Here's some sample code to show how easy it is to play an MP3 file using DirectShow:
#include <dshow.h>void main(void){ IGraphBuilder *pGraph; IMediaControl *pMediaControl; IMediaEvent *pEvent; CoInitialize(NULL); // Create the filter graph manager and query for interfaces. CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER, IID_IGraphBuilder, (void **)&pGraph); pGraph->QueryInterface(IID_IMediaControl, (void **)&pMediaControl); pGraph->QueryInterface(IID_IMediaEvent, (void **)&pEvent); // Build the graph. IMPORTANT: Change string to a file on your system. pGraph->RenderFile(L"C:\\Example.mp3", NULL); // Run the graph. pMediaControl->Run(); // Wait for completion. long evCode; pEvent->WaitForCompletion(INFINITE, &evCode); // Clean up. pMediaControl->Release(); pEvent->Release(); pGraph->Release(); CoUninitialize();} DirectShow looks very duanting at first due to the sheer number of interfaces but you really need to concern yourself with
IGraphBuilder, IMediaControl, IMediaEvent and IBasicAudio iterfaces. You can also use it to play other audio file types like AU, AIFF, SND, etc.
- Kaijin
Edited by - Kaijin on January 2, 2002 2:08:31 PM
