| /* |
| * 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_CAPTURE_H |
| #define AVDEVICE_DSHOW_CAPTURE_H |
| |
| #define DSHOWDEBUG 0 |
| |
| #include "avdevice.h" |
| |
| #define COBJMACROS |
| #define WIN32_LEAN_AND_MEAN |
| #include <windows.h> |
| #define NO_DSHOW_STRSAFE |
| #include <dshow.h> |
| #include <dvdmedia.h> |
| |
| #include "libavcodec/internal.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); |
| |
| extern const AVClass *ff_dshow_context_class_ptr; |
| #define dshowdebug(...) ff_dlog(&ff_dshow_context_class_ptr, __VA_ARGS__) |
| |
| static inline void nothing(void *foo) |
| { |
| } |
| |
| struct GUIDoffset { |
| const GUID *iid; |
| int offset; |
| }; |
| |
| enum dshowDeviceType { |
| VideoDevice = 0, |
| AudioDevice = 1, |
| }; |
| |
| enum dshowSourceFilterType { |
| VideoSourceDevice = 0, |
| AudioSourceDevice = 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 { |
| IEnumMediaTypesVtbl *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, enum dshowDeviceType type); |
| }; |
| |
| 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); |
| |
| /***************************************************************************** |
| * dshow_ctx |
| ****************************************************************************/ |
| struct dshow_ctx { |
| const AVClass *class; |
| |
| IGraphBuilder *graph; |
| |
| char *device_name[2]; |
| char *device_unique_name[2]; |
| |
| int video_device_number; |
| int audio_device_number; |
| |
| int list_options; |
| int list_devices; |
| int audio_buffer_size; |
| int crossbar_video_input_pin_number; |
| int crossbar_audio_input_pin_number; |
| char *video_pin_name; |
| char *audio_pin_name; |
| int show_video_device_dialog; |
| int show_audio_device_dialog; |
| int show_video_crossbar_connection_dialog; |
| int show_audio_crossbar_connection_dialog; |
| int show_analog_tv_tuner_dialog; |
| int show_analog_tv_tuner_audio_dialog; |
| char *audio_filter_load_file; |
| char *audio_filter_save_file; |
| char *video_filter_load_file; |
| char *video_filter_save_file; |
| |
| IBaseFilter *device_filter[2]; |
| IPin *device_pin[2]; |
| libAVFilter *capture_filter[2]; |
| libAVPin *capture_pin[2]; |
| |
| HANDLE mutex; |
| HANDLE event[2]; /* event[0] is set by DirectShow |
| * event[1] is set by callback() */ |
| AVPacketList *pktl; |
| |
| int eof; |
| |
| int64_t curbufsize[2]; |
| unsigned int video_frame_num; |
| |
| IMediaControl *control; |
| IMediaEvent *media_event; |
| |
| enum AVPixelFormat pixel_format; |
| enum AVCodecID video_codec_id; |
| char *framerate; |
| |
| int requested_width; |
| int requested_height; |
| AVRational requested_framerate; |
| |
| int sample_rate; |
| int sample_size; |
| int channels; |
| }; |
| |
| /***************************************************************************** |
| * CrossBar |
| ****************************************************************************/ |
| HRESULT dshow_try_setup_crossbar_options(ICaptureGraphBuilder2 *graph_builder2, |
| IBaseFilter *device_filter, enum dshowDeviceType devtype, AVFormatContext *avctx); |
| |
| void dshow_show_filter_properties(IBaseFilter *pFilter, AVFormatContext *avctx); |
| |
| #endif /* AVDEVICE_DSHOW_CAPTURE_H */ |
