Use a memory table called Monitor_Status to store FPS and Status info for Monitors. This is to reduce locking and updates on the main Monitors table.

db/zm_create.sql.in

@@ -608,9 +608,6 @@ CREATE TABLE `Monitors` (
   `WebColour` varchar(32) NOT NULL default 'red',
   `Exif` tinyint(1) unsigned NOT NULL default '0',
   `Sequence` smallint(5) unsigned default NULL,
-  `Status`  enum('Unknown','NotRunning','Running','NoSignal','Signal') NOT NULL default 'Unknown',
-  `CaptureFPS`  DECIMAL(10,2) NOT NULL default 0,
-  `AnalysisFPS`  DECIMAL(5,2) NOT NULL default 0,
   `TotalEvents` int(10) unsigned,
   `TotalEventDiskSpace` bigint unsigned,
   `HourEvents` int(10) unsigned,
@@ -629,6 +626,14 @@ CREATE TABLE `Monitors` (
 
 CREATE INDEX `Monitors_ServerId_idx` ON `Monitors` (`ServerId`);
 
+DROP TABLE IF EXISTS `Monitor_Status`;
+CREATE TABLE `Monitor_Status` (
+  `Id` int(10) unsigned NOT NULL,
+  `Status`  enum('Unknown','NotRunning','Running','NoSignal','Signal') NOT NULL default 'Unknown',
+  `CaptureFPS`  DECIMAL(10,2) NOT NULL default 0,
+  `AnalysisFPS`  DECIMAL(5,2) NOT NULL default 0,
+  PRIMARY KEY (`Id`)
+) ENGINE=MEMORY;
 --
 -- Table structure for table `States`
 -- PP - Added IsActive to track custom run states

db/zm_update-1.31.28.sql

@@ -0,0 +1,57 @@
+SET @s = (SELECT IF(
+    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema = DATABASE()
+      AND table_name = 'Monitor_Status'
+    ) > 0
+    ,
+    "SELECT 'Monitor_Status Already exists'",
+    "
+CREATE TABLE `Monitor_Status` (
+  `Id` int(10) unsigned NOT NULL,
+  `Status`  enum('Unknown','NotRunning','Running','NoSignal','Signal') NOT NULL default 'Unknown',
+  `CaptureFPS`  DECIMAL(10,2) NOT NULL default 0,
+  `AnalysisFPS`  DECIMAL(5,2) NOT NULL default 0,
+  PRIMARY KEY (`Id`)
+) ENGINE=MEMORY"
+    ));
+
+PREPARE stmt FROM @s;
+EXECUTE stmt;
+
+SET @s = (SELECT IF(
+    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema = DATABASE()
+      AND table_name = 'Monitors'
+      AND column_name = 'Status'
+    ) > 0
+    ,
+    "ALTER TABLE Monitors DROP COLUMN Status"
+    "SELECT 'Monitor Status already removed.'",
+    ));
+
+PREPARE stmt FROM @s;
+EXECUTE stmt;
+
+SET @s = (SELECT IF(
+    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema = DATABASE()
+      AND table_name = 'Monitors'
+      AND column_name = 'CaptureFPS'
+    ) > 0
+    ,
+    "ALTER TABLE Monitors DROP COLUMN CaptureFPS"
+    "SELECT 'Monitor CaptureFPS already removed.'",
+    ));
+
+PREPARE stmt FROM @s;
+EXECUTE stmt;
+
+SET @s = (SELECT IF(
+    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema = DATABASE()
+      AND table_name = 'Monitors'
+      AND column_name = 'AnalysisFPS'
+    ) > 0
+    ,
+    "ALTER TABLE Monitors DROP COLUMN AnalysisFPS"
+    "SELECT 'Monitor AnalysisFPS already removed.'",
+    ));
+
+PREPARE stmt FROM @s;
+EXECUTE stmt;

src/zm_ffmpeg_camera.cpp

@@ -738,7 +738,8 @@ int FfmpegCamera::CaptureAndRecord( Image &image, timeval recording, char* event
   int ret;
   static char errbuf[AV_ERROR_MAX_STRING_SIZE];
   
-  // If the reopen thread has a value, but mCanCapture != 0, then we have just reopened the connection to the ffmpeg device, and we can clean up the thread.
+  // If the reopen thread has a value, but mCanCapture != 0, then we have just reopened
+  // the connection to the ffmpeg device, and we can clean up the thread.
   if ( mReopenThread != 0 ) {
     void *retval = 0;
 
@@ -751,7 +752,6 @@ int FfmpegCamera::CaptureAndRecord( Image &image, timeval recording, char* event
     mReopenThread = 0;
   }
 
