mirror of
https://github.com/FFmpeg/FFmpeg.git
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d422b2ed87
The next pointer is kept at the end for backwards compatability until the major bump, when it should ideally be moved at the front. Signed-off-by: James Almer <jamrial@gmail.com>
356 lines
16 KiB
C
356 lines
16 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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#ifndef AVDEVICE_DSHOW_CAPTURE_H
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#define AVDEVICE_DSHOW_CAPTURE_H
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#define DSHOWDEBUG 0
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#include "avdevice.h"
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#define COBJMACROS
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#define NO_DSHOW_STRSAFE
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#include <dshow.h>
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#include <dvdmedia.h>
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#include "libavcodec/internal.h"
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#include "libavcodec/packet_internal.h"
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/* EC_DEVICE_LOST is not defined in MinGW dshow headers. */
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#ifndef EC_DEVICE_LOST
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#define EC_DEVICE_LOST 0x1f
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#endif
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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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extern const AVClass *ff_dshow_context_class_ptr;
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#define dshowdebug(...) ff_dlog(&ff_dshow_context_class_ptr, __VA_ARGS__)
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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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enum dshowSourceFilterType {
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VideoSourceDevice = 0,
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AudioSourceDevice = 1,
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};
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#define DECLARE_QUERYINTERFACE(prefix, class, ...) \
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long \
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ff_dshow_##prefix##_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("ff_dshow_"AV_STRINGIFY(prefix)"_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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ff_dshow_##prefix##_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(prefix, class) \
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unsigned long \
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ff_dshow_##prefix##_AddRef(class *this) \
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{ \
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dshowdebug("ff_dshow_"AV_STRINGIFY(prefix)"_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(prefix, class) \
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unsigned long \
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ff_dshow_##prefix##_Release(class *this) \
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{ \
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long ref = InterlockedDecrement(&this->ref); \
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dshowdebug("ff_dshow_"AV_STRINGIFY(prefix)"_Release(%p)\t%ld\n", this, ref); \
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if (!ref) \
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ff_dshow_##prefix##_Destroy(this); \
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return ref; \
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}
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#define DECLARE_DESTROY(prefix, class, func) \
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void ff_dshow_##prefix##_Destroy(class *this) \
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{ \
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dshowdebug("ff_dshow_"AV_STRINGIFY(prefix)"_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(prefix, class, setup, ...) \
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class *ff_dshow_##prefix##_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("ff_dshow_"AV_STRINGIFY(prefix)"_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 ff_dshow_"AV_STRINGIFY(prefix)" %p\n", this); \
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return this; \
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fail: \
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ff_dshow_##prefix##_Destroy(this); \
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dshowdebug("could not create ff_dshow_"AV_STRINGIFY(prefix)"\n"); \
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return NULL; \
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}
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#define SETVTBL(vtbl, prefix, fn) \
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do { (vtbl)->fn = (void *) ff_dshow_##prefix##_##fn; } while(0)
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/*****************************************************************************
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* Forward Declarations
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****************************************************************************/
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typedef struct DShowPin DShowPin;
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typedef struct DShowMemInputPin DShowMemInputPin;
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typedef struct DShowEnumPins DShowEnumPins;
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typedef struct DShowEnumMediaTypes DShowEnumMediaTypes;
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typedef struct DShowFilter DShowFilter;
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/*****************************************************************************
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* DShowPin
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****************************************************************************/
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struct DShowPin {
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IPinVtbl *vtbl;
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long ref;
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DShowFilter *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 ff_dshow_pin_QueryInterface (DShowPin *, const GUID *, void **);
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unsigned long ff_dshow_pin_AddRef (DShowPin *);
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unsigned long ff_dshow_pin_Release (DShowPin *);
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long ff_dshow_pin_Connect (DShowPin *, IPin *, const AM_MEDIA_TYPE *);
