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gsmring.c

/* (c) 2001-2004 by Marcin Wiacek */
/* Based on some work from Ralf Thelen (7110 ringtones) and others */
/* Based on some work (RTTL and SM) from Gnokii (www.gnokii.org)
 * (C) 1999-2000 Hugh Blemings & Pavel Janik ml. (C) 2001-2004 Pawel Kot
 * GNU GPL version 2 or later
 */
/* Due to a problem in the source code management, the names of some of
 * the authors have unfortunately been lost. We do not mean to belittle
 * their efforts and hope they will contact us to see their names
 * properly added to the Copyright notice above.
 * Having published their contributions under the terms of the GNU
 * General Public License (GPL) [version 2], the Copyright of these
 * authors will remain respected by adhering to the license they chose
 * to publish their code under.
 */

#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#include <sys/stat.h>
#ifdef WIN32
#  include <windows.h>
#endif

#include "../gsmcomon.h"
#include "../misc/coding/coding.h"
#include "../gsmstate.h"
#include "gsmring.h"
#include "sms/gsmsms.h"

int GSM_RingNoteGetFrequency(GSM_RingNote Note)
{
      double freq=0;

      /* Values according to the software from http://iki.fi/too/sw/xring/
       * generated with:
       * perl -e 'print int(4400 * (2 **($_/12)) + .5)/10, "\n" for(3..14)'
       */
      switch (Note.Note) {
            case Note_C  : freq = 523.3;                    break;
            case Note_Cis: freq = 554.4;                    break;
            case Note_D  : freq = 587.3;                    break;
            case Note_Dis: freq = 622.3;                    break;
            case Note_E  : freq = 659.3;                    break;
            case Note_F  : freq = 698.5;                    break;
            case Note_Fis: freq = 740;                      break;
            case Note_G  : freq = 784;                      break;
            case Note_Gis: freq = 830.6;                    break;
            case Note_A  : freq = 880;                      break;
            case Note_Ais: freq = 932.3;                    break;
            case Note_H  : freq = 987.8;                    break;
            case Note_Pause:                          break;
      }
      switch (Note.Scale) {
            case Scale_440 : freq = freq / 2;               break;
            case Scale_880 :                          break;
            case Scale_1760: freq = freq * 2;               break;
            case Scale_3520: freq = freq * 4;               break;
            default            :                            break;
      }
      return (int)freq;
}

int GSM_RingNoteGetFullDuration(GSM_RingNote Note)
{
      int duration = 1;

      switch (Note.Duration) {
            case Duration_Full : duration = 128;                  break;
            case Duration_1_2  : duration = 64;             break;
            case Duration_1_4  : duration = 32;             break;
            case Duration_1_8  : duration = 16;             break;
            case Duration_1_16 : duration = 8;              break;
            case Duration_1_32 : duration = 4;              break;
      }
      switch (Note.DurationSpec) {
            case NoSpecialDuration  :                       break;
            case DottedNote         : duration = duration * 3/2;  break;
            case DoubleDottedNote   : duration = duration * 9/4;  break;
            case Length_2_3         : duration = duration * 2/3;  break;
      }
      return duration;
}

#ifndef PI
#  define PI 3.141592654
#endif

#define WAV_SAMPLE_RATE 44100

GSM_Error savewav(FILE *file, GSM_Ringtone *ringtone)
{
      unsigned char     WAV_Header[] = {
                  'R','I','F','F',
                  0x00,0x00,0x00,0x00,    /* Length */
                  'W','A','V','E'};
      unsigned char     FMT_Header[] = {'f','m','t',' ',
                  0x10,0x00,0x00,0x00,0x01,0x00,0x01,0x00,0x44,0xac,
                  0x00,0x00,0x88,0x58,0x01,0x00,0x02,0x00,0x10,0x00};
      unsigned char     DATA_Header[] = {
                  'd','a','t','a',
                  0x00,0x00,0x00,0x00};   /* Length */
      short       DATA_Buffer[60000];
      long        wavfilesize;
      GSM_RingNote      *Note;
      long        i,j,length=0;
      double            phase=0,phase_step;

      fwrite(&WAV_Header,     1, sizeof(WAV_Header),  file);
      fwrite(&FMT_Header,     1, sizeof(FMT_Header),  file);
      fwrite(&DATA_Header,    1, sizeof(DATA_Header), file);

      for (i=0;i<ringtone->NoteTone.NrCommands;i++) {
            if (ringtone->NoteTone.Commands[i].Type == RING_Note) {
                  Note        = &ringtone->NoteTone.Commands[i].Note;
                  phase_step  = GSM_RingNoteGetFrequency(*Note)*WAV_SAMPLE_RATE*1.5;
                  for (j=0;j<((long)(GSM_RingNoteGetFullDuration(*Note)*WAV_SAMPLE_RATE/70));j++) {
                        DATA_Buffer[j]    = ((int)(sin(phase*PI)*50000));
                              phase       = phase + phase_step;
                        length++;
                  }
                  fwrite(&DATA_Buffer,sizeof(short),j,file);
            }
      }

      wavfilesize       = sizeof(WAV_Header) + sizeof(FMT_Header) + sizeof(DATA_Header) + length*2;
      WAV_Header[4]     = ((unsigned char)wavfilesize % 256);
      WAV_Header[5]     = ((unsigned char)wavfilesize / 256);
      WAV_Header[6]     = ((unsigned char)wavfilesize / (256*256));
      WAV_Header[7]     = ((unsigned char)wavfilesize / (256*256*256));
      wavfilesize       = wavfilesize - 54;
      DATA_Header[4]    = ((unsigned char)wavfilesize % 256);
      DATA_Header[5]    = ((unsigned char)wavfilesize / 256);
      DATA_Header[6]    = ((unsigned char)wavfilesize / (256*256));
      DATA_Header[7]    = ((unsigned char)wavfilesize / (256*256*256));

      fseek( file, 0, SEEK_SET);
      fwrite(&WAV_Header,     1, sizeof(WAV_Header),  file);
      fwrite(&FMT_Header,     1, sizeof(FMT_Header),  file);
      fwrite(&DATA_Header,    1, sizeof(DATA_Header), file);

      return ERR_NONE;
}

static GSM_Error savebin(FILE *file, GSM_Ringtone *ringtone)
{
      char nullchar=0x00;

      fwrite(&nullchar,1,1,file);
      fwrite(&nullchar,1,1,file);
      fprintf(file,"\x0C\x01\x2C");
      fprintf(file,"%s",DecodeUnicodeString(ringtone->Name));
      fwrite(&nullchar,1,1,file);
      fwrite(&nullchar,1,1,file);
      fwrite(ringtone->NokiaBinary.Frame,1,ringtone->NokiaBinary.Length,file);
      return ERR_NONE;
}

static GSM_Error savepuremidi(FILE *file, GSM_Ringtone *ringtone)
{
      fwrite(ringtone->NokiaBinary.Frame,1,ringtone->NokiaBinary.Length,file);
      return ERR_NONE;
}

static GSM_Error savemmf(FILE *file, GSM_Ringtone *ringtone)
{
      fwrite(ringtone->NokiaBinary.Frame,1,ringtone->NokiaBinary.Length,file);
      return ERR_NONE;
}

GSM_Error saverttl(FILE *file, GSM_Ringtone *ringtone)
{
      GSM_RingNoteScale DefNoteScale;
      GSM_RingNoteDuration    DefNoteDuration;

      GSM_RingNoteStyle DefNoteStyle=0;
      int               DefNoteTempo=0;

      bool              started = false, firstcomma = true;
      GSM_RingNote            *Note;

      unsigned char           buffer[15];
      int               i,j,k=0;

      /* Saves ringtone name */
      fprintf(file,"%s:",DecodeUnicodeString(ringtone->Name));

