290 lines
6.3 KiB
C++
290 lines
6.3 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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FileFormats.cpp
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Dominic Mazzoni
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*******************************************************************//*!
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\file FileFormats.cpp
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\brief Works with libsndfile to provide encoding and other file
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information.
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*//*******************************************************************/
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#include <wx/arrstr.h>
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#include <wx/intl.h>
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#include "sndfile.h"
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#ifndef SNDFILE_1
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#error Requires libsndfile 1.0 or higher
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#endif
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#include "FileFormats.h"
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#include "Internat.h"
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//
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// enumerating headers
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//
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int sf_num_headers()
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{
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int count;
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sf_command(NULL, SFC_GET_FORMAT_MAJOR_COUNT,
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&count, sizeof(count));
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return count;
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}
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wxString sf_header_index_name(int format)
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{
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SF_FORMAT_INFO format_info;
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memset(&format_info, 0, sizeof(format_info));
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format_info.format = format;
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sf_command(NULL, SFC_GET_FORMAT_MAJOR,
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&format_info, sizeof (format_info)) ;
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return LAT1CTOWX(format_info.name);
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}
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unsigned int sf_header_index_to_type(int i)
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{
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SF_FORMAT_INFO format_info ;
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memset(&format_info, 0, sizeof(format_info));
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format_info.format = i;
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sf_command (NULL, SFC_GET_FORMAT_MAJOR,
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&format_info, sizeof (format_info));
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return format_info.format & SF_FORMAT_TYPEMASK;
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}
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//
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// enumerating encodings
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//
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int sf_num_encodings()
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{
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int count ;
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sf_command (NULL, SFC_GET_FORMAT_SUBTYPE_COUNT, &count, sizeof (int)) ;
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return count;
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}
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wxString sf_encoding_index_name(int i)
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{
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SF_FORMAT_INFO format_info ;
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memset(&format_info, 0, sizeof(format_info));
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format_info.format = i;
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sf_command (NULL, SFC_GET_FORMAT_SUBTYPE,
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&format_info, sizeof (format_info));
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return LAT1CTOWX(format_info.name);
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}
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unsigned int sf_encoding_index_to_subtype(int i)
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{
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SF_FORMAT_INFO format_info ;
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memset(&format_info, 0, sizeof(format_info));
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format_info.format = i;
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sf_command (NULL, SFC_GET_FORMAT_SUBTYPE,
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&format_info, sizeof (format_info));
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return format_info.format & SF_FORMAT_SUBMASK;
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}
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//
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// getting info about an actual SF format
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//
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wxString sf_header_name(int format)
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{
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SF_FORMAT_INFO format_info;
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memset(&format_info, 0, sizeof(format_info));
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format_info.format = (format & SF_FORMAT_TYPEMASK);
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sf_command(NULL, SFC_GET_FORMAT_INFO, &format_info, sizeof(format_info));
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return LAT1CTOWX(format_info.name);
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}
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wxString sf_header_shortname(int format)
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{
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SF_FORMAT_INFO format_info;
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char *tmp;
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int i;
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wxString s;
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memset(&format_info, 0, sizeof(format_info));
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format_info.format = (format & SF_FORMAT_TYPEMASK);
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sf_command(NULL, SFC_GET_FORMAT_INFO, &format_info, sizeof(format_info));
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tmp = (char *)malloc(strlen(format_info.name)+1);
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strcpy(tmp, format_info.name);
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i = 0;
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while(tmp[i]) {
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if (tmp[i]==' ')
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tmp[i] = 0;
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else
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i++;
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}
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s = LAT1CTOWX(tmp);
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free(tmp);
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return s;
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}
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wxString sf_header_extension(int format)
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{
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SF_FORMAT_INFO format_info;
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memset(&format_info, 0, sizeof(format_info));
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format_info.format = (format & SF_FORMAT_TYPEMASK);
