QStringList VideoInput::list_devices_dshow(bool silent)
{
    if (!silent) { printf("\nVIDEOINPUT SPY MODE!\n\n"); }

    QStringList list;

#ifdef _MSC_VER
    ICreateDevEnum *pDevEnum = NULL;
    IEnumMoniker *pEnum = NULL;
    int deviceCounter = 0;
    
    HRESULT hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL,
        CLSCTX_INPROC_SERVER, IID_ICreateDevEnum,
        reinterpret_cast<void**>(&pDevEnum));

    if (SUCCEEDED(hr))
    {
        // Create an enumerator for the video capture category.
        hr = pDevEnum->CreateClassEnumerator(
            CLSID_VideoInputDeviceCategory,
            &pEnum, 0);

        if(hr == S_OK){

            if (!silent) { printf("SETUP: Looking For Capture Devices\n"); }
            IMoniker *pMoniker = NULL;

            while (pEnum->Next(1, &pMoniker, NULL) == S_OK){

                IPropertyBag *pPropBag;
                hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag,
                    (void**)(&pPropBag));

                if (FAILED(hr)){
                    pMoniker->Release();
                    continue;  // Skip this one, maybe the next one will work.
                }


                 // Find the description or friendly name.
                VARIANT varName;
                VariantInit(&varName);
                hr = pPropBag->Read(L"Description", &varName, 0);

                if (FAILED(hr)) hr = pPropBag->Read(L"FriendlyName", &varName, 0);

                if (SUCCEEDED(hr)){

                    hr = pPropBag->Read(L"FriendlyName", &varName, 0);

                    char deviceName[255] = {0};

                    int count = 0;
                    int maxLen = sizeof(deviceName)/sizeof(deviceName[0]) - 2;
                    while( varName.bstrVal[count] != 0x00 && count < maxLen) {
                        deviceName[count] = (char)varName.bstrVal[count];
                        count++;
                    }
                    deviceName[count] = 0;
                    list.append(deviceName);

                    if (!silent) { printf("SETUP: %i) %s \n",deviceCounter, deviceName); }
                }

                pPropBag->Release();
                pPropBag = NULL;

                pMoniker->Release();
                pMoniker = NULL;

                deviceCounter++;
            }

            pDevEnum->Release();
            pDevEnum = NULL;

            pEnum->Release();
            pEnum = NULL;
        }

         if (!silent) { printf("SETUP: %i Device(s) found\n\n", deviceCounter); }
    }
#endif //_MSC_VER

    return list;
}
Пример #2
0
static int get_device(struct vidsrc_st *st, const char *name)
{
	ICreateDevEnum *dev_enum;
	IEnumMoniker *enum_mon;
	IMoniker *mon;
	ULONG fetched;
	HRESULT res;
	int id = 0;
	bool found = false;

	if (!st)
		return EINVAL;

	res = CoCreateInstance(CLSID_SystemDeviceEnum, NULL,
			       CLSCTX_INPROC_SERVER,
			       IID_ICreateDevEnum, (void**)&dev_enum);
	if (res != NOERROR)
		return ENOENT;

	res = dev_enum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,
					      &enum_mon, 0);
	if (res != NOERROR)
		return ENOENT;

	enum_mon->Reset();
	while (enum_mon->Next(1, &mon, &fetched) == S_OK && !found) {

		IPropertyBag *bag;
		VARIANT var;
		char dev_name[256];
		int len = 0;

		res = mon->BindToStorage(0, 0, IID_IPropertyBag,
					 (void **)&bag);
		if (!SUCCEEDED(res))
			continue;

		var.vt = VT_BSTR;
		res = bag->Read(L"FriendlyName", &var, NULL);
		if (NOERROR != res)
			continue;

		len = WideCharToMultiByte(CP_ACP, 0, var.bstrVal, -1,
					  dev_name, sizeof(dev_name),
					  NULL, NULL);

		if (len > 0) {
			found = !str_isset(name) ||
				!str_casecmp(dev_name, name);

			if (found) {
				info("dshow: got device '%s' id=%d\n",
				     name, id);
				st->dev_moniker = mon;
			}
		}

		SysFreeString(var.bstrVal);
		bag->Release();
		if (!found) {
			mon->Release();
			++id;
		}
	}

	return found ? 0 : ENOENT;
}
Пример #3
0
static GstCaps *
gst_dshowvideosrc_get_caps (GstBaseSrc * basesrc)
{
  HRESULT hres = S_OK;
  IBindCtx *lpbc = NULL;
  IMoniker *videom;
  DWORD dwEaten;
  GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (basesrc);
  gunichar2 *unidevice = NULL;

  if (src->caps) {
    return gst_caps_ref (src->caps);
  }

  if (!src->device) {
    src->device =
        gst_dshow_getdevice_from_devicename (&CLSID_VideoInputDeviceCategory,
        &src->device_name);
    if (!src->device) {
      GST_ERROR ("No video device found.");
      return NULL;
    }
  }

  unidevice =
      g_utf8_to_utf16 (src->device, strlen (src->device), NULL, NULL, NULL);

  if (!src->video_cap_filter) {
    hres = CreateBindCtx (0, &lpbc);
    if (SUCCEEDED (hres)) {
      hres =
          MkParseDisplayName (lpbc, (LPCOLESTR) unidevice, &dwEaten, &videom);
      if (SUCCEEDED (hres)) {
        hres = videom->BindToObject (lpbc, NULL, IID_IBaseFilter,
            (LPVOID *) & src->video_cap_filter);
        videom->Release ();
      }
      lpbc->Release ();
    }
  }

  if (!src->caps) {
    src->caps = gst_caps_new_empty ();
  }

  if (src->video_cap_filter && gst_caps_is_empty (src->caps)) {
    /* get the capture pins supported types */
    IPin *capture_pin = NULL;
    IEnumPins *enumpins = NULL;
    HRESULT hres;

    hres = src->video_cap_filter->EnumPins (&enumpins);
    if (SUCCEEDED (hres)) {
      while (enumpins->Next (1, &capture_pin, NULL) == S_OK) {
        IKsPropertySet *pKs = NULL;
        hres =
            capture_pin->QueryInterface (IID_IKsPropertySet, (LPVOID *) & pKs);
        if (SUCCEEDED (hres) && pKs) {
          DWORD cbReturned;
          GUID pin_category;
          RPC_STATUS rpcstatus;

          hres =
              pKs->Get (AMPROPSETID_Pin,
              AMPROPERTY_PIN_CATEGORY, NULL, 0, &pin_category, sizeof (GUID),
              &cbReturned);

          /* we only want capture pins */
          if (UuidCompare (&pin_category, (UUID *) & PIN_CATEGORY_CAPTURE,
                  &rpcstatus) == 0) {
            {
              GstCaps *caps =
                  gst_dshowvideosrc_getcaps_from_streamcaps (src, capture_pin);
              if (caps) {
                gst_caps_append (src->caps, caps);
              } else {
                caps = gst_dshowvideosrc_getcaps_from_enum_mediatypes (src, capture_pin);
                if (caps)
                  gst_caps_append (src->caps, caps);
              }
            }
          }
          pKs->Release ();
        }
        capture_pin->Release ();
      }
      enumpins->Release ();
    }
  }

  if (unidevice) {
    g_free (unidevice);
  }

  if (src->caps) {
    return gst_caps_ref (src->caps);
  }

  return NULL;
}
Пример #4
0
DirectShowScanner::DirectShowScanner() {
   ICreateDevEnum *pDevEnum      = 0;
   int             hr;
   int             devNum;
   char            nameBuf[80];
   
   // Reference:  Pesce, pp 54-56.   

   debug_msg("new DirectShowScanner()\n");

   // Initialize the COM subsystem
   hr=CoInitialize(NULL);
   if (FAILED(hr)) {
	   debug_msg("Failed COM subsystem initialisation.\n");
	   	return;
   }

   // Create a helper object to find the capture devices.
   hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER, IID_ICreateDevEnum, (LPVOID*)&pDevEnum);
   if (FAILED(hr)) {
   		debug_msg("Failed to Create a helper object to find the DS capture devices.\n");
		CoUninitialize();
		return;
   }

   IEnumMoniker *pEnum    = 0;
   IMoniker     *pMoniker = 0;
   IPropertyBag *pPropBag = 0;
   VARIANT      varName;

   // Get an enumerator over video capture filters
   hr = pDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory, &pEnum, 0);
   //showErrorMessage(hr);
   if (FAILED(hr) || pEnum == 0) {
   		debug_msg("Failed to Get an enumerator over DS video capture filters.\n");
		CoUninitialize();
		return;
   }

   // Get the capture filter for each device installed, up to NUM_DEVS devices
   for( devNum=0; devNum < NUM_DEVS; ++devNum) {
      if ( pEnum->Next(1, &pMoniker, NULL) == S_OK ) {

         hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag, (void **)&pPropBag);
	     if (FAILED(hr)) {
			debug_msg("Failed to Get propbag bound to storage on DS dev: %d\n", devNum);
			continue;
		 }
         //showErrorMessage(hr);
         debug_msg("propbag bound to storage ok= %d\n", hr);

         VariantInit(&varName);
         hr = pPropBag->Read(L"FriendlyName", &varName, 0);
		 if (FAILED(hr)) {
			debug_msg("Failed to Get friendly name read on DS dev: %d\n", devNum);
			continue;
		 }
         //showErrorMessage(hr);
         debug_msg("friendly name read ok= %d\n", hr);

         // Need this macro in atlconv.h to go from bStr to char* - msp
         USES_CONVERSION;
         strcpy(nameBuf, W2A(varName.bstrVal));

         debug_msg("DirectShowScanner::DirectShowScanner():  found nameBuf/FriendlyName=%s\n", nameBuf);

         // needs work, but don't add drivers that look like VFW drivers - msp
         if( (strstr(nameBuf, "VFW") == NULL) ) {
            hr = pMoniker->BindToObject(0, 0, IID_IBaseFilter, (void **)(pCaptureFilter+devNum));
            //showErrorMessage(hr);
			if (FAILED(hr)) {
				debug_msg("Failed to Get friendly name read on DS dev: %d\n", devNum);
				continue;
			}
			debug_msg("capture filter bound ok= %d\n", hr);
            devs_[devNum] = new DirectShowDevice(strdup(nameBuf), pCaptureFilter[devNum]);
         } else {
            debug_msg("discarding an apparent VFW device= %s\n", nameBuf);
			devs_[devNum] = NULL;
         }

         VariantClear(&varName);
         pPropBag->Release();
      }
   }

   // Release these objects so COM can release their memory
   pMoniker->Release();
   pEnum->Release();
   pDevEnum->Release();
}
Пример #5
0
gboolean
gst_dshow_find_filter (CLSID input_majortype, CLSID input_subtype,
    CLSID output_majortype, CLSID output_subtype,
    gchar * prefered_filter_name, IBaseFilter ** filter)
{
  gboolean ret = FALSE;
  HRESULT hres;
  GUID arrayInTypes[2];
  GUID arrayOutTypes[2];
  IFilterMapper2 *mapper = NULL;
  IEnumMoniker *enum_moniker = NULL;
  IMoniker *moniker = NULL;
  ULONG fetched;
  gchar *prefered_filter_upper = NULL;
  gboolean exit = FALSE;

  /* initialize output parameter */
  if (filter)
    *filter = NULL;

  /* create a private copy of prefered filter substring in upper case */
  if (prefered_filter_name) {
    prefered_filter_upper = g_strdup (prefered_filter_name);
    _strupr (prefered_filter_upper);
  }

  hres = CoCreateInstance (CLSID_FilterMapper2, NULL, CLSCTX_INPROC,
      IID_IFilterMapper2, (void **) &mapper);
  if (FAILED (hres))
    goto clean;

  memcpy (&arrayInTypes[0], &input_majortype, sizeof (CLSID));
  memcpy (&arrayInTypes[1], &input_subtype, sizeof (CLSID));
  memcpy (&arrayOutTypes[0], &output_majortype, sizeof (CLSID));
  memcpy (&arrayOutTypes[1], &output_subtype, sizeof (CLSID));

  hres =
      mapper->EnumMatchingFilters (&enum_moniker, 0, FALSE,
      MERIT_DO_NOT_USE + 1, TRUE, 1, arrayInTypes, NULL, NULL, FALSE, TRUE, 1,
      arrayOutTypes, NULL, NULL);
  if (FAILED (hres))
    goto clean;

  enum_moniker->Reset ();

  while (hres = enum_moniker->Next (1, &moniker, &fetched), hres == S_OK
      && !exit) {
    IBaseFilter *filter_temp = NULL;
    IPropertyBag *property_bag = NULL;
    gchar *friendly_name = NULL;

    hres =
        moniker->BindToStorage (NULL, NULL, IID_IPropertyBag,
        (void **) &property_bag);
    if (SUCCEEDED (hres) && property_bag) {
      VARIANT varFriendlyName;
      VariantInit (&varFriendlyName);

      hres = property_bag->Read (L"FriendlyName", &varFriendlyName, NULL);
      if (hres == S_OK && varFriendlyName.bstrVal) {
        friendly_name =
            g_utf16_to_utf8 ((const gunichar2 *) varFriendlyName.bstrVal,
            wcslen (varFriendlyName.bstrVal), NULL, NULL, NULL);
        if (friendly_name)
          _strupr (friendly_name);
        SysFreeString (varFriendlyName.bstrVal);
      }
      property_bag->Release ();
    }

    hres =
        moniker->BindToObject (NULL, NULL, IID_IBaseFilter,
        (void **) &filter_temp);
    if (SUCCEEDED (hres) && filter_temp) {
      ret = TRUE;
      if (filter) {
        if (*filter)
          (*filter)->Release ();

        *filter = filter_temp;
        (*filter)->AddRef ();

        if (prefered_filter_upper && friendly_name &&
            strstr (friendly_name, prefered_filter_upper))
          exit = TRUE;
      }

      /* if we just want to know if the formats are supported OR
         if we don't care about what will be the filter used
         => we can stop enumeration */
      if (!filter || !prefered_filter_upper)
        exit = TRUE;

      filter_temp->Release ();
    }

    g_free (friendly_name);
    moniker->Release ();
  }

clean:
  g_free (prefered_filter_upper);
  if (enum_moniker)
    enum_moniker->Release ();
  if (mapper)
    mapper->Release ();

  return ret;
}
Пример #6
0
static void vfw_detect(MSWebCamManager *obj) {
    ICreateDevEnum *pCreateDevEnum = NULL;
    IEnumMoniker *pEnumMoniker = NULL;
    IMoniker *pMoniker = NULL;
    HRESULT hr;

    ULONG nFetched = 0;

    // Initialize COM
    CoInitialize(NULL);

    hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
                          IID_ICreateDevEnum, (PVOID *)&pCreateDevEnum);
    if(FAILED(hr))
    {
        CoUninitialize();
        return ;
    }

    hr = pCreateDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,
            &pEnumMoniker, 0);
    if (FAILED(hr) || pEnumMoniker == NULL) {
        //printf("no device\n");
        CoUninitialize();
        return ;
    }

    pEnumMoniker->Reset();

    int pos=0;
    while(S_OK == pEnumMoniker->Next(1, &pMoniker, &nFetched) )
    {
        IPropertyBag *pBag;
        hr = pMoniker->BindToStorage( 0, 0, IID_IPropertyBag, (void**) &pBag );
        if( hr != S_OK )
            continue;

        VARIANT var;
        VariantInit(&var);
        hr = pBag->Read( L"FriendlyName", &var, NULL );
        if( hr != S_OK )
        {
            pMoniker->Release();
            continue;
        }
        //USES_CONVERSION;
        char szName[256];

        WideCharToMultiByte(CP_UTF8,0,var.bstrVal,-1,szName,256,0,0);
        VariantClear(&var);

        IBaseFilter *m_pDeviceFilter;
        hr = pMoniker->BindToObject(0, 0, IID_IBaseFilter, (void**)&m_pDeviceFilter );
        if(SUCCEEDED(hr))
        {
            GUID pPinCategory;
            int fmt_supported = 0;

            dump_format(m_pDeviceFilter);

            //basic testing for the device.
            if (try_format(m_pDeviceFilter,MS_YUV420P, &pPinCategory)==0)
                fmt_supported = 1;
            else if (try_format(m_pDeviceFilter,MS_YUY2, &pPinCategory)==0)
                fmt_supported = 1;
            else if (try_format(m_pDeviceFilter,MS_YUYV, &pPinCategory)==0)
                fmt_supported = 1;
            else if (try_format(m_pDeviceFilter,MS_UYVY, &pPinCategory)==0)
                fmt_supported = 1;
            else if (try_format(m_pDeviceFilter,MS_RGB24, &pPinCategory)==0)
                fmt_supported = 1;
            else
            {
                ms_warning("Unsupported video pixel format/refuse camera (%s).", szName);
            }

            if (fmt_supported==1)
            {
                MSWebCam *cam=ms_web_cam_new(&ms_directx_cam_desc);
                cam->name=ms_strdup(szName);
                ms_web_cam_manager_add_cam(obj,cam);
            }
            m_pDeviceFilter->Release();
            m_pDeviceFilter=NULL;
        }


        pMoniker->Release();
        pBag->Release();
        pMoniker=NULL;
        pBag=NULL;
    }

    pEnumMoniker->Release();
    pCreateDevEnum->Release();
    CoUninitialize();
}
Пример #7
0
static int v4w_open_videodevice(V4wState *s)
{
    // Initialize COM
    CoInitialize(NULL);

