Adding new source file faustio.ml, including class waveio and class csvio.

diff --git a/interpretor/Makefile b/interpretor/Makefile
index 6de2b12..23b74e4 100644 (file)
--- a/interpretor/Makefile
+++ b/interpretor/Makefile
@@ -2,11 +2,11 @@
 #
 # The Caml sources (including camlyacc and camllex source files)
 
-SOURCES = types.ml parser.mly lexer.mll basic.ml symbol.ml value.ml signal.ml beam.ml faustexp.ml interpreter.ml preprocess.ml main.ml preprocess_stubs.cpp
+SOURCES = types.ml parser.mly lexer.mll basic.ml symbol.ml aux.ml value.ml signal.ml beam.ml process.ml faustio.ml preprocess.ml main.ml preprocess_stubs.cpp
 
 # The executable file to generate
 
-EXEC = mrfausti
+EXEC = faustine
 
 # Path to ocaml include header files
 export OCAML_INCLUDE_PATH

diff --git a/interpretor/aux.ml b/interpretor/aux.ml
new file mode 100644 (file)
index 0000000..3bc11a6
--- /dev/null
+++ b/interpretor/aux.ml
@@ -0,0 +1,21 @@
+(**
+       Module: Aux
+       Description: all auxiliary functions
+       @author WANG Haisheng   
+       Created: 12/08/2013     Modified: 13/08/2013
+*)
+
+
+
+let array_map2 = fun f -> fun a -> fun b ->
+  let n1 = Array.length a in
+  let n2 = Array.length b in
+  if n1 = n2 then Array.init n1 (fun i -> f a.(i) b.(i))
+  else raise (Invalid_argument "Array.map2 size not matched.");;
+
+let array_map3 = fun f -> fun a -> fun b -> fun c ->
+  let n1 = Array.length a in
+  let n2 = Array.length b in
+  let n3 = Array.length c in
+  if n1 = n2 && n1 = n3 then Array.init n1 (fun i -> f a.(i) b.(i) c.(i))
+  else raise (Invalid_argument "Array.map2 size not matched.");;

diff --git a/interpretor/faustio.ml b/interpretor/faustio.ml
new file mode 100644 (file)
index 0000000..b05f18d
--- /dev/null
+++ b/interpretor/faustio.ml
@@ -0,0 +1,163 @@
+(**
+       Module: Faustio 
+       Description: audio input/output, csv input/output
+       @author WANG Haisheng   
+       Created: 12/08/2013     Modified: 13/08/2013
+*)
+
+open Types;;
+open Beam;;
+open Aux;;
+
+let default_output_path = "../output_sounds/";;
+
+class virtual io = 
+  object
+    method virtual read : string array -> beam
+    method virtual write : int array -> value_type array array -> string array
+    method private to_float : value_type array array -> float array array = 
+      fun (origin : value_type array array) ->
+       let data = 
+         let value2float = fun (v : value_type) -> v#to_float_array in
+         Array.map (Array.map value2float) origin in
+       Array.map Array.concat (Array.map Array.to_list data)
+  end;;
+
+class waveio : io_type = 
+  object (self)
+    inherit io
+    method read : string array -> beam = 
+      fun (paths : string array) ->
+       let n = Array.length paths in
+       if n = 0 then
+         new beam [||]
+       else 
+         let signals = 
+           let files = Array.map Sndfile.openfile paths in
+           let frames = Array.map Int64.to_int (Array.map Sndfile.frames files) in
+           let rates = Array.map Sndfile.samplerate files in
+           let create_container = fun l -> Array.create l 1. in
+           let containers = Array.map create_container frames in
+           let _ = array_map2 Sndfile.read files containers in
+           let _ = Array.map Sndfile.close files in
+           array_map2 (new signal) rates containers in
+         new beam signals
+
+    method write : int array -> value_type array array -> string array = 
+      fun (rates : int array) ->
+       fun (output : value_type array array) ->
+         let () = print_string("    Faustine -> Writing wave files...") in
+         let tic = Sys.time () in
+
+         let n = Array.length output in          
+         let paths = Array.init n (fun i -> 
+           default_output_path ^ "output" ^ (string_of_int i) ^ ".wav") in
+
+         let files = 
+           let channels = 
+             let get_channel = fun l -> fun s -> 
+               match s.(l - 1)#get with
