WMF: remove dead code.

Change-Id: Ib3b595263e64336cc5d0482edd890e7b4e534927
Reviewed-by: Christian Stromme <christian.stromme@digia.com>
This commit is contained in:
Yoann Lopes
2013-12-09 14:09:40 +01:00
committed by The Qt Project
parent 653041db1d
commit 29ded57cef

View File

@@ -68,339 +68,6 @@
#include <wmcodecdsp.h> #include <wmcodecdsp.h>
//#define DEBUG_MEDIAFOUNDATION //#define DEBUG_MEDIAFOUNDATION
//#define TEST_STREAMING
namespace
{
//MFStream is added for supporting QIODevice type of media source.
//It is used to delegate invocations from media foundation(through IMFByteStream) to QIODevice.
class MFStream : public QObject, public IMFByteStream
{
Q_OBJECT
public:
MFStream(QIODevice *stream, bool ownStream)
: m_cRef(1)
, m_stream(stream)
, m_ownStream(ownStream)
, m_currentReadResult(0)
{
//Move to the thread of the stream object
//to make sure invocations on stream
//are happened in the same thread of stream object
this->moveToThread(stream->thread());
connect(stream, SIGNAL(readyRead()), this, SLOT(handleReadyRead()));
}
~MFStream()
{
if (m_currentReadResult)
m_currentReadResult->Release();
if (m_ownStream)
m_stream->deleteLater();
}
//from IUnknown
STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppvObject)
{
if (!ppvObject)
return E_POINTER;
if (riid == IID_IMFByteStream) {
*ppvObject = static_cast<IMFByteStream*>(this);
} else if (riid == IID_IUnknown) {
*ppvObject = static_cast<IUnknown*>(this);
} else {
*ppvObject = NULL;
return E_NOINTERFACE;
}
AddRef();
return S_OK;
}
STDMETHODIMP_(ULONG) AddRef(void)
{
return InterlockedIncrement(&m_cRef);
}
STDMETHODIMP_(ULONG) Release(void)
{
LONG cRef = InterlockedDecrement(&m_cRef);
if (cRef == 0) {
this->deleteLater();
}
return cRef;
}
//from IMFByteStream
STDMETHODIMP GetCapabilities(DWORD *pdwCapabilities)
{
if (!pdwCapabilities)
return E_INVALIDARG;
*pdwCapabilities = MFBYTESTREAM_IS_READABLE;
if (!m_stream->isSequential())
*pdwCapabilities |= MFBYTESTREAM_IS_SEEKABLE;
return S_OK;
}
STDMETHODIMP GetLength(QWORD *pqwLength)
{
if (!pqwLength)
return E_INVALIDARG;
QMutexLocker locker(&m_mutex);
*pqwLength = QWORD(m_stream->size());
return S_OK;
}
STDMETHODIMP SetLength(QWORD)
{
return E_NOTIMPL;
}
STDMETHODIMP GetCurrentPosition(QWORD *pqwPosition)
{
if (!pqwPosition)
return E_INVALIDARG;
QMutexLocker locker(&m_mutex);
*pqwPosition = m_stream->pos();
return S_OK;
}
STDMETHODIMP SetCurrentPosition(QWORD qwPosition)
{
QMutexLocker locker(&m_mutex);
//SetCurrentPosition may happend during the BeginRead/EndRead pair,
//refusing to execute SetCurrentPosition during that time seems to be
//the simplest workable solution
if (m_currentReadResult)
return S_FALSE;
bool seekOK = m_stream->seek(qint64(qwPosition));
if (seekOK)
return S_OK;
else
return S_FALSE;
}
STDMETHODIMP IsEndOfStream(BOOL *pfEndOfStream)
{
if (!pfEndOfStream)
return E_INVALIDARG;
QMutexLocker locker(&m_mutex);
*pfEndOfStream = m_stream->atEnd() ? TRUE : FALSE;
return S_OK;
}
STDMETHODIMP Read(BYTE *pb, ULONG cb, ULONG *pcbRead)
{
QMutexLocker locker(&m_mutex);
qint64 read = m_stream->read((char*)(pb), qint64(cb));
if (pcbRead)
*pcbRead = ULONG(read);
return S_OK;
}
STDMETHODIMP BeginRead(BYTE *pb, ULONG cb, IMFAsyncCallback *pCallback,
IUnknown *punkState)
{
if (!pCallback || !pb)
return E_INVALIDARG;
Q_ASSERT(m_currentReadResult == NULL);
AsyncReadState *state = new (std::nothrow) AsyncReadState(pb, cb);
if (state == NULL)
return E_OUTOFMEMORY;
HRESULT hr = MFCreateAsyncResult(state, pCallback, punkState, &m_currentReadResult);
