[MPlayer-users] mms streaming code question

[Andrew Eberbach]

Hi,

So I added some debugging (since Winsock doesn't store things in errno) and recompiled and I now see that the error is a 10054 (WSACONNRESET) aka connection reset by peer. Does anyone have any idea why this would be happening on an mms stream while it is buffering? 


Thanks,
Andrew

> From: bvrc at hotmail.com
> To: mplayer-users at mplayerhq.hu
> Date: Fri, 19 Dec 2008 12:42:22 -0500
> Subject: [MPlayer-users] mms streaming code question
> 
> 
> Hi,
> 
> I'm trying to figure out why I'm experiencing some weird behaviour with mms streaming on XBMC. Now before I get flamed and told that it's an XBMC problem, just hear me out. I'm perfectly willing to accept that it could be but I figure the people reading this list understand streaming protocols much better than I do so I'm just covering my bases and the code in question is the same in XBMC and in the MPlayer svn.
> 
> If you look at stream/asf_mmst_streaming.c
> 
> There's a bit there called get_data in which there's a call to recv while trying to fill up the buffer. 
> 
> len = recv (s, &buf[total], count-total, 0);
> 
>     if (len<=0) {
>       perror ("read error:");
>       return 0;
>     }
> 
> Now, this happens during the call to 
> 
>     if (!get_data (s, data, packet_len)) {
>       mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_MMST_MediaDataReadFailed);
>       return 0;
>     }
> 
> in get_media_packet. What I'm seing is that it hits the perror. Now, from recv documentation at (http://www.opengroup.org/onlinepubs/009695399/functions/recv.html) I gather that recv can return:
> 
> "Upon successful completion, recv() shall return the length of the message in bytes. If no messages are available to be
> received and the peer has performed an orderly shutdown, recv() shall return 0. Otherwise, -1 shall be returned and
> errno set to indicate the error."
> 
> Now I understand I'm going to have to recompile this badboy and print out the errno to get more information, but I'm wondering, if the return isn't a negative number and is 0, does this mean that the server on the other end just closed the connection? Has anyone seen similar behaviour with mms streaming?
> 
> Thanks,
> Andrew
> 
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