X-Git-Url: https://scm.cri.mines-paristech.fr/git/Faustine.git/blobdiff_plain/a6be79ccb7456a5181561f094c1f2a4f90aadb02..a3490abb2f472827f39b061c55029949ebb3eba5:/interpretor/faustio.ml?ds=inline

diff --git a/interpretor/faustio.ml b/interpretor/faustio.ml
index dc1ee1d..3094ce9 100644
--- a/interpretor/faustio.ml
+++ b/interpretor/faustio.ml
@@ -12,16 +12,24 @@ open Signal;;
 open Beam;;
 open Aux;;
 
-let default_output_path = "../output_sounds/";;
 let csv_read_buffer_length = 0xFFFF;;
 
 class virtual io = 
   object
+    val mutable _basename = ""
+    val mutable _dir = ""
+    method set : string -> string -> unit = 
+      fun (dir : string) ->
+	fun (basename : string) ->
+	  _basename <- basename; _dir <- dir
+
     method virtual read : string array -> beam
     method virtual write : int array -> float array array array -> string array
+    
     method private concat : float array array array -> float array array = 
       fun (origin : float array array array) ->
 	Array.map Array.concat (Array.map Array.to_list origin)
+
     method private channels : float array array array -> int array = 
       fun data ->
 	let get_channel = fun s -> 
@@ -56,12 +64,9 @@ class waveio : io_type =
     method write : int array -> float array array array -> string array = 
       fun (rates : int array) ->
 	fun (output : float array 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 + 1)) ^ ".wav") in
+	    _dir ^ _basename ^ (string_of_int (i + 1)) ^ ".wav") in
 
 	  let files = 
 	    let channels = self#channels output in 
@@ -71,14 +76,9 @@ class waveio : io_type =
 	      Sndfile.openfile ~info:(Sndfile.RDWR, file_format, channel, rate) path in
 	    array_map3 openwr paths channels rates in 
 
-	  let () = 
 	    let data = self#concat 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;;
 
@@ -117,13 +117,10 @@ class csvio : io_type =
     method write : int array -> float array array array -> string array = 
       fun (rates : int array) ->
 	fun (data : float array array array) ->
-	  let () = print_string("    Faustine -> Writing csv files...") in
-	  let tic = Sys.time () in
-	  
 	  let paths = 
 	    let n = Array.length data in
 	    let path_pattern = fun i -> 
-	      default_output_path ^ "output" ^ (string_of_int (i + 1)) ^ ".csv" in
+	      _dir ^ _basename ^ (string_of_int (i + 1)) ^ ".csv" in
 	    Array.init n path_pattern in	  
 
 	  let files = Array.map open_out paths in
@@ -139,8 +136,57 @@ class csvio : io_type =
 	    Array.map signal2string data in
 	  let _ = array_map2 output_string files strings in
 	  let _ = Array.map close_out files in
-	  let toc = Sys.time () in
-	  let () = print_endline 
-	      (" Done. (duration: " ^ (string_of_float (toc -. tic)) ^ "s)") in
 	  paths
   end;;
+
+
+class iomanager = 
+  object (self)
+    val wave = new waveio
+    val csv = new csvio
+    val mutable _dir = ""
+    val mutable _format = ""
+    val mutable _basename = ""
+
+    method private grab_format : string -> string = 
+      fun (path : string) ->
+	let fragments = Str.split (Str.regexp "\.") path in
+	let n = List.length fragments in
+	List.nth fragments (n - 1)	
+
+    method read : string list -> beam_type = 
+      fun (paths : string list) ->
+	let formats = List.map self#grab_format paths in
+	let read_one : string -> string -> beam_type = 
+	  fun (format : string) ->
+	    fun (path : string) ->
+	      if format = "wav" then wave#read [|path|]
+	      else if format = "csv" then csv#read [|path|]
+	      else raise (Invalid_argument "Unknown format.") in
+	let beams = List.map2 read_one formats paths in
+	let concat : beam_type -> beam_type -> beam_type = 
+	  fun b1 -> fun b2 -> b1#append b2 in
+	List.fold_left concat (new beam [||]) beams
+	      
+    method set : string -> string -> string -> unit = 
+      fun (dir : string) ->
+	fun (format : string) ->
+	  fun (basename : string) ->
+	    _dir <- dir; 
+	    _format <- format; 
+	    _basename <- basename;
+	    wave#set _dir _basename;
+	    csv#set _dir _basename
+
+    method write : int array -> float array array array -> string array = 
+      fun (rates : int array) ->
+	fun (data : float array array array) ->
+	  if _format = "" then
+	    raise (Invalid_argument "output format unset.")
+	  else if _format = "wav" then 
+	    wave#write rates data
+	  else if _format = "csv" then
+	    csv#write rates data 
+	  else raise (Invalid_argument "unknown format.")
+	
+  end;;