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268 lines
14 KiB
268 lines
14 KiB
/* |
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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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#define DSHOWDEBUG 0 |
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#include "avdevice.h" |
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#define COBJMACROS |
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#include <windows.h> |
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#include <dshow.h> |
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#include <dvdmedia.h> |
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long ff_copy_dshow_media_type(AM_MEDIA_TYPE *dst, const AM_MEDIA_TYPE *src); |
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void ff_print_VIDEO_STREAM_CONFIG_CAPS(const VIDEO_STREAM_CONFIG_CAPS *caps); |
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void ff_print_AUDIO_STREAM_CONFIG_CAPS(const AUDIO_STREAM_CONFIG_CAPS *caps); |
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void ff_print_AM_MEDIA_TYPE(const AM_MEDIA_TYPE *type); |
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void ff_printGUID(const GUID *g); |
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#if DSHOWDEBUG |
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extern const AVClass *ff_dshow_context_class_ptr; |
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#define dshowdebug(...) av_log(&ff_dshow_context_class_ptr, AV_LOG_DEBUG, __VA_ARGS__) |
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#else |
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#define dshowdebug(...) |
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#endif |
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static inline void nothing(void *foo) |
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{ |
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} |
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struct GUIDoffset { |
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const GUID *iid; |
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int offset; |
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}; |
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enum dshowDeviceType { |
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VideoDevice = 0, |
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AudioDevice = 1, |
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}; |
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#define DECLARE_QUERYINTERFACE(class, ...) \ |
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long WINAPI \ |
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class##_QueryInterface(class *this, const GUID *riid, void **ppvObject) \ |
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{ \ |
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struct GUIDoffset ifaces[] = __VA_ARGS__; \ |
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int i; \ |
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dshowdebug(AV_STRINGIFY(class)"_QueryInterface(%p, %p, %p)\n", this, riid, ppvObject); \ |
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ff_printGUID(riid); \ |
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if (!ppvObject) \ |
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return E_POINTER; \ |
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for (i = 0; i < sizeof(ifaces)/sizeof(ifaces[0]); i++) { \ |
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if (IsEqualGUID(riid, ifaces[i].iid)) { \ |
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void *obj = (void *) ((uint8_t *) this + ifaces[i].offset); \ |
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class##_AddRef(this); \ |
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dshowdebug("\tfound %d with offset %d\n", i, ifaces[i].offset); \ |
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*ppvObject = (void *) obj; \ |
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return S_OK; \ |
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} \ |
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} \ |
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dshowdebug("\tE_NOINTERFACE\n"); \ |
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*ppvObject = NULL; \ |
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return E_NOINTERFACE; \ |
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} |
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#define DECLARE_ADDREF(class) \ |
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unsigned long WINAPI \ |
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class##_AddRef(class *this) \ |
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{ \ |
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dshowdebug(AV_STRINGIFY(class)"_AddRef(%p)\t%ld\n", this, this->ref+1); \ |
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return InterlockedIncrement(&this->ref); \ |
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} |
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#define DECLARE_RELEASE(class) \ |
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unsigned long WINAPI \ |
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class##_Release(class *this) \ |
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{ \ |
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long ref = InterlockedDecrement(&this->ref); \ |
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dshowdebug(AV_STRINGIFY(class)"_Release(%p)\t%ld\n", this, ref); \ |
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if (!ref) \ |
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class##_Destroy(this); \ |
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return ref; \ |
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} |
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#define DECLARE_DESTROY(class, func) \ |
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void class##_Destroy(class *this) \ |
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{ \ |
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dshowdebug(AV_STRINGIFY(class)"_Destroy(%p)\n", this); \ |
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func(this); \ |
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if (this) { \ |
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if (this->vtbl) \ |
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CoTaskMemFree(this->vtbl); \ |
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CoTaskMemFree(this); \ |
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} \ |
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} |
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#define DECLARE_CREATE(class, setup, ...) \ |
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class *class##_Create(__VA_ARGS__) \ |
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{ \ |
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class *this = CoTaskMemAlloc(sizeof(class)); \ |
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void *vtbl = CoTaskMemAlloc(sizeof(*this->vtbl)); \ |
