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Sweden-Number/dlls/qedit/mediadet.c

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/* DirectShow Media Detector object (QEDIT.DLL)
*
* Copyright 2008 Google (Lei Zhang, Dan Hipschman)
*
* 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
*/
#include <assert.h>
#include <stdarg.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "ole2.h"
#include "qedit_private.h"
#include "wine/strmbase.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(qedit);
typedef struct MediaDetImpl {
IUnknown IUnknown_inner;
IMediaDet IMediaDet_iface;
IUnknown *outer_unk;
LONG ref;
IGraphBuilder *graph;
IBaseFilter *source;
IBaseFilter *splitter;
WCHAR *filename;
LONG num_streams;
LONG cur_stream;
IPin *cur_pin;
} MediaDetImpl;
static inline MediaDetImpl *impl_from_IUnknown(IUnknown *iface)
{
return CONTAINING_RECORD(iface, MediaDetImpl, IUnknown_inner);
}
static inline MediaDetImpl *impl_from_IMediaDet(IMediaDet *iface)
{
return CONTAINING_RECORD(iface, MediaDetImpl, IMediaDet_iface);
}
static void MD_cleanup(MediaDetImpl *This)
{
if (This->cur_pin) IPin_Release(This->cur_pin);
This->cur_pin = NULL;
if (This->source) IBaseFilter_Release(This->source);
This->source = NULL;
if (This->splitter) IBaseFilter_Release(This->splitter);
This->splitter = NULL;
if (This->graph) IGraphBuilder_Release(This->graph);
This->graph = NULL;
if (This->filename)
free(This->filename);
This->filename = NULL;
This->num_streams = -1;
This->cur_stream = 0;
}
static HRESULT get_filter_info(IMoniker *moniker, GUID *clsid, VARIANT *var)
{
IPropertyBag *prop_bag;
HRESULT hr;
if (FAILED(hr = IMoniker_BindToStorage(moniker, NULL, NULL, &IID_IPropertyBag, (void **)&prop_bag)))
{
ERR("Failed to get property bag, hr %#x.\n", hr);
return hr;
}
VariantInit(var);
V_VT(var) = VT_BSTR;
if (FAILED(hr = IPropertyBag_Read(prop_bag, L"CLSID", var, NULL)))
{
ERR("Failed to get CLSID, hr %#x.\n", hr);
IPropertyBag_Release(prop_bag);
return hr;
}
CLSIDFromString(V_BSTR(var), clsid);
VariantClear(var);
if (FAILED(hr = IPropertyBag_Read(prop_bag, L"FriendlyName", var, NULL)))
ERR("Failed to get name, hr %#x.\n", hr);
IPropertyBag_Release(prop_bag);
return hr;
}
static HRESULT find_splitter(MediaDetImpl *detector)
{
IPin *source_pin, *splitter_pin;
IFileSourceFilter *file_source;
IEnumMoniker *enum_moniker;
IFilterMapper2 *mapper;
IBaseFilter *splitter;
IEnumPins *enum_pins;
LPOLESTR filename;
AM_MEDIA_TYPE mt;
IMoniker *mon;
GUID type[2];
VARIANT var;
HRESULT hr;
GUID clsid;
if (FAILED(hr = IBaseFilter_QueryInterface(detector->source,
&IID_IFileSourceFilter, (void **)&file_source)))
{
ERR("Failed to get file source interface.\n");
return hr;
}
hr = IFileSourceFilter_GetCurFile(file_source, &filename, &mt);
IFileSourceFilter_Release(file_source);
CoTaskMemFree(filename);
if (FAILED(hr))
{
ERR("Failed to get current file, hr %#x.\n", hr);
return hr;
}
type[0] = mt.majortype;
type[1] = mt.subtype;
FreeMediaType(&mt);
if (FAILED(hr = IBaseFilter_EnumPins(detector->source, &enum_pins)))
{