state->Release();
if (FAILED(hr))
return hr;
QCoreApplication::postEvent(this, new QEvent(QEvent::User));
return hr;
}
STDMETHODIMP EndRead(IMFAsyncResult* pResult, ULONG *pcbRead)
{
if (!pcbRead)
return E_INVALIDARG;
IUnknown *pUnk;
pResult->GetObject(&pUnk);
AsyncReadState *state = static_cast<AsyncReadState*>(pUnk);
*pcbRead = state->bytesRead();
pUnk->Release();
m_currentReadResult->Release();
m_currentReadResult = NULL;
return S_OK;
}
STDMETHODIMP Write(const BYTE *, ULONG, ULONG *)
{
return E_NOTIMPL;
}
STDMETHODIMP BeginWrite(const BYTE *, ULONG ,
IMFAsyncCallback *,
IUnknown *)
{
return E_NOTIMPL;
}
STDMETHODIMP EndWrite(IMFAsyncResult *,
ULONG *)
{
return E_NOTIMPL;
}
STDMETHODIMP Seek(
MFBYTESTREAM_SEEK_ORIGIN SeekOrigin,
LONGLONG llSeekOffset,
DWORD,
QWORD *pqwCurrentPosition)
{
QMutexLocker locker(&m_mutex);
if (m_currentReadResult)
return S_FALSE;
qint64 pos = qint64(llSeekOffset);
switch (SeekOrigin) {
case msoCurrent:
pos += m_stream->pos();
break;
}
bool seekOK = m_stream->seek(pos);
if (*pqwCurrentPosition)
*pqwCurrentPosition = pos;
if (seekOK)
return S_OK;
else
return S_FALSE;
}
STDMETHODIMP Flush()
{
return E_NOTIMPL;
}
STDMETHODIMP Close()
{
QMutexLocker locker(&m_mutex);
if (m_ownStream)
m_stream->close();
return S_OK;
}
private:
//AsyncReadState is a helper class used in BeginRead for asynchronous operation
//to record some BeginRead parameters, so these parameters could be
//used later when actually executing the read operation in another thread.
class AsyncReadState : public IUnknown
{
public:
AsyncReadState(BYTE *pb, ULONG cb)
: m_cRef(1)
, m_pb(pb)
, m_cb(cb)
, m_cbRead(0)
{
}
//from IUnknown
STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppvObject)
{
if (!ppvObject)
return E_POINTER;
if (riid == IID_IUnknown) {
*ppvObject = static_cast<IUnknown*>(this);
} else {
*ppvObject = NULL;
return E_NOINTERFACE;
}
AddRef();
return S_OK;
}
STDMETHODIMP_(ULONG) AddRef(void)
{
return InterlockedIncrement(&m_cRef);
}
STDMETHODIMP_(ULONG) Release(void)
{
LONG cRef = InterlockedDecrement(&m_cRef);
if (cRef == 0)
delete this;
// For thread safety, return a temporary variable.
return cRef;
}
BYTE* pb() const { return m_pb; }
ULONG cb() const { return m_cb; }
ULONG bytesRead() const { return m_cbRead; }
void setBytesRead(ULONG cbRead) { m_cbRead = cbRead; }
private:
long m_cRef;
BYTE *m_pb;
ULONG m_cb;
ULONG m_cbRead;
};
long m_cRef;
QIODevice *m_stream;
bool m_ownStream;
DWORD m_workQueueId;
QMutex m_mutex;
void doRead()
{
bool readDone = true;
IUnknown *pUnk = NULL;
HRESULT hr = m_currentReadResult->GetObject(&pUnk);
if (SUCCEEDED(hr)) {
//do actual read
AsyncReadState *state = static_cast<AsyncReadState*>(pUnk);
ULONG cbRead;
Read(state->pb(), state->cb() - state->bytesRead(), &cbRead);
pUnk->Release();
state->setBytesRead(cbRead + state->bytesRead());
if (state->cb() > state->bytesRead() && !m_stream->atEnd()) {
readDone = false;
}
}
if (readDone) {
//now inform the original caller
m_currentReadResult->SetStatus(hr);
MFInvokeCallback(m_currentReadResult);
}
}
private Q_SLOTS:
void handleReadyRead()
{
doRead();
}
protected:
void customEvent(QEvent *event)
{
if (event->type() != QEvent::User) {
QObject::customEvent(event);
return;
}
doRead();
}
IMFAsyncResult *m_currentReadResult;
};
}
MFPlayerSession::MFPlayerSession(MFPlayerService *playerService) MFPlayerSession::MFPlayerSession(MFPlayerService *playerService)
: m_playerService(playerService) : m_playerService(playerService)