+               | Vec vec -> vec#size
+               | _ -> 1 in
+             Array.map (get_channel n) output in           
+           let format = Sndfile.format Sndfile.MAJOR_WAV Sndfile.MINOR_PCM_16 in
+           let openwr = fun path -> fun channel -> fun rate ->
+             Sndfile.openfile ~info:(Sndfile.RDWR, format, channel, rate) path in
+           array_map3 openwr paths channels rates in
+
+         let () = 
+           let data = self#to_float output in
+           let _ = array_map2 Sndfile.write files data in
+           let _ = Array.map Sndfile.close files in
+           let toc = Sys.time () in
+           let duration = toc -. tic in
+           Print_endline 
+             (" Done. (duration: " ^ (string_of_float duration) ^ "s)") in
+         paths
+  end;;
+
+(*
+class csvio : io_type = 
+  object (self)
+    inherit io
+    method private csvread = 
+    method read : string array -> beam =
+      
+
+
+    method write : value_type array array -> string array
+  end;;
+*)
+
+let csvread = fun (ic : in_channel) ->
+  let string_list = ref [] in
+  try
+    while true do
+      string_list := !string_list @ [(input_line ic)]
+    done;
+    [||]
+  with End_of_file ->
+    (*let () = print_endline(List.nth !string_list 0) in*)
+    Array.of_list (List.map float_of_string !string_list);;
+
+let read_input_csv = fun argv ->
+        let n_input = (Array.length argv) - 4 in
+       if n_input < 0 then 
+               raise Missing_Expression
+       else if n_input = 0 then 
+               ([], [])
+       else
+               (* open csv file *)
+               let file_string_array = Array.sub argv 4 n_input in
+               let make_chemin s = io_macro_to_string Input_Route_string ^ s in
+               let file_chemin_string_array = Array.map make_chemin file_string_array in
+               let file_array = Array.map open_in file_chemin_string_array in
+               let file_list = Array.to_list file_array in
+
+               (* read sample rates and data *)
+               let rate_list = Array.to_list (Array.create n_input 0) in
+               let data_float_array_list = List.map csvread file_list in
+               let _ = List.map close_in file_list in
+               (rate_list, data_float_array_list);;
+
+
+let write_output_csv = fun channel_int_list -> fun data_float_array_list ->
+        let () = print_string("    Faustine -> Writing csv files...") in
+       let tic = Sys.time () in
+
+       (* make output txt file names : output0, output1, ... *)
+       let n_output = List.length data_float_array_list in
+       let n_array = Array.init n_output (fun n -> n) in
+       let make_file_name i = "output" ^ (string_of_int i) ^ ".csv" in
+
+       (* make output wave file routes *)
+       let make_chemin s = io_macro_to_string Output_Route_string ^ s in
+       let file_name_string_array = Array.map make_file_name n_array in
+       let file_chemin_string_array = Array.map make_chemin file_name_string_array in
+       let file_chemin_string_list = Array.to_list file_chemin_string_array in
+
+       (* open output channels *)
+        let file_list = List.map open_out file_chemin_string_list in
+       let data_string_array_list = List.map (Array.map string_of_float) data_float_array_list in
+       let array_to_string = fun data_string_array -> fun channel_int ->
+         let data_length = Array.length data_string_array in
+         let rec to_string_rec = 
+           fun data -> fun channel -> fun n -> fun i -> fun column ->
+             if i < n then 
+               (
+               let element = data.(i) in
+               if column < (channel - 1) then 
+                 element ^ "," ^ (to_string_rec data channel n (i + 1) (column + 1))
+               else if column = (channel - 1) then
+                 element ^ "\n" ^ (to_string_rec data channel n (i + 1) 0)
+               else raise (Invalid_argument "write_output_txt.")
