPen(Qt::red);
  
          string camMess = "CAMID: " + camId;
  
          QString mess(camMess.c_str());
  
          string camIp = "IP: " + camUtils->getIp(camId);
  
          QString ipMess(camIp.c_str());
  
          QString bufferSize("Buffer size: " + QString::number(buffer.size()));
  
          QString lastFrameText("Last frame draw time: " + QString::number(painTime.count()) + "s");
  
          painter->drawText(QPoint(10, 50), mess);
  
          painter->drawText(QPoint(10, 60), ipMess);
  
          QString bufferState;
  
          if (bufferEnabled) {
  
              bufferState = QString("Experimental BUFFER is enabled!");
  
              QString currentBufferSize("Current buffer load: " + QString::number(buffer.size()));
  
              painter->drawText(QPoint(10, 80), currentBufferSize);
  
          }
  
          else {
  
              bufferState = QString("Experimental BUFFER is disabled!");
  
          }
  
          painter->drawText(QPoint(10, 70), bufferState);
  
          painter->drawText(QPoint(10, height - 25), lastFrameText);
  
      }
  
  }
  
  
  
  
  
  void GLWidget::drawImageGLLatest(QPainter* painter, QPaintEvent* event, int elapsed) {
  
      auto start = chrono::high_resolution_clock::now();
  
      painter->drawPixmap(QRect(0, 0, width, height), lastImage);
  
      if (debug) {
  
          QFont font = painter->font();
  
          font.setPointSize(25);
  
          painter->setPen(Qt::red);
  
          string camMess = "CAMID: " + camId;
  
          QString mess(camMess.c_str());
  
          string camIp = "IP: " + camUtils->getIp(camId);
  
          QString ipMess(camIp.c_str());
  
          QString bufferSize("Buffer size: " + QString::number(buffer.size()));
  
          QString lastFrameText("Last frame draw time: " + QString::number(painTime.count()) + "s");
  
          painter->drawText(QPoint(10, 50), mess);
  
          painter->drawText(QPoint(10, 60), ipMess);
  
          QString bufferState;
  
          if(bufferEnabled){
  
              bufferState = QString("Experimental BUFFER is enabled!");
  
              QString currentBufferSize("Current buffer load: " + QString::number(buffer.size()));
  
              painter->drawText(QPoint(10,80), currentBufferSize);
  
          }
  
          else {
  
              bufferState = QString("Experimental BUFFER is disabled!");
  
              QString currentBufferSize("Current buffer load: " + QString::number(buffer.size()));
  
              painter->drawText(QPoint(10, 80), currentBufferSize);
  
          }
  
          painter->drawText(QPoint(10, 70), bufferState);
  
          painter->drawText(QPoint(10, height - 25), lastFrameText);
  
  
  
      }
  
      auto end = chrono::high_resolution_clock::now();
  
      painTime = end - start;
  
  }
  
  
  
  
  
  
  
  /* END DRAWING STUFF */
  
  
  
  
  
  
  
  /* UI EVENTS */
  
  
  
  void GLWidget::mousePressEvent(QMouseEvent* e) {
  
  
  
      if (e->button() == Qt::LeftButton) {
  
          if (fullScreen == nullptr || !fullScreen->isVisible()) { // Do not unpause if window is opened
  
              playing = !playing;
  
          }
  
      }
  
  
  
      if (e->button() == Qt::RightButton) {
  
          onRightClickMenu(e->pos());
  
      }
  
  }
  
  
  
  
  
  
  
  /* Utilities */
  
  QImage GLWidget::toQImageFromPMat(cv::Mat* mat) {
  
  
  
  
  
  
  
      return QImage(mat->data, mat->cols, mat->rows, QImage::Format_RGB888).rgbSwapped();
  
  
  
  
  
  
  
  }
  
  
  
  /* State control */
  
  
  
  void GLWidget::killStream() {
  
      cam->killStream();
  
      camThread->join();
  
  }
  
  
  
  void GLWidget::setBufferEnabled(bool newBufferState) {
  
      cout &lt;&lt; "Player: " &lt;&lt; camId &lt;&lt; ", buffer state updated: " &lt;&lt; newBufferState &lt;&lt; endl;
  
      bufferEnabled = newBufferState;
  
      buffer.empty();
  
  }
  
  
  
  void GLWidget::setCameraRetryConnection(bool newState) {
  
      cam->setReconnectable(newState);
  
  }
  
  
  
  /* Destruction */
  
  GLWidget::~GLWidget() {
  
      cam->killStream();
  
      camThread->join();
  
  }
  
  </bool></future>

  CamUtils.h :

  #pragma once
  
  #include <iostream>
  
  #include <vector>
  
  #include <fstream>
  
  #include <map>
  
  #include <string>
  
  #include <sstream>
  
  #include <algorithm>
  
  #include <nlohmann></nlohmann>json.hpp>
  
  
  
  using namespace std;
  
  using json = nlohmann::json;
  
  
  
  class CamUtils
  
  {
  
  private:
  
  
  
      string camDb = "cameras.dViewer";
  
      map> cameraList; // Legacy
  
      json cameras;
  
      ofstream dbFile;
  
      bool dbExists(); // Always hard coded
  
  
  
      /* Old IMPLEMENTATION */
  
      void writeLineToDb_(const string&amp; content, bool append = false);
  
      void loadCameras_();
  
  
  
      /* JSON based */
  
      void loadCameras();
  
  
  
  public:
  
