gmane.comp.telephony.h323plus

swap audio record & player device

Eleoson Gonzales — 2008-12-01T18:41:16

Hello, I would like to use a bluetooth controlled mobile. basically if you connect the mobile to your pc the pc's speaker & mic will become the mobile's speaker & mic. Therefore, I will need to swap the recorder & player device so that h323plus will encode the speaker's audio (player device) and send it to remote endpoint, and decode the microphone's audio (record device) and send it to the local mobile phone. thanks in advance! regards, Eleoson

Re: how to support directshow

Ryan Yan — 2008-11-28T13:41:36

Re: how to support directshow

JobsGuo(Guo Huayong — 2008-11-28T13:33:00

Re: how to support directshow

Ryan Yan — 2008-11-28T13:17:37

Re: how to support directshow

Marcos Fábio Jardini — 2008-11-28T12:58:53

Re: how to support directshow

JobsGuo(Guo Huayong — 2008-11-28T11:37:43

Re: how to support directshow

Nyamul Hassan — 2008-11-28T11:02:13

Re: how to support directshow

Marcos Fábio Jardini — 2008-11-28T10:56:30

Hi Guo If you are using Visual Studio 2008, almost all libs are avaible for DirectShow. Only the Null Output Video Sink, necessary for proper work of Video Sampler Grabber, need some trick to work, the trick is copy the content of the header file of Null Video to a new file and remove the COM interfaces of DirectX9 surfaces, these interfaces need another headers that only avaible on DirectX SDK. You are able to find these tricks on CodeGuru site, searching for "Video Capture" This way saves one or two gigabytes of DirectX SDK. using cygwin or something like it? Other hint: ptbuildopts.h is generated by config application, sometimes config.in file need some attention to see if a positive search rule is not overlapping a negative rule. Other times you need to 'force' the config application passing hints to it like: --enable-ipv6 or --disable-ssh Again, see config.in for the rules they are using. If you manage to compile your code after some modification, dont forget to send back to this list ;) reg

Re: how to support directshow

Ryan Yan — 2008-11-28T07:06:23

Re: how to support directshow

JobsGuo(Guo Huayong — 2008-11-28T06:59:49

Re: how to support directshow

Ryan Yan — 2008-11-28T06:32:25

how to support directshow

JobsGuo(Guo Huayong — 2008-11-28T05:56:33

Hi,all. when I compile the ptlib-v2_0_1,I find the config in ptbuildopts.h show below: ///////////////////////////////////////////////// // // DirectX Support (Windows only) // #ifndef _WIN32_WCE #define P_DIRECTSOUND 1 #undef P_DIRECTSHOW #undef P_VFW_CAPTURE #endif So I can not get the directshow support.but I can get the directsound support.I indeed install directx 9.0c.so it can find the directx file. but why it can not find the directshow? Besides,I also can not find the dshow.h. Who can help me ?thanks! 2008-11-28 JobsGuo(Guo Huayong) Mobile：13918103120 QQ ： 360480589 MSN ： ghyhust< at >hotmail.com

t38modem and freebsd tty error

Christopher — 2008-11-25T19:04:40

Hello... I am trying to run t38modem on a freebsd 6.x server (also running hylafax). Apparently the t38modem binary cannot attach to the tty device. PseudoModemPty::OpenPty tcgetattr ptypa ERROR: Resource temporarily unavailable I have tried many different combinations of tty choices and args, but all fail in the same way. Am I missing something? Or is this a bug? I compiled with: ptlib-v2_0_1-4 ./configure --enable-openh323 gmake h323plus-v1_20_2 ./configure --enable-t38 gmake t38modem-1.0.1 gmake optnoshared [chrismcc< at >qwip t38modem-1.0.1]$ sudo ./obj_FreeBSD_x86_r/t38modem -p ttypa --no-gatekeeper --trace --trace --trace --trace T38Modem Version 1.0.1 by OpenH323 Project on Unix FreeBSD (6.2-RELEASE-p12-i386) 2008/11/25 10:52:15.110 T38ModemVersion 1.0.1 by OpenH323 Project on Unix FreeBSD (6.2-RELEASE-p12-i386) at 2008/11/25 10:52:15.111 2008/11/25 10:52:15.111 T38ModemT38Modem Version 1.0.1 on Unix FreeBSD (6.2-RELEASE-p12-i386) 2008/11/25 10:52:15.111 T38ModemPWLib

Re: openmcu/openh323 plus problem.