+                   )
+             else "" in
+         to_string_rec data_string_array channel_int data_length 0 0 in
+
+       let data_string_list = List.map2 array_to_string data_string_array_list channel_int_list in
+       let _ = List.map2 output_string file_list data_string_list in
+       let _ = List.map close_out file_list in
+       let toc = Sys.time () in
+       print_endline(" Done. (duration: " ^ (string_of_float (toc -. tic)) ^ "s)");;
+

diff --git a/interpretor/interpreter.ml b/interpretor/interpreter.ml
deleted file mode 100644 (file)
index 226fadf..0000000
--- a/interpretor/interpreter.ml
+++ /dev/null
@@ -1,498 +0,0 @@
-(**
-       Module: Interpreter     
-       Description: input beam -> process -> output beam
-       @author WANG Haisheng   
-       Created: 15/05/2013     Modified: 04/06/2013
-*)
-
-open Types;;
-open Value;;
-open Signal;;
-open Faustexp;;
-
-(* EXCEPTIONS *)
-
-(** Exception raised during interpretation of faust process.*)
-exception Evaluation_Error of string;;
-
-
-
-(* MACRO *)
-
-(** Macro constants of this file.*)
-type interpreter_macro = 
-  | Number_samples_int
-  | Max_Eval_Time_int;;
-
-(** val interpreter_macro_to_value : returns the value associated with the macro.*)
-let interpreter_macro_to_value m = match m with
-                               | Number_samples_int -> 0xFFFFF
-                               | Max_Eval_Time_int -> 0xFFFFFFFF;;
-
-
-(* OUTPUT WAVE COMPUTATION *)
-
-(** val func_of_func_array : (int -> value) array -> (int -> value array),
-applies the same int parameter to each element of function array, 
-produces a value array.*)
-let fun_array_to_fun = fun fun_array -> 
-       let reverse = fun t -> fun f -> f t in
-       let new_fun = fun t-> Array.map (reverse t) fun_array in
-       new_fun;;
-       
-
-(** val computing : (int -> value array) -> int -> int -> float array array array,
-applies time sequence "0,1,2,3,...,max" to signal beam,
-returns primitive output data.*)
-let computing = fun f -> fun width -> fun length ->
-       let container_float_array_array_array = 
-               ref (Array.make length (Array.make width [||])) in
-       let index = ref 0 in
-
-       try
-               while !index < length do
-                       (!container_float_array_array_array).(!index) 
-                                     <- (Array.map convert_back_R (f (!index)));
-                       incr index;
-               done;
-               !container_float_array_array_array
-
-       with x ->
-               let error_message = 
-                       match x with
-                       |Convert_Error s -> "Convert_Error: " ^ s
-                       |Value_operation s -> "Value_operation: " ^ s
-                       |Signal_operation s -> "Signal_operation: " ^ s
-                       |Beam_Matching_Error s -> "Beam_Matching_Error: " ^ s
-                       |Evaluation_Error s -> "Evaluation_Error: " ^ s
-                       |NotYetDone -> "NotYetDone"
-                       |_ -> "Compute finished."
-               in
-               let () = print_endline error_message in
-               Array.sub (!container_float_array_array_array) 0 !index;;
-
-
-(** val matrix_transpose : 'a array array -> 'a array array, 
-transposes the input matrix.*)
-let matrix_transpose = fun m_array_array -> fun width -> 
-       let get_element = fun i -> fun array -> Array.get array i in
-       let get_line = fun array_array -> fun i -> 
-               Array.map (get_element i) array_array in
-       let transpose array_array = Array.init width (get_line array_array) in
-       transpose m_array_array;;
-
-
-(** val channels : 'a array array array -> int -> int array, 
-returns an array of number of channels. *)
-let channels = fun f_array_array_array -> fun width ->
-       let channel = fun faaa -> fun i -> 
-               let faa = faaa.(i) in
-               let length = Array.length faa in
-               let fa = faa.(length - 1) in
-               Array.length fa
-       in
-       let channel_array = Array.init width (channel f_array_array_array) in
-       channel_array;;
-
-
-(** val arrange : 'a array array array -> int -> 'a array list, 
-arranges the output data in "array list" form. *)
-let arrange = fun float_array_array_array -> fun width ->
-       let concat faaa = fun i -> 
-               let faa = faaa.(i) in
-               Array.concat (Array.to_list faa)
-       in
-       let float_array_array = Array.init width (concat float_array_array_array) in
-       let float_array_list = Array.to_list float_array_array in
-       float_array_list;;
-
-
-(** val compute : (int -> value) list -> (int list) * (float array list).