-
   int frameComplete = false;
   while ( ! frameComplete ) {
     av_init_packet( &packet );
@@ -836,6 +836,7 @@ dumpPacket(&packet);
               startTime,
               this->getMonitor());
         } // end if record_audio
+
         if ( ! videoStore->open() ) {
           delete videoStore;
           videoStore = NULL;

src/zm_monitor.cpp

@@ -1205,7 +1205,7 @@ bool Monitor::Analyse() {
     fps = double(fps_report_interval)/(now.tv_sec - last_fps_time);
     Info( "%s: %d - Analysing at %.2f fps", name, image_count, fps );
     static char sql[ZM_SQL_SML_BUFSIZ];
-    snprintf( sql, sizeof(sql), "UPDATE Monitors SET AnalysisFPS = '%.2lf' WHERE Id = '%d'", fps, id );
+    snprintf( sql, sizeof(sql), "INSERT INTO Monitor_Status (Id,AnalysisFPS) VALUES (%d, %.2lf) ON DUPLICATE KEY UPDATE AnalysisFPS = %.2lf", id, fps, fps );
     if ( mysql_query( &dbconn, sql ) ) {
       Error( "Can't run query: %s", mysql_error( &dbconn ) );
     }
@@ -3022,7 +3022,7 @@ Debug(4, "Return from Capture (%d)", captureResult);
         Info( "%s: images:%d - Capturing at %.2lf fps", name, image_count, fps );
         last_fps_time = now;
         static char sql[ZM_SQL_SML_BUFSIZ];
-        snprintf( sql, sizeof(sql), "UPDATE Monitors SET CaptureFPS='%.2lf' WHERE Id=%d", fps, id );
+        snprintf( sql, sizeof(sql), "INSERT INTO Monitor_Status (Id,CaptureFPS) VALUES (%d, %.2lf) ON DUPLICATE KEY UPDATE CaptureFPS = %.2lf", id, fps, fps );
         if ( mysql_query( &dbconn, sql ) ) {
           Error( "Can't run query: %s", mysql_error( &dbconn ) );
         }

src/zmc.cpp

@@ -223,7 +223,7 @@ int main(int argc, char *argv[]) {
   Info("Starting Capture version %s", ZM_VERSION);
   static char sql[ZM_SQL_SML_BUFSIZ];
   for ( int i = 0; i < n_monitors; i ++ ) {
-    snprintf( sql, sizeof(sql), "UPDATE Monitors SET Status = 'Running' WHERE Id = '%d'", monitors[i]->Id() );
+    snprintf( sql, sizeof(sql), "REPLACE INTO  Monitor_Status (Id, Status ) VALUES ('%d','Running')", monitors[i]->Id() );
     if ( mysql_query( &dbconn, sql ) ) {
       Error( "Can't run query: %s", mysql_error( &dbconn ) );
     }

version

@@ -1 +1 @@
-1.31.27
+1.31.28

web/skins/classic/views/_monitor_filters.php

@@ -89,7 +89,7 @@ if ( ! is_array( $selected_monitor_ids ) ) {
     $values += $ids;
   }
 
-  $sql = 'SELECT * FROM Monitors' . ( count($conditions) ? ' WHERE ' . implode(' AND ', $conditions ) : '' ).' ORDER BY Sequence ASC';
+  $sql = 'SELECT *,S.Status AS Status, S.CaptureFPS AS CaptureFPS FROM Monitors AS M LEFT JOIN Monitor_Status AS S ON S.Id=M.Id ' . ( count($conditions) ? ' WHERE ' . implode(' AND ', $conditions ) : '' ).' ORDER BY Sequence ASC';
   $monitors = dbFetchAll( $sql, null, $values );
   $displayMonitors = array();
   $monitors_dropdown = array();

web/skins/classic/views/console.php

@@ -215,7 +215,18 @@ for( $monitor_i = 0; $monitor_i < count($displayMonitors); $monitor_i += 1 ) {
             <td class="colName"><a <?php echo (canView('Stream') && $monitor['Function'] != 'None' ? 'href="?view=watch&amp;mid='.$monitor['Id'].'">' : '>') . $monitor['Name'] ?></a></td>
             <td class="colFunction">
               <?php echo makePopupLink( '?view=function&amp;mid='.$monitor['Id'], 'zmFunction', 'function', '<span class="'.$fclass.'">'.translate('Fn'.$monitor['Function']).( empty($monitor['Enabled']) ? ', disabled' : '' ) .'</span>', canEdit( 'Monitors' ) ) ?><br/>
-<?php echo $monitor['CaptureFPS'] . ( ( $monitor['Function'] == 'Mocord' or $monitor['Function'] == 'Modect' ) ? ' / ' . $monitor['AnalysisFPS'] : '' ) . ' FPS' ?>
+<?php 
+  $fps_string = '';
+  if ( isset($monitor['CaptureFPS']) ) {
+    $fps_string .= $monitor['CaptureFPS'];
+  }
+
+  if ( isset($monitor['AnalysisFPS']) and ( $monitor['Function'] == 'Mocord' or $monitor['Function'] == 'Modect' ) ) {
+    $fps_string .= ' / ' . $monitor['AnalysisFPS'];
+  }
+  if ($fps_string) $fps_string .= ' FPS';
+  echo $fps_string;
+?>
               </td>
 <?php
   if ( count($servers) ) { ?>