How to add a codec-specific parameter to an asf profile string? Alexander Hars 10/17/2008 5:26:09 PM Hi, I am trying to configure an ASFWriter using a profile string (loaded from a file). That works fine, but does not allow me to specify codec parameters such as g_wszWMACMusicSpeechClassMode (I need it for the WMA Voice Codec). Isn't it possible to add the property into the prx profile string? Could anybody give me an example or point me to further information about the structure of the .prx file? Thank you very much, Alexander

Re: How to add a codec-specific parameter to an asf profile string? "Alessandro Angeli" <nobody[ at ]nowhere.in.the.net> 10/20/2008 4:45:24 PM From: "Alexander Hars" [...] [Quoted Text] > Isn't it possible to add the property into the prx > profile string? > > Could anybody give me an example or point me to further > information about the structure of the .prx file? AFAIK the PRX only contains the media types and a few properties, that is what you can access through IWMStreamConfig, which does not include g_wszWMACMusicSpeechClassMode. However it includes g_wszMusicSpeechClassMode (see IWMPropertyVault::SetProperty() in the WMF SDK). -- // Alessandro Angeli // MVP :: DirectShow / MediaFoundation // mvpnews at riseoftheants dot com // http://www.riseoftheants.com/mmx/faq.htm