static HRESULT WINAPI
IMediaSeeking_fnIsFormatSupported(IMediaSeeking* iface,const GUID* pidFormat)
{
CFilterGraph_THIS(iface,mediaseeking);
HRESULT hr = E_NOTIMPL;
HRESULT hrFilter;
DWORD n;
TRACE("(%p)->()\n",This);
EnterCriticalSection( &This->m_csFilters );
for ( n = 0; n < This->m_cActiveFilters; n++ )
{
if ( This->m_pActiveFilters[n].pSeeking != NULL )
{
hrFilter = IMediaSeeking_IsFormatSupported( This->m_pActiveFilters[n].pSeeking, pidFormat );
if ( hr == E_NOTIMPL )
{
hr = hrFilter;
}
else
if ( hrFilter != E_NOTIMPL )
{
if ( SUCCEEDED(hr) )
hr = hrFilter;
}
}
}
LeaveCriticalSection( &This->m_csFilters );
return hr;
}
static HRESULT WINAPI MediaSeekingPassThru_IsFormatSupported(IMediaSeeking * iface, const GUID * pFormat)
{
PassThruImpl *This = impl_from_IMediaSeeking(iface);
IMediaSeeking *seek;
HRESULT hr;
TRACE("(%p/%p)->(%s)\n", iface, This, debugstr_guid(pFormat));
hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
if (SUCCEEDED(hr)) {
hr = IMediaSeeking_IsFormatSupported(seek, pFormat);
IMediaSeeking_Release(seek);
}
else
return E_NOTIMPL;
return hr;
}