      CamUtils();
  
      string generateRandomString(size_t length);
  
      string getCameraStreamURL(string cameraId) const;
  
      string saveCamera(string ip, string username, string pass); // Return generated id
  
      vector<string> listAllCameraIds();
  
      string getIp(string cameraId);
  
  };
  
  
  
  
  
  </string></algorithm></sstream></string></map></fstream></vector></iostream>

  CamUtils.cpp :

  #include "CamUtils.h"
  
  #pragma comment(lib, "rpcrt4.lib")  // UuidCreate - Minimum supported OS Win 2000
  
  #include 
  
  #include <iostream>
  
  
  
  CamUtils::CamUtils()
  
  {
  
      if (!dbExists()) {
  
          ofstream dbFile;
  
          dbFile.open(camDb);
  
          cameras["cameras"] = json::array();
  
          dbFile &lt;&lt; cameras &lt;&lt; std::endl;
  
          dbFile.close();
  
  
  
      }
  
      else {
  
          loadCameras();
  
      }
  
  }
  
  
  
  
  
  
  
  
  
  vector<string> CamUtils::listAllCameraIds() {
  
      vector<string> ids;
  
      cout &lt;&lt; "IN LIST " &lt;&lt; endl;
  
      for (auto&amp; cam : cameras["cameras"]) {
  
          ids.push_back(cam["id"].get<string>());
  
          //cout &lt;&lt; cam["id"].get<string>() &lt;&lt; std::endl;
  
      }
  
      return ids;
  
  }
  
  
  
  string CamUtils::getIp(string id) {
  
      vector<string> camDetails = cameraList[id];
  
      string ip = "NO IP WILL DISPLAYED UNTIL I FIGURE OUT A BUG";
  
      for (auto&amp; cam : cameras["cameras"]) {
  
          if (id == cam["id"]) {
  
              ip = cam["ip"].get<string>();
  
          }
  
      }
  
  
  
      return ip;
  
  }
  
  
  
  string CamUtils::getCameraStreamURL(string id) const {
  
      string url = "err"; // err is the default, it will be overwritten in case id is found, dont forget to check for it
  
  
  
      for (auto&amp; cam : cameras["cameras"]) {
  
          if (id == cam["id"]) {
  
              if (cam["username"].get<string>() == "null") {
  
                  url = "rtsp://" + cam["ip"].get<string>() + ":554/axis-media/media.amp?tcp";
  
              }
  
              else {
  
                  url = "rtsp://" + cam["username"].get<string>() + ":" + cam["password"].get<string>() + "@" + cam["ip"].get<string>() + ":554/axis-media/media.amp?streamprofile=720_30";
  
              }
  
          }
  
      }
  
  
  
      return url;  // Dont forget to check for err when using this shit
  
  }
  
  
  
  
  
  string CamUtils::saveCamera(string ip, string username, string password) {
  
      UUID uid;
  
      UuidCreate(&amp;uid);
  
      char* str;
  
      UuidToStringA(&amp;uid, (RPC_CSTR*)&amp;str);
  
      string id = str;
  
      cout &lt;&lt; "GEN: " &lt;&lt; id &lt;&lt; endl;
  
      json cam = json({}); //Create emtpy object
  
      cam["id"] = id;
  
      cam["ip"] = ip;
  
      cam["username"] = username;
  
      cam["password"] = password;
  
      cameras["cameras"].push_back(cam);
  
      std::ofstream out(camDb);
  
      out &lt;&lt; cameras &lt;&lt; std::endl;
  
      cout &lt;&lt; cameras["cameras"] &lt;&lt; endl;
  
  
  
      cout &lt;&lt; "Saved camera as " &lt;&lt; id &lt;&lt; endl;
  
      return id;
  
  }
  
  
  
  
  
  bool CamUtils::dbExists() {
  
      ifstream dbFile(camDb);
  
      return (bool)dbFile;
  
  }
  
  
  
  
  
  
  
  
  
  
  
  void CamUtils::loadCameras() {
  
      cout &lt;&lt; "Load call" &lt;&lt; endl;
  
      ifstream dbFile(camDb);
  
      string line;
  
      string wholeFile;
  
  
  
      while (std::getline(dbFile, line)) {
  
          cout &lt;&lt; line &lt;&lt; endl;
  
          wholeFile += line;
  
      }
  
      try {
  
          cameras = json::parse(wholeFile);
  
          //cout &lt;&lt; cameras["cameras"] &lt;&lt; endl;
  
  
  
      }
  
      catch (exception e) {
  
          cout &lt;&lt; e.what() &lt;&lt; endl;
  
      }
  
      dbFile.close();
  
  }
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  /*
  
      LEGACY CODE, TO BE REMOVED!
  
  
  
  */
  
  
  
  
  
  
  
  void CamUtils::loadCameras_() {
  
      /* 
  
          LEGACY CODE:
  
          This used to be the way to load cameras, but I moved on to JSON based configuration so this is no longer needed and will be removed soon
  
      */
  
  
  
      ifstream dbFile(camDb);
  
      string line;
  
      while (std::getline(dbFile, line)) {
  
          /*
  
              This function load camera data to the map:
  
              The order MUST be the following: 0:ID, 1:IP, 2:USERNAME, 3:PASSWORD.
  
              Always delimited with | no spaces between!
  
