git.mutantstargoat.com Git - dos_auplay/blob - src/main.c

   1 #include <stdio.h>\r
   2 #include <stdlib.h>\r
   3 #include <string.h>\r
   4 #include <dos.h>\r
   5 #include <conio.h>\r
   6 #include "aufile.h"\r
   7 #include "audio.h"\r
   8 \r
   9 #define DBG_PRELOAD\r
  10 \r
  11 static int play_file(const char *fname);\r
  12 static int cbfunc(void *buf, int size, void *cls);\r
  13 static void print_usage(const char *argv0);\r
  14 \r
  15 static int vol = 220;\r
  16 static int quit;\r
  17 \r
  18 int main(int argc, char **argv)\r
  19 {\r
  20         int i;\r
  21 \r
  22         if(audio_init() == -1) {\r
  23                 return 1;\r
  24         }\r
  25         audio_volume(vol);\r
  26 \r
  27         for(i=1; i<argc; i++) {\r
  28                 if(argv[i][0] == '-') {\r
  29                         if(strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "-help") == 0) {\r
  30                                 print_usage(argv[0]);\r
  31                                 return 0;\r
  32                         } else {\r
  33                                 fprintf(stderr, "invalid option: %s\n", argv[i]);\r
  34                                 return 1;\r
  35                         }\r
  36                 } else {\r
  37                         play_file(argv[i]);\r
  38                         if(quit) break;\r
  39                 }\r
  40         }\r
  41         return 0;\r
  42 }\r
  43 \r
  44 static unsigned char *dbg_samples;\r
  45 static int dbg_cur_offs;\r
  46 \r
  47 static int play_file(const char *fname)\r
  48 {\r
  49         struct au_file *au;\r
  50         int paused = 0;\r
  51         unsigned long prev;\r
  52 \r
  53         if(!(au = au_open(fname))) {\r
  54                 return -1;\r
  55         }\r
  56 \r
  57         audio_set_callback(cbfunc, au);\r
  58 \r
  59 #ifdef DBG_PRELOAD\r
  60         if(!(dbg_samples = malloc(au->size))) {\r
  61                 perror("failed to preload samples into memory");\r
  62                 return -1;\r
  63         }\r
  64         dbg_cur_offs = 0;\r
  65         if(au_read(au, dbg_samples, au->size) < au->size) {\r
  66                 perror("failed to preload samples into memory");\r
  67                 return -1;\r
  68         }\r
  69 #endif\r
  70 \r
  71         audio_play(au->rate, au->bits, au->chan);\r
  72         while(audio_isplaying()) {\r
  73                 if(kbhit()) {\r
  74                         int c = getch();\r
  75                         switch(c) {\r
  76                         case 27:\r
  77                                 audio_stop();\r
  78                                 quit = 1;\r
  79                                 goto end;\r
  80 \r
  81                         case ' ':\r
  82                                 paused = !paused;\r
  83                                 if(paused) {\r
  84                                         audio_pause();\r
  85                                         printf("pause\n");\r
  86                                 } else {\r
  87                                         audio_resume();\r
  88                                         printf("resume\n");\r
  89                                 }\r
  90                                 break;\r
  91 \r
  92                         case '=':\r
  93                                 vol += 32;\r
  94                                 if(vol > 255) vol = 255;\r
  95                                 audio_volume(vol);\r
  96                                 printf("volume: %d%%\n", 101 * vol / 256);\r
  97                                 break;\r
  98 \r
  99                         case '-':\r
 100                                 vol -= 32;\r
 101                                 if(vol < 0) vol = 0;\r
 102                                 audio_volume(vol);\r
 103                                 printf("volume: %d%%\n", 101 * vol / 256);\r
 104                                 break;\r
 105 \r
 106                         default:\r
 107                                 break;\r
 108                         }\r
 109                 }\r
 110 \r
 111                 _disable();\r
 112                 if(dbg_cur_offs != prev) {\r
 113                         prev = dbg_cur_offs;\r
 114                         _enable();\r
 115 \r
 116                         printf("%3d%% - offs: %lu/%lu\n", 100 * prev / au->size, prev, au->size);\r
 117                 } else {\r
 118                         _enable();\r
 119                 }\r
 120 \r
 121         }\r
 122 \r
 123 end:\r
 124         au_close(au);\r
 125 #ifdef DBG_PRELOAD\r
 126         free(dbg_samples);\r
 127 #endif\r
 128         return 0;\r
 129 }\r
 130 \r
 131 #ifdef DBG_PRELOAD\r
 132 static int cbfunc(void *buf, int size, void *cls)\r
 133 {\r
 134         struct au_file *au = cls;\r
 135 \r
 136         if(dbg_cur_offs + size > au->size) {\r
 137                 size = au->size - dbg_cur_offs;\r
 138         }\r
 139         if(size <= 0) return 0;\r
 140 \r
 141         memcpy(buf, dbg_samples + dbg_cur_offs, size);\r
 142         dbg_cur_offs += size;\r
 143         return size;\r
 144 }\r
 145 #else\r
 146 static int cbfunc(void *buf, int size, void *cls)\r
 147 {\r
 148         int rd;\r
 149 \r
 150         if((rd = au_read(cls, buf, size)) <= 0) {\r
 151                 return 0;\r
 152         }\r
 153         return rd;\r
 154 }\r
 155 #endif\r
 156 \r
 157 static void print_usage(const char *argv0)\r
 158 {\r
 159         printf("Usage: %s [options] <file1> <file2> ... <filen>\n", argv0);\r
 160         printf("options:\n");\r
 161         printf(" -h,-help: print usage and exit\n");\r
 162 }\r