    // get a Graph
    HRESULT hr= CoCreateInstance (CLSID_FilterGraph,
                                  NULL,
                                  CLSCTX_INPROC_SERVER,
                                  IID_IGraphBuilder, //IID_IBaseFilter,
                                  (void **)&s->m_pGraph);
    if(FAILED(hr))
    {
        return -1;
    }

    // get a CaptureGraphBuilder2
    hr= CoCreateInstance (CLSID_CaptureGraphBuilder2,
                          NULL,
                          CLSCTX_INPROC_SERVER,
                          IID_ICaptureGraphBuilder2, //IID_IBaseFilter,
                          (void **)&s->m_pBuilder);
    if(FAILED(hr))
    {
        return -2;
    }

    // connect capture graph builder with the graph
    s->m_pBuilder->SetFiltergraph(s->m_pGraph);

    // get mediacontrol so we can start and stop the filter graph
    hr=s->m_pGraph->QueryInterface (IID_IMediaControl, (void **)&s->m_pControl);
    if(FAILED(hr))
    {
        return -3;
    }


    ICreateDevEnum *pCreateDevEnum = NULL;
    IEnumMoniker *pEnumMoniker = NULL;
    IMoniker *pMoniker = NULL;

    ULONG nFetched = 0;

    hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
                          IID_ICreateDevEnum, (PVOID *)&pCreateDevEnum);
    if(FAILED(hr))
    {
        return -4;
    }

    hr = pCreateDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,
            &pEnumMoniker, 0);
    if (FAILED(hr) || pEnumMoniker == NULL) {
        //printf("no device\n");
        return -5;
    }

    pEnumMoniker->Reset();

    int pos=0;
    while(S_OK == pEnumMoniker->Next(1, &pMoniker, &nFetched) )
    {
        IPropertyBag *pBag;
        hr = pMoniker->BindToStorage( 0, 0, IID_IPropertyBag, (void**) &pBag );
        if( hr != S_OK )
            continue;

        if (s->dev[0]=='\0')
            break;

        VARIANT var;
        VariantInit(&var);
        hr = pBag->Read( L"FriendlyName", &var, NULL );
        if( hr != S_OK )
        {
            pMoniker->Release();
            continue;
        }
        //USES_CONVERSION;
        char szName[256];

        WideCharToMultiByte(CP_UTF8,0,var.bstrVal,-1,szName,256,0,0);
        VariantClear(&var);

        if (strcmp(szName, s->dev)==0)
            break;

        pMoniker->Release();
        pBag->Release();
        pMoniker=NULL;
        pBag=NULL;
    }

    if(pMoniker==NULL)
    {
        return -6;
    }

    hr = pMoniker->BindToObject(0, 0, IID_IBaseFilter, (void**)&s->m_pDeviceFilter );
    if(FAILED(hr))
    {
        return -7;
    }

    s->m_pGraph->AddFilter(s->m_pDeviceFilter, L"Device Filter");

    pMoniker->Release();
    pEnumMoniker->Release();
    pCreateDevEnum->Release();


    GUID pPinCategory;

    if (try_format(s->m_pDeviceFilter, s->pix_fmt, &pPinCategory)==0)
        s->pix_fmt = s->pix_fmt;
    else if (try_format(s->m_pDeviceFilter,MS_YUV420P, &pPinCategory)==0)
        s->pix_fmt = MS_YUV420P;
    else if (try_format(s->m_pDeviceFilter,MS_YUY2, &pPinCategory)==0)
        s->pix_fmt = MS_YUY2;
    else if (try_format(s->m_pDeviceFilter,MS_YUYV, &pPinCategory)==0)
        s->pix_fmt = MS_YUYV;
    else if (try_format(s->m_pDeviceFilter,MS_UYVY, &pPinCategory)==0)
        s->pix_fmt = MS_UYVY;
    else if (try_format(s->m_pDeviceFilter,MS_RGB24, &pPinCategory)==0)
        s->pix_fmt = MS_RGB24;
    else
    {
        ms_error("Unsupported video pixel format.");
        return -8;
    }

    if (s->pix_fmt == MS_YUV420P)
        ms_message("Driver supports YUV420P, using that format.");
    else if (s->pix_fmt == MS_YUY2)
        ms_message("Driver supports YUY2 (YUYV), using that format.");
    else if (s->pix_fmt == MS_YUYV)
        ms_message("Driver supports YUV422, using that format.");
    else if (s->pix_fmt == MS_UYVY)
        ms_message("Driver supports UYVY, using that format.");
    else if (s->pix_fmt == MS_RGB24)
        ms_message("Driver supports RGB24, using that format.");

    if (try_format_size(s, s->pix_fmt, s->vsize.width, s->vsize.height, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", s->vsize.width, s->vsize.height);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_QCIF_W, MS_VIDEO_SIZE_QCIF_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_QCIF_W, MS_VIDEO_SIZE_QCIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_CIF_W, MS_VIDEO_SIZE_CIF_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_CIF_W, MS_VIDEO_SIZE_CIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_4CIF_W, MS_VIDEO_SIZE_4CIF_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_4CIF_W, MS_VIDEO_SIZE_4CIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_QVGA_W, MS_VIDEO_SIZE_QVGA_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_QVGA_W, MS_VIDEO_SIZE_QVGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_QQVGA_W, MS_VIDEO_SIZE_QQVGA_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_QQVGA_W, MS_VIDEO_SIZE_QQVGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_NS1_W, MS_VIDEO_SIZE_NS1_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_NS1_W, MS_VIDEO_SIZE_NS1_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_QSIF_W, MS_VIDEO_SIZE_QSIF_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_QSIF_W, MS_VIDEO_SIZE_QSIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_SIF_W, MS_VIDEO_SIZE_SIF_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_SIF_W, MS_VIDEO_SIZE_SIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_VGA_W, MS_VIDEO_SIZE_VGA_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_VGA_W, MS_VIDEO_SIZE_VGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_SDTV_W, MS_VIDEO_SIZE_SDTV_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_SDTV_W, MS_VIDEO_SIZE_SDTV_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_288P_W, MS_VIDEO_SIZE_288P_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_288P_W, MS_VIDEO_SIZE_288P_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_448P_W, MS_VIDEO_SIZE_448P_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_448P_W, MS_VIDEO_SIZE_448P_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_576P_W, MS_VIDEO_SIZE_576P_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_576P_W, MS_VIDEO_SIZE_576P_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_720P_W, MS_VIDEO_SIZE_720P_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_720P_W, MS_VIDEO_SIZE_720P_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_1080P_W, MS_VIDEO_SIZE_1080P_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_1080P_W, MS_VIDEO_SIZE_1080P_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_4SIF_W, MS_VIDEO_SIZE_4SIF_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_4SIF_W, MS_VIDEO_SIZE_4SIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_SVGA_W, MS_VIDEO_SIZE_SVGA_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_SVGA_W, MS_VIDEO_SIZE_SVGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_XGA_W, MS_VIDEO_SIZE_XGA_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_XGA_W, MS_VIDEO_SIZE_XGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_WXGA_W, MS_VIDEO_SIZE_WXGA_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_WXGA_W, MS_VIDEO_SIZE_WXGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_HDTVP_W, MS_VIDEO_SIZE_HDTVP_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_HDTVP_W, MS_VIDEO_SIZE_HDTVP_H);
    else
    {
        ms_error("No supported size found for format.");
        /* size not supported? */
        return -9;
    }

    // get DXFilter
    s->m_pDXFilter = new CDXFilter(NULL, &hr, FALSE);
    if(s->m_pDXFilter==NULL)
    {
        return -10;
    }
    s->m_pDXFilter->AddRef();

    CMediaType mt;
    mt.SetType(&MEDIATYPE_Video);

    GUID m = MEDIASUBTYPE_RGB24;
    if (s->pix_fmt == MS_YUV420P)
        m = (GUID)FOURCCMap(MAKEFOURCC('I','4','2','0'));
    else if (s->pix_fmt == MS_YUY2)
        m = MEDIASUBTYPE_YUY2;
    else if (s->pix_fmt == MS_YUYV)
        m = MEDIASUBTYPE_YUYV;
    else if (s->pix_fmt == MS_UYVY)
        m = MEDIASUBTYPE_UYVY;
    else if (s->pix_fmt == MS_RGB24)
        m = MEDIASUBTYPE_RGB24;
    mt.SetSubtype(&m);

    mt.formattype = FORMAT_VideoInfo;
    mt.SetTemporalCompression(FALSE);

    VIDEOINFO *pvi = (VIDEOINFO *)
                     mt.AllocFormatBuffer(sizeof(VIDEOINFO));
    if (NULL == pvi)
        return -11;
    ZeroMemory(pvi, sizeof(VIDEOINFO));

    if (s->pix_fmt == MS_YUV420P)
        pvi->bmiHeader.biCompression = MAKEFOURCC('I','4','2','0');
    else if (s->pix_fmt == MS_YUY2)
        pvi->bmiHeader.biCompression = MAKEFOURCC('Y','U','Y','2');
    else if (s->pix_fmt == MS_YUYV)
        pvi->bmiHeader.biCompression = MAKEFOURCC('Y','U','Y','V');
    else if (s->pix_fmt == MS_UYVY)
        pvi->bmiHeader.biCompression = MAKEFOURCC('U','Y','V','Y');
    else if (s->pix_fmt == MS_RGB24)
        pvi->bmiHeader.biCompression = BI_RGB;

    if (s->pix_fmt == MS_YUV420P)
        pvi->bmiHeader.biBitCount = 12;
    else if (s->pix_fmt == MS_YUY2)
        pvi->bmiHeader.biBitCount = 16;
    else if (s->pix_fmt == MS_YUYV)
        pvi->bmiHeader.biBitCount = 16;
    else if (s->pix_fmt == MS_UYVY)
        pvi->bmiHeader.biBitCount = 16;
    else if (s->pix_fmt == MS_RGB24)
        pvi->bmiHeader.biBitCount = 24;

    pvi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
    pvi->bmiHeader.biWidth = s->vsize.width;
    pvi->bmiHeader.biHeight = s->vsize.height;
    pvi->bmiHeader.biPlanes = 1;
    pvi->bmiHeader.biSizeImage = GetBitmapSize(&pvi->bmiHeader);
    pvi->bmiHeader.biClrImportant = 0;
    mt.SetSampleSize(pvi->bmiHeader.biSizeImage);

    mt.SetFormat((BYTE*)pvi, sizeof(VIDEOINFO));

    hr = s->m_pDXFilter->SetAcceptedMediaType(&mt);
    if(FAILED(hr))
    {
        return -12;
    }

    hr = s->m_pDXFilter->SetCallback(Callback);
    if(FAILED(hr))
    {
        return -13;
    }

    hr = s->m_pDXFilter->QueryInterface(IID_IBaseFilter,
                                        (LPVOID *)&s->m_pIDXFilter);
    if(FAILED(hr))
    {
        return -14;
    }

    hr = s->m_pGraph->AddFilter(s->m_pIDXFilter, L"DXFilter Filter");
    if(FAILED(hr))
    {
        return -15;
    }


    // get null renderer
    hr=CoCreateInstance (CLSID_NullRenderer,
                         NULL,
                         CLSCTX_INPROC_SERVER,
                         IID_IBaseFilter,
                         (void **)&s->m_pNullRenderer);
    if(FAILED(hr))
    {
        return -16;
    }
    if (s->m_pNullRenderer!=NULL)
    {
        s->m_pGraph->AddFilter(s->m_pNullRenderer, L"Null Renderer");
    }

    hr = s->m_pBuilder->RenderStream(&pPinCategory,
                                     &MEDIATYPE_Video, s->m_pDeviceFilter, s->m_pIDXFilter, s->m_pNullRenderer);
    if (FAILED(hr))
    {
        return -17;
    }

    IAMStreamConfig *pConfig = NULL;
    hr = s->m_pBuilder->FindInterface(
             &pPinCategory, // Preview pin.
             &MEDIATYPE_Video,    // Any media type.
             s->m_pDeviceFilter, // Pointer to the capture filter.
             IID_IAMStreamConfig, (void**)&pConfig);
    if (pConfig!=NULL)
    {
        AM_MEDIA_TYPE *pType = NULL;
        int iCount, iSize;
        pConfig->GetNumberOfCapabilities(&iCount, &iSize);

        for (int i = 0; i < iCount; i++) {
            VIDEO_STREAM_CONFIG_CAPS scc;
            pType = NULL;
            pConfig->GetStreamCaps(i, &pType, (BYTE *)&scc);

            if (!((pType->formattype == FORMAT_VideoInfo) &&
                    (pType->cbFormat >= sizeof(VIDEOINFOHEADER)) &&
                    (pType->pbFormat != NULL)))
                continue;

            VIDEOINFOHEADER & videoInfo = *(VIDEOINFOHEADER *)pType->pbFormat;

            if (m != pType->subtype)
                continue;

            if (videoInfo.bmiHeader.biWidth != s->vsize.width)
                continue;

            if (videoInfo.bmiHeader.biHeight != s->vsize.height)
                continue;

            if (videoInfo.bmiHeader.biBitCount != pvi->bmiHeader.biBitCount)
                continue;

            if (videoInfo.bmiHeader.biCompression != pvi->bmiHeader.biCompression)
                continue;

            videoInfo.AvgTimePerFrame = UNITS / (LONGLONG)s->fps;
            pConfig->SetFormat(pType);
        }

        pConfig->GetFormat(&pType);
        if (pType!=NULL)
        {
            VIDEOINFO *pvi;
            pvi = (VIDEOINFO *)pType->pbFormat;
            ms_message("v4w: camera asked fps=%.2f // real fps=%.2f", s->fps, ((float)UNITS / (float)pvi->AvgTimePerFrame));
        }

        pConfig->Release();
    }

    //m_pDXFilter->SetBufferSamples(TRUE);

    s_callback = s;
    hr = s->m_pControl->Run();
    if(FAILED(hr))
    {
        return -18;
    }


    s->rotregvalue=1;
    return 0;
}
Пример #8
0
static int v4w_open_videodevice(V4wState *s)
{
    // Initialize COM
    CoInitialize(NULL);

    // get a Graph
    HRESULT hr=s->m_pGraph.CoCreateInstance(CLSID_FilterGraph);
    if(FAILED(hr))
    {
        return -1;
    }

    // get a CaptureGraphBuilder2
    hr=s->m_pBuilder.CoCreateInstance(CLSID_CaptureGraphBuilder2);
    if(FAILED(hr))
    {
        return -2;
    }

    // connect capture graph builder with the graph
    s->m_pBuilder->SetFiltergraph(s->m_pGraph);

    // get mediacontrol so we can start and stop the filter graph
    hr=s->m_pGraph.QueryInterface(&(s->m_pControl));
    if(FAILED(hr))
    {
        return -3;
    }


#ifdef _DEBUG
    HANDLE m_hLogFile=CreateFile(L"DShowGraphLog.txt",GENERIC_READ|GENERIC_WRITE,FILE_SHARE_READ,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);
    if(m_hLogFile!=INVALID_HANDLE_VALUE)
    {
        hr=s->m_pGraph->SetLogFile((DWORD_PTR)m_hLogFile);
        /* ASSERT(SUCCEEDED(hr)); */
    }

    //AddGraphToRot(s->m_pGraph, &s->rotregvalue);
#endif

    ICreateDevEnum *pCreateDevEnum = NULL;
    IEnumMoniker *pEnumMoniker = NULL;
    IMoniker *pMoniker = NULL;

