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/* DirectShow Sample Grabber object (QEDIT.DLL)
*
* Copyright 2009 Paul Chitescu
*
* 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/debug.h"
#include "wine/strmbase.h"
WINE_DEFAULT_DEBUG_CHANNEL(qedit);
static const WCHAR pin_in_name[] = { 'I', 'n', 0 };
static const WCHAR pin_out_name[] = { 'O', 'u', 't', 0 };
static IEnumMediaTypes *mediaenum_create(const AM_MEDIA_TYPE *mtype, BOOL past);
/* Single media type enumerator */
typedef struct _ME_Impl {
IEnumMediaTypes IEnumMediaTypes_iface;
LONG refCount;
BOOL past;
AM_MEDIA_TYPE mtype;
} ME_Impl;
/* IEnumMediaTypes interface implementation */
static inline ME_Impl *impl_from_IEnumMediaTypes(IEnumMediaTypes *iface)
{
return CONTAINING_RECORD(iface, ME_Impl, IEnumMediaTypes_iface);
}
static HRESULT WINAPI Single_IEnumMediaTypes_QueryInterface(IEnumMediaTypes *iface, REFIID riid,
void **ret_iface)
{
ME_Impl *This = impl_from_IEnumMediaTypes(iface);
TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ret_iface);
if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IEnumMediaTypes)) {
*ret_iface = iface;
IEnumMediaTypes_AddRef(iface);
return S_OK;
}
*ret_iface = NULL;
WARN("(%p, %s,%p): not found\n", This, debugstr_guid(riid), ret_iface);
return E_NOINTERFACE;
}
static ULONG WINAPI Single_IEnumMediaTypes_AddRef(IEnumMediaTypes *iface)
{
ME_Impl *This = impl_from_IEnumMediaTypes(iface);
ULONG refCount = InterlockedIncrement(&This->refCount);
TRACE("(%p) new ref = %u\n", This, refCount);
return refCount;
}
static ULONG WINAPI Single_IEnumMediaTypes_Release(IEnumMediaTypes *iface)
{
ME_Impl *This = impl_from_IEnumMediaTypes(iface);
ULONG refCount = InterlockedDecrement(&This->refCount);
TRACE("(%p) new ref = %u\n", This, refCount);
if (refCount == 0)
{
CoTaskMemFree(This->mtype.pbFormat);
CoTaskMemFree(This);
}
return refCount;
}
/* IEnumMediaTypes */
static HRESULT WINAPI Single_IEnumMediaTypes_Next(IEnumMediaTypes *iface, ULONG nTypes,
AM_MEDIA_TYPE **types, ULONG *fetched)
{
ME_Impl *This = impl_from_IEnumMediaTypes(iface);
ULONG count = 0;
TRACE("(%p)->(%u, %p, %p)\n", This, nTypes, types, fetched);
if (!nTypes)
return E_INVALIDARG;
if (!types || ((nTypes != 1) && !fetched))
return E_POINTER;
if (!This->past && !IsEqualGUID(&This->mtype.majortype,&GUID_NULL)) {
AM_MEDIA_TYPE *mtype = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
*mtype = This->mtype;
if (mtype->cbFormat) {
mtype->pbFormat = CoTaskMemAlloc(mtype->cbFormat);
CopyMemory(mtype->pbFormat, This->mtype.pbFormat, mtype->cbFormat);
}
*types = mtype;
This->past = TRUE;
count = 1;
}
if (fetched)
*fetched = count;
return (count == nTypes) ? S_OK : S_FALSE;
}
static HRESULT WINAPI Single_IEnumMediaTypes_Skip(IEnumMediaTypes *iface, ULONG nTypes)
{
ME_Impl *This = impl_from_IEnumMediaTypes(iface);
TRACE("(%p)->(%u)\n", This, nTypes);
if (nTypes)
This->past = TRUE;
return This->past ? S_FALSE : S_OK;
}
static HRESULT WINAPI Single_IEnumMediaTypes_Reset(IEnumMediaTypes *iface)
{
ME_Impl *This = impl_from_IEnumMediaTypes(iface);
TRACE("(%p)->()\n", This);
This->past = FALSE;
return S_OK;
}
static HRESULT WINAPI Single_IEnumMediaTypes_Clone(IEnumMediaTypes *iface, IEnumMediaTypes **me)
{
ME_Impl *This = impl_from_IEnumMediaTypes(iface);
TRACE("(%p)->(%p)\n", This, me);
if (!me)
return E_POINTER;
*me = mediaenum_create(&This->mtype, This->past);
if (!*me)
return E_OUTOFMEMORY;
return S_OK;
}
/* Virtual tables and constructor */
static const IEnumMediaTypesVtbl IEnumMediaTypes_VTable =
{
Single_IEnumMediaTypes_QueryInterface,
Single_IEnumMediaTypes_AddRef,
Single_IEnumMediaTypes_Release,
Single_IEnumMediaTypes_Next,
Single_IEnumMediaTypes_Skip,
Single_IEnumMediaTypes_Reset,
Single_IEnumMediaTypes_Clone,
};
static IEnumMediaTypes *mediaenum_create(const AM_MEDIA_TYPE *mtype, BOOL past)
{
ME_Impl *obj = CoTaskMemAlloc(sizeof(ME_Impl));
