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1 | #include <sys/stat.h> |
2 | #include "cd_file.h" |
3 | |
4 | #include "../PicoInt.h" |
5 | |
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6 | #define cdprintf dprintf |
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7 | //#define cdprintf(x...) |
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8 | #define DEBUG_CD |
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9 | |
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10 | |
11 | void FILE_End(void) |
12 | { |
13 | Unload_ISO(); |
14 | } |
15 | |
16 | |
17 | int Load_ISO(const char *iso_name, int is_bin) |
18 | { |
19 | struct stat file_stat; |
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20 | int i, j, num_track, Cur_LBA, index, ret, iso_name_len; |
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21 | _scd_track *Tracks = Pico_mcd->TOC.Tracks; |
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22 | FILE *tmp_file; |
23 | char tmp_name[1024], tmp_ext[10]; |
24 | static char *exts[] = { |
25 | "%02d.mp3", " %02d.mp3", "-%02d.mp3", "_%02d.mp3", " - %02d.mp3", |
26 | "%d.mp3", " %d.mp3", "-%d.mp3", "_%d.mp3", " - %d.mp3", |
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27 | "%02d.MP3", " %02d.MP3", "-%02d.MP3", "_%02d.MP3", " - %02d.MP3", |
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28 | /* "%02d.wav", " %02d.wav", "-%02d.wav", "_%02d.wav", " - %02d.wav", |
29 | "%d.wav", " %d.wav", "-%d.wav", "_%d.wav", " - %2d.wav" */ |
30 | }; |
31 | |
32 | Unload_ISO(); |
33 | |
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34 | Tracks[0].ftype = is_bin ? TYPE_BIN : TYPE_ISO; |
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35 | |
36 | ret = stat(iso_name, &file_stat); |
37 | if (ret != 0) return -1; |
38 | |
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39 | Tracks[0].Length = file_stat.st_size; |
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40 | |
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41 | if (Tracks[0].ftype == TYPE_ISO) Tracks[0].Length >>= 11; // size in sectors |
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42 | else Tracks[0].Length /= 2352; // size in sectors |
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43 | |
44 | |
45 | Tracks[0].F = fopen(iso_name, "rb"); |
46 | if (Tracks[0].F == NULL) |
47 | { |
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48 | Tracks[0].ftype = 0; |
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49 | Tracks[0].Length = 0; |
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50 | return -1; |
51 | } |
52 | |
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53 | if (Tracks[0].ftype == TYPE_ISO) fseek(Tracks[0].F, 0x100, SEEK_SET); |
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54 | else fseek(Tracks[0].F, 0x110, SEEK_SET); |
55 | |
56 | // fread(buf, 1, 0x200, Tracks[0].F); |
57 | fseek(Tracks[0].F, 0, SEEK_SET); |
58 | |
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59 | Tracks[0].MSF.M = 0; // minutes |
60 | Tracks[0].MSF.S = 2; // seconds |
61 | Tracks[0].MSF.F = 0; // frames |
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62 | |
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63 | cdprintf("Track 0 - %02d:%02d:%02d DATA", Tracks[0].MSF.M, Tracks[0].MSF.S, Tracks[0].MSF.F); |
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64 | |
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65 | Cur_LBA = Tracks[0].Length; // Size in sectors |
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66 | |
67 | strcpy(tmp_name, iso_name); |
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68 | iso_name_len = strlen(iso_name); |
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69 | |
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70 | for (num_track = 2, i = 0; i < 100; i++) |
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71 | { |
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72 | for(j = 0; j < sizeof(exts)/sizeof(char *); j++) |
73 | { |
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74 | int ext_len; |
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75 | sprintf(tmp_ext, exts[j], i); |
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76 | ext_len = strlen(tmp_ext); |
77 | |
78 | memcpy(tmp_name, iso_name, iso_name_len + 1); |
79 | tmp_name[iso_name_len - 4] = 0; |
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80 | strcat(tmp_name, tmp_ext); |
81 | |
82 | tmp_file = fopen(tmp_name, "rb"); |
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83 | if (!tmp_file && i > 1 && iso_name_len > ext_len) { |
84 | tmp_name[iso_name_len - ext_len] = 0; |
85 | strcat(tmp_name, tmp_ext); |
86 | tmp_file = fopen(tmp_name, "rb"); |
87 | } |
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88 | |
89 | if (tmp_file) |
90 | { |
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91 | // float fs; |
92 | int fs; |
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93 | index = num_track - 1; |
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94 | |
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95 | ret = stat(tmp_name, &file_stat); |