    ULONG nFetched = 0;

    hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
                          IID_ICreateDevEnum, (PVOID *)&pCreateDevEnum);
    if(FAILED(hr))
    {
        return -4;
    }

    hr = pCreateDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,
            &pEnumMoniker, 0);
    if (FAILED(hr) || pEnumMoniker == NULL) {
        //printf("no device\n");
        return -5;
    }

    pEnumMoniker->Reset();

    int pos=0;
    while(S_OK == pEnumMoniker->Next(1, &pMoniker, &nFetched) )
    {
        if (pos>=s->devidx)
            break;
        pos++;
        pMoniker->Release();
        pMoniker=NULL;
    }
    if(pMoniker==NULL)
    {
        return -6;
    }

    hr = pMoniker->BindToObject(0, 0, IID_IBaseFilter, (void**)&s->m_pDeviceFilter );
    if(FAILED(hr))
    {
        return -7;
    }

    s->m_pGraph->AddFilter(s->m_pDeviceFilter, L"Device Filter");

    pMoniker->Release();
    pEnumMoniker->Release();
    pCreateDevEnum->Release();

    if (try_format(s, s->pix_fmt)==0)
        s->pix_fmt = s->pix_fmt;
    else if (try_format(s,MS_YUV420P)==0)
        s->pix_fmt = MS_YUV420P;
    else if (try_format(s,MS_YUY2)==0)
        s->pix_fmt = MS_YUY2;
    else if (try_format(s,MS_YUYV)==0)
        s->pix_fmt = MS_YUYV;
    else if (try_format(s,MS_UYVY)==0)
        s->pix_fmt = MS_UYVY;
    else if (try_format(s,MS_RGB24)==0)
        s->pix_fmt = MS_RGB24;
    else
    {
        ms_error("Unsupported video pixel format.");
        return -8;
    }

    if (s->pix_fmt == MS_YUV420P)
        ms_message("Driver supports YUV420P, using that format.");
    else if (s->pix_fmt == MS_YUY2)
        ms_message("Driver supports YUY2 (UYVY), using that format.");
    else if (s->pix_fmt == MS_YUYV)
        ms_message("Driver supports YUV422, using that format.");
    else if (s->pix_fmt == MS_UYVY)
        ms_message("Driver supports UYVY, using that format.");
    else if (s->pix_fmt == MS_RGB24)
        ms_message("Driver supports RGB24, using that format.");

    if (try_format_size(s, s->pix_fmt, s->vsize.width, s->vsize.height)==0)
        ms_message("Selected Size: %ix%i.", s->vsize.width, s->vsize.height);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_QCIF_W, MS_VIDEO_SIZE_QCIF_H)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_QCIF_W, MS_VIDEO_SIZE_QCIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_CIF_W, MS_VIDEO_SIZE_CIF_H)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_CIF_W, MS_VIDEO_SIZE_CIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_4CIF_W, MS_VIDEO_SIZE_4CIF_H)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_4CIF_W, MS_VIDEO_SIZE_4CIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_VGA_W, MS_VIDEO_SIZE_VGA_H)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_VGA_W, MS_VIDEO_SIZE_VGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_QVGA_W, MS_VIDEO_SIZE_QVGA_H)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_QVGA_W, MS_VIDEO_SIZE_QVGA_H);
    else
    {
        ms_error("No supported size found for format.");
        /* size not supported? */
        return -9;
    }

    // get DXFilter
    s->m_pDXFilter = new CDXFilter(NULL, &hr, FALSE);
    if(s->m_pDXFilter==NULL)
    {
        return -10;
    }
    s->m_pDXFilter->AddRef();

    CMediaType mt;
    mt.SetType(&MEDIATYPE_Video);

    GUID m = MEDIASUBTYPE_RGB24;
    if (s->pix_fmt == MS_YUV420P)
        m = (GUID)FOURCCMap(MAKEFOURCC('I','4','2','0'));
    else if (s->pix_fmt == MS_YUY2)
        m = MEDIASUBTYPE_YUY2;
    else if (s->pix_fmt == MS_YUYV)
        m = MEDIASUBTYPE_YUYV;
    else if (s->pix_fmt == MS_UYVY)
        m = MEDIASUBTYPE_UYVY;
    else if (s->pix_fmt == MS_RGB24)
        m = MEDIASUBTYPE_RGB24;
    mt.SetSubtype(&m);

    mt.formattype = FORMAT_VideoInfo;
    mt.SetTemporalCompression(FALSE);

    VIDEOINFO *pvi = (VIDEOINFO *)
                     mt.AllocFormatBuffer(sizeof(VIDEOINFO));
    if (NULL == pvi)
        return -11;
    ZeroMemory(pvi, sizeof(VIDEOINFO));

    if (s->pix_fmt == MS_YUV420P)
        pvi->bmiHeader.biCompression = MAKEFOURCC('I','4','2','0');
    else if (s->pix_fmt == MS_YUY2)
        pvi->bmiHeader.biCompression = MAKEFOURCC('Y','U','Y','2');
    else if (s->pix_fmt == MS_YUYV)
        pvi->bmiHeader.biCompression = MAKEFOURCC('Y','U','Y','V');
    else if (s->pix_fmt == MS_UYVY)
        pvi->bmiHeader.biCompression = MAKEFOURCC('U','Y','V','Y');
    else if (s->pix_fmt == MS_RGB24)
        pvi->bmiHeader.biCompression = BI_RGB;

    if (s->pix_fmt == MS_YUV420P)
        pvi->bmiHeader.biBitCount = 12;
    else if (s->pix_fmt == MS_YUY2)
        pvi->bmiHeader.biBitCount = 16;
    else if (s->pix_fmt == MS_YUYV)
        pvi->bmiHeader.biBitCount = 16;
    else if (s->pix_fmt == MS_UYVY)
        pvi->bmiHeader.biBitCount = 16;
    else if (s->pix_fmt == MS_RGB24)
        pvi->bmiHeader.biBitCount = 24;

    pvi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
    pvi->bmiHeader.biWidth = s->vsize.width;
    pvi->bmiHeader.biHeight = s->vsize.height;
    pvi->bmiHeader.biPlanes = 1;
    pvi->bmiHeader.biSizeImage = GetBitmapSize(&pvi->bmiHeader);
    pvi->bmiHeader.biClrImportant = 0;
    mt.SetSampleSize(pvi->bmiHeader.biSizeImage);
    mt.SetFormat((BYTE*)pvi, sizeof(VIDEOINFO));

    hr = s->m_pDXFilter->SetAcceptedMediaType(&mt);
    if(FAILED(hr))
    {
        return -12;
    }

    hr = s->m_pDXFilter->SetCallback(Callback);
    if(FAILED(hr))
    {
        return -13;
    }

    hr = s->m_pDXFilter->QueryInterface(IID_IBaseFilter,
                                        (LPVOID *)&s->m_pIDXFilter);
    if(FAILED(hr))
    {
        return -14;
    }

    hr = s->m_pGraph->AddFilter(s->m_pIDXFilter, L"DXFilter Filter");
    if(FAILED(hr))
    {
        return -15;
    }


    // get null renderer
    hr=s->m_pNullRenderer.CoCreateInstance(CLSID_NullRenderer);
    if(FAILED(hr))
    {
        return -16;
    }
    if (s->m_pNullRenderer!=NULL)
    {
        s->m_pGraph->AddFilter(s->m_pNullRenderer, L"Null Renderer");
    }

    hr = s->m_pBuilder->RenderStream(&PIN_CATEGORY_PREVIEW,
                                     &MEDIATYPE_Video, s->m_pDeviceFilter, s->m_pIDXFilter, s->m_pNullRenderer);
    if (FAILED(hr))
    {
        //hr = s->m_pBuilder->RenderStream(&PIN_CATEGORY_CAPTURE,
        //	&MEDIATYPE_Video, s->m_pDeviceFilter, s->m_pIDXFilter, s->m_pNullRenderer);
        if (FAILED(hr))
        {
            return -17;
        }
    }

    //m_pDXFilter->SetBufferSamples(TRUE);

    s_callback = s;
    hr = s->m_pControl->Run();
    if(FAILED(hr))
    {
        return -18;
    }

    s->rotregvalue=1;
    return 0;
}
Пример #9
0
int	main()
{
	// for playing
	IGraphBuilder *pGraphBuilder;
	ICaptureGraphBuilder2 *pCaptureGraphBuilder2;
	IMediaControl *pMediaControl;
	IBaseFilter *pDeviceFilter = NULL;

	// to select a video input device
	ICreateDevEnum *pCreateDevEnum = NULL;
	IEnumMoniker *pEnumMoniker = NULL;
	IMoniker *pMoniker = NULL;
	ULONG nFetched = 0;

	// initialize COM
	CoInitialize(NULL);

	//
	// selecting a device
	//

	// Create CreateDevEnum to list device
	CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER, 
		IID_ICreateDevEnum, (PVOID *)&pCreateDevEnum);

	// Create EnumMoniker to list VideoInputDevice 
	pCreateDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,
		&pEnumMoniker, 0);
	if (pEnumMoniker == NULL) {
		// this will be shown if there is no capture device
		printf("no device\n");
		return 0;
	}

	// reset EnumMoniker
	pEnumMoniker->Reset();

	// get each Moniker
	while (pEnumMoniker->Next(1, &pMoniker, &nFetched) == S_OK)
	{
		IPropertyBag *pPropertyBag;
		TCHAR devname[256];

		// bind to IPropertyBag
		pMoniker->BindToStorage(0, 0, IID_IPropertyBag,
			(void **)&pPropertyBag);

		VARIANT var;

		// get FriendlyName
		var.vt = VT_BSTR;
		pPropertyBag->Read(L"FriendlyName", &var, 0);
		WideCharToMultiByte(CP_ACP, 0,
			var.bstrVal, -1, devname, sizeof(devname), 0, 0);
		VariantClear(&var);

		printf("%s\r\n", devname);
		printf("  select this device ? [y] or [n]\r\n");
		int ch = getchar();

		// you can start playing by 'y' + return key
		// if you press the other key, it will not be played.
		if (ch == 'y')
		{
			// Bind Monkier to Filter
			pMoniker->BindToObject(0, 0, IID_IBaseFilter,
				(void**)&pDeviceFilter );
		}
		else
		{
			getchar();
		}

		// release
		pMoniker->Release();
		pPropertyBag->Release();

		if (pDeviceFilter != NULL)
		{
			// go out of loop if getchar() returns 'y'
			break;
		}
	}

	if (pDeviceFilter != NULL) {
		//
		// PLAY
		//

		// create FilterGraph
		CoCreateInstance(CLSID_FilterGraph,
			NULL,
			CLSCTX_INPROC,
			IID_IGraphBuilder,
			(LPVOID *)&pGraphBuilder);

		// create CaptureGraphBuilder2
		CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC, 
			IID_ICaptureGraphBuilder2, 
			(LPVOID *)&pCaptureGraphBuilder2);

		//============================================================
		//===========  MY CODE  ======================================
		//=============================================================
		HRESULT hr = CoInitialize(0);
		IAMStreamConfig *pConfig = NULL;
		hr = pCaptureGraphBuilder2->FindInterface(&PIN_CATEGORY_CAPTURE, 0, pDeviceFilter, IID_IAMStreamConfig, (void**)&pConfig);

		int iCount = 0, iSize = 0;
		hr = pConfig->GetNumberOfCapabilities(&iCount, &iSize);

		// Check the size to make sure we pass in the correct structure.
		if (iSize == sizeof(VIDEO_STREAM_CONFIG_CAPS))
		{
			// Use the video capabilities structure.

			for (int iFormat = 0; iFormat < iCount; iFormat++)
			{
				VIDEO_STREAM_CONFIG_CAPS scc;
				AM_MEDIA_TYPE *pmtConfig;
				hr = pConfig->GetStreamCaps(iFormat, &pmtConfig, (BYTE*)&scc);
				if (SUCCEEDED(hr))
				{
					/* Examine the format, and possibly use it. */
					if ((pmtConfig->majortype == MEDIATYPE_Video) &&
						(pmtConfig->subtype == MEDIASUBTYPE_RGB24) &&
						(pmtConfig->formattype == FORMAT_VideoInfo) &&
						(pmtConfig->cbFormat >= sizeof (VIDEOINFOHEADER)) &&
						(pmtConfig->pbFormat != NULL))
					{
						VIDEOINFOHEADER *pVih = (VIDEOINFOHEADER*)pmtConfig->pbFormat;
						// pVih contains the detailed format information.
						LONG lWidth = pVih->bmiHeader.biWidth;
						LONG lHeight = pVih->bmiHeader.biHeight;
						if( lWidth == 1280 )
							//					if (iFormat == 26)
						{ //2 = '1280x720YUV' YUV, 22 = '1280x800YUV', 26 = '1280x720RGB'
							hr = pConfig->SetFormat(pmtConfig);
						}
					}
					// Delete the media type when you are done.
					DeleteMediaType(pmtConfig);
				}
			}
		}


		// Query the capture filter for the IAMCameraControl interface.
		IAMCameraControl *pCameraControl = 0;
		hr = pDeviceFilter->QueryInterface(IID_IAMCameraControl, (void**)&pCameraControl);
		if (FAILED(hr))
		{
			// The device does not support IAMCameraControl
		}
		else
		{
			long Min, Max, Step, Default, Flags, Val;

			// Get the range and default values 
			hr = pCameraControl->GetRange(CameraControl_Exposure, &Min, &Max, &Step, &Default, &Flags);
			hr = pCameraControl->GetRange(CameraControl_Focus, &Min, &Max, &Step, &Default, &Flags);
			if (SUCCEEDED(hr))
			{
				hr = pCameraControl->Set(CameraControl_Exposure, -11, CameraControl_Flags_Manual ); // Min = -11, Max = 1, Step = 1
				hr = pCameraControl->Set(CameraControl_Focus, 12, CameraControl_Flags_Manual );
			}
		}


		// Query the capture filter for the IAMVideoProcAmp interface.
		IAMVideoProcAmp *pProcAmp = 0;
		hr = pDeviceFilter->QueryInterface(IID_IAMVideoProcAmp, (void**)&pProcAmp);
		if (FAILED(hr))
		{
			// The device does not support IAMVideoProcAmp
		}
		else
		{
			long Min, Max, Step, Default, Flags, Val;

			// Get the range and default values 
			hr = pProcAmp->GetRange(VideoProcAmp_Brightness, &Min, &Max, &Step, &Default, &Flags);
			hr = pProcAmp->GetRange(VideoProcAmp_BacklightCompensation, &Min, &Max, &Step, &Default, &Flags);
			hr = pProcAmp->GetRange(VideoProcAmp_Contrast, &Min, &Max, &Step, &Default, &Flags);
			hr = pProcAmp->GetRange(VideoProcAmp_Saturation, &Min, &Max, &Step, &Default, &Flags);
			hr = pProcAmp->GetRange(VideoProcAmp_Sharpness, &Min, &Max, &Step, &Default, &Flags);
			hr = pProcAmp->GetRange(VideoProcAmp_WhiteBalance, &Min, &Max, &Step, &Default, &Flags);
			if (SUCCEEDED(hr))
			{
				hr = pProcAmp->Set(VideoProcAmp_Brightness, 142, VideoProcAmp_Flags_Manual);
				hr = pProcAmp->Set(VideoProcAmp_BacklightCompensation, 0, VideoProcAmp_Flags_Manual);
				hr = pProcAmp->Set(VideoProcAmp_Contrast, 4, VideoProcAmp_Flags_Manual);
				hr = pProcAmp->Set(VideoProcAmp_Saturation, 100, VideoProcAmp_Flags_Manual);
				hr = pProcAmp->Set(VideoProcAmp_Sharpness, 0, VideoProcAmp_Flags_Manual);
				hr = pProcAmp->Set(VideoProcAmp_WhiteBalance, 2800, VideoProcAmp_Flags_Manual);
			}
		}


		//============================================================
		//=========== END MY CODE  ======================================
		//=============================================================

		hr = S_OK;
		CTransformer* trans = new CTransformer( "Dif trans", 0, CLSID_DIFFilter, &hr );
		IBaseFilter * ttt = 0;
		trans->QueryInterface(IID_IBaseFilter, (LPVOID *)&ttt);
		// set FilterGraph
		hr = pCaptureGraphBuilder2->SetFiltergraph(pGraphBuilder);

		// get MediaControl interface
		hr = pGraphBuilder->QueryInterface(IID_IMediaControl,
			(LPVOID *)&pMediaControl);

		// add device filter to FilterGraph
		hr = pGraphBuilder->AddFilter(ttt, L"Dif trans");
		hr = pGraphBuilder->AddFilter(pDeviceFilter, L"Device Filter");

		// create Graph
		hr = pCaptureGraphBuilder2->RenderStream(&PIN_CATEGORY_CAPTURE,
			NULL, pDeviceFilter, NULL, NULL);

		// start playing
		hr = pMediaControl->Run();

		// to block execution
		// without this messagebox, the graph will be stopped immediately
		MessageBox(NULL,
			"Block Execution",
			"Block",
			MB_OK);

		// release
		pMediaControl->Release();
		pCaptureGraphBuilder2->Release();
		pGraphBuilder->Release();
	}

	// release
	pEnumMoniker->Release();
	pCreateDevEnum->Release();

	// finalize COM
	CoUninitialize();

	return 0;
}
Пример #10
0
// Enumerate all of the video input devices
// Return the filter with a matching friendly name
HRESULT GetVideoInputFilter(IBaseFilter** gottaFilter, wchar_t* matchName)
{
	BOOL done = false;

	// Create the System Device Enumerator.
	ICreateDevEnum *pSysDevEnum = NULL;
	HRESULT hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
		IID_ICreateDevEnum, (void **)&pSysDevEnum);
	if (FAILED(hr))
	{
		return hr;
	}