-input: a list of signal functions
-output: channel number list, data list.*)
-let compute fun_list = 
-       let () = print_endline("Computing output signals...") in
-       
-       (* arrange input information *)
-       let length = interpreter_macro_to_value Number_samples_int in
-       let width = List.length fun_list in
-       let beam_fun = fun_array_to_fun (Array.of_list fun_list) in
-
-       (* calculate output wave *)
-       let tmp_float_array_array_array = computing beam_fun width length in
-
-       (* arrange output data *)
-       let output_float_array_array_array = matrix_transpose tmp_float_array_array_array width in
-       let channel_array = channels output_float_array_array_array width in
-       let channel_list = Array.to_list channel_array in
-       let output_float_array_list = arrange output_float_array_array_array width in
-       (channel_list, output_float_array_list);;
-
-
-
-(* INTERPRETATION *)
-
-(** val sublist : 'a list -> int -> int -> 'a list, 
-[sublist l start length], returns the sublist of list 'l', 
-from index 'start', with length 'length'.*)
-let sublist l start length = 
-       try
-               let arr = Array.of_list l in
-               let sub_array = Array.sub arr start length in
-                       Array.to_list sub_array
-
-       with (Invalid_argument "Array.sub") ->
-               raise (Invalid_argument "List.sub");;
-
-
-(** val make_beam : (int list) * (float array list) -> (int * (int -> value)) list,
-input: (sample rate list, data list)
-output: beam = (sample rate, function) list *)
-let make_beam = fun input ->
-       let rate_list = fst input in
-       let float_array_list = snd input in
-       let value_array_list = 
-               List.map (Array.map return_R) float_array_list in
-       let fun_list = List.map Array.get value_array_list in
-       let make_signal = fun rate -> fun f -> (rate, f) in
-       let beam = List.map2 make_signal rate_list fun_list in
-       beam;;
-
-
-(** val interpret_const : value -> beam -> beam, generates constant signal with frequency 0. *)
-let interpret_const = fun v -> fun input_beam ->
-       let n = List.length input_beam in
-       if n = 0 then [(0,(fun t -> v))] 
-       else raise (Evaluation_Error "Const");;
-     
-
-(** val interpret_ident : string -> beam -> beam, 
-generates signals according to identified symbols. *)
-let interpret_ident = fun s -> fun input_beam ->
-       let n = List.length input_beam in
-       match s with
-       |Pass -> if n = 1 then input_beam else raise (Evaluation_Error "Ident _")
-
-       |Stop -> if n = 1 then [] else raise (Evaluation_Error "Ident !")
