Sweden-Number/dlls/mf/samplegrabber.c

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/*
* Copyright 2019 Nikolay Sivov for CodeWeavers
*
* 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 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
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define COBJMACROS
#include "mfidl.h"
#include "mf_private.h"
#include "wine/debug.h"
#include "wine/heap.h"
WINE_DEFAULT_DEBUG_CHANNEL(mfplat);
struct sample_grabber_activate_context
{
IMFMediaType *media_type;
IMFSampleGrabberSinkCallback *callback;
};
static void sample_grabber_free_private(void *user_context)
{
struct sample_grabber_activate_context *context = user_context;
IMFMediaType_Release(context->media_type);
IMFSampleGrabberSinkCallback_Release(context->callback);
heap_free(context);
}
static HRESULT sample_grabber_create_object(IMFAttributes *attributes, void *user_context, IUnknown **obj)
{
FIXME("%p, %p, %p.\n", attributes, user_context, obj);
return E_NOTIMPL;
}
static const struct activate_funcs sample_grabber_activate_funcs =
{
sample_grabber_create_object,
sample_grabber_free_private,
};
/***********************************************************************
* MFCreateSampleGrabberSinkActivate (mf.@)
*/
HRESULT WINAPI MFCreateSampleGrabberSinkActivate(IMFMediaType *media_type, IMFSampleGrabberSinkCallback *callback,
IMFActivate **activate)
{
struct sample_grabber_activate_context *context;
HRESULT hr;
TRACE("%p, %p, %p.\n", media_type, callback, activate);
if (!media_type || !callback || !activate)
return E_POINTER;
context = heap_alloc_zero(sizeof(*context));
if (!context)
return E_OUTOFMEMORY;
context->media_type = media_type;
IMFMediaType_AddRef(context->media_type);
context->callback = callback;
IMFSampleGrabberSinkCallback_AddRef(context->callback);
if (FAILED(hr = create_activation_object(context, &sample_grabber_activate_funcs, activate)))
sample_grabber_free_private(context);
return hr;
}