Lets #GstVideoDecoder sub-classes decide if they want the sink pad to use the default pad query handler to reply to accept-caps queries.
By setting this to true it is possible to further customize the default handler with GST_PAD_SET_ACCEPT_INTERSECT and GST_PAD_SET_ACCEPT_TEMPLATE
if the default pad accept-caps query handling should be used
Lets #GstVideoDecoder sub-classes decide if they want the sink pad to use the default pad query handler to reply to accept-caps queries.
By setting this to true it is possible to further customize the default handler with GST_PAD_SET_ACCEPT_INTERSECT and GST_PAD_SET_ACCEPT_TEMPLATE