	// Obtain a class enumerator for the video input category.
	IEnumMoniker *pEnumCat = NULL;
	hr = pSysDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory, &pEnumCat, 0);

	if (hr == S_OK) 
	{
		// Enumerate the monikers.
		IMoniker *pMoniker = NULL;
		ULONG cFetched;
		while ((pEnumCat->Next(1, &pMoniker, &cFetched) == S_OK) && (!done))
		{
			// Bind the first moniker to an object
			IPropertyBag *pPropBag;
			hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag, 
				(void **)&pPropBag);
			if (SUCCEEDED(hr))
			{
				// To retrieve the filter's friendly name, do the following:
				VARIANT varName;
				VariantInit(&varName);
				hr = pPropBag->Read(L"FriendlyName", &varName, 0);
				if (SUCCEEDED(hr))
				{
					wprintf(L"Testing Video Input Device: %s\n", varName.bstrVal);

					// Do a comparison, find out if it's the right one
					if (wcsncmp(varName.bstrVal, matchName, 
						wcslen(matchName)) == 0) {

						// We found it, so send it back to the caller
						hr = pMoniker->BindToObject(NULL, NULL, IID_IBaseFilter, (void**) gottaFilter);
						done = true;
					}
				}
				VariantClear(&varName);	
				pPropBag->Release();
			}
			pMoniker->Release();
		}
		pEnumCat->Release();
	}
	pSysDevEnum->Release();
	if (done) {
		return hr;	// found it, return native error
	} else {
		return VFW_E_NOT_FOUND;	// didn't find it error
	}
}
Пример #11
0
void CVisualPage::OnCamSetupButton()
{
  CComboBox * box = (CComboBox*)(GetDlgItem(IDC_RECORDING_COMBO));
  int i = box->GetCurSel();
  int n = box->GetLBTextLen(i);
  CString s;
  box->GetLBText(i, s.GetBuffer(n));
  PString setupDeviceName = s;
  s.ReleaseBuffer();

  if (setupDeviceName.IsEmpty()) return;
  if (setupDeviceName.Find("fake") == 0) return;
  if (setupDeviceName.Find("monitor") == 0) return;
  if (setupDeviceName.Find("zmonitor") == 0) return;
  PTRACE(4,"PVidDirectShow\tCurrent device: " << setupDeviceName);

  HRESULT hr;
  IBaseFilter * pFilter = NULL;
  IMoniker *pMoniker =NULL;
  ICreateDevEnum *pDevEnum =NULL;
  IEnumMoniker *pClassEnum = NULL;
  ULONG cFetched;

  ::CoInitialize(NULL);

  // Create the system device enumerator
  hr = CoCreateInstance (CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC, IID_ICreateDevEnum, (void **) &pDevEnum);
  if (FAILED(hr)) { ::CoUninitialize(); return; }

  // Create an enumerator for the video capture devices
  hr = pDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory, &pClassEnum, 0);
  if (FAILED(hr)) { ::CoUninitialize(); return; }

  if (pClassEnum == NULL) { ::CoUninitialize(); return; }

  PTRACE(4,"PVidDirectShow\tEntering device enumeration loop...");
  while (1)
  { // Get the next device
    hr = pClassEnum->Next(1, &pMoniker, &cFetched);
    if (hr != S_OK) { PTRACE(4, "PVidDirectShow\tGetInputDeviceNames() No more video capture device"); break; }

    // Get the property bag
    IPropertyBag *pPropBag;

    hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag, (void**)(&pPropBag));
    if (FAILED(hr))
    { PTRACE(4,"PVidDerectShow\tBindToStorage failed, continue");
      pMoniker->Release();
      continue;
    }

    // Find the description or friendly name.
    VARIANT DeviceName;
    DeviceName.vt = VT_BSTR;
    hr = pPropBag->Read(L"Description", &DeviceName, NULL);
    if (FAILED(hr)) hr = pPropBag->Read(L"FriendlyName", &DeviceName, NULL);
    if (SUCCEEDED(hr))
    { char *pDeviceName = BSTR_to_ANSI(DeviceName.bstrVal);
      if (pDeviceName)
      { PTRACE(4, "PVidDirectShow\tGetInputDeviceNames() Found this capture device '"<< pDeviceName <<"'");
        if(PString(pDeviceName) == setupDeviceName)
        {
          PTRACE(4, "PVidDirectShow\tCamera Setup: device found");
          pMoniker->BindToObject(0, 0, IID_IBaseFilter, (void**) &pFilter);
          ISpecifyPropertyPages *p_spec; CAUUID cauuid;
          HRESULT hr = pFilter->QueryInterface( IID_ISpecifyPropertyPages, (void **)&p_spec );
          if( !FAILED(hr) )
          if( SUCCEEDED(p_spec->GetPages( &cauuid )) )
          { if( cauuid.cElems > 0 )
            { HWND hwnd_desktop = ::GetDesktopWindow();
              OleCreatePropertyFrame( hwnd_desktop, 30, 30, NULL, 1, (LPUNKNOWN *)(&pFilter), cauuid.cElems, cauuid.pElems, 0, 0, NULL );
              CoTaskMemFree( cauuid.pElems );
            }
            p_spec->Release();
          }
        }
        free(pDeviceName);
      }
    }
    pPropBag->Release();
    pMoniker->Release();
  }

  ::CoUninitialize();
}
static gboolean
gst_dshowvideosrc_start (GstBaseSrc * bsrc)
{
  HRESULT hres = S_FALSE;
  GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (bsrc);
  DshowDeviceEntry *device_entry;
  IMoniker *moniker = NULL;

  device_entry = gst_dshow_select_device (&CLSID_VideoInputDeviceCategory,
      src->device, src->device_name, src->device_index);
  if (device_entry == NULL) {
    GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Failed to find device"), (NULL));
    return FALSE;
  }

  g_free (src->device);
  g_free (src->device_name);
  src->device = g_strdup (device_entry->device);
  src->device_name = g_strdup (device_entry->device_name);
  src->device_index = device_entry->device_index;
  moniker = device_entry->moniker;
  device_entry->moniker = NULL;
  gst_dshow_device_entry_free (device_entry);

  src->video_cap_filter = gst_dshow_create_capture_filter (moniker);
  moniker->Release ();
  if (src->video_cap_filter == NULL) {
    GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
        ("Failed to create capture filter for device"), (NULL));
    return FALSE;
  }

  src->caps = gst_dshowvideosrc_getcaps_from_capture_filter (
      src->video_cap_filter, (GList**)&src->pins_mediatypes);
  if (gst_caps_is_empty (src->caps)) {
    GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
        ("Failed to get any caps from devce"), (NULL));
    return FALSE;
  }

  /*
  The filter graph now is created via the IGraphBuilder Interface   
  Code added to build upstream filters, needed for USB Analog TV Tuners / DVD Maker, based on AMCap code.
  by Fabrice Costa <*****@*****.**>
  */

  hres =  CoCreateInstance(CLSID_FilterGraph, NULL,
    CLSCTX_INPROC_SERVER, IID_IGraphBuilder, (LPVOID *) & src->graph_builder );
  if (hres != S_OK || !src->graph_builder ) {
    GST_ERROR
        ("Can't create an instance of the dshow graph builder (error=0x%x)",
        hres);
    goto error;
  } else {
	/*graph builder is derived from IFilterGraph so we can assign it to the old src->filter_graph*/
	src->filter_graph = (IFilterGraph*) src->graph_builder;
  }
  
  /*adding capture graph builder to correctly create upstream filters, Analog TV, TV Tuner */

  hres = CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL,
        CLSCTX_INPROC_SERVER, IID_ICaptureGraphBuilder2, 
        (LPVOID *) & src->capture_builder);
  if ( hres != S_OK || !src->capture_builder ) {	
    GST_ERROR
        ("Can't create an instance of the dshow capture graph builder manager (error=0x%x)",
        hres);
	goto error;
  } else {	
	src->capture_builder->SetFiltergraph(src->graph_builder);
  }

  hres = src->filter_graph->QueryInterface (IID_IMediaFilter,
      (LPVOID *) & src->media_filter);
  if (hres != S_OK || !src->media_filter) {
    GST_ERROR
        ("Can't get IMediacontrol interface from the graph manager (error=0x%x)",
        hres);
    goto error;
  }

  src->dshow_fakesink = new CDshowFakeSink;
  src->dshow_fakesink->AddRef ();

  hres = src->filter_graph->AddFilter (src->video_cap_filter, L"capture");
  if (hres != S_OK) {
    GST_ERROR ("Can't add video capture filter to the graph (error=0x%x)",
        hres);
    goto error;
  }

  /* Finding interfaces really creates the upstream filters */

  hres = src->capture_builder->FindInterface(&PIN_CATEGORY_CAPTURE,
                                      &MEDIATYPE_Interleaved, src->video_cap_filter, 
                                      IID_IAMVideoCompression, (LPVOID *)&src->pVC);
  
  if(hres != S_OK)
  {
	hres = src->capture_builder->FindInterface(&PIN_CATEGORY_CAPTURE,
                                          &MEDIATYPE_Video, src->video_cap_filter, 
                                          IID_IAMVideoCompression, (LPVOID *)&src->pVC);
  }
  
  hres = src->capture_builder->FindInterface(&PIN_CATEGORY_CAPTURE,
                                      &MEDIATYPE_Interleaved,
                                      src->video_cap_filter, IID_IAMStreamConfig, (LPVOID *)&src->pVSC);
  if(hres != S_OK)
  {
	  hres = src->capture_builder->FindInterface(&PIN_CATEGORY_CAPTURE,
											&MEDIATYPE_Video, src->video_cap_filter,
											IID_IAMStreamConfig, (LPVOID *)&src->pVSC);
	  if (hres != S_OK) {
                  /* this means we can't set frame rate (non-DV only) */
		  GST_ERROR ("Error %x: Cannot find VCapture:IAMStreamConfig",	hres);
			goto error;
	  }
  }

  hres = src->filter_graph->AddFilter (src->dshow_fakesink, L"sink");
  if (hres != S_OK) {
    GST_ERROR ("Can't add our fakesink filter to the graph (error=0x%x)", hres);
    goto error;
  }

  return TRUE;

error:
  GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
     ("Failed to build filter graph"), (NULL));

  if (src->dshow_fakesink) {
    src->dshow_fakesink->Release ();
    src->dshow_fakesink = NULL;
  }

  if (src->media_filter) {
    src->media_filter->Release ();
    src->media_filter = NULL;
  }
  if (src->graph_builder) {
    src->graph_builder->Release ();
    src->graph_builder = NULL;
  }
  if (src->capture_builder) {
    src->capture_builder->Release ();
    src->capture_builder = NULL;
  }
  if (src->pVC) {
    src->pVC->Release ();
    src->pVC = NULL;
  }
  if (src->pVSC) {
    src->pVSC->Release ();
    src->pVSC = NULL;
  }

  return FALSE;
}
Пример #13
0
HRESULT TffdshowVideoInputPin::CheckMediaType(const CMediaType* mt)
{
    if (mt->majortype != MEDIATYPE_Video && !(mt->majortype == MEDIATYPE_DVD_ENCRYPTED_PACK && supdvddec)) {
        return VFW_E_TYPE_NOT_ACCEPTED;
    }
    if (mt->subtype == MEDIASUBTYPE_DVD_SUBPICTURE) {
        return VFW_E_TYPE_NOT_ACCEPTED;
    }
    BITMAPINFOHEADER *hdr = NULL, hdr0;

    if (mt->formattype == FORMAT_VideoInfo) {
        VIDEOINFOHEADER *vih = (VIDEOINFOHEADER*)mt->pbFormat;
        hdr = &vih->bmiHeader;
        fixMPEGinAVI(hdr->biCompression);
    } else if (mt->formattype == FORMAT_VideoInfo2) {
        VIDEOINFOHEADER2 *vih2 = (VIDEOINFOHEADER2*)mt->pbFormat;
        hdr = &vih2->bmiHeader;
        fixMPEGinAVI(hdr->biCompression);
    } else if (mt->formattype == FORMAT_MPEGVideo) {
        MPEG1VIDEOINFO *mpeg1info = (MPEG1VIDEOINFO*)mt->pbFormat;
        hdr = &(hdr0 = mpeg1info->hdr.bmiHeader);
        hdr->biCompression = FOURCC_MPG1;
    } else if (mt->formattype == FORMAT_MPEG2Video) {
        MPEG2VIDEOINFO *mpeg2info = (MPEG2VIDEOINFO*)mt->pbFormat;
        hdr = &(hdr0 = mpeg2info->hdr.bmiHeader);
        if (hdr->biCompression == 0 || hdr->biCompression == 0x0038002d) {
            if (mt->subtype == MEDIASUBTYPE_H264_TRANSPORT) {
                hdr->biCompression = FOURCC_H264;
            } else if (mt->subtype == MEDIASUBTYPE_AVC1 || mt->subtype == MEDIASUBTYPE_avc1 || mt->subtype == MEDIASUBTYPE_H264 || mt->subtype == MEDIASUBTYPE_h264 || mt->subtype == MEDIASUBTYPE_CCV1) {
                hdr->biCompression = FOURCC_H264;
            } else {
                hdr->biCompression = FOURCC_MPG2;
            }
        }
    } else if (mt->formattype == FORMAT_TheoraIll) {
        sTheoraFormatBlock *oggFormat = (sTheoraFormatBlock*)mt->pbFormat;
        hdr = &hdr0;
        hdr->biWidth = oggFormat->width;
        hdr->biHeight = oggFormat->height;
        hdr->biCompression = FOURCC_THEO;
    } else if (mt->formattype == FORMAT_RLTheora) {
        hdr = &hdr0;
        hdr->biCompression = FOURCC_THEO;
    } else {
        return VFW_E_TYPE_NOT_ACCEPTED;
    }

    char_t pomS[60];
    DPRINTF(_l("TffdshowVideoInputPin::CheckMediaType: %s, %i, %i"), fourcc2str(hdr2fourcc(hdr, &mt->subtype), pomS, 60), hdr->biWidth, hdr->biHeight);

    /* Information : WMP 11 and Media Center under Vista do not check for uncompressed format anymore, so no way to get
       ffdshow raw video decoder for postprocessing on uncompressed.
       So instead of saying "Media Type not supported", we says it is but only if there is an existing filter that can
       take this format in charge, and then ffdshow will be plugged after this codec (plug is done by TffdshowDecVideo::ConnectCompatibleFilter). */
    int res = getVideoCodecId(hdr, &mt->subtype, NULL);

    OSVERSIONINFO osvi;
    ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
    osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
    GetVersionEx(&osvi);
    ffstring exeFilename(fv->getExefilename());
    exeFilename.ConvertToLowerCase();

    if (res == 0 && pCompatibleFilter == NULL &&
            fv->deci->getParam2(IDFF_alternateUncompressed) == 1 && // Enable WMP11 postprocessing
            fv->deci->getParam2(IDFF_rawv) != 0 && // Raw video not on disabled
            (exeFilename == _l("wmplayer.exe") ||
             exeFilename == _l("ehshell.exe"))) { // Only WMP and Media Center are concerned
        bool doPostProcessing = false;
        if (osvi.dwMajorVersion > 5) { // OS >= VISTA
            doPostProcessing = true;
        } else if (osvi.dwMajorVersion == 5 // If OS=XP, check version of WMP
                   && exeFilename == _l("ehshell.exe")) { // But only for Media Center
            // Read WMP version from the aRegistry
            HKEY hKey = NULL;
            LONG regErr;

            // Read WMP version from the following registry key
            regErr = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _l("SOFTWARE\\Microsoft\\MediaPlayer\\Setup\\Installed Versions"), 0, KEY_READ, &hKey);
            if (regErr != ERROR_SUCCESS) {
                return res == AV_CODEC_ID_NONE ? VFW_E_TYPE_NOT_ACCEPTED : S_OK;
            }

            DWORD dwType;
            BYTE buf[4096] = { '\0' };   // make it big enough for any kind of values
            DWORD dwSize = sizeof(buf);
            regErr = RegQueryValueEx(hKey, _T("wmplayer.exe"), 0, &dwType, buf, &dwSize);

            if (hKey) {
                RegCloseKey(hKey);
            }

            if (regErr != ERROR_SUCCESS || dwType != REG_BINARY) {
                return res == AV_CODEC_ID_NONE ? VFW_E_TYPE_NOT_ACCEPTED : S_OK;
            }

            if (buf[2] >= 0x0b) { // Third byte is the major version number
                doPostProcessing = true;
            }
        }


        if (doPostProcessing) {
            DPRINTF(_l("TffdshowVideoInputPin::CheckMediaType: input format disabled or not supported. Trying to maintain in the graph..."));
            IFilterMapper2 *pMapper = NULL;
            IEnumMoniker *pEnum = NULL;

            HRESULT hr = CoCreateInstance(CLSID_FilterMapper2,
                                          NULL, CLSCTX_INPROC, IID_IFilterMapper2,
                                          (void **) &pMapper);

            if (FAILED(hr)) {
                // Error handling omitted for clarity.
            }

            GUID arrayInTypes[2];
            arrayInTypes[0] = mt->majortype;//MEDIATYPE_Video;
            arrayInTypes[1] = mt->subtype;//MEDIASUBTYPE_dvsd;

            hr = pMapper->EnumMatchingFilters(
                     &pEnum,
                     0,                  // Reserved.
                     TRUE,               // Use exact match?
                     MERIT_DO_NOT_USE + 1, // Minimum merit.
                     TRUE,               // At least one input pin?
                     1,                  // Number of major type/subtype pairs for input.
                     arrayInTypes,       // Array of major type/subtype pairs for input.
                     NULL,               // Input medium.
                     NULL,               // Input pin category.
                     FALSE,              // Must be a renderer?
                     TRUE,               // At least one output pin?
                     0,                  // Number of major type/subtype pairs for output.
                     NULL,               // Array of major type/subtype pairs for output.
                     NULL,               // Output medium.
                     NULL);              // Output pin category.

