Пример #1
0
        ///////////////////////////////////////////////////////////////////////
        //  Name: CreateWavFile
        //  Description:  Creates a .wav file from an input file.
        ///////////////////////////////////////////////////////////////////////

        static void CreateWavFile(string sURL, string sOutputFile)
        {
            IMFByteStream   pStream   = null;
            IMFMediaSinkAlt pSink     = null;
            IMFMediaSource  pSource   = null;
            IMFTopology     pTopology = null;

            WavSinkNS.CWavSink pObj = null;

            HResult hr = MFExtern.MFCreateFile(MFFileAccessMode.Write, MFFileOpenMode.DeleteIfExist, MFFileFlags.None, sOutputFile, out pStream);

            MFError.ThrowExceptionForHR(hr);

            try
            {
                pObj  = new WavSinkNS.CWavSink(pStream);
                pSink = pObj as IMFMediaSinkAlt;

                // Create the media source from the URL.
                CreateMediaSource(sURL, out pSource);

                // Create the topology.
                CreateTopology(pSource, pSink, out pTopology);

                // Run the media session.
                RunMediaSession(pTopology);

                hr = pSource.Shutdown();
                MFError.ThrowExceptionForHR(hr);
            }
            finally
            {
                if (pStream != null)
                {
                    Marshal.ReleaseComObject(pStream);
                }
                if (pSource != null)
                {
                    Marshal.ReleaseComObject(pSource);
                }
                if (pTopology != null)
                {
                    Marshal.ReleaseComObject(pTopology);
                }
                //pObj.Dispose();
            }
        }
Пример #2
0
        ///////////////////////////////////////////////////////////////////////
        //  Name: CreateWavFile
        //  Description:  Creates a .wav file from an input file.
        ///////////////////////////////////////////////////////////////////////
        static void CreateWavFile(string sURL, string sOutputFile)
        {
            IMFByteStream pStream = null;
            IMFMediaSinkAlt pSink = null;
            IMFMediaSource pSource = null;
            IMFTopology pTopology = null;
            WavSinkNS.CWavSink pObj = null;

            int hr = MFExtern.MFCreateFile(MFFileAccessMode.Write, MFFileOpenMode.DeleteIfExist, MFFileFlags.None, sOutputFile, out pStream);
            MFError.ThrowExceptionForHR(hr);

            try
            {
                pObj = new WavSinkNS.CWavSink(pStream);
                pSink = pObj as IMFMediaSinkAlt;

                // Create the media source from the URL.
                CreateMediaSource(sURL, out pSource);

                // Create the topology.
                CreateTopology(pSource, pSink, out pTopology);

                // Run the media session.
                RunMediaSession(pTopology);

                hr = pSource.Shutdown();
                MFError.ThrowExceptionForHR(hr);
            }
            finally
            {
                if (pStream != null)
                {
                    Marshal.ReleaseComObject(pStream);
                }
                if (pSource != null)
                {
                    Marshal.ReleaseComObject(pSource);
                }
                if (pTopology != null)
                {
                    Marshal.ReleaseComObject(pTopology);
                }
                //pObj.Dispose();
            }
        }