Commit a7d90708a781fc366cf2037a70f65f45197408a2
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9517040e
analyse fichier MIDI
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1 | +#include <stdio.h> | ||
2 | +#include <stdlib.h> | ||
3 | + | ||
4 | +int main(int argc,char *argv[]){ | ||
5 | + if(argc<2) exit(EXIT_FAILURE); | ||
6 | + char *nom=argv[1]; | ||
7 | + FILE *fichier=fopen(nom,"r"); | ||
8 | + if(fichier==NULL) exit(EXIT_FAILURE); | ||
9 | + unsigned char c[2]; | ||
10 | + | ||
11 | + | ||
12 | + // HEADER | ||
13 | + fread(c,2,1,fichier); | ||
14 | + if((c[0]==0x4d) && (c[1]==0x54)) | ||
15 | + { | ||
16 | + fread(c,2,1,fichier); | ||
17 | + printf("Fichier MIDI détecté.\n"); | ||
18 | + fread(c,2,1,fichier); | ||
19 | + | ||
20 | + | ||
21 | + //longueur header | ||
22 | + int longueur=0; | ||
23 | + longueur=(c[1] << 16) + (c[0] << 32); | ||
24 | + fread(c,2,1,fichier); | ||
25 | + longueur=longueur + c[1] + (c[0] << 8); | ||
26 | + printf("taille header = %d \n",longueur); | ||
27 | + | ||
28 | + | ||
29 | + //format header | ||
30 | + fread(c,2,1,fichier); | ||
31 | + if(c[1]==0x00) printf("le format est : single track\n"); | ||
32 | + if(c[1]==0x01) printf("le format est : multiple track\n"); | ||
33 | + if(c[1]==0x02) printf("le format est : multiple song\n"); | ||
34 | + | ||
35 | + | ||
36 | + //nbre de morceaux | ||
37 | + fread(c,2,1,fichier); | ||
38 | + int n = 0; | ||
39 | + n=c[1] + (c[0] << 8); | ||
40 | + printf("le nombre de gros morceaux est : %d \n", n); | ||
41 | + | ||
42 | + | ||
43 | + //nbre ticks/beat | ||
44 | + fread(c,2,1,fichier); | ||
45 | + int ticks = 0; | ||
46 | + ticks = c[1] + (c[0] << 8); | ||
47 | + printf("nombre de ticks/beat = %d \n",ticks); | ||
48 | + | ||
49 | + | ||
50 | + //Dans un morceau RECUPERATION DE LA TAILLE DE LA CHANSON à partir du Mrtk | ||
51 | + fread(c,2,1,fichier); | ||
52 | + int longueur_track =0; | ||
53 | + if ((c[0]==0x4d) && (c[1]==0x54)) | ||
54 | + { | ||
55 | + printf("morceau?\n"); | ||
56 | + fread(c,2,1,fichier); | ||
57 | + if ((c[0]==0x72) && (c[1]==0x6b)) { printf("oui\n");} | ||
58 | + | ||
59 | + fread(c,2,1,fichier); | ||
60 | + longueur_track = (int)(c[1] << 16) + (int)(c[0] << 32); | ||
61 | + fread(c,2,1,fichier); | ||
62 | + longueur_track = longueur_track + c[1] + (c[0] << 8); | ||
63 | + printf("la longueur du morceau est de : %d octets \n", longueur_track); | ||
64 | + } | ||
65 | + | ||
66 | + //Track event | ||
67 | + int fin_track = 0; | ||
68 | + while(fin_track < longueur_track) | ||
69 | + { | ||
70 | + fin_track++; | ||
71 | + //recup timing | ||
72 | + fread(c,1,1,fichier); | ||
73 | + int time= c[0]; | ||
74 | + if(c[0]>128) | ||
