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애니메이션 GIF 체크 코드 추가

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chicpro
2013-02-20 11:09:58 +09:00
parent 3baa346376
commit 3ca6b9c377
1 changed files with 54 additions and 15 deletions
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69
lib/thumbnail.lib.php
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@ -11,23 +11,22 @@ function it_img_thumb($filename, $filepath, $thumb_width, $thumb_height, $is_cre
// 게시글보기 썸네일 생성 // 게시글보기 썸네일 생성
function get_view_thumbnail($contents) function get_view_thumbnail($contents)
{ {
if(!G4_IS_MOBILE) global $board;
return $contents;
$dvc_width = intval($_COOKIE['device_width']); $dvc_width = intval($_COOKIE['device_width']);
if(!$dvc_width) if(G4_IS_MOBILE && $dvc_width) {
return $contents; // 썸네일 width 설정
$thumb_width = 300;
// 썸네일 width 설정 if($dvc_width >= 1000) {
$thumb_width = 320; return $contents;
} else if($dvc_width >= 760 && $dvc_width < 1000) {
if($dvc_width >= 1000) { $thumb_width = 760;
return $contents; } else if($dvc_width >= 480 && $dvc_width < 760) {
} else if($dvc_width >= 760 && $dvc_width < 1000) { $thumb_width = 480;
$thumb_width = 760; }
} else if($dvc_width >= 480 && $dvc_width < 760) { } else {
$thumb_width = 480; $thumb_width = $board['bo_image_width'];
} }
// $contents 중 img 태그 추출 // $contents 중 img 태그 추출
@ -45,12 +44,25 @@ function get_view_thumbnail($contents)
if(empty($size)) if(empty($size))
continue; continue;
// 원본 width가 thumb_width보다 작다면
if($size[0] <= $thumb_width)
continue;
// Animated GIF 체크
$is_animated = false;
if($size[2] == 1) {
$is_animated = is_animated_gif($srcfile);
}
$thumb_height = round(($thumb_width * $size[1]) / $size[0]); $thumb_height = round(($thumb_width * $size[1]) / $size[0]);
$filename = basename($srcfile); $filename = basename($srcfile);
$filepath = dirname($srcfile); $filepath = dirname($srcfile);
// 썸네일 생성 // 썸네일 생성
$thumb_file = thumbnail($filename, $filepath, $filepath, $thumb_width, $thumb_height, false); if(!$is_animated)
$thumb_file = thumbnail($filename, $filepath, $filepath, $thumb_width, $thumb_height, false);
else
$thumb_file = $filename;
$img_tag = $matchs[0][$i]; $img_tag = $matchs[0][$i];
$thumb_tag = str_replace($filename, $thumb_file, $img_tag); $thumb_tag = str_replace($filename, $thumb_file, $img_tag);
@ -111,6 +123,12 @@ function thumbnail($filename, $source_path, $target_path, $thumb_width, $thumb_h
return basename($thumb_file); return basename($thumb_file);
} }
// Animated GIF 체크
if($size[2] == 1) {
if(is_animated_gif($source_file))
return basename($source_file);
}
$is_imagecopyresampled = false; $is_imagecopyresampled = false;
$is_large = false; $is_large = false;
@ -149,4 +167,25 @@ function thumbnail($filename, $source_path, $target_path, $thumb_width, $thumb_h
return basename($thumb_file); return basename($thumb_file);
} }
function is_animated_gif($filename) {
if(!($fh = @fopen($filename, 'rb')))
return false;
$count = 0;
//an animated gif contains multiple "frames", with each frame having a
//header made up of:
// * a static 4-byte sequence (\x00\x21\xF9\x04)
// * 4 variable bytes
// * a static 2-byte sequence (\x00\x2C) (some variants may use \x00\x21 ?)
// We read through the file til we reach the end of the file, or we've found
// at least 2 frame headers
while(!feof($fh) && $count < 2) {
$chunk = fread($fh, 1024 * 100); //read 100kb at a time
$count += preg_match_all('#\x00\x21\xF9\x04.{4}\x00(\x2C|\x21)#s', $chunk, $matches);
}
fclose($fh);
return $count > 1;
}
?> ?>