static HRESULT WINAPI DSoundRender_PrepareReceive(BaseRenderer *iface, IMediaSample *pSample)
{
DSoundRenderImpl *This = impl_from_BaseRenderer(iface);
HRESULT hr;
AM_MEDIA_TYPE *amt;
if (IMediaSample_GetMediaType(pSample, &amt) == S_OK)
{
AM_MEDIA_TYPE *orig = &This->renderer.pInputPin->pin.mtCurrent;
WAVEFORMATEX *origfmt = (WAVEFORMATEX *)orig->pbFormat;
WAVEFORMATEX *newfmt = (WAVEFORMATEX *)amt->pbFormat;
if (origfmt->wFormatTag == newfmt->wFormatTag &&
origfmt->nChannels == newfmt->nChannels &&
origfmt->nBlockAlign == newfmt->nBlockAlign &&
origfmt->wBitsPerSample == newfmt->wBitsPerSample &&
origfmt->cbSize == newfmt->cbSize)
{
if (origfmt->nSamplesPerSec != newfmt->nSamplesPerSec)
{
hr = IDirectSoundBuffer_SetFrequency(This->dsbuffer,
newfmt->nSamplesPerSec);
if (FAILED(hr))
return VFW_E_TYPE_NOT_ACCEPTED;
FreeMediaType(orig);
CopyMediaType(orig, amt);
IMediaSample_SetMediaType(pSample, NULL);
}
}
else
return VFW_E_TYPE_NOT_ACCEPTED;
}
return S_OK;
}
static HRESULT WINAPI DSoundRender_Receive(BaseInputPin *pin, IMediaSample * pSample)
{
DSoundRenderImpl *This = (DSoundRenderImpl*)pin->pin.pinInfo.pFilter;
LPBYTE pbSrcStream = NULL;
LONG cbSrcStream = 0;
REFERENCE_TIME tStart, tStop;
HRESULT hr;
AM_MEDIA_TYPE *amt;
TRACE("%p %p\n", pin, pSample);
/* Slightly incorrect, Pause completes when a frame is received so we should signal
* pause completion here, but for sound playing a single frame doesn't make sense
*/
EnterCriticalSection(&This->filter.csFilter);
if (This->pInputPin->end_of_stream || This->pInputPin->flushing)
{
LeaveCriticalSection(&This->filter.csFilter);
return S_FALSE;
}
if (This->filter.state == State_Stopped)
{
LeaveCriticalSection(&This->filter.csFilter);
return VFW_E_WRONG_STATE;
}
if (IMediaSample_GetMediaType(pSample, &amt) == S_OK)
{
AM_MEDIA_TYPE *orig = &This->pInputPin->pin.mtCurrent;
WAVEFORMATEX *origfmt = (WAVEFORMATEX *)orig->pbFormat;
WAVEFORMATEX *newfmt = (WAVEFORMATEX *)amt->pbFormat;
if (origfmt->wFormatTag == newfmt->wFormatTag &&
origfmt->nChannels == newfmt->nChannels &&
origfmt->nBlockAlign == newfmt->nBlockAlign &&
origfmt->wBitsPerSample == newfmt->wBitsPerSample &&
origfmt->cbSize == newfmt->cbSize)
{
if (origfmt->nSamplesPerSec != newfmt->nSamplesPerSec)
{
hr = IDirectSoundBuffer_SetFrequency(This->dsbuffer,
newfmt->nSamplesPerSec);
if (FAILED(hr))
{
LeaveCriticalSection(&This->filter.csFilter);
return VFW_E_TYPE_NOT_ACCEPTED;
}
FreeMediaType(orig);
CopyMediaType(orig, amt);
IMediaSample_SetMediaType(pSample, NULL);
}
}
else
{
LeaveCriticalSection(&This->filter.csFilter);
return VFW_E_TYPE_NOT_ACCEPTED;
}
}
hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
if (FAILED(hr))
{
ERR("Cannot get pointer to sample data (%x)\n", hr);
LeaveCriticalSection(&This->filter.csFilter);
return hr;
}
hr = IMediaSample_GetTime(pSample, &tStart, &tStop);
if (FAILED(hr))
ERR("Cannot get sample time (%x)\n", hr);
else
MediaSeekingPassThru_RegisterMediaTime(This->seekthru_unk, tStart);
if (This->rtLastStop != tStart && (IMediaSample_IsDiscontinuity(pSample) == S_FALSE))
WARN("Unexpected discontinuity: Last: %u.%03u, tStart: %u.%03u\n",
(DWORD)(This->rtLastStop / 10000000), (DWORD)((This->rtLastStop / 10000)%1000),
(DWORD)(tStart / 10000000), (DWORD)((tStart / 10000)%1000));
This->rtLastStop = tStop;
if (IMediaSample_IsPreroll(pSample) == S_OK)
{
TRACE("Preroll!\n");
LeaveCriticalSection(&This->filter.csFilter);
return S_OK;
}
if (This->filter.state == State_Paused)
{
SetEvent(This->state_change);
LeaveCriticalSection(&This->filter.csFilter);
WaitForSingleObject(This->blocked, INFINITE);
EnterCriticalSection(&This->filter.csFilter);
if (This->filter.state == State_Stopped)
{
LeaveCriticalSection(&This->filter.csFilter);
return VFW_E_WRONG_STATE;
}
if (This->filter.state == State_Paused)
{
/* Assuming we return because of flushing */
TRACE("Flushing\n");
LeaveCriticalSection(&This->filter.csFilter);
return S_OK;
}
SetEvent(This->state_change);
}
cbSrcStream = IMediaSample_GetActualDataLength(pSample);
TRACE("Sample data ptr = %p, size = %d\n", pbSrcStream, cbSrcStream);
#if 0 /* For debugging purpose */
{
int i;
for(i = 0; i < cbSrcStream; i++)
{
if ((i!=0) && !(i%16))
TRACE("\n");
TRACE("%02x ", pbSrcStream[i]);
}
TRACE("\n");
}
#endif
hr = DSoundRender_SendSampleData(This, pbSrcStream, cbSrcStream);
SetEvent(This->state_change);
LeaveCriticalSection(&This->filter.csFilter);
return hr;
}