            // Enumerate the monikers.
            IMoniker *pMoniker;
            ULONG cFetched;

            while (pEnum->Next(1, &pMoniker, &cFetched) == S_OK) {
                IPropertyBag *pPropBag = NULL;
                hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag,
                                             (void **)&pPropBag);

                if (SUCCEEDED(hr)) {
                    // To retrieve the friendly name of the filter, do the following:
                    VARIANT varName;
                    VariantInit(&varName);
                    hr = pPropBag->Read(L"FriendlyName", &varName, 0);
                    if (SUCCEEDED(hr)) {
                        if (varName.pbstrVal == NULL || _strnicmp(FFDSHOW_NAME_L, varName.bstrVal, 22) != 0) {
                            // Display the name in your UI somehow.
                            DPRINTF(_l("TffdshowVideoInputPin::CheckMediaType: compatible filter found (%s)"), varName.pbstrVal);
                            hr = pMoniker->BindToObject(NULL, NULL, IID_IBaseFilter, (void**)&pCompatibleFilter);
                        }
                    }

                    // Now add the filter to the graph. Remember to release pFilter later.
                    IFilterGraph *pGraph = NULL;
                    fv->deci->getGraph(&pGraph);

                    IGraphBuilder *pGraphBuilder = NULL;
                    hr = pGraph->QueryInterface(IID_IGraphBuilder, (void **)&pGraphBuilder);
                    if (hr == S_OK) {
                        pGraphBuilder->AddFilter(pCompatibleFilter, varName.bstrVal);
                    } else {
                        pCompatibleFilter->Release();
                        pCompatibleFilter = NULL;
                    }

                    // Clean up.
                    VariantClear(&varName);
                    pGraphBuilder->Release();
                    pPropBag->Release();
                }
                pMoniker->Release();
                if (pCompatibleFilter != NULL) {
                    break;
                }
            }

            // Clean up.
            pMapper->Release();
            pEnum->Release();
        }
    }
    if (pCompatibleFilter != NULL) {
        return S_OK;
    }
    return res == AV_CODEC_ID_NONE ? VFW_E_TYPE_NOT_ACCEPTED : S_OK;
}
Пример #14
0
// delicious copypasta
static QList<QString> get_camera_names(void) {
    QList<QString> ret;
#if defined(_WIN32)
	// Create the System Device Enumerator.
	HRESULT hr;
	ICreateDevEnum *pSysDevEnum = NULL;
	hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER, IID_ICreateDevEnum, (void **)&pSysDevEnum);
	if (FAILED(hr))
	{
		return ret;
	}
	// Obtain a class enumerator for the video compressor category.
	IEnumMoniker *pEnumCat = NULL;
	hr = pSysDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory, &pEnumCat, 0);

	if (hr == S_OK) {
		// Enumerate the monikers.
		IMoniker *pMoniker = NULL;
		ULONG cFetched;
		while (pEnumCat->Next(1, &pMoniker, &cFetched) == S_OK) {
			IPropertyBag *pPropBag;
			hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag, (void **)&pPropBag);
			if (SUCCEEDED(hr))	{
				// To retrieve the filter's friendly name, do the following:
				VARIANT varName;
				VariantInit(&varName);
				hr = pPropBag->Read(L"FriendlyName", &varName, 0);
				if (SUCCEEDED(hr))
				{
					// Display the name in your UI somehow.
					QString str((QChar*)varName.bstrVal, wcslen(varName.bstrVal));
					ret.append(str);
				}
				VariantClear(&varName);

				////// To create an instance of the filter, do the following:
				////IBaseFilter *pFilter;
				////hr = pMoniker->BindToObject(NULL, NULL, IID_IBaseFilter,
				////	(void**)&pFilter);
				// Now add the filter to the graph. 
				//Remember to release pFilter later.
				pPropBag->Release();
			}
			pMoniker->Release();
		}
		pEnumCat->Release();
	}
	pSysDevEnum->Release();
#else
    for (int i = 0; i < 16; i++) {
        char buf[128];
        sprintf(buf, "/dev/video%d", i);
        if (access(buf, R_OK | W_OK) == 0) {
            ret.append(buf);
        } else {
            continue;
        }
    }
#endif
    return ret;
}
void
VideoDeviceImpl::setup()
{
    HRESULT hr = CoInitializeEx(nullptr, COINIT_MULTITHREADED);
    if (FAILED(hr))
        return fail("Could not initialize video device.");

    hr = CoCreateInstance(
        CLSID_CaptureGraphBuilder2,
        nullptr,
        CLSCTX_INPROC_SERVER,
        IID_ICaptureGraphBuilder2,
        (void**) &cInterface->captureGraph_);
    if (FAILED(hr))
        return fail("Could not create the Filter Graph Manager");

    hr = CoCreateInstance(CLSID_FilterGraph,
        nullptr,
        CLSCTX_INPROC_SERVER,IID_IGraphBuilder,
        (void**) &cInterface->graph_);
    if (FAILED(hr))
        return fail("Could not add the graph builder!");

    hr = cInterface->captureGraph_->SetFiltergraph(cInterface->graph_);
    if (FAILED(hr))
        return fail("Could not set filtergraph.");

    ICreateDevEnum *pSysDevEnum = nullptr;
    hr = CoCreateInstance(CLSID_SystemDeviceEnum,
        nullptr,
        CLSCTX_INPROC_SERVER,
        IID_ICreateDevEnum,
        (void **)&pSysDevEnum);
    if (FAILED(hr))
        return fail("Could not create the enumerator!");

    IEnumMoniker* pEnumCat = nullptr;
    hr = pSysDevEnum->CreateClassEnumerator(
        CLSID_VideoInputDeviceCategory,
        &pEnumCat,
        0);
    if (SUCCEEDED(hr)) {
        // Auto-deletion at if {} exist or at exception
        auto IEnumMonikerDeleter = [](IEnumMoniker* p){ p->Release(); };
        std::unique_ptr<IEnumMoniker, decltype(IEnumMonikerDeleter)&> pEnumCatGuard {pEnumCat, IEnumMonikerDeleter};

        IMoniker *pMoniker = nullptr;
        ULONG cFetched;
        unsigned int deviceCounter = 0;
        while ((pEnumCatGuard->Next(1, &pMoniker, &cFetched) == S_OK))
        {
            if (deviceCounter == this->id) {
                IPropertyBag *pPropBag;
                hr = pMoniker->BindToStorage(
                    0,
                    0,
                    IID_IPropertyBag,
                    (void **)&pPropBag);
                if (SUCCEEDED(hr)) {
                    VARIANT varName;
                    VariantInit(&varName);
                    hr = pPropBag->Read(L"FriendlyName", &varName, 0);
                    if (SUCCEEDED(hr)) {
                        int l = WideCharToMultiByte(
                            CP_UTF8,
                            0,
                            varName.bstrVal,
                            -1,
                            0, 0, 0, 0);
                        auto tmp = new char[l];
                        WideCharToMultiByte(
                            CP_UTF8,
                            0,
                            varName.bstrVal,
                            -1,
                            tmp,
                            l,
                            0, 0);
                        this->name = std::string(tmp);
                        this->device = std::string("video=") + this->name;
                        hr = pMoniker->BindToObject(
                            nullptr, nullptr,
                            IID_IBaseFilter,
                            (void**)&cInterface->videoInputFilter_);
                        if (SUCCEEDED(hr))
                            hr = cInterface->graph_->AddFilter(
                                cInterface->videoInputFilter_,
                                varName.bstrVal);
                        else {
                            fail("Could not add filter to video device.");
                        }
                        hr = cInterface->captureGraph_->FindInterface(
                            &PIN_CATEGORY_PREVIEW,
                            &MEDIATYPE_Video,
                            cInterface->videoInputFilter_,
                            IID_IAMStreamConfig,
                            (void **)&cInterface->streamConf_);
                        if(FAILED(hr)) {
                            hr = cInterface->captureGraph_->FindInterface(
                                &PIN_CATEGORY_CAPTURE,
                                &MEDIATYPE_Video,
                                cInterface->videoInputFilter_,
                                IID_IAMStreamConfig,
                                (void **)&cInterface->streamConf_);
                            if (FAILED(hr)) {
                                fail("Couldn't config the stream!");
                            }
                        }
                        break; // Device found
                    }
                    VariantClear(&varName);
                    pPropBag->Release();
                    pPropBag = nullptr;
                    pMoniker->Release();
                    pMoniker = nullptr;
                }
            }
            deviceCounter++;
        }
        if (SUCCEEDED(hr)) {
            int piCount;
            int piSize;
            cInterface->streamConf_->GetNumberOfCapabilities(&piCount, &piSize);
            AM_MEDIA_TYPE *pmt;
            VIDEO_STREAM_CONFIG_CAPS pSCC;
            for (int i = 0; i < piCount; i++) {
                cInterface->streamConf_->GetStreamCaps(i, &pmt, (BYTE*)&pSCC);
                if (pmt->formattype == FORMAT_VideoInfo) {
                    auto videoInfo = (VIDEOINFOHEADER*) pmt->pbFormat;
                    sizeList_.emplace_back(videoInfo->bmiHeader.biWidth, videoInfo->bmiHeader.biHeight);
                    rateList_[sizeList_.back()].emplace_back(1e7, pSCC.MinFrameInterval);
                    rateList_[sizeList_.back()].emplace_back(1e7, pSCC.MaxFrameInterval);
                    capMap_[sizeList_.back()] = pmt;
                }
            }
        }
    }
    pSysDevEnum->Release();
    pSysDevEnum = NULL;
}
Пример #16
0
QStringList getCaptureDevices(GUID catGuid) //, QList<IMoniker*>& monList)
{
    // Create the System Device Enumerator.
    QStringList list;
    HRESULT hr;
    ICreateDevEnum *pDevEnum = NULL;
    IEnumMoniker *pEnum = NULL;

    // тест-источники
    if( catGuid == CLSID_VideoInputDeviceCategory){
        list.append("VS-A");
        list.append("VS-B");
    }else{
        list.append("AS-A");
        list.append("AS-B");
    }

    //

    hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
                          IID_ICreateDevEnum, (void **)&pDevEnum);
    //CHECK(hr, "create SystemDeviceEnum");

    // заполнение списка видео-источников
    hr = pDevEnum->CreateClassEnumerator(catGuid,&pEnum, 0);
    //CHECK(hr, "create ClassEnumerator");

    if(pEnum == NULL)
        qDebug() << "bad pEnum";

    IMoniker *pMoniker = NULL;
    while ( (pEnum != NULL) && pEnum->Next(1, &pMoniker, NULL) == S_OK)
    {
        IPropertyBag *pPropBag;
        hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag, (void **)&pPropBag);
        if (SUCCEEDED(hr))
        {
                    // To retrieve the filter's friendly name, do the following:
            VARIANT varName;
            VariantInit(&varName);
            hr = pPropBag->Read(L"FriendlyName", &varName, 0);
            if (SUCCEEDED(hr))
            {
                char* pN = _com_util::ConvertBSTRToString(varName.bstrVal);
                QString txt = QString::fromLocal8Bit(pN); // иначе кракозябры вместо кириллицы

                list.append(txt);
            }

            VariantClear(&varName);

            pPropBag->Release();
        }
        pMoniker->Release();
    }

    if(pEnum != NULL)
        pEnum->Release();

    if(pDevEnum != NULL)
        pDevEnum->Release();

    return list;
}
Пример #17
0
int  Captura::Enumerar(HWND hList)
{
	if (!hList)
		return  -1;

	
	int id = 0;

	//CComPtr<ICreateDevEnum> pCreateDevEnum;
    ICreateDevEnum * pCreateDevEnum;
    HRESULT hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
			  IID_ICreateDevEnum, (void**)&pCreateDevEnum);
    if (hr != NOERROR)
	{

		return -1;
	}



//    CComPtr<IEnumMoniker> pEm;
    IEnumMoniker *pEm;
    hr = pCreateDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,
								&pEm, 0);
    if (hr != NOERROR) 
	{

		return -1 ;
    }

    pEm->Reset();
    ULONG cFetched;
    IMoniker *pM;
    while(hr = pEm->Next(1, &pM, &cFetched), hr==S_OK)
    {
		IPropertyBag *pBag;
		hr = pM->BindToStorage(0, 0, IID_IPropertyBag, (void **)&pBag);
		if(SUCCEEDED(hr)) 
		{
			VARIANT var;
			var.vt = VT_BSTR;
			hr = pBag->Read(L"FriendlyName", &var, NULL);
			if (hr == NOERROR) 
			{
				TCHAR str[2048];		


				id++;
				WideCharToMultiByte(CP_ACP,0,var.bstrVal, -1, str, 2048, NULL, NULL);


				(long)SendMessage(hList, CB_ADDSTRING, 0,(LPARAM)str);

				SysFreeString(var.bstrVal);
			}
			pBag->Release();
		}
		pM->Release();
    }
	return id;
}
/** Accesses the correct visual studio instance if possible. */
EAccessVisualStudioResult AccessVisualStudioViaDTE(TComPtr<EnvDTE::_DTE>& OutDTE, const FString& InSolutionPath, const TArray<FVisualStudioSourceCodeAccessor::VisualStudioLocation>& InLocations)
{
	EAccessVisualStudioResult AccessResult = EAccessVisualStudioResult::VSInstanceIsNotOpen;

	// Open the Running Object Table (ROT)
	IRunningObjectTable* RunningObjectTable;
	if(SUCCEEDED(GetRunningObjectTable(0, &RunningObjectTable)) && RunningObjectTable)
	{
		IEnumMoniker* MonikersTable;
		if(SUCCEEDED(RunningObjectTable->EnumRunning(&MonikersTable)))
		{
			MonikersTable->Reset();

			// Look for all visual studio instances in the ROT
			IMoniker* CurrentMoniker;
			while(AccessResult != EAccessVisualStudioResult::VSInstanceIsOpen && MonikersTable->Next(1, &CurrentMoniker, NULL) == S_OK)
			{
				IBindCtx* BindContext;
				LPOLESTR OutName;
				if(SUCCEEDED(CreateBindCtx(0, &BindContext)) && SUCCEEDED(CurrentMoniker->GetDisplayName(BindContext, NULL, &OutName)))
				{
					if(IsVisualStudioDTEMoniker(FString(OutName), InLocations))
					{
						TComPtr<IUnknown> ComObject;
						if(SUCCEEDED(RunningObjectTable->GetObject(CurrentMoniker, &ComObject)))
						{
							TComPtr<EnvDTE::_DTE> TempDTE;
							if (SUCCEEDED(TempDTE.FromQueryInterface(__uuidof(EnvDTE::_DTE), ComObject)))
							{
								// Get the solution path for this instance
								// If it equals the solution we would have opened above in RunVisualStudio(), we'll take that
								TComPtr<EnvDTE::_Solution> Solution;
								BSTR OutPath = nullptr;
								if (SUCCEEDED(TempDTE->get_Solution(&Solution)) &&
									SUCCEEDED(Solution->get_FullName(&OutPath)))
								{
									FString Filename(OutPath);
									FPaths::NormalizeFilename(Filename);

									if (Filename == InSolutionPath)
									{
										OutDTE = TempDTE;
										AccessResult = EAccessVisualStudioResult::VSInstanceIsOpen;
									}

