280 lines
14 KiB
C
280 lines
14 KiB
C
/*
|
|
* 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
|
|
*/
|
|
|
|
#ifndef AVDEVICE_DSHOW_H
|
|
#define AVDEVICE_DSHOW_H
|
|
|
|
#define DSHOWDEBUG 0
|
|
|
|
#include "avdevice.h"
|
|
|
|
#define COBJMACROS
|
|
#include <windows.h>
|
|
#define NO_DSHOW_STRSAFE
|
|
#include <dshow.h>
|
|
#include <dvdmedia.h>
|
|
|
|
/* EC_DEVICE_LOST is not defined in MinGW dshow headers. */
|
|
#ifndef EC_DEVICE_LOST
|
|
#define EC_DEVICE_LOST 0x1f
|
|
#endif
|
|
|
|
long ff_copy_dshow_media_type(AM_MEDIA_TYPE *dst, const AM_MEDIA_TYPE *src);
|
|
void ff_print_VIDEO_STREAM_CONFIG_CAPS(const VIDEO_STREAM_CONFIG_CAPS *caps);
|
|
void ff_print_AUDIO_STREAM_CONFIG_CAPS(const AUDIO_STREAM_CONFIG_CAPS *caps);
|
|
void ff_print_AM_MEDIA_TYPE(const AM_MEDIA_TYPE *type);
|
|
void ff_printGUID(const GUID *g);
|
|
|
|
#if DSHOWDEBUG
|
|
extern const AVClass *ff_dshow_context_class_ptr;
|
|
#define dshowdebug(...) av_log(&ff_dshow_context_class_ptr, AV_LOG_DEBUG, __VA_ARGS__)
|
|
#else
|
|
#define dshowdebug(...)
|
|
#endif
|
|
|
|
static inline void nothing(void *foo)
|
|
{
|
|
}
|
|
|
|
struct GUIDoffset {
|
|
const GUID *iid;
|
|
int offset;
|
|
};
|
|
|
|
enum dshowDeviceType {
|
|
VideoDevice = 0,
|
|
AudioDevice = 1,
|
|
};
|
|
|
|
#define DECLARE_QUERYINTERFACE(class, ...) \
|
|
long WINAPI \
|
|
class##_QueryInterface(class *this, const GUID *riid, void **ppvObject) \
|
|
{ \
|
|
struct GUIDoffset ifaces[] = __VA_ARGS__; \
|
|
int i; \
|
|
dshowdebug(AV_STRINGIFY(class)"_QueryInterface(%p, %p, %p)\n", this, riid, ppvObject); \
|
|
ff_printGUID(riid); \
|
|
if (!ppvObject) \
|
|
return E_POINTER; \
|
|
for (i = 0; i < sizeof(ifaces)/sizeof(ifaces[0]); i++) { \
|
|
if (IsEqualGUID(riid, ifaces[i].iid)) { \
|
|
void *obj = (void *) ((uint8_t *) this + ifaces[i].offset); \
|
|
class##_AddRef(this); \
|
|
dshowdebug("\tfound %d with offset %d\n", i, ifaces[i].offset); \
|
|
*ppvObject = (void *) obj; \
|
|
return S_OK; \
|
|
} \
|
|
} \
|
|
dshowdebug("\tE_NOINTERFACE\n"); \
|
|
*ppvObject = NULL; \
|
|
return E_NOINTERFACE; \
|
|
}
|
|
#define DECLARE_ADDREF(class) \
|
|
unsigned long WINAPI \
|
|
class##_AddRef(class *this) \
|
|
{ \
|
|
dshowdebug(AV_STRINGIFY(class)"_AddRef(%p)\t%ld\n", this, this->ref+1); \
|
|
return InterlockedIncrement(&this->ref); \
|
|
}
|
|
#define DECLARE_RELEASE(class) \
|
|
unsigned long WINAPI \
|
|
class##_Release(class *this) \
|
|
{ \
|
|
long ref = InterlockedDecrement(&this->ref); \
|
|
dshowdebug(AV_STRINGIFY(class)"_Release(%p)\t%ld\n", this, ref); \
|
|
if (!ref) \
|
|
class##_Destroy(this); \
|
|
return ref; \
|
|
}
|
|
|
|
#define DECLARE_DESTROY(class, func) \
|
|
void class##_Destroy(class *this) \
|
|
{ \
|
|
dshowdebug(AV_STRINGIFY(class)"_Destroy(%p)\n", this); \
|
|
func(this); \
|
|
if (this) { \
|
|
if (this->vtbl) \
|
|
CoTaskMemFree(this->vtbl); \
|
|
CoTaskMemFree(this); \
|
|
} \
|
|
}
|
|
#define DECLARE_CREATE(class, setup, ...) \
|
|
class *class##_Create(__VA_ARGS__) \
|
|
{ \
|
|
class *this = CoTaskMemAlloc(sizeof(class)); \
|
|
void *vtbl = CoTaskMemAlloc(sizeof(*this->vtbl)); \
|
|
dshowdebug(AV_STRINGIFY(class)"_Create(%p)\n", this); \
|
|
if (!this || !vtbl) \
|
|
goto fail; \
|
|
ZeroMemory(this, sizeof(class)); \
|
|
ZeroMemory(vtbl, sizeof(*this->vtbl)); \
|
|
this->ref = 1; \
|
|
this->vtbl = vtbl; \
|
|
if (!setup) \
|
|
goto fail; \
|
|
dshowdebug("created "AV_STRINGIFY(class)" %p\n", this); \
|
|
return this; \
|
|
fail: \
|
|