if (!obj)
return NULL;
ZeroMemory(obj, sizeof(*obj));
obj->IEnumMediaTypes_iface.lpVtbl = &IEnumMediaTypes_VTable;
obj->refCount = 1;
obj->past = past;
if (mtype) {
obj->mtype = *mtype;
obj->mtype.pUnk = NULL;
if (mtype->cbFormat) {
obj->mtype.pbFormat = CoTaskMemAlloc(mtype->cbFormat);
CopyMemory(obj->mtype.pbFormat, mtype->pbFormat, mtype->cbFormat);
}
else
obj->mtype.pbFormat = NULL;
}
else
obj->mtype.majortype = GUID_NULL;
return &obj->IEnumMediaTypes_iface;
}
/* Sample Grabber pin implementation */
typedef struct _SG_Pin {
IPin IPin_iface;
PIN_DIRECTION dir;
WCHAR const *name;
struct _SG_Impl *sg;
IPin *pair;
} SG_Pin;
static inline SG_Pin *impl_from_IPin(IPin *iface)
{
return CONTAINING_RECORD(iface, SG_Pin, IPin_iface);
}
/* Sample Grabber filter implementation */
typedef struct _SG_Impl {
struct strmbase_filter filter;
ISampleGrabber ISampleGrabber_iface;
/* IMediaSeeking and IMediaPosition are implemented by ISeekingPassThru */
IUnknown* seekthru_unk;
AM_MEDIA_TYPE mtype;
SG_Pin pin_in;
SG_Pin pin_out;
IMemInputPin IMemInputPin_iface;
IMemAllocator *allocator;
IMemInputPin *memOutput;
ISampleGrabberCB *grabberIface;
LONG grabberMethod;
LONG oneShot;
LONG bufferLen;
void* bufferData;
} SG_Impl;
enum {
OneShot_None,
OneShot_Wait,
OneShot_Past,
};
static inline SG_Impl *impl_from_strmbase_filter(struct strmbase_filter *iface)
{
return CONTAINING_RECORD(iface, SG_Impl, filter);
}
static inline SG_Impl *impl_from_IBaseFilter(IBaseFilter *iface)
{
return CONTAINING_RECORD(iface, SG_Impl, filter.IBaseFilter_iface);
}
static inline SG_Impl *impl_from_ISampleGrabber(ISampleGrabber *iface)
{
return CONTAINING_RECORD(iface, SG_Impl, ISampleGrabber_iface);
}
static inline SG_Impl *impl_from_IMemInputPin(IMemInputPin *iface)
{
return CONTAINING_RECORD(iface, SG_Impl, IMemInputPin_iface);
}
/* Cleanup at end of life */
static void SampleGrabber_cleanup(SG_Impl *This)
{
TRACE("(%p)\n", This);
if (This->filter.filterInfo.pGraph)
WARN("(%p) still joined to filter graph %p\n", This, This->filter.filterInfo.pGraph);
if (This->allocator)
IMemAllocator_Release(This->allocator);
if (This->memOutput)
IMemInputPin_Release(This->memOutput);
if (This->grabberIface)
ISampleGrabberCB_Release(This->grabberIface);
CoTaskMemFree(This->mtype.pbFormat);
CoTaskMemFree(This->bufferData);
if(This->seekthru_unk)
IUnknown_Release(This->seekthru_unk);
}
static IPin *sample_grabber_get_pin(struct strmbase_filter *iface, unsigned int index)
{
SG_Impl *filter = impl_from_strmbase_filter(iface);
if (index == 0)
return &filter->pin_in.IPin_iface;
else if (index == 1)
return &filter->pin_out.IPin_iface;
return NULL;
}
static void sample_grabber_destroy(struct strmbase_filter *iface)
{
SG_Impl *filter = impl_from_strmbase_filter(iface);
SampleGrabber_cleanup(filter);
strmbase_filter_cleanup(&filter->filter);
CoTaskMemFree(filter);
}
static HRESULT sample_grabber_query_interface(struct strmbase_filter *iface, REFIID iid, void **out)
{
SG_Impl *filter = impl_from_strmbase_filter(iface);
if (IsEqualGUID(iid, &IID_ISampleGrabber))
*out = &filter->ISampleGrabber_iface;
else
return E_NOINTERFACE;
IUnknown_AddRef((IUnknown *)*out);
return S_OK;
}
static const struct strmbase_filter_ops filter_ops =
{
.filter_get_pin = sample_grabber_get_pin,
.filter_destroy = sample_grabber_destroy,
.filter_query_interface = sample_grabber_query_interface,
};
/* Helper that buffers data and/or calls installed sample callbacks */
static void SampleGrabber_callback(SG_Impl *This, IMediaSample *sample)
{
double time = 0.0;
REFERENCE_TIME tStart, tEnd;
if (This->bufferLen >= 0) {
BYTE *data = 0;
LONG size = IMediaSample_GetActualDataLength(sample);
if (size >= 0 && SUCCEEDED(IMediaSample_GetPointer(sample, &data))) {
if (!data)
size = 0;
EnterCriticalSection(&This->filter.csFilter);
if (This->bufferLen != size) {
CoTaskMemFree(This->bufferData);