      /* Find the most frequently used duration */
      for (i=0;i<6;i++) buffer[i]=0;
      for (i=0;i<ringtone->NoteTone.NrCommands;i++) {
            if (ringtone->NoteTone.Commands[i].Type == RING_Note) {
                  Note = &ringtone->NoteTone.Commands[i].Note;
                  /* some durations need 2 bytes in file, some 1 */
                  if (Note->Duration >= Duration_Full && Note->Duration <= Duration_1_8) {
                        buffer[Note->Duration/32]++;
                  }
                  if (Note->Duration >= Duration_1_16 && Note->Duration <= Duration_1_32) {
                        buffer[Note->Duration/32]+=2;
                  }
            }
      }
      /* Now find the most frequently used */
      j=0;
      for (i=0;i<6;i++) {
            if (buffer[i]>j) {
                  k=i;
                  j=buffer[i];
            }
      }
      /* Finally convert the default duration */
      DefNoteDuration = k * 32;
      dbgprintf("DefNoteDuration=%d\n", DefNoteDuration);
      switch (DefNoteDuration) {
            case Duration_Full:fprintf(file,"d=1"); break;
            case Duration_1_2 :fprintf(file,"d=2"); break;
            case Duration_1_4 :fprintf(file,"d=4"); break;
            case Duration_1_8 :fprintf(file,"d=8"); break;
            case Duration_1_16:fprintf(file,"d=16");break;
            case Duration_1_32:fprintf(file,"d=32");break;
      }

      /* Find the most frequently used scale */
      for (i=0;i<9;i++) buffer[i]=0;
      for (i=0;i<ringtone->NoteTone.NrCommands;i++) {
            if (ringtone->NoteTone.Commands[i].Type == RING_Note) {
                  Note = &ringtone->NoteTone.Commands[i].Note;
                  if (Note->Note!=Note_Pause &&
                      Note->Scale >= Scale_55 && Note->Scale <= Scale_14080) {
                        buffer[Note->Scale - 1]++;
                  }
            }
      }
      j=0;
      for (i=0;i<9;i++) {
            if (buffer[i]>j) {
                  k = i;
                  j=buffer[i];
            }
      }
      DefNoteScale = k + 1;
      /* Save the default scale */
      fprintf(file,",o=%i,",DefNoteScale);
      dbgprintf("DefNoteScale=%d\n", DefNoteScale);

      for (i=0;i<ringtone->NoteTone.NrCommands;i++) {
            if (ringtone->NoteTone.Commands[i].Type != RING_Note) continue;

            Note = &ringtone->NoteTone.Commands[i].Note;

            /* Trick from PPM Edit */
            if (Note->DurationSpec == DoubleDottedNote) {
                  switch (Note->Duration) {
                        case Duration_Full:Note->Duration = Duration_Full;break;
                        case Duration_1_2 :Note->Duration = Duration_Full;break;
                        case Duration_1_4 :Note->Duration = Duration_1_2; break;
                        case Duration_1_8 :Note->Duration = Duration_1_4; break;
                        case Duration_1_16:Note->Duration = Duration_1_8; break;
                        case Duration_1_32:Note->Duration = Duration_1_16;break;
                  }
                  Note->DurationSpec = NoSpecialDuration;
            }

            if (!started) {
                  DefNoteTempo=Note->Tempo;
                  DefNoteStyle=Note->Style;
                  switch (Note->Style) {
                        case StaccatoStyle      : fprintf(file,"s=S,"); break;
                        case NaturalStyle       : fprintf(file,"s=N,"); break;
                        case ContinuousStyle    :                 break;
                  }
                  /* Save the default tempo */
                  fprintf(file,"b=%i:",DefNoteTempo);
                  dbgprintf("DefNoteTempo=%d\n", DefNoteTempo);
                  started     = true;
                  firstcomma  = true;
            }

            if (!started) continue;

            if (Note->Style!=DefNoteStyle) {
                  /* And a separator */
                  if (!firstcomma) fprintf(file,",");
                  firstcomma = false;
                  DefNoteStyle=Note->Style;
                  switch (Note->Style) {
                        case StaccatoStyle  : fprintf(file,"s=S"); break;
                        case NaturalStyle   : fprintf(file,"s=N"); break;
                        case ContinuousStyle: fprintf(file,"s=C"); break;
                  }
            }
            if (Note->Tempo!=DefNoteTempo) {
                  /* And a separator */
                  if (!firstcomma) fprintf(file,",");
                  firstcomma = false;
                  DefNoteTempo=Note->Tempo;
                  fprintf(file,"b=%i",DefNoteTempo);
            }
            /* This note has a duration different than the default. We must save it */
            if (Note->Duration!=DefNoteDuration) {
                  /* And a separator */
                  if (!firstcomma) fprintf(file,",");
                  firstcomma = false;
                  switch (Note->Duration) {
                        case Duration_Full:fprintf(file,"1"); break;
                        case Duration_1_2 :fprintf(file,"2"); break;
                        case Duration_1_4 :fprintf(file,"4"); break;
                        case Duration_1_8 :fprintf(file,"8"); break;
                        case Duration_1_16:fprintf(file,"16");break;
                        case Duration_1_32:fprintf(file,"32");break;
                  }
            } else {
                  /* And a separator */
                  if (!firstcomma) fprintf(file,",");
                  firstcomma = false;
            }
            /* Now save the actual note */
            switch (Note->Note) {
                  case Note_C  :fprintf(file,"c");    break;
                  case Note_Cis:fprintf(file,"c#");   break;
                  case Note_D  :fprintf(file,"d");    break;
                  case Note_Dis:fprintf(file,"d#");   break;
                  case Note_E  :fprintf(file,"e");    break;
                  case Note_F  :fprintf(file,"f");    break;
                  case Note_Fis:fprintf(file,"f#");   break;
                  case Note_G  :fprintf(file,"g");    break;
                  case Note_Gis:fprintf(file,"g#");   break;
                  case Note_A  :fprintf(file,"a");    break;
                  case Note_Ais:fprintf(file,"a#");   break;
                  case Note_H  :fprintf(file,"h");    break;
                  default      :fprintf(file,"p");    break; /*Pause ?*/
            }
            switch (Note->DurationSpec) {
                  case DottedNote   : fprintf(file,".");    break;
                  default           :                 break;
            }
            if (Note->Note!=Note_Pause && Note->Scale != DefNoteScale) {
                  fprintf(file,"%i",Note->Scale);
            }
      }
      return ERR_NONE;
}

void saveimelody(FILE *file, GSM_Ringtone *ringtone)
{
      char  Buffer[2000];
      int   i=2000;

      GSM_EncodeEMSSound(*ringtone, Buffer, &i, (float)1.2, true);

      fwrite(Buffer, 1, i, file);
}

#ifndef ENABLE_LGPL

static void WriteVarLen(unsigned char* midifile, int* current, long value)
{
      long buffer;

      buffer = value & 0x7f;

      while (value >>= 7) {
            buffer <<= 8;
            buffer |= 0x80;
            buffer += (value & 0x7f);
      }

      while (1) {
            midifile[(*current)++] = (unsigned char)buffer;
            if (buffer & 0x80) {
                  buffer >>= 8;
            } else {
                  break;
            }
      }
}

#define singlepauses

/* FIXME: need adding tempo before each note and scale too ? */
void savemid(FILE* file, GSM_Ringtone *ringtone)
{
      int         pause       = 0, current = 26, duration, i, note=0, length = 20;
      bool        started = false;
      GSM_RingNote      *Note;
      unsigned char midifile[3000] = {
            0x4D, 0x54, 0x68, 0x64, // MThd
            0x00, 0x00, 0x00, 0x06, // chunk length
            0x00, 0x00,             // format 0
            0x00, 0x01,             // one track
            0x00, 0x20,             // 32 per quarter note
            0x4D, 0x54, 0x72, 0x6B, // MTrk
            0x00, 0x00, 0x00, 0x00, // chunk length
            0x00, 0xFF, 0x51, 0x03, // tempo meta event
            0x00, 0x00, 0x00};      // 3 bytes for us for a quarter note

      for (i = 0; i < ringtone->NoteTone.NrCommands; i++) {
            if (ringtone->NoteTone.Commands[i].Type == RING_Note) {
                  Note = &ringtone->NoteTone.Commands[i].Note;
                  if (!started) {
                        /* readmid does not read pauses at the beginning */
                        if (Note->Note != Note_Pause) {
                              /* FIXME: we need add tempo before each note or so... */
                              long duration=60000000/Note->Tempo;

                              midifile[current++] = (unsigned char)(duration >> 16);
                              midifile[current++] = (unsigned char)(duration >> 8);
                              midifile[current++] = (unsigned char)duration;

