#include <assert.h>
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "ole2.h"
#include "qedit_private.h"
#include "wine/debug.h"

Include dependency graph for samplegrabber.c:

Go to the source code of this file.

Classes
struct	sample_grabber

Macros
#define	COBJMACROS

Enumerations
enum	{ OneShot_None , OneShot_Wait , OneShot_Past }

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (quartz)

static struct sample_grabber *	impl_from_strmbase_filter (struct strmbase_filter *iface)

static struct sample_grabber *	impl_from_ISampleGrabber (ISampleGrabber *iface)

static struct sample_grabber *	impl_from_IMemInputPin (IMemInputPin *iface)

static void	SampleGrabber_cleanup (struct sample_grabber *This)

static struct strmbase_pin *	sample_grabber_get_pin (struct strmbase_filter *iface, unsigned int index)

static void	sample_grabber_destroy (struct strmbase_filter *iface)

static HRESULT	sample_grabber_query_interface (struct strmbase_filter iface, REFIID iid, void *out)

static void	SampleGrabber_callback (struct sample_grabber This, IMediaSample sample)

static HRESULT WINAPI	SampleGrabber_ISampleGrabber_QueryInterface (ISampleGrabber iface, REFIID riid, void *ppv)

static ULONG WINAPI	SampleGrabber_ISampleGrabber_AddRef (ISampleGrabber *iface)

static ULONG WINAPI	SampleGrabber_ISampleGrabber_Release (ISampleGrabber *iface)

static HRESULT WINAPI	SampleGrabber_ISampleGrabber_SetOneShot (ISampleGrabber *iface, BOOL oneShot)

static HRESULT WINAPI	SampleGrabber_ISampleGrabber_SetMediaType (ISampleGrabber iface, const AM_MEDIA_TYPE mt)

static HRESULT WINAPI	SampleGrabber_ISampleGrabber_GetConnectedMediaType (ISampleGrabber iface, AM_MEDIA_TYPE mt)

static HRESULT WINAPI	SampleGrabber_ISampleGrabber_SetBufferSamples (ISampleGrabber *iface, BOOL bufferEm)

static HRESULT WINAPI	SampleGrabber_ISampleGrabber_GetCurrentBuffer (ISampleGrabber iface, LONG bufSize, LONG *buffer)

static HRESULT WINAPI	SampleGrabber_ISampleGrabber_GetCurrentSample (ISampleGrabber iface, IMediaSample *sample)

static HRESULT WINAPI	SampleGrabber_ISampleGrabber_SetCallback (ISampleGrabber iface, ISampleGrabberCB cb, LONG whichMethod)

static HRESULT WINAPI	SampleGrabber_IMemInputPin_QueryInterface (IMemInputPin iface, REFIID iid, void *out)

static ULONG WINAPI	SampleGrabber_IMemInputPin_AddRef (IMemInputPin *iface)

static ULONG WINAPI	SampleGrabber_IMemInputPin_Release (IMemInputPin *iface)

static HRESULT WINAPI	SampleGrabber_IMemInputPin_GetAllocator (IMemInputPin iface, IMemAllocator *allocator)

static HRESULT WINAPI	SampleGrabber_IMemInputPin_NotifyAllocator (IMemInputPin iface, IMemAllocator allocator, BOOL readOnly)

static HRESULT WINAPI	SampleGrabber_IMemInputPin_GetAllocatorRequirements (IMemInputPin iface, ALLOCATOR_PROPERTIES props)

static HRESULT WINAPI	SampleGrabber_IMemInputPin_Receive (IMemInputPin iface, IMediaSample sample)

static HRESULT WINAPI	SampleGrabber_IMemInputPin_ReceiveMultiple (IMemInputPin iface, IMediaSample samples, LONG nSamples, LONG nProcessed)

static HRESULT WINAPI	SampleGrabber_IMemInputPin_ReceiveCanBlock (IMemInputPin *iface)

static struct sample_grabber *	impl_from_sink_pin (struct strmbase_pin *iface)

static HRESULT	sample_grabber_sink_query_interface (struct strmbase_pin iface, REFIID iid, void *out)

static BOOL	check_filter_mt (struct sample_grabber filter, const AM_MEDIA_TYPE mt)

