Hello Christopher,
I've written a small program for you to reproduce the mentioned issue.
Just download and compile the latest live555 version and test this with it.
It seems that libcurl always expect a body from a GET_PARAMETER request, but
usually an empty GP should work as keepalive for a RTSP connection.
Please let me know if you need anything else.
Many thanks !
Massimo
________________________________
Da: Christopher Conroy <[email protected]>
A: libcurl development <[email protected]>
Inviato: Mar 23 marzo 2010, 16:25:36
Oggetto: Re: CURL_RTSPREQ_GET_PARAMETER timout
On Tue, Mar 23, 2010 at 6:20 AM, Massimo Callegari
<[email protected]> wrote:
>
> Hello everybody.
> I am developing a small RTSP client to receive data from a live555 server.
> Everything goes fine until I start to use the CURL_RTSPREQ_GET_PARAMETER
> method.
> In RTSP this is usually used to send a keepalive to the server. When I send
> it the curl_easy_perform gets stuck for one minute before returning 200 OK.
> After that any other command sent to the server returns "RTSP/1.0 405 Method
> Not Allowed".
> I tried to set a 5 seconds timeout, which reduce the operation timout but the
> 405 error remains there, so no other operation is possible.
>
> Has anyone experienced this so far ?
> Is this an internal libcurl fault or am I misunderstanding something ?
>
> Thanks in advance
> Massimo
Massimo, if possible could you send a small program that reproduces
the issue for you? I should be able to look into this tonight, but if
I have a test case in hand it will be a lot easier to debug. At the
very least, a tcpdump of the RTSP interaction between your app and the
server would be helpful.
--Chris
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/****************************************************************************
* INCLUDES
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
int main(int argc, char *argv[])
{
CURL *csession;
CURLcode res;
struct curl_slist *custom_msg = NULL;
char URL[256];
char request[256];
long rc;
int port = 48000;
if (argc < 2)
{
fprintf (stderr, "ERROR: enter a valid URL\n");
return -1;
}
csession = curl_easy_init();
if (csession == NULL)
return -1;
sprintf (URL, "%s", argv[1]);
curl_easy_setopt(csession, CURLOPT_URL, URL);
curl_easy_setopt(csession, CURLOPT_RTSP_STREAM_URI, URL);
curl_easy_setopt(csession, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(csession, CURLOPT_HEADER, 1);
/** retrieve OPTIONS */
curl_easy_setopt(csession, CURLOPT_RTSP_REQUEST, CURL_RTSPREQ_OPTIONS);
res = curl_easy_perform(csession);
res = curl_easy_getinfo(csession, CURLINFO_RESPONSE_CODE, &rc);
if((res == CURLE_OK) && rc)
{
fprintf(stderr, "OPTIONS Response Code: %ld\n\n", rc);
}
else
return -1;
/** send DESCRIBE */
custom_msg = curl_slist_append(custom_msg, "Accept: application/x-rtsp-mh,
application/rtsl, application/sdp");
curl_easy_setopt(csession, CURLOPT_RTSPHEADER, custom_msg);
curl_easy_setopt(csession, CURLOPT_RTSP_REQUEST, CURL_RTSPREQ_DESCRIBE);
res = curl_easy_perform(csession);
res = curl_easy_getinfo(csession, CURLINFO_RESPONSE_CODE, &rc);
if((res == CURLE_OK) && rc)
{
fprintf(stderr, "DESCRIBE Response Code: %ld\n\n", rc);
}
else
return -1;
/** send SETUP */
sprintf (request, "MP2T/H2221/UDP;unicast;client_port=%d", port);
curl_easy_setopt(csession, CURLOPT_RTSP_TRANSPORT, request);
curl_easy_setopt(csession, CURLOPT_RTSP_REQUEST, CURL_RTSPREQ_SETUP);
res = curl_easy_perform(csession);
res = curl_easy_getinfo(csession, CURLINFO_RESPONSE_CODE, &rc);
if((res == CURLE_OK) && rc)
{
fprintf(stderr, "SETUP Response Code: %ld\n\n", rc);
}
else
return -1;
/** send PLAY */
curl_easy_setopt(csession, CURLOPT_RTSP_REQUEST, CURL_RTSPREQ_PLAY);
res = curl_easy_perform(csession);
res = curl_easy_getinfo(csession, CURLINFO_RESPONSE_CODE, &rc);
if((res == CURLE_OK) && rc)
{
fprintf(stderr, "PLAY Response Code: %ld\n\n", rc);
}
else
return -1;
/** send GET_PARAMETER */
curl_easy_setopt(csession, CURLOPT_RTSP_REQUEST, CURL_RTSPREQ_GET_PARAMETER);
res = curl_easy_perform(csession);
res = curl_easy_getinfo(csession, CURLINFO_RESPONSE_CODE, &rc);
if((res == CURLE_OK) && rc)
{
fprintf(stderr, "GET_PARAMETER Response Code: %ld\n\n", rc);
}
else
return -1;
/** send TEARDOWN */
curl_easy_setopt(csession, CURLOPT_RTSP_REQUEST, CURL_RTSPREQ_TEARDOWN);
res = curl_easy_perform(csession);
res = curl_easy_getinfo(csession, CURLINFO_RESPONSE_CODE, &rc);
if((res == CURLE_OK) && rc)
{
fprintf(stderr, "TEARDOWN Response Code: %ld\n\n", rc);
}
else
return -1;
curl_easy_cleanup(csession);
return 0;
}
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