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我们的代码如下。当转换一个上传.mov到.mp4转换停止在 98%。

几乎我们所有其他首选格式都可以完美编码。有人知道我们哪里出错了吗？我们为此苦苦挣扎了一段时间，所以我们想请教专家，在此先感谢您的帮助。

<?php
$Path = dirname(__FILE__) . "/";
$url = "http://" . $_SERVER['SERVER_NAME'] . str_replace('\\', '/', dirname($_SERVER['SCRIPT_NAME'])) . "/";

session_start();
include_once 'inc/config.inc.php';
include_once 'common.php';
include_once 'inc/ffmpegprogressbar.class.php';

ob_flush();
?>
<html>
<head>
    <title>Converting..........</title>
    <style type="text/css">
        #mainDiv{
            margin:auto 0;
            text-align: center;
        }
        #progressbar_pbText{
            display: block; margin-top: -22px;
        }
        #fileInformation{
            color: red; padding: 16px;
        }
    </style>
    <?php

// Specifie Inputfile for FFMPEG
    $count = count($_SESSION['Files']);
// $file  = array_pop($_SESSION['Files']);

    $FileInstance = array_pop($_SESSION['Files']);
    //$FileInstance = $_SESSION['Files'][0];
    $file = $FileInstance['FileName'];
    $passNeeded = $FileInstance['PassNeeded'];
    $fmt = $FileInstance['fmt'];

    $FFMPEGInput = $Path . 'data/' . $_SESSION['OldSession'] . "/" . $file;

    $timeUnique = time();
    //echo "Start:Session holds: ".$_SESSION["cstatus"].", cstatus var =   $cstatus";


  /*  if ($FileInstance['PassNeeded'] == 5) {
        $FFMPEGParams = "-r 1000 -ar 11025 -ab 32 -f $fmt -sameq -g 15 -s 1920x1080";
    } else if ($FileInstance['PassNeeded'] == 4) {
        $FFMPEGParams ="-r 1000 -ar 11025 -ab 32 -f $fmt -sameq -g 15 -s 1280x720";
    } else if ($FileInstance['PassNeeded'] == 3) {
        $FFMPEGParams = "-r 1000 -ar 11025 -ab 32 -f $fmt -sameq -g 15 -s 854x480";
    } else if ($FileInstance['PassNeeded'] == 2) {
        $FFMPEGParams = "-r 1000 -ar 11025 -ab 32 -f $fmt -sameq -g 15 -s 640x360";
    }
    */
if($fmt=="flv"){
if ($FileInstance['PassNeeded'] == 5) {
        $FFMPEGParams = "-r 1000 -ar 11025 -ab 32 -f $fmt -sameq -g 15 -s 1920x1080";
    } else if ($FileInstance['PassNeeded'] == 4) {
        $FFMPEGParams ="-r 1000 -ar 11025 -ab 32 -f $fmt -sameq -g 15 -s 1280x720";
    } else if ($FileInstance['PassNeeded'] == 3) {
        $FFMPEGParams = "-r 1000 -ar 11025 -ab 32 -f $fmt -sameq -g 15 -s 854x480";
    } else if ($FileInstance['PassNeeded'] == 2) {
        $FFMPEGParams = "-r 1000 -ar 11025 -ab 32 -f $fmt -sameq -g 15 -s 640x360";
    }
}elseif($fmt=="mp4"){
$FFMPEGParams = " -pix_fmt yuv420p -s 640x360";

}elseif($fmt=="ogv"){
$FFMPEGParams = " -acodec libvorbis -ac 2 -ab 96k -ar 44100 -b 125k -s 640x360";

}elseif($fmt=="webm"){
$FFMPEGParams = " -acodec libvorbis -ac 2 -ab 96k -ar 44100 -b 125k -s 640x360";
//}elseif($fmt!==""){
//-i %1 -s qvga -acodec libfaac -ar 22050 -ab 128k -vcodec libx264 -threads 0 -f   ipod %2
//-vcodec mpeg4 -acodec aac output.mp4
//$FFMPEGParams = "-r 20 -ar 44100 -ab 196 -f $fmt -s 480x351";
}
    if ($FileInstance['PassNeeded'] > 2) {
        $FileInstance['PassNeeded'] = $FileInstance['PassNeeded'] - 1;
        array_unshift($_SESSION['Files'], $FileInstance);
    }

    $flv_rpath = 'data/' . $_SESSION['OldSession'] . "/" . $file. $timeUnique . ".".$fmt;

     $FFMPEGOutput = $FFMPEGInput . $timeUnique . ".$fmt";

    $_SESSION['ConvertedFiles'][$file][] = array('Pass' => $passNeeded, 'OutFile' => $file . $timeUnique . ".$fmt","fmt"=>$fmt);



    if (!$_GET["pkey"]) {
        $pkey = rand();
    } elseif (file_exists('log/' . $_GET["pkey"] . '.ffmpeg')) {
        $pkey = $_GET["pkey"];
    } else {
        $pkey = rand();
    }

// initializing and create ProgressBar
    flush();
    $FFMPEGProgressBar = &new FFMPEGProgressBar();
    flush();
// Show Progressbar
    if ($count > 0) {
        if ($FileInstance['PassNeeded'] < 3) {
        define('FFMPEG_LIBRARY', '/usr/local/bin/ffmpeg ');
        $extension = "ffmpeg";
        $extension_soname = $extension . "." . PHP_SHLIB_SUFFIX;
        $extension_fullname = PHP_EXTENSION_DIR . "/" . $extension_soname;
            if (!extension_loaded($extension)) {
                dl($extension_soname) or die("Can't load extension $extension_fullname\n");
            }
            exec(FFMPEG_LIBRARY . " -y -i '" . $FFMPEGInput . "' -vframes 1 -ss 00:00:03 -an -vcodec png -f rawvideo -s 160x90 '$FFMPEGInput.png'");
        }
        $FFMPEGProgressBar->Show($pkey, $count, $url, $passNeeded, $file, $timeUnique,$fmt);
        if (!$_GET["pkey"] || !file_exists('log/' . $_GET["pkey"] . '.ffmpeg')) {
            flush();
            $FFMPEGProgressBar = &new FFMPEGProgressBar();
            flush();
            @$FFMPEGProgressBar->execFFMPEG($FFMPEGInput, $FFMPEGOutput, $FFMPEGParams, $pkey);

            flush();
            $_SESSION['new_space']["video"] = 'data/' . $_SESSION['OldSession'] . "/" . $file;
            $_SESSION['new_space']["{$FileInstance['name']}"] = $flv_rpath;
            $_SESSION['new_space']["session"] =   $_SESSION['OldSession'];
        }
    //echo "End:Session holds: ".$_SESSION["cstatus"].", cstatus var = $cstatus";
    } else {
//  header("Location: $url" . "index.php" );
        echo "<script type=\"text/javascript\">window.location.href='" . $url . "';</script><error>No Input</error>";
    }
// ShowProgressbar
    ?>
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