public void Mp3ToWAV(string FileSource, string FileDest)
{
// 0. filename
string sfname = "Source File";
graphBuilder.AddSourceFilter(FileSource, sfname);
IBaseFilter file = graphBuilder.FindFilterByName(sfname);
// 1. mpeg1 stream splitter
DSMPEG1StreamSplittter msf = new DSMPEG1StreamSplittter();
hresult = graphBuilder.AddFilter(msf.BaseFilter, msf.Name);
Marshal.ThrowExceptionForHR(hresult);
// 2. acm wrapper
DSACMWrapper awf = new DSACMWrapper();
hresult = graphBuilder.AddFilter(awf.BaseFilter, awf.Name);
Marshal.ThrowExceptionForHR(hresult);
// 3. acm wrapper
DSACMWrapper awf2 = new DSACMWrapper();
awf2.Name += "2";
hresult = graphBuilder.AddFilter(awf2.BaseFilter, awf2.Name);
Marshal.ThrowExceptionForHR(hresult);
// 4. WAV Dest {3C78B8E2-6C4D-11D1-ADE2-0000F8754B99}
DSWAVDest wdf = new DSWAVDest();
hresult = graphBuilder.AddFilter(wdf.BaseFilter, wdf.Name);
Marshal.ThrowExceptionForHR(hresult);
// 5. File writer {8596E5F0-0DA5-11D0-BD21-00A0C911CE86}
DSFileWriter fwf = new DSFileWriter();
fwf.FileSinkFilter.SetFileName(FileDest, null);
hresult = graphBuilder.AddFilter(fwf.BaseFilter, fwf.Name);
Marshal.ThrowExceptionForHR(hresult);
// 6. Connection
graphBuilder.ConnectFilters(file, msf.BaseFilter);
graphBuilder.ConnectFilters(msf.BaseFilter, awf.BaseFilter);
graphBuilder.ConnectFilters(awf.BaseFilter, awf2.BaseFilter);
graphBuilder.ConnectFilters(awf2.BaseFilter, wdf.BaseFilter);
graphBuilder.ConnectFilters(wdf.BaseFilter, fwf.BaseFilter);
IPin outPin = awf2.BaseFilter.FindPin(PinDirection.Output);
AmMediaType media = GetMinimumFreq(outPin);
IAMStreamConfig cfg = (IAMStreamConfig)outPin;
cfg.SetFormat(media);
outPin.Dispose();
// 6. Render
graphBuilder.RenderFile(FileSource, null);
mediaControl.Run();
Thread.Sleep(1000);
mediaControl.Stop();
msf.Dispose();
awf.Dispose();
wdf.Dispose();
fwf.Dispose();
}
public void Splitter(string FileName)
{
// 0. filename
string sfname = "Source File";
graphBuilder.AddSourceFilter(FileName, sfname);
IBaseFilter file = graphBuilder.FindFilterByName(sfname);
// 1. mpeg1 stream splitter "336475D0-942A-11CE-A870-00AA002FEAB5"
// split stream on audio and video
DSMPEG1StreamSplittter ssf = new DSMPEG1StreamSplittter();
graphBuilder.AddFilter(ssf.BaseFilter, ssf.Name);
// 2. ACM Wrapper "6A08CF80-0E18-11CF-A24D-0020AFD79767"
// decode from mpeg1-layer 3 to pcm
DSACMWrapper awf = new DSACMWrapper();
graphBuilder.AddFilter(awf.BaseFilter, awf.Name);
// 3. sample grabber "C1F400A0-3F08-11D3-9F0B-006008039E37"
DSSampleGrabber sgf = new DSSampleGrabber();
graphBuilder.AddFilter(sgf.BaseFilter, sgf.Name);
ISampleGrabber sgr = (ISampleGrabber)sgf.BaseFilter;
// 4. null renderer "C1F400A4-3F08-11D3-9F0B-006008039E37"
DSNullRenderer nrf = new DSNullRenderer();
graphBuilder.AddFilter(nrf.BaseFilter, nrf.Name);
graphBuilder.ConnectFilters(file, ssf.BaseFilter);
graphBuilder.ConnectFilters(ssf.BaseFilter, awf.BaseFilter);
graphBuilder.ConnectFilters(awf.BaseFilter, sgf.BaseFilter);
graphBuilder.ConnectFilters(sgf.BaseFilter, nrf.BaseFilter);
SGCallback sg = new SGCallback();
sgr.SetBufferSamples(false);
hresult = sgr.SetOneShot(false);
ShowMsg(hresult.ToString("x"));
hresult = sgr.SetCallback(sg, 0);
ShowMsg(hresult.ToString("x"));
// Render
graphBuilder.RenderFile(FileName, null);
mediaControl.Run();
Thread.Sleep(2000);
mediaControl.Stop();
ssf.Dispose();
awf.Dispose();
sgf.Dispose();
nrf.Dispose();
}
