gstreamer/gst-libs/gst/dshow/gstdshowfakesrc.cpp

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docs/plugins/gst-plugins-bad-plugins.args: Remove directsoundsink property doc as this sink use the mixer interface now. Original commit message from CVS: * docs/plugins/gst-plugins-bad-plugins.args: Remove directsoundsink property doc as this sink use the mixer interface now. * docs/plugins/gst-plugins-bad-plugins.interfaces: Add interfaces implemented by Windows sinks. * sys/directsound/gstdirectsoundsink.c: * sys/directsound/gstdirectsoundsink.h: Remove directsoundsink property and implement the mixer interface. * win32/vs6/gst_plugins_bad.dsw: * win32/vs6/libgstdirectsound.dsp: Update project files. * gst-libs/gst/dshow/gstdshow.cpp: * gst-libs/gst/dshow/gstdshow.h: * gst-libs/gst/dshow/gstdshowfakesink.cpp: * gst-libs/gst/dshow/gstdshowfakesink.h: * gst-libs/gst/dshow/gstdshowfakesrc.cpp: * gst-libs/gst/dshow/gstdshowfakesrc.h: * gst-libs/gst/dshow/gstdshowinterface.cpp: * gst-libs/gst/dshow/gstdshowinterface.h: * win32/common/libgstdshow.def: * win32/vs6/libgstdshow.dsp: Add a new gst library which allow to create internal Direct Show graph (pipelines) to wrap Windows sources, decoders or encoders. It includes a DirectShow fake source and sink and utility functions. * sys/dshowsrcwrapper/gstdshowaudiosrc.c: * sys/dshowsrcwrapper/gstdshowaudiosrc.h: * sys/dshowsrcwrapper/gstdshowsrcwrapper.c: * sys/dshowsrcwrapper/gstdshowsrcwrapper.h: * sys/dshowsrcwrapper/gstdshowvideosrc.c: * sys/dshowsrcwrapper/gstdshowvideosrc.h: * win32/vs6/libdshowsrcwrapper.dsp: Add a new plugin to wrap DirectShow sources on Windows. It gets data from any webcam, dv cam, micro. We could add tv tunner card later.
2007-05-23 22:44:12 +00:00
/* GStreamer
* Copyright (C) 2007 Sebastien Moutte <sebastien@moutte.net>
*
* gstdshowfakesrc.cpp:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gstdshowfakesrc.h"
static CCritSec g_pCriticSec;
/* output pin*/
CDshowFakeOutputPin::CDshowFakeOutputPin (CBaseFilter *pFilter, CCritSec *sec):
CBaseOutputPin("FakeOutputPin", pFilter, sec, &m_hres, L"output")
{
}
CDshowFakeOutputPin::~CDshowFakeOutputPin()
{
}
HRESULT CDshowFakeOutputPin::GetMediaType(int iPosition, CMediaType *pMediaType)
{
if(iPosition == 0) {
*pMediaType = m_MediaType;
return S_OK;
}
return VFW_S_NO_MORE_ITEMS;
}
HRESULT CDshowFakeOutputPin::CheckMediaType(const CMediaType *pmt)
{
if (m_MediaType == *pmt) {
return S_OK;
}
return S_FALSE;
}
HRESULT CDshowFakeOutputPin::DecideBufferSize (IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
{
ALLOCATOR_PROPERTIES properties;
ppropInputRequest->cbBuffer = m_SampleSize;
ppropInputRequest->cBuffers = 1;
HRESULT hres = pAlloc->SetProperties(ppropInputRequest, &properties);
pAlloc->Commit();
return S_OK;
}
STDMETHODIMP CDshowFakeOutputPin::SetMediaType (AM_MEDIA_TYPE *pmt)
{
m_MediaType.Set (*pmt);
m_SampleSize = m_MediaType.GetSampleSize();
return S_OK;
}
STDMETHODIMP CDshowFakeOutputPin::PushBuffer(byte *buffer, __int64 start, __int64 stop, unsigned int size, bool discount)
{
IMediaSample *pSample = NULL;
if (start != -1) {
start /= 100;
stop /= 100;
}
HRESULT hres = GetDeliveryBuffer(&pSample, NULL, NULL, 0);
if (hres == S_OK && pSample)
{
BYTE *sample_buffer;
pSample->GetPointer(&sample_buffer);
if(sample_buffer)
{
memcpy (sample_buffer, buffer, size);
pSample->SetActualDataLength(size);
}
if (discount)
pSample->SetDiscontinuity(TRUE);
else
pSample->SetDiscontinuity(FALSE);
pSample->SetSyncPoint(TRUE);
pSample->SetPreroll(FALSE);
if (start != -1)
pSample->SetTime(&start, &stop);
hres = Deliver(pSample);
pSample->Release();
}
return S_OK;
}
STDMETHODIMP CDshowFakeOutputPin::Flush ()
{
DeliverBeginFlush();
DeliverEndFlush();
return S_OK;
}
STDMETHODIMP CDshowFakeOutputPin::SetSampleSize (unsigned int size)
{
m_SampleSize = size;
return S_OK;
}
/* filter */
CDshowFakeSrc::CDshowFakeSrc():CBaseFilter("DshowFakeSink", NULL, &g_pCriticSec, CLSID_DshowFakeSrc)
{
m_pOutputPin = new CDshowFakeOutputPin((CSource *)this, m_pLock);
}
CDshowFakeSrc::~CDshowFakeSrc()
{
if (m_pOutputPin)
delete m_pOutputPin;
}
//Object creation.
CUnknown* WINAPI CDshowFakeSrc::CreateInstance(LPUNKNOWN pUnk, HRESULT *pHr)
{
CDshowFakeSrc *pNewObject = new CDshowFakeSrc();
if (pNewObject == NULL) {
*pHr = E_OUTOFMEMORY;
}
return pNewObject;
}
int CDshowFakeSrc::GetPinCount()
{
return 1;
}
CBasePin *CDshowFakeSrc::GetPin(int n)
{
return (CBasePin *)m_pOutputPin;
}
STDMETHODIMP CDshowFakeSrc::QueryInterface(REFIID riid, void **ppvObject)
{
if (riid == IID_IGstDshowInterface) {
*ppvObject = (IGstDshowInterface*) this;
AddRef();
return S_OK;
}
else
return CBaseFilter::QueryInterface (riid, ppvObject);
}
ULONG STDMETHODCALLTYPE CDshowFakeSrc::AddRef()
{
return CBaseFilter::AddRef();
}
ULONG STDMETHODCALLTYPE CDshowFakeSrc::Release()
{
return CBaseFilter::Release();
}
STDMETHODIMP CDshowFakeSrc::gst_set_media_type (AM_MEDIA_TYPE *pmt)
{
m_pOutputPin->SetMediaType(pmt);
return S_OK;
}
STDMETHODIMP CDshowFakeSrc::gst_set_buffer_callback (push_buffer_func push, byte *data)
{
return E_NOTIMPL;
}
STDMETHODIMP CDshowFakeSrc::gst_push_buffer (byte *buffer, __int64 start, __int64 stop, unsigned int size, bool discount)
{
m_pOutputPin->PushBuffer(buffer, start, stop, size, discount);
return S_OK;
}
STDMETHODIMP CDshowFakeSrc::gst_flush ()
{
m_pOutputPin->Flush();
return S_OK;
}
STDMETHODIMP CDshowFakeSrc::gst_set_sample_size(unsigned int size)
{
m_pOutputPin->SetSampleSize(size);
return S_OK;
}