                              started = true;
                        }
                  }
                  if (!started) continue;
                  duration = GSM_RingNoteGetFullDuration(*Note);
                  if (Note->Note == Note_Pause) {
                        pause += duration;
#ifdef singlepauses
                        WriteVarLen(midifile,&current,pause);
                        pause=0;
                        midifile[current++]=0x00;   // pause
                        midifile[current++]=0x00;
#endif
                  } else {
                        if (Note->Note >= Note_C && Note->Note <= Note_H) {
                              note = Note->Note/16 + 12 * Note->Scale - 1;
                        }

                        WriteVarLen(midifile,&current,pause);
                        pause=0;
                        midifile[current++]=0x90;   // note on
                        midifile[current++]=note;
                        midifile[current++]=0x64;   // forte

                        WriteVarLen(midifile,&current,duration);
                        midifile[current++]=0x80;   // note off
                        midifile[current++]=note;
                        midifile[current++]=0x64;
                  }
            }
      }
      if (pause) {
            WriteVarLen(midifile,&current,pause);
            midifile[current++]=0x00;     // pause
            midifile[current++]=0x00;     //
      }
      midifile[current++] = 0x00;
      midifile[current++] = 0xFF;               // track end
      midifile[current++] = 0x2F;
      midifile[current++] = 0x00;
      midifile[length++] = (current-22) >> 8;
      midifile[length++] = current-22;

      fwrite(midifile,1,current,file);
}

#endif

void saveott(FILE *file, GSM_Ringtone *ringtone)
{
      char  Buffer[2000];
      int   i=2000;

      GSM_EncodeNokiaRTTLRingtone(*ringtone, Buffer, &i);

      fwrite(Buffer, 1, i, file);
}

GSM_Error GSM_SaveRingtoneFile(char *FileName, GSM_Ringtone *ringtone)
{
      FILE *file;

      file = fopen(FileName, "wb");
      if (file == NULL) return ERR_CANTOPENFILE;

      switch (ringtone->Format) {
      case RING_NOTETONE:
            if (strstr(FileName,".ott")) {
                  saveott(file,ringtone);
            } else if (strstr(FileName,".rng")) {
                  saveott(file,ringtone);
#ifndef ENABLE_LGPL
            } else if (strstr(FileName,".mid")) {
                  savemid(file,ringtone);
#endif
            } else if (strstr(FileName,".imy")) {
                  saveimelody(file,ringtone);
            } else if (strstr(FileName,".ime")) {
                  saveimelody(file,ringtone);
            } else if (strstr(FileName,".wav")) {
                  savewav(file,ringtone);
            } else {
                  saverttl(file, ringtone);
            }
            break;
      case RING_NOKIABINARY:
            savebin(file, ringtone);
            break;
      case RING_MIDI:
            savepuremidi(file, ringtone);
            break;
      case RING_MMF:
            savemmf(file, ringtone);
            break;
      }

      fclose(file);

      return ERR_NONE;
}

static GSM_Error loadrttl(FILE *file, GSM_Ringtone *ringtone)
{
      GSM_RingNoteScale DefNoteScale      = Scale_880;
      GSM_RingNoteDuration    DefNoteDuration   = Duration_1_4;
      GSM_RingNoteStyle DefNoteStyle      = NaturalStyle;
      int               DefNoteTempo      = 63, i=0;

      unsigned char           buffer[2000],Name[100];
      GSM_RingNote            *Note;

      fread(buffer, 2000, 1, file);

      ringtone->NoteTone.NrCommands = 0;

      /* -------------- name ---------------- */
      while (buffer[i] != ':') {
            if (buffer[i] == 0x00) return ERR_NONE;
            i++;
      }
      if (i == 0) {
            /* This is for RTTL ringtones without name. */
            EncodeUnicode(ringtone->Name,"Gammu",5);
      } else {
            memcpy(Name,buffer,i);
            Name[i] = 0x00;
            EncodeUnicode(ringtone->Name,Name,strlen(Name));
      }
      i++;

      /* --------- section with default ringtone settings ----------- */
      while(1) {
            switch (buffer[i]) {
            case ':':
                  break;
            case 0x00:
                  return ERR_NONE;
            case 'd': case 'D':
                  switch (atoi(buffer+i+2)) {
                        case  1: DefNoteDuration = Duration_Full; break;
                        case  2: DefNoteDuration = Duration_1_2 ; break;
                        case  4: DefNoteDuration = Duration_1_4 ; break;
                        case  8: DefNoteDuration = Duration_1_8 ; break;
                        case 16: DefNoteDuration = Duration_1_16; break;
                        case 32: DefNoteDuration = Duration_1_32; break;
                  }
                  break;
            case 'o': case 'O':
                  switch (atoi(buffer+i+2)) {
                        case  4: DefNoteScale = Scale_440 ; break;
                        case  5: DefNoteScale = Scale_880 ; break;
                        case  6: DefNoteScale = Scale_1760; break;
                        case  7: DefNoteScale = Scale_3520; break;
                  }
                  break;
            case 'b': case 'B':
                  DefNoteTempo=atoi(buffer+i+2);
                  dbgprintf("Tempo = %i\n",DefNoteTempo);
                  break;
            case 's': case 'S':
                  switch (buffer[i+1]) {
                        case 'C': case 'c': DefNoteStyle=ContinuousStyle;     break;
                        case 'N': case 'n': DefNoteStyle=NaturalStyle;        break;
                        case 'S': case 's': DefNoteStyle=StaccatoStyle;       break;
                  }
                  switch (buffer[i+2]) {
                        case 'C': case 'c': DefNoteStyle=ContinuousStyle;     break;
                        case 'N': case 'n': DefNoteStyle=NaturalStyle;        break;
                        case 'S': case 's': DefNoteStyle=StaccatoStyle;       break;
                  }
                  break;
            }
            while (buffer[i] != ':' && buffer[i] != ',') {
                  if (buffer[i] == 0x00) return ERR_NONE;
                  i++;
            }
            if (buffer[i] == ',') i++;
            if (buffer[i] == ':') break;
      }
      dbgprintf("DefNoteDuration=%d\n", DefNoteDuration);
      dbgprintf("DefNoteScale=%d\n", DefNoteScale);
      i++;

      /* ------------------------- notes ------------------------------ */
      while (buffer[i] != 0x00 && ringtone->NoteTone.NrCommands != MAX_RINGTONE_NOTES) {
            switch(buffer[i]) {
            case 'z': case 'Z':
                  switch (buffer[i+1]) {
                  case 'd':
                        ringtone->NoteTone.Commands[ringtone->NoteTone.NrCommands].Type = RING_DisableLED;
                        ringtone->NoteTone.NrCommands++;
                        break;
                  case 'D':
                        ringtone->NoteTone.Commands[ringtone->NoteTone.NrCommands].Type = RING_EnableLED;
                        ringtone->NoteTone.NrCommands++;
                        break;
                  case 'v':
                        ringtone->NoteTone.Commands[ringtone->NoteTone.NrCommands].Type = RING_DisableVibra;
                        ringtone->NoteTone.NrCommands++;
                        break;
                  case 'V':
                        ringtone->NoteTone.Commands[ringtone->NoteTone.NrCommands].Type = RING_EnableVibra;
                        ringtone->NoteTone.NrCommands++;
                        break;
                  case 'l':
                        ringtone->NoteTone.Commands[ringtone->NoteTone.NrCommands].Type = RING_DisableLight;
                        ringtone->NoteTone.NrCommands++;
                        break;
                  case 'L':
                        ringtone->NoteTone.Commands[ringtone->NoteTone.NrCommands].Type = RING_EnableLight;
                        ringtone->NoteTone.NrCommands++;
                  }
                  break;
            case 'o': case 'O':
                  switch (buffer[i+2]) {
                        case  4: DefNoteScale = Scale_440 ; break;
                        case  5: DefNoteScale = Scale_880 ; break;
                        case  6: DefNoteScale = Scale_1760; break;
                        case  7: DefNoteScale = Scale_3520; break;
                  }
                  break;
            case 's': case 'S':
                  switch (buffer[i+1]) {
                        case 'C': case 'c': DefNoteStyle=ContinuousStyle;     break;
                        case 'N': case 'n': DefNoteStyle=NaturalStyle;        break;
                        case 'S': case 's': DefNoteStyle=StaccatoStyle;       break;
                  }
                  switch (buffer[i+2]) {
                        case 'C': case 'c': DefNoteStyle=ContinuousStyle;     break;
                        case 'N': case 'n': DefNoteStyle=NaturalStyle;        break;
                        case 'S': case 's': DefNoteStyle=StaccatoStyle;       break;
                  }
                  break;
            default:
                  ringtone->NoteTone.Commands[ringtone->NoteTone.NrCommands].Type = RING_Note;
                  Note = &ringtone->NoteTone.Commands[ringtone->NoteTone.NrCommands].Note;
                  Note->Style       = DefNoteStyle;
                  Note->Tempo       = DefNoteTempo;
                  Note->Scale             = DefNoteScale;
                  Note->Duration          = DefNoteDuration;
                  Note->DurationSpec      = NoSpecialDuration;
                  Note->Note        = Note_Pause;

