CEnumMediaTypes Class Reference

Inheritance diagram for CEnumMediaTypes:

Collaboration diagram for CEnumMediaTypes:

Public Member Functions
STDMETHODIMP	QueryInterface (REFIID InterfaceId, PVOID *Interface)
	STDMETHODIMP_ (ULONG) AddRef()
	STDMETHODIMP_ (ULONG) Release()
HRESULT STDMETHODCALLTYPE	Next (ULONG cMediaTypes, AM_MEDIA_TYPE **ppMediaTypes, ULONG *pcFetched)
HRESULT STDMETHODCALLTYPE	Skip (ULONG cMediaTypes)
HRESULT STDMETHODCALLTYPE	Reset ()
HRESULT STDMETHODCALLTYPE	Clone (IEnumMediaTypes **ppEnum)
	CEnumMediaTypes (ULONG MediaTypeCount, AM_MEDIA_TYPE *MediaTypes)
virtual	~CEnumMediaTypes ()
STDMETHODIMP	QueryInterface (REFIID InterfaceId, PVOID *Interface)
	STDMETHODIMP_ (ULONG) AddRef()
	STDMETHODIMP_ (ULONG) Release()
HRESULT STDMETHODCALLTYPE	Next (ULONG cMediaTypes, AM_MEDIA_TYPE **ppMediaTypes, ULONG *pcFetched)
HRESULT STDMETHODCALLTYPE	Skip (ULONG cMediaTypes)
HRESULT STDMETHODCALLTYPE	Reset ()
HRESULT STDMETHODCALLTYPE	Clone (IEnumMediaTypes **ppEnum)
	CEnumMediaTypes (ULONG MediaTypeCount, AM_MEDIA_TYPE *MediaTypes)
virtual	~CEnumMediaTypes ()
Public Member Functions inherited from IEnumMediaTypes
HRESULT	Next ([in] ULONG cMediaTypes, [out, size_is(cMediaTypes)] AM_MEDIA_TYPE **ppMediaTypes, [out] ULONG *pcFetched)
HRESULT	Skip ([in] ULONG cMediaTypes)
HRESULT	Reset (void)
HRESULT	Clone ([out] IEnumMediaTypes **ppEnum)
Public Member Functions inherited from IUnknown
HRESULT	QueryInterface ([in] REFIID riid, [out, iid_is(riid)] void **ppvObject)
ULONG	AddRef ()
ULONG	Release ()

Protected Attributes
LONG	m_Ref
ULONG	m_MediaTypeCount
AM_MEDIA_TYPE *	m_MediaTypes
ULONG	m_Index

Additional Inherited Members
Public Types inherited from IUnknown
typedef IUnknown *	LPUNKNOWN

Detailed Description

Definition at line 11 of file enum_mediatypes.cpp.

Constructor & Destructor Documentation

CEnumMediaTypes() [1/2]

CEnumMediaTypes::CEnumMediaTypes ( ULONG  MediaTypeCount, AM_MEDIA_TYPE *  MediaTypes  )

inline

Definition at line 38 of file enum_mediatypes.cpp.

: m_Ref(0), m_MediaTypeCount(MediaTypeCount), m_MediaTypes(MediaTypes), m_Index(0){};

~CEnumMediaTypes() [1/2]

virtual CEnumMediaTypes::~CEnumMediaTypes ( )

inlinevirtual

Definition at line 39 of file enum_mediatypes.cpp.

{};

CEnumMediaTypes() [2/2]

CEnumMediaTypes::CEnumMediaTypes ( ULONG  MediaTypeCount, AM_MEDIA_TYPE *  MediaTypes  )

inline

Definition at line 38 of file enum_mediatypes.cpp.

: m_Ref(0), m_MediaTypeCount(MediaTypeCount), m_MediaTypes(MediaTypes), m_Index(0){};

~CEnumMediaTypes() [2/2]

virtual CEnumMediaTypes::~CEnumMediaTypes ( )

inlinevirtual

Definition at line 39 of file enum_mediatypes.cpp.

{};

Member Function Documentation

Clone() [1/2]

HRESULT STDMETHODCALLTYPE CEnumMediaTypes::Clone

(

IEnumMediaTypes **

ppEnum

)

Implements IEnumMediaTypes.

Definition at line 164 of file enum_mediatypes.cpp.

{
#ifdef KSPROXY_TRACE
    OutputDebugStringW(L"CEnumMediaTypes::Clone : NotImplemented\n");
#endif
    return E_NOTIMPL;
}

Clone() [2/2]

HRESULT STDMETHODCALLTYPE CEnumMediaTypes::Clone

(

IEnumMediaTypes **

ppEnum

)

Implements IEnumMediaTypes.

Next() [1/2]

HRESULT STDMETHODCALLTYPE CEnumMediaTypes::Next	(	ULONG	cMediaTypes,
		AM_MEDIA_TYPE **	ppMediaTypes,
		ULONG *	pcFetched
	)

Definition at line 76 of file enum_mediatypes.cpp.