-
-       |Add -> if n = 2 then [signal_add (List.nth input_beam 0) (List.nth input_beam 1)] 
-                       else raise (Evaluation_Error "Ident +")
-
-       |Sup -> if n = 2 then [signal_sub (List.nth input_beam 0) (List.nth input_beam 1)] 
-                       else raise (Evaluation_Error "Ident -")
-
-       |Mul -> if n = 2 then [signal_mul (List.nth input_beam 0) (List.nth input_beam 1)] 
-                       else raise (Evaluation_Error "Ident *")
-
-       |Div -> if n = 2 then [signal_div (List.nth input_beam 0) (List.nth input_beam 1)] 
-                       else raise (Evaluation_Error "Ident /")
-
-       |Delay -> if n = 2 then [signal_delay (List.nth input_beam 0) (List.nth input_beam 1)] 
-                       else raise (Evaluation_Error "Ident @")
-
-       |Mem -> if n = 1 then [signal_mem (List.nth input_beam 0)] 
-                       else raise (Evaluation_Error "Ident mem")
-
-       |Vectorize -> if n = 2 then [signal_vectorize (List.nth input_beam 0) (List.nth input_beam 1)]
-                       else raise (Evaluation_Error "Ident vectorize")
-
-       |Serialize -> if n = 1 then [signal_serialize (List.nth input_beam 0)]
-                       else raise (Evaluation_Error "Ident serialize")
-
-       |Concat -> if n = 2 then [signal_append (List.nth input_beam 0) (List.nth input_beam 1)]
-                       else raise (Evaluation_Error "Ident #")
-
-       |Nth -> if n = 2 then [signal_nth (List.nth input_beam 0) (List.nth input_beam 1)]
-                       else raise (Evaluation_Error "Ident []")
-
-       |Floor -> if n = 1 then [signal_floor (List.nth input_beam 0)]
-                       else raise (Evaluation_Error "Ident floor")
-
-       |Int -> if n = 1 then [signal_int (List.nth input_beam 0)]
-                       else raise (Evaluation_Error "Ident int")
-
-       |Sin -> if n = 1 then [signal_sin (List.nth input_beam 0)]
-                       else raise (Evaluation_Error "Ident sin")
-
-       |Rdtable -> if n = 3 then [signal_rdtable (List.nth input_beam 0) 
-                                       (List.nth input_beam 1) (List.nth input_beam 2)] 
-                       else raise (Evaluation_Error "Ident rdtable")
-
-       |Selecttwo -> if n = 3 then [signal_select2 (List.nth input_beam 0) (List.nth input_beam 1) 
-                                       (List.nth input_beam 2)] 
-                       else raise (Evaluation_Error "Ident select2")
-
-       |Selectthree -> if n = 4 then [signal_select3 (List.nth input_beam 0) (List.nth input_beam 1) 
-                                       (List.nth input_beam 2) (List.nth input_beam 3)] 
-                       else raise (Evaluation_Error "Ident select3")
-
-       |Prefix -> if n = 2 then [signal_prefix (List.nth input_beam 0) (List.nth input_beam 1)] 
-                       else raise (Evaluation_Error "Ident prefix")
-
-       |Mod -> if n = 2 then [signal_mod (List.nth input_beam 0) (List.nth input_beam 1)] 
-                       else raise (Evaluation_Error "Ident %")
-
-       |Larger -> if n = 2 then [signal_sup (List.nth input_beam 0) (List.nth input_beam 1)] 
-                       else raise (Evaluation_Error "Ident >")
-
-       |Smaller -> if n = 2 then [signal_inf (List.nth input_beam 0) (List.nth input_beam 1)] 
-               else raise (Evaluation_Error "Ident <");;
-
-
-
-(** val rec eval : faust_exp -> beam -> beam,
-main interpretation work is done here. *)
-let rec eval exp_faust dimension_tree input_beam = 
-
-
-(** val interpret_par : faust_exp -> faust_exp -> beam -> beam, 
-interprets par(e1, e2) with input beam, produces output beam.*)
-let interpret_par = fun e1 -> fun e2 -> fun dimension_tree -> fun input_beam ->
-
-       (* dimension information *)
-       let n = List.length input_beam in
-       let subtree1 = subtree_left dimension_tree in
-       let subtree2 = subtree_right dimension_tree in
-       let d1 = get_root subtree1 in
-       let d2 = get_root subtree2 in
-
-       if n = (fst d1) + (fst d2) then 