This->bufferData = size ? CoTaskMemAlloc(size) : NULL;
This->bufferLen = size;
}
if (size)
CopyMemory(This->bufferData, data, size);
LeaveCriticalSection(&This->filter.csFilter);
}
}
if (!This->grabberIface)
return;
if (SUCCEEDED(IMediaSample_GetTime(sample, &tStart, &tEnd)))
time = 1e-7 * tStart;
switch (This->grabberMethod) {
case 0:
{
ULONG ref = IMediaSample_AddRef(sample);
ISampleGrabberCB_SampleCB(This->grabberIface, time, sample);
ref = IMediaSample_Release(sample) + 1 - ref;
if (ref)
{
ERR("(%p) Callback referenced sample %p by %u\n", This, sample, ref);
/* ugly as hell but some apps are sooo buggy */
while (ref--)
IMediaSample_Release(sample);
}
}
break;
case 1:
{
BYTE *data = 0;
LONG size = IMediaSample_GetActualDataLength(sample);
if (size && SUCCEEDED(IMediaSample_GetPointer(sample, &data)) && data)
ISampleGrabberCB_BufferCB(This->grabberIface, time, data, size);
}
break;
case -1:
break;
default:
FIXME("unsupported method %d\n", This->grabberMethod);
/* do not bother us again */
This->grabberMethod = -1;
}
}
/* IMediaFilter */
static HRESULT WINAPI
SampleGrabber_IBaseFilter_Stop(IBaseFilter *iface)
{
SG_Impl *This = impl_from_IBaseFilter(iface);
TRACE("(%p)\n", This);
This->filter.state = State_Stopped;
return S_OK;
}
/* IMediaFilter */
static HRESULT WINAPI
SampleGrabber_IBaseFilter_Pause(IBaseFilter *iface)
{
SG_Impl *This = impl_from_IBaseFilter(iface);
TRACE("(%p)\n", This);
This->filter.state = State_Paused;
return S_OK;
}
/* IMediaFilter */
static HRESULT WINAPI
SampleGrabber_IBaseFilter_Run(IBaseFilter *iface, REFERENCE_TIME tStart)
{
SG_Impl *This = impl_from_IBaseFilter(iface);
TRACE("(%p)\n", This);
This->filter.state = State_Running;
return S_OK;
}
/* IBaseFilter */
static HRESULT WINAPI
SampleGrabber_IBaseFilter_JoinFilterGraph(IBaseFilter *iface, IFilterGraph *graph, LPCWSTR name)
{
SG_Impl *This = impl_from_IBaseFilter(iface);
TRACE("(%p)->(%p, %s)\n", This, graph, debugstr_w(name));
BaseFilterImpl_JoinFilterGraph(iface, graph, name);
This->oneShot = OneShot_None;
return S_OK;
}
/* SampleGrabber implementation of ISampleGrabber interface */
/* IUnknown */
static HRESULT WINAPI
SampleGrabber_ISampleGrabber_QueryInterface(ISampleGrabber *iface, REFIID riid, void **ppv)
{
SG_Impl *This = impl_from_ISampleGrabber(iface);
return IUnknown_QueryInterface(This->filter.outer_unk, riid, ppv);
}
/* IUnknown */
static ULONG WINAPI
SampleGrabber_ISampleGrabber_AddRef(ISampleGrabber *iface)
{
SG_Impl *This = impl_from_ISampleGrabber(iface);
return IUnknown_AddRef(This->filter.outer_unk);
}
/* IUnknown */
static ULONG WINAPI
SampleGrabber_ISampleGrabber_Release(ISampleGrabber *iface)
{
SG_Impl *This = impl_from_ISampleGrabber(iface);
return IUnknown_Release(This->filter.outer_unk);
}
/* ISampleGrabber */
static HRESULT WINAPI
SampleGrabber_ISampleGrabber_SetOneShot(ISampleGrabber *iface, BOOL oneShot)
{
SG_Impl *This = impl_from_ISampleGrabber(iface);
TRACE("(%p)->(%u)\n", This, oneShot);
This->oneShot = oneShot ? OneShot_Wait : OneShot_None;
return S_OK;
}
/* ISampleGrabber */
static HRESULT WINAPI
SampleGrabber_ISampleGrabber_SetMediaType(ISampleGrabber *iface, const AM_MEDIA_TYPE *type)
{
SG_Impl *This = impl_from_ISampleGrabber(iface);
TRACE("(%p)->(%p)\n", This, type);
if (!type)
return E_POINTER;
TRACE("Media type: %s/%s ssize: %u format: %s (%u bytes)\n",
debugstr_guid(&type->majortype), debugstr_guid(&type->subtype),
type->lSampleSize,
debugstr_guid(&type->formattype), type->cbFormat);
CoTaskMemFree(This->mtype.pbFormat);
This->mtype = *type;
This->mtype.pUnk = NULL;
if (type->cbFormat) {
This->mtype.pbFormat = CoTaskMemAlloc(type->cbFormat);
CopyMemory(This->mtype.pbFormat, type->pbFormat, type->cbFormat);
}
else
This->mtype.pbFormat = NULL;
return S_OK;
}
/* ISampleGrabber */
static HRESULT WINAPI
SampleGrabber_ISampleGrabber_GetConnectedMediaType(ISampleGrabber *iface, AM_MEDIA_TYPE *type)
