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-- Programmed by Jedidiah Barber
-- Released into the public domain
-- This program opens the file supplied as a command line argument, outputs the
-- file info from it, then closes the file. No modifications are made.
with
Ada.Command_Line,
Ada.Directories,
Ada.Text_IO,
Libsndfile;
procedure File_Info_Example is
package ACom renames Ada.Command_Line;
package ADir renames Ada.Directories;
package TIO renames Ada.Text_IO;
My_Info : Libsndfile.File_Info := Libsndfile.Blank_Info;
My_Sound_File : Libsndfile.Sound_File;
begin
if ACom.Argument_Count < 1 then
TIO.Put_Line ("No filename provided");
ACom.Set_Exit_Status (ACom.Failure);
return;
end if;
if not ADir.Exists (ACom.Argument (1)) then
TIO.Put_Line ("File does not exist");
ACom.Set_Exit_Status (ACom.Failure);
return;
end if;
TIO.Put_Line ("Load file " & ACom.Argument (1));
My_Sound_File.Open (ACom.Argument (1), Libsndfile.Read_Only, My_Info);
TIO.New_Line;
TIO.Put_Line ("Open frame count:" &
Libsndfile.Count_Type'Image (Libsndfile.Frames (My_Info)));
TIO.Put_Line ("Open sample rate:" & Natural'Image (Libsndfile.Rate (My_Info)));
TIO.Put_Line ("Open channel count:" & Natural'Image (Libsndfile.Channels (My_Info)));
TIO.Put_Line ("Open major format: " &
Libsndfile.Major_Format'Image (Libsndfile.Major (My_Info)));
TIO.Put_Line ("Open minor format: " &
Libsndfile.Minor_Format'Image (Libsndfile.Minor (My_Info)));
TIO.Put_Line ("Open endianness: " &
Libsndfile.Endianness'Image (Libsndfile.Endian (My_Info)));
TIO.Put_Line ("Open section count:" & Natural'Image (Libsndfile.Sections (My_Info)));
TIO.Put_Line ("Open seekable: " & Boolean'Image (Libsndfile.Seekable (My_Info)));
TIO.New_Line;
My_Sound_File.Close;
TIO.Put_Line ("File closed");
end File_Info_Example;
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