PHP stream video file using fsockopen ( .wmf ) acting as proxy

Cyf · November 19, 2008

OK here goes,

I basically have a video stream (internal ip) that i need to proxy via a php script (which will check the user is logged in) and then i will have a main page that streams from proxy.php.

This is what i have so far:

proxy.php

<?php

set_time_limit(0);

$fp = fsockopen("server.domain.co.uk", 8000, $errno, $errstr, 30);

if (!$fp) {

echo "$errstr ($errno)<br />\n";

} else {

$out = "GET /andi/news011008.wmv HTTP/1.1\r\n";

$out .= "Host: server.domain.co.uk\r\n";

$out .= "Connection: Close\r\n\r\n";

fwrite($fp, $out);

while (!feof($fp)) {

echo fgets($fp);

}

fclose($fp);

}

?>

viewvideo.html

<object

classid="clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95">

<param name="FileName" value="proxy.php" />

</object>

If i view the proxy page directly i can see the header information and it does appear to spit out the data to the browser but when i load it through the html page is doesnt show anythign, do i need to stream this in a different way for it to work?

Any help would be great im getting quite urgent for a solution!

Thanks,

Cyf

ratcateme · November 19, 2008

   $headers_complete = false;
   $headers = "";
    while (!feof($fp)) {
        if($headers_complete){
            echo fgets($fp);
        }else{
            $headers .= fgets($fp);
            if(strpos($headers,"\r\n\r\n")!==false){
                $headers_complete = true;
            }
        }
    }

give that ago and you might want to look into a content-type header

Scott.

Cyf · November 19, 2008

I tried setting:

header('Content-type: video/x-ms-wmv');

at the very top but it didn't make a different, what does it know when the header data has ended using your method? does fgets only return data until a return character? \n\r\n\r?

ratcateme · November 19, 2008

fgets reads until new line of end of file(or stream in this case)

a new line is a \r or \n or a \r immediately followed by a \n (so \r\n)

the end of the headers is when \r\n\r\n is reached my code saves the data line by line adding it to $headers and after it saves each new line it check to see if it has a \r\n\r\n in it indicating that the headers are finished and the next line will be data so it sets $headers_complete to true so on the next loop the data will be echoed not saved.

Scott.

Cyf · November 19, 2008

Tried that and it doesnt display anything through the <object>....</object> page. If i navigate directly it no longer outputs the data to the screen

Code is now as follows:

<?php
header('Content-type: video/x-ms-wmv');
set_time_limit(0);
$fp = fsockopen("source.site.gov.uk", 8000, $errno, $errstr, 30);
if (!$fp) {
    echo "$errstr ($errno)<br />\n";
} else {
    $out = "GET /andi/news011008.wmv HTTP/1.1\r\n";
    $out .= "Host: source.site.gov.uk\r\n";
    
    fwrite($fp, $out);
    
    //while (!feof($fp)) {
    //    echo fgets($fp);
    //}
   $headers_complete = false;
   $headers = "";
    while (!feof($fp)) {
        if($headers_complete){
            echo fgets($fp);
        }else{
            $headers .= fgets($fp);
            if(strpos($headers,"\r\n\r\n")!==false){
                $headers_complete = true;
            }
        }
    }
    
    fclose($fp);
}

?>

Thanks for your time!

ratcateme · November 19, 2008

you removed the connecion header

re add this line

$out .= "Connection: Close\r\n\r\n";

the server never thinks you have finished send your headers and to start sending it own.

Scott.

Cyf · November 19, 2008

just noticed if i leave the webproxy loading for a while i get a message in a dialog box saying

Title: Windows Media Player

Details: The file youa re attempting to play has an extension (.wmv) that does not match the file format. Playing the file may result in unexpected behaviour"

Do you want the player to try to play this content?"

if i say yes it just opens windows media play, black screen shows and in the playlist it says no playing: webcamproxy

but the play button is showing indicating its now playing? eventually says was unable to play :S

Any more suggestions? thanks!!

ratcateme · November 19, 2008

is that with the connection close header back on?

i can't see any other reason why it wouldn't work if you have that header i can use that script to load images on my server fine.

Scott.

Cyf · November 19, 2008

OK thats working now!!

I need to change the static video.wmv file i have in there for a .rm stream now which im trying to do with the following but real player object shows on the screen with a message saying it doesnt support the mimetype even though i got the mime type for video of there site?

header("Content-Type: video/vnd.rn-realvideo"); 

...

$out = "GET /state07.rm RSTP/1.0\r\n";  //is this correct as my url has rtsp://?

