dmort.h File Reference

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Functions
HRESULT WINAPI	MoCopyMediaType (DMO_MEDIA_TYPE *, const DMO_MEDIA_TYPE *)
HRESULT WINAPI	MoCreateMediaType (DMO_MEDIA_TYPE **, DWORD)
HRESULT WINAPI	MoDeleteMediaType (DMO_MEDIA_TYPE *)
HRESULT WINAPI	MoDuplicateMediaType (DMO_MEDIA_TYPE **, const DMO_MEDIA_TYPE *)
HRESULT WINAPI	MoFreeMediaType (DMO_MEDIA_TYPE *)
HRESULT WINAPI	MoInitMediaType (DMO_MEDIA_TYPE *, DWORD)

Function Documentation

MoCopyMediaType()

HRESULT WINAPI MoCopyMediaType	(	DMO_MEDIA_TYPE *	pdst,
		const DMO_MEDIA_TYPE *	psrc
	)

Definition at line 163 of file dmort.c.

{
    TRACE("%p %p\n", pdst, psrc);
 
    if (!pdst || !psrc)
        return E_POINTER;
 
    pdst->majortype = psrc->majortype;
    pdst->subtype = psrc->subtype;
    pdst->formattype = psrc->formattype;
 
    pdst->bFixedSizeSamples    = psrc->bFixedSizeSamples;
    pdst->bTemporalCompression = psrc->bTemporalCompression;
    pdst->lSampleSize          = psrc->lSampleSize;
    pdst->cbFormat             = psrc->cbFormat;
 
    if (psrc->pbFormat && psrc->cbFormat > 0)
    {
        pdst->pbFormat = CoTaskMemAlloc(psrc->cbFormat);
        if (!pdst->pbFormat)
            return E_OUTOFMEMORY;
 
        memcpy(pdst->pbFormat, psrc->pbFormat, psrc->cbFormat);
    }
    else
        pdst->pbFormat = NULL;
 
    if (psrc->pUnk)
    {
        pdst->pUnk = psrc->pUnk;
        IUnknown_AddRef(pdst->pUnk);
    }
    else
        pdst->pUnk = NULL;
 
    return S_OK;
}

Referenced by MoDuplicateMediaType().

MoCreateMediaType()

HRESULT WINAPI MoCreateMediaType	(	DMO_MEDIA_TYPE **	ppmedia,
		DWORD	cbFormat
	)

Definition at line 38 of file dmort.c.

{
    HRESULT r;
 
    TRACE("%p %u\n", ppmedia, cbFormat);
 
    if (!ppmedia)
        return E_POINTER;
 
    *ppmedia = CoTaskMemAlloc(sizeof(DMO_MEDIA_TYPE));
    if (!*ppmedia)
        return E_OUTOFMEMORY;
 
    r = MoInitMediaType(*ppmedia, cbFormat);
    if (FAILED(r))
    {
        CoTaskMemFree(*ppmedia);
        *ppmedia = NULL;
    }
 
    return r;
}

MoDeleteMediaType()

HRESULT WINAPI MoDeleteMediaType

(

DMO_MEDIA_TYPE *

pmedia

)

Definition at line 92 of file dmort.c.

{
    TRACE("%p\n", pmedia);
 
    if (!pmedia)
        return E_POINTER;
 
    MoFreeMediaType(pmedia);
    CoTaskMemFree(pmedia);
 
    return S_OK;
}

MoDuplicateMediaType()

HRESULT WINAPI MoDuplicateMediaType	(	DMO_MEDIA_TYPE **	ppdst,
		const DMO_MEDIA_TYPE *	psrc
	)

Definition at line 134 of file dmort.c.

{
    HRESULT r;
 
    TRACE("%p %p\n", ppdst, psrc);
 
    if (!ppdst || !psrc)
        return E_POINTER;
 
    *ppdst = CoTaskMemAlloc(sizeof(DMO_MEDIA_TYPE));
    if (!*ppdst)
        return E_OUTOFMEMORY;
 
    r = MoCopyMediaType(*ppdst, psrc);
    if (FAILED(r))
    {
        MoFreeMediaType(*ppdst);
        *ppdst = NULL;
    }
 
    return r;
}

MoFreeMediaType()

HRESULT WINAPI MoFreeMediaType

(

DMO_MEDIA_TYPE *

pmedia

)

Definition at line 110 of file dmort.c.

{
    TRACE("%p\n", pmedia);
 
    if (!pmedia)
        return E_POINTER;
 
    if (pmedia->pUnk)
    {
        IUnknown_Release(pmedia->pUnk);
        pmedia->pUnk = NULL;
    }
 
    CoTaskMemFree(pmedia->pbFormat);
    pmedia->pbFormat = NULL;
 
    return S_OK;
}

Referenced by MoDeleteMediaType(), and MoDuplicateMediaType().

MoInitMediaType()

HRESULT WINAPI MoInitMediaType	(	DMO_MEDIA_TYPE *	pmedia,
		DWORD	cbFormat
	)

Definition at line 66 of file dmort.c.

{
    TRACE("%p %u\n", pmedia, cbFormat);
 
    if (!pmedia)
        return E_POINTER;
 
    memset(pmedia, 0, sizeof(DMO_MEDIA_TYPE));
 
    if (cbFormat > 0)
    {
        pmedia->pbFormat = CoTaskMemAlloc(cbFormat);
        if (!pmedia->pbFormat)
            return E_OUTOFMEMORY;
 
        pmedia->cbFormat = cbFormat;
    }
 
    return S_OK;
}

Referenced by MoCreateMediaType().