ERR("Failed to enumerate source pins, hr %#x.\n", hr);
return hr;
}
hr = IEnumPins_Next(enum_pins, 1, &source_pin, NULL);
IEnumPins_Release(enum_pins);
if (FAILED(hr))
{
ERR("Failed to get source pin, hr %#x.\n", hr);
return hr;
}
if (FAILED(hr = CoCreateInstance(&CLSID_FilterMapper2, NULL,
CLSCTX_INPROC_SERVER, &IID_IFilterMapper2, (void **)&mapper)))
{
IPin_Release(source_pin);
return hr;
}
hr = IFilterMapper2_EnumMatchingFilters(mapper, &enum_moniker, 0, TRUE,
MERIT_UNLIKELY, FALSE, 1, type, NULL, NULL, FALSE, TRUE, 0, NULL, NULL, NULL);
IFilterMapper2_Release(mapper);
if (FAILED(hr))
{
IPin_Release(source_pin);
return hr;
}
hr = E_NOINTERFACE;
while (IEnumMoniker_Next(enum_moniker, 1, &mon, NULL) == S_OK)
{
hr = get_filter_info(mon, &clsid, &var);
IMoniker_Release(mon);
if (FAILED(hr))
continue;
hr = CoCreateInstance(&clsid, NULL, CLSCTX_INPROC_SERVER,
&IID_IBaseFilter, (void **)&splitter);
if (FAILED(hr))
{
VariantClear(&var);
continue;
}
hr = IGraphBuilder_AddFilter(detector->graph, splitter, V_BSTR(&var));
VariantClear(&var);
if (FAILED(hr))
{
IBaseFilter_Release(splitter);
continue;
}
hr = IBaseFilter_EnumPins(splitter, &enum_pins);
if (FAILED(hr))
goto next;
hr = IEnumPins_Next(enum_pins, 1, &splitter_pin, NULL);
IEnumPins_Release(enum_pins);
if (hr != S_OK)
goto next;
hr = IPin_Connect(source_pin, splitter_pin, NULL);
IPin_Release(splitter_pin);
if (SUCCEEDED(hr))
{
detector->splitter = splitter;
break;
}
next:
IGraphBuilder_RemoveFilter(detector->graph, splitter);
IBaseFilter_Release(splitter);
}
IEnumMoniker_Release(enum_moniker);
IPin_Release(source_pin);
return hr;
}
/* MediaDet inner IUnknown */
static HRESULT WINAPI MediaDet_inner_QueryInterface(IUnknown *iface, REFIID riid, void **ppv)
{
MediaDetImpl *This = impl_from_IUnknown(iface);
TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
*ppv = NULL;
if (IsEqualIID(riid, &IID_IUnknown))
*ppv = &This->IUnknown_inner;
else if (IsEqualIID(riid, &IID_IMediaDet))
*ppv = &This->IMediaDet_iface;
else
WARN("(%p, %s,%p): not found\n", This, debugstr_guid(riid), ppv);
if (!*ppv)
return E_NOINTERFACE;
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI MediaDet_inner_AddRef(IUnknown *iface)
{
MediaDetImpl *This = impl_from_IUnknown(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) new ref = %u\n", This, ref);
return ref;
}
static ULONG WINAPI MediaDet_inner_Release(IUnknown *iface)
{
MediaDetImpl *This = impl_from_IUnknown(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) new ref = %u\n", This, ref);
if (ref == 0)
{
MD_cleanup(This);
CoTaskMemFree(This);
}
return ref;
}
static const IUnknownVtbl mediadet_vtbl =
{
MediaDet_inner_QueryInterface,
MediaDet_inner_AddRef,
MediaDet_inner_Release,
};
/* IMediaDet implementation */
static HRESULT WINAPI MediaDet_QueryInterface(IMediaDet *iface, REFIID riid, void **ppv)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
return IUnknown_QueryInterface(This->outer_unk, riid, ppv);
}
static ULONG WINAPI MediaDet_AddRef(IMediaDet *iface)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