static HRESULT	sample_grabber_sink_query_accept (struct strmbase_pin iface, const AM_MEDIA_TYPE mt)

static HRESULT	sample_grabber_sink_get_media_type (struct strmbase_pin iface, unsigned int index, AM_MEDIA_TYPE mt)

static struct sample_grabber *	impl_from_source_pin (struct strmbase_pin *iface)

static HRESULT	sample_grabber_source_query_interface (struct strmbase_pin iface, REFIID iid, void *out)

static HRESULT	sample_grabber_source_query_accept (struct strmbase_pin iface, const AM_MEDIA_TYPE mt)

static HRESULT	sample_grabber_source_get_media_type (struct strmbase_pin iface, unsigned int index, AM_MEDIA_TYPE mt)

static BOOL	compare_media_types (const AM_MEDIA_TYPE a, const AM_MEDIA_TYPE b)

static HRESULT WINAPI	sample_grabber_source_DecideAllocator (struct strmbase_source iface, IMemInputPin peer, IMemAllocator **allocator)

HRESULT	sample_grabber_create (IUnknown outer, IUnknown *out)

Variables
static const struct strmbase_filter_ops	filter_ops

static const ISampleGrabberVtbl	ISampleGrabber_VTable

static const IMemInputPinVtbl	IMemInputPin_VTable

static const struct strmbase_sink_ops	sink_ops

static const struct strmbase_source_ops	source_ops

Macro Definition Documentation

◆ COBJMACROS

#define COBJMACROS

Definition at line 23 of file samplegrabber.c.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Enumerator
OneShot_None
OneShot_Wait
OneShot_Past

Definition at line 55 of file samplegrabber.c.

     {
    OneShot_None,
    OneShot_Wait,
    OneShot_Past,
};

Function Documentation

◆ check_filter_mt()

static BOOL check_filter_mt	(	struct sample_grabber *	filter,
		const AM_MEDIA_TYPE *	mt
	)

static

Definition at line 481 of file samplegrabber.c.

{
    if (IsEqualGUID(&filter->filter_mt.majortype, &GUID_NULL))
        return TRUE;
    if (!IsEqualGUID(&filter->filter_mt.majortype, &mt->majortype))
        return FALSE;
 
    if (IsEqualGUID(&filter->filter_mt.subtype, &GUID_NULL))
        return TRUE;
    if (!IsEqualGUID(&filter->filter_mt.subtype, &mt->subtype))
        return FALSE;
 
    if (IsEqualGUID(&filter->filter_mt.formattype, &GUID_NULL))
        return TRUE;
    if (!IsEqualGUID(&filter->filter_mt.formattype, &mt->formattype))
        return FALSE;
 
    return TRUE;
}

Referenced by sample_grabber_sink_query_accept(), and sample_grabber_source_query_accept().

◆ compare_media_types()

static BOOL compare_media_types	(	const AM_MEDIA_TYPE *	a,
		const AM_MEDIA_TYPE *	b
	)

inlinestatic

Definition at line 599 of file samplegrabber.c.

{
    return !memcmp(a, b, offsetof(AM_MEDIA_TYPE, pbFormat))
            && !memcmp(a->pbFormat, b->pbFormat, a->cbFormat);
}

Referenced by sample_grabber_source_DecideAllocator(), and test_connect_pin().

◆ impl_from_IMemInputPin()

static struct sample_grabber * impl_from_IMemInputPin ( IMemInputPin * iface )

static

Definition at line 71 of file samplegrabber.c.

{
    return CONTAINING_RECORD(iface, struct sample_grabber, IMemInputPin_iface);
}

Referenced by SampleGrabber_IMemInputPin_AddRef(), SampleGrabber_IMemInputPin_GetAllocator(), SampleGrabber_IMemInputPin_GetAllocatorRequirements(), SampleGrabber_IMemInputPin_NotifyAllocator(), SampleGrabber_IMemInputPin_QueryInterface(), SampleGrabber_IMemInputPin_Receive(), SampleGrabber_IMemInputPin_ReceiveCanBlock(), SampleGrabber_IMemInputPin_ReceiveMultiple(), and SampleGrabber_IMemInputPin_Release().