{
SG_Impl *This = impl_from_ISampleGrabber(iface);
TRACE("(%p)->(%p)\n", This, type);
if (!type)
return E_POINTER;
if (!This->pin_in.pair)
return VFW_E_NOT_CONNECTED;
*type = This->mtype;
if (type->cbFormat) {
type->pbFormat = CoTaskMemAlloc(type->cbFormat);
CopyMemory(type->pbFormat, This->mtype.pbFormat, type->cbFormat);
}
return S_OK;
}
/* ISampleGrabber */
static HRESULT WINAPI
SampleGrabber_ISampleGrabber_SetBufferSamples(ISampleGrabber *iface, BOOL bufferEm)
{
SG_Impl *This = impl_from_ISampleGrabber(iface);
TRACE("(%p)->(%u)\n", This, bufferEm);
EnterCriticalSection(&This->filter.csFilter);
if (bufferEm) {
if (This->bufferLen < 0)
This->bufferLen = 0;
}
else
This->bufferLen = -1;
LeaveCriticalSection(&This->filter.csFilter);
return S_OK;
}
/* ISampleGrabber */
static HRESULT WINAPI
SampleGrabber_ISampleGrabber_GetCurrentBuffer(ISampleGrabber *iface, LONG *bufSize, LONG *buffer)
{
SG_Impl *This = impl_from_ISampleGrabber(iface);
HRESULT ret = S_OK;
TRACE("(%p)->(%p, %p)\n", This, bufSize, buffer);
if (!bufSize)
return E_POINTER;
EnterCriticalSection(&This->filter.csFilter);
if (!This->pin_in.pair)
ret = VFW_E_NOT_CONNECTED;
else if (This->bufferLen < 0)
ret = E_INVALIDARG;
else if (This->bufferLen == 0)
ret = VFW_E_WRONG_STATE;
else {
if (buffer) {
if (*bufSize >= This->bufferLen)
CopyMemory(buffer, This->bufferData, This->bufferLen);
else
ret = E_OUTOFMEMORY;
}
*bufSize = This->bufferLen;
}
LeaveCriticalSection(&This->filter.csFilter);
return ret;
}
/* ISampleGrabber */
static HRESULT WINAPI
SampleGrabber_ISampleGrabber_GetCurrentSample(ISampleGrabber *iface, IMediaSample **sample)
{
/* MS doesn't implement it either, no one should call it */
WARN("(%p): not implemented\n", sample);
return E_NOTIMPL;
}
/* ISampleGrabber */
static HRESULT WINAPI
SampleGrabber_ISampleGrabber_SetCallback(ISampleGrabber *iface, ISampleGrabberCB *cb, LONG whichMethod)
{
SG_Impl *This = impl_from_ISampleGrabber(iface);
TRACE("(%p)->(%p, %u)\n", This, cb, whichMethod);
if (This->grabberIface)
ISampleGrabberCB_Release(This->grabberIface);
This->grabberIface = cb;
This->grabberMethod = whichMethod;
if (cb)
ISampleGrabberCB_AddRef(cb);
return S_OK;
}
static HRESULT WINAPI SampleGrabber_IMemInputPin_QueryInterface(IMemInputPin *iface, REFIID iid, void **out)
{
SG_Impl *filter = impl_from_IMemInputPin(iface);
return IPin_QueryInterface(&filter->pin_in.IPin_iface, iid, out);
}
static ULONG WINAPI SampleGrabber_IMemInputPin_AddRef(IMemInputPin *iface)
{
SG_Impl *filter = impl_from_IMemInputPin(iface);
return IPin_AddRef(&filter->pin_in.IPin_iface);
}
static ULONG WINAPI SampleGrabber_IMemInputPin_Release(IMemInputPin *iface)
{
SG_Impl *filter = impl_from_IMemInputPin(iface);
return IPin_Release(&filter->pin_in.IPin_iface);
}
/* IMemInputPin */
static HRESULT WINAPI
SampleGrabber_IMemInputPin_GetAllocator(IMemInputPin *iface, IMemAllocator **allocator)
{
SG_Impl *This = impl_from_IMemInputPin(iface);
TRACE("(%p)->(%p) allocator = %p\n", This, allocator, This->allocator);
if (!allocator)
return E_POINTER;
*allocator = This->allocator;
if (!*allocator)
return VFW_E_NO_ALLOCATOR;
IMemAllocator_AddRef(*allocator);
return S_OK;
}
/* IMemInputPin */
static HRESULT WINAPI
SampleGrabber_IMemInputPin_NotifyAllocator(IMemInputPin *iface, IMemAllocator *allocator, BOOL readOnly)
{
SG_Impl *This = impl_from_IMemInputPin(iface);
TRACE("(%p)->(%p, %u) allocator = %p\n", This, allocator, readOnly, This->allocator);
if (This->allocator == allocator)
return S_OK;
if (This->allocator)
IMemAllocator_Release(This->allocator);
This->allocator = allocator;
if (allocator)
IMemAllocator_AddRef(allocator);
return S_OK;
}
/* IMemInputPin */
static HRESULT WINAPI
SampleGrabber_IMemInputPin_GetAllocatorRequirements(IMemInputPin *iface, ALLOCATOR_PROPERTIES *props)
{
SG_Impl *This = impl_from_IMemInputPin(iface);
