php 操作 ffmpeg 类，实现视频加文字\加水印\裁剪等功能

忘是亡心i 2022-09-16 11:30 532阅读 0赞

<?php
    /**
     * video class
     * written: denny  Date :2020-06-15
     */
    class Mpeg{
        public $sowarePath  = "";
        public $ffmpegCmd  = "ffmpeg ";
        public $ffprobeCmd = "ffprobe ";
        function __construct($sowarePath=''){
            if (!function_exists('exec')){
                echo "exec function not exist!";return;
            }
     
            if($sowarePath){
                $this->sowarePath = $sowarePath;
            }
        }
     
        /**
         * 视频加文字
         * $position = win10不支持中文字体,请添加英文或数组字体,标点符号也不能有
         * $xOffset x坐标的偏移量，$yOffset x坐标的偏移量
         * ffmpeg  -i source.mp4 -vf drawtext=fontcolor=white:fontsize=60:fontfile=arial.ttf:text="hei guy":x=main_w/2-30:y=main_h/2-30:enable='between(t\,2\,6)' out.mp4
         */
        function FontVideo($sourceFile='',$outPutFile='',$string="",$fontFile="",$fontSize=60,$fontColor="red",$xOffset=30,$yOffset=30,$startSecond=0,$endSecond=10){
            if (!file_exists($sourceFile)||!is_file($fontFile)){
                return false;//"file not exist!";
            }
            if(!$endSecond){
                return false;
            }
     
            $fontFile = $fontFile?$fontFile:$this->sowarePath.'simyou.ttf';
            $Symbol = array(
                '"','“',',',"，",'!','！','@','#','$','%','^','&','*','(','（',')','）','+','-','—','>','》',
                '<','《','.','。','?','？','/','、','`','·','-',
            );
            $string = str_replace($Symbol," ",$string);
            $outPut   = $returnVar = "";
            $position = "x=$xOffset:y=$yOffset";
     
            exec($this->sowarePath . "ffmpeg -i $sourceFile -vf drawtext=fontcolor=$fontColor:fontsize=$fontSize:fontfile=$fontFile:text=\"$string\":$position:enable='between(t\,{$startSecond}\,{$endSecond})' $outPutFile",$outPut,$returnVar);
     
            if($returnVar==1){
                return false;//命令执行失败
            }else{
                return $outPutFile;//命令执行成功,返回路径
            }
        }
        /**
         * 视频加水印 $file = ‪D:/source.mp4,$outPutFile=d:/compression.mp4
         * $position = (leftTop,rightTop,leftBottom,rightBottom,middle);左上角,右上角,左下角,右下角
         * $xOffset x坐标的偏移量，$yOffset x坐标的偏移量
         * ffmpeg -i E:\ffmpeg\bin\source_cut_zip.mp4 -i E:\ffmpeg\bin\logo.png -filter_complex "overlay=30:30" E:\ffmpeg\bin\source_cut_zip_logo.mp4
         */
        function WaterVideo($sourceFile='',$outPutFile='',$logoFile="",$position="leftTop",$xOffset=30,$yOffset=30){
            if (!file_exists($sourceFile)||!is_file($logoFile)){
                return false;//"file not exist!";
            }
            $outPut   = $returnVar = "";
            switch($position){
                case 'leftTop':
                    $position = "$xOffset:$yOffset";break;
                case 'rightTop':
                    $position = "main_w-overlay_w-$xOffset:$yOffset";break;
                case 'leftBottom':
                    $position = "$xOffset:main_h-overlay_h-$yOffset";break;
                case 'rightBottom':
                    $position = "main_w-overlay_w-$xOffset:main_h-overlay_h-$yOffset";break;
                case 'middle':
                    $position = "overlay=main_w/2-overlay_w/2:main_h/2-overlay_h/2";break;
                default:
                    $position = "$xOffset:$yOffset";
            }
     
            $H264 = PHP_OS!='WINNT'?" -vcodec libx264 ":' ';
     
            exec($this->sowarePath . "ffmpeg -i $sourceFile -i $logoFile -filter_complex \"overlay=$position\" $H264 $outPutFile",$outPut,$returnVar);
     
            if($returnVar==1){
                return false;//命令执行失败
            }else{
                return $outPutFile;//命令执行成功,返回路径
            }
        }
        /**
         * 视频裁剪 $file = ‪D:/source.mp4,$outPutFile=d:/compression.mp4
         * ffmpeg  -ss 00:00:00 -t 00:01:05 -i E:\ffmpeg\bin\source.mp4 -vcodec copy -acodec copy E:\ffmpeg\bin\source_cut.mp4
         */
        function CutVideo($sourceFile='',$outPutFile='',$startCut='00:00:00',$cutLen='00:01:00'){
            if (!file_exists($sourceFile)){
                return false;//"file not exist!";
            }
            $outPut   = $returnVar = "";
            $start    = $startCut?trim($startCut):$startCut;
            $videoLen = $cutLen?trim($cutLen):$cutLen;
     