									SysFreeString(OutPath);
								}
								else
								{
									UE_LOG(LogVSAccessor, Warning, TEXT("Visual Studio is open but could not be queried - it may be blocked by a modal operation"));
									AccessResult = EAccessVisualStudioResult::VSInstanceIsBlocked;
								}
							}
							else
							{
								UE_LOG(LogVSAccessor, Warning, TEXT("Could not get DTE interface from returned Visual Studio instance"));
								AccessResult = EAccessVisualStudioResult::VSInstanceIsBlocked;
							}
						}
						else
						{
							UE_LOG(LogVSAccessor, Warning, TEXT("Couldn't get Visual Studio COM object"));
							AccessResult = EAccessVisualStudioResult::VSInstanceUnknown;
						}
					}
				}
				else
				{
					UE_LOG(LogVSAccessor, Warning, TEXT("Couldn't get display name"));
					AccessResult = EAccessVisualStudioResult::VSInstanceUnknown;
				}
				BindContext->Release();
				CurrentMoniker->Release();
			}
			MonikersTable->Release();
		}
		else
		{
			UE_LOG(LogVSAccessor, Warning, TEXT("Couldn't enumerate ROT table"));
			AccessResult = EAccessVisualStudioResult::VSInstanceUnknown;
		}
		RunningObjectTable->Release();
	}
	else
	{
		UE_LOG(LogVSAccessor, Warning, TEXT("Couldn't get ROT table"));
		AccessResult = EAccessVisualStudioResult::VSInstanceUnknown;
	}

	return AccessResult;
}
Пример #19
0
static int v4w_configure_videodevice(V4wState *s)
{
    // Initialize COM
    CoInitialize(NULL);

    // get a Graph
    HRESULT hr= CoCreateInstance (CLSID_FilterGraph,
                                  NULL,
                                  CLSCTX_INPROC_SERVER,
                                  IID_IGraphBuilder, //IID_IBaseFilter,
                                  (void **)&s->m_pGraph);
    if(FAILED(hr))
    {
        return -1;
    }

    // get a CaptureGraphBuilder2
    hr= CoCreateInstance (CLSID_CaptureGraphBuilder2,
                          NULL,
                          CLSCTX_INPROC_SERVER,
                          IID_ICaptureGraphBuilder2, //IID_IBaseFilter,
                          (void **)&s->m_pBuilder);
    if(FAILED(hr))
    {
        return -2;
    }

    // connect capture graph builder with the graph
    s->m_pBuilder->SetFiltergraph(s->m_pGraph);

    // get mediacontrol so we can start and stop the filter graph
    hr=s->m_pGraph->QueryInterface (IID_IMediaControl, (void **)&s->m_pControl);
    if(FAILED(hr))
    {
        return -3;
    }


    ICreateDevEnum *pCreateDevEnum = NULL;
    IEnumMoniker *pEnumMoniker = NULL;
    IMoniker *pMoniker = NULL;

    ULONG nFetched = 0;

    hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
                          IID_ICreateDevEnum, (PVOID *)&pCreateDevEnum);
    if(FAILED(hr))
    {
        return -4;
    }

    hr = pCreateDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,
            &pEnumMoniker, 0);
    if (FAILED(hr) || pEnumMoniker == NULL) {
        //printf("no device\n");
        return -5;
    }

    pEnumMoniker->Reset();

    int pos=0;
    while(S_OK == pEnumMoniker->Next(1, &pMoniker, &nFetched) )
    {
        IPropertyBag *pBag;
        hr = pMoniker->BindToStorage( 0, 0, IID_IPropertyBag, (void**) &pBag );
        if( hr != S_OK )
            continue;

        if (s->dev[0]=='\0')
            break;

        VARIANT var;
        VariantInit(&var);
        hr = pBag->Read( L"FriendlyName", &var, NULL );
        if( hr != S_OK )
        {
            pMoniker->Release();
            continue;
        }
        //USES_CONVERSION;
        char szName[256];

        WideCharToMultiByte(CP_UTF8,0,var.bstrVal,-1,szName,256,0,0);
        VariantClear(&var);

        if (strcmp(szName, s->dev)==0)
            break;

        pMoniker->Release();
        pBag->Release();
        pMoniker=NULL;
        pBag=NULL;
    }

    if(pMoniker==NULL)
    {
        int pos=0;
        while(S_OK == pEnumMoniker->Next(1, &pMoniker, &nFetched) )
        {
            IPropertyBag *pBag;
            hr = pMoniker->BindToStorage( 0, 0, IID_IPropertyBag, (void**) &pBag );
            if( hr != S_OK )
                continue;
        }

    }

    if(pMoniker==NULL)
    {
        return -6;
    }

    hr = pMoniker->BindToObject(0, 0, IID_IBaseFilter, (void**)&s->m_pDeviceFilter );
    if(FAILED(hr))
    {
        return -7;
    }

    s->m_pGraph->AddFilter(s->m_pDeviceFilter, L"Device Filter");

    pMoniker->Release();
    pEnumMoniker->Release();
    pCreateDevEnum->Release();


    GUID pPinCategory;

    if (try_format(s->m_pDeviceFilter, s->pix_fmt, &pPinCategory)==0)
        s->pix_fmt = s->pix_fmt;
    else if (try_format(s->m_pDeviceFilter,MS_YUV420P, &pPinCategory)==0)
        s->pix_fmt = MS_YUV420P;
    else if (try_format(s->m_pDeviceFilter,MS_YUY2, &pPinCategory)==0)
        s->pix_fmt = MS_YUY2;
    else if (try_format(s->m_pDeviceFilter,MS_YUYV, &pPinCategory)==0)
        s->pix_fmt = MS_YUYV;
    else if (try_format(s->m_pDeviceFilter,MS_UYVY, &pPinCategory)==0)
        s->pix_fmt = MS_UYVY;
    else if (try_format(s->m_pDeviceFilter,MS_RGB24, &pPinCategory)==0)
        s->pix_fmt = MS_RGB24;
    else
    {
        ms_error("Unsupported video pixel format.");
        return -8;
    }

    if (s->pix_fmt == MS_YUV420P)
        ms_message("Driver supports YUV420P, using that format.");
    else if (s->pix_fmt == MS_YUY2)
        ms_message("Driver supports YUY2 (YUYV), using that format.");
    else if (s->pix_fmt == MS_YUYV)
        ms_message("Driver supports YUV422, using that format.");
    else if (s->pix_fmt == MS_UYVY)
        ms_message("Driver supports UYVY, using that format.");
    else if (s->pix_fmt == MS_RGB24)
        ms_message("Driver supports RGB24, using that format.");

    if (try_format_size(s, s->pix_fmt, s->vsize.width, s->vsize.height, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", s->vsize.width, s->vsize.height);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_QCIF_W, MS_VIDEO_SIZE_QCIF_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_QCIF_W, MS_VIDEO_SIZE_QCIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_CIF_W, MS_VIDEO_SIZE_CIF_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_CIF_W, MS_VIDEO_SIZE_CIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_4CIF_W, MS_VIDEO_SIZE_4CIF_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_4CIF_W, MS_VIDEO_SIZE_4CIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_QVGA_W, MS_VIDEO_SIZE_QVGA_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_QVGA_W, MS_VIDEO_SIZE_QVGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_QQVGA_W, MS_VIDEO_SIZE_QQVGA_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_QQVGA_W, MS_VIDEO_SIZE_QQVGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_NS1_W, MS_VIDEO_SIZE_NS1_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_NS1_W, MS_VIDEO_SIZE_NS1_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_QSIF_W, MS_VIDEO_SIZE_QSIF_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_QSIF_W, MS_VIDEO_SIZE_QSIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_SIF_W, MS_VIDEO_SIZE_SIF_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_SIF_W, MS_VIDEO_SIZE_SIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_VGA_W, MS_VIDEO_SIZE_VGA_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_VGA_W, MS_VIDEO_SIZE_VGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_SDTV_W, MS_VIDEO_SIZE_SDTV_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_SDTV_W, MS_VIDEO_SIZE_SDTV_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_288P_W, MS_VIDEO_SIZE_288P_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_288P_W, MS_VIDEO_SIZE_288P_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_448P_W, MS_VIDEO_SIZE_448P_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_448P_W, MS_VIDEO_SIZE_448P_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_576P_W, MS_VIDEO_SIZE_576P_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_576P_W, MS_VIDEO_SIZE_576P_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_720P_W, MS_VIDEO_SIZE_720P_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_720P_W, MS_VIDEO_SIZE_720P_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_1080P_W, MS_VIDEO_SIZE_1080P_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_1080P_W, MS_VIDEO_SIZE_1080P_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_4SIF_W, MS_VIDEO_SIZE_4SIF_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_4SIF_W, MS_VIDEO_SIZE_4SIF_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_SVGA_W, MS_VIDEO_SIZE_SVGA_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_SVGA_W, MS_VIDEO_SIZE_SVGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_XGA_W, MS_VIDEO_SIZE_XGA_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_XGA_W, MS_VIDEO_SIZE_XGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_WXGA_W, MS_VIDEO_SIZE_WXGA_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_WXGA_W, MS_VIDEO_SIZE_WXGA_H);
    else if (try_format_size(s, s->pix_fmt, MS_VIDEO_SIZE_HDTVP_W, MS_VIDEO_SIZE_HDTVP_H, &pPinCategory)==0)
        ms_message("Selected Size: %ix%i.", MS_VIDEO_SIZE_HDTVP_W, MS_VIDEO_SIZE_HDTVP_H);
    else
    {
        ms_error("No supported size found for format.");
        /* size not supported? */
        return -9;
    }

    return 0;
}
Пример #20
0
/*
 * Enumerate all video devices
 *
 * See also:
 *
 * Using the System Device Enumerator:
 *     http://msdn2.microsoft.com/en-us/library/ms787871.aspx
 */
int enum_devices()
{
	HRESULT hr;

	printf("Enumerating video input devices ...\n");

	// Create the System Device Enumerator.
	ICreateDevEnum *pSysDevEnum = NULL;
	hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
		IID_ICreateDevEnum, (void **)&pSysDevEnum);
	if(FAILED(hr))
	{
		fprintf(stderr, "ERROR: Unable to create system device enumerator.\n");
		return hr;
	}

	// Obtain a class enumerator for the video input device category.
	IEnumMoniker *pEnumCat = NULL;
	hr = pSysDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory, &pEnumCat, 0);

	if(hr == S_OK) 
	{
		// Enumerate the monikers.
		IMoniker *pMoniker = NULL;
		ULONG cFetched;
		while(pEnumCat->Next(1, &pMoniker, &cFetched) == S_OK)
		{
			IPropertyBag *pPropBag;
			hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag, 
				(void **)&pPropBag);
			if(SUCCEEDED(hr))
			{
				// To retrieve the filter's friendly name, do the following:
				VARIANT varName;
				VariantInit(&varName);
				hr = pPropBag->Read(L"FriendlyName", &varName, 0);
				if (SUCCEEDED(hr))
				{
					// Display the name in your UI somehow.
					wprintf(L"  Found device: %s\n", varName.bstrVal);
				}
				VariantClear(&varName);

				// To create an instance of the filter, do the following:
				IBaseFilter *pFilter;
				hr = pMoniker->BindToObject(NULL, NULL, IID_IBaseFilter,
					(void**)&pFilter);
				
				process_filter(pFilter);

				//Remember to release pFilter later.
				pPropBag->Release();
			}
			pMoniker->Release();
		}
		pEnumCat->Release();
	}
	pSysDevEnum->Release();

	return 0;
}
Пример #21
0
bool directx_camera_server::open_and_find_parameters(const int which, unsigned width, unsigned height)
{
  HRESULT hr;

  //-------------------------------------------------------------------
  // Create COM and DirectX objects needed to access a video stream.

  // Initialize COM.  This must have a matching uninitialize somewhere before
  // the object is destroyed.
#ifdef	DEBUG
  printf("directx_camera_server::open_and_find_parameters(): Before CoInitialize\n");
#endif
  CoInitialize(NULL);

  // Create the filter graph manager
#ifdef	DEBUG
  printf("directx_camera_server::open_and_find_parameters(): Before CoCreateInstance FilterGraph\n");
#endif
  CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER, 
		      IID_IGraphBuilder, (void **)&_pGraph);
  if (_pGraph == NULL) {
    fprintf(stderr, "directx_camera_server::open_and_find_parameters(): Can't create graph manager\n");
    return false;
  }
  _pGraph->QueryInterface(IID_IMediaControl, (void **)&_pMediaControl);
  _pGraph->QueryInterface(IID_IMediaEvent, (void **)&_pEvent);

  // Create the Capture Graph Builder.
#ifdef	DEBUG
  printf("directx_camera_server::open_and_find_parameters(): Before CoCreateInstance CaptureGraphBuilder2\n");
#endif
  CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC, 
      IID_ICaptureGraphBuilder2, (void **)&_pBuilder);
  if (_pBuilder == NULL) {
    fprintf(stderr, "directx_camera_server::open_and_find_parameters(): Can't create graph builder\n");
    return false;
  }

  // Associate the graph with the builder.
#ifdef	DEBUG
  printf("directx_camera_server::open_and_find_parameters(): Before SetFilterGraph\n");
#endif
  _pBuilder->SetFiltergraph(_pGraph);

  //-------------------------------------------------------------------
  // Go find a video device to use: in this case, we are using the Nth
  // one we find, where the number N is the "which" parameter.

  // Create the system device enumerator.
#ifdef	DEBUG
  printf("directx_camera_server::open_and_find_parameters(): Before CoCreateInstance SystemDeviceEnum\n");
#endif
  ICreateDevEnum *pDevEnum = NULL;
  CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC, 
      IID_ICreateDevEnum, (void **)&pDevEnum);
  if (pDevEnum == NULL) {
    fprintf(stderr, "directx_camera_server::open_and_find_parameters(): Can't create device enumerator\n");
    return false;
  }

  // Create an enumerator for video capture devices.
#ifdef	DEBUG
  printf("directx_camera_server::open_and_find_parameters(): Before CreateClassEnumerator\n");
#endif
  IEnumMoniker *pClassEnum = NULL;
  pDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory, &pClassEnum, 0);
  if (pClassEnum == NULL) {
    fprintf(stderr, "directx_camera_server::open_and_find_parameters(): Can't create video enumerator (no cameras?)\n");
    pDevEnum->Release();
    return false;
  }

#ifdef	DEBUG
  printf("directx_camera_server::open_and_find_parameters(): Before Loop over enumerators\n");
#endif
  ULONG cFetched;
  IMoniker *pMoniker = NULL;
  IBaseFilter *pSrc = NULL;
  // Skip (which - 1) cameras
  int i;
  for (i = 0; i < which-1 ; i++) {
    if (pClassEnum->Next(1, &pMoniker, &cFetched) != S_OK) {
      fprintf(stderr,"directx_camera_server::open_and_find_parameters(): Can't open camera (not enough cameras)\n");
      pMoniker->Release();
      return false;
    }
  }
  // Take the next camera and bind it
  if (pClassEnum->Next(1, &pMoniker, &cFetched) == S_OK) {
    // Bind the first moniker to a filter object.
    pMoniker->BindToObject(0, 0, IID_IBaseFilter, (void**)&pSrc);
    pMoniker->Release();
  } else {
    fprintf(stderr,"directx_camera_server::open_and_find_parameters(): Can't open camera (not enough cameras)\n");
    pMoniker->Release();
    return false;
  }

  pClassEnum->Release();
  pDevEnum->Release();

  //-------------------------------------------------------------------
  // Construct the sample grabber callback handler that will be used
  // to receive image data from the sample grabber.
  if ( (_pCallback = new directx_samplegrabber_callback()) == NULL) {
    fprintf(stderr,"directx_camera_server::open_and_find_parameters(): Can't create sample grabber callback handler (out of memory?)\n");
    return false;
  }

  //-------------------------------------------------------------------
  // Construct the sample grabber that will be used to snatch images from
  // the video stream as they go by.  Set its media type and callback.

