yading@10: /* yading@10: * DirectShow capture interface yading@10: * Copyright (c) 2010 Ramiro Polla yading@10: * yading@10: * This file is part of FFmpeg. yading@10: * yading@10: * FFmpeg is free software; you can redistribute it and/or yading@10: * modify it under the terms of the GNU Lesser General Public yading@10: * License as published by the Free Software Foundation; either yading@10: * version 2.1 of the License, or (at your option) any later version. yading@10: * yading@10: * FFmpeg is distributed in the hope that it will be useful, yading@10: * but WITHOUT ANY WARRANTY; without even the implied warranty of yading@10: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU yading@10: * Lesser General Public License for more details. yading@10: * yading@10: * You should have received a copy of the GNU Lesser General Public yading@10: * License along with FFmpeg; if not, write to the Free Software yading@10: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA yading@10: */ yading@10: yading@10: #ifndef AVDEVICE_DSHOW_H yading@10: #define AVDEVICE_DSHOW_H yading@10: yading@10: #define DSHOWDEBUG 0 yading@10: yading@10: #include "avdevice.h" yading@10: yading@10: #define COBJMACROS yading@10: #include yading@10: #define NO_DSHOW_STRSAFE yading@10: #include yading@10: #include yading@10: yading@10: /* EC_DEVICE_LOST is not defined in MinGW dshow headers. */ yading@10: #ifndef EC_DEVICE_LOST yading@10: #define EC_DEVICE_LOST 0x1f yading@10: #endif yading@10: yading@10: long ff_copy_dshow_media_type(AM_MEDIA_TYPE *dst, const AM_MEDIA_TYPE *src); yading@10: void ff_print_VIDEO_STREAM_CONFIG_CAPS(const VIDEO_STREAM_CONFIG_CAPS *caps); yading@10: void ff_print_AUDIO_STREAM_CONFIG_CAPS(const AUDIO_STREAM_CONFIG_CAPS *caps); yading@10: void ff_print_AM_MEDIA_TYPE(const AM_MEDIA_TYPE *type); yading@10: void ff_printGUID(const GUID *g); yading@10: yading@10: #if DSHOWDEBUG yading@10: extern const AVClass *ff_dshow_context_class_ptr; yading@10: #define dshowdebug(...) av_log(&ff_dshow_context_class_ptr, AV_LOG_DEBUG, __VA_ARGS__) yading@10: #else yading@10: #define dshowdebug(...) yading@10: #endif yading@10: yading@10: static inline void nothing(void *foo) yading@10: { yading@10: } yading@10: yading@10: struct GUIDoffset { yading@10: const GUID *iid; yading@10: int offset; yading@10: }; yading@10: yading@10: enum dshowDeviceType { yading@10: VideoDevice = 0, yading@10: AudioDevice = 1, yading@10: }; yading@10: yading@10: #define DECLARE_QUERYINTERFACE(class, ...) \ yading@10: long WINAPI \ yading@10: class##_QueryInterface(class *this, const GUID *riid, void **ppvObject) \ yading@10: { \ yading@10: struct GUIDoffset ifaces[] = __VA_ARGS__; \ yading@10: int i; \ yading@10: dshowdebug(AV_STRINGIFY(class)"_QueryInterface(%p, %p, %p)\n", this, riid, ppvObject); \ yading@10: ff_printGUID(riid); \ yading@10: if (!ppvObject) \ yading@10: return E_POINTER; \ yading@10: for (i = 0; i < sizeof(ifaces)/sizeof(ifaces[0]); i++) { \ yading@10: if (IsEqualGUID(riid, ifaces[i].iid)) { \ yading@10: void *obj = (void *) ((uint8_t *) this + ifaces[i].offset); \ yading@10: class##_AddRef(this); \ yading@10: dshowdebug("\tfound %d with offset %d\n", i, ifaces[i].offset); \ yading@10: *ppvObject = (void *) obj; \ yading@10: return S_OK; \ yading@10: } \ yading@10: } \ yading@10: dshowdebug("\tE_NOINTERFACE\n"); \ yading@10: *ppvObject = NULL; \ yading@10: return E_NOINTERFACE; \ yading@10: } yading@10: #define DECLARE_ADDREF(class) \ yading@10: unsigned long WINAPI \ yading@10: class##_AddRef(class *this) \ yading@10: { \ yading@10: dshowdebug(AV_STRINGIFY(class)"_AddRef(%p)\t%ld\n", this, this->ref+1); \ yading@10: return InterlockedIncrement(&this->ref); \ yading@10: } yading@10: #define DECLARE_RELEASE(class) \ yading@10: unsigned long WINAPI \ yading@10: class##_Release(class *this) \ yading@10: { \ yading@10: long ref = InterlockedDecrement(&this->ref); \ yading@10: dshowdebug(AV_STRINGIFY(class)"_Release(%p)\t%ld\n", this, ref); \ yading@10: if (!ref) \ yading@10: class##_Destroy(this); \ yading@10: return ref; \ yading@10: } yading@10: yading@10: #define DECLARE_DESTROY(class, func) \ yading@10: void class##_Destroy(class *this) \ yading@10: { \ yading@10: dshowdebug(AV_STRINGIFY(class)"_Destroy(%p)\n", this); \ yading@10: func(this); \ yading@10: if (this) { \ yading@10: if (this->vtbl) \ yading@10: CoTaskMemFree(this->vtbl); \ yading@10: CoTaskMemFree(this); \ yading@10: } \ yading@10: } yading@10: #define DECLARE_CREATE(class, setup, ...) \ yading@10: class *class##_Create(__VA_ARGS__) \ yading@10: { \ yading@10: class *this = CoTaskMemAlloc(sizeof(class)); \ yading@10: void *vtbl = CoTaskMemAlloc(sizeof(*this->vtbl)); \ yading@10: dshowdebug(AV_STRINGIFY(class)"_Create(%p)\n", this); \ yading@10: if (!this || !vtbl) \ yading@10: goto fail; \ yading@10: ZeroMemory(this, sizeof(class)); \ yading@10: ZeroMemory(vtbl, sizeof(*this->vtbl)); \ yading@10: this->ref = 1; \ yading@10: this->vtbl = vtbl; \ yading@10: if (!setup) \ yading@10: goto fail; \ yading@10: dshowdebug("created "AV_STRINGIFY(class)" %p\n", this); \ yading@10: return this; \ yading@10: fail: \ yading@10: class##_Destroy(this); \ yading@10: dshowdebug("could not create "AV_STRINGIFY(class)"\n"); \ yading@10: return NULL; \ yading@10: } yading@10: yading@10: #define SETVTBL(vtbl, class, fn) \ yading@10: do { (vtbl)->fn = (void *) class##_##fn; } while(0) yading@10: yading@10: /***************************************************************************** yading@10: * Forward Declarations yading@10: ****************************************************************************/ yading@10: typedef struct libAVPin libAVPin; yading@10: typedef struct libAVMemInputPin libAVMemInputPin; yading@10: typedef struct libAVEnumPins libAVEnumPins; yading@10: typedef struct libAVEnumMediaTypes libAVEnumMediaTypes; yading@10: typedef struct libAVFilter libAVFilter; yading@10: yading@10: /***************************************************************************** yading@10: * libAVPin yading@10: ****************************************************************************/ yading@10: struct libAVPin { yading@10: IPinVtbl *vtbl; yading@10: long ref; yading@10: libAVFilter *filter; yading@10: IPin *connectedto; yading@10: AM_MEDIA_TYPE type; yading@10: IMemInputPinVtbl *imemvtbl; yading@10: }; yading@10: yading@10: long WINAPI libAVPin_QueryInterface (libAVPin *, const GUID *, void **); yading@10: unsigned long WINAPI libAVPin_AddRef (libAVPin *); yading@10: unsigned long WINAPI libAVPin_Release (libAVPin *); yading@10: long WINAPI libAVPin_Connect (libAVPin *, IPin *, const AM_MEDIA_TYPE *); yading@10: long WINAPI libAVPin_ReceiveConnection (libAVPin *, IPin *, const AM_MEDIA_TYPE *); yading@10: long WINAPI libAVPin_Disconnect (libAVPin *); yading@10: long WINAPI libAVPin_ConnectedTo (libAVPin *, IPin **); yading@10: long WINAPI libAVPin_ConnectionMediaType (libAVPin *, AM_MEDIA_TYPE *); yading@10: long WINAPI libAVPin_QueryPinInfo (libAVPin *, PIN_INFO *); yading@10: long WINAPI libAVPin_QueryDirection (libAVPin *, PIN_DIRECTION *); yading@10: long WINAPI libAVPin_QueryId (libAVPin *, wchar_t **); yading@10: long WINAPI libAVPin_QueryAccept (libAVPin *, const AM_MEDIA_TYPE *); yading@10: long WINAPI libAVPin_EnumMediaTypes (libAVPin *, IEnumMediaTypes **); yading@10: long WINAPI libAVPin_QueryInternalConnections(libAVPin *, IPin **, unsigned long *); yading@10: long WINAPI libAVPin_EndOfStream (libAVPin *); yading@10: long WINAPI libAVPin_BeginFlush (libAVPin *); yading@10: long WINAPI libAVPin_EndFlush (libAVPin *); yading@10: long WINAPI libAVPin_NewSegment (libAVPin *, REFERENCE_TIME, REFERENCE_TIME, double); yading@10: yading@10: long WINAPI libAVMemInputPin_QueryInterface (libAVMemInputPin *, const GUID *, void **); yading@10: unsigned long WINAPI libAVMemInputPin_AddRef (libAVMemInputPin *); yading@10: unsigned long WINAPI libAVMemInputPin_Release (libAVMemInputPin *); yading@10: long WINAPI libAVMemInputPin_GetAllocator (libAVMemInputPin *, IMemAllocator **); yading@10: long WINAPI libAVMemInputPin_NotifyAllocator (libAVMemInputPin *, IMemAllocator *, BOOL); yading@10: long WINAPI libAVMemInputPin_GetAllocatorRequirements(libAVMemInputPin *, ALLOCATOR_PROPERTIES *); yading@10: long WINAPI libAVMemInputPin_Receive (libAVMemInputPin *, IMediaSample *); yading@10: long WINAPI libAVMemInputPin_ReceiveMultiple (libAVMemInputPin *, IMediaSample **, long, long *); yading@10: long WINAPI libAVMemInputPin_ReceiveCanBlock (libAVMemInputPin *); yading@10: yading@10: void libAVPin_Destroy(libAVPin *); yading@10: libAVPin *libAVPin_Create (libAVFilter *filter); yading@10: yading@10: void libAVMemInputPin_Destroy(libAVMemInputPin *); yading@10: yading@10: /***************************************************************************** yading@10: * libAVEnumPins yading@10: ****************************************************************************/ yading@10: struct libAVEnumPins { yading@10: IEnumPinsVtbl *vtbl; yading@10: long ref; yading@10: int pos; yading@10: libAVPin *pin; yading@10: libAVFilter *filter; yading@10: }; yading@10: yading@10: long WINAPI libAVEnumPins_QueryInterface(libAVEnumPins *, const GUID *, void **); yading@10: unsigned long WINAPI libAVEnumPins_AddRef (libAVEnumPins *); yading@10: unsigned long WINAPI libAVEnumPins_Release (libAVEnumPins *); yading@10: long WINAPI libAVEnumPins_Next (libAVEnumPins *, unsigned long, IPin **, unsigned long *); yading@10: long WINAPI libAVEnumPins_Skip (libAVEnumPins *, unsigned long); yading@10: long WINAPI libAVEnumPins_Reset (libAVEnumPins *); yading@10: long WINAPI libAVEnumPins_Clone (libAVEnumPins *, libAVEnumPins **); yading@10: yading@10: void libAVEnumPins_Destroy(libAVEnumPins *); yading@10: libAVEnumPins *libAVEnumPins_Create (libAVPin *pin, libAVFilter *filter); yading@10: yading@10: /***************************************************************************** yading@10: * libAVEnumMediaTypes yading@10: ****************************************************************************/ yading@10: struct libAVEnumMediaTypes { yading@10: IEnumPinsVtbl *vtbl; yading@10: long ref; yading@10: int pos; yading@10: AM_MEDIA_TYPE type; yading@10: }; yading@10: yading@10: long WINAPI libAVEnumMediaTypes_QueryInterface(libAVEnumMediaTypes *, const GUID *, void **); yading@10: unsigned long WINAPI libAVEnumMediaTypes_AddRef (libAVEnumMediaTypes *); yading@10: unsigned long WINAPI libAVEnumMediaTypes_Release (libAVEnumMediaTypes *); yading@10: long WINAPI libAVEnumMediaTypes_Next (libAVEnumMediaTypes *, unsigned long, AM_MEDIA_TYPE **, unsigned long *); yading@10: long WINAPI libAVEnumMediaTypes_Skip (libAVEnumMediaTypes *, unsigned long); yading@10: long WINAPI libAVEnumMediaTypes_Reset (libAVEnumMediaTypes *); yading@10: long WINAPI libAVEnumMediaTypes_Clone (libAVEnumMediaTypes *, libAVEnumMediaTypes **); yading@10: yading@10: void libAVEnumMediaTypes_Destroy(libAVEnumMediaTypes *); yading@10: libAVEnumMediaTypes *libAVEnumMediaTypes_Create(const AM_MEDIA_TYPE *type); yading@10: yading@10: /***************************************************************************** yading@10: * libAVFilter yading@10: ****************************************************************************/ yading@10: struct libAVFilter { yading@10: IBaseFilterVtbl *vtbl; yading@10: long ref; yading@10: const wchar_t *name; yading@10: libAVPin *pin; yading@10: FILTER_INFO info; yading@10: FILTER_STATE state; yading@10: IReferenceClock *clock; yading@10: enum dshowDeviceType type; yading@10: void *priv_data; yading@10: int stream_index; yading@10: int64_t start_time; yading@10: void (*callback)(void *priv_data, int index, uint8_t *buf, int buf_size, int64_t time); yading@10: }; yading@10: yading@10: long WINAPI libAVFilter_QueryInterface (libAVFilter *, const GUID *, void **); yading@10: unsigned long WINAPI libAVFilter_AddRef (libAVFilter *); yading@10: unsigned long WINAPI libAVFilter_Release (libAVFilter *); yading@10: long WINAPI libAVFilter_GetClassID (libAVFilter *, CLSID *); yading@10: long WINAPI libAVFilter_Stop (libAVFilter *); yading@10: long WINAPI libAVFilter_Pause (libAVFilter *); yading@10: long WINAPI libAVFilter_Run (libAVFilter *, REFERENCE_TIME); yading@10: long WINAPI libAVFilter_GetState (libAVFilter *, DWORD, FILTER_STATE *); yading@10: long WINAPI libAVFilter_SetSyncSource (libAVFilter *, IReferenceClock *); yading@10: long WINAPI libAVFilter_GetSyncSource (libAVFilter *, IReferenceClock **); yading@10: long WINAPI libAVFilter_EnumPins (libAVFilter *, IEnumPins **); yading@10: long WINAPI libAVFilter_FindPin (libAVFilter *, const wchar_t *, IPin **); yading@10: long WINAPI libAVFilter_QueryFilterInfo(libAVFilter *, FILTER_INFO *); yading@10: long WINAPI libAVFilter_JoinFilterGraph(libAVFilter *, IFilterGraph *, const wchar_t *); yading@10: long WINAPI libAVFilter_QueryVendorInfo(libAVFilter *, wchar_t **); yading@10: yading@10: void libAVFilter_Destroy(libAVFilter *); yading@10: libAVFilter *libAVFilter_Create (void *, void *, enum dshowDeviceType); yading@10: yading@10: #endif /* AVDEVICE_DSHOW_H */