Add abstrat type matrix and data.

[Faustine.git] / interpretor / beam.ml

diff --git a/interpretor/beam.ml b/interpretor/beam.ml
index 273ae1c..bec7ed0 100644 (file)
--- a/interpretor/beam.ml
+++ b/interpretor/beam.ml
@@ -70,7 +70,7 @@ class beam : signal_type array -> beam_type =
          let signal_at = fun (t : time) -> fun (s : signal_type) -> s#at t in
          Array.map (signal_at t) self#get
 
-      method output : int -> float array array array = 
+      method output : int -> data = 
          fun (length_max : int) ->
            let transpose : 'a array array -> 'a array array = 
              fun matrix ->
@@ -91,24 +91,17 @@ class beam : signal_type array -> beam_type =
              transpose container
 
            with x ->
-             let error_message = 
                match x with
-               | Convert_Error s -> "Convert_Error: " ^ s
-               | Basic_operation s -> "Basic_operation: " ^ s
-               | Signal_operation s -> "Signal_operation: " ^ s
-               | Beam_matching s -> "Beam_Matching_Error: " ^ s
-               | Invalid_argument s -> "Compute finished."
-               | _ -> "Unknown error"
-             in
-             let () = print_string error_message in
-             transpose (Array.sub container 0 !index)
-
-      method frequency : int array = 
-       let each_rate : signal -> int = 
+               | Invalid_argument s -> 
+                   transpose (Array.sub container 0 !index)
+               | _ -> raise x
+
+      method frequency : rate_type array = 
+       let each_rate : signal -> rate = 
          fun (s : signal) -> 
            let rate = s#frequency in
-           if rate > 0 then rate
-           else if rate = 0 then 44100
+           if rate#num > 0 then rate
+           else if rate#num = 0 then new rate 44100 1
            else raise (Beam_matching "frequency error.") in    
        Array.map each_rate self#get