◆ impl_from_ISampleGrabber()

static struct sample_grabber * impl_from_ISampleGrabber ( ISampleGrabber * iface )

static

Definition at line 66 of file samplegrabber.c.

{
    return CONTAINING_RECORD(iface, struct sample_grabber, ISampleGrabber_iface);
}

Referenced by SampleGrabber_ISampleGrabber_AddRef(), SampleGrabber_ISampleGrabber_GetConnectedMediaType(), SampleGrabber_ISampleGrabber_GetCurrentBuffer(), SampleGrabber_ISampleGrabber_QueryInterface(), SampleGrabber_ISampleGrabber_Release(), SampleGrabber_ISampleGrabber_SetBufferSamples(), SampleGrabber_ISampleGrabber_SetCallback(), SampleGrabber_ISampleGrabber_SetMediaType(), and SampleGrabber_ISampleGrabber_SetOneShot().

◆ impl_from_sink_pin()

static struct sample_grabber * impl_from_sink_pin ( struct strmbase_pin * iface )

static

Definition at line 463 of file samplegrabber.c.

{
    return CONTAINING_RECORD(iface, struct sample_grabber, sink.pin);
}

Referenced by sample_grabber_sink_get_media_type(), sample_grabber_sink_query_accept(), and sample_grabber_sink_query_interface().

◆ impl_from_source_pin()

static struct sample_grabber * impl_from_source_pin ( struct strmbase_pin * iface )

static

Definition at line 542 of file samplegrabber.c.

{
    return CONTAINING_RECORD(iface, struct sample_grabber, source.pin);
}

Referenced by sample_grabber_source_DecideAllocator(), sample_grabber_source_get_media_type(), sample_grabber_source_query_accept(), and sample_grabber_source_query_interface().

◆ impl_from_strmbase_filter()

static struct sample_grabber * impl_from_strmbase_filter ( struct strmbase_filter * iface )

static

Definition at line 61 of file samplegrabber.c.

{
    return CONTAINING_RECORD(iface, struct sample_grabber, filter);
}

Referenced by sample_grabber_destroy(), sample_grabber_get_pin(), sample_grabber_query_interface(), testfilter_destroy(), testfilter_get_pin(), testsink_begin_flush(), testsink_connect(), testsink_end_flush(), testsink_eos(), testsink_get_media_type(), testsink_new_segment(), testsink_query_interface(), testsink_Receive(), and testsource_get_media_type().

◆ sample_grabber_create()

HRESULT sample_grabber_create	(	IUnknown *	outer,
		IUnknown **	out
	)

Definition at line 640 of file samplegrabber.c.

{
    struct sample_grabber *object;
 
    if (!(object = calloc(1, sizeof(*object))))
        return E_OUTOFMEMORY;
 
    strmbase_filter_init(&object->filter, outer, &CLSID_SampleGrabber, &filter_ops);
    object->ISampleGrabber_iface.lpVtbl = &ISampleGrabber_VTable;
    object->IMemInputPin_iface.lpVtbl = &IMemInputPin_VTable;
 
    strmbase_sink_init(&object->sink, &object->filter, L"In", &sink_ops, NULL);
    wcscpy(object->sink.pin.name, L"Input");
 
    strmbase_source_init(&object->source, &object->filter, L"Out", &source_ops);
    wcscpy(object->source.pin.name, L"Output");
 
    strmbase_passthrough_init(&object->passthrough, (IUnknown *)&object->source.pin.IPin_iface);
    ISeekingPassThru_Init(&object->passthrough.ISeekingPassThru_iface, FALSE,
            &object->sink.pin.IPin_iface);
 
    object->grabberMethod = -1;
    object->oneShot = OneShot_None;
    object->bufferLen = -1;
 
    TRACE("Created sample grabber %p.\n", object);
    *out = &object->filter.IUnknown_inner;
    return S_OK;
}

◆ sample_grabber_destroy()

static void sample_grabber_destroy ( struct strmbase_filter * iface )

static

Definition at line 100 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_strmbase_filter(iface);
 
    SampleGrabber_cleanup(filter);
    strmbase_sink_cleanup(&filter->sink);
    strmbase_source_cleanup(&filter->source);
    strmbase_passthrough_cleanup(&filter->passthrough);
    strmbase_filter_cleanup(&filter->filter);
    free(filter);
}

◆ sample_grabber_get_pin()

static struct strmbase_pin * sample_grabber_get_pin	(	struct strmbase_filter *	iface,
		unsigned int	index
	)

static

Definition at line 89 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_strmbase_filter(iface);
 
    if (index == 0)
        return &filter->sink.pin;
    else if (index == 1)
        return &filter->source.pin;
    return NULL;
}

◆ sample_grabber_query_interface()

static HRESULT sample_grabber_query_interface	(	struct strmbase_filter *	iface,
		REFIID	iid,
		void **	out
	)

static

Definition at line 112 of file samplegrabber.c.

