什么是良好的作用PHP处理的ffmpeg和进度条

我使用exec函数的有关ffmpeg，并将结果输出到TXT文件

，并使用一些代码，我发现这里

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html lang="es"> 
<title>AudioXtractor</title> 
<body> 
<center> 



    <?php 

    define('RAPIDLEECH', 'yes'); 
    define('CONFIG_DIR', 'configs/'); 
    require_once('configs/config.php'); 
    define ('TEMPLATE_DIR', 'templates/'.$options['template_used'].'/'); 
    // Include other useful functions 
    require_once('classes/other.php'); 
    error_reporting(0); 

    login_check(); 

    include(TEMPLATE_DIR.'header.php'); 

    echo ('<br><br><br><b>AudioXtractor</b>, un complemento <br> que te permite extraer el audio de tus videos.<br><br><br>'); 

    putenv('GDFONTPATH=' . realpath('.')); ?> 

    <br /> 

    <FORM method="post"><center> 
    <TABLE> 
     <td>Movie: 
    <select name="video"> 

    <?php 
    $exts=array(".ac3", ".avi", ".f4v", ".flv", ".mkv", ".mov", ".mp4", ".mpg", ".mpeg", ".rmvb", ".srt", ".swf", ".wav", ".wmv"); 
    $ext=""; 
    function vidlist($dir) 
    { 
    $results = array(); 
    $handler = opendir($dir); 
    while ($file = readdir($handler)) 
    { 
    if (strrchr($file,'.')!="") 
    { 
    $ext=strtolower(strrchr($file,'.')); 
    } 
    if ($file != '.' && $file != '..' && in_array($ext,$GLOBALS["exts"])) 
    { 
    $results[] = $file; 
    } 
    } 
    closedir($handler); 
    sort($results); 
    return $results; 
    } 
    function Output($command) { 
    $output = array($command); 
    exec($command.' 2>&1', $output); 
    return ($output); 
    } 
    $files = vidlist("./files/"); 
    foreach($files as $file) 
    { 
     echo '<option value="'.$file.'">'.$file.'</option>'; 
    } 

    ?> 


    </TABLE> 

    <br/ > 
    New MP3's name: 
    <input type="text" name="nvdo" value="nuevoaudio"> 
    <br/ > 
    <br /> 
    <br /> 

    <td colspan=2><center><input type=submit style="font-size:16px; font-weight:bold; cursor:pointer;" name="analize" value=Extract /></td> 
    <tr> 

    </FORM> 


    <?php 
    if ($_POST['video']!="") 

     $video = 'files/'; 
     $video=array();  
     $video[0] = $_POST['video']; 

    if ($_POST['nvdo']!="") 

     $nvdo = 'files/'; 
     $nvdo=array();  
     $nvdo[0] = $_POST['nvdo']; 



    foreach ($video as $vdo) 
    foreach ($nvdo as $nvd) 

    if (isset($_POST["analize"])) { 

     exec("ffmpeg -i files/$vdo -ab 192k files/$nvd.mp3 -y 2> files/$nvd.txt"); 

     $ext=strtolower(strrchr($vdo,'.')); 

    /////////////////////////////////////////////////////my code ////////////////////////////////////////// 

    $content = @file_get_contents("files/$nvd.txt"); 


     //get duration of source 
     preg_match("/Duration: (.*?), start:/", $content, $matches); 

     $rawDuration = $matches[1]; 

     //rawDuration is in 00:00:00.00 format. This converts it to seconds. 
     $ar = array_reverse(explode(":", $rawDuration)); 
     $duration = floatval($ar[0]); 
     if (!empty($ar[1])) $duration += intval($ar[1]) * 60; 
     if (!empty($ar[2])) $duration += intval($ar[2]) * 60 * 60; 

     //get the time in the file that is already encoded 
     preg_match_all("/time=(.*?) bitrate/", $content, $matches); 

     $rawTime = array_pop($matches); 

     //this is needed if there is more than one match 
     if (is_array($rawTime)){$rawTime = array_pop($rawTime);} 

     //rawTime is in 00:00:00.00 format. This converts it to seconds. 
     $ar = array_reverse(explode(":", $rawTime)); 
     $time = floatval($ar[0]); 
     if (!empty($ar[1])) $time += intval($ar[1]) * 60; 
     if (!empty($ar[2])) $time += intval($ar[2]) * 60 * 60; 

     //calculate the progress 
     $progress = round(($time/$duration) * 100); 




     echo '<BR><BR>¡Su video fue convertido correctamente! <BR><BR>Link al archivo:'; 

     echo ' <a href="files/'.$nvd.'.mp3">'.$nvd.'.mp3</a><BR />' . "<br>"; 
     echo "Duration: " . $duration . "<br>"; 
     echo "Current Time: " . $time . "<br>"; 
     echo "Progress: " . $progress . "%" . "<br>"; 

    //////////////////////////////////////my coed ////////////////////////////////////////////// 
    } 

    ?> 
    <br><br><a href="index.php">Volver al RapidLeech</a> 

    <br><br><br>Formatos Aceptados: <br><b>.ac3, .avi, .f4v, .flv, .mkv, .mov, .mp3,<br> .mp4, .mpg, .mpeg, .rmvb, .srt, .swf, .wav, .wmv</b> 
    <br><br> 
    </center></body></html> 

    <?php 



    ?>

，所以我问了一些一个，他告诉我的EXEC停止PHP脚本，从来没有给我

You can't get the progress directly if you are using exec, because the php script is stopped until ffmpeg closes. (Because exec returns the whole execution output) 