          */
  
          if (!line.empty()) {
  
              stringstream ss(line);
  
              string item;
  
              vector<string> splitString;
  
  
  
              while (std::getline(ss, item, '|')) {
  
                  splitString.push_back(item);
  
              }
  
              if (splitString.size() > 0) {
  
                  /* Dont even parse if the program didnt split right*/
  
                  //cout &lt;&lt; "Split string: " &lt;&lt; splitString.size() &lt;&lt; "\n";
  
                  for (int i = 0; i &lt; (splitString.size()); i++) cameraList[splitString[0]].push_back(splitString[i]);
  
              }
  
          }
  
      }
  
  }
  
  
  
  
  
  
  
  void CamUtils::writeLineToDb_(const string &amp; content, bool append) {
  
      ofstream dbFile;
  
      cout &lt;&lt; "Creating?";
  
      if (append) {
  
          dbFile.open(camDb, ios_base::app);
  
      }
  
      else {
  
          dbFile.open(camDb);
  
      }
  
  
  
      dbFile &lt;&lt; content.c_str() &lt;&lt; "\r\n";
  
      dbFile.flush();
  
  }
  
  
  
  /* JSON Reworx */
  
  
  
  
  
  
  
  
  
  string CamUtils::generateRandomString(size_t length)
  
  {
  
      const char* charmap = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
  
      const size_t charmapLength = strlen(charmap);
  
      auto generator = [&amp;]() { return charmap[rand() % charmapLength]; };
  
      string result;
  
      result.reserve(length);
  
      generate_n(back_inserter(result), length, generator);
  
      return result;
  
  }
  
  </string></string></string></string></string></string></string></string></string></string></string></string></iostream>

  End of example

  How would I go about decreasing CPU usage when dealing with large amount of streams ?

• FFMPEG Output File is Empty Nothing was Encoded (for a Picture) ?

  4 mars 2023, par Sarah Szabo

  I have a strange issue effecting one of my programs that does bulk media conversions using ffmpeg from the command line, however this effects me using it directly from the shell as well :

  


  ffmpeg -i INPUT.mkv -ss 0:30 -y -qscale:v 2 -frames:v 1 -f image2 -huffman optimal "OUTPUT.png"
fails every run with the error message :
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)

  


  This only happens with very specific videos, and seemingly no other videos. File type is usually .webm. These files have been downloaded properly (usually from yt-dlp), and I have tried re-downloading them just to verify their integrity.

  


  One such file from a colleague was : https://www.dropbox.com/s/xkucr2z5ra1p2oh/Triggerheart%20Execlica%20OST%20%28Arrange%29%20-%20Crueltear%20Ending.mkv?dl=0

  


  Is there a subtle issue with the command string ?

  


  Notes :

  


  removing -huffman optimal had no effect

  


  moving -ss to before -i had no effect

  


  removing -f image2 had no effect

  


  Full Log :

  


  sarah@MidnightStarSign:~/Music/Playlists/Indexing/Indexing Temp$ ffmpeg -i Triggerheart\ Execlica\ OST\ \(Arrange\)\ -\ Crueltear\ Ending.mkv -ss 0:30 -y -qscale:v 2 -frames:v 1 -f image2 -huffman optimal "TEST.png"
ffmpeg version n5.1.2 Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 12.2.0 (GCC)
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmfx --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librav1e --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-version3 --enable-vulkan
  libavutil      57. 28.100 / 57. 28.100
  libavcodec     59. 37.100 / 59. 37.100
  libavformat    59. 27.100 / 59. 27.100
  libavdevice    59.  7.100 / 59.  7.100
  libavfilter     8. 44.100 /  8. 44.100
  libswscale      6.  7.100 /  6.  7.100
  libswresample   4.  7.100 /  4.  7.100
  libpostproc    56.  6.100 / 56.  6.100
[matroska,webm @ 0x55927f484740] Could not find codec parameters for stream 2 (Attachment: none): unknown codec
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, matroska,webm, from 'Triggerheart Execlica OST (Arrange) - Crueltear Ending.mkv':
  Metadata:
    title           : TriggerHeart Exelica PS2 & 360 Arrange ー 16 - Crueltear Ending
    PURL            : https://www.youtube.com/watch?v=zJ0bEa_8xEg
    COMMENT         : https://www.youtube.com/watch?v=zJ0bEa_8xEg
    ARTIST          : VinnyVynce
    DATE            : 20170905
    ENCODER         : Lavf59.27.100
  Duration: 00:00:30.00, start: -0.007000, bitrate: 430 kb/s
  Stream #0:0(eng): Video: vp9 (Profile 0), yuv420p(tv, bt709), 720x720, SAR 1:1 DAR 1:1, 25 fps, 25 tbr, 1k tbn (default)
    Metadata:
      DURATION        : 00:00:29.934000000
  Stream #0:1(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
    Metadata:
      DURATION        : 00:00:30.001000000
  Stream #0:2: Attachment: none
    Metadata:
      filename        : cover.webp
      mimetype        : image/webp
Codec AVOption huffman (Huffman table strategy) specified for output file #0 (TEST.png) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
Stream mapping:
  Stream #0:0 -> #0:0 (vp9 (native) -> png (native))
Press [q] to stop, [?] for help
Output #0, image2, to 'TEST.png':
  Metadata:
    title           : TriggerHeart Exelica PS2 & 360 Arrange ー 16 - Crueltear Ending
    PURL            : https://www.youtube.com/watch?v=zJ0bEa_8xEg
    COMMENT         : https://www.youtube.com/watch?v=zJ0bEa_8xEg
    ARTIST          : VinnyVynce
    DATE            : 20170905
    encoder         : Lavf59.27.100
  Stream #0:0(eng): Video: png, rgb24, 720x720 [SAR 1:1 DAR 1:1], q=2-31, 200 kb/s, 25 fps, 25 tbn (default)
    Metadata:
      DURATION        : 00:00:29.934000000
      encoder         : Lavc59.37.100 png
frame=    0 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)


