asterisk users - Sep 2008 - OT - How to stream a A-Law/wav file to a browser ?

Hi,

How can I create a web page allowing people to listen (with their own PC) a
couple of .wav/a-law files stored on a Linux server ?
Chances are users would access this web page from Internet Explorer but if I
could make it available to other browsers, that would be better.

I googled a bit and couldn't find a tag such as media://myaudiofile.wav that
would fulfill this spec.

As much as possible, I would be happy to avoid configuring browser plugins
and so on.
So if this media:// could be already installed and running in users PCs,
that would be fine.

I've read Red5 servers/Flash players combination could respond but I'm
not
too confident about a-law support and Red5 installation complexity for a
100% pure beginner.

What do you think ?

Cheers
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.digium.com/pipermail/asterisk-users/attachments/20080918/327385d3/attachment.htm

How do you feel about converting them to RIFF/MSPCM WAV format and encoding
them into MP3?

On Thu, September 18, 2008 11:01 am, Olivier wrote:
> Hi,
>
> How can I create a web page allowing people to listen (with their own PC)
> a
> couple of .wav/a-law files stored on a Linux server ?
> Chances are users would access this web page from Internet Explorer but if
> I
> could make it available to other browsers, that would be better.
>
> I googled a bit and couldn't find a tag such as media://myaudiofile.wav
> that
> would fulfill this spec.
>
> As much as possible, I would be happy to avoid configuring browser plugins
> and so on.
> So if this media:// could be already installed and running in users PCs,
> that would be fine.
>
> I've read Red5 servers/Flash players combination could respond but
I'm not
> too confident about a-law support and Red5 installation complexity for a
> 100% pure beginner.
>
> What do you think ?
>
> Cheers
> _______________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
> AstriCon 2008 - September 22 - 25 Phoenix, Arizona
> Register Now: http://www.astricon.net
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users

-- 
Alex Balashov
Evariste Systems
Web    : http://www.evaristesys.com/
Tel    : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (706) 338-8599

On Thu, 18 Sep 2008, Olivier wrote:
> Hi,
>
> How can I create a web page allowing people to listen (with their own PC) a
> couple of .wav/a-law files stored on a Linux server ?
> Chances are users would access this web page from Internet Explorer but if
I
> could make it available to other browsers, that would be better.
>
> I googled a bit and couldn't find a tag such as media://myaudiofile.wav
that
> would fulfill this spec.
If the web server is running php, then this will work:

<?

   $action = $HTTP_GET_VARS["action"] ;
   $file   = $HTTP_GET_VARS["file"] ;
   $caller = $HTTP_GET_VARS["caller"] ;

   if (empty ($action) || empty ($file))
     die ("Something went wrong")  ;

// Open the file

   $fileName = "/prefix/" . $file ;
   $fd       = @fopen ($fileName, "rb") ;

   if ($fd === FALSE)
     { Header ("Location: " . $caller . ".php?error=1") ;
die () ; }

// Send the headers to the browser

   $len = filesize ($fileName) ;

   Header ("Accept-Ranges: bytes");
   Header ("Content-Length: $len") ;
   Header ("Keep-Alive: timeout=2, max=100") ;
   Header ("Connection: Keep-Alive") ;
   Header ("Content-Type: audio/x-wav") ;

   if ($action == "download")
   {
     Header ("Content-Disposition: attachment;
filename=\"$fileName\"");
     Header ("Content-Description: File Transfer");
   }

// Transmit the file in 8K blocks

   while (!feof ($fd) && (connection_status () == 0))
   {
     set_time_limit (0) ;
     print (fread ($fd, 1024*8)) ;
     flush () ;
   }

   fclose ($fd) ;

?>

If this was called playback.php, then you'd reference it in other HTML 
code with:

   <a
href="payback.php?action=play&file=music.wav&caller=thisFile">Click
 	here to play</a>

I've found that seems to let most browsers play (or download) most audio 
files, (most of the time ;-)

The browser will (should) do whatever it's configured to do with audio 
files. I use this to let people playback voicemail and call recordings.

Gordon

Gordon Henderson schrieb:
> If the web server is running php, then this will work:
> 
> <?
> 
>    $action = $HTTP_GET_VARS["action"] ;
>    $file   = $HTTP_GET_VARS["file"] ;
>    $caller = $HTTP_GET_VARS["caller"] ;
> 
>    if (empty ($action) || empty ($file))
>      die ("Something went wrong")  ;
> 
> // Open the file
> 
>    $fileName = "/prefix/" . $file ;
>    $fd       = @fopen ($fileName, "rb") ;
Without any validation of the filename?
It could be "../../secret/file".


   Philipp Kempgen

-- 
http://www.das-asterisk-buch.de  -  http://www.the-asterisk-book.com
Amooma GmbH - Bachstr. 126 - 56566 Neuwied  ->  http://www.amooma.de
Gesch?ftsf?hrer: Stefan Wintermeyer, Handelsregister: Neuwied B14998
--

Olivier wrote:
> Hi,
>
> How can I create a web page allowing people to listen (with their own 
> PC) a couple of .wav/a-law files stored on a Linux server ?
> Chances are users would access this web page from Internet Explorer 
> but if I could make it available to other browsers, that would be better.
>
> I googled a bit and couldn't find a tag such as 
> media://myaudiofile.wav that would fulfill this spec.
>
> As much as possible, I would be happy to avoid configuring browser 
> plugins and so on.
> So if this media:// could be already installed and running in users 
> PCs, that would be fine.
>
> I've read Red5 servers/Flash players combination could respond but
I'm
> not too confident about a-law support and Red5 installation complexity 
> for a 100% pure beginner.
This works for IE.  It displays the Play Button of the Windows Media 
Player.  No need to download files or anything.  It plays right off the 
web page:

<html>
<body>
        <object
        classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6"
        type="application/x-oleobject" width="35"
height="32"
align="absmiddle" id="VIDEO"
        style="width: 35px; height: 30px;">
        <param name="URL" value="http://your WAV url goes
here">
        <param name="SendPlayStateChangeEvents"
value="True">
        <param name="AutoStart" value="False">
        <param name="uiMode" 
value="mini">                                         
        <param name="PlayCount" value="1">
        </object>
<body>
</html>

Andres
http://www.neuroredes.com
>
> What do you think ?
>
> Cheers
>
>------------------------------------------------------------------------
>
>_______________________________________________
>-- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
>AstriCon 2008 - September 22 - 25 Phoenix, Arizona
>Register Now: http://www.astricon.net
>
>asterisk-users mailing list
>To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
>