v4l2deviceprovider: Don't do slow probes

This is problematic in the current design at it seriously slow down
startup of applications. As of now, no known application uses the
colorimetry and the interlace-modes for anything (the two fields that
won't be probed). So let's disable it, in the long term we'll try and
find a way to interact with the provider so applicaiton could opt-in
these slow probing methods for more advance configuration.

diff --git a/sys/v4l2/gstv4l2deviceprovider.c b/sys/v4l2/gstv4l2deviceprovider.c
index 06d86c9..8f6e9ea 100644 (file)
--- a/sys/v4l2/gstv4l2deviceprovider.c
+++ b/sys/v4l2/gstv4l2deviceprovider.c
@@ -142,6 +142,7 @@ gst_v4l2_device_provider_probe_device (GstV4l2DeviceProvider * provider,
       goto close;
 
     type = GST_V4L2_DEVICE_TYPE_SOURCE;
+    v4l2obj->skip_try_fmt_probes = TRUE;
   }
 
   if (v4l2obj->device_caps &