  


  Manjaro OS System Specs :

  


  System:&#xA;  Kernel: 6.1.12-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 12.2.1&#xA;    parameters: BOOT_IMAGE=/@/boot/vmlinuz-6.1-x86_64&#xA;    root=UUID=f11386cf-342d-47ac-84e6-484b7b2f377d rw rootflags=subvol=@&#xA;    radeon.modeset=1 nvdia-drm.modeset=1 quiet&#xA;    cryptdevice=UUID=059df4b4-5be4-44d6-a23a-de81135eb5b4:luks-disk&#xA;    root=/dev/mapper/luks-disk apparmor=1 security=apparmor&#xA;    resume=/dev/mapper/luks-swap udev.log_priority=3&#xA;  Desktop: KDE Plasma v: 5.26.5 tk: Qt v: 5.15.8 wm: kwin_x11 vt: 1 dm: SDDM&#xA;    Distro: Manjaro Linux base: Arch Linux&#xA;Machine:&#xA;  Type: Desktop Mobo: ASUSTeK model: PRIME X570-PRO v: Rev X.0x&#xA;    serial: <superuser required="required"> UEFI: American Megatrends v: 4408&#xA;    date: 10/27/2022&#xA;Battery:&#xA;  Message: No system battery data found. Is one present?&#xA;Memory:&#xA;  RAM: total: 62.71 GiB used: 27.76 GiB (44.3%)&#xA;  RAM Report: permissions: Unable to run dmidecode. Root privileges required.&#xA;CPU:&#xA;  Info: model: AMD Ryzen 9 5950X bits: 64 type: MT MCP arch: Zen 3&#x2B; gen: 4&#xA;    level: v3 note: check built: 2022 process: TSMC n6 (7nm) family: 0x19 (25)&#xA;    model-id: 0x21 (33) stepping: 0 microcode: 0xA201016&#xA;  Topology: cpus: 1x cores: 16 tpc: 2 threads: 32 smt: enabled cache:&#xA;    L1: 1024 KiB desc: d-16x32 KiB; i-16x32 KiB L2: 8 MiB desc: 16x512 KiB&#xA;    L3: 64 MiB desc: 2x32 MiB&#xA;  Speed (MHz): avg: 4099 high: 4111 min/max: 2200/6358 boost: disabled&#xA;    scaling: driver: acpi-cpufreq governor: schedutil cores: 1: 4099 2: 4095&#xA;    3: 4102 4: 4100 5: 4097 6: 4100 7: 4110 8: 4111 9: 4083 10: 4099 11: 4100&#xA;    12: 4094 13: 4097 14: 4101 15: 4100 16: 4099 17: 4100 18: 4097 19: 4098&#xA;    20: 4095 21: 4100 22: 4099 23: 4099 24: 4105 25: 4098 26: 4100 27: 4100&#xA;    28: 4092 29: 4103 30: 4101 31: 4100 32: 4099 bogomips: 262520&#xA;  Flags: 3dnowprefetch abm adx aes aperfmperf apic arat avic avx avx2 bmi1&#xA;    bmi2 bpext cat_l3 cdp_l3 clflush clflushopt clwb clzero cmov cmp_legacy&#xA;    constant_tsc cpb cpuid cqm cqm_llc cqm_mbm_local cqm_mbm_total&#xA;    cqm_occup_llc cr8_legacy cx16 cx8 de decodeassists erms extapic&#xA;    extd_apicid f16c flushbyasid fma fpu fsgsbase fsrm fxsr fxsr_opt ht&#xA;    hw_pstate ibpb ibrs ibs invpcid irperf lahf_lm lbrv lm mba mca mce&#xA;    misalignsse mmx mmxext monitor movbe msr mtrr mwaitx nonstop_tsc nopl npt&#xA;    nrip_save nx ospke osvw overflow_recov pae pat pausefilter pclmulqdq&#xA;    pdpe1gb perfctr_core perfctr_llc perfctr_nb pfthreshold pge pku pni popcnt&#xA;    pse pse36 rapl rdpid rdpru rdrand rdseed rdt_a rdtscp rep_good sep sha_ni&#xA;    skinit smap smca smep ssbd sse sse2 sse4_1 sse4_2 sse4a ssse3 stibp succor&#xA;    svm svm_lock syscall tce topoext tsc tsc_scale umip v_spec_ctrl&#xA;    v_vmsave_vmload vaes vgif vmcb_clean vme vmmcall vpclmulqdq wbnoinvd wdt&#xA;    x2apic xgetbv1 xsave xsavec xsaveerptr xsaveopt xsaves&#xA;  Vulnerabilities:&#xA;  Type: itlb_multihit status: Not affected&#xA;  Type: l1tf status: Not affected&#xA;  Type: mds status: Not affected&#xA;  Type: meltdown status: Not affected&#xA;  Type: mmio_stale_data status: Not affected&#xA;  Type: retbleed status: Not affected&#xA;  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via&#xA;    prctl&#xA;  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer&#xA;    sanitization&#xA;  Type: spectre_v2 mitigation: Retpolines, IBPB: conditional, IBRS_FW,&#xA;    STIBP: always-on, RSB filling, PBRSB-eIBRS: Not affected&#xA;  Type: srbds status: Not affected&#xA;  Type: tsx_async_abort status: Not affected&#xA;Graphics:&#xA;  Device-1: NVIDIA GA104 [GeForce RTX 3070] vendor: ASUSTeK driver: nvidia&#xA;    v: 525.89.02 alternate: nouveau,nvidia_drm non-free: 525.xx&#x2B;&#xA;    status: current (as of 2023-02) arch: Ampere code: GAxxx&#xA;    process: TSMC n7 (7nm) built: 2020-22 pcie: gen: 4 speed: 16 GT/s lanes: 8&#xA;    link-max: lanes: 16 bus-ID: 0b:00.0 chip-ID: 10de:2484 class-ID: 0300&#xA;  Device-2: AMD Cape Verde PRO [Radeon HD 7750/8740 / R7 250E]&#xA;    vendor: VISIONTEK driver: radeon v: kernel alternate: amdgpu arch: GCN-1&#xA;    code: Southern Islands process: TSMC 28nm built: 2011-20 pcie: gen: 3&#xA;    speed: 8 GT/s lanes: 8 link-max: lanes: 16 ports: active: DP-3,DP-4&#xA;    empty: DP-1, DP-2, DP-5, DP-6 bus-ID: 0c:00.0 chip-ID: 1002:683f&#xA;    class-ID: 0300 temp: 54.0 C&#xA;  Device-3: Microdia USB 2.0 Camera type: USB driver: snd-usb-audio,uvcvideo&#xA;    bus-ID: 9-2:3 chip-ID: 0c45:6367 class-ID: 0102 serial: <filter>&#xA;  Display: x11 server: X.Org v: 21.1.7 with: Xwayland v: 22.1.8&#xA;    compositor: kwin_x11 driver: X: loaded: modesetting,nvidia dri: radeonsi&#xA;    gpu: radeon display-ID: :0 screens: 1&#xA;  Screen-1: 0 s-res: 5760x2160 s-dpi: 80 s-size: 1829x686mm (72.01x27.01")&#xA;    s-diag: 1953mm (76.91")&#xA;  Monitor-1: DP-1 pos: 1-2 res: 1920x1080 dpi: 93&#xA;    size: 527x296mm (20.75x11.65") diag: 604mm (23.8") modes: N/A&#xA;  Monitor-2: DP-1-3 pos: 2-1 res: 1920x1080 dpi: 82&#xA;    size: 598x336mm (23.54x13.23") diag: 686mm (27.01") modes: N/A&#xA;  Monitor-3: DP-1-4 pos: 1-1 res: 1920x1080 dpi: 93&#xA;    size: 527x296mm (20.75x11.65") diag: 604mm (23.8") modes: N/A&#xA;  Monitor-4: DP-3 pos: primary,2-2 res: 1920x1080 dpi: 82&#xA;    size: 598x336mm (23.54x13.23") diag: 686mm (27.01") modes: N/A&#xA;  Monitor-5: DP-4 pos: 2-4 res: 1920x1080 dpi: 82&#xA;    size: 598x336mm (23.54x13.23") diag: 686mm (27.01") modes: N/A&#xA;  Monitor-6: HDMI-0 pos: 1-3 res: 1920x1080 dpi: 93&#xA;    size: 527x296mm (20.75x11.65") diag: 604mm (23.8") modes: N/A&#xA;  API: OpenGL v: 4.6.0 NVIDIA 525.89.02 renderer: NVIDIA GeForce RTX&#xA;    3070/PCIe/SSE2 direct-render: Yes&#xA;Audio:&#xA;  Device-1: NVIDIA GA104 High Definition Audio vendor: ASUSTeK&#xA;    driver: snd_hda_intel bus-ID: 5-1:2 v: kernel chip-ID: 30be:1019 pcie:&#xA;    class-ID: 0102 gen: 4 speed: 16 GT/s lanes: 8 link-max: lanes: 16&#xA;    bus-ID: 0b:00.1 chip-ID: 10de:228b class-ID: 0403&#xA;  Device-2: AMD Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000&#xA;    Series] vendor: VISIONTEK driver: snd_hda_intel v: kernel pcie: gen: 3&#xA;    speed: 8 GT/s lanes: 8 link-max: lanes: 16 bus-ID: 0c:00.1&#xA;    chip-ID: 1002:aab0 class-ID: 0403&#xA;  Device-3: AMD Starship/Matisse HD Audio vendor: ASUSTeK&#xA;    driver: snd_hda_intel v: kernel pcie: gen: 4 speed: 16 GT/s lanes: 16&#xA;    bus-ID: 0e:00.4 chip-ID: 1022:1487 class-ID: 0403&#xA;  Device-4: Schiit Audio Unison Universal Dac type: USB driver: snd-usb-audio&#xA;  Device-5: JMTek LLC. Plugable USB Audio Device type: USB&#xA;    driver: hid-generic,snd-usb-audio,usbhid bus-ID: 5-2:3 chip-ID: 0c76:120b&#xA;    class-ID: 0300 serial: <filter>&#xA;  Device-6: ASUSTek ASUS AI Noise-Cancelling Mic Adapter type: USB&#xA;    driver: hid-generic,snd-usb-audio,usbhid bus-ID: 5-4:4 chip-ID: 0b05:194e&#xA;    class-ID: 0300 serial: <filter>&#xA;  Device-7: Microdia USB 2.0 Camera type: USB driver: snd-usb-audio,uvcvideo&#xA;    bus-ID: 9-2:3 chip-ID: 0c45:6367 class-ID: 0102 serial: <filter>&#xA;  Sound API: ALSA v: k6.1.12-1-MANJARO running: