int DirectShowPlayerService::findStreamTypes(IBaseFilter *source) const
{
QVarLengthArray<IBaseFilter *, 16> filters;
source->AddRef();
filters.append(source);
int streamTypes = 0;
while (!filters.isEmpty()) {
IEnumPins *pins = 0;
IBaseFilter *filter = filters[filters.size() - 1];
filters.removeLast();
if (SUCCEEDED(filter->EnumPins(&pins))) {
for (IPin *pin = 0; pins->Next(1, &pin, 0) == S_OK; pin->Release()) {
PIN_DIRECTION direction;
if (pin->QueryDirection(&direction) == S_OK && direction == PINDIR_OUTPUT) {
AM_MEDIA_TYPE connectionType;
if (SUCCEEDED(pin->ConnectionMediaType(&connectionType))) {
IPin *peer = 0;
if (connectionType.majortype == MEDIATYPE_Audio) {
streamTypes |= AudioStream;
} else if (connectionType.majortype == MEDIATYPE_Video) {
streamTypes |= VideoStream;
} else if (SUCCEEDED(pin->ConnectedTo(&peer))) {
PIN_INFO peerInfo;
if (SUCCEEDED(peer->QueryPinInfo(&peerInfo)))
filters.append(peerInfo.pFilter);
peer->Release();
}
} else {
streamTypes |= findStreamType(pin);
}
}
}
}
filter->Release();
}
return streamTypes;
}
void WINAPI DumpGraph(IFilterGraph *pGraph, DWORD dwLevel)
{
if( !pGraph )
{
return;
}
IEnumFilters *pFilters;
DbgLog((LOG_TRACE,dwLevel,TEXT("DumpGraph [%x]"), pGraph));
if (FAILED(pGraph->EnumFilters(&pFilters))) {
DbgLog((LOG_TRACE,dwLevel,TEXT("EnumFilters failed!")));
}
IBaseFilter *pFilter;
ULONG n;
while (pFilters->Next(1, &pFilter, &n) == S_OK) {
FILTER_INFO info;
if (FAILED(pFilter->QueryFilterInfo(&info))) {
DbgLog((LOG_TRACE,dwLevel,TEXT(" Filter [%x] -- failed QueryFilterInfo"), pFilter));
} else {
QueryFilterInfoReleaseGraph(info);
// !!! should QueryVendorInfo here!
DbgLog((LOG_TRACE,dwLevel,TEXT(" Filter [%x] '%ls'"), pFilter, info.achName));
IEnumPins *pins;
if (FAILED(pFilter->EnumPins(&pins))) {
DbgLog((LOG_TRACE,dwLevel,TEXT("EnumPins failed!")));
} else {
IPin *pPin;
while (pins->Next(1, &pPin, &n) == S_OK) {
PIN_INFO info;
if (FAILED(pPin->QueryPinInfo(&info))) {
DbgLog((LOG_TRACE,dwLevel,TEXT(" Pin [%x] -- failed QueryPinInfo"), pPin));
} else {
QueryPinInfoReleaseFilter(info);
IPin *pPinConnected = NULL;
HRESULT hr = pPin->ConnectedTo(&pPinConnected);
if (pPinConnected) {
DbgLog((LOG_TRACE,dwLevel,TEXT(" Pin [%x] '%ls' [%sput]")
TEXT(" Connected to pin [%x]"),
pPin, info.achName,
info.dir == PINDIR_INPUT ? TEXT("In") : TEXT("Out"),
pPinConnected));
pPinConnected->Release();
// perhaps we should really dump the type both ways as a sanity
// check?
if (info.dir == PINDIR_OUTPUT) {
AM_MEDIA_TYPE mt;
hr = pPin->ConnectionMediaType(&mt);
if (SUCCEEDED(hr)) {
DisplayType(TEXT("Connection type"), &mt);
FreeMediaType(mt);
}
}
} else {
DbgLog((LOG_TRACE,dwLevel,
TEXT(" Pin [%x] '%ls' [%sput]"),
pPin, info.achName,
info.dir == PINDIR_INPUT ? TEXT("In") : TEXT("Out")));
}
}
pPin->Release();
}
pins->Release();
}
}
pFilter->Release();
}
pFilters->Release();
}
void gui::dx::audio_playerX::initialize_speedup_filter() {
if (speedup_filter_available_valid && !speedup_filter_available) {
// We don't seem to have the filter. Too bad.
return;
}
// Either the filter exists or we haven't tried yet. Let's try to create
// it and remember whether it worked.