FIXME("(%p)->(%p): semi-stub\n", This, props);
if (!props)
return E_POINTER;
return This->memOutput ? IMemInputPin_GetAllocatorRequirements(This->memOutput, props) : E_NOTIMPL;
}
/* IMemInputPin */
static HRESULT WINAPI
SampleGrabber_IMemInputPin_Receive(IMemInputPin *iface, IMediaSample *sample)
{
SG_Impl *This = impl_from_IMemInputPin(iface);
HRESULT hr;
TRACE("(%p)->(%p) output = %p, grabber = %p\n", This, sample, This->memOutput, This->grabberIface);
if (!sample)
return E_POINTER;
if (This->oneShot == OneShot_Past)
return S_FALSE;
SampleGrabber_callback(This, sample);
hr = This->memOutput ? IMemInputPin_Receive(This->memOutput, sample) : S_OK;
if (This->oneShot == OneShot_Wait) {
This->oneShot = OneShot_Past;
hr = S_FALSE;
if (This->pin_out.pair)
IPin_EndOfStream(This->pin_out.pair);
}
return hr;
}
/* IMemInputPin */
static HRESULT WINAPI
SampleGrabber_IMemInputPin_ReceiveMultiple(IMemInputPin *iface, IMediaSample **samples, LONG nSamples, LONG *nProcessed)
{
SG_Impl *This = impl_from_IMemInputPin(iface);
LONG idx;
TRACE("(%p)->(%p, %u, %p) output = %p, grabber = %p\n", This, samples, nSamples, nProcessed, This->memOutput, This->grabberIface);
if (!samples || !nProcessed)
return E_POINTER;
if ((This->filter.state != State_Running) || (This->oneShot == OneShot_Past))
return S_FALSE;
for (idx = 0; idx < nSamples; idx++)
SampleGrabber_callback(This, samples[idx]);
return This->memOutput ? IMemInputPin_ReceiveMultiple(This->memOutput, samples, nSamples, nProcessed) : S_OK;
}
/* IMemInputPin */
static HRESULT WINAPI
SampleGrabber_IMemInputPin_ReceiveCanBlock(IMemInputPin *iface)
{
SG_Impl *This = impl_from_IMemInputPin(iface);
TRACE("(%p)\n", This);
return This->memOutput ? IMemInputPin_ReceiveCanBlock(This->memOutput) : S_OK;
}
static HRESULT WINAPI sample_grabber_sink_QueryInterface(IPin *iface, REFIID iid, void **out)
{
SG_Pin *pin = impl_from_IPin(iface);
TRACE("iface %p, iid %s, out %p.\n", iface, debugstr_guid(iid), out);
if (IsEqualGUID(iid, &IID_IUnknown) || IsEqualGUID(iid, &IID_IPin))
{
*out = iface;
}
else if (IsEqualGUID(iid, &IID_IMemInputPin))
{
*out = &pin->sg->IMemInputPin_iface;
}
else
{
WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(iid));
*out = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown *)*out);
return S_OK;
}
/* IUnknown */
static ULONG WINAPI
SampleGrabber_IPin_AddRef(IPin *iface)
{
SG_Pin *This = impl_from_IPin(iface);
return ISampleGrabber_AddRef(&This->sg->ISampleGrabber_iface);
}
/* IUnknown */
static ULONG WINAPI
SampleGrabber_IPin_Release(IPin *iface)
{
SG_Pin *This = impl_from_IPin(iface);
return ISampleGrabber_Release(&This->sg->ISampleGrabber_iface);
}
/* IPin - input pin */
static HRESULT WINAPI
SampleGrabber_In_IPin_Connect(IPin *iface, IPin *receiver, const AM_MEDIA_TYPE *mtype)
{
WARN("(%p, %p): unexpected\n", receiver, mtype);
return E_UNEXPECTED;
}
/* IPin - output pin */
static HRESULT WINAPI
SampleGrabber_Out_IPin_Connect(IPin *iface, IPin *receiver, const AM_MEDIA_TYPE *type)
{
SG_Pin *This = impl_from_IPin(iface);
HRESULT hr;
TRACE("(%p)->(%p, %p)\n", This, receiver, type);
if (!receiver)
return E_POINTER;
if (This->pair)
return VFW_E_ALREADY_CONNECTED;
if (This->sg->filter.state != State_Stopped)
return VFW_E_NOT_STOPPED;
if (type) {
TRACE("Media type: %s/%s ssize: %u format: %s (%u bytes)\n",
debugstr_guid(&type->majortype), debugstr_guid(&type->subtype),
type->lSampleSize,
debugstr_guid(&type->formattype), type->cbFormat);
if (!IsEqualGUID(&This->sg->mtype.majortype,&GUID_NULL) &&
!IsEqualGUID(&This->sg->mtype.majortype,&type->majortype))
return VFW_E_TYPE_NOT_ACCEPTED;
if (!IsEqualGUID(&This->sg->mtype.subtype,&MEDIASUBTYPE_None) &&
!IsEqualGUID(&This->sg->mtype.subtype,&type->subtype))
return VFW_E_TYPE_NOT_ACCEPTED;
if (!IsEqualGUID(&This->sg->mtype.formattype,&GUID_NULL) &&
