ffmpeg-php将视频格式转为flv格式实现代码
本文章介绍了一个插件利用ffmpeg-php将视频格式转为flv格式,这样很多格式的视频我们都可以利用这个插件来实现格式转换,以下是一个参考类,平台使用windows,代码如下:
<?php
define("ROOT_DIR", dirname(__FILE__));
class EcodeFlv {
var $fromFile; //上传来的文件
var $toFilePath; //保存文件路径
var $toPicPath; //保存图片路径
var $mpeg; //ffmpeg程序文件的路径
var $mencode; //mencode程序文件的路径
var $cmdToFile; //转换文件命令
var $cmdToPic; //转换图片命令
var $toFileName; //转换后的文件名
var $mpegComm; //ffmpeg.exe的转换命令
var $mencodeComm; //mencode.exe的命令
var $mpegType;
var $mencodeType;
var $midi; //mdi.exe的路径
var $cmdMidi; //mdi.exe的命令
//初始化类
function EcodeFlv($fromFile, $toFilePath, $toPicPath, $mpeg, $mencode, $midi) {
$this->mpegComm = false;
$this->mencodeComm = false;
$this->fromFile = $fromFile;
$this->toFilePath = $toFilePath;
$this->toPicPath = ROOT_DIR . "/" . $toPicPath;
$this->mpeg = ROOT_DIR . $mpeg;
$this->mencode = ROOT_DIR . $mencode;
$this->midi = ROOT_DIR . $midi;
$this->mpegType = array(
"audio/x-mpeg" => ".mp3",
"video/mpeg" => ".mpeg",
"video/3gpp" => ".3gp",
"video/x-ms-asf" => ".asf",
"video/x-msvideo" => ".avi"
);
$this->mencodeType = array(
"application/vnd.rn-realmedia" => ".rm",
"audio/x-pn-realaudio" => ".rmvb",
"audio/x-ms-wmv" => ".wmv",
);
} //检查文件类型
function checkType() {
if (function_exists(mime_content_type)) {
return false;
} else {
//$contentType = mime_content_type($this->fromFile);
$exe = "D:serverphpextrasmagic";
$handel = new finfo(FILEINFO_MIME, $exe);
$contentType = $handel->file($this->fromFile);
}
foreach ($this->mpegType as $index => $key) {
if ($contentType == $index) {
$name = md5(date("Ymd") . tiime());
$this->toFileName = $name;
$this->$mpegComm = true;
return true;
}
}
foreach ($this->mencodeType as $index => $key) {
if ($contentType == $index) {
$name = md5(date("Ymd") . time());
$this->toFileName = $name;
$this->mencodeComm = true;
return true;
} else {
return false;
}
}
}
//设置文件,图片大小">图片大小
function setSize($flvSize, $picSize) {
$flvWidth = $flvSize[0];
$flvHeight = $flvSize[1];
$picWidth = $picSize[0];
$picHeight = $picSize[1];
$picName = $this->toPicPath . $this->toFileName . ".jpg";
$flvName = $this->toFilePath . $this->toFileName . ".flv";
$toMdi = ROOT_DIR . "/" . $flvName;
$size = $picWidth . "x" . $picHeight;
if ($this->mpegComm) {
$this->cmdToFile = "$this->mpeg -i $this->fromFile -y -ab 56 -ar 22050 -b 500 -r 15 -s $flvWith*$flvHeight $flvName";
} elseif ($this->mencodeComm) {
$this->cmdToFile = "$this->mencode $this->fromFile -vf scale=$flvWidth:$flvHeight -ffourcc FLV1 -of lavf -ovc lavc -lavcopts vcodec=flv:vbitrate=70:acodec=mp3:abitrate=56:dia=-1 -ofps 25 -srate 22050 -oac mp3lame -o $flvName";
}
$this->cmdToPic = "$this->mpeg -i $toMdi -y -f image2 -ss 8 -t 0.003 -s $size $picName";
$this->cmdMidi = "$this->midi $toMdi /k";
echo $this->cmdToPic;
}
//开始转换
function toEcode() {
set_time_limit(0);
exec($this->cmdToFile, $flvStatus) exec($this->cmdToPic, $picStatus);
exec($this->cmdMidi, $mStatus);
}
}本文地址:http://www.phprm.com/develop/fs4991.html
转载随意,但请附上文章地址:-)