php读取flash文件高宽帧数背景颜色代码
<?php /* 示例: $file = '/data/ad_files/5/5.swf'; $flash = new flash(); $flash = $flash->getswfinfo($file); echo " 文件的宽高是:".$flash["width"].":".$info["height"]; echo " 文件版本是".$flash["version"]; echo " 文件帧数量是".$flash["framecount"]; echo " 文件帧速率是".$flash["framerate"]; echo " 文件背景颜色是".$flash["bgcolor"]; */ class flash { //是否返回背景色 public $need_back_color = false ; //是否返回版本 public $need_version = false ; //是否返回帧速率 public $need_framerate = false ; //是否返回帧数量 public $need_framecount = false ; public function __construct() { } public function getswfinfo( $filename ) { if ( file_exists ( $filename ) ) { //echo "文件的修改时间:".date("m d y h:i:s.", filemtime($filename))." "; } else { //echo "目标文件不存在!"; return array ( "error" => $filename ) ; } //打开文件 $rs = fopen ( $filename , "r" ); //读取文件的数据 $str = fread ( $rs , filesize ( $filename ) ) ; /// if ( $str [0] == "f" ) { //echo " 文件已是解压缩的文件:"; } else { $first = substr ( $str ,0,8); $last = substr ( $str ,8); // $last = gzuncompress( $last ); // $str = $first . $last ; $str [0] = "f" ; //echo " 解压缩后的文件信息:"; } $info = $this ->getinfo( $str ); fclose ( $rs ) ; return $info ; } private function mydecbin( $str , $index ) { $fbin = decbin (ord( $str [ $index ])); while ( strlen ( $fbin )<8) $fbin = "0" . $fbin ; return $fbin ; } private function colorhex( $data ) { $tmp = dechex ( $data ); if ( strlen ( $tmp )<2 ) { $tmp = '0' . $tmp ; } return $tmp ; } private function getinfo( $str ) { //换算成二进制 $fbin = $this ->mydecbin( $str , 8 ) ; //计算rec的单位长度 $slen = bindec ( substr ( $fbin , 0 , 5 ) ); //计算rec所在的字节 $recsize = $slen * 4 + 5 ; $recsize = ceil ( $recsize / 8 ) ; //rec的二进制 $recbin = $fbin ; for ( $i = 9 ; $i < $recsize + 8 ; $i ++ ) { $recbin .= $this ->mydecbin( $str , $i ); } //rec数据 $rec = array (); for ( $i = 0 ; $i < 4 ; $i ++ ) { $rec [] = bindec ( substr ( $recbin , 5 + $i * $slen , $slen ) ) / 20 ; } if ( $this ->need_back_color ) { //背景颜色 for ( $i = $recsize + 12 ; $i < strlen ( $str ) ; $i ++ ) { if ( ord( $str [ $i ] ) == 67 && ord( $str [ $i +1] ) == 2 ) { $bgcolor = $this ->colorhex(ord( $str [ $i +2])). $this ->colorhex(ord( $str [ $i +3])). $this ->colorhex(ord( $str [ $i +4])); break ; } } } if ( $this ->need_version ) { //版本 $version = ord( $str [3] ); } if ( $this ->need_framerate ) { //帧速率 $framerate = ord( $str [ $recsize + 8] ) / 256 + ord( $str [ $recsize + 9] ) ; } if ( $this ->need_framecount ) { //帧数量 $framecount = ord( $str [ $recsize + 11] ) * 256 + ord( $str [ $recsize + 10] ); //开源代码phpfensi.com } return array ( "bgcolor" => $bgcolor , "version" => $version , "framerate" => $framerate , "framecount" => $framecount , 'width' => $rec [1], 'height' => $rec [3] ); } } ?>查看更多关于php读取flash文件高宽帧数背景颜色代码 - php高级应的详细内容...
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