tools/voicefont.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2004 by Jörg Hohensohn
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  * A tool to generate the Rockbox "voicefont", a collection of all the UI
  19  * strings.
  20  *
  21  * Details at http://www.rockbox.org/twiki/bin/view/Main/VoiceBuilding
  22  *
  23  ****************************************************************************/
  24
  25 #include <stdio.h>
  26 #include <string.h>
  27
  28 /* endian conversion macros */
  29 #define SWAP2(x) ((((unsigned)(x)>>8) & 0x00ff) | (((unsigned)(x)<<8) & 0xff00))
  30 #define SWAP4(x) ((((unsigned)(x)>>24) & 0x000000ff) |\
  31                   (((unsigned)(x)>>8)  & 0x0000ff00) |\
  32                   (((unsigned)(x)<<8)  & 0x00ff0000) |\
  33                   (((unsigned)(x)<<24) & 0xff000000))
  34
  35
  36 /* bitswap audio bytes, LSB becomes MSB and vice versa */
  37 int BitswapAudio (unsigned char* pDest, unsigned char* pSrc, size_t len)
  38 {
  39     static const unsigned char Lookup[256] =
  40     {
  41         0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
  42         0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
  43         0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
  44         0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
  45         0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
  46         0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
  47         0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
  48         0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
  49         0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
  50         0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
  51         0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
  52         0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
  53         0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
  54         0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
  55         0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
  56         0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
  57     };
  58
  59     while (len--)
  60         *pDest++ = Lookup[*pSrc++];
  61
  62     return 0;
  63 }
  64
  65
  66 int main (int argc, char** argv)
  67 {
  68     FILE* pFile;
  69
  70     int i,j;
  71
  72     /* two tables, one for normal strings, one for voice-only (>0x8000) */
  73     static char names[1000][80]; /* worst-case space */
  74     char name[80]; /* one string ID */
  75     static int pos[1000]; /* position of sample */
  76     static int size[1000]; /* length of clip */
  77     int voiceonly[1000]; /* flag if this is voice only */
  78     int count = 0;
  79     int count_voiceonly = 0;
  80     unsigned int value; /* value to be written to file */
  81     static unsigned char buffer[65535]; /* clip buffer, allow only 64K */
  82     int fields;
  83     char line[255]; /* one line from the .lang file */
  84     char mp3filename1[1024];
  85     char mp3filename2[1024];
  86     char* mp3filename;
  87     FILE* pMp3File;
  88
  89
  90     if (argc < 2)
  91     {
  92         printf("Makes a Rockbox voicefont from a collection of mp3 clips.\n");
  93         printf("Usage: voicefont <language file> <mp3 path> <output file>\n");
  94         printf("\n");
  95         printf("Example: \n");
  96         printf("voicefont english.lang voice\\ voicefont.bin\n");
  97         return -1;
  98     }
  99
 100     pFile = fopen(argv[1], "r");
 101     if (pFile == NULL)
 102     {
 103         printf("Error opening language file %s\n", argv[1]);
 104         return -2;
 105     }
 106
 107     memset(voiceonly, 0, sizeof(voiceonly));
 108     while (!feof(pFile))
 109     {
 110         fgets(line, sizeof(line), pFile);
 111         if (line[0] == '#') /* comment */
 112             continue;
 113
 114         fields = sscanf(line, " id: %s", name);
 115         if (fields == 1)
 116         {
 117             count++; /* next entry started */
 118             strcpy(names[count-1], name);
 119             if (strncmp("VOICE_", name, 6) == 0) /* voice-only id? */
 120                 voiceonly[count-1] = 1;
 121             continue;
 122         }
 123     }
 124     fclose(pFile);
 125
 126     pFile = fopen(argv[3], "wb");
 127     if (pFile == NULL)
 128     {
 129         printf("Error opening output file %s\n", argv[3]);
 130         return -2;
 131     }
 132     fseek(pFile, 16 + count*8, SEEK_SET); /* space for header */
 133
 134     for (i=0; i<count; i++)
 135     {
 136         if (voiceonly[i] == 1)
 137             count_voiceonly++;
 138
 139         pos[i] = ftell(pFile);
 140         sprintf(mp3filename1, "%s%s.mp3", argv[2], names[i]);
 141         sprintf(mp3filename2, "%s%s.wav.mp3", argv[2], names[i]);
 142         mp3filename = mp3filename1;
 143         pMp3File = fopen(mp3filename, "rb");
 144         if (pMp3File == NULL)
 145         {   /* alternatively, try the lame default filename */
 146             mp3filename = mp3filename2;
 147             pMp3File = fopen(mp3filename, "rb");
 148             if (pMp3File == NULL)
 149             {
 150                 printf("mp3 file %s not found!\n", mp3filename1);
 151                 size[i] = 0;
 152                 continue;
 153             }
 154         }
 155         printf("processing %s\n", mp3filename);
 156
 157         size[i] = fread(buffer, 1, sizeof(buffer), pMp3File);
 158         fclose(pMp3File);
 159         BitswapAudio(buffer, buffer, size[i]);
 160         fwrite(buffer, 1, size[i], pFile);
 161
 162         printf("%d %s %d\n", i, names[i], size[i]); /* debug */
 163     } /*  for i */
 164
 165
 166     fseek(pFile, 0, SEEK_SET);
 167
 168     /* Create the file format: */
 169
 170     /* 1st 32 bit value in the file is the version number    */
 171     value = SWAP4(200); /* 2.00 */
 172     fwrite(&value, sizeof(value), 1, pFile);
 173
 174     /* 2nd 32 bit value in the file is the header size (= 1st table position) */
 175     value = SWAP4(16); /* 16 bytes: for version, header size, number1, number2 */
 176     fwrite(&value, sizeof(value), 1, pFile);
 177
 178     /* 3rd 32 bit value in the file is the number of clips in 1st table   */
 179     value = SWAP4(count-count_voiceonly);
 180     fwrite(&value, sizeof(value), 1, pFile);
 181
 182     /*  4th bit value in the file is the number of clips in 2nd table */
 183     value = SWAP4(count_voiceonly);
 184     fwrite(&value, sizeof(value), 1, pFile);
 185
 186     /* then followed by offset/size pairs for each clip */
 187     for (j=0; j<2; j++) /* now 2 tables */
 188     {
 189         for (i=0; i<count; i++)
 190         {
 191             if (j == 0) /* first run, skip the voice only ones */
 192             {
 193                 if (voiceonly[i] == 1)
 194                     continue;
 195             }
 196             else /* second run, skip the non voice only ones */
 197             {
 198                 if (!voiceonly[i] == 1)
 199                     continue;
 200             }
 201
 202             value = SWAP4(pos[i]); /* position */
 203             fwrite(&value, sizeof(value), 1, pFile);
 204             value = SWAP4(size[i]); /* size */
 205             fwrite(&value, sizeof(value), 1, pFile);
 206         } /* for i */
 207     } /* for j */
 208
 209
 210     /*
 211      * after this the actual bitswapped mp3 data follows,
 212      * which we already have written, see above.
 213      */
 214
 215     fclose(pFile);
 216
 217     return 0;
 218 }