July 2012 - freeswitch-dev@lists.freeswitch.org

[Freeswitch-dev] FreeSWITCH Conference Call Today
by Michael Collins 25 Jul '12

25 Jul '12

Hey there, We are having our conference call in less than an hour. The agenda is here: http://wiki.freeswitch.org/wiki/FS_weekly_2012_07_25 See you soon. -- Michael S Collins Twitter: @mercutioviz http://www.FreeSWITCH.org http://www.ClueCon.com http://www.OSTAG.org

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[Freeswitch-dev] mod_file_string - crashed FS
by Oleg Khovayko 25 Jul '12

25 Jul '12

Hi, After recent upgrade, FreeSWITCH was unable to start. During startup, it generates SIGSEGV, and terminated. I investigated, what happening, and found - problem was in the obsolete mod_file_string (see debug log below). I disabled load this module, and FS works OK. I think, need remove this module from the repository, or make another steps, for preserve this crash. Thanks, Oleg /usr/local/freeswitch/bin/freeswitch -u sip -g sip -hp -nonat Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x28901040 (LWP 100138)] 0x2818cb53 in switch_loadable_module_process (key=0x28bfdb80 "mod_file_string", new_module=0x295c51b8) at src/switch_loadable_module.c:321 321 for (i = 0; ptr->extens[i]; i++) { (gdb) p i No symbol "i" in current context. (gdb) l 316 for (ptr = new_module->module_interface->file_interface; ptr; ptr = ptr->next) { 317 if (!ptr->interface_name) { 318 switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Failed to load file interface from %s due to no interface name.\n", key); 319 } else { 320 int i; 321 for (i = 0; ptr->extens[i]; i++) { 322 switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Adding File Format '%s'\n", ptr->extens[i]); 323 if (switch_event_create(&event, SWITCH_EVENT_MODULE_LOAD) == SWITCH_STATUS_SUCCESS) { 324 switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "type", "file"); 325 switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "name", ptr->extens[i]); (gdb) p ptr $1 = (const switch_file_interface_t *) 0x295c5140 (gdb) p *ptr $2 = {interface_name = 0x294d62b3 "mod_file_string", file_open = 0x294d6040 <file_string_file_open>, file_close = 0x294d5cf0 <file_string_file_close>, file_truncate = 0, file_read = 0x294d5f80 <file_string_file_read>, file_write = 0, file_read_video = 0x294d5c20 <file_string_file_seek>, file_write_video = 0, file_seek = 0, file_set_string = 0x294d7520 <mod_file_string_module_interface+456>, file_get_string = 0, extens = 0x0, rwlock = 0x295c5188, refs = 0, reflock = 0x295c51a0, parent = 0x295c50c0, next = 0x0} (gdb) p i No symbol "i" in current context. (gdb) where #0 0x2818cb53 in switch_loadable_module_process (key=0x28bfdb80 "mod_file_string", new_module=0x295c51b8) at src/switch_loadable_module.c:321 #1 0x2818e32e in switch_loadable_module_load_module_ex (dir=0x2890d400 "/usr/local/freeswitch/mod", fname=Variable "fname" is not available. ) at src/switch_loadable_module.c:1374 #2 0x2818fe3f in switch_loadable_module_init (autoload=SWITCH_TRUE) at src/switch_loadable_module.c:1675 #3 0x2818586a in switch_core_init_and_modload (flags=68097, console=SWITCH_TRUE, err=0xbfbfebec) at src/switch_core.c:1941 #4 0x0804a560 in main (argc=7, argv=0xbfbfec4c) at src/switch.c:1027 (gdb)

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[Freeswitch-dev] Playback images as video
by Mariusz Czulada 24 Jul '12

