From 8af0757b61990767f2a85e68f535a5af9976fd79 Mon Sep 17 00:00:00 2001
From: Taybin Rutkin <taybin@taybin.com>
Date: Sat, 24 Sep 2005 19:13:41 +0000
Subject: libardour added.

git-svn-id: svn://localhost/trunk/ardour2@17 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/ardour/sndfile_helpers.cc | 162 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 162 insertions(+)
 create mode 100644 libs/ardour/sndfile_helpers.cc

(limited to 'libs/ardour/sndfile_helpers.cc')

diff --git a/libs/ardour/sndfile_helpers.cc b/libs/ardour/sndfile_helpers.cc
new file mode 100644
index 0000000000..d9e7aa563a
--- /dev/null
+++ b/libs/ardour/sndfile_helpers.cc
@@ -0,0 +1,162 @@
+#include <map>
+
+#include <ardour/sndfile_helpers.h>
+
+#include "i18n.h"
+
+using std::map;
+
+const char * const sndfile_header_formats_strings[SNDFILE_HEADER_FORMATS+1] = {
+	N_("WAV"),
+	N_("AIFF"),
+	N_("raw (no header)"),
+	N_("PAF (Ensoniq Paris)"),
+	N_("AU (Sun/NeXT)"),
+	N_("IRCAM"),
+	N_("W64 (64 bit WAV)"),
+	0
+};
+
+int sndfile_header_formats[SNDFILE_HEADER_FORMATS] = {
+	SF_FORMAT_WAV,
+	SF_FORMAT_AIFF,
+	SF_FORMAT_RAW,
+	SF_FORMAT_PAF,
+	SF_FORMAT_AU,
+	SF_FORMAT_IRCAM,
+	SF_FORMAT_W64
+};
+
+const char * const sndfile_bitdepth_formats_strings[SNDFILE_BITDEPTH_FORMATS+1] = {
+	N_("16 bit"),
+	N_("24 bit"),
+	N_("32 bit"),
+	N_("8 bit"),
+	N_("float"),
+	0
+};
+
+int sndfile_bitdepth_formats[SNDFILE_BITDEPTH_FORMATS] = {
+	SF_FORMAT_PCM_16,
+	SF_FORMAT_PCM_24,
+	SF_FORMAT_PCM_32,
+	SF_FORMAT_PCM_S8,
+	SF_FORMAT_FLOAT
+};
+
+const char * const sndfile_endian_formats_strings[SNDFILE_ENDIAN_FORMATS+1] = {
+	N_("Little-endian (Intel)"),
+	N_("Big-endian (Mac)"),
+	0
+};
+
+int sndfile_endian_formats[SNDFILE_ENDIAN_FORMATS] = {
+	SF_ENDIAN_LITTLE,
+	SF_ENDIAN_BIG
+};
+
+int
+sndfile_header_format_from_string (string str)
+{
+	for (int n = 0; sndfile_header_formats_strings[n]; ++n) {
+		if (str == sndfile_header_formats_strings[n]) {
+			return sndfile_header_formats[n];
+		}
+	}
+	return -1;
+}
+
+int
+sndfile_bitdepth_format_from_string (string str)
+{
+	for (int n = 0; sndfile_bitdepth_formats_strings[n]; ++n) {
+		if (str == sndfile_bitdepth_formats_strings[n]) {
+			return sndfile_bitdepth_formats[n];
+		}
+	}
+	return -1;
+}
+
+int
+sndfile_endian_format_from_string (string str)
+{
+	for (int n = 0; sndfile_endian_formats_strings[n]; ++n) {
+		if (str == sndfile_endian_formats_strings[n]) {
+			return sndfile_endian_formats[n];
+		}
+	}
+	return -1;
+}
+
+int
+sndfile_data_width (int format)
+{
+	int tval = format & 0xf;
+
+	switch (tval) {
+	  case SF_FORMAT_PCM_S8:
+	  case SF_FORMAT_PCM_U8:
+		return 8;
+	  case SF_FORMAT_PCM_16:
+		return 16;
+	  case SF_FORMAT_PCM_24:
+		return 24;
+	  case SF_FORMAT_PCM_32:
+		return 32;
+	  case SF_FORMAT_FLOAT:
+		return 1; // heh, heh
+	  default:
+	    // we don't handle anything else within ardour
+		return 0;
+	}
+}
+
+string 
+sndfile_major_format(int format)
+{
+	static map<int, string> m;
+
+	if(m.empty()){
+		SF_FORMAT_INFO format_info;
+		int count;
+		sf_command(0, SFC_GET_FORMAT_MAJOR_COUNT, &count, sizeof (int));
+		for (int i = 0; i < count; ++i){
+			format_info.format = i;
+			sf_command (0, SFC_GET_FORMAT_MAJOR, 
+					&format_info, sizeof (format_info));
+			m[format_info.format & SF_FORMAT_TYPEMASK] = format_info.name;
+		}
+	}
+	
+	map<int, string>::iterator p = m.find(format & SF_FORMAT_TYPEMASK);
+	if(p != m.end()){
+		return m[format & SF_FORMAT_TYPEMASK];
+	} else {
+		return "-Unknown-";
+	}
+}
+
+string
+sndfile_minor_format(int format)
+{
+	static map<int, string> m;
+
+	if(m.empty()){
+		SF_FORMAT_INFO format_info;
+		int count;
+		sf_command(0, SFC_GET_FORMAT_SUBTYPE_COUNT, &count, sizeof (int));
+		for (int i = 0; i < count; ++i){
+			format_info.format = i;
+			sf_command (0, SFC_GET_FORMAT_SUBTYPE, 
+					&format_info, sizeof (format_info));
+			m[format_info.format & SF_FORMAT_SUBMASK] = format_info.name;
+		}
+	}
+	
+	map<int, string>::iterator p = m.find(format & SF_FORMAT_SUBMASK);
+	if(p != m.end()){
+		return m[format & SF_FORMAT_SUBMASK];
+	} else {
+		return "-Unknown-";
+	}
+}
-- 
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