Cyf · November 19, 2008

does anyone if this is possible?

i need somethign like this:

rstp://my.domain.com/video.rm to be streamed/proxied via my proxy php file in the same way that my wmv file did earlier in this post

ratcateme · November 19, 2008

i did a wire capture of a rstp video stream

OPTIONS rtsp://rx-wes-sea69.rbn.com:554 RTSP/1.0
CSeq: 1
User-Agent: RealMedia Player HelixDNAClient/10.0.1.338 (win32)
Supported: ABD-1.0
ClientChallenge: e584946913ee0e697ccaeebc94f6da33
ClientID: WinNT_5.1_6.0.14.835_RealPlayer_R41APR_en-us_686
CompanyID: Kl4ERtdV5/XRO1ZSJkHNeg==
GUID: 00000000-0000-0000-0000-000000000000
PlayerStarttime: [20/11/2008:10:34:02 12:00]
Pragma: initiate-session
RegionData: 0600

RTSP/1.0 200 OK
CSeq: 1
Date: Wed, 19 Nov 2008 21:34:02 GMT
Session: 295275339-1;timeout=80
Server: Helix Mobile Server Version 11.1.7.3406 (linux-rhel4-i686) (RealServer compatible)
Public: OPTIONS, DESCRIBE, ANNOUNCE, PLAY, PAUSE, SETUP, GET_PARAMETER, SET_PARAMETER, TEARDOWN
TurboPlay: 1
RealChallenge1: 7349feaa11fcfac66f83e682109161e4
StatsMask: 0

DESCRIBE rtsp://rx-wes-sea69.rbn.com:554/farm/pull/tx-rbn-sea002:2459/farm/cspan/g2cspan/live/cspan2-g2.rm RTSP/1.0
CSeq: 2
Accept: application/sdp
User-Agent: RealMedia Player HelixDNAClient/10.0.1.338 (win32)
Session: 295275339-1;timeout=80
Bandwidth: 554327
ClientID: WinNT_5.1_6.0.14.835_RealPlayer_R41APR_en-us_686
GUID: 00000000-0000-0000-0000-000000000000
Language: en-us
RegionData: 0600
Require: com.real.retain-entity-for-setup
SupportsMaximumASMBandwidth: 1

RTSP/1.0 200 OK
CSeq: 2
Date: Wed, 19 Nov 2008 21:34:04 GMT
Session: 295275339-1;timeout=80
Set-Cookie: cbid=gkrgdmdlegfkeldmeoornpgqmrjrktlufkejkidlejdfklplqsnooppqlolnmtlugkhgohhl;path=/;expires=Thu,31-Dec-2037 23:59:59 GMT
Content-base: rtsp://rx-wes-sea69.rbn.com:554/farm/pull/tx-rbn-sea002:2459/farm/cspan/g2cspan/live/cspan2-g2.rm/
ETag: 295275339-1
Session: 295275339-1;timeout=80
Vary: User-Agent, ClientID
Content-type: application/sdp
x-real-usestrackid: 1
Content-length: 3067

