Re: [h323plus] h323plus and video codecs

-- Jan Willamowius, jan@willamowius.de, http://www.gnugk.org/ Vladimir Fekete wrote: > Hello all, > > I'd like to ask you for help/hint about video codecs in h323plus (v1.22). > Since I'm new I'm not sure I understand everything correctly. > > What I want to do : I don't have a camera, but I'd like to be able to send > some video through the net (between/using 2 MyPhone applications as > endpoints). > > Thanks to other tutorials I was able to rewrite the OpenAudioChannel, so I > was able to transmit wav file. I hoped it will be equally "easy" for the > video. Unfortunately, for MyPhone application, execution did not even > entered the OpenVideoChannel method. So I looked at the capabilities of my > end point and there are no video codecs. So, I'd like to ask you: > > Are the missing video codes my only problem ? (e.g. do I understand it > correctly, that I only need to rewrite OpenVideoChannel in order to read > from a file/stream ?) > > Are video codecs in h323plus represented as plugins only or there should be > some internal ones which works ? > > Could ffmpeg plugin for h323 help me ? > > I tried to compile ffmpeg plugin and use it. Compilation went fine (I get > the dll and 2 header files), so I tried to use it. Unfortunately due to lack > of documentation (other than code itself) I was able to find only classes as > OpalDynaCodecDLL from dynacodec.h which seemed to do the job (to allow me to > add h.263 capability and add video codec). However there is dllcodec.h file > missing in whole h323plus project (I was able to trace it down in openh323 > which is obsolete afaik) and also some classes were missing (such as > OpalDLLCodecInfo). I tried to download the OPAL project source codes, but I > was not able to find dllcodec.h. > > any hint will be appreciated. > > Best regards, > > Vladimir