                  /* Duration */
                  switch (atoi(buffer+i)) {
                        case  1: Note->Duration = Duration_Full  ; break;
                        case  2: Note->Duration = Duration_1_2   ; break;
                        case  4: Note->Duration = Duration_1_4   ; break;
                        case  8: Note->Duration = Duration_1_8   ; break;
                        case 16: Note->Duration = Duration_1_16  ; break;
                        case 32: Note->Duration = Duration_1_32    ; break;
                  }
                  /* We skip all numbers from duration specification */
                  while(isdigit(buffer[i])) i++;

                  /* Some files can have special duration here */
                  if (buffer[i]=='.') {
                        Note->DurationSpec = DottedNote;
                        i++;
                  }

                  /* Note */
                  /* B or b is not in specs, but I decided to put it, because
                   * it's in some RTTL files. It's the same to H note */
                  switch (buffer[i]) {
                        case 'A': case 'a': Note->Note = Note_A; break;
                        case 'B': case 'b': Note->Note = Note_H; break;
                        case 'C': case 'c': Note->Note = Note_C; break;
                        case 'D': case 'd': Note->Note = Note_D; break;
                        case 'E': case 'e': Note->Note = Note_E; break;
                        case 'F': case 'f': Note->Note = Note_F; break;
                        case 'G': case 'g': Note->Note = Note_G; break;
                        case 'H': case 'h': Note->Note = Note_H; break;
                  }
                  i++;

                  if (buffer[i]=='#') {
                        switch (Note->Note) {
                              case Note_A : Note->Note = Note_Ais; break;
                              case Note_C : Note->Note = Note_Cis; break;
                              case Note_D : Note->Note = Note_Dis; break;
                              case Note_F : Note->Note = Note_Fis; break;
                              case Note_G : Note->Note = Note_Gis; break;
                              default         :                  break;
                        }
                        i++;
                  }

                  /* Some files can have special duration here */
                  if (buffer[i]=='.') {
                        Note->DurationSpec = DottedNote;
                        i++;
                  }

                  /* Scale */
                  if (Note->Note!=Note_Pause && isdigit(buffer[i])) {
                        switch (atoi(buffer+i)) {
                              case  4: Note->Scale = Scale_440 ; break;
                              case  5: Note->Scale = Scale_880 ; break;
                              case  6: Note->Scale = Scale_1760; break;
                              case  7: Note->Scale = Scale_3520; break;
                        }
                        i++;
                  }

                  ringtone->NoteTone.NrCommands++;
                  break;
            }
            while (buffer[i] != ',') {
                  if (buffer[i] == 0x00) return ERR_NONE;
                  i++;
            }
            if (buffer[i] == ',') i++;
      }

      return ERR_NONE;
}

static GSM_Error loadott(FILE *file, GSM_Ringtone *ringtone)
{
      char  Buffer[2000];
      int   i;

      i=fread(Buffer, 1, 2000, file);

      return GSM_DecodeNokiaRTTLRingtone(ringtone, Buffer, i);
}

static GSM_Error loadcommunicator(FILE *file, GSM_Ringtone *ringtone)
{
      char  Buffer[4000];
      int   i,j;

      i=fread(Buffer, 1, 4000, file);

      i=0;j=0;
      while (true) {
            if (Buffer[j]  ==0x00 && Buffer[j+1]==0x02 &&
                Buffer[j+2]==0x4a && Buffer[j+3]==0x3a) break;
            if (j==i-4) return ERR_UNKNOWN;
            j++;
      }
      j++;

      return GSM_DecodeNokiaRTTLRingtone(ringtone, Buffer+j, i-j);
}

static GSM_Error loadbin(FILE *file, GSM_Ringtone *ringtone)
{
      int         i;
      unsigned char     buffer[2000];

      dbgprintf("loading binary\n");
      ringtone->NokiaBinary.Length=fread(buffer, 1, 500, file);
      i=5;
      while (buffer[i]!=0x00) i++;
      EncodeUnicode(ringtone->Name,buffer+5,i-5);
      while (buffer[i]!=0x02 && buffer[i+1]!=0xFC && buffer[i+2]!=0x09) {
            i++;
      }
      ringtone->NokiaBinary.Length=ringtone->NokiaBinary.Length-i;
      memcpy(ringtone->NokiaBinary.Frame,buffer+i,ringtone->NokiaBinary.Length);
      dbgprintf("Length %i name \"%s\"\n",ringtone->NokiaBinary.Length,DecodeUnicodeString(ringtone->Name));
      return ERR_NONE;
}

static GSM_Error loadpuremidi(FILE *file, GSM_Ringtone *ringtone)
{
      unsigned char buffer[30000];

      dbgprintf("loading midi\n");
      EncodeUnicode(ringtone->Name,"MIDI",4);
      ringtone->NokiaBinary.Length=fread(buffer, 1, 30000, file);
      memcpy(ringtone->NokiaBinary.Frame,buffer,ringtone->NokiaBinary.Length);
      dbgprintf("Length %i name \"%s\"\n",ringtone->NokiaBinary.Length,DecodeUnicodeString(ringtone->Name));
      return ERR_NONE;
}

static GSM_Error loadmmf(FILE *file, GSM_Ringtone *ringtone)
{
      struct      stat st;
      char  *buffer;
      int   length;

      dbgprintf("loading smaf file\n");
      fstat(fileno(file), &st);
      ringtone->BinaryTone.Length = length = st.st_size;
      ringtone->BinaryTone.Buffer = buffer = malloc(length);
      if (buffer == NULL)
            return ERR_MOREMEMORY;
      fread(buffer, 1, length, file);

      dbgprintf("Length %i name \"%s\"\n", length,
            DecodeUnicodeString(ringtone->Name));

      return ERR_NONE;
}

static GSM_Error loadre(FILE *file, GSM_Ringtone *ringtone)
{
      unsigned char buffer[2000];

      ringtone->NokiaBinary.Length=fread(buffer, 1, 500, file);

      if (buffer[18]==0x00 && buffer[21]!=0x02) {
            /* DCT3, Unicode subformat, 62xx & 7110 */
            CopyUnicodeString(ringtone->Name,buffer+18);
            ringtone->NokiaBinary.Length = ringtone->NokiaBinary.Length - (21+UnicodeLength(ringtone->Name)*2);
            memcpy(ringtone->NokiaBinary.Frame,buffer+21+UnicodeLength(ringtone->Name)*2,ringtone->NokiaBinary.Length);
      } else {
            /* DCT3, normal subformat, 32xx/33xx/51xx/5210/5510/61xx/8xxx */
            EncodeUnicode(ringtone->Name,buffer+17,buffer[16]);
            ringtone->NokiaBinary.Length = ringtone->NokiaBinary.Length - (19+UnicodeLength(ringtone->Name));
            memcpy(ringtone->NokiaBinary.Frame,buffer+19+UnicodeLength(ringtone->Name),ringtone->NokiaBinary.Length);
      }
      dbgprintf("Name \"%s\"\n",DecodeUnicodeString(ringtone->Name));
      return ERR_NONE;
}

GSM_Error GSM_ReadRingtoneFile(char *FileName, GSM_Ringtone *ringtone)
{
      FILE        *file;
      unsigned char     buffer[300];
      GSM_Error   error = ERR_UNKNOWN;

      dbgprintf("Loading ringtone %s\n",FileName);
      file = fopen(FileName, "rb");
      if (file == NULL) return ERR_CANTOPENFILE;