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dshowdebug(AV_STRINGIFY(class)"_Create(%p)\n", this); \ |
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if (!this || !vtbl) \ |
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goto fail; \ |
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ZeroMemory(this, sizeof(class)); \ |
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ZeroMemory(vtbl, sizeof(*this->vtbl)); \ |
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this->ref = 1; \ |
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this->vtbl = vtbl; \ |
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if (!setup) \ |
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goto fail; \ |
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dshowdebug("created "AV_STRINGIFY(class)" %p\n", this); \ |
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return this; \ |
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fail: \ |
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class##_Destroy(this); \ |
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dshowdebug("could not create "AV_STRINGIFY(class)"\n"); \ |
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return NULL; \ |
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} |
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#define SETVTBL(vtbl, class, fn) \ |
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do { (vtbl)->fn = (void *) class##_##fn; } while(0) |
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/***************************************************************************** |
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* Forward Declarations |
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****************************************************************************/ |
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typedef struct libAVPin libAVPin; |
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typedef struct libAVMemInputPin libAVMemInputPin; |
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typedef struct libAVEnumPins libAVEnumPins; |
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typedef struct libAVEnumMediaTypes libAVEnumMediaTypes; |
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typedef struct libAVFilter libAVFilter; |
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/***************************************************************************** |
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* libAVPin |
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****************************************************************************/ |
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struct libAVPin { |
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IPinVtbl *vtbl; |
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long ref; |
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libAVFilter *filter; |
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IPin *connectedto; |
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AM_MEDIA_TYPE type; |
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IMemInputPinVtbl *imemvtbl; |
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}; |
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long WINAPI libAVPin_QueryInterface (libAVPin *, const GUID *, void **); |
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unsigned long WINAPI libAVPin_AddRef (libAVPin *); |
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unsigned long WINAPI libAVPin_Release (libAVPin *); |
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long WINAPI libAVPin_Connect (libAVPin *, IPin *, const AM_MEDIA_TYPE *); |
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long WINAPI libAVPin_ReceiveConnection (libAVPin *, IPin *, const AM_MEDIA_TYPE *); |
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long WINAPI libAVPin_Disconnect (libAVPin *); |
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long WINAPI libAVPin_ConnectedTo (libAVPin *, IPin **); |
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long WINAPI libAVPin_ConnectionMediaType (libAVPin *, AM_MEDIA_TYPE *); |
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long WINAPI libAVPin_QueryPinInfo (libAVPin *, PIN_INFO *); |
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long WINAPI libAVPin_QueryDirection (libAVPin *, PIN_DIRECTION *); |
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long WINAPI libAVPin_QueryId (libAVPin *, wchar_t **); |
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long WINAPI libAVPin_QueryAccept (libAVPin *, const AM_MEDIA_TYPE *); |
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long WINAPI libAVPin_EnumMediaTypes (libAVPin *, IEnumMediaTypes **); |
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long WINAPI libAVPin_QueryInternalConnections(libAVPin *, IPin **, unsigned long *); |
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long WINAPI libAVPin_EndOfStream (libAVPin *); |
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long WINAPI libAVPin_BeginFlush (libAVPin *); |
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long WINAPI libAVPin_EndFlush (libAVPin *); |
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long WINAPI libAVPin_NewSegment (libAVPin *, REFERENCE_TIME, REFERENCE_TIME, double); |
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long WINAPI libAVMemInputPin_QueryInterface (libAVMemInputPin *, const GUID *, void **); |
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unsigned long WINAPI libAVMemInputPin_AddRef (libAVMemInputPin *); |
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unsigned long WINAPI libAVMemInputPin_Release (libAVMemInputPin *); |
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long WINAPI libAVMemInputPin_GetAllocator (libAVMemInputPin *, IMemAllocator **); |
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long WINAPI libAVMemInputPin_NotifyAllocator (libAVMemInputPin *, IMemAllocator *, WINBOOL); |
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long WINAPI libAVMemInputPin_GetAllocatorRequirements(libAVMemInputPin *, ALLOCATOR_PROPERTIES *); |
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long WINAPI libAVMemInputPin_Receive (libAVMemInputPin *, IMediaSample *); |
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long WINAPI libAVMemInputPin_ReceiveMultiple (libAVMemInputPin *, IMediaSample **, long, long *); |
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long WINAPI libAVMemInputPin_ReceiveCanBlock (libAVMemInputPin *); |
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void libAVPin_Destroy(libAVPin *); |
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libAVPin *libAVPin_Create (libAVFilter *filter); |
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void libAVMemInputPin_Destroy(libAVMemInputPin *); |
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/***************************************************************************** |
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* libAVEnumPins |