            exec($this->sowarePath . "ffmpeg -ss $start -t $videoLen -i $sourceFile -vcodec copy -acodec copy $outPutFile",$outPut,$returnVar);
     
            if($returnVar==1){
                return false;//命令执行失败
            }else{
                return $outPutFile;//命令执行成功,返回路径
            }
        }
        /**
         * 视频压缩 $file = ‪D:\source.mp4,$outPutFile=d:/compression.mp4,$rate码率，网页一般800-1200就ok，$maxRate默认$rate+200
         */
        function VideoCompression($sourceFile='',$outPutFile='',$width=1280,$height=720,$rate=800,$maxRate=1000){
            if (!file_exists($sourceFile)){
                return false;//"file not exist!";
            }
            $outPut=$returnVar = "";
            $width   = intval($width);
            $rate    = intval($rate);
            $maxRate = intval($maxRate)>0?$maxRate:$rate+200;
     
            $H264 = PHP_OS!='WINNT'?" -vcodec libx264 ":' ';
            exec($this->sowarePath . "ffmpeg -i $sourceFile -vf scale=$width:$height -b:v {$rate}k -bufsize {$rate}k -maxrate {$maxRate}k $H264 $outPutFile",$outPut,$returnVar);
     
            if($returnVar==1){
                return false;//命令执行失败
            }else{
                return $outPutFile;//命令执行成功,返回路径
            }
        }
        /**
         * 视频格式转换 $file = ‪D:\jd.mp4,$outPutFile=d:/conversion.avi‪D:\m3c.sql
         */
        function formatConversion($file='',$outPutFile=''){
            if (!file_exists($file)) {
                return false;//"file not exist!";
            }
            $outPut=$returnVar = "";
            exec($this->sowarePath . "ffmpeg -i $file $outPutFile",$outPut,$returnVar);
     
            if($returnVar==1){
                return false;//命令执行失败
            }else{
                return $outPutFile;//命令执行成功,返回路径
            }
        }
        /**
         * 视频提取音频 ‪D:\jd.mp4
         */
        function ExtractSound($file='',$outPutMp3=''){
            if (!is_file($file)) {
                return false;//"file not exist!";
            }
     
            passthru($this->sowarePath . "ffprobe -v quiet -show_format -show_streams -print_format json " . $file);
            $video_info = ob_get_contents();
            ob_end_clean();
     
            $result = json_decode($video_info, true);
        }
        /**
         * ffmpeg获取视频信息 written:Denny Yang
         * */
        function VideoInfo($file=''){
            if(!is_file($file)){
                return false;//"file not exist!";
            }
     
            ob_start();
            passthru($this->sowarePath."ffprobe -v quiet -show_format -show_streams -print_format json ".$file);
            $video_info = ob_get_contents();
            ob_end_clean();
     
            $result = json_decode($video_info,true);
     
            $ret['width'] = isset($result['streams'][0]['width'])?$result['streams'][0]['width']:0;//宽度
            $ret['height'] = isset($result['streams'][0]['height'])?$result['streams'][0]['height']:0;//高度
            $ret['sample_aspect_ratio'] = isset($result['streams'][0]['sample_aspect_ratio'])?$result['streams'][0]['sample_aspect_ratio']:0;//比例
            $ret['display_aspect_ratio']= isset($result['streams'][0]['display_aspect_ratio'])?$result['streams'][0]['display_aspect_ratio']:0;
            $ret['r_frame_rate']        = isset($result['streams'][0]['r_frame_rate'])?$result['streams'][0]['r_frame_rate']:0;//帧数
            $ret['avg_frame_rate']      = isset($result['streams'][0]['avg_frame_rate'])?$result['streams'][0]['avg_frame_rate']:0;//平均帧数
            $ret['video_duration']      = isset($result['streams'][0]['duration'])?$result['streams'][0]['duration']:0;//视频时长
            $ret['video_bit_rate']      = isset($result['streams'][0]['bit_rate'])?$result['streams'][0]['bit_rate']:0;//视频码率
            $ret['audio_bit_rate']      = isset($result['streams'][1]['bit_rate'])?$result['streams'][1]['bit_rate']:0;//声音码率,jd商品5-600kbps
            $ret['filename']            = isset($result['format']['filename'])?$result['format']['filename']:0;//文件名称
            $ret['nb_streams']          = isset($result['format']['nb_streams'])?$result['format']['nb_streams']:0;
            $ret['format_name']         = isset($result['format']['format_name'])?$result['format']['format_name']:0;//格式
            $ret['start_time']          = isset($result['format']['start_time'])?$result['format']['start_time']:0;//开始时间
            $ret['duration']            = isset($result['format']['duration'])?$result['format']['duration']:0;//时长
            $ret['size']                = isset($result['format']['size'])?$result['format']['size']:0;//文件大小k
     
            return $ret;
        }
    }