      /* Read the header of the file. */
      fread(buffer, 1, 4, file);
      if (ringtone->Format == 0x00) {
            ringtone->Format = RING_NOTETONE;
            if (buffer[0]==0x00 && buffer[1]==0x00 &&
                buffer[2]==0x0C && buffer[3]==0x01) {
                  ringtone->Format = RING_NOKIABINARY;
            }
            if (buffer[0]==0x00 && buffer[1]==0x00 &&
                buffer[2]==0x00) {
                  ringtone->Format = RING_NOKIABINARY;
            }
            if (buffer[0]==0x4D && buffer[1]==0x54 &&
                buffer[2]==0x68 && buffer[3]==0x64) {
                  ringtone->Format = RING_MIDI;
            }
            if (buffer[0]==0x4D && buffer[1]==0x4D &&
                buffer[2]==0x4D && buffer[3]==0x44) {
                  ringtone->Format = RING_MMF;
            }
      }
      rewind(file);
      switch (ringtone->Format) {
      case RING_NOTETONE:
            if (buffer[0]==0x02 && buffer[1]==0x4A) {
                  error=loadott(file,ringtone);
            } else if (buffer[0]==0xC7 && buffer[1]==0x45) {
                  error=loadcommunicator(file,ringtone);
            } else {
                  error=loadrttl(file,ringtone);
            }
            ringtone->NoteTone.AllNotesScale=false;
            break;
      case RING_NOKIABINARY:
            if (buffer[0]==0x00 && buffer[1]==0x00 &&
                buffer[2]==0x0C && buffer[3]==0x01) {
                  error=loadbin(file,ringtone);
            }
            if (buffer[0]==0x00 && buffer[1]==0x00 &&
                buffer[2]==0x00) {
                  error=loadre(file,ringtone);
            }
            break;
      case RING_MIDI:
            EncodeUnicode(ringtone->Name,FileName,strlen(FileName));
            error = loadpuremidi(file,ringtone);
            break;
      case RING_MMF:
            EncodeUnicode(ringtone->Name,FileName,strlen(FileName));
            error = loadmmf(file,ringtone);
            break;
      }
      fclose(file);
      return(error);
}

/* -------------------------- required with Nokia & RTTL ------------------- */

/* Beats per Minute like written in Smart Messaging */
static int SM_BeatsPerMinute[] = {
      25,   28,   31,   35,   40,   45,   50,   56,   63,   70,
      80,   90,   100,  112,  125,  140,  160,  180,  200,  225,
      250,  285,  320,  355,  400,  450,  500,  565,  635,  715,
      800,  900
};

int GSM_RTTLGetTempo(int Beats)
{
      int i=0;

      while (Beats > SM_BeatsPerMinute[i] && SM_BeatsPerMinute[i] != 900) i++;

      return i<<3;
}

/* This function packs the ringtone from the structure "ringtone" to
   "package", where maxlength means length of package.
   Function returns number of packed notes and change maxlength to
   number of used chars in "package" */
unsigned char GSM_EncodeNokiaRTTLRingtone(GSM_Ringtone ringtone, unsigned char *package, int *maxlength)
{
      unsigned char           CommandLength     = 0x02;
      unsigned char           Loop        = 0x15;     /* Infinite */

      unsigned char           Buffer[200];
      int               StartBit=0, OldStartBit;
      int               StartBitHowManyCommands;
      int               HowManyCommands   = 0;  /* How many instructions packed */
      int               HowManyNotes      = 0;
      int               i,j;
      bool              started;
      GSM_RingNote            *Note;

      GSM_RingNoteScale       DefScale = 255;
      GSM_RingNoteStyle       DefStyle = 255;
      int               DefTempo = 255;

      AddBufferByte(package, &StartBit, CommandLength, 8);
      AddBufferByte(package, &StartBit, SM_Command_RingingToneProgramming, 7);

      /* According to specification we need have next part octet-aligned */
      BufferAlign(package, &StartBit);

      AddBufferByte(package, &StartBit, SM_Command_Sound, 7);
      AddBufferByte(package, &StartBit, SM_Song_BasicSongType, 3);

      /* Packing the name of the tune. */
      EncodeUnicodeSpecialNOKIAChars(Buffer, ringtone.Name, UnicodeLength(ringtone.Name));
      AddBufferByte(package, &StartBit, ((unsigned char)(UnicodeLength(Buffer)<<4)), 4);
      AddBuffer(package, &StartBit, DecodeUnicodeString(Buffer), 8*UnicodeLength(Buffer));

      /* Packing info about song pattern */
      AddBufferByte(package, &StartBit, 0x01, 8); //one pattern
      AddBufferByte(package, &StartBit, SM_InstructionID_PatternHeaderId, 3);
      AddBufferByte(package, &StartBit, SM_PatternID_A_part, 2);
      AddBufferByte(package, &StartBit, ((unsigned char)(Loop<<4)), 4);

      /* Later here will be HowManyCommands */
      StartBitHowManyCommands=StartBit;
      StartBit = StartBit + 8;

      started = false;
      for (i=0; i<ringtone.NoteTone.NrCommands; i++) {
            if (ringtone.NoteTone.Commands[i].Type != RING_Note) {
                  HowManyNotes++;
                  continue;
            }
            Note = &ringtone.NoteTone.Commands[i].Note;
            if (!started) {
                  /* First note can't be Pause - it makes problems
                   * for example with PC Composer
                   */
                  if (Note->Note != Note_Pause) started = true;
            }
            if (!started) {
                  HowManyNotes++;
                  continue;
            }
            OldStartBit = StartBit;
            /* we don't write Scale & Style info before "Pause" note - it saves place */
            if (Note->Note!=Note_Pause) {
                  if (DefScale != Note->Scale || ringtone.NoteTone.AllNotesScale) {
                        j = StartBit+5+8;
                        BufferAlignNumber(&j);
                        if ((j/8)>(*maxlength)) {
                              StartBit = OldStartBit;
                              break;
                        }
                        DefScale = Note->Scale;
                        AddBufferByte(package, &StartBit, SM_InstructionID_ScaleInstructionId, 3);
                        AddBufferByte(package, &StartBit, ((unsigned char)((DefScale-4)<<6)), 2);
                        HowManyCommands++;
                  }
                  if (DefStyle != Note->Style) {
                        j = StartBit+5+8;
                        BufferAlignNumber(&j);
                        if ((j/8)>(*maxlength)) {
                              StartBit = OldStartBit;
                              break;
                        }
                        DefStyle = Note->Style;
                        AddBufferByte(package, &StartBit, SM_InstructionID_StyleInstructionId, 3);
                        AddBufferByte(package, &StartBit, ((unsigned char)DefStyle), 2);
                        HowManyCommands++;
                  }
            }
            /* Beats per minute/tempo of the tune */
            if (DefTempo != GSM_RTTLGetTempo(Note->Tempo)) {
                  j = StartBit+8+8;
                  BufferAlignNumber(&j);
                  if ((j/8)>(*maxlength)) {
                        StartBit = OldStartBit;
                        break;
                  }
                  DefTempo=GSM_RTTLGetTempo(Note->Tempo);
                  /* Adding beats per minute (tempo) of the tune */
                  AddBufferByte(package, &StartBit, SM_InstructionID_TempoInstructionId, 3);
                  AddBufferByte(package, &StartBit, ((unsigned char)DefTempo), 5);
                  HowManyCommands++;
            }
            j = StartBit+12+8;
            BufferAlignNumber(&j);
            if ((j/8)>(*maxlength)) {
                  StartBit = OldStartBit;
                  break;
            }
            /* Note */
            AddBufferByte(package, &StartBit, SM_InstructionID_NoteInstructionId, 3);
            AddBufferByte(package, &StartBit, ((unsigned char)Note->Note), 4);
            AddBufferByte(package, &StartBit, ((unsigned char)Note->Duration), 3);
            AddBufferByte(package, &StartBit, ((unsigned char)Note->DurationSpec), 2);
            HowManyCommands++;
            /* We are sure, we pack it for SMS or setting to phone, not for OTT file */
            if (*maxlength<1000) {
                  /* Like Pc Composer say - before of phone limitations...*/
                  if (HowManyNotes==130-1) break;
            }
            HowManyNotes++;
      }

      BufferAlign(package, &StartBit);
      AddBufferByte(package, &StartBit, SM_CommandEnd_CommandEnd, 8);

      OldStartBit = StartBit;
      StartBit = StartBitHowManyCommands;
      /* HowManyCommands */
      AddBufferByte(package, &StartBit, ((unsigned char)HowManyCommands), 8);
      StartBit = OldStartBit;

