SNDFILE *sf_open(const char *path, int mode, SF_INFO *info)
{
if (path == NULL || info == NULL)
return NULL;
switch (mode) {
case SFM_READ:
return sf_open_read(path, info);
case SFM_WRITE:
return sf_open_write(path, info);
default:
return NULL;
}
}
static void
stdout_test (char *str, int typemajor, int count)
{ static short data [BUFFER_LEN] ;
SNDFILE *file ;
SF_INFO sfinfo ;
unsigned int k, total, this_write ;
fprintf (stderr, " %-5s : writing %d samples to stdout ... ", str, count) ;
sfinfo.samplerate = 44100 ;
sfinfo.pcmbitwidth = 16 ;
sfinfo.format = (typemajor | SF_FORMAT_PCM) ;
sfinfo.channels = 1 ;
sfinfo.samples = 0 ;
/* Create some random data. */
for (k = 0 ; k < BUFFER_LEN ; k++)
data [k] = (rand () % 2000) ;
if (! (file = sf_open_write ("-", &sfinfo)))
{ fprintf (stderr, "sf_open_write failed with error : ") ;
sf_perror (NULL) ;
exit (1) ;
} ;
total = 0 ;
while (total < count)
{ this_write = (count - total > BUFFER_LEN) ? BUFFER_LEN : count - total ;
if ((k = sf_write_short (file, data, this_write)) != this_write)
{ fprintf (stderr, "sf_write_short # %d failed with short write (%d ->%d)\n", count, this_write, k) ;
exit (1) ;
} ;
total += k ;
} ;
sf_close (file) ;
fprintf (stderr, "ok\n") ;
return ;
} /* stdout_test */
void combsplit_ok(void)
{
int i,ch;
int div,num;
char filename[200]={0},tmpfn[200]={0};
char extension[20]={0};
char *extp;
int nch,nchN;
GUI_aboveprogressbar(0,samps_per_frame*num);
div=combsplit_block_size;
num=combsplit_number_of_files;
for (i=0; i<samps_per_frame*N; i++) lyd2[i]=lyd[i];
/* rett kanal : (i/div)%num==kanalnr */
for (ch=0; ch<num; ch++) {
printf("ch: %d\n",ch);
for(nch=0;nch<samps_per_frame;nch++){
nchN=nch*N;
for (i=0; i<N/2; i++) {
if ( ((i/div)%num)==ch) {
lyd[i+i+nchN]=lyd2[i+i+nchN]; lyd[i+i+1+nchN]=lyd2[i+i+1+nchN];
} else {
lyd[i+i+nchN]=0.; lyd[i+i+1+nchN]=0.;
}
}
}
/*og så må vi lagre da*/
extp=strrchr(playfile,'.');
if(extp>strrchr(playfile,'/')) {
strcpy(extension,++extp);
strncpy(tmpfn,playfile,(extp-playfile)-1);
// tmpfn[extp-playfile-1]=0;
sprintf(filename,"%s-%d.%s",tmpfn,ch,extension);
}else{
sprintf(filename,"%s-%d",playfile,ch);
}
/*
out_AFsetup=afNewFileSetup();
afInitChannels(out_AFsetup, AF_DEFAULT_TRACK, samps_per_frame);
afInitRate(out_AFsetup, AF_DEFAULT_TRACK, R);
afInitCompression(out_AFsetup, AF_DEFAULT_TRACK, compression);
afInitFileFormat(out_AFsetup, filefmt);
afInitSampleFormat(out_AFsetup, AF_DEFAULT_TRACK, samp_type, bits_per_samp);
outfile=afOpenFile(filename, "wb", out_AFsetup);
*/
outfile=sf_open_write(filename,&loadstruct.sfinfo);
if (outfile==NULL) {
fprintf(stderr,"Could not open file. \"%s\".\n",filename);
continue;
}
for(nch=0;nch<samps_per_frame;nch++){
GUI_aboveprogressbar(ch*samps_per_frame + nch,samps_per_frame*num);
nchN=nch*N;
rfft(lyd+nchN,N/2,INVERSE);
}
writesound(SaveWaveConsumer,outfile);
// afCloseFile(outfile);
sf_close(outfile);
}
for (i=0; i<samps_per_frame*N; i++) lyd[i]=lyd2[i];
}
void split_real_imag_ok(void)
{
int i,ch;
char filename[200]={0},tmpfn[200]={0};
char extension[20]={0};
char *extp;
int nch,nchN;
GUI_aboveprogressbar(0,samps_per_frame*2);
for (i=0; i<samps_per_frame*N; i++) lyd2[i]=lyd[i];
for (ch=0; ch<2; ch++) {
for(nch=0;nch<samps_per_frame;nch++){
nchN=nch*N;
for (i=0; i<N/2; i++) {
if (ch%2) {
lyd[i+i+nchN]=0.; lyd[i+i+1+nchN]=lyd2[i+i+1+nchN];
} else {
lyd[i+i+nchN]=lyd2[i+i+nchN]; lyd[i+i+1+nchN]=0.;
}
}
}
/*og så må vi lagre da*/
extp=strrchr(playfile,'.');
