PHP调用ffmpeg对视频截图并拼接脚本
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2022-11-16 09:56:16
php脚本调用ffmpeg对视频截图并拼接,供大家参考,具体内容如下
目前支持mkv,mpg,mp4等常见格式的视频,其他格式有待测试
12p 一张截图平均生成...
php脚本调用ffmpeg对视频截图并拼接,供大家参考,具体内容如下
目前支持mkv,mpg,mp4等常见格式的视频,其他格式有待测试
12p 一张截图平均生成时间 1.64s 100个视频,大概需要2分半左右
9p 一张截图平均生成时间 1.13s 100个视频,大概需要2分钟左右
6p 一张截图平均生成时间 0.86s 100个视频,大概需要1分半左右
3p 一张截图平均生成时间 0.54s 100个视频,大概需要1分钟左右
<?php define('ds', directory_separator); date_default_timezone_set("asia/shanghai"); class fileloader { //路径变量 private $rootdir = ''; private $tmp = "tmp"; //tmp 目录 private $source = "mpg"; //source 目录 private $destination = "screenshoot"; //目标截图路径 private $emptyimagename = "empty.jpg"; //合成的背景图 //文件数组 private $maxshoots = 12; //最大的截图数 private $videoinfo = null; private $files = array(); //文件数 private $filearray = array(); private $extensionarray = array("mpg","mkv","mp4","avi","3gp","mov"); //支持的格式 private $timearray = array("00:00:10","00:00:20","00:00:30","00:01:00","00:01:30","00:02:00","00:02:30","00:03:00","00:03:30","00:03:40","00:03:50","00:04:00"); //统计变量 private $timestart = 0; private $timeend = 0; private $filecount = 0; private $successcount = 0; private $failedcount = 0; /** * 初始化信息 */ function __construct() { file_put_contents("log.txt",""); $this->rootdir = dirname(__file__); $count = count($this->timearray); for($i=1;$i<=$count;$i++) { $ii = $i-1; $this->filearray[$ii] = $this->tmp.ds.$i.".jpg"; } } /** * 当前时间,精确到小数点 */ private static function microtime_float() { list($usec, $sec)= explode(" ", microtime()); return ((float)$usec + (float)$sec); } /** * 00:00:00 时间转秒 */ private static function timetosec($time) { $p = explode(':',$time); $c = count($p); if ($c>1) { $hour = intval($p[0]); $minute = intval($p[1]); $sec = intval($p[2]); } else { throw new exception('error time format'); } $secs = $hour * 3600 + $minute * 60 + $sec; return $secs; } /** * 00:00:00 时间转秒 */ private static function sectotime($time) { $hour = floor($time/3600); $min = floor(($time - $hour * 3600)/60); $sec = $time % 60; $timestr = sprintf("%02d:%02d:%02d",$hour,$min,$sec); return $timestr; } /** * 获取全部文件 */ private function getfiles($dir) { $files = array(); $dir = rtrim($dir, "/\\") . ds; $dh = opendir($dir); if ($dh == false) { return $files; } while (($file = readdir($dh)) != false) { if ($file{0} == '.') { continue; } $path = $dir . $file; if (is_dir($path)) { $files = array_merge($files, $this->getfiles($path)); } elseif (is_file($path)) { $files[] = $path; } } closedir($dh); return $files; } /** * 搜索路径 */ public function searchdir($sourcepath = null) { $this->timestart = $this->microtime_float(); if ($sourcepath) { $this->rootdir = $sourcepath; } if (file_exists($this->rootdir) && is_dir($this->rootdir)) { $this->files = $this->getfiles($this->rootdir.ds.$this->source); } $this->filecount = count($this->files); foreach ($this->files as $path) { $fi = pathinfo($path); $flag = array_search(strtolower($fi['extension']),$this->extensionarray); if (!$flag) continue; $this->getscreenshoot(basename($path)); } $this->timeend = $this->microtime_float(); $time = $this->timeend - $this->timestart; if($this->filecount > 0) { $str = sprintf("[total]: cost time:%8s | total file:[%d] | successed:[%d] | failed:[%d] | speed:%.2fs per file\n",$this->sectotime($time),$this->filecount,$this->successcount,$this->failedcount,$time/$this->filecount); file_put_contents("log.txt",$str,file_append); } else { $str = sprintf("[total]: cost time:%8s | total file:[%d] | successed:[%d] | failed:[%d] | speed:%.2fs per file\n",$this->sectotime($time),$this->filecount,$this->successcount,$this->failedcount,0); file_put_contents("log.txt",$str,file_append); } } /** * 获取视频信息 */ private function getvideoinfo($file){ $re = array(); exec(".".ds."ffmpeg -i {$file} 2>&1", $re); $info = implode("\n", $re); if(preg_match("/no such file or directory/i", $info)) { return false; } if(preg_match("/invalid data/i", $info)){ return false; } $match = array(); preg_match("/\d{2,}x\d+/", $info, $match); list($width, $height) = explode("x", $match[0]); $match = array(); preg_match("/duration:(.*?),/", $info, $match); if($match) { $duration = date("h:i:s", strtotime($match[1])); }else { $duration = null; } $match = array(); preg_match("/bitrate:(.