75 | + { | ||
76 | + unsigned char k; | ||
77 | + fread(&k,1,1,fichier); | ||
78 | + time = ((c[0]&0x0F)<<8) + k; | ||
79 | + printf("moment evenement : %d\n",time); | ||
80 | + } | ||
81 | + printf("moment evenement : %d\n",time); | ||
82 | + | ||
83 | + | ||
84 | + //QUEL TYPE EVENEMENT | ||
85 | + fread(c,1,1,fichier); | ||
86 | + | ||
87 | + | ||
88 | + | ||
89 | + //meta evevenemnt | ||
90 | + if (c[0]==0xff) | ||
91 | + { | ||
92 | + printf("meta evenement : \n"); | ||
93 | + fread(c,2,1,fichier); | ||
94 | + if(c[0]==0x00) | ||
95 | + {printf("le numéro de la sequence est: \n");} | ||
96 | + if(c[0]==0x01) | ||
97 | + {printf("evenement text \n");} | ||
98 | + if(c[0]==0x02) | ||
99 | + {printf("copyright notice\n");} | ||
100 | + if(c[0]==0x03) | ||
101 | + {printf("sequence or track name \n");} | ||
102 | + if(c[0]==0x04) | ||
103 | + {printf("instrument name \n");} | ||
104 | + if(c[0]==0x05) | ||
105 | + {printf("lyric text \n");} | ||
106 | + if(c[0]==0x06) | ||
107 | + {printf("marker text \n");} | ||
108 | + if(c[0]==0x07) | ||
109 | + {printf("cue point \n");} | ||
110 | + if(c[0]==0x20) | ||
111 | + {printf("MIDI channel \n");} | ||
112 | + if(c[0]==0x2f) | ||
113 | + {printf("end of track \n");} | ||
114 | + if(c[0]==0x51) | ||
115 | + {printf("tempo setting \n");} | ||
116 | + if(c[0]==0x54) | ||
117 | + {printf("SMPTE offset \n");} | ||
118 | + if(c[0]==0x58) | ||
119 | + {printf("Time signature \n");} | ||
120 | + if(c[0]==0x59) | ||
121 | + {printf("Key signature \n");} | ||
122 | + if(c[0]==0x7f) | ||
123 | + {printf("Sequencer specific event \n");} | ||
124 | + int nbre_oct = c[1]; | ||
125 | + printf("nbre oc = %d \n",nbre_oct); | ||
126 | + int p = 0; | ||
127 | + while(p != nbre_oct) | ||
128 | + { | ||
129 | + p++; | ||
130 | + fread(c,1,1,fichier); | ||
131 | + } | ||
132 | + } | ||
133 | + | ||
134 | + //sys event inutile, on sarrete donc quand on trouve le marqueur de fin (0xf7) | ||
135 | + if((c[0]==0xf0) | (c[0]==0xf1) | (c[0]==0xf2) | (c[0]==0xf3) |(c[0]==0xf4) | (c[0]==0xf5) | (c[0]==0xf6) | (c[0]==0xf7) | (c[0]==0xf8) | (c[0]==0xf9) | (c[0]==0xfa) | (c[0]==0xfb) | (c[0]==0xfc) | (c[0]==0xfd) | (c[0]==0xfe)) | ||
136 | + { | ||
137 | + unsigned char d; | ||
138 | + printf("sys event\n"); | ||
139 | + fread(&d,1,1,fichier); | ||
140 | + while(d!= 0xf7) | ||
141 | + { | ||
142 | + fread(&d,1,1,fichier); | ||
143 | + | ||
144 | + } | ||
145 | + } | ||
146 | + | ||
147 | + //MIDI event | ||
148 | + //Note off | ||
149 | + if((c[0]==0x80) | (c[0]==0x81) | (c[0]==0x82) | (c[0]==0x83) |(c[0]==0x84) | (c[0]==0x85) | (c[0]==0x86) | (c[0]==0x87) | (c[0]==0x88) | (c[0]==0x89) | (c[0]==0x8a) | (c[0]==0x8b) | (c[0]==0x8c) | (c[0]==0x8d) | (c[0]==0x8e) | (c[0]==0x8f)) | ||
