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livetrax/libs/ardour/sndfile_helpers.cc

203 lines
4.7 KiB
C++

/*
Copyright (C) 2000-2007 Paul Davis
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 COMPILER_MSVC
#include <strings.h>
#endif
#include <map>
#include <sndfile.h>
#include "ardour/sndfile_helpers.h"
#include "i18n.h"
using std::map;
using namespace std;
const char * const sndfile_header_formats_strings[SNDFILE_HEADER_FORMATS+1] = {
N_("WAV"),
N_("AIFF"),
N_("CAF"),
N_("W64 (64-bit WAV)"),
N_("FLAC"),
N_("Ogg/Vorbis"),
N_("raw (no header)"),
0
};
const char* const sndfile_file_endings_strings[SNDFILE_HEADER_FORMATS+1] = {
N_(".wav"),
N_(".aiff"),
N_(".caf"),
N_(".w64"),
N_(".flac"),
N_(".ogg"),
N_(".raw"),
0
};
int sndfile_header_formats[SNDFILE_HEADER_FORMATS] = {
SF_FORMAT_WAV,
SF_FORMAT_AIFF,
SF_FORMAT_CAF,
SF_FORMAT_W64,
SF_FORMAT_FLAC,
SF_FORMAT_OGG,
SF_FORMAT_RAW
};
const char * const sndfile_bitdepth_formats_strings[SNDFILE_BITDEPTH_FORMATS+1] = {
N_("Signed 16-bit PCM"),
N_("Signed 24-bit PCM"),
N_("Signed 32-bit PCM"),
N_("Signed 8-bit PCM"),
N_("32-bit 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 (PowerPC)"),
0
};
int sndfile_endian_formats[SNDFILE_ENDIAN_FORMATS] = {
SF_ENDIAN_LITTLE,
SF_ENDIAN_BIG
};
int
sndfile_header_format_by_index (int index)
{
if (index >= 0 && index < SNDFILE_HEADER_FORMATS) {
return sndfile_header_formats[index];
}
return -1;
}
int
sndfile_bitdepth_format_by_index (int index)
{
if (index >= 0 && index < SNDFILE_BITDEPTH_FORMATS) {
return sndfile_bitdepth_formats[index];
}
return -1;
}
int
sndfile_endian_format_by_index (int index)
{
if (index >= 0 && index < SNDFILE_ENDIAN_FORMATS) {
return sndfile_endian_formats[index];
}
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; /* ridiculous but used as a magic value */
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;
/* normalize a couple of names rather than use what libsndfile gives us */
if (strncasecmp (format_info.name, "OGG", 3) == 0) {
m[format_info.format & SF_FORMAT_TYPEMASK] = "Ogg";
} else if (strncasecmp (format_info.name, "WAV", 3) == 0) {
m[format_info.format & SF_FORMAT_TYPEMASK] = "WAV";
} else {
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-";
}
}