Stdin, stdout and stderr updated, tested.

[Faustine.git] / interpreter / faustio.ml

diff --git a/interpreter/faustio.ml b/interpreter/faustio.ml
index 9539bf3..8cca058 100644 (file)
--- a/interpreter/faustio.ml
+++ b/interpreter/faustio.ml
@@ -12,7 +12,7 @@ open Signal;;
 open Beam;;
 open Aux;;
 
 open Beam;;
 open Aux;;
 

-exception Faustine_IO_Error of string;;
+exception IO_Error of string;;

 
 let csv_read_buffer_length = 0xFFFF;;
 
 
 let csv_read_buffer_length = 0xFFFF;;
 


@@ -28,7 +28,7 @@ class virtual io =
            _filename <- filename; _basename <- basename; _dir <- dir
 
     method virtual read : string array -> beam
            _filename <- filename; _basename <- basename; _dir <- dir
 
     method virtual read : string array -> beam

-    method virtual write : rate array -> data -> string array
+    method virtual write : rate array -> data -> string * string -> string array

     
     method private concat : data -> matrix = 
       fun (origin : data) ->
     
     method private concat : data -> matrix = 
       fun (origin : data) ->


@@ -70,34 +70,37 @@ 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 : rate array -> data -> string array = 
+    method write : rate array -> data -> string * string -> string array = 

       fun (rates : rate array) ->
        fun (output : data) ->
       fun (rates : rate array) ->
        fun (output : data) ->

-         let n = Array.length output in          
-         let paths = 
-           if _filename = "" then 
-             Array.init n (fun i -> 
-               _dir ^ _basename ^ (string_of_int (i + 1)) ^ ".wav") 
-           else if n = 1 then 
-             let () = Unix.unlink _filename in [|_filename|]
-           else raise (Faustine_IO_Error ("The process has several output signals, 
-                       however stdout supports only one output signal. Please remove 
-                       the '> " ^ _filename ^ "'.")) 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 freq ->
-             Sndfile.openfile ~info:(Sndfile.RDWR, file_format, channel, freq) path in
-           array_map3 openwr paths channels freqs in 
-
+         fun (info : string * string) ->
+           let stdoutput = fst info in
+           let basename = snd info in
+           let n = Array.length output in
+           let paths = 
+             if n = 1 && stdoutput <> "" && basename = "" then 
+               let () = Unix.unlink stdoutput in [|stdoutput|]
+             else if stdoutput = "" && basename <> "" then 
+               Array.init n (fun i -> 
+                 _dir ^ _basename ^ (string_of_int (i + 1)) ^ ".wav")          
+             else if stdoutput = "" && basename = "" then
+               raise (IO_Error "Please specify stdout or output basename.")
+             else raise (IO_Error "Stdout doesn't support multi-output process. Please remove '> stdout' and use --obasename --oformat.") 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 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
            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

-         paths
+           paths

   end;;
 
 
   end;;
 
 


@@ -132,33 +135,39 @@ 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 : rate array -> data -> string array = 
+    method write : rate array -> data -> string * string -> string array = 

       fun (rates : rate array) ->
        fun (data : data) ->
       fun (rates : rate array) ->
        fun (data : data) ->

