static string try_size P4C(const_string, fontname, unsigned, dpi, kpse_file_format_type, format, kpse_glyph_file_type *, glyph_file) { kpse_file_format_type format_found; string ret; boolean try_gf = format == kpse_gf_format || format == kpse_any_glyph_format; boolean try_pk = format == kpse_pk_format || format == kpse_any_glyph_format; xputenv_int ("KPATHSEA_DPI", dpi); /* Look for PK first (since it's more likely to be found), then GF. */ ret = try_pk ? try_format (fontname, dpi, kpse_pk_format) : NULL; if (ret != NULL) format_found = kpse_pk_format; else { if (try_gf) { ret = try_format (fontname, dpi, kpse_gf_format); format_found = kpse_gf_format; } } if (ret != NULL && glyph_file) { /* Success. Fill in the return info. Discard const. */ glyph_file->name = (string) fontname; glyph_file->dpi = dpi; glyph_file->format = format_found; } return ret; }
static int _vfw_engine_select_format(VfwEngine *obj){ BITMAPINFO videoformat; MSPixFmt driver_last; char compname[5]; capGetVideoFormat(obj->capvideo, &videoformat, sizeof(BITMAPINFO)); memcpy(compname,&videoformat.bmiHeader.biCompression,4); compname[4]='\0'; ms_message("vfw: camera's current format is '%s' at %ix%i", compname, videoformat.bmiHeader.biWidth,videoformat.bmiHeader.biHeight); driver_last=ms_fourcc_to_pix_fmt(videoformat.bmiHeader.biCompression); if (driver_last!=MS_PIX_FMT_UNKNOWN && try_format(obj,&videoformat,driver_last)){ ms_message("Using driver last setting"); obj->pix_fmt=driver_last; }else if (try_format(obj,&videoformat,MS_YUV420P)){ obj->pix_fmt=MS_YUV420P; ms_message("Using YUV420P"); }else if (try_format(obj,&videoformat,MS_RGB24)){ obj->pix_fmt=MS_RGB24; ms_message("Using RGB24"); }else if (try_format(obj,&videoformat,MS_YUY2)){ obj->pix_fmt=MS_YUY2; ms_message("Using YUY2"); }else{ ms_error("v4w: Failed to set any video format."); return -1; } if (obj->pix_fmt==MS_RGB24){ if (videoformat.bmiHeader.biHeight>0){ obj->pix_fmt=MS_RGB24_REV; } } return 0; }
static string try_size P4C(const_string, font_name, unsigned, dpi, string *, glyph_paths, kpse_font_file_type *, font_file) { kpse_file_format_type format_found; string ret; string gf_path = glyph_paths[kpse_gf_format]; string pk_path = glyph_paths[kpse_pk_format]; xputenv_int ("KPATHSEA_DPI", dpi); /* Look for PK first (since it's more likely to be found), then GF. */ ret = pk_path ? try_format (font_name, dpi, pk_path, "pk") : NULL; if (ret != NULL) format_found = kpse_pk_format; else { if (gf_path) { ret = try_format (font_name, dpi, gf_path, "gf"); format_found = kpse_gf_format; } } if (ret != NULL && font_file) { /* Success. Fill in the return info. Discard const. */ font_file->name = (string) font_name; font_file->dpi = dpi; font_file->format = format_found; } return ret; }
static int try_mix_format(struct wasapi_state *state, struct ao *const ao) { WAVEFORMATEX *deviceFormat = NULL; WAVEFORMATEX *closestMatch = NULL; int ret = 0; HRESULT hr = IAudioClient_GetMixFormat(state->pAudioClient, &deviceFormat); EXIT_ON_ERROR(hr); union WAVEFMT u; u.ex = deviceFormat; WAVEFORMATEXTENSIBLE wformat = *u.extensible; ret = try_format(state, ao, wformat.Format.wBitsPerSample, wformat.Format.nSamplesPerSec, ao->channels); if (ret) state->format = wformat; exit_label: SAFE_RELEASE(deviceFormat, CoTaskMemFree(deviceFormat)); SAFE_RELEASE(closestMatch, CoTaskMemFree(closestMatch)); return ret; }
static int _v4w_start(V4wState *s, void *arg) { MSVideoSize try_vsize; int tryformat; int i; s->frame_count=-1; if (s->pix_fmt==MS_YUV420P) tryformat = MS_RGB24; else if (s->pix_fmt==MS_RGB24) tryformat = MS_YUV420P; try_vsize.height = s->vsize.height; try_vsize.width = s->vsize.width; i = try_format(s, s->pix_fmt, &try_vsize); if (i==-14) { /* try second format with same size */ i = try_format(s, tryformat, &try_vsize); } /* try both format with CIF size */ if (i==-14 && s->vsize.height!=MS_VIDEO_SIZE_CIF_H) { try_vsize.height = MS_VIDEO_SIZE_CIF_H; try_vsize.width = MS_VIDEO_SIZE_CIF_W; i = try_format(s, s->pix_fmt, &try_vsize); if (i==-14) { i = try_format(s, tryformat, &try_vsize); } } if (i==-14 && s->vsize.height!