v=0
o=- 496376 496376 IN IP4 66.203.121.84
s=C-SPAN2
i=<No author> 2008 C-SPAN
c=IN IP4 0.0.0.0
t=0 0
a=SdpplinVersion:1610641560
a=StreamCount:integer;3
a=control:*
a=Clock Start Time:integer;1781384002
a=Flags:integer;9
a=IsRealDataType:integer;1
a=RP11DisableRecording:integer;1
a=LiveStream:integer;1
a=Copyright:buffer;"MjAwOCBDLVNQQU4A"
a=Title:buffer;"Qy1TUEFOMgA="
a=ASMRuleBook:string;"#($Bandwidth >= 0),Stream1Bandwidth = 32041, Stream0Bandwidth = 167759;"
a=Audiences:string;"CSPAN 200k;"
a=audioMode:string;"voice"
a=Creation Date:string;"7/28/2008 7:58:48"
a=Description:string;"AutoGenerated EDF"
a=Generated By:string;"Helix Producer SDK 10.0 for Windows, Build 10.0.1.1337"
a=Modification Date:string;"7/28/2008 7:58:48"
a=videoMode:string;"normal"
m=video 0 RTP/AVP 101
b=AS:180
b=RR:6290
b=RS:2096
a=control:streamid=0
a=range:npt=0-
a=length:npt=0
a=rtpmap:101 x-pn-realvideo/1000
a=fmtp:101 
a=mimetype:string;"video/x-pn-realvideo"
a=AvgBitRate:integer;167759
a=AvgPacketSize:integer;1000
a=EndTime:integer;0
a=MaxBitRate:integer;167759
a=MaxPacketSize:integer;1000
a=MinimumSwitchOverlap:integer;0
a=Preroll:integer;5024
a=SeekGreaterOnSwitch:integer;1
a=StartTime:integer;0
a=OpaqueData:buffer;"TUxUSQADAAAAAAAAAAEAAAAiAAAAIlZJRE9SVjQwAUAA8AAMAAAAAAAeAAAACBAgQACAAA=="
a=RMFF 1.0 Flags:buffer;"AAMAAgAAAAI="
a=ASMRuleBook:string;"#($Bandwidth >= 167759),AverageBandwidth=167759,Priority=9;#($Bandwidth >= 167759),AverageBandwidth=0,Priority=5,OnDepend=\"0\";#($Bandwidth < 167759),TimestampDelivery=T,DropByN=T,priority=9;"
a=StreamName:string;"Video Stream"
m=audio 0 RTP/AVP 101
b=AS:34
b=RR:1201
b=RS:400
a=control:streamid=1
a=range:npt=0-
a=length:npt=0
a=rtpmap:101 x-pn-realaudio/1000
a=fmtp:101 
a=mimetype:string;"audio/x-pn-realaudio"
a=ActualPreroll:integer;2229
a=AvgBitRate:integer;32041
a=AvgPacketSize:integer;1500
a=EndTime:integer;0
a=MaxBitRate:integer;32041
a=MaxPacketSize:integer;1500
a=MinimumSwitchOverlap:integer;200
a=Preroll:integer;2229
a=SeekGreaterOnSwitch:integer;0
a=StartTime:integer;0
a=OpaqueData:buffer;"TUxUSQACAAAAAAABAAAAVi5yYf0ABQAALnJhNQAAABAABQAAAEYABwAAAi4AAAAAAAOqtAAAAAAAEAIuAF0AAAAAViIAAFYiAAAAEAABZ2VucmNvb2sBBwAAAAAACAEAAAICAAAY"
a=RMFF 1.0 Flags:buffer;"AAIAAgAA"
a=ASMRuleBook:string;"AverageBandwidth=32041,Priority=5;AverageBandwidth=0,Priority=5,OnDepend=\"0\", OffDepend=\"0\";"
a=StreamName:string;"Audio Stream"
m=application 0 RTP/AVP 101
b=AS:0
b=RR:3
b=RS:1
a=control:streamid=2
a=range:npt=0-
a=length:npt=0
a=rtpmap:101 x-pn-realevent/1000
a=fmtp:101 
a=mimetype:string;"application/x-pn-realevent"
a=AvgBitRate:integer;100
a=AvgPacketSize:integer;50
a=ContentVersion:integer;1048576
a=EndTime:integer;0
a=MaxBitRate:integer;100
a=MaxPacketSize:integer;500
a=Preroll:integer;1000
a=StartTime:integer;0
a=OpaqueData:buffer;"TUxUSQABAAAAAQAAAAA="
a=RMFF 1.0 Flags:buffer;"AAEAAg=="
a=ASMRuleBook:string;"TimeStampDelivery=T,priority=10,PNMKeyframeRule=T;"
a=StreamName:string;"Events Stream"
SETUP rtsp://rx-wes-sea69.rbn.com:554/farm/pull/tx-rbn-sea002:2459/farm/cspan/g2cspan/live/cspan2-g2.rm/streamid=0 RTSP/1.0
CSeq: 3
RealChallenge2: ff05992e364aab3122b2579a050d575e01d0a8e3, sd=f93a2505
RDTFeatureLevel: 3
Transport: x-real-rdt/mcast;client_port=6970;mode=play,x-real-rdt/udp;client_port=6970;mode=play,x-pn-tng/udp;client_port=6970;mode=play,RTP/AVP;unicast;client_port=6970-6971;mode=play,x-pn-tng/tcp;mode=play,x-real-rdt/tcp;mode=play,RTP/AVP/TCP;unicast;mode=play
User-Agent: RealMedia Player HelixDNAClient/10.0.1.338 (win32)
If-Match: 295275339-1

RTSP/1.0 200 OK
CSeq: 3
Date: Wed, 19 Nov 2008 21:34:05 GMT
Session: 295275339-1;timeout=80
Reconnect: true
RDTFeatureLevel: 3
StatsMask: 0
RealChallenge3: 3eaa38ffe1dafe42ddc7183ca83d80204f213d09,sdr=33efd1a8
Transport: x-real-rdt/udp;client_port=6970;server_port=25556

SETUP rtsp://rx-wes-sea69.rbn.com:554/farm/pull/tx-rbn-sea002:2459/farm/cspan/g2cspan/live/cspan2-g2.rm/streamid=1 RTSP/1.0
CSeq: 4
RDTFeatureLevel: 3
Transport: x-real-rdt/udp;client_port=6972;mode=play
User-Agent: RealMedia Player HelixDNAClient/10.0.1.338 (win32)
Session: 295275339-1

