mirror of
https://git.ffmpeg.org/ffmpeg.git
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362 lines
10 KiB
C
362 lines
10 KiB
C
/*
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* DirectShow capture interface
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* Copyright (c) 2010 Ramiro Polla
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "dshow.h"
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#include <stddef.h>
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#define imemoffset offsetof(libAVPin, imemvtbl)
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DECLARE_QUERYINTERFACE(libAVPin,
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{ {&IID_IUnknown,0}, {&IID_IPin,0}, {&IID_IMemInputPin,imemoffset} })
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DECLARE_ADDREF(libAVPin)
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DECLARE_RELEASE(libAVPin)
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long WINAPI
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libAVPin_Connect(libAVPin *this, IPin *pin, const AM_MEDIA_TYPE *type)
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{
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dshowdebug("libAVPin_Connect(%p, %p, %p)\n", this, pin, type);
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/* Input pins receive connections. */
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return S_FALSE;
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}
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long WINAPI
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libAVPin_ReceiveConnection(libAVPin *this, IPin *pin,
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const AM_MEDIA_TYPE *type)
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{
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enum dshowDeviceType devtype = this->filter->type;
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dshowdebug("libAVPin_ReceiveConnection(%p)\n", this);
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if (!pin)
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return E_POINTER;
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if (this->connectedto)
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return VFW_E_ALREADY_CONNECTED;
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ff_print_AM_MEDIA_TYPE(type);
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if (devtype == VideoDevice) {
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if (!IsEqualGUID(&type->majortype, &MEDIATYPE_Video))
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return VFW_E_TYPE_NOT_ACCEPTED;
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} else {
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if (!IsEqualGUID(&type->majortype, &MEDIATYPE_Audio))
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return VFW_E_TYPE_NOT_ACCEPTED;
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}
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IPin_AddRef(pin);
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this->connectedto = pin;
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ff_copy_dshow_media_type(&this->type, type);
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return S_OK;
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}
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long WINAPI
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libAVPin_Disconnect(libAVPin *this)
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{
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dshowdebug("libAVPin_Disconnect(%p)\n", this);
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if (this->filter->state != State_Stopped)
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return VFW_E_NOT_STOPPED;
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if (!this->connectedto)
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return S_FALSE;
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this->connectedto = NULL;
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return S_OK;
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}
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long WINAPI
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libAVPin_ConnectedTo(libAVPin *this, IPin **pin)
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{
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dshowdebug("libAVPin_ConnectedTo(%p)\n", this);
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if (!pin)
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return E_POINTER;
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if (!this->connectedto)
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return VFW_E_NOT_CONNECTED;
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IPin_AddRef(this->connectedto);
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*pin = this->connectedto;
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return S_OK;
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}
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long WINAPI
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libAVPin_ConnectionMediaType(libAVPin *this, AM_MEDIA_TYPE *type)
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{
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dshowdebug("libAVPin_ConnectionMediaType(%p)\n", this);
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if (!type)
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return E_POINTER;
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if (!this->connectedto)
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return VFW_E_NOT_CONNECTED;
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return ff_copy_dshow_media_type(type, &this->type);
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}
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long WINAPI
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libAVPin_QueryPinInfo(libAVPin *this, PIN_INFO *info)
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{
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dshowdebug("libAVPin_QueryPinInfo(%p)\n", this);
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if (!info)
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return E_POINTER;
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if (this->filter)
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libAVFilter_AddRef(this->filter);
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info->pFilter = (IBaseFilter *) this->filter;
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info->dir = PINDIR_INPUT;
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wcscpy(info->achName, L"Capture");
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return S_OK;
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}
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long WINAPI
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libAVPin_QueryDirection(libAVPin *this, PIN_DIRECTION *dir)
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{
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dshowdebug("libAVPin_QueryDirection(%p)\n", this);
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if (!dir)
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return E_POINTER;
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*dir = PINDIR_INPUT;
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return S_OK;
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}
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long WINAPI
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libAVPin_QueryId(libAVPin *this, wchar_t **id)
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{
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dshowdebug("libAVPin_QueryId(%p)\n", this);
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if (!id)
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return E_POINTER;
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*id = wcsdup(L"libAV Pin");
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return S_OK;
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}