24 Jul '12

Hi all, I didn't get a response on my previous post so I guess I have to write an app myself ;) Can somebody give me any hints how to implement this? Is it generally possible in fsw at current stage? I'd expect usage in a dialplan like this: [...] <action application="image_playback" data="/path/to/file1.png"/> - start streaming of an image <action application="playback" data="/path/to/file1.wav"/> [...] <action application="read" data="..."/> [...] <action application="image_playback" data="/path/to/file2.png"/> - start streaming of another one <action application="playback" data="/path/to/file2.wav"/> [...] <action application="read" data="..."/> [...] <action application="image_playback"/> - no data -> stop video streaming <action application="image_stop"/> - or maybe this way? TIA, Mariusz Dnia 14-03-2012 o godz. 22:07 Mariusz Czulada <manieq(a)wp.eu> napisał(a): > Hi all, > > I wonder if it is possible now to "playback" a still image > (jpeg/png/tiff) in a video stream? While in IVR a new user could also > view the same or similar text as transmited as voice. > > Regards, > > Mariusz > >

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[Freeswitch-dev] Important Information About Not Reporting Bugs on the Mailing List
by Michael Collins 23 Jul '12

23 Jul '12

Hello all, We've had yet another thread where someone wasn't sure if there was a but so they asked on the mailing list. I've written up some simple guidelines and put them on the world-famous Bugs wiki page: http://wiki.freeswitch.org/wiki/Reporting_Bugs#Important_Note.2C_Please_Read In short: not only should no one report bugs to the mailing list, no one should report symptoms to the mailing list and ask, "Is this a bug? Should I file a Jira?" If you have collected enough information to send an email to the list and ask whether or not to file a Jira then there's really no point in asking - just file the Jira. If you would like to discuss the symptoms on the mailing list then open the Jira *first* and then link to it in the message you send to the list. It's much better to open a Jira and find out later that it's not really a bug than it is to report a possible bug on the mailing list. Even if something is flagged as "not a bug" or "works as designed" there is still value in having the Jira ticket in the database for historical and research purposes. For those who have heard this discussion before, please be kind to the noobs and first-timers who may not appreciate the issues involved. Just point them to the bugs page. If someone repeatedly reports bugs to the mailing list then we will deliver the message with less delicacy. Thanks again for all your help. Using Jira will help keep Tony's life from become any more complicated than it already is. -- Michael S Collins Twitter: @mercutioviz http://www.FreeSWITCH.org http://www.ClueCon.com http://www.OSTAG.org

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[Freeswitch-dev] Status of VP8 codec in Freeswitch
by Muhammad Shahzad 23 Jul '12

23 Jul '12

A patch for VP8 codec pass-through support was submitted in April 09, 2012 by Seven Du, but it is still not committed to FS trunk. Can anyone update us on its status? http://jira.freeswitch.org/browse/FS-4092 If the patch works then i strongly recommend it should be committed to FS trunk, so we can have better integration with WebRTC clients. Thank you. -- Muhammad Shahzad ----------------------------------- CISCO Rich Media Communication Specialist (CRMCS) CISCO Certified Network Associate (CCNA) Cell: +92 334 422 40 88 MSN: shari_786pk(a)hotmail.com Email: shaheryarkh(a)googlemail.com

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[Freeswitch-dev] FreeSWITCH Weekly News and Notes
by Michael Collins 23 Jul '12