-       (               
-               (* segmentation of input beam *)
-               let input_beam1 = sublist input_beam 0 (fst d1) in
-               let input_beam2 = sublist input_beam (fst d1) (fst d2) in
-
-               (* evaluate two expressions respectively *)
-               let output_beam1 = eval e1 subtree1 input_beam1 in
-               let output_beam2 = eval e2 subtree2 input_beam2 in
-
-               (* concat two output beams *)
-               if List.length output_beam1 = snd d1 && List.length output_beam2 = snd d2 
-               then (output_beam1 @ output_beam2) 
-               else raise (Evaluation_Error "Par")
-       )
-       else raise (Evaluation_Error "Par") in
-
-
-(** val interpret_seq : faust_exp -> faust_exp -> beam -> beam, 
-interprets seq(e1, e2) with input beam, produces output beam.*)
-let interpret_seq = fun e1 -> fun e2 -> fun dimension_tree -> fun input_beam ->
-
-       (* dimension information *)
-       let n = List.length input_beam in
-       let subtree1 = subtree_left dimension_tree in
-       let subtree2 = subtree_right dimension_tree in
-       let d1 = get_root subtree1 in
-       let d2 = get_root subtree2 in
-
-
-       if n = fst d1 then
-       (
-               (* evaluate the first expression *)
-               let output_beam1 = eval e1 subtree1 input_beam in
-
-               (* evaluate the second expression *)
-               if List.length output_beam1 = fst d2 
-               then eval e2 subtree2 output_beam1
-               else raise (Evaluation_Error "Seq")
-       )
-       else raise (Evaluation_Error "Seq") in
-
-
-(** val interpret_split : faust_exp -> faust_exp -> beam -> beam, 
-interprets split(e1, e2) with input beam, produces output beam.*)
-let interpret_split = fun e1 -> fun e2 -> fun dimension_tree -> fun input_beam ->
-
-       (* dimension information *)
-       let n = List.length input_beam in
-       let subtree1 = subtree_left dimension_tree in
-       let subtree2 = subtree_right dimension_tree in
-       let d1 = get_root subtree1 in
-       let d2 = get_root subtree2 in
-
-
-       if n = fst d1 then
-       (
-               (* evaluate the first expression *)
-               let output_beam1 = eval e1 subtree1 input_beam in
-
-               (* beam matching *)
-               let ref_output_beam1 = ref (beam_add_one_memory output_beam1) in
-               let input_beam2 = List.concat 
-                   (Array.to_list (Array.make ((fst d2)/(List.length output_beam1)) !ref_output_beam1)) 
-               in
-
-               (* evaluate the second expression *)
-               if List.length input_beam2 = fst d2
-               then eval e2 subtree2 input_beam2
-               else raise (Evaluation_Error "Split")
-       )
-       else raise (Evaluation_Error "Split") in
-
-
-(** val interpret_merge : faust_exp -> faust_exp -> beam -> beam, 
-interprets merge(e1, e2) with input beam, produces output beam.*)
-let interpret_merge = fun e1 -> fun e2 -> fun dimension_tree -> fun input_beam ->
-
-       (* dimension information *)
-       let n = List.length input_beam in
-       let subtree1 = subtree_left dimension_tree in
-       let subtree2 = subtree_right dimension_tree in
-       let d1 = get_root subtree1 in
-       let d2 = get_root subtree2 in
-
-
-       if n = fst d1 then
-       (
-               (* evaluate the first expression *)
-               let output_beam1 = eval e1 subtree1 input_beam in
-
-               (* beam matching *)
-               let input_beam2 = 
-               (
-                       let fois = (snd d1)/(fst d2) in
-                       let ref_beam = ref (sublist output_beam1 0 (fst d2)) in
-                       for i = 1 to fois - 1 do
-                               let temp_beam = sublist output_beam1 (i*(fst d2)) (fst d2) in
-                               ref_beam := List.map2 signal_add (!ref_beam) temp_beam;
-                       done;
-                       !ref_beam
-               )
-               in
-