yes&#xA;  Sound Interface: sndio v: N/A running: no&#xA;  Sound Server-1: PulseAudio v: 16.1 running: no&#xA;  Sound Server-2: PipeWire v: 0.3.65 running: yes&#xA;Network:&#xA;  Device-1: Intel I211 Gigabit Network vendor: ASUSTeK driver: igb v: kernel&#xA;    pcie: gen: 1 speed: 2.5 GT/s lanes: 1 port: f000 bus-ID: 07:00.0&#xA;    chip-ID: 8086:1539 class-ID: 0200&#xA;  IF: enp7s0 state: up speed: 1000 Mbps duplex: full mac: <filter>&#xA;  IP v4: <filter> type: dynamic noprefixroute scope: global&#xA;    broadcast: <filter>&#xA;  IP v6: <filter> type: noprefixroute scope: link&#xA;  IF-ID-1: docker0 state: down mac: <filter>&#xA;  IP v4: <filter> scope: global broadcast: <filter>&#xA;  WAN IP: <filter>&#xA;Bluetooth:&#xA;  Device-1: Cambridge Silicon Radio Bluetooth Dongle (HCI mode) type: USB&#xA;    driver: btusb v: 0.8 bus-ID: 5-5.3:7 chip-ID: 0a12:0001 class-ID: e001&#xA;  Report: rfkill ID: hci0 rfk-id: 0 state: up address: see --recommends&#xA;Logical:&#xA;  Message: No logical block device data found.&#xA;  Device-1: luks-c847cf9f-c6b5-4624-a25e-4531e318851a maj-min: 254:2&#xA;    type: LUKS dm: dm-2 size: 3.64 TiB&#xA;  Components:&#xA;  p-1: sda1 maj-min: 8:1 size: 3.64 TiB&#xA;  Device-2: luks-swap maj-min: 254:1 type: LUKS dm: dm-1 size: 12 GiB&#xA;  Components:&#xA;  p-1: nvme0n1p2 maj-min: 259:2 size: 12 GiB&#xA;  Device-3: luks-disk maj-min: 254:0 type: LUKS dm: dm-0 size: 919.01 GiB&#xA;  Components:&#xA;  p-1: nvme0n1p3 maj-min: 259:3 size: 919.01 GiB&#xA;RAID:&#xA;  Message: No RAID data found.&#xA;Drives:&#xA;  Local Storage: total: 9.1 TiB used: 2.79 TiB (30.6%)&#xA;  SMART Message: Unable to run smartctl. Root privileges required.&#xA;  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Western Digital&#xA;    model: WDS100T3X0C-00SJG0 size: 931.51 GiB block-size: physical: 512 B&#xA;    logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>&#xA;    rev: 111110WD temp: 53.9 C scheme: GPT&#xA;  ID-2: /dev/nvme1n1 maj-min: 259:4 vendor: Western Digital&#xA;    model: WDS100T2B0C-00PXH0 size: 931.51 GiB block-size: physical: 512 B&#xA;    logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>&#xA;    rev: 211070WD temp: 46.9 C scheme: GPT&#xA;  ID-3: /dev/sda maj-min: 8:0 vendor: Western Digital&#xA;    model: WD4005FZBX-00K5WB0 size: 3.64 TiB block-size: physical: 4096 B&#xA;    logical: 512 B speed: 6.0 Gb/s type: HDD rpm: 7200 serial: <filter>&#xA;    rev: 1A01 scheme: GPT&#xA;  ID-4: /dev/sdb maj-min: 8:16 vendor: Western Digital&#xA;    model: WD4005FZBX-00K5WB0 size: 3.64 TiB block-size: physical: 4096 B&#xA;    logical: 512 B speed: 6.0 Gb/s type: HDD rpm: 7200 serial: <filter>&#xA;    rev: 1A01 scheme: GPT&#xA;  ID-5: /dev/sdc maj-min: 8:32 type: USB vendor: SanDisk&#xA;    model: Gaming Xbox 360 size: 7.48 GiB block-size: physical: 512 B&#xA;    logical: 512 B type: N/A serial: <filter> rev: 8.02 scheme: MBR&#xA;  SMART Message: Unknown USB bridge. Flash drive/Unsupported enclosure?&#xA;  Message: No optical or floppy data found.&#xA;Partition:&#xA;  ID-1: / raw-size: 919.01 GiB size: 919.01 GiB (100.00%)&#xA;    used: 611.14 GiB (66.5%) fs: btrfs dev: /dev/dm-0 maj-min: 254:0&#xA;    mapped: luks-disk label: N/A uuid: N/A&#xA;  ID-2: /boot/efi raw-size: 512 MiB size: 511 MiB (99.80%)&#xA;    used: 40.2 MiB (7.9%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1 label: EFI&#xA;    uuid: 8922-E04D&#xA;  ID-3: /home raw-size: 919.01 GiB size: 919.01 GiB (100.00%)&#xA;    used: 611.14 GiB (66.5%) fs: btrfs dev: /dev/dm-0 maj-min: 254:0&#xA;    mapped: luks-disk label: N/A uuid: N/A&#xA;  ID-4: /run/media/sarah/ConvergentRefuge