mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
105 lines
3.0 KiB
105 lines
3.0 KiB
/* |
|
* 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_capture.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; |
|
} |
|
static int |
|
libAVEnumPins_Cleanup(libAVEnumPins *this) |
|
{ |
|
libAVFilter_Release(this->filter); |
|
return 1; |
|
} |
|
DECLARE_CREATE(libAVEnumPins, libAVEnumPins_Setup(this, pin, filter), |
|
libAVPin *pin, libAVFilter *filter) |
|
DECLARE_DESTROY(libAVEnumPins, libAVEnumPins_Cleanup)
|
|
|