libsndfile-ocaml source files.

[Faustine.git] / interpretor / faustio.ml

diff --git a/interpretor/faustio.ml b/interpretor/faustio.ml
index dc1ee1d..7df74a6 100644 (file)
--- a/interpretor/faustio.ml
+++ b/interpretor/faustio.ml
@@ -12,17 +12,25 @@ open Signal;;
 open Beam;;
 open Aux;;
 
 open Beam;;
 open Aux;;
 

-let default_output_path = "../output_sounds/";;

 let csv_read_buffer_length = 0xFFFF;;
 
 class virtual io = 
   object
 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 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) ->
+    method virtual write : rate array -> data -> string array
+    
+    method private concat : data -> matrix = 
+      fun (origin : data) ->

        Array.map Array.concat (Array.map Array.to_list origin)
        Array.map Array.concat (Array.map Array.to_list origin)

-    method private channels : float array array array -> int array = 
+
+    method private channels : data -> int array = 

       fun data ->
        let get_channel = fun s -> 
          let l = Array.length s in
       fun data ->
        let get_channel = fun s -> 
          let l = Array.length s in


@@ -43,7 +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 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
            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


@@ -53,32 +66,26 @@ class waveio : io_type =
            array_map2 (new signal) rates (Array.map stream2func containers) in
          new beam signals
 
            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) ->
-       fun (output : float array array array) ->
-         let () = print_string("    Faustine -> Writing wave files...") in
-         let tic = Sys.time () in
-
+    method write : rate array -> data -> string array = 
+      fun (rates : rate array) ->
+       fun (output : data) ->

          let n = Array.length output in          
          let paths = Array.init n (fun i -> 
          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 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 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 () = 

            let data = self#concat output in
            let _ = array_map2 Sndfile.write files data in
            let _ = Array.map Sndfile.close files in
            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;;
 
          paths
   end;;
 


@@ -106,7 +113,7 @@ class csvio : io_type =
        let values = 
          let convertor = new value Zero in
          Array.map (convertor#of_float_array) data in
        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) ->
 
     method read : string array -> beam =
       fun (paths : string array) ->


@@ -114,16 +121,13 @@ class csvio : io_type =
        let signals = Array.map self#csvread files in
        new beam signals
 
        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) ->
-       fun (data : float array array array) ->
-         let () = print_string("    Faustine -> Writing csv files...") in
-         let tic = Sys.time () in
-         
+    method write : rate array -> data -> string array = 
+      fun (rates : rate array) ->
+       fun (data : data) ->

          let paths = 
            let n = Array.length data in
            let path_pattern = fun i -> 
          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
            Array.init n path_pattern in          
 
          let files = Array.map open_out paths in


@@ -139,8 +143,57 @@ class csvio : io_type =
            Array.map signal2string data in
          let _ = array_map2 output_string files strings in
          let _ = Array.map close_out files in
            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;;
          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 : rate array -> data -> string array = 
+      fun (rates : rate array) ->
+       fun (data : data) ->
+         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;;