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00032 #include "stdafx.h"
00033 #include "speexdecodeoutputpin.h"
00034
00035 SpeexDecodeOutputPin::SpeexDecodeOutputPin(SpeexDecodeFilter* inParentFilter, CCritSec* inFilterLock, vector<CMediaType*> inAcceptableMediaTypes)
00036 : AbstractTransformOutputPin(inParentFilter, inFilterLock,NAME("SpeexDecodeOutputPin"), L"PCM Out", 65536, 20, inAcceptableMediaTypes)
00037 {
00038
00039
00040 }
00041 SpeexDecodeOutputPin::~SpeexDecodeOutputPin(void)
00042 {
00043
00044
00045 }
00046
00047 STDMETHODIMP SpeexDecodeOutputPin::NonDelegatingQueryInterface(REFIID riid, void **ppv)
00048 {
00049 if (riid == IID_IMediaSeeking) {
00050 *ppv = (IMediaSeeking*)this;
00051 ((IUnknown*)*ppv)->AddRef();
00052 return NOERROR;
00053 }
00054
00055 return CBaseOutputPin::NonDelegatingQueryInterface(riid, ppv);
00056 }
00057 HRESULT SpeexDecodeOutputPin::CreateAndFillFormatBuffer(CMediaType* outMediaType, int inPosition)
00058 {
00059 if (inPosition == 0) {
00060 WAVEFORMATEX* locWaveFormat = (WAVEFORMATEX*)outMediaType->AllocFormatBuffer(sizeof(WAVEFORMATEX));
00061 locWaveFormat->wFormatTag = WAVE_FORMAT_PCM;
00062 locWaveFormat->nChannels = (WORD)(((SpeexDecodeFilter*)m_pFilter)->mSpeexFormatInfo->numChannels);
00063 locWaveFormat->nSamplesPerSec = ((SpeexDecodeFilter*)m_pFilter)->mSpeexFormatInfo->samplesPerSec;
00064 locWaveFormat->wBitsPerSample = 16;
00065 locWaveFormat->nBlockAlign = (locWaveFormat->nChannels) * (locWaveFormat->wBitsPerSample >> 3);
00066 locWaveFormat->nAvgBytesPerSec = ((locWaveFormat->nChannels) * (locWaveFormat->wBitsPerSample >> 3)) * locWaveFormat->nSamplesPerSec;
00067 locWaveFormat->cbSize = 0;
00068 return S_OK;
00069 } else {
00070 return S_FALSE;
00071 }
00072 }