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sf_command(NULL, SFC_GET_FORMAT_INFO, &format_info, sizeof(format_info));
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return LAT1CTOWX(format_info.extension);
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}
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wxString sf_encoding_name(int encoding)
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{
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SF_FORMAT_INFO format_info;
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memset(&format_info, 0, sizeof(format_info));
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format_info.format = (encoding & SF_FORMAT_SUBMASK);
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sf_command(NULL, SFC_GET_FORMAT_INFO, &format_info, sizeof(format_info));
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return LAT1CTOWX(format_info.name);
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}
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int sf_num_simple_formats()
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{
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int count ;
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sf_command (NULL, SFC_GET_SIMPLE_FORMAT_COUNT, &count, sizeof (int)) ;
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return count;
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}
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SF_FORMAT_INFO g_format_info;
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SF_FORMAT_INFO *sf_simple_format(int i)
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{
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memset(&g_format_info, 0, sizeof(g_format_info));
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g_format_info.format = i;
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sf_command (NULL, SFC_GET_SIMPLE_FORMAT,
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&g_format_info, sizeof(g_format_info));
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return &g_format_info;
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}
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bool sf_subtype_more_than_16_bits(unsigned int format)
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{
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unsigned int subtype = format & SF_FORMAT_SUBMASK;
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return (subtype == SF_FORMAT_FLOAT ||
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subtype == SF_FORMAT_DOUBLE ||
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subtype == SF_FORMAT_PCM_24 ||
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subtype == SF_FORMAT_PCM_32);
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}
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bool sf_subtype_is_integer(unsigned int format)
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{
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unsigned int subtype = format & SF_FORMAT_SUBMASK;
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return (subtype == SF_FORMAT_PCM_16 ||
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subtype == SF_FORMAT_PCM_24 ||
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subtype == SF_FORMAT_PCM_32);
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}
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wxArrayString sf_get_all_extensions()
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{
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wxArrayString exts;
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SF_FORMAT_INFO format_info;
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int count, k;
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memset(&format_info, 0, sizeof(format_info));
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sf_command(NULL, SFC_GET_FORMAT_MAJOR_COUNT,
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&count, sizeof(count));
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for(k=0; k<count; k++) {
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format_info.format = k;
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sf_command(NULL, SFC_GET_FORMAT_MAJOR,
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&format_info, sizeof (format_info)) ;
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exts.Add(LAT1CTOWX(format_info.extension));
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}
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// Some other extensions that are often sound files
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// but aren't included by libsndfile
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exts.Add(wxT("aif")); // AIFF file with a DOS-style extension
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exts.Add(wxT("ircam"));
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exts.Add(wxT("snd"));
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exts.Add(wxT("svx"));
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exts.Add(wxT("svx8"));
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exts.Add(wxT("sv16"));
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return exts;
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}
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#ifdef __WXMAC__
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// TODO: find out the appropriate OSType
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// for the ones with an '????'. The others
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// are at least the same type used by
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// SoundApp.
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#define NUM_HEADERS 13
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OSType MacNames[NUM_HEADERS] = {
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'WAVE', // WAVE
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'AIFF', // AIFF
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'NeXT', // Sun/NeXT AU
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'BINA', // RAW i.e. binary
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'PAR ', // ??? Ensoniq PARIS
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'8SVX', // Amiga IFF / SVX8
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'NIST', // ??? NIST/Sphere
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'VOC ', // VOC
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'\?\?\?\?', // ?? Propellorheads Rex
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'SF ', // ?? IRCAM
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'W64 ', // ?? Wave64
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'MAT4', // ?? Matlab 4
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'MAT5', // ?? Matlab 5
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};
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OSType sf_header_mactype(int format)
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{
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if (format >= 0x10000)
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return MacNames[(format/0x10000)-1];
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else if (format>=0 && format<NUM_HEADERS)
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return MacNames[format];
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else
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return '\?\?\?\?';
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}
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#endif // __WXMAC__
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// Indentation settings for Vim and Emacs and unique identifier for Arch, a
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// version control system. Please do not modify past this point.
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//
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// Local Variables:
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// c-basic-offset: 3
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// indent-tabs-mode: nil
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// End:
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//
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// vim: et sts=3 sw=3
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// arch-tag: d0b9251f-2d6c-4815-b732-b799824cb289
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