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author | Ramiro Polla <ramiro.polla@gmail.com> | 2011-05-21 14:24:50 +0200 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2011-05-21 17:23:14 +0200 |
commit | 95eb2e3a3819e8b6d87940bfa41bf1ea3ae68f5a (patch) | |
tree | a6b05f2a93b4fadf6790d032d8830906150e3e3d /libavdevice/dshow_enumpins.c | |
parent | f8c49d02b0f17c3011712ec4638ec4c6c76e7831 (diff) | |
download | ffmpeg-streaming-95eb2e3a3819e8b6d87940bfa41bf1ea3ae68f5a.zip ffmpeg-streaming-95eb2e3a3819e8b6d87940bfa41bf1ea3ae68f5a.tar.gz |
DirectShow capture support
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavdevice/dshow_enumpins.c')
-rw-r--r-- | libavdevice/dshow_enumpins.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/libavdevice/dshow_enumpins.c b/libavdevice/dshow_enumpins.c new file mode 100644 index 0000000..97890fb --- /dev/null +++ b/libavdevice/dshow_enumpins.c @@ -0,0 +1,99 @@ +/* + * 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) |