raw-size: 3.64 TiB&#xA;    size: 3.64 TiB (100.00%) used: 2.19 TiB (60.1%) fs: btrfs dev: /dev/dm-2&#xA;    maj-min: 254:2 mapped: luks-c847cf9f-c6b5-4624-a25e-4531e318851a&#xA;    label: ConvergentRefuge uuid: 7d295e73-4143-4eb1-9d22-75a06b1d2984&#xA;  ID-5: /run/media/sarah/MSS_EXtended raw-size: 475.51 GiB&#xA;    size: 475.51 GiB (100.00%) used: 1.48 GiB (0.3%) fs: btrfs&#xA;    dev: /dev/nvme1n1p1 maj-min: 259:5 label: MSS EXtended&#xA;    uuid: f98b3a12-e0e4-48c7-91c2-6e3aa6dcd32c&#xA;Swap:&#xA;  Kernel: swappiness: 60 (default) cache-pressure: 100 (default)&#xA;  ID-1: swap-1 type: partition size: 12 GiB used: 6.86 GiB (57.2%)&#xA;    priority: -2 dev: /dev/dm-1 maj-min: 254:1 mapped: luks-swap label: SWAP&#xA;    uuid: c8991364-85a7-4e6c-8380-49cd5bd7a873&#xA;Unmounted:&#xA;  ID-1: /dev/nvme1n1p2 maj-min: 259:6 size: 456 GiB fs: ntfs label: N/A&#xA;    uuid: 5ECA358FCA356485&#xA;  ID-2: /dev/sdb1 maj-min: 8:17 size: 3.64 TiB fs: ntfs&#xA;    label: JerichoVariance uuid: 1AB22D5664889CBD&#xA;  ID-3: /dev/sdc1 maj-min: 8:33 size: 3.57 GiB fs: iso9660&#xA;  ID-4: /dev/sdc2 maj-min: 8:34 size: 4 MiB fs: vfat label: MISO_EFI&#xA;    uuid: 5C67-4BF8&#xA;USB:&#xA;  Hub-1: 1-0:1 info: Hi-speed hub with single TT ports: 4 rev: 2.0&#xA;    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900&#xA;  Hub-2: 1-2:2 info: Hitachi ports: 4 rev: 2.1 speed: 480 Mb/s&#xA;    chip-ID: 045b:0209 class-ID: 0900&#xA;  Device-1: 1-2.4:3 info: Microsoft Xbox One Controller (Firmware 2015)&#xA;    type: <vendor specific="specific"> driver: xpad interfaces: 3 rev: 2.0 speed: 12 Mb/s&#xA;    power: 500mA chip-ID: 045e:02dd class-ID: ff00 serial: <filter>&#xA;  Hub-3: 2-0:1 info: Super-speed hub ports: 4 rev: 3.0 speed: 5 Gb/s&#xA;    chip-ID: 1d6b:0003 class-ID: 0900&#xA;  Hub-4: 2-2:2 info: Hitachi ports: 4 rev: 3.0 speed: 5 Gb/s&#xA;    chip-ID: 045b:0210 class-ID: 0900&#xA;  Hub-5: 3-0:1 info: Hi-speed hub with single TT ports: 1 rev: 2.0&#xA;    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900&#xA;  Hub-6: 3-1:2 info: VIA Labs Hub ports: 4 rev: 2.1 speed: 480 Mb/s&#xA;    power: 100mA chip-ID: 2109:3431 class-ID: 0900&#xA;  Hub-7: 3-1.2:3 info: VIA Labs VL813 Hub ports: 4 rev: 2.1 speed: 480 Mb/s&#xA;    chip-ID: 2109:2813 class-ID: 0900&#xA;  Hub-8: 4-0:1 info: Super-speed hub ports: 4 rev: 3.0 speed: 5 Gb/s&#xA;    chip-ID: 1d6b:0003 class-ID: 0900&#xA;  Hub-9: 4-2:2 info: VIA Labs VL813 Hub ports: 4 rev: 3.0 speed: 5 Gb/s&#xA;    chip-ID: 2109:0813 class-ID: 0900&#xA;  Hub-10: 5-0:1 info: Hi-speed hub with single TT ports: 6 rev: 2.0&#xA;    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900&#xA;  Device-1: 5-1:2 info: Schiit Audio Unison Universal Dac type: Audio&#xA;    driver: snd-usb-audio interfaces: 2 rev: 2.0 speed: 480 Mb/s power: 500mA&#xA;    chip-ID: 30be:1019 class-ID: 0102&#xA;  Device-2: 5-2:3 info: JMTek LLC. Plugable USB Audio Device type: Audio,HID&#xA;    driver: hid-generic,snd-usb-audio,usbhid interfaces: 4 rev: 1.1&#xA;    speed: 12 Mb/s power: 100mA chip-ID: 0c76:120b class-ID: 0300&#xA;    serial: <filter>&#xA;  Device-3: 5-4:4 info: ASUSTek ASUS AI Noise-Cancelling Mic Adapter&#xA;    type: Audio,HID driver: hid-generic,snd-usb-audio,usbhid interfaces: 4&#xA;    rev: 1.1 speed: 12 Mb/s power: 100mA chip-ID: 0b05:194e class-ID: 0300&#xA;    serial: <filter>&#xA;  Hub-11: 5-5:5 info: Genesys Logic Hub ports: 4 rev: 2.0 speed: 480 Mb/s&#xA;    power: 100mA chip-ID: 05e3:0608 class-ID: 0900&#xA;  Device-1: 5-5.3:7 info: Cambridge Silicon Radio Bluetooth Dongle (HCI mode)&#xA;    type: Bluetooth driver: btusb