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long WINAPI
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libAVPin_QueryAccept(libAVPin *this, const AM_MEDIA_TYPE *type)
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{
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dshowdebug("libAVPin_QueryAccept(%p)\n", this);
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return S_FALSE;
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}
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long WINAPI
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libAVPin_EnumMediaTypes(libAVPin *this, IEnumMediaTypes **enumtypes)
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{
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const AM_MEDIA_TYPE *type = NULL;
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libAVEnumMediaTypes *new;
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dshowdebug("libAVPin_EnumMediaTypes(%p)\n", this);
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if (!enumtypes)
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return E_POINTER;
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new = libAVEnumMediaTypes_Create(type);
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if (!new)
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return E_OUTOFMEMORY;
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*enumtypes = (IEnumMediaTypes *) new;
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return S_OK;
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}
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long WINAPI
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libAVPin_QueryInternalConnections(libAVPin *this, IPin **pin,
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unsigned long *npin)
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{
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dshowdebug("libAVPin_QueryInternalConnections(%p)\n", this);
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return E_NOTIMPL;
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}
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long WINAPI
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libAVPin_EndOfStream(libAVPin *this)
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{
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dshowdebug("libAVPin_EndOfStream(%p)\n", this);
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/* I don't care. */
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return S_OK;
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}
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long WINAPI
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libAVPin_BeginFlush(libAVPin *this)
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{
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dshowdebug("libAVPin_BeginFlush(%p)\n", this);
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/* I don't care. */
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return S_OK;
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}
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long WINAPI
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libAVPin_EndFlush(libAVPin *this)
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{
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dshowdebug("libAVPin_EndFlush(%p)\n", this);
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/* I don't care. */
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return S_OK;
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}
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long WINAPI
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libAVPin_NewSegment(libAVPin *this, REFERENCE_TIME start, REFERENCE_TIME stop,
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double rate)
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{
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dshowdebug("libAVPin_NewSegment(%p)\n", this);
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/* I don't care. */
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return S_OK;
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}
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static int
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libAVPin_Setup(libAVPin *this, libAVFilter *filter)
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{
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IPinVtbl *vtbl = this->vtbl;
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IMemInputPinVtbl *imemvtbl;
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if (!filter)
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return 0;
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imemvtbl = av_malloc(sizeof(IMemInputPinVtbl));
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if (!imemvtbl)
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return 0;
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SETVTBL(imemvtbl, libAVMemInputPin, QueryInterface);
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SETVTBL(imemvtbl, libAVMemInputPin, AddRef);
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SETVTBL(imemvtbl, libAVMemInputPin, Release);
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SETVTBL(imemvtbl, libAVMemInputPin, GetAllocator);
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SETVTBL(imemvtbl, libAVMemInputPin, NotifyAllocator);
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SETVTBL(imemvtbl, libAVMemInputPin, GetAllocatorRequirements);
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SETVTBL(imemvtbl, libAVMemInputPin, Receive);
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SETVTBL(imemvtbl, libAVMemInputPin, ReceiveMultiple);
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SETVTBL(imemvtbl, libAVMemInputPin, ReceiveCanBlock);
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this->imemvtbl = imemvtbl;
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SETVTBL(vtbl, libAVPin, QueryInterface);
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SETVTBL(vtbl, libAVPin, AddRef);
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SETVTBL(vtbl, libAVPin, Release);
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SETVTBL(vtbl, libAVPin, Connect);
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SETVTBL(vtbl, libAVPin, ReceiveConnection);
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SETVTBL(vtbl, libAVPin, Disconnect);
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SETVTBL(vtbl, libAVPin, ConnectedTo);
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SETVTBL(vtbl, libAVPin, ConnectionMediaType);
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SETVTBL(vtbl, libAVPin, QueryPinInfo);
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SETVTBL(vtbl, libAVPin, QueryDirection);
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SETVTBL(vtbl, libAVPin, QueryId);
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SETVTBL(vtbl, libAVPin, QueryAccept);
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SETVTBL(vtbl, libAVPin, EnumMediaTypes);
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SETVTBL(vtbl, libAVPin, QueryInternalConnections);
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SETVTBL(vtbl, libAVPin, EndOfStream);
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SETVTBL(vtbl, libAVPin, BeginFlush);
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SETVTBL(vtbl, libAVPin, EndFlush);
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SETVTBL(vtbl, libAVPin, NewSegment);
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this->filter = filter;
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return 1;
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}
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DECLARE_CREATE(libAVPin, libAVPin_Setup(this, filter), libAVFilter *filter)
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DECLARE_DESTROY(libAVPin, nothing)
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/*****************************************************************************