{
    struct sample_grabber *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;
}

◆ sample_grabber_sink_get_media_type()

static HRESULT sample_grabber_sink_get_media_type	(	struct strmbase_pin *	iface,
		unsigned int	index,
		AM_MEDIA_TYPE *	mt
	)

static

Definition at line 508 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_sink_pin(iface);
    IEnumMediaTypes *enummt;
    AM_MEDIA_TYPE *pmt;
    HRESULT hr;
 
    if (!filter->source.pin.peer)
        return VFW_E_NOT_CONNECTED;
 
    if (FAILED(hr = IPin_EnumMediaTypes(filter->source.pin.peer, &enummt)))
        return hr;
 
    if ((!index || IEnumMediaTypes_Skip(enummt, index) == S_OK)
            && IEnumMediaTypes_Next(enummt, 1, &pmt, NULL) == S_OK)
    {
        CopyMediaType(mt, pmt);
        DeleteMediaType(pmt);
        IEnumMediaTypes_Release(enummt);
        return S_OK;
    }
 
    IEnumMediaTypes_Release(enummt);
    return VFW_S_NO_MORE_ITEMS;
}

◆ sample_grabber_sink_query_accept()

static HRESULT sample_grabber_sink_query_accept	(	struct strmbase_pin *	iface,
		const AM_MEDIA_TYPE *	mt
	)

static

Definition at line 501 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_sink_pin(iface);
 
    return check_filter_mt(filter, mt) ? S_OK : S_FALSE;
}

◆ sample_grabber_sink_query_interface()

static HRESULT sample_grabber_sink_query_interface	(	struct strmbase_pin *	iface,
		REFIID	iid,
		void **	out
	)

static

Definition at line 468 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_sink_pin(iface);
 
    if (IsEqualGUID(iid, &IID_IMemInputPin))
        *out = &filter->IMemInputPin_iface;
    else
        return E_NOINTERFACE;
 
    IUnknown_AddRef((IUnknown *)*out);
    return S_OK;
}

◆ sample_grabber_source_DecideAllocator()

static HRESULT WINAPI sample_grabber_source_DecideAllocator	(	struct strmbase_source *	iface,
		IMemInputPin *	peer,
		IMemAllocator **	allocator
	)

static

Definition at line 605 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_source_pin(&iface->pin);
    const AM_MEDIA_TYPE *mt = &iface->pin.mt;
 
    if (!compare_media_types(mt, &filter->sink.pin.mt))
    {
        IFilterGraph2 *graph;
        HRESULT hr;
 
        if (FAILED(hr = IFilterGraph_QueryInterface(filter->filter.graph,
                &IID_IFilterGraph2, (void **)&graph)))
        {
            ERR("Failed to get IFilterGraph2 interface, hr %#lx.\n", hr);
            return hr;
        }
 
        hr = IFilterGraph2_ReconnectEx(graph, &filter->sink.pin.IPin_iface, mt);
        IFilterGraph2_Release(graph);
        return hr;
    }
 
    return S_OK;
}

◆ sample_grabber_source_get_media_type()

static HRESULT sample_grabber_source_get_media_type	(	struct strmbase_pin *	iface,
		unsigned int	index,
		AM_MEDIA_TYPE *	mt
	)

static

Definition at line 572 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_source_pin(iface);
    IEnumMediaTypes *enummt;
    AM_MEDIA_TYPE *pmt;
    HRESULT hr;
 
    if (!filter->sink.pin.peer)
        return VFW_E_NOT_CONNECTED;
 
    if (FAILED(hr = IPin_EnumMediaTypes(filter->sink.pin.peer, &enummt)))
        return hr;
 
    if ((!index || IEnumMediaTypes_Skip(enummt, index) == S_OK)
            && IEnumMediaTypes_Next(enummt, 1, &pmt, NULL) == S_OK)
    {
        CopyMediaType(mt, pmt);
        DeleteMediaType(pmt);
        IEnumMediaTypes_Release(enummt);
        return S_OK;
    }
 