-               (* evaluate the second expression *)
-               if List.length input_beam2 = fst d2
-               then eval e2 subtree2 input_beam2
-               else raise (Evaluation_Error "Merge")
-       )
-       else raise (Evaluation_Error "Merge") in
-
-
-(** val interpret_rec : faust_exp -> faust_exp -> beam -> beam, 
-interprets rec(e1, e2) with input beam, produces output beam.*)
-let interpret_rec = fun e1 -> fun e2 -> fun dimension_tree -> fun input_beam ->
-
-       (* dimension information *)
-       let subtree1 = subtree_left dimension_tree in
-       let subtree2 = subtree_right dimension_tree in
-       let d1 = get_root subtree1 in
-       let d2 = get_root subtree2 in
-
-       (* estimate stockage size for delay *)
-       let delay_int = 1 + delay e2 + delay e1 in
-
-       (* prepare stockage *)
-       let memory_hashtbl = Hashtbl.create delay_int in
-       let rate_list = ref (Array.to_list (Array.make (snd d1) 0)) in
-
-       (** val apply_to : 'a -> ('a -> 'b) -> 'b *)
-       let apply_to = fun t -> fun f -> f t in
-
-       (** val get_value_fun_list : (int -> (int list) * (value list)) -> (int -> value) list *)               
-       let get_value_fun_list = fun beam_fun -> 
-               let tmp = fun beam_fun -> fun i -> fun t -> 
-                       List.nth (snd (beam_fun t)) i in
-               List.map (tmp beam_fun) (Array.to_list (Array.init (snd d1) (fun n -> n))) in
-
-       (** val make_signal : int -> (int -> value) -> signal, combines rate and function. *)
-       let make_signal = fun rate -> fun f -> (rate, f) in
-
-       (** val output_beam_fun : int -> (int list) * (value list), with
-       input : time
-       output: rate list * value list *)
-       let rec output_beam_fun = fun t ->
-
-               (* initial value in constrctor "rec '~'" *)
-               if t < 0 then
-                       let init_rate_list = Array.to_list (Array.make (snd d1) 0) in
-                       let value_list = Array.to_list (Array.make (snd d1) Zero) in
-                       (init_rate_list, value_list)
-
-               (* check stockage at time t *)
-               else if Hashtbl.mem memory_hashtbl t then 
-                       (!rate_list, Hashtbl.find memory_hashtbl t)
-
-               (* blocks : "a ~ b", calculate rate list and value list at time t *)
-               else    
-                       (* mid_output_fun_list : (int -> value) list *)
-                       let mid_output_fun_list = get_value_fun_list output_beam_fun in
-
-                       (* b_input_fun_list : (int -> value) list *)
-                       let b_input_fun_list = List.map 
-                           (fun s -> fun t -> s (t - 1)) 
-                           (sublist mid_output_fun_list 0 (fst d2)) in
-
-                       (* b_input_beam : signal list *)
-                       let b_input_beam = List.map2 make_signal 
-                           (sublist !rate_list 0 (fst d2))
-                           b_input_fun_list in
-
-                       (* evaluation of block "b" *)
-                       let b_output_beam = (eval e2 subtree2 b_input_beam) in
-
-                       (* evaluation of block "a" *)
-                       let a_input_beam = b_output_beam @ input_beam in
-                       let mid_output_beam = eval e1 subtree1 a_input_beam in
-
-                       (* calculate rate list and value list at time t *)
-                       let mid_output_rate_list = List.map fst mid_output_beam in
-                       let mid_output_value_list = List.map (apply_to t) (List.map snd mid_output_beam) in
-
-                       (* update stockage *)
-                       let () = (rate_list := mid_output_rate_list) in
-                       let () = Hashtbl.add memory_hashtbl t mid_output_value_list in
-                       let () = Hashtbl.remove memory_hashtbl (t - delay_int) in
-                       (mid_output_rate_list, mid_output_value_list) in
-
-       (* output_beam : signal list *)