150 | + { | ||
151 | + fread(c,2,1,fichier); | ||
152 | + printf("Note off : %d, intensite : %d\n", c[0], c[1]); | ||
153 | + | ||
154 | + } | ||
155 | + //Note on | ||
156 | + if((c[0]==0x90) | (c[0]==0x91) | (c[0]==0x92) | (c[0]==0x93) |(c[0]==0x94) | (c[0]==0x95) | (c[0]==0x96) | (c[0]==0x97) | (c[0]==0x98) | (c[0]==0x99) | (c[0]==0x9a) | (c[0]==0x9b) | (c[0]==0x9c) | (c[0]==0x9d) | (c[0]==0x9e) | (c[0]==0x9f)) | ||
157 | + { | ||
158 | + fread(c,2,1,fichier); | ||
159 | + printf("Note on : %d, intensite : %d\n", c[0], c[1]); | ||
160 | + | ||
161 | + } | ||
162 | + | ||
163 | + //aftertouch | ||
164 | + if((c[0]==0xa0) | (c[0]==0xa1) | (c[0]==0xa2) | (c[0]==0xa3) |(c[0]==0xa4) | (c[0]==0xa5) | (c[0]==0xa6) | (c[0]==0xa7) | (c[0]==0xa8) | (c[0]==0xa9) | (c[0]==0xaa) | (c[0]==0xab) | (c[0]==0xac) | (c[0]==0xad) | (c[0]==0xae) | (c[0]==0xaf)) | ||
165 | + { | ||
166 | + fread(c,2,1,fichier); | ||
167 | + | ||
168 | + } | ||
169 | + //Continuous controller | ||
170 | + if((c[0]==0xb0) | (c[0]==0xb1) | (c[0]==0xb2) | (c[0]==0xb3) |(c[0]==0xb4) | (c[0]==0xb5) | (c[0]==0xb6) | (c[0]==0xb7) | (c[0]==0xb8) | (c[0]==0xb9) | (c[0]==0xba) | (c[0]==0xbb) | (c[0]==0xbc) | (c[0]==0xbd) | (c[0]==0xbe) | (c[0]==0xbf)) | ||
171 | + { | ||
172 | + fread(c,2,1,fichier); | ||
173 | + | ||
174 | + } | ||
175 | + //Patch change | ||
176 | + if((c[0]==0xc0) | (c[0]==0xc1) | (c[0]==0xc2) | (c[0]==0xc3) |(c[0]==0xc4) | (c[0]==0xc5) | (c[0]==0xc6) | (c[0]==0xc7) | (c[0]==0xc8) | (c[0]==0xc9) | (c[0]==0xca) | (c[0]==0xcb) | (c[0]==0xcc) | (c[0]==0xcd) | (c[0]==0xce) | (c[0]==0xcf)) | ||
177 | + { | ||
178 | + fread(c,2,1,fichier); | ||
179 | + | ||
180 | + } | ||
181 | + //Channel Pressure | ||
182 | + if((c[0]==0xd0) | (c[0]==0xd1) | (c[0]==0xd2) | (c[0]==0xd3) |(c[0]==0xd4) | (c[0]==0xd5) | (c[0]==0xd6) | (c[0]==0xd7) | (c[0]==0xd8) | (c[0]==0xd9) | (c[0]==0xda) | (c[0]==0xdb) | (c[0]==0xdc) | (c[0]==0xdd) | (c[0]==0xde) | (c[0]==0xdf)) | ||
183 | + { | ||
184 | + fread(c,1,1,fichier); | ||
185 | + | ||
186 | + } | ||
187 | + //Pitch bend | ||
188 | + if((c[0]==0xe0) | (c[0]==0xe1) | (c[0]==0xe2) | (c[0]==0xe3) |(c[0]==0xe4) | (c[0]==0xe5) | (c[0]==0xe6) | (c[0]==0xe7) | (c[0]==0xe8) | (c[0]==0xe9) | (c[0]==0xea) | (c[0]==0xeb) | (c[0]==0xec) | (c[0]==0xed) | (c[0]==0xee) | (c[0]==0xef)) | ||
189 | + { | ||
190 | + fread(c,2,1,fichier); | ||
191 | + } | ||
192 | + } | ||
193 | + | ||
194 | + } | ||
195 | + else | ||
196 | + { | ||
197 | + printf("Mauvais format de fichier, prendre du MIDI\n"); | ||
198 | + } | ||
199 | + | ||
200 | + | ||
201 | + | ||
202 | + | ||
203 | + printf("\n"); | ||
204 | + return 0; | ||
205 | +} |