+++ /dev/null
-(**
- 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)");;
-
projects / Faustine.git / blobdiff