if(extp>strrchr(playfile,'/')) {
strcpy(extension,++extp);
strncpy(tmpfn,playfile,(extp-playfile)-1);
sprintf(filename,"%s-%d.%s",tmpfn,ch,extension);
} else
sprintf(filename,"%s-%d",playfile,ch);
/*
out_AFsetup=afNewFileSetup();
afInitChannels(out_AFsetup, AF_DEFAULT_TRACK, samps_per_frame);
afInitRate(out_AFsetup, AF_DEFAULT_TRACK, R);
afInitCompression(out_AFsetup, AF_DEFAULT_TRACK, compression);
afInitFileFormat(out_AFsetup, filefmt);
afInitSampleFormat(out_AFsetup, AF_DEFAULT_TRACK, samp_type, bits_per_samp);
outfile=afOpenFile(filename, "wb", out_AFsetup);
*/
outfile=sf_open_write(filename,&loadstruct.sfinfo);
if (outfile==NULL) {
fprintf(stderr,"Could not open file \"%s\".\n",filename);
continue;
}
for(nch=0;nch<samps_per_frame;nch++){
GUI_aboveprogressbar(ch*samps_per_frame + nch,samps_per_frame*2);
nchN=nch*N;
rfft(lyd+nchN,N/2,INVERSE);
}
writesound(SaveWaveConsumer,outfile);
sf_close(outfile);
}
for (i=0; i<samps_per_frame*N; i++) lyd[i]=lyd2[i];
}
static
void lossy_comp_test_double (char *str, char *filename, int typemajor, int typeminor, double margin)
{ SNDFILE *file ;
SF_INFO sfinfo ;
int k, m, seekpos ;
unsigned int datalen ;
double *orig, *data ;
printf (" lossy_comp_test_double : %s ... ", str) ;
datalen = BUFFER_SIZE ;
orig = (double*) orig_buffer ;
data = (double*) test_buffer ;
gen_signal (orig_buffer, datalen) ;
sfinfo.samplerate = 11025 ;
sfinfo.samples = 123456789 ; /* Ridiculous value. */
sfinfo.channels = 1 ;
sfinfo.pcmbitwidth = 16 ;
sfinfo.format = (typemajor | typeminor) ;
if (! (file = sf_open_write (filename, &sfinfo)))
{ printf ("sf_open_write failed with error : ") ;
sf_perror (NULL) ;
exit (1) ;
} ;
if ((k = sf_write_double (file, orig, datalen, 0)) != datalen)
{ printf ("sf_write_double failed with double write (%d => %d).\n", datalen, k) ;
exit (1) ;
} ;
sf_close (file) ;
memset (data, 0, datalen * sizeof (double)) ;
memset (&sfinfo, 0, sizeof (sfinfo)) ;
if (! (file = sf_open_read (filename, &sfinfo)))
{ printf ("sf_open_read failed with error : ") ;
sf_perror (NULL) ;
exit (1) ;
} ;
if (sfinfo.format != (typemajor | typeminor))
{ printf ("Returned format incorrect (0x%08X => 0x%08X).\n", (typemajor | typeminor), sfinfo.format) ;
exit (1) ;
} ;
if (sfinfo.samples < datalen)
{ printf ("Too few samples in file. (%d should be a little more than %d)\n", datalen, sfinfo.samples) ;
exit (1) ;
} ;
if (sfinfo.samples > (datalen + datalen/2))
{ printf ("Too many samples in file. (%d should be a little more than %d)\n", datalen, sfinfo.samples) ;
exit (1) ;
} ;
if (sfinfo.channels != 1)
{ printf ("Incorrect number of channels in file.\n") ;
exit (1) ;
} ;
if (sfinfo.pcmbitwidth != 16)
{ printf ("Incorrect bit width (%d).\n", sfinfo.pcmbitwidth) ;
exit (1) ;
} ;
if ((k = sf_read_double (file, data, datalen, 0)) != datalen)
{ printf ("double read (%d).\n", k) ;
exit (1) ;
} ;
for (k = 0 ; k < datalen ; k++)
if (error_function (data [k], orig [k], margin))
{ printf ("Incorrect sample (A #%d : %d should be %d).\n", k, (int) data [k], (int) orig [k]) ;
exit (1) ;
} ;
if ((k = sf_read_double (file, data, datalen, 0)) != sfinfo.samples - datalen)
{ printf ("Incorrect read length (%d should be %d).\n", sfinfo.samples - datalen, k) ;
exit (1) ;
} ;
for (k = 0 ; k < sfinfo.samples - datalen ; k++)
if (abs ((int) data [k]) > decay_response (k))
{ printf ("Incorrect sample (B #%d : abs (%d) should be < %d).\n", datalen + k, (int) data [k], decay_response (k)) ;
exit (1) ;
} ;