=MS_VIDEO_SIZE_QCIF_H) { try_vsize.height = MS_VIDEO_SIZE_QCIF_H; try_vsize.width = MS_VIDEO_SIZE_QCIF_W; i = try_format(s, s->pix_fmt, &try_vsize); if (i==-14) { i = try_format(s, tryformat, &try_vsize); } } if (i==-14 && s->vsize.height!=MS_VIDEO_SIZE_VGA_H) { try_vsize.height = MS_VIDEO_SIZE_VGA_H; try_vsize.width = MS_VIDEO_SIZE_VGA_W; i = try_format(s, s->pix_fmt, &try_vsize); if (i==-14) { i = try_format(s, tryformat, &try_vsize); } } if (i==-14 && s->vsize.height!=MS_VIDEO_SIZE_QVGA_H) { try_vsize.height = MS_VIDEO_SIZE_QVGA_H; try_vsize.width = MS_VIDEO_SIZE_QVGA_W; i = try_format(s, s->pix_fmt, &try_vsize); if (i==-14) { i = try_format(s, tryformat, &try_vsize); } } if (i==0) { if (s->pix_fmt==MS_YUV420P) ms_message("Using YUV420P"); else if (s->pix_fmt==MS_RGB24) ms_message("Using RGB24"); } if (s->rotregvalue==0){ //RemoveGraphFromRot(s->rotregvalue); if (s->m_pNullRenderer!=NULL) s->m_pGraph->RemoveFilter(s->m_pNullRenderer); if (s->m_pIDXFilter!=NULL) s->m_pGraph->RemoveFilter(s->m_pIDXFilter); if (s->m_pDeviceFilter!=NULL) s->m_pGraph->RemoveFilter(s->m_pDeviceFilter); s->m_pBuilder=NULL; s->m_pControl=NULL; s->m_pIDXFilter=NULL; if (s->m_pDXFilter!=NULL) s->m_pDXFilter->Release(); s->m_pDXFilter=NULL; s->m_pGraph=NULL; s->m_pNullRenderer=NULL; s->m_pDeviceFilter=NULL; CoUninitialize(); s_callback = NULL; flushq(&s->rq,0); ms_message("v4w: graph not started (err=%i)", i); s->rotregvalue=0; } return i; }
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; }
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; }
static int v4l_configure(V4lState *s) { struct video_channel chan; struct video_picture pict; struct video_capability cap; int err; int i; int fps = 0; int found=0; memset(&chan,0,sizeof(chan)); memset(&pict,0,sizeof(pict)); memset(&cap,0,sizeof(cap)); err=ioctl(s->fd,VIDIOCGCAP,&cap); if (err!=0) { ms_warning("MSV4l: cannot get device capabilities: %s.",strerror(errno)); return -1; } ms_message("Found %s device. (maxsize=%ix%i, minsize=%ix%i)",cap.name, cap.maxwidth, cap.maxheight, cap.minwidth, cap.minheight); for (i=0;i<cap.channels;i++) { chan.channel=i; err=ioctl(s->fd,VIDIOCGCHAN,&chan); if (err==0) { ms_message("Getting video channel %s",chan.name); switch(chan.type){ case VIDEO_TYPE_TV: ms_message("Channel is a TV."); break; case VIDEO_TYPE_CAMERA: ms_message("Channel is a camera"); break; default: ms_warning("unknown video channel type."); } found=1; break; /* find the first channel */ } } if (found) ms_message("A valid video channel was found."); /* select this channel */ ioctl(s->fd,VIDIOCSCHAN,&chan); /* get picture properties */ err=ioctl(s->fd,VIDIOCGPICT,&pict); if (err<0){ ms_warning("Could not get picture properties: %s",strerror(errno)); return -1; } ms_message("Default picture properties: brightness=%i,hue=%i,colour=%i,contrast=%i,depth=%i, palette=%i.", pict.brightness,pict.hue,pict.colour, pict.contrast,pict.depth, pict.palette); /* trying color format */ if (try_format(s->fd,&pict,VIDEO_PALETTE_YUV420P,16)){ ms_message("Driver supports YUV420P, using that format."); s->pix_fmt=MS_YUV420P; }else if (try_format(s->fd, &pict,VIDEO_PALETTE_RGB24,24)){ ms_message("Driver supports RGB24, using that format."); s->pix_fmt=MS_RGB24; }else if (try_format(s->fd, &pict,VIDEO_PALETTE_YUV422, 16)){ ms_message("Driver supports YUV422, using that format."); s->pix_fmt=MS_YUYV; }else if (try_format(s->fd, &pict,VIDEO_PALETTE_UYVY, 16)){ ms_message("Driver supports UYVY, using that format."); s->pix_fmt=MS_UYVY; }else{ s->vsize.width=MS_VIDEO_SIZE_CIF_W; s->vsize.height=MS_VIDEO_SIZE_CIF_H; s->pix_fmt=MS_YUV420P; ms_fatal("Unsupported video pixel format."); return -1; } if (!try_size(s,s->vsize)) { if (!try_size(s,MS_VIDEO_SIZE_NS1)){ if (!try_size(s,MS_VIDEO_SIZE_VGA)){ if (!try_size(s,MS_VIDEO_SIZE_CIF)) { if (!try_size(s,MS_VIDEO_SIZE_QCIF)) { if (!try_size(s,MS_VIDEO_SIZE_QVGA)) { if (!try_size(s,MS_VIDEO_SIZE_4CIF)) { if (!try_size(s,MS_VIDEO_SIZE_1024)) { return -1; } } } } } } } } /* Try HW frame rate control */ fps = s->fps; if (ioctl(s->fd, VIDIOSFPS, &fps) < 0 ) ms_message("v4l_configure: cannot set HW frame rate control"); else ms_message("v4l_configure: set HW fps to be : %d", fps); return 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(); }
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; }