Refactoring of Signal class by adding a rate class.

[Faustine.git] / interpretor / faustio.ml

diff --git a/interpretor/faustio.ml b/interpretor/faustio.ml
index 3094ce9..8518b5b 100644 (file)
--- a/interpretor/faustio.ml
+++ b/interpretor/faustio.ml
@@ -24,7 +24,7 @@ class virtual io =
          _basename <- basename; _dir <- dir
 
     method virtual read : string array -> beam
-    method virtual write : int array -> float array array array -> string array
+    method virtual write : rate array -> float array array array -> string array
     
     method private concat : float array array array -> float array array = 
       fun (origin : float array array array) ->
@@ -51,7 +51,12 @@ class waveio : io_type =
            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 make_rate = 
+             fun (denom : int) ->
+               fun (num : int) ->
+                 new rate num denom in
+           let nums = Array.map Sndfile.samplerate files in
+           let rates = Array.map (make_rate 1) nums 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
@@ -61,20 +66,22 @@ class waveio : io_type =
            array_map2 (new signal) rates (Array.map stream2func containers) in
          new beam signals
 
-    method write : int array -> float array array array -> string array = 
-      fun (rates : int array) ->
+    method write : rate array -> float array array array -> string array = 
+      fun (rates : rate array) ->
        fun (output : float array array array) ->
          let n = Array.length output in          
          let paths = Array.init n (fun i -> 
            _dir ^ _basename ^ (string_of_int (i + 1)) ^ ".wav") in
+         let get_freq = fun (r : rate) -> r#to_int in
+         let freqs = Array.map get_freq rates in
 
          let files = 
            let channels = self#channels output in 
            let file_format = Sndfile.format 
                Sndfile.MAJOR_WAV Sndfile.MINOR_PCM_16 in
-           let openwr = fun path -> fun channel -> fun rate ->
-             Sndfile.openfile ~info:(Sndfile.RDWR, file_format, channel, rate) path in
-           array_map3 openwr paths channels rates in 
+           let openwr = fun path -> fun channel -> fun freq ->
+             Sndfile.openfile ~info:(Sndfile.RDWR, file_format, channel, freq) path in
+           array_map3 openwr paths channels freqs in 
 
            let data = self#concat output in
            let _ = array_map2 Sndfile.write files data in
@@ -106,7 +113,7 @@ class csvio : io_type =
        let values = 
          let convertor = new value Zero in
          Array.map (convertor#of_float_array) data in
-       new signal 0 (Array.get values)
+       new signal (new rate 0 1) (Array.get values)
 
     method read : string array -> beam =
       fun (paths : string array) ->
@@ -114,8 +121,8 @@ class csvio : io_type =
        let signals = Array.map self#csvread files in
        new beam signals
 
-    method write : int array -> float array array array -> string array = 
-      fun (rates : int array) ->
+    method write : rate array -> float array array array -> string array = 
+      fun (rates : rate array) ->
        fun (data : float array array array) ->
          let paths = 
            let n = Array.length data in
@@ -178,8 +185,8 @@ class iomanager =
            wave#set _dir _basename;
            csv#set _dir _basename
 
-    method write : int array -> float array array array -> string array = 
-      fun (rates : int array) ->
+    method write : rate array -> float array array array -> string array = 
+      fun (rates : rate array) ->
        fun (data : float array array array) ->
          if _format = "" then
            raise (Invalid_argument "output format unset.")