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/* This file is part of the KDE project.
Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
This library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2.1 or 3 of the License.
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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "fakesource.h"
#include "qpin.h"
#include <dshow.h>
#include <initguid.h>
#include <dvdmedia.h> // VIDEOINFOHEADER2
QT_BEGIN_NAMESPACE
namespace Phonon
{
namespace DS9
{
static WAVEFORMATEX g_defaultWaveFormat = {WAVE_FORMAT_PCM, 2, 44100, 176400, 4, 16, 0};
static BITMAPINFOHEADER g_defautBitmapHeader = { sizeof(BITMAPINFOHEADER), 1, 1, 1, 0, 0, 0, 0, 0, 0, 0};
static VIDEOINFOHEADER2 g_defaultVideoInfo = { { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
class FakePin : public QPin
{
public:
FakePin(FakeSource *source, const AM_MEDIA_TYPE &mt) :
QPin(source, PINDIR_OUTPUT, QVector<AM_MEDIA_TYPE>() << mt), m_source(source)
{
setAvailable(true);
}
~FakePin()
{
}
STDMETHODIMP Disconnect()
{
HRESULT hr = QPin::Disconnect();
if (SUCCEEDED(hr)) {
setAvailable(true);
}
return hr;
}
STDMETHODIMP Connect(IPin *pin, const AM_MEDIA_TYPE *type)
{
HRESULT hr = QPin::Connect(pin, type);
if (SUCCEEDED(hr)) {
setAvailable(false);
}
return hr;
}
private:
void setAvailable(bool avail)
{
if (mediaTypes().first().majortype == MEDIATYPE_Audio) {
if (avail) {
m_source->addAvailableAudioPin(this);
} else {
m_source->removeAvailableAudioPin(this);
}
} else {
if (avail) {
m_source->addAvailableVideoPin(this);
} else {
m_source->removeAvailableVideoPin(this);
}
}
}
FakeSource *m_source;
};
FakeSource::FakeSource() : QBaseFilter(CLSID_NULL)
{
createFakeAudioPin();
createFakeVideoPin();
}
FakeSource::~FakeSource()
{
}
void FakeSource::addAvailableAudioPin(FakePin *pin)
{
availableAudioPins += pin;
}
void FakeSource::addAvailableVideoPin(FakePin *pin)
{
availableVideoPins += pin;
}
void FakeSource::removeAvailableAudioPin(FakePin *pin)
{
availableAudioPins -= pin;
if (availableAudioPins.isEmpty()) {
createFakeAudioPin();
}
}
void FakeSource::removeAvailableVideoPin(FakePin *pin)
{
availableVideoPins -= pin;
if (availableVideoPins.isEmpty()) {
createFakeVideoPin();
}
}
void FakeSource::createFakeAudioPin()
{
AM_MEDIA_TYPE mt;
qMemSet(&mt, 0, sizeof(AM_MEDIA_TYPE));
mt.majortype = MEDIATYPE_Audio;
mt.subtype = MEDIASUBTYPE_PCM;
mt.formattype = FORMAT_WaveFormatEx;
mt.lSampleSize = 2;
//fake the format (stereo 44.1 khz stereo 16 bits)
mt.cbFormat = sizeof(WAVEFORMATEX);
mt.pbFormat = reinterpret_cast<BYTE*>(&g_defaultWaveFormat);
new FakePin(this, mt);
}
void FakeSource::createFakeVideoPin()
{
AM_MEDIA_TYPE mt;
qMemSet(&mt, 0, sizeof(AM_MEDIA_TYPE));
mt.majortype = MEDIATYPE_Video;
mt.subtype = MEDIASUBTYPE_RGB32;
mt.formattype = FORMAT_VideoInfo2;
mt.bFixedSizeSamples = 1;
g_defaultVideoInfo.bmiHeader = g_defautBitmapHeader;
//fake the format
mt.cbFormat = sizeof(VIDEOINFOHEADER2);
mt.pbFormat = reinterpret_cast<BYTE*>(&g_defaultVideoInfo);
new FakePin(this, mt);
}
}
}
QT_END_NAMESPACE
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