      *maxlength=StartBit/8;

      return(i);
}

GSM_Error GSM_DecodeNokiaRTTLRingtone(GSM_Ringtone *ringtone, unsigned char *package, int maxlength)
{
      int               StartBit=0, HowMany, l, q, i, spec;
      char              Buffer[100];
      GSM_RingNote            *Note;

      /* Default ringtone parameters */
      GSM_RingNoteScale       DefScale    = Scale_880;
      GSM_RingNoteStyle       DefStyle    = NaturalStyle;
      int               DefTempo    = 63;

      ringtone->Format        = RING_NOTETONE;
      ringtone->NoteTone.NrCommands       = 0;

      GetBufferInt(package,&StartBit,&l,8);
      if (l!=0x02) {
            dbgprintf("Not header\n");
            return ERR_NOTSUPPORTED;
      }

      GetBufferInt(package,&StartBit,&l,7);
      if (l!=SM_Command_RingingToneProgramming) {
            dbgprintf("Not RingingToneProgramming\n");
            return ERR_NOTSUPPORTED;
      }

      /* According to specification we need have next part octet-aligned */
      BufferAlignNumber(&StartBit);

      GetBufferInt(package,&StartBit,&l,7);
      if (l!=SM_Command_Sound) {
            dbgprintf("Not Sound\n");
            return ERR_NOTSUPPORTED;
      }

      GetBufferInt(package,&StartBit,&l,3);
      if (l!=SM_Song_BasicSongType) {
            dbgprintf("Not BasicSongType\n");
            return ERR_NOTSUPPORTED;
      }

      /* Getting length of the tune name */
      GetBufferInt(package,&StartBit,&l,4);
      l=l>>4;

      /* Unpacking the name of the tune. */
      GetBuffer(package, &StartBit, Buffer, 8*l);
      Buffer[l]=0;
      EncodeUnicode(ringtone->Name,Buffer,strlen(Buffer));
      DecodeUnicodeSpecialNOKIAChars(Buffer, ringtone->Name, UnicodeLength(ringtone->Name));
      CopyUnicodeString(ringtone->Name,Buffer);

      GetBufferInt(package,&StartBit,&l,8);
      dbgprintf("Number of song patterns: %i\n",l);
      /* we support only one song pattern */
      if (l!=1) return ERR_NOTSUPPORTED;

      GetBufferInt(package,&StartBit,&l,3);
      if (l!=SM_InstructionID_PatternHeaderId) {
            dbgprintf("Not PatternHeaderId\n");
            return ERR_NOTSUPPORTED;
      }

      /* Pattern ID - we ignore it */
      StartBit+=2;

      GetBufferInt(package,&StartBit,&l,4);
      l=l>>4;
      dbgprintf("Loop value: %i\n",l);

      HowMany=0;
      GetBufferInt(package, &StartBit, &HowMany, 8);

      for (i=0;i<HowMany;i++) {
            GetBufferInt(package,&StartBit,&q,3);
            switch (q) {
            case SM_InstructionID_VolumeInstructionId:
                  StartBit+=4;
                  break;
            case SM_InstructionID_StyleInstructionId:
                  GetBufferInt(package,&StartBit,&l,2);
                  if (l>=NaturalStyle && l<=StaccatoStyle) DefStyle = l;
                  break;
            case SM_InstructionID_TempoInstructionId:
                  GetBufferInt(package,&StartBit,&l,5);
                  DefTempo=SM_BeatsPerMinute[l>>3];
                  break;
            case SM_InstructionID_ScaleInstructionId:
                  GetBufferInt(package,&StartBit,&l,2);
                  DefScale=(l>>6)+4;
                  break;
            case SM_InstructionID_NoteInstructionId:
                  Note = &ringtone->NoteTone.Commands[ringtone->NoteTone.NrCommands].Note;
                  ringtone->NoteTone.Commands[ringtone->NoteTone.NrCommands].Type = RING_Note;

                  GetBufferInt(package,&StartBit,&l,4);
                  Note->Note=Note_Pause;
                  if (l >= Note_C && l <= Note_H) Note->Note = l;

                  GetBufferInt(package,&StartBit,&l,3);
                  if (l >= Duration_Full && l <= Duration_1_32) Note->Duration = l;

                  GetBufferInt(package,&StartBit,&spec,2);
                  if (spec >= NoSpecialDuration && spec <= Length_2_3) {
                        Note->DurationSpec = spec;
                  }

                  Note->Scale = DefScale;
                  Note->Style = DefStyle;
                  Note->Tempo = DefTempo;
                  if (ringtone->NoteTone.NrCommands==MAX_RINGTONE_NOTES) break;
                  ringtone->NoteTone.NrCommands++;
                  break;
            default:
                  dbgprintf("Unsupported block %i %i\n",q,i);
                  return ERR_NOTSUPPORTED;
            }
      }
      return ERR_NONE;
}

static void RTTL2Binary(GSM_Ringtone *dest, GSM_Ringtone *src)
{
      int         current = 0, i, note, lastnote = 0, duration;
      GSM_RingNote      *Note;
      unsigned char     end[] = {0x40, 0x7D, 0x40, 0x5C, 0x0A, 0xFE, 0x40,
                         0x20, 0x40, 0x7D, 0x40, 0x37, 0x0A, 0xFE,
                         0x0A, 0x0A, 0x40, 0x32, 0x07, 0x0B};

      strcpy(dest->NokiaBinary.Frame+current,"\x02\xFC\x09");     current=current+3;
      dest->NokiaBinary.Frame[current++]=0x00;

/*    This command can be used to loop, where 0xLL = 0x01 - 0x10
 *    0x01=loop once [...] 0x10=loop infinite
 *    Commented now

      dest->NokiaBinary.Frame[current++]=0x05;
      dest->NokiaBinary.Frame[current++]=0xLL;
 */
      strcpy(dest->NokiaBinary.Frame+current,"\x0A\x01");   current=current+2;

      for (i=0; i<src->NoteTone.NrCommands; i++) {
            if (src->NoteTone.Commands[i].Type != RING_Note) continue;

            Note = &src->NoteTone.Commands[i].Note;
            note = 64; /* Pause */
            if (Note->Note!=Note_Pause) {
                  if (Note->Note >= Note_C && Note->Note <= Note_H) {
                        note = 113 + Note->Note/16;
                  }
                  switch (Note->Scale) {
                        case Scale_440 :              break;
                        case Scale_880 : note = note + 12;  break;
                        case Scale_1760: note = note + 24;  break;
                        case Scale_3520: note = note + 36;  break;
                        default            :                break;
                  }
            }

            /* In 7110 we have 8 ms long sounds */
            duration = 60000 * GSM_RingNoteGetFullDuration(*Note) / Note->Tempo / 256;

            switch (Note->Style) {
            case StaccatoStyle:
                  if (duration) {
                        /* Note needs only one sound */
                        dest->NokiaBinary.Frame[current++] = note;
                        dest->NokiaBinary.Frame[current++] = 1;
                        duration--;
                  }
                  note = 0x40; /* The rest is pause */
            case NaturalStyle:
                  if (note != 0x40 && duration) {
                        dest->NokiaBinary.Frame[current++] = 0x40;
                        /* There is small pause between notes */
                        dest->NokiaBinary.Frame[current++] = 1;
                        duration--;
                  }
            default:
                  if (note != 0x40 && note == lastnote && duration) {
                        dest->NokiaBinary.Frame[current++] = 0x40;
                        /* There is small pause between same notes */
                        dest->NokiaBinary.Frame[current++] = 1;
                        duration--;
                  }
                  while (duration > 125) {
                        dest->NokiaBinary.Frame[current++] = note;
                        dest->NokiaBinary.Frame[current++] = 125;
                        duration -= 125;
                  }
                  dest->NokiaBinary.Frame[current++] = note;
                  dest->NokiaBinary.Frame[current++] = duration;
            }
            lastnote = note;
      }
      for (i = 0; i < (int)sizeof(end); i++) dest->NokiaBinary.Frame[current++] = end[i];
      dest->NokiaBinary.Length=current;
}