23 Jul '12

Hello all! Last week we enjoyed a nice conference call with Darren Schreiber<http://www.cluecon.com/speaker/98?cc12-0723>from 2600hz <http://www.2600hz.com?cc12-0723>. Darren gave us a follow up<http://wiki.freeswitch.org/wiki/FS_weekly_2012_07_18?cc12-0723>presentation to the original SIP 101 discussion<http://wiki.freeswitch.org/wiki/FS_weekly_2012_06_20?cc12-0723>that was held in June. This was a great presentation that went beyond the basics of SIP. We discussed important concepts like Via and Record Route headers and NOTIFY messages. SIP can do a lot, and with these two presentations we really have only scratched the surface. If we all bug Darren enough then perhaps we'll get a third presentation! The audio of the presentation is in the usual place<http://torrents.freeswitch.org/conf_call_2012-07-18.torrent?cc12-0723>and the slides will be available shortly. This week we will be hearing from the community. We will have a brief report from Dave Kompel who will get us up to speed on using Windows Advanced Firewall to implement Fail2Ban<http://wiki.freeswitch.org/wiki/Fail2ban?cc12-0723>-like functionality. After Dave speaks we will be opening things up for community discussion. Please bring your questions and topics! ClueCon 2012 <http://www.cluecon.com?cc12-0723> is shaping up nicely! We have recently added Ditech Networks<http://www.ditechnetworks.com?cc12-0723> , Bandwidth.com <http://www.bandwidth.com?cc12-0723>, and Yealink<http://www.yealink.com?cc12-0723>as sponsors. We are also happy to announce that Darrell Hensley <http://www.youtube.com/watch?v=sLBLCcSiAr0> will be speaking on the subject of Transitioning to Professional Voice<http://www.cluecon.com/presentation/transition_pro_voice?cc12-0723>. Darrell is the CEO of GMVoices <http://www.gmvoices.com?cc12-0723>, a ClueCon media sponsor for many years and the supplier of Callie<http://www.youtube.com/watch?v=IfkRNgM1IiA>, the voice of FreeSWITCH. We look forward to seeing Darrell in person again. As a quick reminder, if you register<http://www.cluecon.com/register?cc12-0723>by the end of the day on July 25th you will still receive four chances to win in the great ClueCon giveaway. See you in two weeks! -- Michael S Collins ClueCon Team http://www.cluecon.com 877-7-4ACLUE cc12-0723

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[Freeswitch-dev] What is the purpose of BLOCK in switch_event.c
by zhangkai.fswitch 23 Jul '12

23 Jul '12

hi, Recently I read the codes in switch_event.c, and I am confused about the purpose of BLOCK. There are 2 locks defined in switch_event.c: static switch_mutex_t *BLOCK = NULL; static switch_thread_rwlock_t *RWLOCK = NULL; My understanding is the RWLOCK is wrlocked when binding or unbinding an event callback function, and rdlocked when executing the callback. So the RWLOCK is enough to protect multi-threads from modifying the event binding list at the same time, why we need another mutex BLOCK? And in the codes, when never the mutex BLOCK is requested to be locked, the RWLOCK must already be locked for write. like this: switch_thread_rwlock_wrlock(RWLOCK); switch_mutex_lock(BLOCK); So if BLOCK is mean to protect something, the RWLOCK is already guaranteed the exclusiveness. Please tell me if I am wrong. Regards, Kai ZHANG

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[Freeswitch-dev] mod_dingaling does not set crypto
by Richard Screene 21 Jul '12