    IEnumMediaTypes_Release(enummt);
    return VFW_S_NO_MORE_ITEMS;
}

◆ sample_grabber_source_query_accept()

static HRESULT sample_grabber_source_query_accept	(	struct strmbase_pin *	iface,
		const AM_MEDIA_TYPE *	mt
	)

static

Definition at line 562 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_source_pin(iface);
 
    if (filter->sink.pin.peer && IPin_QueryAccept(filter->sink.pin.peer, mt) != S_OK)
        return S_FALSE;
 
    return check_filter_mt(filter, mt) ? S_OK : S_FALSE;
}

◆ sample_grabber_source_query_interface()

static HRESULT sample_grabber_source_query_interface	(	struct strmbase_pin *	iface,
		REFIID	iid,
		void **	out
	)

static

Definition at line 547 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_source_pin(iface);
 
    if (IsEqualGUID(iid, &IID_IMediaPosition))
        *out = &filter->passthrough.IMediaPosition_iface;
    else if (IsEqualGUID(iid, &IID_IMediaSeeking))
        *out = &filter->passthrough.IMediaSeeking_iface;
    else
        return E_NOINTERFACE;
 
    IUnknown_AddRef((IUnknown *)*out);
    return S_OK;
}

◆ SampleGrabber_callback()

static void SampleGrabber_callback	(	struct sample_grabber *	This,
		IMediaSample *	sample
	)

static

Definition at line 133 of file samplegrabber.c.

{
    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.filter_cs);
            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.filter_cs);
        }
    }
    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 %lu\n", This, sample, ref);
        }
        }
            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("Unknown method %ld.\n", This->grabberMethod);
            /* do not bother us again */
            This->grabberMethod = -1;
    }
}

Referenced by SampleGrabber_IMemInputPin_Receive(), and SampleGrabber_IMemInputPin_ReceiveMultiple().

◆ SampleGrabber_cleanup()

static void SampleGrabber_cleanup ( struct sample_grabber * This )

static

Definition at line 78 of file samplegrabber.c.

{
    TRACE("(%p)\n", This);
    if (This->allocator)
        IMemAllocator_Release(This->allocator);
    if (This->grabberIface)
        ISampleGrabberCB_Release(This->grabberIface);
    FreeMediaType(&This->filter_mt);
    CoTaskMemFree(This->bufferData);
}

Referenced by sample_grabber_destroy().

◆ SampleGrabber_IMemInputPin_AddRef()

static ULONG WINAPI SampleGrabber_IMemInputPin_AddRef ( IMemInputPin * iface )

static

Definition at line 333 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_IMemInputPin(iface);
    return IPin_AddRef(&filter->sink.pin.IPin_iface);
}

◆ SampleGrabber_IMemInputPin_GetAllocator()

static HRESULT WINAPI SampleGrabber_IMemInputPin_GetAllocator	(	IMemInputPin *	iface,
		IMemAllocator **	allocator
	)

static

Definition at line 347 of file samplegrabber.c.

{
    struct sample_grabber *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;
}

◆ SampleGrabber_IMemInputPin_GetAllocatorRequirements()

static HRESULT WINAPI SampleGrabber_IMemInputPin_GetAllocatorRequirements	(	IMemInputPin *	iface,
		ALLOCATOR_PROPERTIES *	props
	)

static

Definition at line 378 of file samplegrabber.c.

{
    struct sample_grabber *This = impl_from_IMemInputPin(iface);
    FIXME("(%p)->(%p): semi-stub\n", This, props);
    if (!props)
        return E_POINTER;
    return This->source.pMemInputPin ? IMemInputPin_GetAllocatorRequirements(This->source.pMemInputPin, props) : E_NOTIMPL;
}

◆ SampleGrabber_IMemInputPin_NotifyAllocator()

static HRESULT WINAPI SampleGrabber_IMemInputPin_NotifyAllocator	(	IMemInputPin *	iface,
		IMemAllocator *	allocator,
		BOOL	readOnly
	)

static

Definition at line 362 of file samplegrabber.c.