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****************************************************************************/ |
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struct libAVEnumPins { |
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IEnumPinsVtbl *vtbl; |
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long ref; |
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int pos; |
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libAVPin *pin; |
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libAVFilter *filter; |
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}; |
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long WINAPI libAVEnumPins_QueryInterface(libAVEnumPins *, const GUID *, void **); |
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unsigned long WINAPI libAVEnumPins_AddRef (libAVEnumPins *); |
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unsigned long WINAPI libAVEnumPins_Release (libAVEnumPins *); |
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long WINAPI libAVEnumPins_Next (libAVEnumPins *, unsigned long, IPin **, unsigned long *); |
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long WINAPI libAVEnumPins_Skip (libAVEnumPins *, unsigned long); |
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long WINAPI libAVEnumPins_Reset (libAVEnumPins *); |
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long WINAPI libAVEnumPins_Clone (libAVEnumPins *, libAVEnumPins **); |
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void libAVEnumPins_Destroy(libAVEnumPins *); |
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libAVEnumPins *libAVEnumPins_Create (libAVPin *pin, libAVFilter *filter); |
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/***************************************************************************** |
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* libAVEnumMediaTypes |
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****************************************************************************/ |
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struct libAVEnumMediaTypes { |
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IEnumPinsVtbl *vtbl; |
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long ref; |
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int pos; |
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AM_MEDIA_TYPE type; |
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}; |
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long WINAPI libAVEnumMediaTypes_QueryInterface(libAVEnumMediaTypes *, const GUID *, void **); |
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unsigned long WINAPI libAVEnumMediaTypes_AddRef (libAVEnumMediaTypes *); |
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unsigned long WINAPI libAVEnumMediaTypes_Release (libAVEnumMediaTypes *); |
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long WINAPI libAVEnumMediaTypes_Next (libAVEnumMediaTypes *, unsigned long, AM_MEDIA_TYPE **, unsigned long *); |
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long WINAPI libAVEnumMediaTypes_Skip (libAVEnumMediaTypes *, unsigned long); |
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long WINAPI libAVEnumMediaTypes_Reset (libAVEnumMediaTypes *); |
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long WINAPI libAVEnumMediaTypes_Clone (libAVEnumMediaTypes *, libAVEnumMediaTypes **); |
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void libAVEnumMediaTypes_Destroy(libAVEnumMediaTypes *); |
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libAVEnumMediaTypes *libAVEnumMediaTypes_Create(const AM_MEDIA_TYPE *type); |
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/***************************************************************************** |
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* libAVFilter |
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****************************************************************************/ |
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struct libAVFilter { |
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IBaseFilterVtbl *vtbl; |
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long ref; |
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const wchar_t *name; |
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libAVPin *pin; |
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FILTER_INFO info; |
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FILTER_STATE state; |
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IReferenceClock *clock; |
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enum dshowDeviceType type; |
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void *priv_data; |
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int stream_index; |
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int64_t start_time; |
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void (*callback)(void *priv_data, int index, uint8_t *buf, int buf_size, int64_t time); |
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}; |
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long WINAPI libAVFilter_QueryInterface (libAVFilter *, const GUID *, void **); |
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unsigned long WINAPI libAVFilter_AddRef (libAVFilter *); |
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unsigned long WINAPI libAVFilter_Release (libAVFilter *); |
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long WINAPI libAVFilter_GetClassID (libAVFilter *, CLSID *); |
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long WINAPI libAVFilter_Stop (libAVFilter *); |
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long WINAPI libAVFilter_Pause (libAVFilter *); |
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long WINAPI libAVFilter_Run (libAVFilter *, REFERENCE_TIME); |
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long WINAPI libAVFilter_GetState (libAVFilter *, DWORD, FILTER_STATE *); |
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long WINAPI libAVFilter_SetSyncSource (libAVFilter *, IReferenceClock *); |
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long WINAPI libAVFilter_GetSyncSource (libAVFilter *, IReferenceClock **); |
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long WINAPI libAVFilter_EnumPins (libAVFilter *, IEnumPins **); |
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long WINAPI libAVFilter_FindPin (libAVFilter *, const wchar_t *, IPin **); |
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long WINAPI libAVFilter_QueryFilterInfo(libAVFilter *, FILTER_INFO *); |
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long WINAPI libAVFilter_JoinFilterGraph(libAVFilter *, IFilterGraph *, const wchar_t *); |
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long WINAPI libAVFilter_QueryVendorInfo(libAVFilter *, wchar_t **); |
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void libAVFilter_Destroy(libAVFilter *); |
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libAVFilter *libAVFilter_Create (void *, void *, enum dshowDeviceType);
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