class##_Destroy(this); \
|
|
dshowdebug("could not create "AV_STRINGIFY(class)"\n"); \
|
|
return NULL; \
|
|
}
|
|
|
|
#define SETVTBL(vtbl, class, fn) \
|
|
do { (vtbl)->fn = (void *) class##_##fn; } while(0)
|
|
|
|
/*****************************************************************************
|
|
* Forward Declarations
|
|
****************************************************************************/
|
|
typedef struct libAVPin libAVPin;
|
|
typedef struct libAVMemInputPin libAVMemInputPin;
|
|
typedef struct libAVEnumPins libAVEnumPins;
|
|
typedef struct libAVEnumMediaTypes libAVEnumMediaTypes;
|
|
typedef struct libAVFilter libAVFilter;
|
|
|
|
/*****************************************************************************
|
|
* libAVPin
|
|
****************************************************************************/
|
|
struct libAVPin {
|
|
IPinVtbl *vtbl;
|
|
long ref;
|
|
libAVFilter *filter;
|
|
IPin *connectedto;
|
|
AM_MEDIA_TYPE type;
|
|
IMemInputPinVtbl *imemvtbl;
|
|
};
|
|
|
|
long WINAPI libAVPin_QueryInterface (libAVPin *, const GUID *, void **);
|
|
unsigned long WINAPI libAVPin_AddRef (libAVPin *);
|
|
unsigned long WINAPI libAVPin_Release (libAVPin *);
|
|
long WINAPI libAVPin_Connect (libAVPin *, IPin *, const AM_MEDIA_TYPE *);
|
|
long WINAPI libAVPin_ReceiveConnection (libAVPin *, IPin *, const AM_MEDIA_TYPE *);
|
|
long WINAPI libAVPin_Disconnect (libAVPin *);
|
|
long WINAPI libAVPin_ConnectedTo (libAVPin *, IPin **);
|
|
long WINAPI libAVPin_ConnectionMediaType (libAVPin *, AM_MEDIA_TYPE *);
|
|
long WINAPI libAVPin_QueryPinInfo (libAVPin *, PIN_INFO *);
|
|
long WINAPI libAVPin_QueryDirection (libAVPin *, PIN_DIRECTION *);
|
|
long WINAPI libAVPin_QueryId (libAVPin *, wchar_t **);
|
|
long WINAPI libAVPin_QueryAccept (libAVPin *, const AM_MEDIA_TYPE *);
|
|
long WINAPI libAVPin_EnumMediaTypes (libAVPin *, IEnumMediaTypes **);
|
|
long WINAPI libAVPin_QueryInternalConnections(libAVPin *, IPin **, unsigned long *);
|
|
long WINAPI libAVPin_EndOfStream (libAVPin *);
|
|
long WINAPI libAVPin_BeginFlush (libAVPin *);
|
|
long WINAPI libAVPin_EndFlush (libAVPin *);
|
|
long WINAPI libAVPin_NewSegment (libAVPin *, REFERENCE_TIME, REFERENCE_TIME, double);
|
|
|
|
long WINAPI libAVMemInputPin_QueryInterface (libAVMemInputPin *, const GUID *, void **);
|
|
unsigned long WINAPI libAVMemInputPin_AddRef (libAVMemInputPin *);
|
|
unsigned long WINAPI libAVMemInputPin_Release (libAVMemInputPin *);
|
|
long WINAPI libAVMemInputPin_GetAllocator (libAVMemInputPin *, IMemAllocator **);
|
|
long WINAPI libAVMemInputPin_NotifyAllocator (libAVMemInputPin *, IMemAllocator *, BOOL);
|
|
long WINAPI libAVMemInputPin_GetAllocatorRequirements(libAVMemInputPin *, ALLOCATOR_PROPERTIES *);
|
|
long WINAPI libAVMemInputPin_Receive (libAVMemInputPin *, IMediaSample *);
|
|
long WINAPI libAVMemInputPin_ReceiveMultiple (libAVMemInputPin *, IMediaSample **, long, long *);
|
|
long WINAPI libAVMemInputPin_ReceiveCanBlock (libAVMemInputPin *);
|
|
|
|
void libAVPin_Destroy(libAVPin *);
|
|
libAVPin *libAVPin_Create (libAVFilter *filter);
|
|
|
|
void libAVMemInputPin_Destroy(libAVMemInputPin *);
|
|
|
|
/*****************************************************************************
|
|
* libAVEnumPins
|
|
****************************************************************************/
|
|
struct libAVEnumPins {
|
|
IEnumPinsVtbl *vtbl;
|
|
long ref;
|
|
int pos;
|
|
libAVPin *pin;
|
|
libAVFilter *filter;
|
|
};
|
|
|
|
