Video thumbnail generator

Zotlabs/Thumbs/Pdf.php

@@ -19,10 +19,10 @@ class Pdf {
 
 		$istream = fopen($file,'rb');
 		$ostream = fopen($tmpfile,'wb');
-        if($istream && $ostream) {
+		if($istream && $ostream) {
-            pipe_streams($istream,$ostream);
+			pipe_streams($istream,$ostream);
-            fclose($istream);
+			fclose($istream);
-            fclose($ostream);
+			fclose($ostream);
 		}
 
 		$imagick_path = get_config('system','imagick_convert_path');
@@ -42,8 +42,8 @@ class Pdf {
 			else {
 				@rename($outfile,$file . '.thumb');
 			}
-			@unlink($tmpfile);
 		}
+		@unlink($tmpfile);
 	}
 }
 

Zotlabs/Thumbs/Video.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Zotlabs\Thumbs;
+
+
+class Video {
+
+	function MatchDefault($type) {
+		return(($type === 'video') ? true : false );
+	}
+
+	function Thumb($attach,$preview_style,$height = 300, $width = 300) {
+
+		$photo = false;
+
+		$t = explode('/',$attach['filetype']);
+		if($t[1])
+			$extension = '.' . $t[1];
+		else
+			return; 
+
+
+		$file = dbunescbin($attach['content']);
+		$tmpfile = $file . $extension;
+		$outfile = $file . '.jpg';
+
+		$istream = fopen($file,'rb');
+		$ostream = fopen($tmpfile,'wb');
+		if($istream && $ostream) {
+			pipe_streams($istream,$ostream);
+			fclose($istream);
+			fclose($ostream);
+		}
+
+		$imagick_path = get_config('system','imagick_convert_path');
+		if($imagick_path && @file_exists($imagick_path)) {
+			$cmd = $imagick_path . ' ' . escapeshellarg(PROJECT_BASE . '/' . $tmpfile . '[0]') . ' -thumbnail ' . $width . 'x' . $height . ' ' . escapeshellarg(PROJECT_BASE . '/' . $outfile);
+			//  logger('imagick thumbnail command: ' . $cmd);
+
+			exec($cmd);
+
+			if(! file_exists($outfile)) {
+				logger('imagick scale failed.');
+			}
+			else {
+				@rename($outfile,$file . '.thumb');
+			}
+		}
+			
+		@unlink($tmpfile);
+	}
+}
+

include/attach.php

@@ -1636,12 +1636,13 @@ function find_filename_by_hash($channel_id, $attachHash) {
  *
  * @param resource $in File pointer of input
  * @param resource $out File pointer of output
+ * @param int $bufsize size of chunk, default 16384
  * @return number with the size
  */
-function pipe_streams($in, $out) {
+function pipe_streams($in, $out, $bufize = 16384) {
 	$size = 0;
 	while (!feof($in))
-		$size += fwrite($out, fread($in, 16384));
+		$size += fwrite($out, fread($in, $bufsize));
 
 	return $size;
 }