-         let n = Array.length data in
-         let paths = 
-           if _filename = "" then 
-             Array.init n (fun i -> 
-               _dir ^ _basename ^ (string_of_int (i + 1)) ^ ".csv") 
-           else if n = 1 then 
-             let () = Unix.unlink _filename in [|_filename|]
-           else raise (Faustine_IO_Error ("The process has several output signals, 
-                       however stdout supports only one output signal. Please remove 
-                       the '> " ^ _filename ^ "'.")) in
-         let files = Array.map open_out paths in
-         let strings = 
-           let value2string : float array -> string =
-             fun (v : float array) ->
-               let strings = Array.map string_of_float v in
-               String.concat "," (Array.to_list strings) in
-           let signal2string : float array array -> string = 
-             fun (s : float array array) -> 
-               let lines = Array.map value2string s in
-               String.concat "\n" (Array.to_list lines) in
-           Array.map signal2string data in
-         let _ = array_map2 output_string files strings in
-         let _ = Array.map close_out files in
-         paths
+         fun (info : string * string) -> 
+           let stdoutput = fst info in
+           let basename = snd info in
+           let n = Array.length data in
+           let strings = 
+             let value2string : float array -> string =
+               fun (v : float array) ->
+                 let strings = Array.map string_of_float v in
+                 String.concat "," (Array.to_list strings) in
+             let signal2string : float array array -> string = 
+               fun (s : float array array) -> 
+                 let lines = Array.map value2string s in
+                 String.concat "\n" (Array.to_list lines) in
+             Array.map signal2string data in
+
+           if stdoutput = "" && basename = "" then
+             let _ = Array.map (output_string stdout) strings in
+             [|"Stdout"|]
+           else 
+             let paths = 
+               if n = 1 && stdoutput <> "" && basename = "" then 
+                 let () = Unix.unlink stdoutput in [|stdoutput|]
+               else if stdoutput = "" && basename <> "" then 
+                 Array.init n (fun i -> 
+                   _dir ^ _basename ^ (string_of_int (i + 1)) ^ ".csv") 
+               else raise (IO_Error "Stdout doesn't support multi-output process. Please remove '> stdout' and use --obasename --oformat.") in
+              let files = Array.map open_out paths in
+             let _ = array_map2 output_string files strings in
+             let _ = Array.map close_out files in
+             paths

   end;;
 
 
   end;;
 
 


@@ -166,7 +175,7 @@ class iomanager =
   object (self)
     val wave = new waveio
     val csv = new csvio
   object (self)
     val wave = new waveio
     val csv = new csvio

-    val mutable _output_filename = ""
+    val mutable _filename = ""

     val mutable _dir = ""
     val mutable _format = ""
     val mutable _basename = ""
     val mutable _dir = ""
     val mutable _format = ""
     val mutable _basename = ""


@@ -190,29 +199,40 @@ class iomanager =
        fun (dir : string) ->
          fun (format : string) ->
            fun (basename : string) ->
        fun (dir : string) ->
          fun (format : string) ->
            fun (basename : string) ->

-             _output_filename <- filename;
+             _filename <- filename;

              _dir <- dir; 
              _format <- format; 
              _basename <- basename;
              _dir <- dir; 
              _format <- format; 
              _basename <- basename;

-             wave#set _output_filename _dir _basename;
-             csv#set _output_filename _dir _basename
+             wave#set _filename _dir _basename;
+             csv#set _filename _dir _basename

 
     method write : rate array -> data -> string array = 
       fun (rates : rate array) ->
        fun (data : data) ->
 
     method write : rate array -> data -> string array = 
       fun (rates : rate array) ->
        fun (data : data) ->

-         if _output_filename = "" then (
-           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."))
-         else (
-           let format = format_of_file _output_filename in
-           if format = "wav" then
-             wave#write rates data
-           else if format = "csv" then
-             csv#write rates data
-           else raise (Invalid_argument ("unknown format" ^ format)))
+         let n = Array.length rates in
+         if n = 1 then (
+           if _filename <> "" then (
+             let fmt = format_of_file _filename in
+             if fmt = "csv" then csv#write rates data (_filename, "")
+             else if fmt = "wav" then wave#write rates data (_filename, "")
+             else raise (IO_Error "Unknown stdout format."))
+           else if _basename <> "" && _format <> "" then (
+             if _format = "csv" then csv#write rates data ("", _basename)
+             else if _format = "wav" then wave#write rates data ("", _basename)
+             else raise (IO_Error "Unknown --oformat."))
+           else if _filename = "" && _basename = "" && _format = "" then
+             csv#write rates data ("", "")
+           else raise (IO_Error "Please specify both --obasename and --oformat."))
+
+         else if n > 1 then (
+           if _filename <> "" then
+             raise (IO_Error "Stdout doesn't support multi-output process. Please remove '> stdout' and use --obasename --oformat.")
+            else if _basename <> "" && _format <> "" then (
+             if _format = "csv" then csv#write rates data ("", _basename)
+             else if _format = "wav" then wave#write rates data ("", _basename)
+             else raise (IO_Error "Unknown --oformat."))
+           else raise (IO_Error "Please specify both --obasename and --oformat."))
+
+         else 
+           [|"no output signal."|]

   end;;
   end;;