什麼是良好的作用PHP處理的ffmpeg和進度條

我使用exec函數的有關ffmpeg，並將結果輸出到TXT文件

，並使用一些代碼，我發現這裏

<!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 



    ?>

，所以我問了一些一個，他告訴我的EXEC停止PHP腳本，從來沒有給我

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

這是我POPEN腳本

<?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 ////////////////////////////////////////////// 

?>

，所以我下架不什麼是良好的ffmpeg的進度

是高管或popen方法

，所以請給我提示了ffmpeg的實時進度

進度條有什麼好處

是html5進度條

或javascript進度條

來源

2013-10-03 Abed Soliman

簽出一個（在PHP的ffmpeg轉換器）：https://github.com/jmalinens/wap4我會盡量記住並找到相關零件 –

我的做法是這樣的

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

這裏是我的大項目之一點點的修改後的代碼。我希望它會給你一些啓示：我的項目的

<?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; 
}

來源

2013-10-03 14:17:28

什麼是良好的作用PHP處理的ffmpeg和進度條

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