21 Jul '12

Hello, Using mod_dingaling I am unable to get it to append the crypto details to the session-accept Jingle stanza. The message is sent as: <iq xmlns="jabber:client" from="freeswitch(a)macbooks-macbook.local/talk" to="fff(a)macbooks-macbook.local/talk" type="set" id="300"> <jin:jingle xmlns:jin="urn:xmpp:jingle:1" action="session-accept" sid="233007325" initiator="fff(a)macbooks-macbook.local"> <jin:content name="audio" creator="initiator"> <rtp:description xmlns:rtp="urn:xmpp:jingle:apps:rtp:1" media="audio" ssrc="1351525407"> <rtp:payload-type id="0" name="PCMU" clockrate="8000" ptime="8000" maxptime="8000"> <rtp:parameter name="bitrate" value="64000"></rtp:parameter> </rtp:payload-type> </rtp:description> <p:transport xmlns:p="http://www.google.com/transport/p2p"></p:transport> </jin:content> </jin:jingle> <ses:session xmlns:ses="http://www.google.com/session" type="accept" id="233007325" initiator="fff(a)macbooks-macbook.local"> <pho:description xmlns:pho="http://www.google.com/session/phone"> <pho:payload-type id="0" name="PCMU" clockrate="8000" bitrate="64000" xmlns:pho="http://www.google.com/session/phone"></pho:payload-type> </pho:description> </ses:session> </iq> The full Wireshark trace can be found at http://filebin.ca/8JFB0hyFdHf On investigation it would seem that the TFLAG_SECURE flag is not being set. If I hack out the test on this flag in mdl_build_crypto() then the crypto is included in the message generated by Freeswitch: <iq xmlns="jabber:client" from="freeswitch(a)macbooks-macbook.local/talk" to="fff(a)macbooks-macbook.local/talk" type="set" id="301"> <jin:jingle xmlns:jin="urn:xmpp:jingle:1" action="session-accept" sid="7FnyqtQPPMNPn5h7nnJuRiv3GWg/bRAs" initiator="audio"> <jin:content name="audio" creator="initiator"> <rtp:description xmlns:rtp="urn:xmpp:jingle:apps:rtp:1" media="audio" ssrc="1351524387"> <rtp:payload-type id="0" name="PCMU" clockrate="8000" ptime="8000" maxptime="8000"> <rtp:parameter name="bitrate" value="64000"></rtp:parameter> </rtp:payload-type> <rtp:encryption> <rtp:crypto crypto-suite="AES_CM_128_HMAC_SHA1_80" key-params="inline:J8/3QjLtugHFof08KBIevXxUOBo3x8PdphPMx7J4" tag="1"></rtp:crypto> </rtp:encryption> </rtp:description> <p:transport xmlns:p="http://www.google.com/transport/p2p"></p:transport> </jin:content> </jin:jingle> <ses:session xmlns:ses="http://www.google.com/session" type="accept" id="7FnyqtQPPMNPn5h7nnJuRiv3GWg/bRAs" initiator="audio"> <pho:description xmlns:pho="http://www.google.com/session/phone"> <pho:payload-type id="0" name="PCMU" clockrate="8000" bitrate="64000" xmlns:pho="http://www.google.com/session/phone"></pho:payload-type> </pho:description> </ses:session> </iq> But, I can't see how this flag is ever set. Is this a bug or am I missing something very simple?? This is using Freeswitch commit fa1276d9492fd39ea733f7af301faed3556c9544 (dated 8th July 2012) The jingle profile is here http://filebin.ca/8JGG8ZhEUSh. Regards, Richard

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[Freeswitch-dev] Update On Donations For H.323
by Michael Collins 21 Jul '12

21 Jul '12

We have received several donations already - thank you very much! Just a reminder: please be sure to leave a note with your donation so that we know what your donation is for. Our target for getting Robert Jongbloed to Chicago from Australia is US $3000. We will let you know when we've met our goal and we'll give you status updates along the way. Thanks again for your generosity! -- Michael S Collins ClueCon Team http://www.cluecon.com 877-7-4ACLUE

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[Freeswitch-dev] How You Can Help With H.323 In FreeSWITCH
by Michael Collins 19 Jul '12

19 Jul '12

Greetings! We would like to let you know about an opportunity we all have to assist with H.323 support in FreeSWITCH. We are working on getting Robert Jongbloed, author of mod_opal and all around cool guy, to ClueCon 2012. Robert does a lot of work with H.323 and his presence with us at ClueCon would go a long way in helping us get H.323 fully implemented in FreeSWITCH. The challenge is that Robert lives in Australia! To that end we are taking up a collection to help defray the substantial travel costs. Here's what you can do: visit FreeSWITCH.org and click the Donate button. In your Paypal donation, click "Add special instructions to the seller" and make a note that this donation is to assist with getting Robert to ClueCon. We'll take care of the rest. Thanks again for all of your wonderful support! -- Michael S Collins ClueCon Team http://www.cluecon.com 877-7-4ACLUE

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