videoio: fix capture modes

modules/videoio/src/videoio_registry.cpp

@@ -70,7 +70,7 @@ static const struct VideoBackendInfo builtin_backends[] =
 
     // Windows
 #ifdef WINRT_VIDEO
-    DECLARE_BACKEND(CAP_WINRT, "WINRT", MODE_CAPTURE_BY_FILENAME),
+    DECLARE_BACKEND(CAP_WINRT, "WINRT", MODE_CAPTURE_BY_INDEX),
 #endif
 #ifdef HAVE_MSMF
     DECLARE_BACKEND(CAP_MSMF, "MSMF", MODE_CAPTURE_ALL | MODE_WRITER),
@@ -79,7 +79,7 @@ static const struct VideoBackendInfo builtin_backends[] =
     DECLARE_BACKEND(CAP_VFW, "VFW", MODE_CAPTURE_ALL | MODE_WRITER),
 #endif
 #ifdef HAVE_DSHOW
-    DECLARE_BACKEND(CAP_DSHOW, "DSHOW", MODE_CAPTURE_ALL),
+    DECLARE_BACKEND(CAP_DSHOW, "DSHOW", MODE_CAPTURE_BY_INDEX),
 #endif
 
     // Linux, some Unix
@@ -98,7 +98,7 @@ static const struct VideoBackendInfo builtin_backends[] =
     DECLARE_BACKEND(CAP_OPENNI2, "OPENNI2", MODE_CAPTURE_ALL),
 #endif
 #ifdef HAVE_INTELPERC
-    DECLARE_BACKEND(CAP_INTELPERC, "INTEL_PERC", MODE_CAPTURE_ALL),
+    DECLARE_BACKEND(CAP_INTELPERC, "INTEL_PERC", MODE_CAPTURE_BY_INDEX),
 #endif
 
     // OpenCV file-based only
@@ -107,23 +107,23 @@ static const struct VideoBackendInfo builtin_backends[] =
 
     // special interfaces / stereo cameras / other SDKs
 #if defined(HAVE_DC1394_2) || defined(HAVE_DC1394) || defined(HAVE_CMU1394)
-    DECLARE_BACKEND(CAP_FIREWIRE, "FIREWIRE", MODE_CAPTURE_ALL),
+    DECLARE_BACKEND(CAP_FIREWIRE, "FIREWIRE", MODE_CAPTURE_BY_INDEX),
 #endif
     // GigE
 #ifdef HAVE_PVAPI
-    DECLARE_BACKEND(CAP_PVAPI, "PVAPI", MODE_CAPTURE_ALL),
+    DECLARE_BACKEND(CAP_PVAPI, "PVAPI", MODE_CAPTURE_BY_INDEX),
 #endif
 #ifdef HAVE_XIMEA
     DECLARE_BACKEND(CAP_XIAPI, "XIMEA", MODE_CAPTURE_ALL),
 #endif
 #ifdef HAVE_GIGE_API
-    DECLARE_BACKEND(CAP_GIGANETIX, "GIGANETIX", MODE_CAPTURE_ALL),
+    DECLARE_BACKEND(CAP_GIGANETIX, "GIGANETIX", MODE_CAPTURE_BY_INDEX),
 #endif
 #ifdef HAVE_ARAVIS_API
-    DECLARE_BACKEND(CAP_ARAVIS, "ARAVIS", MODE_CAPTURE_ALL),
+    DECLARE_BACKEND(CAP_ARAVIS, "ARAVIS", MODE_CAPTURE_BY_INDEX),
 #endif
 #ifdef HAVE_UNICAP
-    DECLARE_BACKEND(CAP_UNICAP, "UNICAP", MODE_CAPTURE_BY_FILENAME),
+    DECLARE_BACKEND(CAP_UNICAP, "UNICAP", MODE_CAPTURE_BY_INDEX),
 #endif
 
 #ifdef HAVE_GPHOTO2