This function will be called by gst_type_find_helper_get_range() when
typefinding functions request to peek at the data of a stream at certain
offsets. If this function returns GST_FLOW_OK, the result buffer will be
stored in buffer. The contents of buffer is invalid for any other
return value.
This function is supposed to behave exactly like a #GstPadGetRangeFunction.
This function will be called by gst_type_find_helper_get_range() when typefinding functions request to peek at the data of a stream at certain offsets. If this function returns GST_FLOW_OK, the result buffer will be stored in
buffer. The contents ofbufferis invalid for any other return value. This function is supposed to behave exactly like a #GstPadGetRangeFunction.