{
    struct sample_grabber *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;
}

◆ SampleGrabber_IMemInputPin_QueryInterface()

static HRESULT WINAPI SampleGrabber_IMemInputPin_QueryInterface	(	IMemInputPin *	iface,
		REFIID	iid,
		void **	out
	)

static

Definition at line 327 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_IMemInputPin(iface);
    return IPin_QueryInterface(&filter->sink.pin.IPin_iface, iid, out);
}

◆ SampleGrabber_IMemInputPin_Receive()

static HRESULT WINAPI SampleGrabber_IMemInputPin_Receive	(	IMemInputPin *	iface,
		IMediaSample *	sample
	)

static

Definition at line 389 of file samplegrabber.c.

{
    struct sample_grabber *This = impl_from_IMemInputPin(iface);
    HRESULT hr;
    TRACE("(%p)->(%p) output = %p, grabber = %p\n", This, sample, This->source.pMemInputPin, This->grabberIface);
    if (!sample)
        return E_POINTER;
    if (This->oneShot == OneShot_Past)
        return S_FALSE;
    SampleGrabber_callback(This, sample);
    hr = This->source.pMemInputPin ? IMemInputPin_Receive(This->source.pMemInputPin, sample) : S_OK;
    if (This->oneShot == OneShot_Wait) {
        This->oneShot = OneShot_Past;
        hr = S_FALSE;
        if (This->source.pin.peer)
            IPin_EndOfStream(This->source.pin.peer);
    }
    return hr;
}

◆ SampleGrabber_IMemInputPin_ReceiveCanBlock()

static HRESULT WINAPI SampleGrabber_IMemInputPin_ReceiveCanBlock ( IMemInputPin * iface )

static

Definition at line 429 of file samplegrabber.c.

{
    struct sample_grabber *This = impl_from_IMemInputPin(iface);
    TRACE("(%p)\n", This);
    return This->source.pMemInputPin ? IMemInputPin_ReceiveCanBlock(This->source.pMemInputPin) : S_OK;
}

◆ SampleGrabber_IMemInputPin_ReceiveMultiple()

static HRESULT WINAPI SampleGrabber_IMemInputPin_ReceiveMultiple	(	IMemInputPin *	iface,
		IMediaSample **	samples,
		LONG	nSamples,
		LONG *	nProcessed
	)

static

Definition at line 411 of file samplegrabber.c.

{
    struct sample_grabber *This = impl_from_IMemInputPin(iface);
    LONG idx;
 
    TRACE("filter %p, samples %p, count %lu, ret_count %p.\n", This, samples, nSamples, nProcessed);
 
    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->source.pMemInputPin ? IMemInputPin_ReceiveMultiple(This->source.pMemInputPin, samples, nSamples, nProcessed) : S_OK;
}

◆ SampleGrabber_IMemInputPin_Release()

static ULONG WINAPI SampleGrabber_IMemInputPin_Release ( IMemInputPin * iface )

static

Definition at line 339 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_IMemInputPin(iface);
    return IPin_Release(&filter->sink.pin.IPin_iface);
}

◆ SampleGrabber_ISampleGrabber_AddRef()

static ULONG WINAPI SampleGrabber_ISampleGrabber_AddRef ( ISampleGrabber * iface )

static

Definition at line 197 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_ISampleGrabber(iface);
    return IUnknown_AddRef(filter->filter.outer_unk);
}

◆ SampleGrabber_ISampleGrabber_GetConnectedMediaType()

static HRESULT WINAPI SampleGrabber_ISampleGrabber_GetConnectedMediaType	(	ISampleGrabber *	iface,
		AM_MEDIA_TYPE *	mt
	)

static

Definition at line 239 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_ISampleGrabber(iface);
 
    TRACE("filter %p, mt %p.\n", filter, mt);
 
    if (!mt)
        return E_POINTER;
 
    if (!filter->sink.pin.peer)
        return VFW_E_NOT_CONNECTED;
 
    CopyMediaType(mt, &filter->sink.pin.mt);
    return S_OK;
}

◆ SampleGrabber_ISampleGrabber_GetCurrentBuffer()

static HRESULT WINAPI SampleGrabber_ISampleGrabber_GetCurrentBuffer	(	ISampleGrabber *	iface,
		LONG *	bufSize,
		LONG *	buffer
	)

static

Definition at line 274 of file samplegrabber.c.