*kb\/s)/", $info, $match); $bitrate = $match[1]; if(!$width && !$height && !$duration && !$bitrate){ return false; }else{ return array( "file" => $file, "width" => $width, "height" => $height, "duration" => $duration, "bitrate" => $bitrate, "secends" => $this->timetosec($duration) ); } } /** * 设置截图时间 */ private function setshootsecends($secends,$usedefault = no) { if($usedefault) { if($secends<18) { $time = 1; }else { $time = 5; } $range = floor(($secends - $time)/ ($this->maxshoots)); if ($range < 1) { $range = 1; } $this->timearray = array(); for($i=0;$i<$this->maxshoots;$i++) { $this->timearray[$i] = $this->sectotime($time); $time = $time + $range; if ($time > $secends) break; } } } /** * 拼接图片 */ private function getfixedphoto($filename) { $target = $this->rootdir.ds.$this->emptyimagename;//背景图片 $target_img = imagecreatefromjpeg($target); $source= array(); foreach ($this->filearray as $k=>$v) { $source[$k]['source'] = imagecreatefromjpeg($v); $source[$k]['size'] = getimagesize($v); } $tmpx=5; $tmpy=5;//图片之间的间距 for ($i=0; $i< count($this->timearray); $i++) { imagecopy($target_img,$source[$i]['source'],$tmpx,$tmpy,0,0,$source[$i]['size'][0],$source[$i]['size'][1]); $target_img = $this->settimelabel($target_img,$tmpx,$tmpy,$source[$i]['size'][0],$source[$i]['size'][1],$this->timearray[$i]); $tmpx = $tmpx+ $source[$i]['size'][0]; $tmpx = $tmpx+5; if(($i+1) %3 == 0){ $tmpy = $tmpy+$source[$i]['size'][1]; $tmpy = $tmpy+5; $tmpx=5; } } $target_img = $this->setvideoinfolabel($target_img,$tmpx,$tmpy,$this->videoinfo); imagejpeg($target_img,$this->rootdir.ds.$this->destination.ds.$filename.'.jpg'); } /** * 设置时间刻度标签 */ private function settimelabel($image,$image_x,$image_y,$image_w,$image_h,$img_text) { imagealphablending($image,true); //设定颜色 $color=imagecolorallocate($image,255,255,255); $ttf_im=imagettfbbox(30 ,0,"arial.ttf",$this->img_text); $w = $ttf_im[2] - $ttf_im[6]; $h = $ttf_im[3] - $ttf_im[7]; unset($ttf_im); $txt_y =$image_y+$image_h+$h-5; $txt_x =$image_x+$w+5; imagettftext($image,30,0,$txt_x,$txt_y,$color,"arial.ttf",$img_text); return $image; } /** * 设置视频信息标签 */ private function setvideoinfolabel($image,$txt_x,$txt_y,$videoinfo) { imagealphablending($image,true); $color=imagecolorallocate($image,0,0,0); imagettftext($image,32,0,100,2000+30,$color,"fzlthjw.ttf","filename:".basename($videoinfo["file"])); imagettftext($image,32,0,1600,2000+30,$color,"arial.ttf","size:".$videoinfo["width"]."x".$videoinfo["height"]); imagettftext($image,32,0,100,2000+120,$color,"arial.ttf","duration:".$videoinfo["duration"]); imagettftext($image,32,0,1600,2000+120,$color,"arial.ttf","bitrate:".$videoinfo["bitrate"]); return $image; } /** * 屏幕截图 */ public function getscreenshoot($filename) { $fi = pathinfo($filename); $this->videoinfo = $this->getvideoinfo($this->rootdir.ds.$this->source.ds.$filename); if($this->videoinfo) { $this->setshootsecends($this->videoinfo["secends"]); for ($i=0; $i< count($this->timearray); $i++ ) { $cmd=".".ds."ffmpeg -ss ". $this->timearray[$i] ." -i ". $this->rootdir.ds.$this->source.ds.$filename ." -y -f image2 -s 720*480 -vframes 1 ".$this->rootdir.ds.$this->filearray[$i]; exec($cmd,$out,$status); } $this->getfixedphoto($filename); $str = sprintf("[%s]:ok...........[%s][%2dp]%-30s\n",date("y-m-d h:i:s",time()),$this->videoinfo["duration"],count($this->timearray),$filename); file_put_contents("log.txt",$str,file_append); $this->successcount += 1; }else { $str = sprintf("[%s]:failed.................................[%s][%2dp]%-30s\n",date("y-m-d h:i:s",time()),$this->videoinfo["duration"],count($this->timearray),$filename); file_put_contents("log.txt",$str,file_append); $this->failedcount += 1; } } /** * todo: * 截取图片, * 需要配置ffmpeg-php,比较麻烦, * 但是这个类确实挺好用的。 */ public function getscreenshoot2($filename) { if(extension_loaded('ffmpeg')){//判断ffmpeg是否载入 $mov = new ffmpeg_movie($this->rootdir.ds.$this->source.ds.$filename);//视频的路径 $count = $mov->getframecount(); $ff_frame = $mov->getframe(floor($count/2)); if($ff_frame) { $gd_image = $ff_frame->togdimage(); $img=$this->rootdir.ds."test.jpg";//要生成图片的绝对路径 imagejpeg($gd_image, $img);//创建jpg图像 imagedestroy($gd_image);//销毁一图像 } }else{ echo "ffmpeg没有载入"; } } } $fileloader = new fileloader(); $fileloader->searchdir(); ?>
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