繁体   English   中英

php 视频上传和 ffmpeg 不会创建缩略图

[英]php video upload and ffmpeg won't create a thumbnail

我正在尝试为我的项目制作视频上传功能。 但是我对ffmpeg部分有问题。 ffmpeg已经安装在我的服务器上。 但我无法获得任何缩略图。 我尝试使用以下代码创建缩略图:

$videoa = exec("/usr/bin/ffmpeg  -i $videoUrlp.flv -f flv -s 650x390 $videoUrlp.mp4 2>&1");
$videob = exec("/usr/bin/ffmpeg  -i $videoUrlp.mp4 -vcodec png -ss 00:00:5 -s 650x390 -vframes 1 -an -f rawvideo $videoUrlp.png");

但是当我使用var_dump(); 对于var_dump($videoa); var_dump($videob);

string(74) " https://mywebsite.com/uploads/video/ey1kXNew_video.flv : 输入/输出错误" string(0) ""

另外,如果我像这样使用shell_exec

$videoa = shell_exec("/usr/bin/ffmpeg  -i $videoUrlp.flv -f flv -s 650x390 $videoUrlp.mp4");
$videob = shell_exec("/usr/bin/ffmpeg  -i $videoUrlp.mp4 -vcodec png -ss 00:00:5 -s 650x390 -vframes 1 -an -f rawvideo $videoUrlp.png");

var_dumps()给我NULL NULL

请帮助我我错在哪里。

这是我的完整视频上传代码:

$valid_formats = array("mp4","MP4","flv");
            if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST") {
               $name = $_FILES['uploading']['name'];
               $size = $_FILES['uploading']['size'];
               if(strlen($name)) {
                   $ext = strtolower(pathinfo($name, PATHINFO_EXTENSION)); 
                   $name = alphaID(microtime(true) * 10000).'_video';
                   if(in_array($ext,$valid_formats)) {
                   if($size<(50024*50024)) {
                      $GetVideoName = $name;
                      $video_ext=$ext;
                       $tmp = $_FILES['uploading']['tmp_name'];
                       if(move_uploaded_file($tmp, $videoPath.$GetVideoName.'.'.$video_ext)) {
                           $videoUrlp = $base_url.'uploads/video/'.$GetVideoName;
                           $videoa = exec("/usr/bin/ffmpeg  -i $videoUrlp.flv -f flv -s 650x390 $videoUrlp.mp4 2>&1");
                           $videob = exec("/usr/bin/ffmpeg  -i $videoUrlp.mp4 -vcodec png -ss 00:00:5 -s 650x390 -vframes 1 -an -f rawvideo $videoUrlp.png");
                           echo var_dump($videoa);
                           echo var_dump($videob);

                        } else {
                            echo "Fail upload folder with read access.";
                        }
                     } else
                        echo "Image file size max 1 MB";                    
                     } else
                        echo "invalidvieo"; 
                 } else
                    echo "Please select image..!";
                 exit;
              }

我也这样测试过:

echo exec("/usr/bin/ffmpeg -i $videoUrlp.flv -ar 22050 -ab 32 -f flv -s 780x400 $videoUrlp.$video_ext");
echo exec("/usr/bin/ffmpeg -i $videoUrlp.$video_ext -deinterlace -an -ss 1 -t 00:00:05 -r 1 -y -vcodec mjpeg -f mjpeg $videoUrlp.png 2>&1");

我看到以下回声

video:71kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%

再试一次,我得到了这个注释: https : //mywebsite.com/uploads/video/1547892356_video.flv :连接被拒绝

echo exec("/usr/bin/ffmpeg -i $videoUrlp.flv -ar 22050 -ab 32 -f flv -s 780x400 $videoUrlp.$video_ext");
echo exec("/usr/bin/ffmpeg -i $videoUrlp.$video_ext -deinterlace -an -ss 1 -t 00:00:05 -r 1 -y -vcodec mjpeg -f mjpeg $videoUrlp.png 2>&1");

这是最后一个 shell_exec 输出:

 $local = 'https://website.com/uploads/video/'.$GetVideoName.'.'.$video_ext;
 $localTumb = 'https://website.com/uploads/video/'.$GetVideoName.'.png';
 echo shell_exec("/usr/bin/ffmpeg -i $local -deinterlace -an -ss 1 -t 00:00:05 -r 1 -y -vcodec mjpeg -f mjpeg $localTumb 2>&1");    