  // Create the Sample Grabber.
#ifdef	DEBUG
  printf("directx_camera_server::open_and_find_parameters(): Before CoCreateInstance SampleGrabber\n");
#endif
  CoCreateInstance(CLSID_SampleGrabber, NULL, CLSCTX_INPROC_SERVER,
      IID_IBaseFilter, reinterpret_cast<void**>(&_pSampleGrabberFilter));
  if (_pSampleGrabberFilter == NULL) {
    fprintf(stderr,"directx_camera_server::open_and_find_parameters(): Can't get SampleGrabber filter (not DirectX 8.1+?)\n");
    return false;
  }
#ifdef	DEBUG
  printf("directx_camera_server::open_and_find_parameters(): Before QueryInterface\n");
#endif
  _pSampleGrabberFilter->QueryInterface(IID_ISampleGrabber,
      reinterpret_cast<void**>(&_pGrabber));

  // Set the media type to video
#ifdef	DEBUG
  printf("directx_camera_server::open_and_find_parameters(): Before SetMediaType\n");
#endif
  AM_MEDIA_TYPE mt;
  // Ask for video media producers that produce 8-bit RGB
  ZeroMemory(&mt, sizeof(AM_MEDIA_TYPE));
  mt.majortype = MEDIATYPE_Video;	  // Ask for video media producers
  mt.subtype = MEDIASUBTYPE_RGB24;	  // Ask for 8 bit RGB
  _pGrabber->SetMediaType(&mt);

  //-------------------------------------------------------------------
  // Ask for the video resolution that has been passed in.
  // This code is based on
  // intuiting that we need to use the SetFormat call on the IAMStreamConfig
  // interface; this interface is described in the help pages.
  // If the width and height are specified as 0, then they are not set
  // in the header, letting them use whatever is the default.
  if ( (width != 0) && (height != 0) ) {
    _pBuilder->FindInterface(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video, pSrc,
			      IID_IAMStreamConfig, (void **)&_pStreamConfig);
    if (_pStreamConfig == NULL) {
      fprintf(stderr,"directx_camera_server::open_and_find_parameters(): Can't get StreamConfig interface\n");
      return false;
    }

    ZeroMemory(&mt, sizeof(AM_MEDIA_TYPE));
    mt.majortype = MEDIATYPE_Video;	  // Ask for video media producers
    mt.subtype = MEDIASUBTYPE_RGB24;	  // Ask for 8 bit RGB
    mt.pbFormat = (BYTE*)CoTaskMemAlloc(sizeof(VIDEOINFOHEADER));
    VIDEOINFOHEADER *pVideoHeader = (VIDEOINFOHEADER*)mt.pbFormat;
    ZeroMemory(pVideoHeader, sizeof(VIDEOINFOHEADER));
    pVideoHeader->bmiHeader.biBitCount = 24;
    pVideoHeader->bmiHeader.biWidth = width;
    pVideoHeader->bmiHeader.biHeight = height;
    pVideoHeader->bmiHeader.biPlanes = 1;
    pVideoHeader->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
    pVideoHeader->bmiHeader.biSizeImage = DIBSIZE(pVideoHeader->bmiHeader);

    // Set the format type and size.
    mt.formattype = FORMAT_VideoInfo;
    mt.cbFormat = sizeof(VIDEOINFOHEADER);

    // Set the sample size.
    mt.bFixedSizeSamples = TRUE;
    mt.lSampleSize = DIBSIZE(pVideoHeader->bmiHeader);

    // Make the call to actually set the video type to what we want.
    if (_pStreamConfig->SetFormat(&mt) != S_OK) {
      fprintf(stderr,"directx_camera_server::open_and_find_parameters(): Can't set resolution to %dx%d\n",
	pVideoHeader->bmiHeader.biWidth, pVideoHeader->bmiHeader.biHeight);
      return false;
    }

    // Clean up the pbFormat header memory we allocated above.
    CoTaskMemFree(mt.pbFormat);
  }

  //-------------------------------------------------------------------
  // Create a NULL renderer that will be used to discard the video frames
  // on the output pin of the sample grabber

#ifdef	DEBUG
  printf("directx_camera_server::open_and_find_parameters(): Before CoCreateInstance NullRenderer\n");
#endif
  IBaseFilter *pNull = NULL;
  CoCreateInstance(CLSID_NullRenderer, NULL, CLSCTX_INPROC_SERVER,
      IID_IBaseFilter, reinterpret_cast<void**>(&pNull));

  //-------------------------------------------------------------------
  // Build the filter graph.  First add the filters and then connect them.

  // pSrc is the capture filter for the video device we found above.
  _pGraph->AddFilter(pSrc, L"Video Capture");

  // Add the sample grabber filter
  _pGraph->AddFilter(_pSampleGrabberFilter, L"SampleGrabber");

  // Add the null renderer filter
  _pGraph->AddFilter(pNull, L"NullRenderer");

  // Connect the output of the video reader to the sample grabber input
  ConnectTwoFilters(_pGraph, pSrc, _pSampleGrabberFilter);

  // Connect the output of the sample grabber to the NULL renderer input
  ConnectTwoFilters(_pGraph, _pSampleGrabberFilter, pNull);

  //-------------------------------------------------------------------
  // XXX See if this is a video tuner card by querying for that interface.
  // Set it to read the video channel if it is one.
  IAMTVTuner  *pTuner = NULL;
  hr = _pBuilder->FindInterface(NULL, NULL, pSrc, IID_IAMTVTuner, (void**)&pTuner);
  if (pTuner != NULL) {
#ifdef	DEBUG
    printf("directx_camera_server::open_and_find_parameters(): Found a TV Tuner!\n");
#endif

    //XXX Put code here.
    // Set the first input pin to use the cable as input
    hr = pTuner->put_InputType(0, TunerInputCable);
    if (FAILED(hr)) {
      fprintf(stderr,"directx_camera_server::open_and_find_parameters(): Can't set input to cable\n");
    }

    // Set the channel on the video to be baseband (is this channel zero?)
    hr = pTuner->put_Channel(0, -1, -1);
    if (FAILED(hr)) {
      fprintf(stderr,"directx_camera_server::open_and_find_parameters(): Can't set channel\n");
    }

    pTuner->Release();
  }
  

  //-------------------------------------------------------------------
  // Find _num_rows and _num_columns in the video stream.
  _pGrabber->GetConnectedMediaType(&mt);
  VIDEOINFOHEADER *pVih;
  if (mt.formattype == FORMAT_VideoInfo) {
      pVih = reinterpret_cast<VIDEOINFOHEADER*>(mt.pbFormat);
  } else {
    fprintf(stderr,"directx_camera_server::open_and_find_parameters(): Can't get video header type\n");
    return false;
  }

  // Number of rows and columns.  This is different if we are using a target
  // rectangle (rcTarget) than if we are not.
  if (IsRectEmpty(&pVih->rcTarget)) {
    _num_columns = pVih->bmiHeader.biWidth;
    _num_rows = pVih->bmiHeader.biHeight;
  } else {
    _num_columns = pVih->rcTarget.right;
    _num_rows = pVih->bmiHeader.biHeight;
    printf("XXX directx_camera_server::open_and_find_parameters(): Warning: may not work correctly with target rectangle\n");
  }
  _minX = 0;
  _maxX = _num_columns - 1;
  _minY = 0;
  _maxY = _num_rows - 1;
#ifdef DEBUG
  printf("Got %dx%d video\n", _num_columns, _num_rows);
#endif

  // Make sure that the image is not compressed and that we have 8 bits
  // per pixel.
  if (pVih->bmiHeader.biCompression != BI_RGB) {
    fprintf(stderr,"directx_camera_server::open_and_find_parameters(): Compression not RGB\n");
    switch (pVih->bmiHeader.biCompression) {
      case BI_RLE8:
	fprintf(stderr,"  (It is BI_RLE8)\n");
	break;
      case BI_RLE4:
	fprintf(stderr,"  (It is BI_RLE4)\n");
      case BI_BITFIELDS:
	fprintf(stderr,"  (It is BI_BITFIELDS)\n");
	break;
      default:
	fprintf(stderr,"  (Unknown compression type)\n");
    }
    return false;
  }
  int BytesPerPixel = pVih->bmiHeader.biBitCount / 8;
  if (BytesPerPixel != 3) {
    fprintf(stderr,"directx_camera_server::open_and_find_parameters(): Not 3 bytes per pixel (%d)\n",
      pVih->bmiHeader.biBitCount);
    return false;
  }

  // A negative height indicates that the images are stored non-inverted in Y
  // Not sure what to do with images that have negative height -- need to
  // read the book some more to find out.
  if (_num_rows < 0) {
    fprintf(stderr,"directx_camera_server::open_and_find_parameters(): Num Rows is negative (internal error)\n");
    return false;
  }

  // Find the stride to take when moving from one row of video to the
  // next.  This is rounded up to the nearest DWORD.
  _stride = (_num_columns * BytesPerPixel + 3) & ~3;

  // Set the callback, where '0' means 'use the SampleCB callback'
  _pGrabber->SetCallback(_pCallback, 0);

  //-------------------------------------------------------------------
  // Release resources that won't be used later and return
  pSrc->Release();
  pNull->Release();
  return true;
}
Пример #22
0
static int v4w_open_videodevice(V4wState *s, int format, MSVideoSize *vsize)
{
	// Initialize COM
	CoInitialize(NULL);

	// get a Graph
	HRESULT hr=s->m_pGraph.CoCreateInstance(CLSID_FilterGraph);
	if(FAILED(hr))
	{
		return -1;
	}

	// get a CaptureGraphBuilder2
#if !defined(_WIN32_WCE)
	hr=s->m_pBuilder.CoCreateInstance(CLSID_CaptureGraphBuilder2);
#else
	hr=s->m_pBuilder.CoCreateInstance(CLSID_CaptureGraphBuilder);
#endif
	if(FAILED(hr))
	{
		return -2;
	}

	// connect capture graph builder with the graph
	s->m_pBuilder->SetFiltergraph(s->m_pGraph);

	// get mediacontrol so we can start and stop the filter graph
	hr=s->m_pGraph.QueryInterface(&(s->m_pControl));
	if(FAILED(hr))
	{
		return -3;
	}

	// get DXFilter
	s->m_pDXFilter = new CDXFilter(NULL, &hr, FALSE);
	if(s->m_pDXFilter==NULL)
	{
		return -4;
	}
	s->m_pDXFilter->AddRef();
	if(FAILED(hr))
	{
		return -4;
	}

	CMediaType mt;
	mt.SetType(&MEDIATYPE_Video);

	if (format==MS_YUV420P)
	{
		GUID m = (GUID)FOURCCMap(MAKEFOURCC('I','4','2','0'));
		mt.SetSubtype(&m);
		mt.SetSubtype(&MEDIASUBTYPE_YV12);
	}
	else //if (format==MS_RGB24)
	{
		mt.SetSubtype(&MEDIASUBTYPE_RGB24);
	}

	//mt.SetSubtype(&MEDIASUBTYPE_IYUV);
	//mt.SetSubtype(&MEDIASUBTYPE_YUYV);
	//mt.SetSubtype(&MEDIASUBTYPE_RGB24);
	//mt.SetSampleSize();
	mt.formattype = FORMAT_VideoInfo;
	mt.SetTemporalCompression(FALSE);

	VIDEOINFO *pvi = (VIDEOINFO *)
	mt.AllocFormatBuffer(sizeof(VIDEOINFO));
	if (NULL == pvi)
		return E_OUTOFMEMORY;
	ZeroMemory(pvi, sizeof(VIDEOINFO));
	if (format==MS_YUV420P)
	{
		pvi->bmiHeader.biCompression = MAKEFOURCC('I','4','2','0');
		pvi->bmiHeader.biCompression = MAKEFOURCC('Y','V','1','2');
		pvi->bmiHeader.biBitCount = 12;
	}
	else
	{
		pvi->bmiHeader.biCompression = BI_RGB;
		pvi->bmiHeader.biBitCount = 24;
	}
	pvi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
	pvi->bmiHeader.biWidth = vsize->width;
	pvi->bmiHeader.biHeight = vsize->height;
	pvi->bmiHeader.biPlanes = 1;
	pvi->bmiHeader.biSizeImage = GetBitmapSize(&pvi->bmiHeader);
	pvi->bmiHeader.biClrImportant = 0;
	mt.SetSampleSize(pvi->bmiHeader.biSizeImage);
	mt.SetFormat((BYTE*)pvi, sizeof(VIDEOINFO));

	hr = s->m_pDXFilter->SetAcceptedMediaType(&mt);
	if(FAILED(hr))
	{
		return -5;
	}

	hr = s->m_pDXFilter->SetCallback(Callback); 
	if(FAILED(hr))
	{
		return -6;
	}

	hr = s->m_pDXFilter->QueryInterface(IID_IBaseFilter,
	 (LPVOID *)&s->m_pIDXFilter);
	if(FAILED(hr))
	{
		return -7;
	}

	hr = s->m_pGraph->AddFilter(s->m_pIDXFilter, L"DXFilter Filter");
	if(FAILED(hr))
	{
		return -8;
	}

#ifdef WM6
	ICreateDevEnum *pCreateDevEnum = NULL;
	IEnumMoniker *pEnumMoniker = NULL;
	IMoniker *pMoniker = NULL;

	ULONG nFetched = 0;

	hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER, 
		IID_ICreateDevEnum, (PVOID *)&pCreateDevEnum);
	if(FAILED(hr))
	{
		return -9;
	}

	hr = pCreateDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,
		&pEnumMoniker, 0);
	if (FAILED(hr) || pEnumMoniker == NULL) {
		//printf("no device\n");
		return -10;
	}

	pEnumMoniker->Reset();

	hr = pEnumMoniker->Next(1, &pMoniker, &nFetched);
	if(FAILED(hr) || pMoniker==NULL)
	{
		return -11;
	}

	hr = pMoniker->BindToObject(0, 0, IID_IBaseFilter, (void**)&s->m_pDeviceFilter );
	if(FAILED(hr))
	{
		return -12;
	}

	s->m_pGraph->AddFilter(s->m_pDeviceFilter, L"Device Filter");

	pMoniker->Release();
	pEnumMoniker->Release();
	pCreateDevEnum->Release();
#else
	WCHAR wzDeviceName[ MAX_PATH + 1 ];
	CComVariant   varCamName;
	CPropertyBag PropBag;
    CComPtr<IPersistPropertyBag>    pPropertyBag;
	GetFirstCameraDriver(wzDeviceName);

	hr = s->m_pDeviceFilter.CoCreateInstance( CLSID_VideoCapture ); 
	if (FAILED(hr))
	{
		return -8;
	}

	s->m_pDeviceFilter.QueryInterface( &pPropertyBag );
	varCamName = wzDeviceName;
	if(( varCamName.vt == VT_BSTR ) == NULL ) {
	  return E_OUTOFMEMORY;
	}
	PropBag.Write( L"VCapName", &varCamName );   
	pPropertyBag->Load( &PropBag, NULL );
	pPropertyBag.Release();

	hr = s->m_pGraph->AddFilter( s->m_pDeviceFilter, L"Video capture source" );
#endif

	if (FAILED(hr))
	{
		return -8;
	}

	// get null renderer
	s->m_pNullRenderer = NULL;
#if 0
	hr=s->m_pNullRenderer.CoCreateInstance(CLSID_NullRenderer);
	if(FAILED(hr))
	{
		return -13;
	}
#endif
	if (s->m_pNullRenderer!=NULL)
	{
		s->m_pGraph->AddFilter(s->m_pNullRenderer, L"Null Renderer");
	}

	hr = s->m_pBuilder->RenderStream(&PIN_CATEGORY_PREVIEW,
		&MEDIATYPE_Video, s->m_pDeviceFilter, s->m_pIDXFilter, s->m_pNullRenderer);
	if (FAILED(hr))
	{
		//hr = s->m_pBuilder->RenderStream(&PIN_CATEGORY_CAPTURE,
		//	&MEDIATYPE_Video, s->m_pDeviceFilter, s->m_pIDXFilter, s->m_pNullRenderer);
		if (FAILED(hr))
		{
			return -14;
		}
	}
	
	//m_pDXFilter->SetBufferSamples(TRUE);


		// Create the System Device Enumerator.
IFilterMapper *pMapper = NULL;
//IEnumMoniker *pEnum = NULL;
IEnumRegFilters *pEnum = NULL;

hr = CoCreateInstance(CLSID_FilterMapper, 
    NULL, CLSCTX_INPROC, IID_IFilterMapper, 
    (void **) &pMapper);

if (FAILED(hr))
{
    // Error handling omitted for clarity.
}

GUID arrayInTypes[2];
arrayInTypes[0] = MEDIATYPE_Video;
arrayInTypes[1] = MEDIASUBTYPE_dvsd;

hr = pMapper->EnumMatchingFilters(
        &pEnum,
        MERIT_HW_COMPRESSOR, // Minimum merit.
        FALSE,               // At least one input pin?
        MEDIATYPE_NULL,
        MEDIASUBTYPE_NULL,
        FALSE,              // Must be a renderer?
        FALSE,               // At least one output pin?
        MEDIATYPE_NULL,                  
        MEDIASUBTYPE_NULL);              

// Enumerate the monikers.
//IMoniker *pMoniker;
REGFILTER *pMoniker;
ULONG cFetched;
while (pEnum->Next(1, &pMoniker, &cFetched) == S_OK)
{
    IPropertyBag *pPropBag = NULL;
#if 0
	hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag, 
       (void **)&pPropBag);

    if (SUCCEEDED(hr))
    {
        // To retrieve the friendly name of the filter, do the following:
        VARIANT varName;
        VariantInit(&varName);
        hr = pPropBag->Read(L"FriendlyName", &varName, 0);
        if (SUCCEEDED(hr))
        {
            // Display the name in your UI somehow.
        }
        VariantClear(&varName);

        // To create an instance of the filter, do the following:
        IBaseFilter *pFilter;
        hr = pMoniker->BindToObject(NULL, NULL, IID_IBaseFilter, (void**)&pFilter);
        // Now add the filter to the graph. Remember to release pFilter later.
    