/* Now test sf_seek function. */
if ((k = sf_seek (file, 0, SEEK_SET)) != 0)
{ printf ("Seek to start of file failed (%d).\n", k) ;
exit (1) ;
} ;
for (m = 0 ; m < 3 ; m++)
{ if ((k = sf_read_double (file, data, datalen/7, 0)) != datalen / 7)
{ printf ("Incorrect read length (%d => %d).\n", datalen / 7, k) ;
exit (1) ;
} ;
for (k = 0 ; k < datalen/7 ; k++)
if (error_function (data [k], orig [k + m * (datalen / 7)], margin))
{ printf ("Incorrect sample (C #%d : %d => %d).\n", k + m * (datalen / 7), (int) orig [k + m * (datalen / 7)], (int) data [k]) ;
for (m = 0 ; m < 10 ; m++)
printf ("%d ", (int) data [k]) ;
printf ("\n") ;
exit (1) ;
} ;
} ;
/* Now test sf_seek function. */
seekpos = BUFFER_SIZE / 10 ;
/* Check seek from start of file. */
if ((k = sf_seek (file, seekpos, SEEK_SET)) != seekpos)
{ printf ("Seek to start of file + %d failed (%d).\n", seekpos, k) ;
exit (1) ;
} ;
if ((k = sf_read_double (file, data, 1, 0)) != 1)
{ printf ("sf_read_double (file, data, 1) returned %d.\n", k) ;
exit (1) ;
} ;
if (error_function (data [0], orig [seekpos], margin))
{ printf ("sf_seek (SEEK_SET) followed by sf_read_double failed (%d, %d).\n", (int) orig [1], (int) data [0]) ;
exit (1) ;
} ;
seekpos += BUFFER_SIZE / 5 ;
k = sf_seek (file, BUFFER_SIZE / 5, SEEK_CUR) ;
sf_read_double (file, data, 1, 0) ;
if (error_function (data [0], orig [seekpos], margin) || k != seekpos + 1)
{ printf ("sf_seek (SEEK_CUR) followed by sf_read_double failed (%d, %d) (%d, %d).\n", (int) data [0], (int) orig [seekpos], k, seekpos) ;
exit (1) ;
} ;
seekpos -= 20 ;
/* Check seek backward from current position. */
k = sf_seek (file, -20, SEEK_CUR) ;
sf_read_double (file, data, 1, 0) ;
if (error_function (data [0], orig [seekpos], margin) || k != seekpos + 2)
{ printf ("sf_seek (SEEK_CUR) followed by sf_read_double failed (%d, %d) (%d, %d).\n", (int) data [0], (int) orig [seekpos], k, seekpos) ;
exit (1) ;
} ;
/* Check that read past end of file returns number of items. */
sf_seek (file, (int) datalen, SEEK_SET) ;
if ((k = sf_read_double (file, data, datalen, 0)) != sfinfo.samples - datalen)
{ printf ("Return value from sf_read_double past end of file incorrect (%d).\n", k) ;
exit (1) ;
} ;
/* Check seek backward from end. */
if ((k = sf_seek (file, 5 - (int) sfinfo.samples, SEEK_END)) != 5)
{ printf ("sf_seek (SEEK_END) returned %d instead of %d.\n", k, 5) ;
exit (1) ;
} ;
sf_read_double (file, data, 1, 0) ;
if (error_function (data [0], orig [5], margin))
{ printf ("sf_seek (SEEK_END) followed by sf_read_double failed (%d, %d).\n", (int) data [0], (int) orig [5]) ;
exit (1) ;
} ;
sf_close (file) ;
printf ("ok\n") ;
} /* lossy_comp_test_double */
bool ExportPCM(AudacityProject *project,
bool stereo, wxString fName,
bool selectionOnly, double t0, double t1)
{
double rate = project->GetRate();
wxWindow *parent = project;
TrackList *tracks = project->GetTracks();
int format = ReadExportFormatPref();
int formatBits = ReadExportFormatBitsPref();
wxString formatStr;
SF_INFO info;
SNDFILE *sf;
int err;
formatStr = sf_header_name(format & SF_FORMAT_TYPEMASK);
// Use libsndfile to export file
info.samplerate = (unsigned int)(rate + 0.5);
info.samples = (unsigned int)((t1 - t0)*rate + 0.5);
info.channels = stereo? 2: 1;
info.pcmbitwidth = formatBits;
info.format = format;
info.sections = 1;
info.seekable = 0;
// If we can't export exactly the format they requested,
// try the default format for that header type, and try
// 16-bit samples.
