Steven Critchfield wrote: > On Fri, 2007-09-14 at 17:15 +0200, Klaus Darilion wrote: >> critch schrieb: >>> The addon would then be a transcoder of H223 data to the demuxed >>> audio/video/control frames using the library that is GPL licensed. >>> >>> This way is a lot more likely to get merged with the official releases >>> as it is the asterisk way, and requires little changes to the core of >>> the application. >> I agree. But extending the translation framework to translate >> AST_FRAME_VOICE(AST_FORMAT_H223) into AST_FRAME_VOICE(AST_FORMAT_AMR) >> and AST_FRAME_VIDEO(AST_FORMAT_H63_PLUS) is not easily done. Thus, to >> make 3G calls possible now I prefer the application, but if for example >> 1.6 allows translation between frame types then the application should >> be migrated in to translation framework. > > So let us go about this in an interim manner. > > Modify the ISDN channel drivers to hand up > AST_FRAME_VOICE(AST_FORMAT_H223) from them to asterisk. Your application > could request format AST_FORMAT_H223 such that there is no translation > required. From here you continue your current development as you are. > > The benefit here is that you get asterisk to the point of being able to > native bridge 3g calls, and you get to worry only about your app for now > while looking at how to get the translation layer to handle things > better in the future. > > Also when you request from your application the format AST_FORMAT_H223,
how do I do this (in lines of code)? klaus > you can see if asterisk was able to handle the request. If the call > wasn't a H223 call, asterisk couln't get you a H223 format and you will > know you don't have the data you are looking for and can fail in a > predictable manner. > > For instance, you could pass all your incoming calls into your 3g video > application as a brute force detection this way. If your app gets 3g > video stream, then it handles it the way you intend to, else it exits > and allows the call to pass to the rest of your normal extension logic. > > See how just a little effort yields lots of cool magic from the core > knowing what it is transfering around? _______________________________________________ Sign up now for AstriCon 2007! September 25-28th. http://www.astricon.net/ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-dev mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-dev
