1 files changed, 137 insertions, 0 deletions
diff --git a/apps/audiofile.h b/apps/audiofile.h
new file mode 100644
index 0000000..aaf7ec0
--- /dev/null
+++ b/apps/audiofile.h
@@ -0,0 +1,137 @@
+// -------------------------------------------------------------------------
+//
+//    Copyright (C) 2009-2014 Fons Adriaensen <fons@linuxaudio.org>
+//    
+//    This program is free software; you can redistribute it and/or modify
+//    it under the terms of the GNU General Public License as published by
+//    the Free Software Foundation; either version 2 of the License, or
+//    (at your option) any later version.
+//
+//    This program is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU General Public License for more details.
+//
+//    You should have received a copy of the GNU General Public License
+//    along with this program; if not, write to the Free Software
+//    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// -------------------------------------------------------------------------
+
+
+#ifndef __AUDIOFILE_H
+#define __AUDIOFILE_H
+
+
+#include <stdio.h>
+#include <stdint.h>
+#include <sndfile.h>
+#include "dither.h"
+
+
+class Audiofile
+{
+public:
+
+    enum
+    {
+        MODE_NONE,
+	MODE_READ,
+	MODE_WRITE
+    };
+
+    enum
+    {
+	TYPE_OTHER,
+	TYPE_CAF,
+        TYPE_WAV,
+        TYPE_AMB,
+	TYPE_AIFF,
+	TYPE_FLAC
+    };
+
+    enum
+    {
+	FORM_OTHER,
+        FORM_16BIT,
+	FORM_24BIT,
+	FORM_32BIT,
+        FORM_FLOAT,
+    };
+
+    enum
+    {
+	DITHER_NONE,
+        DITHER_RECT,
+	DITHER_TRIA,
+	DITHER_LIPS,
+    };
+
+    enum
+    {
+        ERR_NONE    = 0,
+	ERR_MODE    = -1,
+	ERR_TYPE    = -2,
+	ERR_FORM    = -3,
+	ERR_OPEN    = -4,
+	ERR_SEEK    = -5,
+	ERR_DATA    = -6,
+	ERR_READ    = -7,
+	ERR_WRITE   = -8
+    };
+
+    enum { BUFFSIZE = 1024 };
+
+    Audiofile (void);
+    ~Audiofile (void);
+
+    int mode (void) const { return _mode; }
+    int type (void) const { return _type; }
+    int form (void) const { return _form; }
+    int rate (void) const { return _rate; }
+    int chan (void) const { return _chan; }
+    uint64_t size (void) const { return _size; }
+
+    const char *typestr (void) const { return _typestr [_type]; }
+    const char *formstr (void) const { return _formstr [_form]; }
+    const char *dithstr (void) const { return _dithstr [_dith_type]; }
+
+    int enc_type (const char *s);
+    int enc_form (const char *s);
+    int enc_dith (const char *s);
+
+    int open_read (const char *name);
+    int open_write (const char *name, int type, int form, int rate, int chan);
+    int close (void);
+    int set_dither (int type);
+    float *get_buffer (void);
+
+    int64_t seek (int64_t posit, int mode = SEEK_SET);
+    int read  (float *data, uint64_t frames);
+    int write (float *data, uint64_t frames);
+
+
+private:
+
+    void clear (void);
+
+    SNDFILE  *_sndfile;
+    int       _mode;
+    int       _type;
+    int       _form;
+    int       _rate;
+    int       _chan;
+    uint64_t  _size;
+    int       _dith_type;
+    Dither   *_dith_proc;
+    int16_t  *_dith_buff;
+    float    *_data_buff;
+
+    static const char *_typestr [];
+    static const char *_formstr [];
+    static const char *_dithstr [];
+};
+
+
+#endif
+