ffmpeg 版本 2.8.15 版权所有 (c) 2000-2018 FFmpeg 开发人员使用 gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-36) 配置:--prefix=/usr --bindir=/usr/bin
--datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --extra-ldflags ='-Wl,-z,relro' --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --disable-crystalhd --enable- gnutls --enable-ladspa --enable-libass --enable-libcdio --enable-libdc1394 --enable-libfdk-aac --enable-nonfree --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libx264 --enable-libx265 --enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --启用共享--enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect libavutil 54. 31.100 / 54. 31.100 libavcodec 56. 60.100 / 56. 60.100. libav40.16 / 56 40.101 libavdevice 56. 4.100 / 4.100 56 5 libavfilter 40.101 / 5. 40.101 libavresample 2. 1. 0/2 1 0 libswscale 3. 1.101 / 1.101 3 1 libswresample 2.101 / 1 2.101 libpostproc 53 . 3.100 / 53. 3.100 输入 #0, mov,mp4,m4a,3gp,3g2,mj2, from ' https://website.com/uploads/video/e0J6HwtK_video.mp4 ': 元数据: major_brand : mp42 minor_brand : 0 compatible : isomp42 creation_time : 2018-01-01 12:09:49 持续时间: 00:00:41.49, 开始: 0.000000, 比特率: 230 kb/s Stream #0:0(und): Video: h264 (Constrained1 Baseline) / 0x31637661), yuv420p, 240x360 [SAR 1:1 DAR 2:3], 158 kb/s, 9.73 fps, 9.73 tbr, 19462 tbn, 19.46 tbc (default) 元数据: 视频处理程序 (默认): 0 :音频:aac (LC) (mp4a / 0x6134706D),44100 Hz,单声道,fltp,71 kb/s(默认)元数据:creation_time: 2018-01-01 12:09:49 handler_name:IsoMedia 文件由 Google 制作,5-11-2011 [swscaler @ 0xc8c580] 已弃用像素格式,请确保您已正确设置范围输出 #0、mjpeg 到 ' https: //website.com/uploads/video/e0J6HwtK_video.png ':元数据:major_brand:mp42 minor_version:0 compatible_brands:isommp42 编码器:Lavf56.40.101 Stream #0:0(und):视频:mjpeg,yuvj43602p [SAR 1:1 DAR 2:3], q=2-31, 200 kb/s, 1 fps, 1 tbn, 1 tbc(默认)元数据:handler_name:VideoHandler 编码器:Lavc56.60.100 mjpeg 流映射:Stream #0 :0 -> #0:0 (h264 (native) -> mjpeg (native)) 按 [q] 停止,[?] 帮助帧= 5 fps=0.0 q=1.6 Lsize= 100kB time=00:00: 05.00 比特率= 163.9kbits/s dup=0 drop=32 视频:100kB 音频:0kB 字幕:0kB 其他流:0kB 全局头:0kB 复用开销:0.000000%

如果您使用的是 https,则您的 ffmpeg 必须配置 ssl 支持( https 上的 ffmpeg 失败)。

参数必须被转义,你不能只是将变量作为参数转储在那里,网址包含像&东西&它在 shell 中具有特殊含义......例如这个

exec("/usr/bin/ffmpeg -i $videoUrlp.flv -f flv -s 650x390 $videoUrlp.mp4 2>&1");

应该是这样的:

exec("/usr/bin/ffmpeg -i ".escapeshellarg($videoUrlp.flv)." -f flv -s 650x390 ".escapeshellarg($videoUrlp.mp4)." 2>&1");

但..

请有人可以帮助我吗?

这里有 2 个获取缩略图的函数,getThumbPng2() 将首先使用 curl 下载整个视频,将其保存到一个临时文件中,然后使用 ffmpeg 提取 url(如果 ffmpeg 不是使用 http/https/ 构建的,这会更安全)任何支持,或者 ffmpeg 是否被防火墙或其他任何东西阻止,但缺点是它可能会慢得多)

并且第一个函数从 ffmpeg 获取缩略图而不先获取视频(这可能要快得多,因为 ffmpeg 只会读取所需的部分而不是下载整个视频,但由于上述原因可能无法正常工作)

function getThumbPng2(string $uri, string &$imageBinary=NULL, string &$stderr=NULL):bool{
    $ch=curl_init($uri);
    if(!$ch){
        $imageBinary=$stderr="curl_init() failed";
        return false;
    }
    $tmph=tmpfile();
    curl_setopt_array($ch,array(
        CURLOPT_SSL_VERIFYPEER=>false,
        CURLOPT_SSL_VERIFYHOST=>false,
        CURLOPT_FILE=>$tmph
    ));
    if(!curl_exec($ch)){
        $imageBinary=$stderr="curl error: ".curl_errno($ch).": ".curl_error($ch);
        curl_close($ch);
        fclose($tmph);
        return false;
    }
    curl_close($ch);
    $ret=getThumbPng(stream_get_meta_data($tmph)['uri'],$imageBinary,$stderr);
    fclose($tmph);
    return $ret;
}
function getThumbPng(string $uri,string &$imageBinary=NULL, string &$stderr=NULL):bool{
    $imageBinary="";
    $stderr="";
    $descriptorspec = array(
        0 => array("pipe", "rb"),  // stdin
        1 => array("pipe", "wb"),  // stdout
        2 => array("pipe","wb") // stderr 
    );
    $cmd="ffmpeg -i ".escapeshellarg($uri)." -ss 00:00:3 -s 650x390 -vframes 1 -c:v png -f image2pipe -";
    // var_dump($cmd);
    $proc = proc_open($cmd, $descriptorspec, $pipes);
    if(!$proc){
        $stderr="failed to start ffmpeg, proc_open(\"ffmpeg\",...) failed. (why? don't know, and PHP has no way of telling us either, afaik.)";
        return false;
    }
    fclose($pipes[0]);// by default stdin is *inherited*, which is not what we want,
    // so to avoid the default behaviour, we explicitly create a stdin pipe and close it.
    $fetch=function()use(&$pipes,&$imageBinary,&$stderr){
        $tmp=stream_get_contents($pipes[1]);
        if(is_string($tmp)){
            $imageBinary.=$tmp;
        }
        $tmp=stream_get_contents($pipes[2]);
        if(is_string($tmp)){
            $stderr.=$tmp;
        }   
    };
    while(($status=proc_get_status($proc))['running']){
        usleep(10*1000);
        $fetch();
    }
    $fetch();
    fclose($pipes[1]);
    fclose($pipes[2]);
    $ret=$status['exitcode'];
    proc_close($proc);
    //var_dump($ret);
    return ($ret===0);
}