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* libAVMemInputPin
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****************************************************************************/
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long WINAPI
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libAVMemInputPin_QueryInterface(libAVMemInputPin *this, const GUID *riid,
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void **ppvObject)
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{
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libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset);
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dshowdebug("libAVMemInputPin_QueryInterface(%p)\n", this);
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return libAVPin_QueryInterface(pin, riid, ppvObject);
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}
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unsigned long WINAPI
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libAVMemInputPin_AddRef(libAVMemInputPin *this)
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{
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libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset);
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dshowdebug("libAVMemInputPin_AddRef(%p)\n", this);
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return libAVPin_AddRef(pin);
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}
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unsigned long WINAPI
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libAVMemInputPin_Release(libAVMemInputPin *this)
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{
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libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset);
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dshowdebug("libAVMemInputPin_Release(%p)\n", this);
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return libAVPin_Release(pin);
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}
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long WINAPI
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libAVMemInputPin_GetAllocator(libAVMemInputPin *this, IMemAllocator **alloc)
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{
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dshowdebug("libAVMemInputPin_GetAllocator(%p)\n", this);
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return VFW_E_NO_ALLOCATOR;
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}
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long WINAPI
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libAVMemInputPin_NotifyAllocator(libAVMemInputPin *this, IMemAllocator *alloc,
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WINBOOL rdwr)
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{
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dshowdebug("libAVMemInputPin_NotifyAllocator(%p)\n", this);
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return S_OK;
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}
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long WINAPI
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libAVMemInputPin_GetAllocatorRequirements(libAVMemInputPin *this,
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ALLOCATOR_PROPERTIES *props)
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{
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dshowdebug("libAVMemInputPin_GetAllocatorRequirements(%p)\n", this);
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return E_NOTIMPL;
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}
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long WINAPI
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libAVMemInputPin_Receive(libAVMemInputPin *this, IMediaSample *sample)
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{
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libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset);
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enum dshowDeviceType devtype = pin->filter->type;
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void *priv_data;
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uint8_t *buf;
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int buf_size;
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int index;
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int64_t curtime;
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dshowdebug("libAVMemInputPin_Receive(%p)\n", this);
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if (!sample)
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return E_POINTER;
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if (devtype == VideoDevice) {
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/* PTS from video devices is unreliable. */
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IReferenceClock *clock = pin->filter->clock;
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IReferenceClock_GetTime(clock, &curtime);
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} else {
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int64_t dummy;
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IMediaSample_GetTime(sample, &curtime, &dummy);
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curtime += pin->filter->start_time;
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}
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buf_size = IMediaSample_GetActualDataLength(sample);
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IMediaSample_GetPointer(sample, &buf);
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priv_data = pin->filter->priv_data;
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index = pin->filter->stream_index;
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pin->filter->callback(priv_data, index, buf, buf_size, curtime);
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return S_OK;
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}
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long WINAPI
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libAVMemInputPin_ReceiveMultiple(libAVMemInputPin *this,
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IMediaSample **samples, long n, long *nproc)
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{
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int i;
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dshowdebug("libAVMemInputPin_ReceiveMultiple(%p)\n", this);
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for (i = 0; i < n; i++)
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libAVMemInputPin_Receive(this, samples[i]);
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*nproc = n;
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return S_OK;
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}
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long WINAPI
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libAVMemInputPin_ReceiveCanBlock(libAVMemInputPin *this)
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{
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dshowdebug("libAVMemInputPin_ReceiveCanBlock(%p)\n", this);
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/* I swear I will not block. */
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return S_FALSE;
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}
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void
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libAVMemInputPin_Destroy(libAVMemInputPin *this)
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{
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libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset);
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dshowdebug("libAVMemInputPin_Destroy(%p)\n", this);
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return libAVPin_Destroy(pin);
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}
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