return IUnknown_AddRef(This->outer_unk);
}
static ULONG WINAPI MediaDet_Release(IMediaDet *iface)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
return IUnknown_Release(This->outer_unk);
}
static HRESULT WINAPI MediaDet_get_Filter(IMediaDet *iface, IUnknown **filter)
{
MediaDetImpl *detector = impl_from_IMediaDet(iface);
TRACE("detector %p, filter %p.\n", detector, filter);
if (!filter)
return E_POINTER;
*filter = (IUnknown *)detector->source;
if (*filter)
IUnknown_AddRef(*filter);
else
return S_FALSE;
return S_OK;
}
static HRESULT WINAPI MediaDet_put_Filter(IMediaDet *iface, IUnknown *unk)
{
MediaDetImpl *detector = impl_from_IMediaDet(iface);
IGraphBuilder *graph;
IBaseFilter *filter;
HRESULT hr;
TRACE("detector %p, unk %p.\n", detector, unk);
if (!unk)
return E_POINTER;
if (FAILED(hr = IUnknown_QueryInterface(unk, &IID_IBaseFilter, (void **)&filter)))
{
WARN("Object does not expose IBaseFilter.\n");
return hr;
}
if (detector->graph)
MD_cleanup(detector);
if (FAILED(hr = CoCreateInstance(&CLSID_FilterGraph, NULL,
CLSCTX_INPROC_SERVER, &IID_IGraphBuilder, (void **)&graph)))
{
IBaseFilter_Release(filter);
return hr;
}
if (FAILED(hr = IGraphBuilder_AddFilter(graph, filter, L"Source")))
{
IGraphBuilder_Release(graph);
IBaseFilter_Release(filter);
return hr;
}
detector->graph = graph;
detector->source = filter;
if (FAILED(find_splitter(detector)))
{
detector->splitter = detector->source;
IBaseFilter_AddRef(detector->splitter);
}
return IMediaDet_put_CurrentStream(&detector->IMediaDet_iface, 0);
}
static HRESULT WINAPI MediaDet_get_OutputStreams(IMediaDet* iface, LONG *pVal)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
IEnumPins *pins;
IPin *pin;
HRESULT hr;
TRACE("(%p)\n", This);
if (!This->splitter)
return E_INVALIDARG;
if (This->num_streams != -1)
{
*pVal = This->num_streams;
return S_OK;
}
*pVal = 0;
hr = IBaseFilter_EnumPins(This->splitter, &pins);
if (FAILED(hr))
return hr;
while (IEnumPins_Next(pins, 1, &pin, NULL) == S_OK)
{
PIN_DIRECTION dir;
hr = IPin_QueryDirection(pin, &dir);
IPin_Release(pin);
if (FAILED(hr))
{
IEnumPins_Release(pins);
return hr;
}
if (dir == PINDIR_OUTPUT)
++*pVal;
}
IEnumPins_Release(pins);
This->num_streams = *pVal;
return S_OK;
}
static HRESULT WINAPI MediaDet_get_CurrentStream(IMediaDet* iface, LONG *pVal)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
TRACE("(%p)\n", This);
if (!pVal)
return E_POINTER;
*pVal = This->cur_stream;
return S_OK;
}
static HRESULT SetCurPin(MediaDetImpl *This, LONG strm)
{
IEnumPins *pins;
IPin *pin;
HRESULT hr;
assert(This->splitter);
assert(0 <= strm && strm < This->num_streams);
if (This->cur_pin)
{
IPin_Release(This->cur_pin);
This->cur_pin = NULL;
}
hr = IBaseFilter_EnumPins(This->splitter, &pins);
if (FAILED(hr))
return hr;
while (IEnumPins_Next(pins, 1, &pin, NULL) == S_OK && !This->cur_pin)
{
PIN_DIRECTION dir;
hr = IPin_QueryDirection(pin, &dir);
if (FAILED(hr))
{
IPin_Release(pin);
IEnumPins_Release(pins);
return hr;
}
if (dir == PINDIR_OUTPUT && strm-- == 0)
This->cur_pin = pin;
else
IPin_Release(pin);
}
IEnumPins_Release(pins);