IBaseFilter *pNewFilter = NULL;
HRESULT res;
res = CoCreateInstance(CLSID_TPBVupp69, NULL, CLSCTX_INPROC_SERVER,
IID_IBaseFilter, (void**)&pNewFilter);
if (res != S_OK) {
traceX("dx_audio_player: Speedup filter not available, error 0x%x", res);
speedup_filter_available = false;
speedup_filter_available_valid = true;
return;
}
res = m_graph_builder->AddFilter(pNewFilter, NULL);
if (res != S_OK) {
traceX("dx_audio_player: AddFilter(Speedup filter): error 0x%x", res);
pNewFilter->Release();
return;
}
speedup_filter_available = true;
speedup_filter_available_valid = true;
// AM_DBG lib::debugX("dx_audio_player: added speedup filter to graph");
// Next step: find out where we want to add the filter to the graph.
// We iterate over the filter graph, then for each item in the graph
// we iterate over the connected output pins util we find one we like.
IPin *pOutputPin = NULL;
IPin *pInputPin = NULL;
IEnumFilters *pEnumFilters = NULL;
res = m_graph_builder->EnumFilters(&pEnumFilters);
if (res != S_OK) {
traceX("dx_audio_filter: EnumFilters: error 0x%x", res);
return;
}
IBaseFilter *pCurFilter;
while (pOutputPin == NULL && (res=pEnumFilters->Next(1, &pCurFilter, NULL)) == S_OK) {
AM_DBG {
FILTER_INFO info;
LPWSTR vendorInfo;
res = pCurFilter->QueryFilterInfo(&info);
if (res != S_OK) info.achName[0] = 0;
res = pCurFilter->QueryVendorInfo(&vendorInfo);
if (res != S_OK) vendorInfo = L"";
//ambulant::lib::textptr tInfo(info.achName);
//ambulant::lib::textptr tVendorInfo(vendorInfo);
//lib::debugX("dx_audio_filter: filter found: '%s' vendor '%s'", tInfo.c_str(), tVendorInfo.c_str());
}
IEnumPins *pEnumPins;
res = pCurFilter->EnumPins(&pEnumPins);
IPin *pCurPin;
while (pOutputPin == NULL && (res=pEnumPins->Next(1, &pCurPin, NULL)) == S_OK) {
AM_MEDIA_TYPE mediaType;
PIN_DIRECTION curPinDir;
res = pCurPin->QueryDirection(&curPinDir);
HRESULT res2 = pCurPin->ConnectionMediaType(&mediaType);
if (res == S_OK &&
res2 == S_OK &&
curPinDir == PINDIR_OUTPUT &&
mediaType.majortype == MEDIATYPE_Audio&&
mediaType.subtype == MEDIASUBTYPE_PCM){
pOutputPin = pCurPin;
res = pOutputPin->ConnectedTo(&pInputPin);
if (res != S_OK) {
// This output pin was the correct type, but not connected.
// So it cannot be the one we're looking for.
pOutputPin = pInputPin = NULL;
} else {
// Found it!
pOutputPin->AddRef();
pInputPin->AddRef();
}
}
if (res2 == S_OK) {
if (mediaType.cbFormat != 0) {
CoTaskMemFree((PVOID)mediaType.pbFormat);
}
}
pCurPin->Release();
}
if (res != S_FALSE && res != S_OK)
traceX("dx_audio_filter: enumerating pins: error 0x%x", res);
pEnumPins->Release();
pCurFilter->Release();
}
if (res != S_FALSE && res != S_OK)
traceX("dx_audio_filter: enumerating filters: error 0x%x", res);
pEnumFilters->Release();
// We have the correct pins now.
if (pOutputPin) {
traceX("dx_audio_filter: found the right pins!");
} else {
traceX("dx_audio_filter: could not find a good pin");
pOutputPin->Release();
pInputPin->Release();
return;
}
// Now we need to find the pins on our speedup filter.
