librtmp url parsing

(http://stream-recorder.com/forum/showthread.php?t=12891)

Hi, i'm totally new to rtmpdump/librtmp and rtmp also. And it seams that this is my first post so i want to greet everybody :)

I'm trying to build a program for dumping rtmp streamed videos.

The url for such a stream is something like this:

Code:

rtmp://cp125301.edgefcs.net/ondemand/mp4:zdf/12/06/120621_1808_hko_vh.mp4

if i am trying to dump this with rtmpdump all seams to be fine

Code:

./rtmpdump.linux -r rtmp://cp125301.edgefcs.net/ondemand/mp4:zdf/12/06/120621_1808_hko_vh.mp4 -V -o zdf2.mp4

and in verbose mode its showing me the following extra infos:

Code:

DEBUG: Hostname : cp125301.edgefcs.net

DEBUG: Port     : 1935

DEBUG: Playpath : mp4:zdf/12/06/120621_1808_hko_vh.mp4

DEBUG: tcUrl    : rtmp://cp125301.edgefcs.net:1935/ondemand

DEBUG: app      : ondemand

but if i'm using librtmp its seams that the parser is doing some thing different here:

Code:

#include "rtmp.h"



#include <stdio.h>



int main()

{

  int retVal = 0;



  RTMP* r = RTMP_Alloc();



   retVal = RTMP_SetupURL(r, "rtmp://cp125301.edgefcs.net/ondemand/mp4:zdf/12/06/120621_1808_hko_vh.mp4");

  printf("\n\nhost: %s  \nplaypath: %s \ntcUrl: %s \napp: %s\n\n", r->Link.hostname.av_val, r->Link.playpath.av_val,r->Link.tcUrl.av_val, r->Link.app.av_val);



  retVal = RTMP_Connect(r, NULL);

  printf("connect r: %i\n", retVal);



  return 0;

}

output is :

Code:

host: cp125301.edgefcs.net/ondemand/mp4:zdf/12/06/120621_1808_hko_vh.mp4  

playpath: mp4:zdf/12/06/120621_1808_hko_vh.mp4 

tcUrl: rtmp://cp125301.edgefcs.net/ondemand/mp4:zdf/12/06/120621_1808_hko_vh.mp4 

app: ondemand/mp4:zdf/12/06/120621_1808_hko_vh.mp4



ERROR: WriteN, RTMP send error 104 (1 bytes)

connect r: 0

ERROR: RTMP_Connect1, handshake failed.

which differs from the values from rtmpdump and might be wrong?

i was trying to correct this by manually set the values in the RTMP record by hand as they appear in rtmpdump.. but maybe i missed something

Code:

  //manual set hostname

  AVal hostname;

  hostname.av_val = "cp125301.edgefcs.net";

  hostname.av_len = sizeof("cp125301.edgefcs.net");

  r->Link.hostname = hostname;



  //manual set playpath

  AVal playpath;

  playpath.av_val = "mp4:zdf/12/06/120621_1808_hko_vh.mp4";

  playpath.av_len = sizeof("mp4:zdf/12/06/120621_1808_hko_vh.mp4");

  r->Link.playpath = playpath;

//  r->Link.playpath0 = playpath;

//

  //manual tcUrl

  AVal tcUrl;

  tcUrl.av_val = "rtmp://cp125301.edgefcs.net:1935/ondemand";

  tcUrl.av_len = sizeof("rtmp://cp125301.edgefcs.net:1935/ondemand");

  r->Link.tcUrl = tcUrl;



  //manuel app

  AVal app;

  app.av_val = "ondemand";

  app.av_len = sizeof("ondemand");

  r->Link.app = app;

after all this seams to be not working and i get an error messages:

Code:

ERROR: WriteN, RTMP send error 104 (1 bytes)

ERROR: RTMP_Connect1, handshake failed.

someone any suggestions?

regards pythonner

Re: librtmp url parsing

have you even read the librtmp help. you need to pass the url in proper format.

Code:

"rtmp://cp125301.edgefcs.net/ondemand app=ondemand playpath=mp4:zdf/12/06/120621_1808_hko_vh.mp4"

also you are missing RTMP_Init(). you also need to initialize Winsock.

Re: librtmp url parsing

Thx,

Yes i read it, but im not fully into this weird rtmp uri thing. i missed the RTMP_Init() when i pasted my messy code, but its existing.

regarding winsocks - im developing under linux and also aiming for android. where is the point the sockets come in to play?

after modifying the url as u suggested the program stucks at RTMP_SetupURL with debugger :

Code:

[Thread debugging using libthread_db enabled]

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Single stepping until exit from function RTMP_SetupURL,

which has no line number information.

Quit

Re: librtmp url parsing

Quote:

Originally Posted by pythoneer (Post 48093)

regarding winsocks - im developing under linux and also aiming for android. where is the point the sockets come in to play?

Winsock initialization is only required for windows. are you sure you are using latest version of librtmp because it seems that server is dropping the connection after handshake failure which shouldn't be the case if you are using latest librtmp. Error 104 occurs when connection is closed by remote end.

Re: librtmp url parsing

Quote:

Originally Posted by KSV (Post 48099)

Winsock initialization is only required for windows.

ok thx

Quote:

Originally Posted by KSV (Post 48099)

are you sure you are using latest version of librtmp

yes i cloned it from here git://git.ffmpeg.org/rtmpdump

but after i used the correct version of the url from you i get a segmentation fault

Code:

#0 0x00007f55fa627071 in RTMP_SetupURL () from /usr/lib/x86_64-linux-gnu/librtmp.so.0

am i messed something up with the 32/64 bit stuff?