comparison audioDB.cpp @ 659:536cfa209e7f

Sampling enhancements

Allow specification of a key with -k for doing sampling between a single
datum and the rest of the database.  (The implementation is slightly
icky, as mentioned in the previous commit message; hopefully this
situation will not remain for too long).

While we're at it, allow -r/--resultlength as a synonym for --nsamples
(if --nsamples is not given) in order better to reflect the analogy
between querying and sampling.

     dbName = args_info.database_arg;
     sequenceLength = args_info.sequencelength_arg;
     if(sequenceLength < 1 || sequenceLength > 1000) {
       error("seqlen out of range: 1 <= seqlen <= 1000");
     }
-    nsamples = args_info.nsamples_arg;
+    if(args_info.nsamples_given) {
+      nsamples = args_info.nsamples_arg;
+    } else if(args_info.resultlength_given) {
+      nsamples = args_info.resultlength_arg;
+    } else {
+      nsamples = args_info.nsamples_arg;
+    }
+    if(args_info.key_given) {
+      query_from_key = true;
+      key = args_info.key_arg;
+    }
+    
+
     return 0;
   }
 
   if(args_info.DUMP_given){
     command=COM_DUMP;