interfaces: 2 rev: 2.0 speed: 12 Mb/s&#xA;    power: 100mA chip-ID: 0a12:0001 class-ID: e001&#xA;  Hub-12: 5-6:6 info: Genesys Logic Hub ports: 4 rev: 2.0 speed: 480 Mb/s&#xA;    power: 100mA chip-ID: 05e3:0608 class-ID: 0900&#xA;  Hub-13: 6-0:1 info: Super-speed hub ports: 4 rev: 3.1 speed: 10 Gb/s&#xA;    chip-ID: 1d6b:0003 class-ID: 0900&#xA;  Hub-14: 7-0:1 info: Hi-speed hub with single TT ports: 6 rev: 2.0&#xA;    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900&#xA;  Device-1: 7-2:2 info: SanDisk Cruzer Micro Flash Drive type: Mass Storage&#xA;    driver: usb-storage interfaces: 1 rev: 2.0 speed: 480 Mb/s power: 200mA&#xA;    chip-ID: 0781:5151 class-ID: 0806 serial: <filter>&#xA;  Device-2: 7-4:3 info: ASUSTek AURA LED Controller type: HID&#xA;    driver: hid-generic,usbhid interfaces: 2 rev: 2.0 speed: 12 Mb/s power: 16mA&#xA;    chip-ID: 0b05:18f3 class-ID: 0300 serial: <filter>&#xA;  Hub-15: 8-0:1 info: Super-speed hub ports: 4 rev: 3.1 speed: 10 Gb/s&#xA;    chip-ID: 1d6b:0003 class-ID: 0900&#xA;  Hub-16: 9-0:1 info: Hi-speed hub with single TT ports: 4 rev: 2.0&#xA;    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900&#xA;  Hub-17: 9-1:2 info: Terminus FE 2.1 7-port Hub ports: 7 rev: 2.0&#xA;    speed: 480 Mb/s power: 100mA chip-ID: 1a40:0201 class-ID: 0900&#xA;  Device-1: 9-1.1:4 info: Sunplus Innovation Gaming mouse [Philips SPK9304]&#xA;    type: Mouse driver: hid-generic,usbhid interfaces: 1 rev: 2.0 speed: 1.5 Mb/s&#xA;    power: 98mA chip-ID: 1bcf:08a0 class-ID: 0301&#xA;  Device-2: 9-1.5:6 info: Microdia Backlit Gaming Keyboard&#xA;    type: Keyboard,Mouse driver: hid-generic,usbhid interfaces: 2 rev: 2.0&#xA;    speed: 12 Mb/s power: 400mA chip-ID: 0c45:652f class-ID: 0301&#xA;  Device-3: 9-1.6:7 info: HUION H420 type: Mouse,HID driver: uclogic,usbhid&#xA;    interfaces: 3 rev: 1.1 speed: 12 Mb/s power: 100mA chip-ID: 256c:006e&#xA;    class-ID: 0300&#xA;  Hub-18: 9-1.7:8 info: Terminus Hub ports: 4 rev: 2.0 speed: 480 Mb/s&#xA;    power: 100mA chip-ID: 1a40:0101 class-ID: 0900&#xA;  Device-1: 9-2:3 info: Microdia USB 2.0 Camera type: Video,Audio&#xA;    driver: snd-usb-audio,uvcvideo interfaces: 4 rev: 2.0 speed: 480 Mb/s&#xA;    power: 500mA chip-ID: 0c45:6367 class-ID: 0102 serial: <filter>&#xA;  Device-2: 9-4:11 info: VKB-Sim &#xA9; Alex Oz 2021 VKBsim Gladiator EVO L&#xA;    type: HID driver: hid-generic,usbhid interfaces: 1 rev: 2.0 speed: 12 Mb/s&#xA;    power: 500mA chip-ID: 231d:0201 class-ID: 0300&#xA;  Hub-19: 10-0:1 info: Super-speed hub ports: 4 rev: 3.1 speed: 10 Gb/s&#xA;    chip-ID: 1d6b:0003 class-ID: 0900&#xA;Sensors:&#xA;  System Temperatures: cpu: 38.0 C mobo: 41.0 C&#xA;  Fan Speeds (RPM): fan-1: 702 fan-2: 747 fan-3: 938 fan-4: 889 fan-5: 3132&#xA;    fan-6: 0 fan-7: 0&#xA;  GPU: device: nvidia screen: :0.0 temp: 49 C fan: 0% device: radeon&#xA;    temp: 53.0 C&#xA;Info:&#xA;  Processes: 842 Uptime: 3h 11m wakeups: 0 Init: systemd v: 252&#xA;  default: graphical tool: systemctl Compilers: gcc: 12.2.1 alt: 10/11&#xA;  clang: 15.0.7 Packages: 2158 pm: pacman pkgs: 2110 libs: 495 tools: pamac,yay&#xA;  pm: flatpak pkgs: 31 pm: snap pkgs: 17 Shell: Bash v: 5.1.16&#xA;  running-in: yakuake inxi: 3.3.25&#xA;</filter></filter></filter></filter></filter></filter></vendor></filter></filter></filter></filter></filter></filter></filter></filter></filter></filter></filter></filter></filter></filter></filter></filter></filter></superuser>

  


• Revision 32594 : plugins en minuscules, et alias pour les noms de sites

  1er novembre 2009, par fil@… — Log

  plugins en minuscules, et alias pour les noms de sites