用法示例:

<?php
if(getThumbPng("http://files.4x4norway.no/2018/vik2.webm",$imageBinary,$stderr)){
    echo "got a thumbnail! (the png binary data is in the \$imageBinary variable.)";
}else{
    var_dump($imageBinary);
    echo "failed to create thumbnail! error: {$stderr}";
}

使用此代码:` //thumb 路径应添加到以下代码中 //test for thumb

      $dir_img='uploads/';
      $mediapath='123.jpg';

      $file_thumb=create_movie_thumb($dir_img.$mediapath,$mediapath,$mediaid);

        $name_file=explode(".",$mediapath);
        $imgname="thumb_".$name_file[0].".jpg";     



        /*
          Function to create video thumbnail using ffmpeg
        */
        function create_movie_thumb($src_file,$mediapath,$mediaid)
        {
            global $CONFIG, $ERROR;

            $CONFIG['ffmpeg_path'] = '/usr/local/bin/'; // Change the path according to your server.
            $dir_img='uploads/';
            $CONFIG['fullpath'] = $dir_img."thumbs/";

            $src_file = $src_file;
            $name_file=explode(".",$mediapath);
            $imgname="thumb_".$name_file[0].".jpg";
            $dest_file = $CONFIG['fullpath'].$imgname;

            if (preg_match("#[A-Z]:|\\\\#Ai", __FILE__)) {
                // get the basedir, remove '/include'
                $cur_dir = substr(dirname(__FILE__), 0, -8);
                $src_file = '"' . $cur_dir . '\\' . strtr($src_file, '/', '\\') . '"';
                $ff_dest_file = '"' . $cur_dir . '\\' . strtr($dest_file, '/', '\\') . '"';
            } else {
                $src_file = escapeshellarg($src_file);
                $ff_dest_file = escapeshellarg($dest_file);
            }

            $output = array();

            if (eregi("win",$_ENV['OS'])) {
                // Command to create video thumb
                $cmd = "\"".str_replace("\\","/", $CONFIG['ffmpeg_path'])."ffmpeg\" -i ".str_replace("\\","/" ,$src_file )." -an -ss 00:00:05 -r 1 -vframes 1 -y ".str_replace("\\","/" ,$ff_dest_file);
                exec ("\"$cmd\"", $output, $retval);

            } else {
                // Command to create video thumb
                $cmd = "{$CONFIG['ffmpeg_path']}ffmpeg -i $src_file -an -ss 00:00:05 -r 1 -vframes 1 -y $ff_dest_file";
                exec ($cmd, $output, $retval);

            }


            if ($retval) {
                $ERROR = "Error executing FFmpeg - Return value: $retval";
                if ($CONFIG['debug_mode']) {
                    // Re-execute the command with the backtick operator in order to get all outputs
                    // will not work if safe mode is enabled
                    $output = `$cmd 2>&1`;
                    $ERROR .= "<br /><br /><div align=\"left\">Cmd line : <br /><span style=\"font-size:120%\">" . nl2br(htmlspecialchars($cmd)) . "</span></div>";
                    $ERROR .= "<br /><br /><div align=\"left\">The ffmpeg program said:<br /><span style=\"font-size:120%\">";
                    $ERROR .= nl2br(htmlspecialchars($output));
                    $ERROR .= "</span></div>";
                }
                @unlink($dest_file);
                return false;
            }

            $return = $dest_file;
            //@chmod($return, octdec($CONFIG['default_file_mode'])); //silence the output in case chmod is disabled
            return $return;
        }`

我认为您可以检查服务器上的 ffmpeg 安装文件。

$ffmpeg = trim(shell_exec('whereis ffmpeg')); // This will show you which path FFMPEG 

if (empty($ffmpeg))
{
    die('ffmpeg not available');
}else{
    echo $ffmpeg;
}

然后试试这个:

$cmd = shell_exec("$ffmpeg -i $videoUrlp.mp4 -ss 00:00:02.000 -vframes 1 $videoUrlp.png");

暂无
暂无

声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM