Sweden-Number/dlls/evr/mixer.c

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/*
* Copyright 2020 Nikolay Sivov
*
* 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 "wine/debug.h"
#include "evr.h"
#include "d3d9.h"
#include "dxva2api.h"
#include "mfapi.h"
#include "mferror.h"
#include "evr_classes.h"
WINE_DEFAULT_DEBUG_CHANNEL(evr);
#define MAX_MIXER_INPUT_STREAMS 16
struct input_stream
{
unsigned int id;
IMFAttributes *attributes;
};
struct video_mixer
{
IMFTransform IMFTransform_iface;
IMFVideoDeviceID IMFVideoDeviceID_iface;
IMFTopologyServiceLookupClient IMFTopologyServiceLookupClient_iface;
IMFVideoMixerControl2 IMFVideoMixerControl2_iface;
LONG refcount;
struct input_stream inputs[MAX_MIXER_INPUT_STREAMS];
unsigned int input_ids[MAX_MIXER_INPUT_STREAMS];
unsigned int input_count;
IDirect3DDeviceManager9 *device_manager;
CRITICAL_SECTION cs;
};
static struct video_mixer *impl_from_IMFTransform(IMFTransform *iface)
{
return CONTAINING_RECORD(iface, struct video_mixer, IMFTransform_iface);
}
static struct video_mixer *impl_from_IMFVideoDeviceID(IMFVideoDeviceID *iface)
{
return CONTAINING_RECORD(iface, struct video_mixer, IMFVideoDeviceID_iface);
}
static struct video_mixer *impl_from_IMFTopologyServiceLookupClient(IMFTopologyServiceLookupClient *iface)
{
return CONTAINING_RECORD(iface, struct video_mixer, IMFTopologyServiceLookupClient_iface);
}
static struct video_mixer *impl_from_IMFVideoMixerControl2(IMFVideoMixerControl2 *iface)
{
return CONTAINING_RECORD(iface, struct video_mixer, IMFVideoMixerControl2_iface);
}
static int video_mixer_compare_input_id(const void *a, const void *b)
{
const unsigned int *key = a;
const struct input_stream *input = b;
if (*key > input->id) return 1;
if (*key < input->id) return -1;
return 0;
}
static struct input_stream * video_mixer_get_input(const struct video_mixer *mixer, unsigned int id)
{
return bsearch(&id, mixer->inputs, mixer->input_count, sizeof(*mixer->inputs), video_mixer_compare_input_id);
}
static void video_mixer_init_input(struct input_stream *stream)
{
if (SUCCEEDED(MFCreateAttributes(&stream->attributes, 1)))
IMFAttributes_SetUINT32(stream->attributes, &MF_SA_REQUIRED_SAMPLE_COUNT, 1);
}
static HRESULT WINAPI video_mixer_transform_QueryInterface(IMFTransform *iface, REFIID riid, void **obj)
{
struct video_mixer *mixer = impl_from_IMFTransform(iface);
TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
if (IsEqualIID(riid, &IID_IMFTransform) ||
IsEqualIID(riid, &IID_IUnknown))
{
*obj = iface;
}
else if (IsEqualIID(riid, &IID_IMFVideoDeviceID))
{
*obj = &mixer->IMFVideoDeviceID_iface;
}
else if (IsEqualIID(riid, &IID_IMFTopologyServiceLookupClient))
{
*obj = &mixer->IMFTopologyServiceLookupClient_iface;
}
else if (IsEqualIID(riid, &IID_IMFVideoMixerControl2) ||
IsEqualIID(riid, &IID_IMFVideoMixerControl))
{
*obj = &mixer->IMFVideoMixerControl2_iface;
}
else
{
WARN("Unsupported interface %s.\n", debugstr_guid(riid));
*obj = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown *)*obj);
return S_OK;
}
static ULONG WINAPI video_mixer_transform_AddRef(IMFTransform *iface)
{
struct video_mixer *mixer = impl_from_IMFTransform(iface);
ULONG refcount = InterlockedIncrement(&mixer->refcount);
TRACE("%p, refcount %u.\n", iface, refcount);
return refcount;
}
static ULONG WINAPI video_mixer_transform_Release(IMFTransform *iface)
{
struct video_mixer *mixer = impl_from_IMFTransform(iface);
ULONG refcount = InterlockedDecrement(&mixer->refcount);
unsigned int i;
TRACE("%p, refcount %u.\n", iface, refcount);
if (!refcount)
{
for (i = 0; i < mixer->input_count; ++i)
{
if (mixer->inputs[i].attributes)
IMFAttributes_Release(mixer->inputs[i].attributes);
}
if (mixer->device_manager)
IDirect3DDeviceManager9_Release(mixer->device_manager);
DeleteCriticalSection(&mixer->cs);
free(mixer);
}
return refcount;
}
static HRESULT WINAPI video_mixer_transform_GetStreamLimits(IMFTransform *iface, DWORD *input_minimum,
DWORD *input_maximum, DWORD *output_minimum, DWORD *output_maximum)
{
TRACE("%p, %p, %p, %p, %p.\n", iface, input_minimum, input_maximum, output_minimum, output_maximum);
*input_minimum = 1;
*input_maximum = 16;
*output_minimum = 1;
*output_maximum = 1;
return S_OK;
}
static HRESULT WINAPI video_mixer_transform_GetStreamCount(IMFTransform *iface, DWORD *inputs, DWORD *outputs)
{
struct video_mixer *mixer = impl_from_IMFTransform(iface);
TRACE("%p, %p, %p.\n", iface, inputs, outputs);
EnterCriticalSection(&mixer->cs);
if (inputs) *inputs = mixer->input_count;
if (outputs) *outputs = 1;
LeaveCriticalSection(&mixer->cs);
return S_OK;
}
static HRESULT WINAPI video_mixer_transform_GetStreamIDs(IMFTransform *iface, DWORD input_size, DWORD *inputs,
DWORD output_size, DWORD *outputs)
{
struct video_mixer *mixer = impl_from_IMFTransform(iface);
HRESULT hr = S_OK;
TRACE("%p, %u, %p, %u, %p.\n", iface, input_size, inputs, output_size, outputs);
EnterCriticalSection(&mixer->cs);
if (mixer->input_count > input_size || !output_size)
hr = MF_E_BUFFERTOOSMALL;
else if (inputs)
memcpy(inputs, mixer->input_ids, mixer->input_count * sizeof(*inputs));
if (outputs) *outputs = 0;
LeaveCriticalSection(&mixer->cs);
return hr;
}
static HRESULT WINAPI video_mixer_transform_GetInputStreamInfo(IMFTransform *iface, DWORD id, MFT_INPUT_STREAM_INFO *info)
{
struct video_mixer *mixer = impl_from_IMFTransform(iface);
struct input_stream *input;
HRESULT hr = S_OK;
TRACE("%p, %u, %p.\n", iface, id, info);
EnterCriticalSection(&mixer->cs);
if (!(input = video_mixer_get_input(mixer, id)))
hr = MF_E_INVALIDSTREAMNUMBER;
else
{
memset(info, 0, sizeof(*info));
if (id)
info->dwFlags |= MFT_INPUT_STREAM_REMOVABLE | MFT_INPUT_STREAM_OPTIONAL;
}
LeaveCriticalSection(&mixer->cs);
return hr;
}
static HRESULT WINAPI video_mixer_transform_GetOutputStreamInfo(IMFTransform *iface, DWORD id, MFT_OUTPUT_STREAM_INFO *info)
{
TRACE("%p, %u, %p.\n", iface, id, info);
if (id)
return MF_E_INVALIDSTREAMNUMBER;
memset(info, 0, sizeof(*info));
return S_OK;
}
static HRESULT WINAPI video_mixer_transform_GetAttributes(IMFTransform *iface, IMFAttributes **attributes)
{
FIXME("%p, %p.\n", iface, attributes);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_GetInputStreamAttributes(IMFTransform *iface, DWORD id,
IMFAttributes **attributes)
{
struct video_mixer *mixer = impl_from_IMFTransform(iface);
struct input_stream *input;
HRESULT hr = S_OK;
TRACE("%p, %u, %p.\n", iface, id, attributes);
EnterCriticalSection(&mixer->cs);
if (!(input = video_mixer_get_input(mixer, id)))
hr = MF_E_INVALIDSTREAMNUMBER;
else
{
*attributes = input->attributes;
if (*attributes)
IMFAttributes_AddRef(*attributes);
}
LeaveCriticalSection(&mixer->cs);
return hr;
}
static HRESULT WINAPI video_mixer_transform_GetOutputStreamAttributes(IMFTransform *iface, DWORD id,
IMFAttributes **attributes)
{
TRACE("%p, %u, %p.\n", iface, id, attributes);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_DeleteInputStream(IMFTransform *iface, DWORD id)
{
struct video_mixer *mixer = impl_from_IMFTransform(iface);
struct input_stream *input;
HRESULT hr = S_OK;
unsigned int idx;
TRACE("%p, %u.\n", iface, id);
EnterCriticalSection(&mixer->cs);
/* Can't delete reference stream. */
if (!id || !(input = video_mixer_get_input(mixer, id)))
hr = MF_E_INVALIDSTREAMNUMBER;
else
{
mixer->input_count--;
idx = input - mixer->inputs;
if (idx < mixer->input_count)
{
if (mixer->inputs[idx].attributes)
IMFAttributes_Release(mixer->inputs[idx].attributes);
memmove(&mixer->inputs[idx], &mixer->inputs[idx + 1], (mixer->input_count - idx) * sizeof(*mixer->inputs));
memmove(&mixer->input_ids[idx], &mixer->input_ids[idx + 1], (mixer->input_count - idx) *
sizeof(*mixer->input_ids));
}
}
LeaveCriticalSection(&mixer->cs);
return hr;
}
static int video_mixer_add_input_sort_compare(const void *a, const void *b)
{
const struct input_stream *left = a, *right = b;
return left->id != right->id ? (left->id < right->id ? -1 : 1) : 0;
};
static HRESULT WINAPI video_mixer_transform_AddInputStreams(IMFTransform *iface, DWORD count, DWORD *ids)
{
struct video_mixer *mixer = impl_from_IMFTransform(iface);
struct input_stream inputs[MAX_MIXER_INPUT_STREAMS] = { {0} };
struct input_stream *input;
unsigned int i, len;
HRESULT hr = S_OK;
TRACE("%p, %u, %p.\n", iface, count, ids);
if (!ids)
return E_POINTER;
EnterCriticalSection(&mixer->cs);
if (count > ARRAY_SIZE(mixer->inputs) - mixer->input_count)
hr = E_INVALIDARG;
else
{
/* Test for collisions. */
memcpy(inputs, mixer->inputs, mixer->input_count * sizeof(*inputs));
for (i = 0; i < count; ++i)
inputs[i + mixer->input_count].id = ids[i];
len = mixer->input_count + count;
qsort(inputs, len, sizeof(*inputs), video_mixer_add_input_sort_compare);
for (i = 1; i < len; ++i)
{
if (inputs[i - 1].id == inputs[i].id)
{
hr = E_INVALIDARG;
break;
}
}
if (SUCCEEDED(hr))
{
for (i = 0; i < count; ++i)
{
if ((input = bsearch(&ids[i], inputs, len, sizeof(*inputs), video_mixer_compare_input_id)))
video_mixer_init_input(input);
}
memcpy(&mixer->input_ids[mixer->input_count], ids, count * sizeof(*ids));
memcpy(mixer->inputs, inputs, len * sizeof(*inputs));
mixer->input_count += count;
}
}
LeaveCriticalSection(&mixer->cs);
return hr;
}
static HRESULT WINAPI video_mixer_transform_GetInputAvailableType(IMFTransform *iface, DWORD id, DWORD index,
IMFMediaType **type)
{
FIXME("%p, %u, %u, %p.\n", iface, id, index, type);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_GetOutputAvailableType(IMFTransform *iface, DWORD id, DWORD index,
IMFMediaType **type)
{
FIXME("%p, %u, %u, %p.\n", iface, id, index, type);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_SetInputType(IMFTransform *iface, DWORD id, IMFMediaType *type, DWORD flags)
{
FIXME("%p, %u, %p, %#x.\n", iface, id, type, flags);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_SetOutputType(IMFTransform *iface, DWORD id, IMFMediaType *type, DWORD flags)
{
FIXME("%p, %u, %p, %#x.\n", iface, id, type, flags);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_GetInputCurrentType(IMFTransform *iface, DWORD id, IMFMediaType **type)
{
FIXME("%p, %u, %p.\n", iface, id, type);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_GetOutputCurrentType(IMFTransform *iface, DWORD id, IMFMediaType **type)
{
FIXME("%p, %u, %p.\n", iface, id, type);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_GetInputStatus(IMFTransform *iface, DWORD id, DWORD *flags)
{
FIXME("%p, %u, %p.\n", iface, id, flags);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_GetOutputStatus(IMFTransform *iface, DWORD *flags)
{
FIXME("%p, %p.\n", iface, flags);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_SetOutputBounds(IMFTransform *iface, LONGLONG lower, LONGLONG upper)
{
FIXME("%p, %s, %s.\n", iface, wine_dbgstr_longlong(lower), wine_dbgstr_longlong(upper));
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_ProcessEvent(IMFTransform *iface, DWORD id, IMFMediaEvent *event)
{
FIXME("%p, %u, %p.\n", iface, id, event);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_ProcessMessage(IMFTransform *iface, MFT_MESSAGE_TYPE message, ULONG_PTR param)
{
struct video_mixer *mixer = impl_from_IMFTransform(iface);
HRESULT hr = S_OK;
TRACE("%p, %u, %#lx.\n", iface, message, param);
switch (message)
{
case MFT_MESSAGE_SET_D3D_MANAGER:
EnterCriticalSection(&mixer->cs);
if (mixer->device_manager)
IDirect3DDeviceManager9_Release(mixer->device_manager);
mixer->device_manager = NULL;
if (param)
hr = IUnknown_QueryInterface((IUnknown *)param, &IID_IDirect3DDeviceManager9, (void **)&mixer->device_manager);
LeaveCriticalSection(&mixer->cs);
break;
default:
WARN("Message not handled %d.\n", message);
hr = E_NOTIMPL;
}
return hr;
}
static HRESULT WINAPI video_mixer_transform_ProcessInput(IMFTransform *iface, DWORD id, IMFSample *sample, DWORD flags)
{
FIXME("%p, %u, %p, %#x.\n", iface, id, sample, flags);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_transform_ProcessOutput(IMFTransform *iface, DWORD flags, DWORD count,
MFT_OUTPUT_DATA_BUFFER *samples, DWORD *status)
{
FIXME("%p, %#x, %u, %p, %p.\n", iface, flags, count, samples, status);
return E_NOTIMPL;
}
static const IMFTransformVtbl video_mixer_transform_vtbl =
{
video_mixer_transform_QueryInterface,
video_mixer_transform_AddRef,
video_mixer_transform_Release,
video_mixer_transform_GetStreamLimits,
video_mixer_transform_GetStreamCount,
video_mixer_transform_GetStreamIDs,
video_mixer_transform_GetInputStreamInfo,
video_mixer_transform_GetOutputStreamInfo,
video_mixer_transform_GetAttributes,
video_mixer_transform_GetInputStreamAttributes,
video_mixer_transform_GetOutputStreamAttributes,
video_mixer_transform_DeleteInputStream,
video_mixer_transform_AddInputStreams,
video_mixer_transform_GetInputAvailableType,
video_mixer_transform_GetOutputAvailableType,
video_mixer_transform_SetInputType,
video_mixer_transform_SetOutputType,
video_mixer_transform_GetInputCurrentType,
video_mixer_transform_GetOutputCurrentType,
video_mixer_transform_GetInputStatus,
video_mixer_transform_GetOutputStatus,
video_mixer_transform_SetOutputBounds,
video_mixer_transform_ProcessEvent,
video_mixer_transform_ProcessMessage,
video_mixer_transform_ProcessInput,
video_mixer_transform_ProcessOutput,
};
static HRESULT WINAPI video_mixer_device_id_QueryInterface(IMFVideoDeviceID *iface, REFIID riid, void **obj)
{
struct video_mixer *mixer = impl_from_IMFVideoDeviceID(iface);
return IMFTransform_QueryInterface(&mixer->IMFTransform_iface, riid, obj);
}
static ULONG WINAPI video_mixer_device_id_AddRef(IMFVideoDeviceID *iface)
{
struct video_mixer *mixer = impl_from_IMFVideoDeviceID(iface);
return IMFTransform_AddRef(&mixer->IMFTransform_iface);
}
static ULONG WINAPI video_mixer_device_id_Release(IMFVideoDeviceID *iface)
{
struct video_mixer *mixer = impl_from_IMFVideoDeviceID(iface);
return IMFTransform_Release(&mixer->IMFTransform_iface);
}
static HRESULT WINAPI video_mixer_device_id_GetDeviceID(IMFVideoDeviceID *iface, IID *device_id)
{
TRACE("%p, %p.\n", iface, device_id);
if (!device_id)
return E_POINTER;
memcpy(device_id, &IID_IDirect3DDevice9, sizeof(*device_id));
return S_OK;
}
static const IMFVideoDeviceIDVtbl video_mixer_device_id_vtbl =
{
video_mixer_device_id_QueryInterface,
video_mixer_device_id_AddRef,
video_mixer_device_id_Release,
video_mixer_device_id_GetDeviceID,
};
static HRESULT WINAPI video_mixer_service_client_QueryInterface(IMFTopologyServiceLookupClient *iface,
REFIID riid, void **obj)
{
struct video_mixer *mixer = impl_from_IMFTopologyServiceLookupClient(iface);
return IMFTransform_QueryInterface(&mixer->IMFTransform_iface, riid, obj);
}
static ULONG WINAPI video_mixer_service_client_AddRef(IMFTopologyServiceLookupClient *iface)
{
struct video_mixer *mixer = impl_from_IMFTopologyServiceLookupClient(iface);
return IMFTransform_AddRef(&mixer->IMFTransform_iface);
}
static ULONG WINAPI video_mixer_service_client_Release(IMFTopologyServiceLookupClient *iface)
{
struct video_mixer *mixer = impl_from_IMFTopologyServiceLookupClient(iface);
return IMFTransform_Release(&mixer->IMFTransform_iface);
}
static HRESULT WINAPI video_mixer_service_client_InitServicePointers(IMFTopologyServiceLookupClient *iface,
IMFTopologyServiceLookup *service_lookup)
{
FIXME("%p, %p.\n", iface, service_lookup);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_service_client_ReleaseServicePointers(IMFTopologyServiceLookupClient *iface)
{
FIXME("%p.\n", iface);
return E_NOTIMPL;
}
static const IMFTopologyServiceLookupClientVtbl video_mixer_service_client_vtbl =
{
video_mixer_service_client_QueryInterface,
video_mixer_service_client_AddRef,
video_mixer_service_client_Release,
video_mixer_service_client_InitServicePointers,
video_mixer_service_client_ReleaseServicePointers,
};
static HRESULT WINAPI video_mixer_control_QueryInterface(IMFVideoMixerControl2 *iface, REFIID riid, void **obj)
{
struct video_mixer *mixer = impl_from_IMFVideoMixerControl2(iface);
return IMFTransform_QueryInterface(&mixer->IMFTransform_iface, riid, obj);
}
static ULONG WINAPI video_mixer_control_AddRef(IMFVideoMixerControl2 *iface)
{
struct video_mixer *mixer = impl_from_IMFVideoMixerControl2(iface);
return IMFTransform_AddRef(&mixer->IMFTransform_iface);
}
static ULONG WINAPI video_mixer_control_Release(IMFVideoMixerControl2 *iface)
{
struct video_mixer *mixer = impl_from_IMFVideoMixerControl2(iface);
return IMFTransform_Release(&mixer->IMFTransform_iface);
}
static HRESULT WINAPI video_mixer_control_SetStreamZOrder(IMFVideoMixerControl2 *iface, DWORD stream_id, DWORD zorder)
{
FIXME("%p, %u, %u.\n", iface, stream_id, zorder);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_control_GetStreamZOrder(IMFVideoMixerControl2 *iface, DWORD stream_id, DWORD *zorder)
{
FIXME("%p, %u, %p.\n", iface, stream_id, zorder);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_control_SetStreamOutputRect(IMFVideoMixerControl2 *iface, DWORD stream_id,
const MFVideoNormalizedRect *rect)
{
FIXME("%p, %u, %p.\n", iface, stream_id, rect);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_control_GetStreamOutputRect(IMFVideoMixerControl2 *iface, DWORD stream_id,
MFVideoNormalizedRect *rect)
{
FIXME("%p, %u, %p.\n", iface, stream_id, rect);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_control_SetMixingPrefs(IMFVideoMixerControl2 *iface, DWORD flags)
{
FIXME("%p, %#x.\n", iface, flags);
return E_NOTIMPL;
}
static HRESULT WINAPI video_mixer_control_GetMixingPrefs(IMFVideoMixerControl2 *iface, DWORD *flags)
{
FIXME("%p, %p.\n", iface, flags);
return E_NOTIMPL;
}
static const IMFVideoMixerControl2Vtbl video_mixer_control_vtbl =
{
video_mixer_control_QueryInterface,
video_mixer_control_AddRef,
video_mixer_control_Release,
video_mixer_control_SetStreamZOrder,
video_mixer_control_GetStreamZOrder,
video_mixer_control_SetStreamOutputRect,
video_mixer_control_GetStreamOutputRect,
video_mixer_control_SetMixingPrefs,
video_mixer_control_GetMixingPrefs,
};
HRESULT WINAPI MFCreateVideoMixer(IUnknown *owner, REFIID riid_device, REFIID riid, void **obj)
{
TRACE("%p, %s, %s, %p.\n", owner, debugstr_guid(riid_device), debugstr_guid(riid), obj);
*obj = NULL;
if (!IsEqualIID(riid_device, &IID_IDirect3DDevice9))
return E_INVALIDARG;
return CoCreateInstance(&CLSID_MFVideoMixer9, owner, CLSCTX_INPROC_SERVER, riid, obj);
}
HRESULT evr_mixer_create(IUnknown *outer, void **out)
{
struct video_mixer *object;
if (outer)
return E_NOINTERFACE;
if (!(object = calloc(1, sizeof(*object))))
return E_OUTOFMEMORY;
object->IMFTransform_iface.lpVtbl = &video_mixer_transform_vtbl;
object->IMFVideoDeviceID_iface.lpVtbl = &video_mixer_device_id_vtbl;
object->IMFTopologyServiceLookupClient_iface.lpVtbl = &video_mixer_service_client_vtbl;
object->IMFVideoMixerControl2_iface.lpVtbl = &video_mixer_control_vtbl;
object->refcount = 1;
object->input_count = 1;
video_mixer_init_input(&object->inputs[0]);
InitializeCriticalSection(&object->cs);
*out = &object->IMFTransform_iface;
return S_OK;
}
HRESULT WINAPI MFCreateVideoSampleFromSurface(IUnknown *surface, IMFSample **sample)
{
FIXME("%p, %p.\n", surface, sample);
return E_NOTIMPL;
}