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long ff_dshow_pin_ReceiveConnection (DShowPin *, IPin *, const AM_MEDIA_TYPE *);
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long ff_dshow_pin_Disconnect (DShowPin *);
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long ff_dshow_pin_ConnectedTo (DShowPin *, IPin **);
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long ff_dshow_pin_ConnectionMediaType (DShowPin *, AM_MEDIA_TYPE *);
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long ff_dshow_pin_QueryPinInfo (DShowPin *, PIN_INFO *);
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long ff_dshow_pin_QueryDirection (DShowPin *, PIN_DIRECTION *);
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long ff_dshow_pin_QueryId (DShowPin *, wchar_t **);
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long ff_dshow_pin_QueryAccept (DShowPin *, const AM_MEDIA_TYPE *);
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long ff_dshow_pin_EnumMediaTypes (DShowPin *, IEnumMediaTypes **);
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long ff_dshow_pin_QueryInternalConnections(DShowPin *, IPin **, unsigned long *);
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long ff_dshow_pin_EndOfStream (DShowPin *);
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long ff_dshow_pin_BeginFlush (DShowPin *);
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long ff_dshow_pin_EndFlush (DShowPin *);
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long ff_dshow_pin_NewSegment (DShowPin *, REFERENCE_TIME, REFERENCE_TIME, double);
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long ff_dshow_meminputpin_QueryInterface (DShowMemInputPin *, const GUID *, void **);
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unsigned long ff_dshow_meminputpin_AddRef (DShowMemInputPin *);
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unsigned long ff_dshow_meminputpin_Release (DShowMemInputPin *);
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long ff_dshow_meminputpin_GetAllocator (DShowMemInputPin *, IMemAllocator **);
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long ff_dshow_meminputpin_NotifyAllocator (DShowMemInputPin *, IMemAllocator *, BOOL);
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long ff_dshow_meminputpin_GetAllocatorRequirements(DShowMemInputPin *, ALLOCATOR_PROPERTIES *);
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long ff_dshow_meminputpin_Receive (DShowMemInputPin *, IMediaSample *);
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long ff_dshow_meminputpin_ReceiveMultiple (DShowMemInputPin *, IMediaSample **, long, long *);
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long ff_dshow_meminputpin_ReceiveCanBlock (DShowMemInputPin *);
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void ff_dshow_pin_Destroy(DShowPin *);
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DShowPin *ff_dshow_pin_Create (DShowFilter *filter);
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void ff_dshow_meminputpin_Destroy(DShowMemInputPin *);
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/*****************************************************************************
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* DShowEnumPins
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****************************************************************************/
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struct DShowEnumPins {
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IEnumPinsVtbl *vtbl;
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long ref;
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int pos;
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DShowPin *pin;
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DShowFilter *filter;
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};
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long ff_dshow_enumpins_QueryInterface(DShowEnumPins *, const GUID *, void **);
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unsigned long ff_dshow_enumpins_AddRef (DShowEnumPins *);
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unsigned long ff_dshow_enumpins_Release (DShowEnumPins *);
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long ff_dshow_enumpins_Next (DShowEnumPins *, unsigned long, IPin **, unsigned long *);
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long ff_dshow_enumpins_Skip (DShowEnumPins *, unsigned long);
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long ff_dshow_enumpins_Reset (DShowEnumPins *);
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long ff_dshow_enumpins_Clone (DShowEnumPins *, DShowEnumPins **);
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void ff_dshow_enumpins_Destroy(DShowEnumPins *);
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DShowEnumPins *ff_dshow_enumpins_Create (DShowPin *pin, DShowFilter *filter);
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/*****************************************************************************
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* DShowEnumMediaTypes
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****************************************************************************/
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struct DShowEnumMediaTypes {
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IEnumMediaTypesVtbl *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 ff_dshow_enummediatypes_QueryInterface(DShowEnumMediaTypes *, const GUID *, void **);
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unsigned long ff_dshow_enummediatypes_AddRef (DShowEnumMediaTypes *);
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unsigned long ff_dshow_enummediatypes_Release (DShowEnumMediaTypes *);
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long ff_dshow_enummediatypes_Next (DShowEnumMediaTypes *, unsigned long, AM_MEDIA_TYPE **, unsigned long *);
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long ff_dshow_enummediatypes_Skip (DShowEnumMediaTypes *, unsigned long);
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long ff_dshow_enummediatypes_Reset (DShowEnumMediaTypes *);
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long ff_dshow_enummediatypes_Clone (DShowEnumMediaTypes *, DShowEnumMediaTypes **);
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void ff_dshow_enummediatypes_Destroy(DShowEnumMediaTypes *);
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DShowEnumMediaTypes *ff_dshow_enummediatypes_Create(const AM_MEDIA_TYPE *type);
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/*****************************************************************************
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* DShowFilter
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****************************************************************************/
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struct DShowFilter {
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IBaseFilterVtbl *vtbl;
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long ref;