!IsEqualGUID(&This->sg->mtype.formattype,&FORMAT_None) &&
!IsEqualGUID(&This->sg->mtype.formattype,&type->formattype))
return VFW_E_TYPE_NOT_ACCEPTED;
}
else
type = &This->sg->mtype;
if (!IsEqualGUID(&type->formattype, &FORMAT_None) &&
!IsEqualGUID(&type->formattype, &GUID_NULL) &&
!type->pbFormat)
return VFW_E_TYPE_NOT_ACCEPTED;
hr = IPin_ReceiveConnection(receiver, &This->IPin_iface, type);
if (FAILED(hr))
return hr;
This->pair = receiver;
if (This->sg->memOutput) {
IMemInputPin_Release(This->sg->memOutput);
This->sg->memOutput = NULL;
}
IPin_QueryInterface(receiver,&IID_IMemInputPin,(void **)&(This->sg->memOutput));
TRACE("(%p) Accepted IPin %p, IMemInputPin %p\n", This, receiver, This->sg->memOutput);
return S_OK;
}
/* IPin - input pin */
static HRESULT WINAPI
SampleGrabber_In_IPin_ReceiveConnection(IPin *iface, IPin *connector, const AM_MEDIA_TYPE *type)
{
SG_Pin *This = impl_from_IPin(iface);
TRACE("(%p)->(%p, %p)\n", This, connector, type);
if (!connector)
return E_POINTER;
if (This->pair)
return VFW_E_ALREADY_CONNECTED;
if (This->sg->filter.state != State_Stopped)
return VFW_E_NOT_STOPPED;
if (type) {
TRACE("Media type: %s/%s ssize: %u format: %s (%u bytes)\n",
debugstr_guid(&type->majortype), debugstr_guid(&type->subtype),
type->lSampleSize,
debugstr_guid(&type->formattype), type->cbFormat);
if (!IsEqualGUID(&type->formattype, &FORMAT_None) &&
!IsEqualGUID(&type->formattype, &GUID_NULL) &&
!type->pbFormat)
return VFW_E_INVALIDMEDIATYPE;
if (!IsEqualGUID(&This->sg->mtype.majortype,&GUID_NULL) &&
!IsEqualGUID(&This->sg->mtype.majortype,&type->majortype))
return VFW_E_TYPE_NOT_ACCEPTED;
if (!IsEqualGUID(&This->sg->mtype.subtype,&MEDIASUBTYPE_None) &&
!IsEqualGUID(&This->sg->mtype.subtype,&type->subtype))
return VFW_E_TYPE_NOT_ACCEPTED;
if (!IsEqualGUID(&This->sg->mtype.formattype,&GUID_NULL) &&
!IsEqualGUID(&This->sg->mtype.formattype,&FORMAT_None) &&
!IsEqualGUID(&This->sg->mtype.formattype,&type->formattype))
return VFW_E_TYPE_NOT_ACCEPTED;
CoTaskMemFree(This->sg->mtype.pbFormat);
This->sg->mtype = *type;
This->sg->mtype.pUnk = NULL;
if (type->cbFormat) {
This->sg->mtype.pbFormat = CoTaskMemAlloc(type->cbFormat);
CopyMemory(This->sg->mtype.pbFormat, type->pbFormat, type->cbFormat);
}
else
This->sg->mtype.pbFormat = NULL;
}
This->pair = connector;
TRACE("(%p) Accepted IPin %p\n", This, connector);
return S_OK;
}
/* IPin - output pin */
static HRESULT WINAPI
SampleGrabber_Out_IPin_ReceiveConnection(IPin *iface, IPin *connector, const AM_MEDIA_TYPE *mtype)
{
WARN("(%p, %p): unexpected\n", connector, mtype);
return E_UNEXPECTED;
}
/* IPin - input pin */
static HRESULT WINAPI
SampleGrabber_In_IPin_Disconnect(IPin *iface)
{
SG_Pin *This = impl_from_IPin(iface);
TRACE("(%p)->() pair = %p\n", This, This->pair);
if (This->sg->filter.state != State_Stopped)
return VFW_E_NOT_STOPPED;
if (This->pair) {
This->pair = NULL;
return S_OK;
}
return S_FALSE;
}
/* IPin - output pin */
static HRESULT WINAPI
SampleGrabber_Out_IPin_Disconnect(IPin *iface)
{
SG_Pin *This = impl_from_IPin(iface);
TRACE("(%p)->() pair = %p\n", This, This->pair);
if (This->sg->filter.state != State_Stopped)
return VFW_E_NOT_STOPPED;
if (This->pair) {
This->pair = NULL;
if (This->sg->memOutput) {
IMemInputPin_Release(This->sg->memOutput);
This->sg->memOutput = NULL;
}
return S_OK;
}
return S_FALSE;
}
/* IPin */
static HRESULT WINAPI
SampleGrabber_IPin_ConnectedTo(IPin *iface, IPin **pin)
{
SG_Pin *This = impl_from_IPin(iface);
TRACE("(%p)->(%p) pair = %p\n", This, pin, This->pair);
if (!pin)
return E_POINTER;
*pin = This->pair;
if (*pin) {
IPin_AddRef(*pin);
return S_OK;
}
return VFW_E_NOT_CONNECTED;
}
/* IPin */
static HRESULT WINAPI
SampleGrabber_IPin_ConnectionMediaType(IPin *iface, AM_MEDIA_TYPE *mtype)
{
SG_Pin *This = impl_from_IPin(iface);
TRACE("(%p)->(%p)\n", This, mtype);
if (!mtype)
return E_POINTER;
if (!This->pair)
return VFW_E_NOT_CONNECTED;