long WINAPI libAVEnumPins_QueryInterface(libAVEnumPins *, const GUID *, void **);
|
|
unsigned long WINAPI libAVEnumPins_AddRef (libAVEnumPins *);
|
|
unsigned long WINAPI libAVEnumPins_Release (libAVEnumPins *);
|
|
long WINAPI libAVEnumPins_Next (libAVEnumPins *, unsigned long, IPin **, unsigned long *);
|
|
long WINAPI libAVEnumPins_Skip (libAVEnumPins *, unsigned long);
|
|
long WINAPI libAVEnumPins_Reset (libAVEnumPins *);
|
|
long WINAPI libAVEnumPins_Clone (libAVEnumPins *, libAVEnumPins **);
|
|
|
|
void libAVEnumPins_Destroy(libAVEnumPins *);
|
|
libAVEnumPins *libAVEnumPins_Create (libAVPin *pin, libAVFilter *filter);
|
|
|
|
/*****************************************************************************
|
|
* libAVEnumMediaTypes
|
|
****************************************************************************/
|
|
struct libAVEnumMediaTypes {
|
|
IEnumPinsVtbl *vtbl;
|
|
long ref;
|
|
int pos;
|
|
AM_MEDIA_TYPE type;
|
|
};
|
|
|
|
long WINAPI libAVEnumMediaTypes_QueryInterface(libAVEnumMediaTypes *, const GUID *, void **);
|
|
unsigned long WINAPI libAVEnumMediaTypes_AddRef (libAVEnumMediaTypes *);
|
|
unsigned long WINAPI libAVEnumMediaTypes_Release (libAVEnumMediaTypes *);
|
|
long WINAPI libAVEnumMediaTypes_Next (libAVEnumMediaTypes *, unsigned long, AM_MEDIA_TYPE **, unsigned long *);
|
|
long WINAPI libAVEnumMediaTypes_Skip (libAVEnumMediaTypes *, unsigned long);
|
|
long WINAPI libAVEnumMediaTypes_Reset (libAVEnumMediaTypes *);
|
|
long WINAPI libAVEnumMediaTypes_Clone (libAVEnumMediaTypes *, libAVEnumMediaTypes **);
|
|
|
|
void libAVEnumMediaTypes_Destroy(libAVEnumMediaTypes *);
|
|
libAVEnumMediaTypes *libAVEnumMediaTypes_Create(const AM_MEDIA_TYPE *type);
|
|
|
|
/*****************************************************************************
|
|
* libAVFilter
|
|
****************************************************************************/
|
|
struct libAVFilter {
|
|
IBaseFilterVtbl *vtbl;
|
|
long ref;
|
|
const wchar_t *name;
|
|
libAVPin *pin;
|
|
FILTER_INFO info;
|
|
FILTER_STATE state;
|
|
IReferenceClock *clock;
|
|
enum dshowDeviceType type;
|
|
void *priv_data;
|
|
int stream_index;
|
|
int64_t start_time;
|
|
void (*callback)(void *priv_data, int index, uint8_t *buf, int buf_size, int64_t time);
|
|
};
|
|
|
|
long WINAPI libAVFilter_QueryInterface (libAVFilter *, const GUID *, void **);
|
|
unsigned long WINAPI libAVFilter_AddRef (libAVFilter *);
|
|
unsigned long WINAPI libAVFilter_Release (libAVFilter *);
|
|
long WINAPI libAVFilter_GetClassID (libAVFilter *, CLSID *);
|
|
long WINAPI libAVFilter_Stop (libAVFilter *);
|
|
long WINAPI libAVFilter_Pause (libAVFilter *);
|
|
long WINAPI libAVFilter_Run (libAVFilter *, REFERENCE_TIME);
|
|
long WINAPI libAVFilter_GetState (libAVFilter *, DWORD, FILTER_STATE *);
|
|
long WINAPI libAVFilter_SetSyncSource (libAVFilter *, IReferenceClock *);
|
|
long WINAPI libAVFilter_GetSyncSource (libAVFilter *, IReferenceClock **);
|
|
long WINAPI libAVFilter_EnumPins (libAVFilter *, IEnumPins **);
|
|
long WINAPI libAVFilter_FindPin (libAVFilter *, const wchar_t *, IPin **);
|
|
long WINAPI libAVFilter_QueryFilterInfo(libAVFilter *, FILTER_INFO *);
|
|
long WINAPI libAVFilter_JoinFilterGraph(libAVFilter *, IFilterGraph *, const wchar_t *);
|
|
long WINAPI libAVFilter_QueryVendorInfo(libAVFilter *, wchar_t **);
|
|
|
|
void libAVFilter_Destroy(libAVFilter *);
|
|
libAVFilter *libAVFilter_Create (void *, void *, enum dshowDeviceType);
|
|
|
|
#endif /* AVDEVICE_DSHOW_H */
|