mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/*
|
|
* DirectShow capture interface
|
|
* Copyright (c) 2010 Ramiro Polla
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg 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.
|
|
*
|
|
* FFmpeg 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 FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "dshow.h"
|
|
|
|
DECLARE_QUERYINTERFACE(libAVEnumPins,
|
|
{ {&IID_IUnknown,0}, {&IID_IEnumPins,0} })
|
|
DECLARE_ADDREF(libAVEnumPins)
|
|
DECLARE_RELEASE(libAVEnumPins)
|
|
|
|
long WINAPI
|
|
libAVEnumPins_Next(libAVEnumPins *this, unsigned long n, IPin **pins,
|
|
unsigned long *fetched)
|
|
{
|
|
int count = 0;
|
|
dshowdebug("libAVEnumPins_Next(%p)\n", this);
|
|
if (!pins)
|
|
return E_POINTER;
|
|
if (!this->pos && n == 1) {
|
|
libAVPin_AddRef(this->pin);
|
|
*pins = (IPin *) this->pin;
|
|
count = 1;
|
|
this->pos = 1;
|
|
}
|
|
if (fetched)
|
|
*fetched = count;
|
|
if (!count)
|
|
return S_FALSE;
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVEnumPins_Skip(libAVEnumPins *this, unsigned long n)
|
|
{
|
|
dshowdebug("libAVEnumPins_Skip(%p)\n", this);
|
|
if (n) /* Any skip will always fall outside of the only valid pin. */
|
|
return S_FALSE;
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVEnumPins_Reset(libAVEnumPins *this)
|
|
{
|
|
dshowdebug("libAVEnumPins_Reset(%p)\n", this);
|
|
this->pos = 0;
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVEnumPins_Clone(libAVEnumPins *this, libAVEnumPins **pins)
|
|
{
|
|
libAVEnumPins *new;
|
|
dshowdebug("libAVEnumPins_Clone(%p)\n", this);
|
|
if (!pins)
|
|
return E_POINTER;
|
|
new = libAVEnumPins_Create(this->pin, this->filter);
|
|
if (!new)
|
|
return E_OUTOFMEMORY;
|
|
new->pos = this->pos;
|
|
*pins = new;
|
|
return S_OK;
|
|
}
|
|
|
|
static int
|
|
libAVEnumPins_Setup(libAVEnumPins *this, libAVPin *pin, libAVFilter *filter)
|
|
{
|
|
IEnumPinsVtbl *vtbl = this->vtbl;
|
|
SETVTBL(vtbl, libAVEnumPins, QueryInterface);
|
|
SETVTBL(vtbl, libAVEnumPins, AddRef);
|
|
SETVTBL(vtbl, libAVEnumPins, Release);
|
|
SETVTBL(vtbl, libAVEnumPins, Next);
|
|
SETVTBL(vtbl, libAVEnumPins, Skip);
|
|
SETVTBL(vtbl, libAVEnumPins, Reset);
|
|
SETVTBL(vtbl, libAVEnumPins, Clone);
|
|
|
|
this->pin = pin;
|
|
this->filter = filter;
|
|
libAVFilter_AddRef(this->filter);
|
|
|
|
return 1;
|
|
}
|
|
DECLARE_CREATE(libAVEnumPins, libAVEnumPins_Setup(this, pin, filter),
|
|
libAVPin *pin, libAVFilter *filter)
|
|
DECLARE_DESTROY(libAVEnumPins, nothing)
|