RTSP/1.0 200 OK
CSeq: 4
Date: Wed, 19 Nov 2008 21:34:05 GMT
Session: 295275339-1;timeout=80
RDTFeatureLevel: 3
StatsMask: 0
Transport: x-real-rdt/udp;client_port=6972;server_port=25556

SETUP rtsp://rx-wes-sea69.rbn.com:554/farm/pull/tx-rbn-sea002:2459/farm/cspan/g2cspan/live/cspan2-g2.rm/streamid=2 RTSP/1.0
CSeq: 5
RDTFeatureLevel: 3
Transport: x-real-rdt/udp;client_port=6974;mode=play
User-Agent: RealMedia Player HelixDNAClient/10.0.1.338 (win32)
Session: 295275339-1

RTSP/1.0 200 OK
CSeq: 5
Date: Wed, 19 Nov 2008 21:34:05 GMT
Session: 295275339-1;timeout=80
RDTFeatureLevel: 3
StatsMask: 0
Transport: x-real-rdt/udp;client_port=6974;server_port=25556

SET_PARAMETER rtsp://rx-wes-sea69.rbn.com:554/farm/pull/tx-rbn-sea002:2459/farm/cspan/g2cspan/live/cspan2-g2.rm RTSP/1.0
CSeq: 6
Subscribe: stream=0;rule=0,stream=0;rule=1,stream=1;rule=0,stream=1;rule=1,stream=2;rule=0
Session: 295275339-1

RTSP/1.0 200 OK
CSeq: 6
Date: Wed, 19 Nov 2008 21:34:09 GMT
Session: 295275339-1;timeout=80

SET_PARAMETER rtsp://rx-wes-sea69.rbn.com:554/farm/pull/tx-rbn-sea002:2459/farm/cspan/g2cspan/live/cspan2-g2.rm RTSP/1.0
CSeq: 7
SetDeliveryBandwidth: Bandwidth=498894;BackOff=0
Session: 295275339-1

PLAY rtsp://rx-wes-sea69.rbn.com:554/farm/pull/tx-rbn-sea002:2459/farm/cspan/g2cspan/live/cspan2-g2.rm RTSP/1.0
CSeq: 8
User-Agent: RealMedia Player HelixDNAClient/10.0.1.338 (win32)
Session: 295275339-1
Range: npt=0-
Bandwidth: 554327

RTSP/1.0 200 OK
CSeq: 7
Date: Wed, 19 Nov 2008 21:34:10 GMT
Session: 295275339-1;timeout=80

RTSP/1.0 200 OK
CSeq: 8
Date: Wed, 19 Nov 2008 21:34:10 GMT
Session: 295275339-1;timeout=80
RTP-Info: url=rtsp://rx-wes-sea69.rbn.com:554/farm/pull/tx-rbn-sea002:2459/farm/cspan/g2cspan/live/cspan2-g2.rm/streamid=0;seq=0;rtptime=0, url=rtsp://rx-wes-sea69.rbn.com:554/farm/pull/tx-rbn-sea002:2459/farm/cspan/g2cspan/live/cspan2-g2.rm/streamid=1;seq=0;rtptime=0, url=rtsp://rx-wes-sea69.rbn.com:554/farm/pull/tx-rbn-sea002:2459/farm/cspan/g2cspan/live/cspan2-g2.rm/streamid=2;seq=0;rtptime=0
RTCP-Interval: 250

this is from the stream at rtsp://rx-wes-sea69.rbn.com/farm/pull/tx-rbn-sea002:2459/farm/cspan/g2cspan/live/cspan2-g2.rm i think it is the US Senate.

all the blocks starting in a command like SETUP or OPTIONS are sent by the client and all others are sent by the client.

this looks like a very hard protocol to proxy in php.

i is possible i guess but VERY hard.

Scott.

ratcateme · November 19, 2008

just had a look at it runs the main data transfer over UDP not TCP and in my experience PHP is not very good with UDP

Scott.

Cyf · November 20, 2008

i can do it in classic asp on a different server but i started with that and got stuck also :S

what a nightmare!!

you got any ideas in asp (classic)?

ratcateme · November 20, 2008

nah i have never learned asp.

Scott.

Cyf · November 20, 2008

OK one other option i have...

There is also a url video.cgi that i can use to access the stream

the problem is that this requires authentication(box pops up asking for it)

but because im trying to read the stream from my php file it doesnt give me the option to enter the details just gives me a 401 error

401 Unauthorized
Your client does not have permission to get URL /mjpg/video.cgi from this server

do you know how i can force the username and password when i try and retreive it via the socket in PHP?

ratcateme · November 20, 2008

this is the header you need to add for HTTP auth

$out .= "Authorization: Basic " . base64_encode("Username:Password") . "\r\n";

Scott.

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PHP stream video file using fsockopen ( .wmf ) acting as proxy

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