The DMO Wrapper filter enables a Direct Show application to use a Direct X Media Object ( DMO) within a filter graph. The filter wraps the DMO and handles all the details of using the DMO, such as passing data to and from the DMO. Also, the filter aggregates the DMO, so the application can query the filter for any COM interfaces that the DMO exposes. Remarks Limitations The DMO Wrapper has the following limitations: It does not support DMOs with zero inputs, multiple inputs, or zero outputs. ( It does support DMOs with one input and multiple outputs.) It does not support custom transports. All data transport is done through the IMem Input Pin interface. It does not use the IMedia Object In Place interface; all processing is done using IMedia Object methods. Pins For each input stream on the DMO, the filter creates a corresponding input pin. For each output stream, it creates a corresponding output pin. The media types that each pin supports depends on the DMO Encoder Interfaces If the DMO is a video encoder or an audio encoder, the output pin exposes the IAMStream Config interface. If the DMO is a video encoder, the output pin also exposes the IAMVideo Compression interface. In both cases, if the DMO supports the interface, the pin delegates to the DMO. Otherwise, the pin provides its own implementation. Streaming The filter uses the IMem Input Pin interface to handle all streaming. It does not support IAsync Reader connections. The filter calls IMedia Object: Process Output on the DMO only when it receives data from upstream (including end-of-stream notifications). Therefore, it does not support DMOs with zero input streams. Seeking All seek requests are passed to the upstream filter, through the first input pin on the DMO Wrapper. For multiple-output DMOs, this means that the upstream filter might receive multiple seek requests when the application seeks the graph. Merit Direct Show.
In response to previous comments: I had the same problem when trying to convert AC3 to MP2, before realizing that I needed to click Too LAME button and change setting for encoding engine from Too LAME to MP2 Enc.dll. After that all is fine. About Notepad opening: Whenever processing is stopped, completes, or ends abruptly, it always brings up the log in Notepad. Maybe this is what's happening for you. Log notes of the most recent encode (and maybe attempts, too?) will be at the bottom, so you can jump to those using CTRL- END. I think there's a way to turn off logging, if you wish, but I haven't tried. My own comments: I'm not a fan of the GUI, but this program certainly does everything I want it to, and quickly at that. It's just something of a struggle to achieve the results I want, whenever I want to do something new.
Download Now