        // Clean up.
        pPropBag->Release();
    }
    pMoniker->Release();
#endif

}

// Clean up.
pMapper->Release();
pEnum->Release();




	s_callback = s;
	hr = s->m_pControl->Run();
	if(FAILED(hr))
	{
		return -15;
	}

	s->rotregvalue=1;
	s->pix_fmt = format;
	s->vsize.height = vsize->height;
	s->vsize.width = vsize->width;
	return 0;
}
Пример #23
0
static GstCaps *
gst_dshowaudiosrc_get_caps (GstBaseSrc * basesrc, GstCaps * filter)
{
  HRESULT hres = S_OK;
  IBindCtx *lpbc = NULL;
  IMoniker *audiom = NULL;
  DWORD dwEaten;
  GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (basesrc);
  gunichar2 *unidevice = NULL;

  if (src->device) {
    g_free (src->device);
    src->device = NULL;
  }

  src->device =
      gst_dshow_getdevice_from_devicename (&CLSID_AudioInputDeviceCategory,
      &src->device_name);
  if (!src->device) {
    GST_ERROR ("No audio device found.");
    return NULL;
  }
  unidevice =
      g_utf8_to_utf16 (src->device, strlen (src->device), NULL, NULL, NULL);

  if (!src->audio_cap_filter) {
    hres = CreateBindCtx (0, &lpbc);
    if (SUCCEEDED (hres)) {
      hres =
          MkParseDisplayName (lpbc, (LPCOLESTR) unidevice, &dwEaten, &audiom);
      if (SUCCEEDED (hres)) {
        hres = audiom->BindToObject (lpbc, NULL, IID_IBaseFilter,
            (LPVOID *) & src->audio_cap_filter);
        audiom->Release ();
      }
      lpbc->Release ();
    }
  }

  if (src->audio_cap_filter && !src->caps) {
    /* get the capture pins supported types */
    IPin *capture_pin = NULL;
    IEnumPins *enumpins = NULL;
    HRESULT hres;

    hres = src->audio_cap_filter->EnumPins (&enumpins);
    if (SUCCEEDED (hres)) {
      while (enumpins->Next (1, &capture_pin, NULL) == S_OK) {
        IKsPropertySet *pKs = NULL;

        hres =
            capture_pin->QueryInterface (IID_IKsPropertySet, (LPVOID *) & pKs);
        if (SUCCEEDED (hres) && pKs) {
          DWORD cbReturned;
          GUID pin_category;
          RPC_STATUS rpcstatus;

          hres =
              pKs->Get (AMPROPSETID_Pin,
              AMPROPERTY_PIN_CATEGORY, NULL, 0, &pin_category, sizeof (GUID),
              &cbReturned);

          /* we only want capture pins */
          if (UuidCompare (&pin_category, (UUID *) & PIN_CATEGORY_CAPTURE,
                  &rpcstatus) == 0) {
            IAMStreamConfig *streamcaps = NULL;

            if (SUCCEEDED (capture_pin->QueryInterface (IID_IAMStreamConfig,
                        (LPVOID *) & streamcaps))) {
              src->caps =
                  gst_dshowaudiosrc_getcaps_from_streamcaps (src, capture_pin,
                  streamcaps);
              streamcaps->Release ();
            }
          }
          pKs->Release ();
        }
        capture_pin->Release ();
      }
      enumpins->Release ();
    }
  }

  if (unidevice) {
    g_free (unidevice);
  }

  if (src->caps) {
    GstCaps *caps;

    if (filter) {
      caps = gst_caps_intersect_full (filter, src->caps, GST_CAPS_INTERSECT_FIRST);
    } else {
      caps = gst_caps_ref (src->caps);
    }

    return caps;
  }

  return NULL;
}
Пример #24
0
void showhelppp(const char *anchor = 0) //Alone Coder 0.36.6
{
   if (!hMSHTML) hMSHTML = LoadLibrary("MSHTML.DLL");
   if (!hURLMON) hURLMON = LoadLibrary("URLMON.DLL");

   tShowHTMLDialog Show = hMSHTML? (tShowHTMLDialog)GetProcAddress(hMSHTML, "ShowHTMLDialog") : 0;
   tCreateURLMoniker CreateMoniker = hURLMON? (tCreateURLMoniker)GetProcAddress(hURLMON, "CreateURLMoniker") : 0;

   HWND fgwin = GetForegroundWindow();
   if (!Show || !CreateMoniker)
   { MessageBox(fgwin, "Install IE4.0 or higher to view help", 0, MB_ICONERROR); return; }

   char dst[0x200];
   GetTempPath(sizeof dst, dst); strcat(dst, "us_help.htm");

   FILE *ff = fopen(helpname, "rb"), *gg = fopen(dst, "wb");
   if (!ff || !gg) return;

   for (;;)
   {
      int x = getc(ff);
      if (x == EOF) break;
      if (x == '{')
      {
         char tag[0x100]; int r = 0;
         while (r < sizeof(tag)-1 && !feof(ff) && (x = getc(ff)) != '}')
             tag[r++] = x;
         tag[r] = 0;
         if (tag[0] == '?')
         {
            RECT rc;
            GetWindowRect(fgwin, &rc);
            if (tag[1] == 'x')
                fprintf(gg, "%d", rc.right-rc.left-20);
            if (tag[1] == 'y')
                fprintf(gg, "%d", rc.bottom-rc.top-20);
         }
         else
         {
            char res[0x100]; GetPrivateProfileString("SYSTEM.KEYS", tag, "not defined", res, sizeof res, ininame);
            char *comment = strchr(res, ';'); if (comment) *comment = 0;
            int len; //Alone Coder 0.36.7
            for (/*int*/ len = strlen(res); len && res[len-1] == ' '; res[--len] = 0);
            for (len = 0; res[len]; len++) if (res[len] == ' ') res[len] = '-';
            fprintf(gg, "%s", res);
         }
      } else putc(x, gg);
   }
   fclose(ff), fclose(gg);

   char url[0x200];
   sprintf(url, "file://%s%s%s", dst, anchor?"#":nil, anchor?anchor:nil);
   WCHAR urlw[0x200];
   MultiByteToWideChar(AreFileApisANSI()? CP_ACP : CP_OEMCP, MB_USEGLYPHCHARS, url, -1, urlw, _countof(urlw));
   IMoniker *pmk = 0;
   CreateMoniker(0, urlw, &pmk);

   if (pmk)
   {
      bool restore_video = false;
      if (!(temp.rflags & (RF_GDI | RF_CLIP | RF_OVR | RF_16 | RF_32)))
      {
          temp.rflags = temp.rflags | RF_GDI;
          set_video();
          restore_video = true;
      }
      Show(fgwin, pmk, 0,0,0);
      pmk->Release();
#if 0
      if (dbgbreak)
      {
          temp.rflags = RF_MONITOR;
          set_video();
      }
      else
#endif
      {
          if (restore_video)
              apply_video();
      }
   }

   DeleteFile(dst);
}
Пример #25
0
gchar *
gst_dshow_getdevice_from_devicename (const GUID * device_category,
    gchar ** device_name)
{
  gchar *ret = NULL;
  ICreateDevEnum *devices_enum = NULL;
  IEnumMoniker *enum_moniker = NULL;
  IMoniker *moniker = NULL;
  HRESULT hres = S_FALSE;
  ULONG fetched;
  gboolean bfound = FALSE;

  hres = CoCreateInstance (CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
      IID_ICreateDevEnum, (void **) &devices_enum);
  if (hres != S_OK) {
    /*error */
    goto clean;
  }

  hres = devices_enum->CreateClassEnumerator (*device_category,
      &enum_moniker, 0);
  if (hres != S_OK || !enum_moniker) {
    /*error */
    goto clean;
  }

  enum_moniker->Reset ();

  while (hres = enum_moniker->Next (1, &moniker, &fetched), hres == S_OK
      && !bfound) {
    IPropertyBag *property_bag = NULL;
    hres =
        moniker->BindToStorage (NULL, NULL, IID_IPropertyBag,
        (void **) &property_bag);
    if (SUCCEEDED (hres) && property_bag) {
      VARIANT varFriendlyName;
      VariantInit (&varFriendlyName);

      hres = property_bag->Read (L"FriendlyName", &varFriendlyName, NULL);
      if (hres == S_OK && varFriendlyName.bstrVal) {
        gchar *friendly_name =
            g_utf16_to_utf8 ((const gunichar2 *) varFriendlyName.bstrVal,
            wcslen (varFriendlyName.bstrVal), NULL, NULL, NULL);

        if (!*device_name) {
          *device_name = g_strdup (friendly_name);
        }

        if (_stricmp (*device_name, friendly_name) == 0) {
          WCHAR *wszDisplayName = NULL;
          hres = moniker->GetDisplayName (NULL, NULL, &wszDisplayName);
          if (hres == S_OK && wszDisplayName) {
            ret = g_utf16_to_utf8 ((const gunichar2 *) wszDisplayName,
                wcslen (wszDisplayName), NULL, NULL, NULL);
            CoTaskMemFree (wszDisplayName);
          }
          bfound = TRUE;
        }
        SysFreeString (varFriendlyName.bstrVal);
      }
      property_bag->Release ();
    }
    moniker->Release ();
  }

clean:
  if (enum_moniker) {
    enum_moniker->Release ();
  }

  if (devices_enum) {
    devices_enum->Release ();
  }

  return ret;
}
Пример #26
0
// enumerate all needed  devices 
//
HRESULT EnumerateDevices(char *videodriver[], 
                              int *vcount, 
                              IGraphBuilder *pIGB, 
                              ICaptureGraphBuilder *pICGB, 
                              int devicenumber ,
                              IBaseFilter **pCap,
                              BOOL isVideo)
{
    ICreateDevEnum *pCreateDevEnum=NULL;
    IEnumMoniker *pEm= NULL;
    IMoniker *pM     = NULL;
    UINT     uIndex  = 0;
    HRESULT  hr      = NOERROR;
    int      cc      = 0;

	int oldv=0x7FFFFFFF;

    if (vcount!=NULL)
        {
        oldv=*vcount;
    	*vcount=-1;
        }

//    for(cc=0;cc<2;cc++)
    for(cc=1;cc<2;cc++)
        {
        hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER, IID_ICreateDevEnum, (void**)&pCreateDevEnum);
        if (SUCCEEDED(hr))
            {
            if (cc==0)
                hr = pCreateDevEnum->CreateClassEnumerator(AM_KSCATEGORY_CAPTURE/*AM_KSCATEGORY_VIDEO*/,	&pEm, 0);
            else
                {
                if (isVideo)
                    hr = pCreateDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,	&pEm, 0);
                else
                    hr = pCreateDevEnum->CreateClassEnumerator(CLSID_AudioInputDeviceCategory,	&pEm, 0);
                }

            pCreateDevEnum->Release();
            if (SUCCEEDED(hr)&&(pEm!=NULL)) 
                {
                pEm->Reset();
                ULONG cFetched=0;
                while( (hr = pEm->Next(1, &pM, &cFetched), hr==S_OK) )
                    {
	                IPropertyBag *pBag=NULL;
	                hr = pM->BindToStorage(0, 0, IID_IPropertyBag, (void **)&pBag);
	                if(SUCCEEDED(hr)) 
                        {
	                    VARIANT var;
	                    var.vt = VT_BSTR;
	                    hr = pBag->Read(L"FriendlyName", &var, NULL);
	                    if ( (hr == NOERROR) && (videodriver!=NULL) && (vcount!=NULL) )
                            {
		                    char achName[80];
		                    WideCharToMultiByte(CP_ACP, 0, var.bstrVal, -1, achName, 80, NULL, NULL);
		                    *vcount=(*vcount)+1;
                            #if 0
                            if (cc==0)
                                lstrcpy(videodriver[*vcount],"(WDM)");
                            else
                                lstrcpy(videodriver[*vcount],"(VfW)");
                            #else
                            lstrcpy(videodriver[*vcount],"");
                            #endif        
                            lstrcat(videodriver[*vcount],achName);
		                    SysFreeString(var.bstrVal);
	                        }
	                    pBag->Release();
                        if (vcount!=NULL)
                            {
                            if ((pCap!=NULL)&&(devicenumber==*vcount))
                                hr = pM->BindToObject(0, 0, IID_IBaseFilter, (void**)pCap);
                            }
    	                }
	                pM->Release();
	                uIndex++;
                    if (vcount!=NULL)
                        {
	                    if (*vcount>=oldv)
		                    break;
                        }
                    }
                pEm->Release();
                }    
            }
        }

    return(NOERROR);
}
static GValueArray *
gst_dshowvideosrc_get_device_name_values (GstDshowVideoSrc * src)
{
    GValueArray *array = g_value_array_new (0);
    ICreateDevEnum *devices_enum = NULL;
    IEnumMoniker *moniker_enum = NULL;
    IMoniker *moniker = NULL;
    HRESULT hres = S_FALSE;
    ULONG fetched;

    hres = CoCreateInstance (CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
                             IID_ICreateDevEnum, (LPVOID *) & devices_enum);
    if (hres != S_OK) {
        GST_ERROR ("Can't create system device enumerator (error=0x%x)", hres);
        array = NULL;
        goto clean;
    }

    hres = devices_enum->CreateClassEnumerator (CLSID_VideoInputDeviceCategory,
            &moniker_enum, 0);
    if (hres != S_OK || !moniker_enum) {
        GST_ERROR ("Can't get enumeration of video devices (error=0x%x)", hres);
        array = NULL;
        goto clean;
    }

    moniker_enum->Reset ();

    while (hres = moniker_enum->Next (1, &moniker, &fetched), hres == S_OK) {
        IPropertyBag *property_bag = NULL;

        hres =
            moniker->BindToStorage (NULL, NULL, IID_IPropertyBag,
                                    (LPVOID *) & property_bag);
        if (SUCCEEDED (hres) && property_bag) {
            VARIANT varFriendlyName;

            VariantInit (&varFriendlyName);
            hres = property_bag->Read (L"FriendlyName", &varFriendlyName, NULL);
            if (hres == S_OK && varFriendlyName.bstrVal) {
                gchar *friendly_name =
                    g_utf16_to_utf8 ((const gunichar2 *) varFriendlyName.bstrVal,
                                     wcslen (varFriendlyName.bstrVal), NULL, NULL, NULL);

                GValue value = { 0 };
                g_value_init (&value, G_TYPE_STRING);
                g_value_set_string (&value, friendly_name);
                g_value_array_append (array, &value);
                g_value_unset (&value);
                g_free (friendly_name);
                SysFreeString (varFriendlyName.bstrVal);
            }
            property_bag->Release ();
        }
        moniker->Release ();
    }

clean:
    if (moniker_enum)
        moniker_enum->Release ();

    if (devices_enum)
        devices_enum->Release ();

    return array;
}
Пример #28
0
HRESULT videoInputCamera::getDevice(IBaseFilter** gottaFilter, int deviceId, WCHAR * wDeviceName, char * nDeviceName){
	BOOL done = false;
	int deviceCounter = 0;

	// Create the System Device Enumerator.
	ICreateDevEnum *pSysDevEnum = NULL;
	HRESULT hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER, IID_ICreateDevEnum, (void **)&pSysDevEnum);
	if (FAILED(hr))
	{
		return hr;
	}

	// Obtain a class enumerator for the video input category.
	IEnumMoniker *pEnumCat = NULL;
	hr = pSysDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory, &pEnumCat, 0);

	if (hr == S_OK)
	{
		// Enumerate the monikers.
		IMoniker *pMoniker = NULL;
		ULONG cFetched;
		while ((pEnumCat->Next(1, &pMoniker, &cFetched) == S_OK) && (!done))
		{
			if(deviceCounter == deviceId)
			{
				// Bind the first moniker to an object
				IPropertyBag *pPropBag;
				hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag, (void **)&pPropBag);
				if (SUCCEEDED(hr))
				{
					// To retrieve the filter's friendly name, do the following:
					VARIANT varName;
					VariantInit(&varName);
					hr = pPropBag->Read(L"FriendlyName", &varName, 0);
					if (SUCCEEDED(hr))
					{

						//copy the name to nDeviceName & wDeviceName
						int count = 0;
						while( varName.bstrVal[count] != 0x00 ) {
							wDeviceName[count] = varName.bstrVal[count];
							nDeviceName[count] = (char)varName.bstrVal[count];
							count++;
						}

						// We found it, so send it back to the caller
						hr = pMoniker->BindToObject(NULL, NULL, IID_IBaseFilter, (void**)gottaFilter);
						done = true;
					}
					VariantClear(&varName);
					pPropBag->Release();
					pPropBag = NULL;
					pMoniker->Release();
					pMoniker = NULL;
				}
			}
			deviceCounter++;
		}
		pEnumCat->Release();
		pEnumCat = NULL;
	}
	pSysDevEnum->Release();
	pSysDevEnum = NULL;

	if (done) {
		return hr;	// found it, return native error
	} else {
		return VFW_E_NOT_FOUND;	// didn't find it error
	}
}