*mtype = This->sg->mtype;
if (mtype->cbFormat) {
mtype->pbFormat = CoTaskMemAlloc(mtype->cbFormat);
CopyMemory(mtype->pbFormat, This->sg->mtype.pbFormat, mtype->cbFormat);
}
return S_OK;
}
/* IPin */
static HRESULT WINAPI
SampleGrabber_IPin_QueryPinInfo(IPin *iface, PIN_INFO *info)
{
SG_Pin *This = impl_from_IPin(iface);
TRACE("(%p)->(%p)\n", This, info);
if (!info)
return E_POINTER;
info->pFilter = &This->sg->filter.IBaseFilter_iface;
IBaseFilter_AddRef(info->pFilter);
info->dir = This->dir;
lstrcpynW(info->achName,This->name,MAX_PIN_NAME);
return S_OK;
}
/* IPin */
static HRESULT WINAPI
SampleGrabber_IPin_QueryDirection(IPin *iface, PIN_DIRECTION *dir)
{
SG_Pin *This = impl_from_IPin(iface);
TRACE("(%p)->(%p)\n", This, dir);
if (!dir)
return E_POINTER;
*dir = This->dir;
return S_OK;
}
/* IPin */
static HRESULT WINAPI
SampleGrabber_IPin_QueryId(IPin *iface, LPWSTR *id)
{
SG_Pin *This = impl_from_IPin(iface);
int len;
TRACE("(%p)->(%p)\n", This, id);
if (!id)
return E_POINTER;
len = sizeof(WCHAR)*(1+lstrlenW(This->name));
*id = CoTaskMemAlloc(len);
CopyMemory(*id, This->name, len);
return S_OK;
}
/* IPin */
static HRESULT WINAPI
SampleGrabber_IPin_QueryAccept(IPin *iface, const AM_MEDIA_TYPE *mtype)
{
TRACE("(%p)\n", mtype);
return S_OK;
}
/* IPin */
static HRESULT WINAPI
SampleGrabber_IPin_EnumMediaTypes(IPin *iface, IEnumMediaTypes **mtypes)
{
SG_Pin *This = impl_from_IPin(iface);
TRACE("(%p)->(%p)\n", This, mtypes);
if (!mtypes)
return E_POINTER;
*mtypes = mediaenum_create(This->sg->pin_in.pair ? &This->sg->mtype : NULL, FALSE);
return *mtypes ? S_OK : E_OUTOFMEMORY;
}
/* IPin - input pin */
static HRESULT WINAPI
SampleGrabber_In_IPin_QueryInternalConnections(IPin *iface, IPin **pins, ULONG *nPins)
{
SG_Pin *This = impl_from_IPin(iface);
TRACE("(%p)->(%p, %p) size = %u\n", This, pins, nPins, (nPins ? *nPins : 0));
if (!nPins)
return E_POINTER;
if (*nPins) {
if (!pins)
return E_POINTER;
IPin_AddRef(&This->sg->pin_out.IPin_iface);
*pins = &This->sg->pin_out.IPin_iface;
*nPins = 1;
return S_OK;
}
*nPins = 1;
return S_FALSE;
}
/* IPin - output pin */
static HRESULT WINAPI
SampleGrabber_Out_IPin_QueryInternalConnections(IPin *iface, IPin **pins, ULONG *nPins)
{
WARN("(%p, %p): unexpected\n", pins, nPins);
if (nPins)
*nPins = 0;
return E_NOTIMPL;
}
/* IPin */
static HRESULT WINAPI
SampleGrabber_IPin_EndOfStream(IPin *iface)
{
FIXME(": stub\n");
return S_OK;
}
/* IPin */
static HRESULT WINAPI
SampleGrabber_IPin_BeginFlush(IPin *iface)
{
FIXME(": stub\n");
return S_OK;
}
/* IPin */
static HRESULT WINAPI
SampleGrabber_IPin_EndFlush(IPin *iface)
{
FIXME(": stub\n");
return S_OK;
}
/* IPin */
static HRESULT WINAPI
SampleGrabber_IPin_NewSegment(IPin *iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double rate)
{
FIXME(": stub\n");
return S_OK;
}
/* SampleGrabber vtables and constructor */
static const IBaseFilterVtbl IBaseFilter_VTable =
{
BaseFilterImpl_QueryInterface,
BaseFilterImpl_AddRef,
BaseFilterImpl_Release,
BaseFilterImpl_GetClassID,
SampleGrabber_IBaseFilter_Stop,
SampleGrabber_IBaseFilter_Pause,
SampleGrabber_IBaseFilter_Run,
BaseFilterImpl_GetState,
BaseFilterImpl_SetSyncSource,
BaseFilterImpl_GetSyncSource,
BaseFilterImpl_EnumPins,
BaseFilterImpl_FindPin,
BaseFilterImpl_QueryFilterInfo,
SampleGrabber_IBaseFilter_JoinFilterGraph,
BaseFilterImpl_QueryVendorInfo,
};
static const ISampleGrabberVtbl ISampleGrabber_VTable =
{
SampleGrabber_ISampleGrabber_QueryInterface,
SampleGrabber_ISampleGrabber_AddRef,
SampleGrabber_ISampleGrabber_Release,
SampleGrabber_ISampleGrabber_SetOneShot,
SampleGrabber_ISampleGrabber_SetMediaType,
SampleGrabber_ISampleGrabber_GetConnectedMediaType,
SampleGrabber_ISampleGrabber_SetBufferSamples,
SampleGrabber_ISampleGrabber_GetCurrentBuffer,
SampleGrabber_ISampleGrabber_GetCurrentSample,
SampleGrabber_ISampleGrabber_SetCallback,
};