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const wchar_t *name;
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DShowPin *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, enum dshowDeviceType type);
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};
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long ff_dshow_filter_QueryInterface (DShowFilter *, const GUID *, void **);
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unsigned long ff_dshow_filter_AddRef (DShowFilter *);
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unsigned long ff_dshow_filter_Release (DShowFilter *);
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long ff_dshow_filter_GetClassID (DShowFilter *, CLSID *);
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long ff_dshow_filter_Stop (DShowFilter *);
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long ff_dshow_filter_Pause (DShowFilter *);
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long ff_dshow_filter_Run (DShowFilter *, REFERENCE_TIME);
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long ff_dshow_filter_GetState (DShowFilter *, DWORD, FILTER_STATE *);
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long ff_dshow_filter_SetSyncSource (DShowFilter *, IReferenceClock *);
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long ff_dshow_filter_GetSyncSource (DShowFilter *, IReferenceClock **);
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long ff_dshow_filter_EnumPins (DShowFilter *, IEnumPins **);
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long ff_dshow_filter_FindPin (DShowFilter *, const wchar_t *, IPin **);
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long ff_dshow_filter_QueryFilterInfo(DShowFilter *, FILTER_INFO *);
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long ff_dshow_filter_JoinFilterGraph(DShowFilter *, IFilterGraph *, const wchar_t *);
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long ff_dshow_filter_QueryVendorInfo(DShowFilter *, wchar_t **);
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void ff_dshow_filter_Destroy(DShowFilter *);
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DShowFilter *ff_dshow_filter_Create (void *, void *, enum dshowDeviceType);
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/*****************************************************************************
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* dshow_ctx
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****************************************************************************/
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struct dshow_ctx {
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const AVClass *class;
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IGraphBuilder *graph;
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char *device_name[2];
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char *device_unique_name[2];
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int video_device_number;
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int audio_device_number;
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int list_options;
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int list_devices;
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int audio_buffer_size;
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int crossbar_video_input_pin_number;
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int crossbar_audio_input_pin_number;
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char *video_pin_name;
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char *audio_pin_name;
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int show_video_device_dialog;
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int show_audio_device_dialog;
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int show_video_crossbar_connection_dialog;
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int show_audio_crossbar_connection_dialog;
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int show_analog_tv_tuner_dialog;
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int show_analog_tv_tuner_audio_dialog;
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char *audio_filter_load_file;
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char *audio_filter_save_file;
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char *video_filter_load_file;
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char *video_filter_save_file;
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IBaseFilter *device_filter[2];
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IPin *device_pin[2];
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DShowFilter *capture_filter[2];
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DShowPin *capture_pin[2];
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HANDLE mutex;
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HANDLE event[2]; /* event[0] is set by DirectShow
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* event[1] is set by callback() */
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PacketList *pktl;
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int eof;
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int64_t curbufsize[2];
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unsigned int video_frame_num;
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IMediaControl *control;
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IMediaEvent *media_event;
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enum AVPixelFormat pixel_format;
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enum AVCodecID video_codec_id;
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char *framerate;
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int requested_width;
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int requested_height;
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AVRational requested_framerate;
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int sample_rate;
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int sample_size;
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int channels;
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};
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/*****************************************************************************
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* CrossBar
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****************************************************************************/
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HRESULT ff_dshow_try_setup_crossbar_options(ICaptureGraphBuilder2 *graph_builder2,
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IBaseFilter *device_filter, enum dshowDeviceType devtype, AVFormatContext *avctx);
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void ff_dshow_show_filter_properties(IBaseFilter *pFilter, AVFormatContext *avctx);
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#endif /* AVDEVICE_DSHOW_CAPTURE_H */
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