{
    ULONG i = 0;
    AM_MEDIA_TYPE * MediaType;
 
    if (!ppMediaTypes)
        return E_POINTER;
 
    if (cMediaTypes > 1 && !pcFetched)
        return E_INVALIDARG;
 
    while(i < cMediaTypes)
    {
        if (m_Index + i >= m_MediaTypeCount)
            break;
 
        MediaType = (AM_MEDIA_TYPE*)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
        if (!MediaType)
            break;
 
        if (m_MediaTypes[m_Index + i].cbFormat)
        {
            LPBYTE pFormat = (LPBYTE)CoTaskMemAlloc(m_MediaTypes[m_Index + i].cbFormat);
            if (!pFormat)
            {
                CoTaskMemFree(MediaType);
                break;
            }
 
            CopyMemory(MediaType, &m_MediaTypes[m_Index + i], sizeof(AM_MEDIA_TYPE));
            MediaType->pbFormat = pFormat;
            CopyMemory(MediaType->pbFormat, m_MediaTypes[m_Index + i].pbFormat, m_MediaTypes[m_Index + i].cbFormat);
            MediaType->pUnk = (IUnknown *)this;
            MediaType->pUnk->AddRef();
        }
        else
        {
            CopyMemory(MediaType, &m_MediaTypes[m_Index + i], sizeof(AM_MEDIA_TYPE));
        }
 
        if (MediaType->pUnk)
        {
            MediaType->pUnk->AddRef();
        }
 
        ppMediaTypes[i] = MediaType;
        i++;
    }
 
    if (pcFetched)
    {
        *pcFetched = i;
    }
 
    m_Index += i;
    if (i < cMediaTypes)
        return S_FALSE;
    else
        return S_OK;
}

Next() [2/2]

HRESULT STDMETHODCALLTYPE CEnumMediaTypes::Next	(	ULONG	cMediaTypes,
		AM_MEDIA_TYPE **	ppMediaTypes,
		ULONG *	pcFetched
	)

QueryInterface() [1/2]

STDMETHODIMP CEnumMediaTypes::QueryInterface	(	REFIID	InterfaceId,
		PVOID *	Interface
	)

QueryInterface() [2/2]

STDMETHODIMP CEnumMediaTypes::QueryInterface	(	REFIID	InterfaceId,
		PVOID *	Interface
	)

Reset() [1/2]

HRESULT STDMETHODCALLTYPE CEnumMediaTypes::Reset

(

void

)

Implements IEnumMediaTypes.

Definition at line 156 of file enum_mediatypes.cpp.

{
    m_Index = 0;
    return S_OK;
}

Reset() [2/2]

HRESULT STDMETHODCALLTYPE CEnumMediaTypes::Reset

(

)

Implements IEnumMediaTypes.

Skip() [1/2]

HRESULT STDMETHODCALLTYPE CEnumMediaTypes::Skip

(

ULONG

cMediaTypes

)

Implements IEnumMediaTypes.

Definition at line 142 of file enum_mediatypes.cpp.

{
    if (cMediaTypes + m_Index >= m_MediaTypeCount)
    {
        return S_FALSE;
    }
 
    m_Index += cMediaTypes;
    return S_OK;
}

Skip() [2/2]

HRESULT STDMETHODCALLTYPE CEnumMediaTypes::Skip

(

ULONG

cMediaTypes

)

Implements IEnumMediaTypes.

STDMETHODIMP_() [1/4]

CEnumMediaTypes::STDMETHODIMP_ ( ULONG  )

inline

Definition at line 16 of file enum_mediatypes.cpp.

    {
        InterlockedIncrement(&m_Ref);
        return m_Ref;
    }

STDMETHODIMP_() [2/4]

CEnumMediaTypes::STDMETHODIMP_ ( ULONG  )

inline

Definition at line 16 of file enum_mediatypes.cpp.

    {
        InterlockedIncrement(&m_Ref);
        return m_Ref;
    }

STDMETHODIMP_() [3/4]

CEnumMediaTypes::STDMETHODIMP_ ( ULONG  )

inline

Definition at line 21 of file enum_mediatypes.cpp.

    {
        InterlockedDecrement(&m_Ref);
        if (!m_Ref)
        {
            delete this;
            return 0;
        }
        return m_Ref;
    }

STDMETHODIMP_() [4/4]

CEnumMediaTypes::STDMETHODIMP_ ( ULONG  )

inline

Definition at line 21 of file enum_mediatypes.cpp.

    {
        InterlockedDecrement(&m_Ref);
        if (!m_Ref)
        {
            delete this;
            return 0;
        }
        return m_Ref;
    }

Member Data Documentation

m_Index

ULONG CEnumMediaTypes::m_Index

protected

Definition at line 45 of file enum_mediatypes.cpp.

Referenced by Next(), Reset(), and Skip().

m_MediaTypeCount

ULONG CEnumMediaTypes::m_MediaTypeCount

protected

Definition at line 43 of file enum_mediatypes.cpp.

Referenced by Next(), and Skip().

m_MediaTypes

AM_MEDIA_TYPE * CEnumMediaTypes::m_MediaTypes

protected

Definition at line 44 of file enum_mediatypes.cpp.

Referenced by Next().

m_Ref

LONG CEnumMediaTypes::m_Ref

protected

Definition at line 42 of file enum_mediatypes.cpp.

Referenced by STDMETHODIMP_().

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The documentation for this class was generated from the following files:

• dll/directx/ksproxy/enum_mediatypes.cpp
• dll/directx/msdvbnp/enum_mediatypes.cpp