Revision: 46057
Author: markcdeckert
Date: 2009-01-23 01:47:09 +0000 (Fri, 23 Jan 2009)
Log Message:
-----------
first revision
Added Paths:
-----------
trunk/extensions/MetavidWiki/maintenance/video_ocr_thumb_insert.php
Added: trunk/extensions/MetavidWiki/maintenance/video_ocr_thumb_insert.php
===================================================================
--- trunk/extensions/MetavidWiki/maintenance/video_ocr_thumb_insert.php
(rev 0)
+++ trunk/extensions/MetavidWiki/maintenance/video_ocr_thumb_insert.php
2009-01-23 01:47:09 UTC (rev 46057)
@@ -0,0 +1,121 @@
+<?php
+/*
+ * video_ocr_thumb_insert.php Created on January, 2009
+ * based on ogg_thumb_insert
+ * All Metavid Wiki code is Released under the GPL2
+ * for more info visit http://metavid.org/wiki/Code
+ *
+ * @author Michael Dale, aphid
+ * @email [email protected], [email protected]
+ * @url http://metavid.org
+ */
+
+$cur_path = $IP = dirname( __FILE__ );
+// include commandLine.inc from the mediaWiki maintance dir:
+require_once ( '../../../maintenance/commandLine.inc' );
+require_once ( 'metavid2mvWiki.inc.php' );
+
+// include util functions:
+require_once( 'maintenance_util.inc.php' );
+
+if ( count( $args ) == 0 || isset ( $options['help'] ) ) {
+ print'
+USAGE
+ php ogg_thumb_insert.php stream_name filename interval
+
+EXAMPLE we get a frame every 5 seconds from input file stream.mpeg:
+ video2image2mvwiki.php stream_name stream.ogg 5
+
+DURATION is scraped from ffmpeg
+
+Notes:
+ if possible you want to use the source footage rather than the ogg to
generate the thumbnails (ie the mpeg2 or dv)
+';
+exit();
+
+}
+
+
+//maybe we derive stream name from filename? one less thing to think about.
+$stream_name = $args[0];
+$filename = $args[1];
+$interval = $args[2];
+
+
+$MV_Stream = MV_Stream::newStreamByName( $stream_name );
+$stream_id = $MV_Stream->getStreamId();
+
+$filedir = '../stream_images/' . MV_StreamImage::getRelativeImagePath(
$stream_id );
+$workingdir = '/metavid/raw_mpeg';
+$duration = getDuration($filename);
+
+$ocrfile = "";
+
+
+//gets duration from ffmpeg
+
+$dbw = $dbr = wfGetDB( DB_MASTER );
+for ( $i = 0; $i < $duration; $i += $interval ) {
+ shell_exec( "ffmpeg -ss $i -i {$filename} -vcodec mjpeg -vframes 1 -an -f
rawvideo -y {$filedir}/{$i}.jpg 2>&1" );
+ if(is_file("{$filedir}/{$i}.jpg")){
+ //$dbw->query( "INSERT INTO `mv_stream_images` (`stream_id`, `time`)
VALUES ($stream_id, $i)" );
+ shell_exec("convert $filedir/$i.jpg -crop 457x30+63+358
$workingdir/temp.ocr.tif && convert $workingdir/temp.ocr.tif -resize 300%
-level 10%,1,20% -monochrome +compress $workingdir/temp.ocr.tif");
+ shell_exec("tesseract $workingdir/temp.ocr.tif $workingdir/ocrtemp nobatch
lettersonly 2>&1");
+ $ocr = shell_exec("tail $workingdir/ocrtemp.txt") ." at " .sec2hms($i) ."
\n";
+ echo $ocr;
+ $ocrfile .= $ocr;
+ }else{
+ print "failed to create file: {$filedir}/{$i}.jpg \n";
+ }
+}
+
+$ocrfileloc = "$workingdir/$stream_name.ocr";
+$fh = fopen($ocrfileloc, 'w') or die ("can't write ocr file");
+fwrite($fh, $ocrfile);
+fclose($fh);
+
+function getDuration($filename)
+{
+ $string = shell_exec( "ffmpeg -i $filename 2>&1");
+ $pattern = "/Duration: ([0-9])([0-9]):([0-9])([0-9]):([0-9])([0-9])/";
+ preg_match($pattern, $string, $reg_array);
+ $result = $reg_array[0];
+ $hms = explode(" ", $result);
+ $durationhms = $hms[1];
+ echo "duration is $durationhms \n";
+ $durarray = explode(":", $durationhms);
+ return ($durarray[0]* 3600) + ($durarray[1]* 60) + $durarray[2];
+}
+
+function sec2hms ($sec, $padHours = false) {
+
+ $hms = "";
+
+ // there are 3600 seconds in an hour, so if we
+ // divide total seconds by 3600 and throw away
+ // the remainder, we've got the number of hours
+ $hours = intval(intval($sec) / 3600);
+
+ // add to $hms, with a leading 0 if asked for
+ $hms .= ($padHours)
+ ? str_pad($hours, 2, "0", STR_PAD_LEFT). ':'
+ : $hours. ':';
+
+ // dividing the total seconds by 60 will give us
+ // the number of minutes, but we're interested in
+ // minutes past the hour: to get that, we need to
+ // divide by 60 again and keep the remainder
+ $minutes = intval(($sec / 60) % 60);
+
+ // then add to $hms (with a leading 0 if needed)
+ $hms .= str_pad($minutes, 2, "0", STR_PAD_LEFT). ':';
+
+ // seconds are simple - just divide the total
+ // seconds by 60 and keep the remainder
+ $seconds = intval($sec % 60);
+
+ // add to $hms, again with a leading 0 if needed
+ $hms .= str_pad($seconds, 2, "0", STR_PAD_LEFT);
+
+ return $hms;
+}
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