static const IMemInputPinVtbl IMemInputPin_VTable =
{
SampleGrabber_IMemInputPin_QueryInterface,
SampleGrabber_IMemInputPin_AddRef,
SampleGrabber_IMemInputPin_Release,
SampleGrabber_IMemInputPin_GetAllocator,
SampleGrabber_IMemInputPin_NotifyAllocator,
SampleGrabber_IMemInputPin_GetAllocatorRequirements,
SampleGrabber_IMemInputPin_Receive,
SampleGrabber_IMemInputPin_ReceiveMultiple,
SampleGrabber_IMemInputPin_ReceiveCanBlock,
};
static const IPinVtbl IPin_In_VTable =
{
sample_grabber_sink_QueryInterface,
SampleGrabber_IPin_AddRef,
SampleGrabber_IPin_Release,
SampleGrabber_In_IPin_Connect,
SampleGrabber_In_IPin_ReceiveConnection,
SampleGrabber_In_IPin_Disconnect,
SampleGrabber_IPin_ConnectedTo,
SampleGrabber_IPin_ConnectionMediaType,
SampleGrabber_IPin_QueryPinInfo,
SampleGrabber_IPin_QueryDirection,
SampleGrabber_IPin_QueryId,
SampleGrabber_IPin_QueryAccept,
SampleGrabber_IPin_EnumMediaTypes,
SampleGrabber_In_IPin_QueryInternalConnections,
SampleGrabber_IPin_EndOfStream,
SampleGrabber_IPin_BeginFlush,
SampleGrabber_IPin_EndFlush,
SampleGrabber_IPin_NewSegment,
};
static HRESULT WINAPI sample_grabber_source_QueryInterface(IPin *iface, REFIID iid, void **out)
{
SG_Pin *pin = impl_from_IPin(iface);
TRACE("iface %p, iid %s, out %p.\n", iface, debugstr_guid(iid), out);
if (IsEqualGUID(iid, &IID_IUnknown) || IsEqualGUID(iid, &IID_IPin))
{
*out = iface;
}
else if (IsEqualGUID(iid, &IID_IMediaPosition) || IsEqualGUID(iid, &IID_IMediaSeeking))
{
return IUnknown_QueryInterface(pin->sg->seekthru_unk, iid, out);
}
else
{
WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(iid));
*out = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown *)*out);
return S_OK;
}
static const IPinVtbl IPin_Out_VTable =
{
sample_grabber_source_QueryInterface,
SampleGrabber_IPin_AddRef,
SampleGrabber_IPin_Release,
SampleGrabber_Out_IPin_Connect,
SampleGrabber_Out_IPin_ReceiveConnection,
SampleGrabber_Out_IPin_Disconnect,
SampleGrabber_IPin_ConnectedTo,
SampleGrabber_IPin_ConnectionMediaType,
SampleGrabber_IPin_QueryPinInfo,
SampleGrabber_IPin_QueryDirection,
SampleGrabber_IPin_QueryId,
SampleGrabber_IPin_QueryAccept,
SampleGrabber_IPin_EnumMediaTypes,
SampleGrabber_Out_IPin_QueryInternalConnections,
SampleGrabber_IPin_EndOfStream,
SampleGrabber_IPin_BeginFlush,
SampleGrabber_IPin_EndFlush,
SampleGrabber_IPin_NewSegment,
};
HRESULT SampleGrabber_create(IUnknown *outer, void **out)
{
SG_Impl* obj = NULL;
ISeekingPassThru *passthru;
HRESULT hr;
obj = CoTaskMemAlloc(sizeof(SG_Impl));
if (NULL == obj) {
*out = NULL;
return E_OUTOFMEMORY;
}
ZeroMemory(obj, sizeof(SG_Impl));
strmbase_filter_init(&obj->filter, &IBaseFilter_VTable, outer, &CLSID_SampleGrabber, &filter_ops);
obj->ISampleGrabber_iface.lpVtbl = &ISampleGrabber_VTable;
obj->IMemInputPin_iface.lpVtbl = &IMemInputPin_VTable;
obj->pin_in.IPin_iface.lpVtbl = &IPin_In_VTable;
obj->pin_in.dir = PINDIR_INPUT;
obj->pin_in.name = pin_in_name;
obj->pin_in.sg = obj;
obj->pin_in.pair = NULL;
obj->pin_out.IPin_iface.lpVtbl = &IPin_Out_VTable;
obj->pin_out.dir = PINDIR_OUTPUT;
obj->pin_out.name = pin_out_name;
obj->pin_out.sg = obj;
obj->pin_out.pair = NULL;
obj->mtype.majortype = GUID_NULL;
obj->mtype.subtype = MEDIASUBTYPE_None;
obj->mtype.formattype = FORMAT_None;
obj->allocator = NULL;
obj->memOutput = NULL;
obj->grabberIface = NULL;
obj->grabberMethod = -1;
obj->oneShot = OneShot_None;
obj->bufferLen = -1;
obj->bufferData = NULL;
hr = CoCreateInstance(&CLSID_SeekingPassThru, &obj->filter.IUnknown_inner,
CLSCTX_INPROC_SERVER, &IID_IUnknown, (void **)&obj->seekthru_unk);
if(hr)
return hr;
IUnknown_QueryInterface(obj->seekthru_unk, &IID_ISeekingPassThru, (void**)&passthru);
ISeekingPassThru_Init(passthru, FALSE, &obj->pin_in.IPin_iface);
ISeekingPassThru_Release(passthru);
*out = &obj->filter.IUnknown_inner;
return S_OK;
}
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