什么是好的函数php来处理ffmpeg和进度条 [英] what is the good function php to deal with ffmpeg and progress bar
本文介绍了什么是好的函数php来处理ffmpeg和进度条的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我问ffmpeg和progressbar
I ask about ffmpeg and progressbar
我用ffmpeg使用exec函数并将结果输出到txt文件
I used exec function with ffmpeg and output the result to txt file
并使用我在这里找到的一些代码
and using some of code I found here to
<!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
?>
所以我问一些他告诉我exec停止php脚本，永远不会给我
so i ask some one he told me the exec stop php script and never give me
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
这是我的popen脚本
this is my popen script
<?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 //////////////////////////////////////////////
?>
所以我不支持ffmpeg progressbAR有什么好处
so i dont under stand what is good for ffmpeg progressbAR
是exec或popen
is exec or popen
所以请给我ffmpeg实时进度条的提示
so please give me hints for ffmpeg real time progressbar
什么对进度栏有好处
是html5进度条
或javascript进度条
or javascript progress bar
推荐答案
我的方法是这样的
$sCmd = "ffmpeg -i infile.mp4 ... -report outfile.mp4 > /var/log/ffmpeg.log";
$proc = popen($sCmd." 2>&1", "r");
$read = fread($proc, 2096);
pclose($proc);
这是一个旧的项目的一些修改后的代码。我希望它会给你一些灵感：
Here is little bit modified code from one of my older projects. I hope it will give You some inspiration:
<?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;
}
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