static void Binary2RTTL(GSM_Ringtone *dest, GSM_Ringtone *src)
{
      int                i = 3, j, z, NrNotes = 0, repeat = 0, accuracy;
      int                StartRepeat = 0, EndRepeat, Speed;
      unsigned char            command,length=0;
      int                NotesLen[500];
      GSM_RingNoteScale  NotesScale[500];
      GSM_RingNoteNote   Notes[500];
      int                Lengths[6*4];
      GSM_RingNoteDurationSpec DurationSpec[6*4];
      GSM_RingNoteDuration     Duration[6*4];
      bool               foundlen;
      GSM_RingNote             *Note;

      while (i<src->NokiaBinary.Length) {
            command = src->NokiaBinary.Frame[i];
            i++;
            if (command != 0x06 && command != 0x00 && command != 0x09) {
                  length = src->NokiaBinary.Frame[i];
                  i++;
                  dbgprintf("Block %02x %02x - ",length,command);
            } else dbgprintf("Block %02x - ",command);
            if (command >= 114 && command <= 161) {
                  dbgprintf("note\n");
                  if (command >= 114 && command <= 124) {
                        NotesScale[NrNotes] = Scale_440;   command -= 114;
                  } else if (command >= 125 && command <= 137) {
                        NotesScale[NrNotes] = Scale_880;   command -= 126;
                  } else if (command >= 138 && command <= 149) {
                        NotesScale[NrNotes] = Scale_1760;  command -= 138;
                  } else if (command >= 150 && command <= 161) {
                        NotesScale[NrNotes] = Scale_3520;  command -= 150;
                  }
                  switch (command) {
                        case   0 : Notes[NrNotes] = Note_C; break;
                        case   1 : Notes[NrNotes] = Note_Cis;     break;
                        case   2 : Notes[NrNotes] = Note_D; break;
                        case   3 : Notes[NrNotes] = Note_Dis;     break;
                        case   4 : Notes[NrNotes] = Note_E; break;
                        case   5 : Notes[NrNotes] = Note_F; break;
                        case   6 : Notes[NrNotes] = Note_Fis;     break;
                        case   7 : Notes[NrNotes] = Note_G; break;
                        case   8 : Notes[NrNotes] = Note_Gis;     break;
                        case   9 : Notes[NrNotes] = Note_A; break;
                        case  10 : Notes[NrNotes] = Note_Ais;     break;
                        case  11 : Notes[NrNotes] = Note_H; break;
                  }
                  if (NrNotes > 0) {
                        if (Notes[NrNotes-1] == Notes[NrNotes] &&
                            NotesScale[NrNotes-1] == NotesScale[NrNotes]) {
                              NotesLen[NrNotes-1]+=length;
                        } else {
                              NotesLen[NrNotes]=length;
                              NrNotes++;
                        }
                  } else {
                        NotesLen[NrNotes]=length;
                        NrNotes++;
                  }
            } else switch (command) {
                  case 0x00:
                        dbgprintf("Unknown\n");
                        break;
                  case 0x05:
                        dbgprintf("repeat %i times\n",length);
                        repeat            = length;
                        StartRepeat       = NrNotes;
                        break;
                  case 0x06:
                        dbgprintf("end repeat\n");
                        EndRepeat = NrNotes;
                        for (z=0;z<repeat-1;z++) {
                              for (j=StartRepeat;j<EndRepeat;j++) {
                                    Notes[NrNotes]          = Notes[j];
                                    NotesScale[NrNotes]     = NotesScale[j];
                                    NotesLen[NrNotes]       = NotesLen[j];
                                    NrNotes++;
                                    dbgprintf("Adding repeat note %i %i\n",Notes[j],NotesLen[j]);
                              }
                        }
                        break;
                  case 0x07:
                        if (length == 0x0B) {
                              dbgprintf("Ringtone end\n");
                              i = src->NokiaBinary.Length + 1;
                        }
                        break;
                  case 0x09:
                        dbgprintf("Unknown\n");
                        break;
                  case 0x0A:
                        if (length == 0x01) {
                              dbgprintf("Let's start our song\n");
                              break;
                        }
                        if (length == 0x0A) {
                              dbgprintf("Ending joining note\n");
                              break;
                        }
                        if (length == 0xFE) {
                              dbgprintf("Starting joining note\n");
                              break;
                        }
                        break;
                  case 0x40:
                        dbgprintf("Pause\n");
                        Notes[NrNotes] = Note_Pause;
                        if (NrNotes > 0) {
                              if (Notes[NrNotes-1] == Notes[NrNotes] &&
                                  NotesScale[NrNotes-1] == NotesScale[NrNotes]) {
                                    NotesLen[NrNotes-1]+=length;
                              } else {
                                    NotesLen[NrNotes]=length;
                                    NrNotes++;
                              }
                        } else {
                              NotesLen[NrNotes]=length;
                              NrNotes++;
                        }
                        break;
                  default:
                        dbgprintf("Unknown\n");
                  }
      }

      while (NrNotes>0) {
            if (Notes[NrNotes-1] == Note_Pause) {
                  NrNotes--;
            } else break;
      }

      for (accuracy=1; accuracy<5; accuracy++) {
            i = 1;
            while (i < 1000)  {
                  Lengths[0] = 30000/i;
                  for (j=0;j<5;j++) Lengths[j+1]      = Lengths[j] / 2;
                  for (j=0;j<6;j++) Lengths[6+j]      = Lengths[j] * 3/2;
                  for (j=0;j<6;j++) Lengths[12+j] = Lengths[j] * 9/4;
                  for (j=0;j<6;j++) Lengths[18+j] = Lengths[j] * 2/3;

#ifdef DEBUG
                  dbgprintf("Length matrix (%i) : ",i);
                  for (j=0;j<6*4;j++) dbgprintf("%i ",Lengths[j]);
                  dbgprintf("\n");
#endif
                  foundlen = false;

                  for (j=0;j<NrNotes;j++) {
                        dbgprintf("Comparing to %i\n",NotesLen[j]);
                        foundlen = false;
                        for (z=0;z<6*4;z++) {
                              if (NotesLen[j] - Lengths[z] > -accuracy &&
                                  NotesLen[j] - Lengths[z] < accuracy) {
                                    foundlen = true;
                                    break;
                              }
                        }
                        if (!foundlen) break;
                  }
                  if (foundlen) break;
                  i++;
            }

            if (foundlen) {
                  Speed = i;
                  Duration[5] = Duration_1_32; Duration[4] = Duration_1_16;
                  Duration[3] = Duration_1_8;  Duration[2] = Duration_1_4;
                  Duration[1] = Duration_1_2;  Duration[0] = Duration_Full;
                  for (i=0;i<6;i++) Duration[i]             = Duration[i];
                  for (i=0;i<6;i++) Duration[i+6]     = Duration[i];
                  for (i=0;i<6;i++) Duration[i+12]    = Duration[i];
                  for (i=0;i<6;i++) Duration[i+18]    = Duration[i];
                  for (i=0;i<6;i++) DurationSpec[i]   = NoSpecialDuration;
                  for (i=0;i<6;i++) DurationSpec[i+6]       = DottedNote;
                  for (i=0;i<6;i++) DurationSpec[i+12]      = DoubleDottedNote;
                  for (i=0;i<6;i++) DurationSpec[i+18]      = Length_2_3;

                  for (i=0;i<NrNotes;i++) {
                        dest->NoteTone.Commands[i].Type     = RING_Note;
                        Note = &dest->NoteTone.Commands[i].Note;
                        Note->Note        = Notes[i];
                        Note->Tempo             = Speed;
                        Note->Style             = ContinuousStyle;
                        if (Notes[i] != Note_Pause) Note->Scale = NotesScale[i];
                        for (z=0;z<6*4;z++) {
                              if (NotesLen[i] - Lengths[z] > -accuracy &&
                                  NotesLen[i] - Lengths[z] < accuracy) {
                                    Note->Duration          = Duration[z];
                                    Note->DurationSpec      = DurationSpec[z];
                                    /* Trick from PPM Edit */
                                    if (Note->DurationSpec == DoubleDottedNote) {
                                          switch (Note->Duration) {
                                          case Duration_Full:Note->Duration = Duration_Full;break;
                                          case Duration_1_2 :Note->Duration = Duration_Full;break;
                                          case Duration_1_4 :Note->Duration = Duration_1_2; break;
                                          case Duration_1_8 :Note->Duration = Duration_1_4; break;
                                          case Duration_1_16:Note->Duration = Duration_1_8; break;
                                          case Duration_1_32:Note->Duration = Duration_1_16;break;
                                          }
                                          Note->DurationSpec = NoSpecialDuration;
                                    }
                                    /* Here happy creation */
                                    if (Note->DurationSpec == Length_2_3) {
                                          Note->DurationSpec = NoSpecialDuration;
                                    }