{
    struct sample_grabber *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.filter_cs);
    if (!This->sink.pin.peer)
        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.filter_cs);
    return ret;
}

◆ SampleGrabber_ISampleGrabber_GetCurrentSample()

static HRESULT WINAPI SampleGrabber_ISampleGrabber_GetCurrentSample	(	ISampleGrabber *	iface,
		IMediaSample **	sample
	)

static

Definition at line 303 of file samplegrabber.c.

{
    /* MS doesn't implement it either, no one should call it */
    WARN("(%p): not implemented\n", sample);
    return E_NOTIMPL;
}

◆ SampleGrabber_ISampleGrabber_QueryInterface()

static HRESULT WINAPI SampleGrabber_ISampleGrabber_QueryInterface	(	ISampleGrabber *	iface,
		REFIID	riid,
		void **	ppv
	)

static

Definition at line 189 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_ISampleGrabber(iface);
    return IUnknown_QueryInterface(filter->filter.outer_unk, riid, ppv);
}

◆ SampleGrabber_ISampleGrabber_Release()

static ULONG WINAPI SampleGrabber_ISampleGrabber_Release ( ISampleGrabber * iface )

static

Definition at line 205 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_ISampleGrabber(iface);
    return IUnknown_Release(filter->filter.outer_unk);
}

◆ SampleGrabber_ISampleGrabber_SetBufferSamples()

static HRESULT WINAPI SampleGrabber_ISampleGrabber_SetBufferSamples	(	ISampleGrabber *	iface,
		BOOL	bufferEm
	)

static

Definition at line 257 of file samplegrabber.c.

{
    struct sample_grabber *This = impl_from_ISampleGrabber(iface);
    TRACE("(%p)->(%u)\n", This, bufferEm);
    EnterCriticalSection(&This->filter.filter_cs);
    if (bufferEm) {
        if (This->bufferLen < 0)
            This->bufferLen = 0;
    }
    else
        This->bufferLen = -1;
    LeaveCriticalSection(&This->filter.filter_cs);
    return S_OK;
}

◆ SampleGrabber_ISampleGrabber_SetCallback()

static HRESULT WINAPI SampleGrabber_ISampleGrabber_SetCallback	(	ISampleGrabber *	iface,
		ISampleGrabberCB *	cb,
		LONG	whichMethod
	)

static

Definition at line 312 of file samplegrabber.c.

{
    struct sample_grabber *This = impl_from_ISampleGrabber(iface);
 
    TRACE("filter %p, callback %p, method %ld.\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;
}

◆ SampleGrabber_ISampleGrabber_SetMediaType()

static HRESULT WINAPI SampleGrabber_ISampleGrabber_SetMediaType	(	ISampleGrabber *	iface,
		const AM_MEDIA_TYPE *	mt
	)

static

Definition at line 222 of file samplegrabber.c.

{
    struct sample_grabber *filter = impl_from_ISampleGrabber(iface);
 
    TRACE("filter %p, mt %p.\n", filter, mt);
    strmbase_dump_media_type(mt);
 
    if (!mt)
        return E_POINTER;
 
    FreeMediaType(&filter->filter_mt);
    CopyMediaType(&filter->filter_mt, mt);
    return S_OK;
}

◆ SampleGrabber_ISampleGrabber_SetOneShot()

static HRESULT WINAPI SampleGrabber_ISampleGrabber_SetOneShot	(	ISampleGrabber *	iface,
		BOOL	oneShot
	)

static

Definition at line 213 of file samplegrabber.c.

{
    struct sample_grabber *This = impl_from_ISampleGrabber(iface);
    TRACE("(%p)->(%u)\n", This, oneShot);
    This->oneShot = oneShot ? OneShot_Wait : OneShot_None;
    return S_OK;
}

◆ WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL ( quartz )

Variable Documentation

◆ filter_ops

const struct strmbase_filter_ops filter_ops

static

Initial value:

=
{
    .filter_get_pin = sample_grabber_get_pin,
    .filter_destroy = sample_grabber_destroy,
    .filter_query_interface = sample_grabber_query_interface,
}

Definition at line 125 of file samplegrabber.c.