Marcos Fábio Jardini — 2008-11-05T10:41:39

The CVS code is neutral, compiles in any POSIX compliant system. You will need to inform to the 'configure' program the default system output folder and set proper enviroment variables, some systems need a little more tricks on the config.in file, but not the case of Debian. Last time I have compiled H323Plus in Linux was on the Debian Etch/4.0 2008/11/5 shinsei-it.com>

Re: IE element decode

Marcos Fábio Jardini — 2008-11-04T16:43:00

It is not very clear to me also how the internal mechanisms of OpenH323/H323Plus. One of the key modules of the PTLib (core to the H323Plus) is the implementation of ASN.1 PacketBinary Format. It would be like the equivalent of Java XML bindings, transforming the ASN binary notation in compact binary packages through classes that represent the hierarchy of the package. The methods that you mentioned are used by serializer and deserializer. To disassembly by hand a message from H.323 it is necessary to know what the class the returned PByteBuffer by Get____() belongs. See the CVS examples for MCU with NAT/Firewall Traversal H.460.18/19, there some H.420 messages are 'raw' manipulated to conform the specification. 2008/11/4 robertp siology.net>

IE element decode

robertp — 2008-11-04T12:53:14

lo, i've been harnessing the Q931 class of h323plus to decode packets off the wire, however i'm a little confused as to how h323plus decodes the contents of the information elements which are contained within Q931. i assumed (apparently wrongly) that you would do a check for an element by using Q931.HasIE(), get the byte array of the IE using Q931.GetIE(), then call something like Q931.decodeUserUserIE which returns a structure of some sort which can have methods such as getConferenceGuid() called upon it. I've done the first few steps upto GetIE(), and i now have a PBYTEARRAY of the IE, but i've no idea what to do with it now to decode its contents in a workable, consistent manner. I've poured through the h323+ code, but i cant seem to find where the code deals with this problem. perhaps h323pdu plays a role ??

Re: openmcu/openh323 plus problem.

Marcos Fábio Jardini — 2008-11-04T11:12:39

Hello Kulkarni 1st of all, debian repository is a bit outdated about OpenMCU, try always get the sources from sourceforge repository and try compile. Unfortunatly is it not so simple like 'install and use'.... you need enter at last one time on OpenMCU Config Page (by browser) and confirm/adjust some settings. MCU and Client can not run on same machine unless you set a different service port and rtp/udp port-range for the MCU or for the Client. Gnomemeeting can't find a codec that are common by client and MCU, so connection is droped (strange, at minimun by ITU H.323 specification each endpoint MUST accept PCM A/u-Law codecs, OpenMCU are compiled with build-in/static PCM codecs) Compiling the CVS code can be a little pain but worked fine with Netmeeting (not 100%, bug on netmeeting), Ekiga, DCSClient (our native/java mixed client) and other clients. 2008/11/4 shinsei-it.com>

openmcu/openh323 plus problem.

2008-11-04T04:05:33

Hi, I have installed openMCU version 2.2.1 (debian repository) OpenH323 version is libopenh323-1.19.1 ( debian repository) OpenMCU starts properly in daemon mode ( openmcu -d ) But netmeeting, Gnomemeeting and xmeeting are not able to connect. Gnomemeeting is giving error as " no comman codec" Can anybody help me on this to resolve this issue? Regards Amogh K This e-mail is confidential and may be legally privileged. If you are not the intended recipient, please notify the sender immediately and delete this e-mail. ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Re: bug in rtp.cxx

Jan Willamowius — 2008-10-28T23:12:34

Hi, I fixed a number of places in the CVS that caused compile problems when audio was disabled. I don't think we should maintain a forked version of PTLib. The current H323Plus CVS should compile against PTLib 2.2.1 and 2.3.1. But PTLib is a moving target... Regards, Jan robertp wrote:

bug in rtp.cxx

robertp — 2008-10-24T10:25:28

line 883 of rtp.cxx is bugged, you're deleting jitter, even if the audio disable has been used for the build. This causes a build error. Also, how reliant is h323plus on the forked sections of ptlib ? Its rather annoying having to build against a customised version. Would it be at all reasonable to make a motion towards merging the ptlib found in other sources such as the ubuntu repositories, and the ptlib given on the h323plus website ? Thanks in advance. - R

Re: How to split audio

Ryan Yan — 2008-10-24T07:15:22

RE: [h323plus] How to split audioHi, dansukcu! The best way is deriving H323Codec class and override "write" function (followings for example) and then use it in OpenAudioChannel function. BOOL H323_XXX_Audio_Codec::Write(const BYTE * buffer, unsigned length, const RTP_DataFrame & /*rtpFrame*/, unsigned & written) { ... } BOOL H323_XXX_Audio_Codec::WriteRaw(void * data, PINDEX length) { ... } ... If you want to do more process of the splited audio data, you may also need to implement your own SoundChannel. Best Wishes, Ryan From: dansukcu Sent: Friday, October 24, 2008 2:59 PM To: Ryan Yan ; h323plus< at >lists.packetizer.com Subject: RE: [h323plus] How to split audio Thank you Ryan, Will I implement this by deriving H323Codec class and override "write" function and then use it in OpenAudioChannel function or is there another way to do this? -----Original Message----- From: Ryan Yan [