assert(This->cur_pin);
return S_OK;
}
static HRESULT WINAPI MediaDet_put_CurrentStream(IMediaDet* iface, LONG newVal)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
HRESULT hr;
TRACE("(%p)->(%d)\n", This, newVal);
if (This->num_streams == -1)
{
LONG n;
hr = MediaDet_get_OutputStreams(iface, &n);
if (FAILED(hr))
return hr;
}
if (newVal < 0 || This->num_streams <= newVal)
return E_INVALIDARG;
hr = SetCurPin(This, newVal);
if (FAILED(hr))
return hr;
This->cur_stream = newVal;
return S_OK;
}
static HRESULT WINAPI MediaDet_get_StreamType(IMediaDet *iface, GUID *majortype)
{
MediaDetImpl *detector = impl_from_IMediaDet(iface);
AM_MEDIA_TYPE mt;
HRESULT hr;
TRACE("detector %p, majortype %p.\n", detector, majortype);
if (!majortype)
return E_POINTER;
if (SUCCEEDED(hr = IMediaDet_get_StreamMediaType(iface, &mt)))
{
*majortype = mt.majortype;
FreeMediaType(&mt);
}
return hr;
}
static HRESULT WINAPI MediaDet_get_StreamTypeB(IMediaDet *iface, BSTR *bstr)
{
MediaDetImpl *detector = impl_from_IMediaDet(iface);
HRESULT hr;
GUID guid;
TRACE("detector %p, bstr %p.\n", detector, bstr);
if (SUCCEEDED(hr = IMediaDet_get_StreamType(iface, &guid)))
{
if (!(*bstr = SysAllocStringLen(NULL, CHARS_IN_GUID - 1)))
return E_OUTOFMEMORY;
StringFromGUID2(&guid, *bstr, CHARS_IN_GUID);
}
return hr;
}
static HRESULT WINAPI MediaDet_get_StreamLength(IMediaDet* iface, double *pVal)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
FIXME("(%p): stub!\n", This);
return VFW_E_INVALIDMEDIATYPE;
}
static HRESULT WINAPI MediaDet_get_Filename(IMediaDet* iface, BSTR *pVal)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
TRACE("(%p)\n", This);
if (!pVal)
return E_POINTER;
*pVal = NULL;
/* MSDN says it should return E_FAIL if no file is open, but tests
show otherwise. */
if (!This->filename)
return S_OK;
*pVal = SysAllocString(This->filename);
if (!*pVal)
return E_OUTOFMEMORY;
return S_OK;
}
static HRESULT WINAPI MediaDet_put_Filename(IMediaDet *iface, BSTR filename)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
IGraphBuilder *gb;
IBaseFilter *bf;
HRESULT hr;
TRACE("detector %p, filename %s.\n", This, debugstr_w(filename));
if (This->graph)
{
WARN("MSDN says not to call this method twice\n");
MD_cleanup(This);
}
hr = CoCreateInstance(&CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,
&IID_IGraphBuilder, (void **) &gb);
if (FAILED(hr))
return hr;
if (FAILED(hr = IGraphBuilder_AddSourceFilter(gb, filename, L"Source", &bf)))
{
IGraphBuilder_Release(gb);
return hr;
}
if (!(This->filename = wcsdup(filename)))
{
IBaseFilter_Release(bf);
IGraphBuilder_Release(gb);
return E_OUTOFMEMORY;
}
This->graph = gb;
This->source = bf;
hr = find_splitter(This);
if (FAILED(hr))
return hr;
return MediaDet_put_CurrentStream(iface, 0);
}
static HRESULT WINAPI MediaDet_GetBitmapBits(IMediaDet* iface,
double StreamTime,
LONG *pBufferSize, char *pBuffer,
LONG Width, LONG Height)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
FIXME("(%p)->(%f %p %p %d %d): not implemented!\n", This, StreamTime, pBufferSize, pBuffer,
Width, Height);