Referenced by sample_grabber_create().

◆ IMemInputPin_VTable

const IMemInputPinVtbl IMemInputPin_VTable

static

Initial value:

=
{
    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,
}

Definition at line 450 of file samplegrabber.c.

Referenced by sample_grabber_create().

◆ ISampleGrabber_VTable

const ISampleGrabberVtbl ISampleGrabber_VTable

static

Initial value:

=
{
    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,
}

Definition at line 436 of file samplegrabber.c.

Referenced by sample_grabber_create().

◆ sink_ops

const struct strmbase_sink_ops sink_ops

static

Initial value:

=
{
    .base.pin_query_interface = sample_grabber_sink_query_interface,
    .base.pin_query_accept = sample_grabber_sink_query_accept,
    .base.pin_get_media_type = sample_grabber_sink_get_media_type,
}

Definition at line 535 of file samplegrabber.c.

Referenced by sample_grabber_create().

◆ source_ops

const struct strmbase_source_ops source_ops

static

Initial value:

=
{
    .base.pin_query_interface = sample_grabber_source_query_interface,
    .base.pin_query_accept = sample_grabber_source_query_accept,
    .base.pin_get_media_type = sample_grabber_source_get_media_type,
    .pfnAttemptConnection = BaseOutputPinImpl_AttemptConnection,
    .pfnDecideAllocator = sample_grabber_source_DecideAllocator,
}

Definition at line 631 of file samplegrabber.c.

Referenced by sample_grabber_create().

Classes

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

◆ COBJMACROS

Enumeration Type Documentation

◆ anonymous enum

Function Documentation

◆ check_filter_mt()

◆ compare_media_types()

◆ impl_from_IMemInputPin()

◆ impl_from_ISampleGrabber()

◆ impl_from_sink_pin()

◆ impl_from_source_pin()

◆ impl_from_strmbase_filter()

◆ sample_grabber_create()

◆ sample_grabber_destroy()

◆ sample_grabber_get_pin()

◆ sample_grabber_query_interface()

◆ sample_grabber_sink_get_media_type()

◆ sample_grabber_sink_query_accept()

◆ sample_grabber_sink_query_interface()

◆ sample_grabber_source_DecideAllocator()

◆ sample_grabber_source_get_media_type()

◆ sample_grabber_source_query_accept()

◆ sample_grabber_source_query_interface()

◆ SampleGrabber_callback()

◆ SampleGrabber_cleanup()

◆ SampleGrabber_IMemInputPin_AddRef()

◆ SampleGrabber_IMemInputPin_GetAllocator()

◆ SampleGrabber_IMemInputPin_GetAllocatorRequirements()

◆ SampleGrabber_IMemInputPin_NotifyAllocator()

◆ SampleGrabber_IMemInputPin_QueryInterface()

◆ SampleGrabber_IMemInputPin_Receive()

◆ SampleGrabber_IMemInputPin_ReceiveCanBlock()

◆ SampleGrabber_IMemInputPin_ReceiveMultiple()

◆ SampleGrabber_IMemInputPin_Release()

◆ SampleGrabber_ISampleGrabber_AddRef()

◆ SampleGrabber_ISampleGrabber_GetConnectedMediaType()

◆ SampleGrabber_ISampleGrabber_GetCurrentBuffer()

◆ SampleGrabber_ISampleGrabber_GetCurrentSample()

◆ SampleGrabber_ISampleGrabber_QueryInterface()

◆ SampleGrabber_ISampleGrabber_Release()

◆ SampleGrabber_ISampleGrabber_SetBufferSamples()

◆ SampleGrabber_ISampleGrabber_SetCallback()

◆ SampleGrabber_ISampleGrabber_SetMediaType()

◆ SampleGrabber_ISampleGrabber_SetOneShot()

◆ WINE_DEFAULT_DEBUG_CHANNEL()

Variable Documentation

◆ filter_ops

◆ IMemInputPin_VTable

◆ ISampleGrabber_VTable

◆ sink_ops

◆ source_ops