You should use popen, for being able to get the output from the process in real time (without reading any file) for parse and show the progressbar 

Here is a example for get the output: 

When you get the progress info from ffmpeg, you can use your code for parse it and show your progressbar

这是我POPEN脚本

<?php 

$handle = popen ("ffmpeg.exe -i files/fz.mp4 -ab 192k files/vdf.mp3 2>&1 ", 'r'); 
$handles = (string)$handle; 
$line = ""; 

while (false !== ($char = fgetc($handle))) 
{ 
    if ($char == "\r") 
    { 
    // You could now parse the $line for status information. 
    echo "$line\n"; 
    $line = ""; 
    } else { 
    $line .= $char; 
    } 
    ob_flush(); 
    flush(); 
} 
pclose ($handle); 


    //get duration of source 
    preg_match("/Duration: (.*?), start:/", $handles, $matches); 

    $rawDuration = $matches[1]; 

    //rawDuration is in 00:00:00.00 format. This converts it to seconds. 
    $ar = array_reverse(explode(":", $rawDuration)); 
    $duration = floatval($ar[0]); 
    if (!empty($ar[1])) $duration += intval($ar[1]) * 60; 
    if (!empty($ar[2])) $duration += intval($ar[2]) * 60 * 60; 

    //get the time in the file that is already encoded 
    preg_match_all("/time=(.*?) bitrate/", $handles, $matches); 

    $rawTime = array_pop($matches); 

    //this is needed if there is more than one match 
    if (is_array($rawTime)){$rawTime = array_pop($rawTime);} 

    //rawTime is in 00:00:00.00 format. This converts it to seconds. 
    $ar = array_reverse(explode(":", $rawTime)); 
    $time = floatval($ar[0]); 
    if (!empty($ar[1])) $time += intval($ar[1]) * 60; 
    if (!empty($ar[2])) $time += intval($ar[2]) * 60 * 60; 

    //calculate the progress 
    $progress = round(($time/$duration) * 100); 




    echo '<BR><BR>¡Su video fue convertido correctamente! <BR><BR>Link al archivo:'; 


    echo "Duration: " . $duration . "<br>"; 
    echo "Current Time: " . $time . "<br>"; 
    echo "Progress: " . $progress . "%" . "<br>"; 

//////////////////////////////////////my coed ////////////////////////////////////////////// 

?>

，所以我下架不什么是良好的ffmpeg的进度

是高管或popen方法

，所以请给我提示了ffmpeg的实时进度

进度条有什么好处

是html5进度条

或javascript进度条

来源

2013-10-03 Abed Soliman

签出一个（在PHP的ffmpeg转换器）：https://github.com/jmalinens/wap4我会尽量记住并找到相关零件 –

我的做法是这样的

$sCmd = "ffmpeg -i infile.mp4 ... -report outfile.mp4 > /var/log/ffmpeg.log"; 
$proc = popen($sCmd." 2>&1", "r"); 
$read = fread($proc, 2096); 
pclose($proc);

这里是我的大项目之一点点的修改后的代码。我希望它会给你一些启示：我的项目的

<?php 
//get so far encoded time 
public function getEncodedTime(){ 

    $FFMPEGLog = file_get_contents('ffmpeg.log'); 
    $times  = explode('time=', $FFMPEGLog); 
    $ctime  = count($times)-1; 
    $timed  = explode(' bitrate=', $times[$ctime]); 
    //print_r($timed); 
    $nEncTime = $timed[0]; 
    list($h, $m, $s) = explode(":", $nEncTime); 
    $s = ceil($s); // 21.40 seconds => 22 seconds 
    $nEncTime = hms2sec($h, $m, $s); 

    return $nEncTime; 

} 

//covert H:i:s time to seconds 
public function hms2sec ($h, $m, $s) { 

    //list($h, $m, $s) = explode (":", $hms); 
    $seconds = 0; 
    $seconds += (intval((string)$h) * 3600); 
    $seconds += (intval((string)$m) * 60); 
    $seconds += (intval((string)$s)); 
    return $seconds; 

} 


//get total length of file 
public function getTotalTime() 
{ 
    $play_time_sec = 0; 

    $lines = file('ffmpeg.log'); 
    foreach ($lines as $line_num => $line) { 
     if(strpos($line, 'Duration') !== false) { 
      $line = explode("Duration: ", $line); 
      $line = explode(",", $line[1]); 
      $line = explode(":", $line[0]); 

      $play_time_sec = 0; 
      $play_time_sec += intval((string)$line[0]) * 60 * 60; // hour 
      $play_time_sec += intval((string)$line[1]) * 60; // minute 
      $play_time_sec += intval((string)round($line[2])); // second 
      break; 
     } 
    } 

    return $play_time_sec; 
} 


//get percents completed: 
public function getPercentsComplete() 
{ 

    $sFileContents = file_get_contents('ffmpeg.log'); 
    if(stripos($sFileContents, 'No more inputs to read from, finishing') !== false) { 
     return 100; 
    } 

    $nTotalTime = getTotalTime(); 
    $nEncodedTime = getEncodedTime(); 

    if($nEncodedTime <= 0) 
     return 0; 

    if($nEncodedTime >= $nTotalTime) 
     return 100; 

    $nPercentsComplete = round(($nEncodedTime/$nTotalTime)*100); 

    return $nPercentsComplete; 
}

来源

2013-10-03 14:17:28

什么是良好的作用PHP处理的ffmpeg和进度条

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