mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
274 lines
14 KiB
274 lines
14 KiB
/* |
|
* 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> |
|
|
|
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 */
|
|
|