if (!sf_format_check(&info))
info.format = (info.format & SF_FORMAT_TYPEMASK);
if (!sf_format_check(&info))
info.pcmbitwidth = 16;
if (!sf_format_check(&info)) {
wxMessageBox(_("Cannot export audio in this format."));
return false;
}
sf = sf_open_write((const char *)fName, &info);
if (!sf) {
wxMessageBox(wxString::Format(_("Cannot export audio to %s"),
(const char *)fName));
return false;
}
double timeStep = 10.0; // write in blocks of 10 secs
wxProgressDialog *progress = NULL;
wxYield();
wxStartTimer();
wxBusyCursor busy;
bool cancelling = false;
double t = t0;
while (t < t1 && !cancelling) {
double deltat = timeStep;
if (t + deltat > t1)
deltat = t1 - t;
sampleCount numSamples = int (deltat * rate + 0.5);
Mixer *mixer = new Mixer(stereo ? 2 : 1, numSamples, true, rate);
wxASSERT(mixer);
mixer->Clear();
TrackListIterator iter(tracks);
VTrack *tr = iter.First();
while (tr) {
if (tr->GetKind() == VTrack::Wave) {
if (tr->GetSelected() || !selectionOnly) {
if (tr->GetChannel() == VTrack::MonoChannel)
mixer->MixMono((WaveTrack *) tr, t, t + deltat);
if (tr->GetChannel() == VTrack::LeftChannel)
mixer->MixLeft((WaveTrack *) tr, t, t + deltat);
if (tr->GetChannel() == VTrack::RightChannel)
mixer->MixRight((WaveTrack *) tr, t, t + deltat);
}
}
tr = iter.Next();
}
sampleType *mixed = mixer->GetBuffer();
sf_writef_short(sf, mixed, numSamples);
t += deltat;
if (!progress && wxGetElapsedTime(false) > 500) {
wxString message;
if (selectionOnly)
message =
wxString::
Format(_("Exporting the selected audio as a %s file"),
(const char *) formatStr);
else
message =
wxString::
Format(_("Exporting the entire project as a %s file"),
(const char *) formatStr);
progress =
new wxProgressDialog(_("Export"),
message,
1000,
parent,
wxPD_CAN_ABORT |
wxPD_REMAINING_TIME | wxPD_AUTO_HIDE);
}
if (progress) {
cancelling =
!progress->Update(int (((t - t0) * 1000) / (t1 - t0) + 0.5));
}
delete mixer;
}
err = sf_close(sf);
if (err) {
char buffer[1000];
sf_error_str(sf, buffer, 1000);
wxMessageBox(wxString::Format
(_("Error (file may not have been written): %s"),
buffer));
}
#ifdef __WXMAC__
FSSpec spec;
wxMacFilename2FSSpec(fName, &spec);
FInfo finfo;
if (FSpGetFInfo(&spec, &finfo) == noErr) {
finfo.fdType = sf_header_mactype(format & SF_FORMAT_TYPEMASK);
finfo.fdCreator = AUDACITY_CREATOR;
FSpSetFInfo(&spec, &finfo);
}
#endif
if (progress)
delete progress;
return true;
}