                                    break;
                              }
                        }
                  }
                  dest->NoteTone.NrCommands = NrNotes;
                  dbgprintf("speed = %i\n",Speed);
                  break;
            }
      }

      if (!foundlen) dest->NoteTone.NrCommands = 0;
}

GSM_Error GSM_RingtoneConvert(GSM_Ringtone *dest, GSM_Ringtone *src, GSM_RingtoneFormat   Format)
{
      dest->Format = Format;
      CopyUnicodeString(dest->Name,src->Name);
      if (src->Format==RING_NOTETONE && Format==RING_NOKIABINARY) {
            RTTL2Binary(dest, src);
            return ERR_NONE;
      }
      if (src->Format==RING_NOKIABINARY && Format==RING_NOTETONE) {
            Binary2RTTL(dest, src);
            return ERR_NONE;
      }
      /* The same source and target format */
      if (src->Format==Format) {
            memcpy(dest,src,sizeof(GSM_Ringtone));
            return ERR_NONE;
      }
      return ERR_NOTIMPLEMENTED;
}

/* 0 = No header and footer, 0.5 = partial header and footer,
 * 1.0 = IMelody 1.0, 1.2 = IMelody 1.2 */
unsigned char GSM_EncodeEMSSound(GSM_Ringtone ringtone, unsigned char *package, int *maxlength, double version, bool start)
{
      int               i, NrNotes = 0, Len, Max = *maxlength;

      GSM_RingNote            *Note;

      GSM_RingNoteScale DefNoteScale;
      GSM_RingNoteStyle DefNoteStyle=0;
      int               DefNoteTempo=0;

      bool              started = false, end;

      *maxlength = 0;

      if (start) {
            if (version != 0)   *maxlength+=sprintf(package,"BEGIN:IMELODY%c%c",13,10);
            if (version == 1.0) *maxlength+=sprintf(package+(*maxlength),"VERSION:1.0%c%c",13,10);
            if (version == 1.2) *maxlength+=sprintf(package+(*maxlength),"VERSION:1.2%c%c",13,10);
            if (version >= 1.0) *maxlength+=sprintf(package+(*maxlength),"FORMAT:CLASS1.0%c%c",13,10);
            if (version == 1.2) *maxlength+=sprintf(package+(*maxlength),"NAME:%s%c%c",DecodeUnicodeString(ringtone.Name),13,10);
      }

      DefNoteScale = Scale_880; /* by iMelody definition */

      for (i=0;i<ringtone.NoteTone.NrCommands;i++) {
            Len = *maxlength;
            if (ringtone.NoteTone.Commands[i].Type != RING_Note) continue;

            Note = &ringtone.NoteTone.Commands[i].Note;
            if (Note->Note == Note_Pause) continue;

            if (version == 1.2 && start) {
                  /* Save the default tempo */
                  DefNoteTempo = Note->Tempo;
                  Len+=sprintf(package+Len,"BEAT:%i%c%c",DefNoteTempo,13,10);
                  dbgprintf("DefNoteTempo=%d\n",DefNoteTempo);

                  /* Save default style */
                  DefNoteStyle = Note->Style;
                  switch (DefNoteStyle) {
                        case NaturalStyle   :Len+=sprintf(package+Len,"STYLE:S0%c%c",13,10); break;
                        case ContinuousStyle:Len+=sprintf(package+Len,"STYLE:S1%c%c",13,10); break;
                        case StaccatoStyle  :Len+=sprintf(package+Len,"STYLE:S2%c%c",13,10); break;
                  }
            }
            Len+=sprintf(package+Len,"MELODY:");
            if (version != 0) {
                  /* 15 = Len of END:IMELODY... */
                  if ((Len+15) > Max) { end = true; break; }
            } else {
                  if (Len > Max) { end = true; break; }
            }
            *maxlength = Len;
            break;
      }

      for (i=0;i<ringtone.NoteTone.NrCommands;i++) {
            end = false;
            Len = *maxlength;
            switch (ringtone.NoteTone.Commands[i].Type) {
            case RING_Note:
                  Note = &ringtone.NoteTone.Commands[i].Note;
                  if (!started && Note->Note != Note_Pause) started = true;
                  if (!started) break;
                  if (Note->Note!=Note_Pause && Note->Scale != DefNoteScale) {
                        Len+=sprintf(package+Len,"*%i",Note->Scale-1);
                  }
                  switch (Note->Note) {
                        case Note_C       :Len+=sprintf(package+Len,"c");     break;
                        case Note_Cis     :Len+=sprintf(package+Len,"#c");break;
                        case Note_D       :Len+=sprintf(package+Len,"d");     break;
                        case Note_Dis     :Len+=sprintf(package+Len,"#d");break;
                        case Note_E       :Len+=sprintf(package+Len,"e");     break;
                        case Note_F       :Len+=sprintf(package+Len,"f");     break;
                        case Note_Fis     :Len+=sprintf(package+Len,"#f");break;
                        case Note_G       :Len+=sprintf(package+Len,"g");     break;
                        case Note_Gis     :Len+=sprintf(package+Len,"#g");break;
                        case Note_A       :Len+=sprintf(package+Len,"a");     break;
                        case Note_Ais     :Len+=sprintf(package+Len,"#a");break;
                        case Note_H       :Len+=sprintf(package+Len,"b");     break;
                        case Note_Pause   :Len+=sprintf(package+Len,"r");     break;
                  }
                  switch (Note->Duration) {
                        case Duration_Full : package[Len++]='0';  break;
                        case Duration_1_2  : package[Len++]='1';  break;
                        case Duration_1_4  : package[Len++]='2';  break;
                        case Duration_1_8  : package[Len++]='3';  break;
                        case Duration_1_16 : package[Len++]='4';  break;
                        case Duration_1_32 : package[Len++]='5';  break;
                        default              :                    break;
                  }
                  switch (Note->DurationSpec) {
                        case DottedNote         : package[Len++] = '.'; break;
                        case DoubleDottedNote   : package[Len++] = ':'; break;
                        case Length_2_3         : package[Len++] = ';'; break;
                        default                 :                 break;
                  }
                  if (version != 0) {
                        /* 15 = Len of END:IMELODY... */
                        if ((Len+15) > Max) { end = true; break; }
                  } else {
                        if (Len > Max) { end = true; break; }
                  }
                  *maxlength = Len;
                  break;
            case RING_DisableLED:
                  if ((Len + 6) > Max) { end = true; break; }
                  (*maxlength)+=sprintf(package+Len,"ledoff");
                  break;
            case RING_EnableLED:
                  if ((Len + 5) > Max) { end = true; break; }
                  (*maxlength)+=sprintf(package+Len,"ledon");
                  break;
            case RING_DisableVibra:
                  if ((Len + 7) > Max) { end = true; break; }
                  (*maxlength)+=sprintf(package+Len,"vibeoff");
                  break;
            case RING_EnableVibra:
                  if ((Len + 6) > Max) { end = true; break; }
                  (*maxlength)+=sprintf(package+Len,"vibeon");
                  break;
            case RING_DisableLight:
                  if ((Len + 7) > Max) { end = true; break; }
                  (*maxlength)+=sprintf(package+Len,"backoff");
                  break;
            case RING_EnableLight:
                  if ((Len + 6) > Max) { end = true; break; }
                  (*maxlength)+=sprintf(package+Len,"backon");
                  break;
            default:
                  break;
            }
            if (end) break;
            NrNotes ++;
      }

      if (version != 0) *maxlength+=sprintf(package+(*maxlength),"%c%cEND:IMELODY%c%c",13,10,13,10);

      return NrNotes;
}

char *GSM_GetRingtoneName(GSM_AllRingtonesInfo *Info, int ID)
{
      int         i;
      static char       ala[2];

      for (i=0;i<Info->Number;i++) {
            if (Info->Ringtone[i].ID == ID) return Info->Ringtone[i].Name;
      }

      ala[0] = 0;
      ala[1] = 0;
      return ala;
}

/* How should editor hadle tabs in this file? Add editor commands here.
 * vim: noexpandtab sw=8 ts=8 sts=8:
 */

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