96 | fs = file_stat.st_size; // used to calculate lenght |
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97 | |
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98 | Tracks[index].KBtps = (short) mp3_get_bitrate(tmp_file, fs); |
99 | Tracks[index].KBtps >>= 3; |
100 | if (ret != 0 || Tracks[index].KBtps <= 0) |
101 | { |
102 | cdprintf("Error track %i: stat %i, rate %i", index, ret, Tracks[index].KBtps); |
103 | fclose(tmp_file); |
104 | continue; |
105 | } |
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106 | |
107 | Tracks[index].F = tmp_file; |
108 | |
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109 | LBA_to_MSF(Cur_LBA, &Tracks[index].MSF); |
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110 | |
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111 | // MP3 File |
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112 | Tracks[index].ftype = TYPE_MP3; |
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113 | fs *= 75; |
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114 | fs /= Tracks[index].KBtps * 1000; |
115 | Tracks[index].Length = fs; |
116 | Cur_LBA += Tracks[index].Length; |
117 | |
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118 | cdprintf("Track %i: %s - %02d:%02d:%02d len=%i AUDIO", index, tmp_name, Tracks[index].MSF.M, |
119 | Tracks[index].MSF.S, Tracks[index].MSF.F, fs); |
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120 | |
121 | num_track++; |
122 | break; |
123 | } |
124 | } |
125 | } |
126 | |
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127 | Pico_mcd->TOC.Last_Track = num_track - 1; |
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128 | |
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129 | index = num_track - 1; |
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130 | |
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131 | LBA_to_MSF(Cur_LBA, &Tracks[index].MSF); |
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132 | |
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133 | cdprintf("End CD - %02d:%02d:%02d\n\n", Tracks[index].MSF.M, |
134 | Tracks[index].MSF.S, Tracks[index].MSF.F); |
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135 | |
136 | return 0; |
137 | } |
138 | |
139 | |
140 | void Unload_ISO(void) |
141 | { |
142 | int i; |
143 | |
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144 | if (Pico_mcd == NULL) return; |
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145 | |
146 | for(i = 0; i < 100; i++) |
147 | { |
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148 | if (Pico_mcd->TOC.Tracks[i].F) fclose(Pico_mcd->TOC.Tracks[i].F); |
149 | Pico_mcd->TOC.Tracks[i].F = NULL; |
150 | Pico_mcd->TOC.Tracks[i].Length = 0; |
151 | Pico_mcd->TOC.Tracks[i].ftype = 0; |
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152 | } |
153 | } |
154 | |
155 | |
156 | int FILE_Read_One_LBA_CDC(void) |
157 | { |
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158 | int where_read = 0; |
159 | // static char cp_buf[2560]; |
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160 | |
161 | if (Pico_mcd->s68k_regs[0x36] & 1) // DATA |
162 | { |
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163 | if (Pico_mcd->TOC.Tracks[0].F == NULL) return -1; |
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164 | |
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165 | if (Pico_mcd->scd.Cur_LBA < 0) |
166 | where_read = 0; |
167 | else if (Pico_mcd->scd.Cur_LBA >= Pico_mcd->TOC.Tracks[0].Length) |
168 | where_read = Pico_mcd->TOC.Tracks[0].Length - 1; |
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169 | else where_read = Pico_mcd->scd.Cur_LBA; |
170 | |
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171 | if (Pico_mcd->TOC.Tracks[0].ftype == TYPE_ISO) where_read <<= 11; |
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172 | else where_read = (where_read * 2352 + 16); |
173 | |
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174 | // moved below.. |
175 | //fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET); |
176 | //fread(cp_buf, 1, 2048, Pico_mcd->TOC.Tracks[0].F); |
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177 | |
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178 | cdprintf("Read file CDC 1 data sector :\n"); |
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179 | } |
180 | else // AUDIO |
181 | { |
182 | // int rate, channel; |
183 | |
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184 | if (Pico_mcd->TOC.Tracks[Pico_mcd->scd.Cur_Track - 1].ftype == TYPE_MP3) |
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185 | { |
186 | // TODO |
187 | // MP3_Update(cp_buf, &rate, &channel, 0); |
188 | // Write_CD_Audio((short *) cp_buf, rate, channel, 588); |
189 | } |
190 | |
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191 | cdprintf("Read file CDC 1 audio sector :\n"); |
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192 | } |
193 | |
194 | // Update CDC stuff |
195 | |
196 | CDC_Update_Header(); |
197 | |
198 | if (Pico_mcd->s68k_regs[0x36] & 1) // DATA track |
199 | { |
200 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable |
201 | { |
202 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer |
203 | { |
204 | // CAUTION : lookahead bit not implemented |
205 | |
206 | Pico_mcd->scd.Cur_LBA++; |
207 | |
208 | Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA |
209 | Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF; |
210 | |
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211 | memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], &Pico_mcd->cdc.HEAD, 4); |
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212 | //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048); |
213 | |
214 | fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET); |
215 | fread(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, 1, 2048, Pico_mcd->TOC.Tracks[0].F); |
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216 | |
217 | #ifdef DEBUG_CD |
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218 | cdprintf("Read -> WA = %d Buffer[%d] =", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF); |
219 | cdprintf("Header 1 = %.2X %.2X %.2X %.2X", Pico_mcd->cdc.HEAD.B.B0, |
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220 | Pico_mcd->cdc.HEAD.B.B1, Pico_mcd->cdc.HEAD.B.B2, Pico_mcd->cdc.HEAD.B.B3); |
221 | cdprintf("Header 2 = %.2X %.2X %.2X %.2X --- %.2X %.2X\n\n", |
222 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 0) & 0x3FFF], |
223 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 1) & 0x3FFF], |
224 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 2) & 0x3FFF], |
225 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 3) & 0x3FFF], |
226 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 4) & 0x3FFF], |
227 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 5) & 0x3FFF]); |
228 | #endif |
229 | } |
230 | |
231 | } |
232 | } |
233 | else // music track |
234 | { |
235 | Pico_mcd->scd.Cur_LBA++; |
236 | |
237 | Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA |
238 | Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF; |
239 | |
240 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable |
241 | { |
242 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer |
243 | { |
244 | // CAUTION : lookahead bit not implemented |
245 | |
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246 | //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cp_buf, 2352); |
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247 | } |
248 | } |
249 | } |
250 | |
251 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable |
252 | { |
253 | Pico_mcd->cdc.STAT.B.B0 = 0x80; |
254 | |
255 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x10) // determine form bit form sub header ? |
256 | { |
257 | Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x08; |
258 | } |
259 | else |
260 | { |
261 | Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x0C; |
262 | } |
263 | |
264 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x02) Pico_mcd->cdc.STAT.B.B3 = 0x20; // ECC done |
265 | else Pico_mcd->cdc.STAT.B.B3 = 0x00; // ECC not done |
266 | |
267 | if (Pico_mcd->cdc.IFCTRL & 0x20) |
268 | { |
269 | if (Pico_mcd->s68k_regs[0x33] & (1<<5)) |
270 | { |
271 | dprintf("cdc dec irq 5"); |
272 | SekInterruptS68k(5); |
273 | } |
274 | |
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275 | Pico_mcd->cdc.IFSTAT &= ~0x20; // DEC interrupt happen |
276 | Pico_mcd->cdc.Decode_Reg_Read = 0; // Reset read after DEC int |
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277 | } |
278 | } |
279 | |
280 | |
281 | return 0; |
282 | } |
283 | |
284 | |
285 | int FILE_Play_CD_LBA(void) |
286 | { |
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287 | int index = Pico_mcd->scd.Cur_Track - 1; |
288 | Pico_mcd->m.audio_track = index; |
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289 | |
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290 | cdprintf("Play track #%i", Pico_mcd->scd.Cur_Track); |
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291 | |
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292 | if (Pico_mcd->TOC.Tracks[index].F == NULL) |
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293 | { |
294 | return 1; |
295 | } |
296 | |
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297 | if (Pico_mcd->TOC.Tracks[index].ftype == TYPE_MP3) |
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298 | { |
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299 | int pos1024 = 0; |
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300 | int Track_LBA_Pos = Pico_mcd->scd.Cur_LBA - Track_to_LBA(Pico_mcd->scd.Cur_Track); |
301 | if (Track_LBA_Pos < 0) Track_LBA_Pos = 0; |
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302 | if (Track_LBA_Pos) |
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303 | pos1024 = Track_LBA_Pos * 1024 / Pico_mcd->TOC.Tracks[index].Length; |
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304 | |
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305 | mp3_start_play(Pico_mcd->TOC.Tracks[index].F, pos1024); |
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306 | } |
307 | else |
308 | { |
309 | return 3; |
310 | } |
311 | |
312 | return 0; |
313 | } |
314 | |