return E_NOTIMPL;
}
static HRESULT WINAPI MediaDet_WriteBitmapBits(IMediaDet* iface,
double StreamTime, LONG Width,
LONG Height, BSTR Filename)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
FIXME("(%p)->(%f %d %d %p): not implemented!\n", This, StreamTime, Width, Height, Filename);
return E_NOTIMPL;
}
static HRESULT WINAPI MediaDet_get_StreamMediaType(IMediaDet* iface,
AM_MEDIA_TYPE *pVal)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
IEnumMediaTypes *types;
AM_MEDIA_TYPE *pmt;
HRESULT hr;
TRACE("(%p)\n", This);
if (!pVal)
return E_POINTER;
if (!This->cur_pin)
return E_INVALIDARG;
hr = IPin_EnumMediaTypes(This->cur_pin, &types);
if (SUCCEEDED(hr))
{
hr = (IEnumMediaTypes_Next(types, 1, &pmt, NULL) == S_OK
? S_OK
: E_NOINTERFACE);
IEnumMediaTypes_Release(types);
}
if (SUCCEEDED(hr))
{
*pVal = *pmt;
CoTaskMemFree(pmt);
}
return hr;
}
static HRESULT WINAPI MediaDet_GetSampleGrabber(IMediaDet* iface,
ISampleGrabber **ppVal)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
FIXME("(%p)->(%p): not implemented!\n", This, ppVal);
return E_NOTIMPL;
}
static HRESULT WINAPI MediaDet_get_FrameRate(IMediaDet* iface, double *pVal)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
AM_MEDIA_TYPE mt;
VIDEOINFOHEADER *vh;
HRESULT hr;
TRACE("(%p)\n", This);
if (!pVal)
return E_POINTER;
hr = MediaDet_get_StreamMediaType(iface, &mt);
if (FAILED(hr))
return hr;
if (!IsEqualGUID(&mt.majortype, &MEDIATYPE_Video))
{
CoTaskMemFree(mt.pbFormat);
return VFW_E_INVALIDMEDIATYPE;
}
vh = (VIDEOINFOHEADER *) mt.pbFormat;
*pVal = 1.0e7 / (double) vh->AvgTimePerFrame;
CoTaskMemFree(mt.pbFormat);
return S_OK;
}
static HRESULT WINAPI MediaDet_EnterBitmapGrabMode(IMediaDet* iface,
double SeekTime)
{
MediaDetImpl *This = impl_from_IMediaDet(iface);
FIXME("(%p)->(%f): not implemented!\n", This, SeekTime);
return E_NOTIMPL;
}
static const IMediaDetVtbl IMediaDet_VTable =
{
MediaDet_QueryInterface,
MediaDet_AddRef,
MediaDet_Release,
MediaDet_get_Filter,
MediaDet_put_Filter,
MediaDet_get_OutputStreams,
MediaDet_get_CurrentStream,
MediaDet_put_CurrentStream,
MediaDet_get_StreamType,
MediaDet_get_StreamTypeB,
MediaDet_get_StreamLength,
MediaDet_get_Filename,
MediaDet_put_Filename,
MediaDet_GetBitmapBits,
MediaDet_WriteBitmapBits,
MediaDet_get_StreamMediaType,
MediaDet_GetSampleGrabber,
MediaDet_get_FrameRate,
MediaDet_EnterBitmapGrabMode,
};
HRESULT media_detector_create(IUnknown *pUnkOuter, IUnknown **ppv)
{
MediaDetImpl* obj = NULL;
TRACE("(%p,%p)\n", pUnkOuter, ppv);
obj = CoTaskMemAlloc(sizeof(MediaDetImpl));
if (NULL == obj) {
*ppv = NULL;
return E_OUTOFMEMORY;
}
ZeroMemory(obj, sizeof(MediaDetImpl));
obj->ref = 1;
obj->IUnknown_inner.lpVtbl = &mediadet_vtbl;
obj->IMediaDet_iface.lpVtbl = &IMediaDet_VTable;
obj->graph = NULL;
obj->source = NULL;
obj->splitter = NULL;
obj->cur_pin = NULL;
obj->num_streams = -1;
obj->cur_stream = 0;
if (pUnkOuter)
obj->outer_unk = pUnkOuter;
else
obj->outer_unk = &obj->IUnknown_inner;
*ppv = &obj->IUnknown_inner;
return S_OK;
}
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