-       let output_beam = List.map2 make_signal !rate_list (get_value_fun_list output_beam_fun) in
-       output_beam in
-
-
-        (** Call for previous functions *)
-       match exp_faust with
-       |Const v -> interpret_const v input_beam
-       |Ident s -> interpret_ident s input_beam
-       |Par (e1, e2) -> interpret_par e1 e2 dimension_tree input_beam
-       |Seq (e1, e2) -> interpret_seq e1 e2 dimension_tree input_beam
-       |Split (e1, e2) -> interpret_split e1 e2 dimension_tree input_beam
-       |Merge (e1, e2) -> interpret_merge e1 e2 dimension_tree input_beam
-       |Rec (e1, e2) -> interpret_rec e1 e2 dimension_tree input_beam;;
-
-
-(** val extract_rate : (int * (int -> value)) list -> int list,
-gets the sample rate list from beam.*)
-let extract_rate = fun beam ->
-       let rate_naive_list = List.map fst beam in
-       let correct_rate r = 
-               if r = 0 then 44100 
-               else if r > 0 then r
-               else raise (Evaluation_Error "Rec2")
-       in
-       let rate_list = List.map correct_rate rate_naive_list in
-       rate_list;;
-
-
-(** val interpreter : faust_exp -> (int list) * (float array list) -> 
-(int list) * (int list) * (float array list)
-input: faust expression, sample rate list * input data list
-output: channel list * sample rate list * output data list.*)
-let interpreter exp_faust input = 
-       let () = print_endline("Interpretation...") in
-
-       (* make input beam *)
-       let input_beam = make_beam input in
-
-       (* estimate process dimension *)
-       let dimension_tree = dim exp_faust in
-
-       (* interprete output beam *)
-       let output_beam = eval exp_faust dimension_tree input_beam in
-
-       (* get rate list from output beam *)
-       let rate_list = extract_rate output_beam in
-
-       (* get channel list and data list from output beam *)
-       let (channel_list, float_array_list) = compute (List.map snd output_beam) in
-               (channel_list, rate_list, float_array_list);; 
-

diff --git a/interpretor/main.ml b/interpretor/main.ml
index b703a72..54b7265 100644 (file)
--- a/interpretor/main.ml
+++ b/interpretor/main.ml
@@ -28,7 +28,7 @@ let io_macro_to_string m = match m with
   | Input_Route_string -> ""
   | Output_Route_string -> "../output_sounds/"
   | Dsp_Route_string -> "";;
-
+ 
 
 (** val set_GC : unit -> unit *)
 let set_GC () = 

diff --git a/interpretor/faustexp.ml b/interpretor/process.ml
similarity index 96%
rename from interpretor/faustexp.ml
rename to interpretor/process.ml
index e8ff318..31cc6c9 100644 (file)
--- a/interpretor/faustexp.ml
+++ b/interpretor/process.ml
@@ -1,11 +1,12 @@
 (**
-       Module: Faustexp        
-       Description: Faust expression evaluation
+       Module: Process 
+       Description: Faust process classes
        @author WANG Haisheng   
-       Created: 03/06/2013     Modified: 04/08/2013
+       Created: 03/06/2013     Modified: 14/08/2013
 *)
 
 open Types;;
+open Aux;;
 open Basic;;
 open Symbol;;
 open Value;;
@@ -269,12 +270,6 @@ and proc_rec : faust_exp -> process_type =
                (beam_func t).(i) in
              Array.init self#dim#output (get_signal beam_at) in
 
-         let array_map2 = fun f -> fun a -> fun b ->
-           let n1 = Array.length a in
-           let n2 = Array.length b in
-           if n1 = n2 then Array.init n1 (fun i -> f a.(i) b.(i))
-           else raise (Process_error "Array.map2 size not matched.") in
-
          let feedback : (time -> value_type array) -> beam = 
            fun beam_at ->
              let signals_at = split beam_at in

diff --git a/interpretor/types.ml b/interpretor/types.ml
index a252ed9..3d14095 100644 (file)
--- a/interpretor/types.ml
+++ b/interpretor/types.ml
@@ -148,3 +148,10 @@ class type process_type =
       method delay : int
       method eval : beam_type -> beam_type
     end;;
+
+
+class type io_type = 
+    object
+      method read : string array -> beam_type
+      method write : value_type array array -> string array
+    end;;