How is WMRenderer created martomartasco[ at ]hotmail.com 5/3/2007 4:57:47 PM I am Detouring WMP and when I play a .wmv file from a URL the graph that is created has the "undocumented" WMRenderer Source Filter. How is this object created? Thru CoCreateInstance? Anyone know what the CLSID is? I can't find it in the registry. Furthurmore, is there anyway to find out what URL was specified? I believe I can get the URL from the WMP Player automation interface, but I'd rather get the URL from the DirectShow level. Regards.

Re: How is WMRenderer created "Alessandro Angeli" <nobody[ at ]nowhere.in.the.net> 5/3/2007 6:03:00 PM From: "martomartasco[ at ]hotmail.com" [Quoted Text] > I am Detouring WMP and when I play a .wmv file from a URL > the graph that is created has the "undocumented" > WMRenderer Source Filter. How is this object created? > Thru CoCreateInstance? > > Anyone know what the CLSID is? I can't find it in the > registry. You can ask a filter for its CLSID by calling IBaseFilter::GetClassID(). Of course, the filter can lie or not have a valid CLSID if it is not a registered class. The WMRenderer filter is WMP's internal source filter that wraps WMF's WMReader object in decompressed mode. It is not a registered class and there is no way to create it outside of WMP. > Furthurmore, is there anyway to find out what URL was > specified? I believe I can get the URL from the WMP > Player automation interface, but I'd rather get the URL > from the DirectShow level. Have you tried to call IFileSourceFilter::GetCurFile() on the source filter? -- // Alessandro Angeli // MVP :: DirectShow / MediaFoundation // mvpnews at riseoftheants dot com // http://www.riseoftheants.com/mmx/faq.htm

Re: How is WMRenderer created martomartasco[ at ]hotmail.com 5/3/2007 8:03:51 PM On May 3, 11:03 am, "Alessandro Angeli" <nob...[ at ]nowhere.in.the.net> wrote: [Quoted Text] > From: "martomarta...[ at ]hotmail.com" > > > I am Detouring WMP and when I play a .wmv file from a URL > > the graph that is created has the "undocumented" > > WMRenderer Source Filter. How is this object created? > > Thru CoCreateInstance? > > > Anyone know what the CLSID is? I can't find it in the > > registry. > > You can ask a filter for its CLSID by calling > IBaseFilter::GetClassID(). Of course, the filter can lie or > not have a valid CLSID if it is not a registered class. > > The WMRenderer filter is WMP's internal source filter that > wraps WMF's WMReader object in decompressed mode. It is not > a registered class and there is no way to create it outside > of WMP. > > > Furthurmore, is there anyway to find out what URL was > > specified? I believe I can get the URL from the WMP > > Player automation interface, but I'd rather get the URL > > from the DirectShow level. > > Have you tried to call IFileSourceFilter::GetCurFile() on > the source filter? > The filter doesn't expose that interface. Oh well. Do you know how WMP reads the stream from the URL? > -- > // Alessandro Angeli > // MVP :: DirectShow / MediaFoundation > // mvpnews at riseoftheants dot com > //http://www.riseoftheants.com/mmx/faq.htm

Re: How is WMRenderer created "Alessandro Angeli" <nobody[ at ]nowhere.in.the.net> 5/3/2007 8:21:15 PM From: "martomartasco[ at ]hotmail.com" [Quoted Text] > Do you know how WMP reads the stream from the URL? If you mean what component is used to receive/parse the ASF stream, that should be the WMReader object from the WMF runtime. If you mean how WMP passes the URL to the filter to be opened, I have no idea: the filter is internal and can provide any kind of custom interfaces. -- // Alessandro Angeli // MVP :: DirectShow / MediaFoundation // mvpnews at riseoftheants dot com // http://www.riseoftheants.com/mmx/faq.htm