Merge pull request #976 from SteveGilvarry/FrameImageGen

Dynamically create jpegs from video file for viewing in browser
This commit is contained in:
Andrew Bauer 2015-07-28 10:10:38 -05:00
commit 42e021e652
2 changed files with 84 additions and 2 deletions

View File

@ -28,7 +28,7 @@ $eid = validInt($_REQUEST['eid']);
if ( !empty($_REQUEST['fid']) )
$fid = validInt($_REQUEST['fid']);
$sql = 'SELECT E.*,M.Name AS MonitorName,M.DefaultScale FROM Events AS E INNER JOIN Monitors AS M ON E.MonitorId = M.Id WHERE E.Id = ?';
$sql = 'SELECT E.*,M.Name AS MonitorName,M.DefaultScale,M.VideoWriter FROM Events AS E INNER JOIN Monitors AS M ON E.MonitorId = M.Id WHERE E.Id = ?';
$event = dbFetchOne( $sql, NULL, array($eid) );
if ( !empty($fid) ) {
@ -75,7 +75,13 @@ xhtmlHeaders(__FILE__, translate('Frame')." - ".$event['Id']." - ".$frame['Frame
<h2><?php echo translate('Frame') ?> <?php echo $event['Id']."-".$frame['FrameId']." (".$frame['Score'].")" ?></h2>
</div>
<div id="content">
<p id="image"><?php if ( $imageData['hasAnalImage'] ) { ?><a href="?view=frame&amp;eid=<?php echo $event['Id'] ?>&amp;fid=<?php echo $frame['FrameId'] ?>&amp;scale=<?php echo $scale ?>&amp;show=<?php echo $imageData['isAnalImage']?"capt":"anal" ?>"><?php } ?><img src="<?php echo viewImagePath( $imagePath ) ?>" width="<?php echo reScale( $event['Width'], $event['DefaultScale'], $scale ) ?>" height="<?php echo reScale( $event['Height'], $event['DefaultScale'], $scale ) ?>" alt="<?php echo $frame['EventId']."-".$frame['FrameId'] ?>" class="<?php echo $imageData['imageClass'] ?>"/><?php if ( $imageData['hasAnalImage'] ) { ?></a><?php } ?></p>
<p id="image">
<?php if ( in_array($event['VideoWriter'],array("1","2")) ) { ?>
<img src="?view=image-ffmpeg&eid=<?php echo $event['Id'] ?>&fid=<?php echo $frame['FrameId'] ?>&scale=<?php echo $event['DefaultScale'] ?>" class="<?php echo $imageData['imageClass'] ?>">
<?php } else {
if ( $imageData['hasAnalImage'] ) { ?><a href="?view=frame&amp;eid=<?php echo $event['Id'] ?>&amp;fid=<?php echo $frame['FrameId'] ?>&amp;scale=<?php echo $scale ?>&amp;show=<?php echo $imageData['isAnalImage']?"capt":"anal" ?>"><?php } ?><img src="<?php echo viewImagePath( $imagePath ) ?>" width="<?php echo reScale( $event['Width'], $event['DefaultScale'], $scale ) ?>" height="<?php echo reScale( $event['Height'], $event['DefaultScale'], $scale ) ?>" alt="<?php echo $frame['EventId']."-".$frame['FrameId'] ?>" class="<?php echo $imageData['imageClass'] ?>"/><?php if ( $imageData['hasAnalImage'] ) { ?></a><?php } ?>
<?php } ?>
</p>
<p id="controls">
<?php if ( $frame['FrameId'] > 1 ) { ?>
<a id="firstLink" href="?view=frame&amp;eid=<?php echo $event['Id'] ?>&amp;fid=<?php echo $firstFid ?>&amp;scale=<?php echo $scale ?>"><?php echo translate('First') ?></a>

View File

@ -0,0 +1,76 @@
<?php
//
// ZoneMinder web frame view file, $Date$, $Revision$
// Copyright (C) 2001-2008 Philip Coombes
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
if ( !canView( 'Events' ) )
{
$view = "error";
return;
}
$eid = validInt($_REQUEST['eid']);
if ( !empty($_REQUEST['fid']) )
$fid = validInt($_REQUEST['fid']);
$sql = 'SELECT E.*,M.Name AS MonitorName,M.DefaultScale,M.VideoWriter,M.Orientation FROM Events AS E INNER JOIN Monitors AS M ON E.MonitorId = M.Id WHERE E.Id = ?';
$event = dbFetchOne( $sql, NULL, array($eid) );
if ( !empty($fid) ) {
$sql = 'SELECT * FROM Frames WHERE EventId = ? AND FrameId = ?';
if ( !($frame = dbFetchOne( $sql, NULL, array($eid, $fid) )) )
$frame = array( 'FrameId'=>$fid, 'Type'=>'Normal', 'Score'=>0 );
} else {
$frame = dbFetchOne( 'SELECT * FROM Frames WHERE EventId = ? AND Score = ?', NULL, array( $eid, $event['MaxScore'] ) );
}
$maxFid = $event['Frames'];
$firstFid = 1;
$prevFid = $frame['FrameId']-1;
$nextFid = $frame['FrameId']+1;
$lastFid = $maxFid;
$alarmFrame = $frame['Type']=='Alarm';
if ( isset( $_REQUEST['scale'] ) )
$scale = validInt($_REQUEST['scale']);
else
$scale = max( reScale( SCALE_BASE, $event['DefaultScale'], ZM_WEB_DEFAULT_SCALE ), SCALE_BASE );
$Transpose = '';
if ( $event['VideoWriter'] == "2" ) {
$Rotation = $event['Orientation'];
// rotate right
if ( in_array($event['Orientation'],array("90")))
$Transpose = 'transpose=1,';
// rotate 180 // upside down cam
if ( in_array($event['Orientation'],array("180")))
$Transpose = 'transpose=2,transpose=2,';
// rotate left
if ( in_array($event['Orientation'],array("270")))
$Transpose = 'transpose=2,';
}
$focusWindow = true;
$Scale = 100/$scale;
$fid = $fid - 1;
#$command = 'ffmpeg -v 0 -i '.getEventDefaultVideoPath($event).' -vf "select=gte(selected_n\,'.$fid.'),setpts=PTS-STARTPTS" '.$Transpose.',scale=iw/'.$Scale.':-1" -frames:v 1 -f mjpeg -';
$command = 'ffmpeg -v 0 -i '.getEventDefaultVideoPath($event).' -vf "select=gte(n\\,'.$fid.'),setpts=PTS-STARTPTS,'.$Transpose.'scale=iw/'.$Scale.':-1" -f image2 -';
header('Content-Type: image/jpeg');
system($command);
?>