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  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  * A tool to generate the Rockbox "voicefont", a collection of all the UI
  21  * strings.
  22  *
  23  * Details at http://www.rockbox.org/twiki/bin/view/Main/VoiceBuilding
  24  *
  25  ****************************************************************************/
  26
  27 #include "voicefont.h"
  28
  29 #include <stdio.h>
  30 #include <string.h>
  31
  32 #define HEADER_SIZE 20
  33
  34 /* endian conversion macros */
  35 #if defined(__BIG_ENDIAN__)
  36 #define SWAP2(x) (x)
  37 #define SWAP4(x) (x)
  38 #else
  39 #define SWAP2(x) ((((unsigned)(x)>>8) & 0x00ff) | (((unsigned)(x)<<8) & 0xff00))
  40 #define SWAP4(x) ((((unsigned)(x)>>24) & 0x000000ff) |\
  41                   (((unsigned)(x)>>8)  & 0x0000ff00) |\
  42                   (((unsigned)(x)<<8)  & 0x00ff0000) |\
  43                   (((unsigned)(x)<<24) & 0xff000000))
  44 #endif
  45
  46 /* bitswap audio bytes, LSB becomes MSB and vice versa */
  47 int BitswapAudio (unsigned char* pDest, unsigned char* pSrc, size_t len)
  48 {
  49     static const unsigned char Lookup[256] =
  50     {
  51         0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
  52         0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
  53         0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
  54         0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
  55         0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
  56         0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
  57         0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
  58         0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
  59         0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
  60         0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
  61         0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
  62         0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
  63         0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
  64         0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
  65         0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
  66         0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
  67     };
  68
  69     while (len--)
  70         *pDest++ = Lookup[*pSrc++];
  71
  72     return 0;
  73 }
  74
  75 int voicefont(FILE* voicefontids,int targetnum,char* filedir, FILE* output)
  76 {
  77
  78     int i,j;
  79
  80     /* two tables, one for normal strings, one for voice-only (>0x8000) */
  81     static char names[1000][80]; /* worst-case space */
  82     char name[80]; /* one string ID */
  83     static int pos[1000]; /* position of sample */
  84     static int size[1000]; /* length of clip */
  85     int voiceonly[1000]; /* flag if this is voice only */
  86     int count = 0;
  87     int count_voiceonly = 0;
  88     unsigned int value; /* value to be written to file */
  89     static unsigned char buffer[65535]; /* clip buffer, allow only 64K */
  90     int fields;
  91     char line[255]; /* one line from the .lang file */
  92     char mp3filename1[1024];
  93     char mp3filename2[1024];
  94     char* mp3filename;
  95     FILE* pMp3File;
  96     int target_id;
  97     int do_bitswap_audio = 0;
  98
  99
 100     /* We bitswap the voice file only SH based archos players, target IDs
 101          equal to or lower than 8. See the target_id line for each target in
 102          configure */
 103     target_id = targetnum;
 104     if (target_id <= 8)
 105         do_bitswap_audio = 1;
 106
 107     memset(voiceonly, 0, sizeof(voiceonly));
 108     while (!feof(voicefontids))
 109     {
 110         fgets(line, sizeof(line), voicefontids);
 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(voicefontids);
 125
 126     fseek(output, HEADER_SIZE + count*8, SEEK_SET); /* space for header */
 127
 128     for (i=0; i<count; i++)
 129     {
 130         if (voiceonly[i] == 1)
 131             count_voiceonly++;
 132
 133         pos[i] = ftell(output);
 134         sprintf(mp3filename1, "%s%s.mp3", filedir, names[i]);
 135         sprintf(mp3filename2, "%s%s.wav.mp3", filedir, names[i]);
 136         mp3filename = mp3filename1;
 137         pMp3File = fopen(mp3filename, "rb");
 138         if (pMp3File == NULL)
 139         {   /* alternatively, try the lame default filename */
 140             mp3filename = mp3filename2;
 141             pMp3File = fopen(mp3filename, "rb");
 142             if (pMp3File == NULL)
 143             {
 144                 printf("mp3 file %s not found!\n", mp3filename1);
 145                 size[i] = 0;
 146                 continue;
 147             }
 148         }
 149         printf("processing %s\n", mp3filename);
 150
 151         size[i] = fread(buffer, 1, sizeof(buffer), pMp3File);
 152         fclose(pMp3File);
 153         if (do_bitswap_audio)
 154             BitswapAudio(buffer, buffer, size[i]);
 155         fwrite(buffer, 1, size[i], output);
 156
 157         printf("%d %s %d\n", i, names[i], size[i]); /* debug */
 158     } /*  for i */
 159
 160
 161     fseek(output, 0, SEEK_SET);
 162
 163     /* Create the file format: */
 164
 165     /* 1st 32 bit value in the file is the version number    */
 166     value = SWAP4(400); /* 4.00 */
 167     fwrite(&value, sizeof(value), 1, output);
 168
 169     /* 2nd 32 bit value in the file is the id number for the target
 170        we made the voce file for */
 171     value = SWAP4(targetnum);
 172     fwrite(&value, sizeof(value), 1, output);
 173
 174     /* 3rd 32 bit value in the file is the header size (= 1st table position) */
 175     value = SWAP4(HEADER_SIZE); /* version, target id, header size, number1, number2 */
 176     fwrite(&value, sizeof(value), 1, output);
 177
 178     /* 4th 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, output);
 181
 182     /* 5th bit value in the file is the number of clips in 2nd table */
 183     value = SWAP4(count_voiceonly);
 184     fwrite(&value, sizeof(value), 1, output);
 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,output);
 204             value = SWAP4(size[i]); /* size */
 205             fwrite(&value, sizeof(value), 1, output);
 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(output);
 216
 217     return 0;
 218
 219
 220 }
 221 #ifndef RBUTIL
 222 int main (int argc, char** argv)
 223 {
 224     FILE *ids, *output;
 225
 226     if (argc < 2)
 227     {
 228         printf("Makes a Rockbox voicefont from a collection of mp3 clips.\n");
 229         printf("Usage: voicefont <string id list file> <target id> <mp3 path> <output file>\n");
 230         printf("\n");
 231         printf("Example: \n");
 232         printf("voicefont voicefontids.txt 2 voice\\ voicefont.bin\n");
 233         return -1;
 234     }
 235
 236     ids = fopen(argv[1], "r");
 237     if (ids == NULL)
 238     {
 239         printf("Error opening language file %s\n", argv[1]);
 240         return -2;
 241     }
 242
 243     output = fopen(argv[4], "wb");
 244     if (output == NULL)
 245     {
 246         printf("Error opening output file %s\n", argv[4]);
 247         return -2;
 248     }
 249
 250     voicefont(ids, atoi(argv[2]),argv[3],output);
 251     return 0;
 252 }
 253 #endif
 254