IPin *pFilterInputPin = NULL;
IPin *pFilterOutputPin = NULL;
IEnumPins *pEnumPins;
res = pNewFilter->EnumPins(&pEnumPins);
IPin *pCurPin;
while (res=pEnumPins->Next(1, &pCurPin, NULL) == S_OK) {
PIN_DIRECTION pinDir;
res = pCurPin->QueryDirection(&pinDir);
//assert(res == S_OK);
if (pinDir == PINDIR_INPUT) {
if (pFilterInputPin) {
traceX("dx_audio_filter: multiple input pins on filter");
goto bad;
}
pFilterInputPin = pCurPin;
pFilterInputPin->AddRef();
} else {
if (pFilterOutputPin) {
traceX("dx_audio_filter: multiple output pins on filter");
goto bad;
}
pFilterOutputPin = pCurPin;
pFilterOutputPin->AddRef();
}
}
if (!pFilterInputPin) {
traceX("dx_audio_filter: no input pin on filter");
goto bad;
}
if (!pFilterOutputPin) {
traceX("dx_audio_filter: no output pin on filter");
goto bad;
}
// We have everything. Sever the old connection and insert the filter.
res = m_graph_builder->Disconnect(pOutputPin);
if (res) {
traceX("dx_audio_filter: Severing old connection: error 0x%x", res);
goto bad;
}
res = m_graph_builder->Disconnect(pInputPin);
if (res) {
traceX("dx_audio_filter: Severing old connection: error 0x%x", res);
goto bad;
}
res = m_graph_builder->Connect(pOutputPin, pFilterInputPin);
if (res) {
traceX("dx_audio_filter: Creating filter input connection: error 0x%x", res);
goto bad;
}
res = m_graph_builder->Connect(pFilterOutputPin, pInputPin);
if (res) {
traceX("dx_audio_filter: Creating filter output connection: error 0x%x", res);
goto bad;
}
// Finally remember the interface to set speedup/slowdown, and register ourselves
// in the global pool (so Amis can change our speed).
res = pNewFilter->QueryInterface(IID_IVuppInterface, (void**) &m_audio_speedup);
if (res != S_OK) {
traceX("dx_audio_filter: filter does not provide IVuppInterface");
goto bad;
}
set_rate(s_current_playback_rate);
bad:
if (pOutputPin) pOutputPin->Release();
if (pInputPin) pInputPin->Release();
if (pFilterOutputPin) pFilterOutputPin->Release();
if (pFilterInputPin) pFilterInputPin->Release();
return;
}
HRESULT FindRenderer(IGraphBuilder *pGB, const GUID *mediatype, IBaseFilter **ppFilter)
{
HRESULT hr;
IEnumFilters *pEnum = NULL;
IBaseFilter *pFilter = NULL;
IPin *pPin;
ULONG ulFetched, ulInPins, ulOutPins;
BOOL bFound=FALSE;
// Verify graph builder interface
if (!pGB)
return E_NOINTERFACE;
// Verify that a media type was passed
if (!mediatype)
return E_POINTER;
// Clear the filter pointer in case there is no match
if (ppFilter)
*ppFilter = NULL;
// Get filter enumerator
hr = pGB->EnumFilters(&pEnum);
if (FAILED(hr))
return hr;
pEnum->Reset();
// Enumerate all filters in the graph
while(!bFound && (pEnum->Next(1, &pFilter, &ulFetched) == S_OK))
{
#ifdef DEBUG
// Read filter name for debugging purposes
FILTER_INFO FilterInfo;
TCHAR szName[256];
hr = pFilter->QueryFilterInfo(&FilterInfo);
if (SUCCEEDED(hr))
{
// Show filter name in debugger
#ifdef UNICODE
lstrcpy(szName, FilterInfo.achName);
#else
WideCharToMultiByte(CP_ACP, 0, FilterInfo.achName, -1, szName, 256, 0, 0);
#endif
FilterInfo.pGraph->Release();
}
#endif
// Find a filter with one input and no output pins
hr = CountFilterPins(pFilter, &ulInPins, &ulOutPins);
if (FAILED(hr))
break;
if ((ulInPins == 1) && (ulOutPins == 0))
{
// Get the first pin on the filter
pPin=0;
pPin = GetInPin(pFilter, 0);
// Read this pin's major media type
AM_MEDIA_TYPE type= {0};
hr = pPin->ConnectionMediaType(&type);
if (FAILED(hr))
break;
// Is this pin's media type the requested type?
// If so, then this is the renderer for which we are searching.
// Copy the interface pointer and return.
if (type.majortype == *mediatype)
{
// Found our filter
*ppFilter = pFilter;
bFound = TRUE;;
}
// This is not the renderer, so release the interface.
else
pFilter->Release();
// Delete memory allocated by ConnectionMediaType()
FreeMediaType(type);
}
else
{
// No match, so release the interface
pFilter->Release();
}
}
pEnum->Release();
return hr;
}
