ana_midi.c 7.79 KB
#include <stdio.h>
#include <stdlib.h>

int main(int argc,char *argv[]){
        if(argc<2) exit(EXIT_FAILURE);
        char *nom=argv[1];
        FILE *fichier=fopen(nom,"r");
        if(fichier==NULL) exit(EXIT_FAILURE);
        unsigned char c[2];

	
		// HEADER
	fread(c,2,1,fichier);
	if((c[0]==0x4d) && (c[1]==0x54))
                {
                        fread(c,2,1,fichier);
			printf("Fichier MIDI détecté.\n");
                        fread(c,2,1,fichier);

 
                        	//longueur header
			int longueur=0;
                        longueur=(c[1] << 16) + (c[0] << 32);
                        fread(c,2,1,fichier);
                        longueur=longueur + c[1] + (c[0] << 8);
                        printf("taille header = %d \n",longueur);


				//format header
			fread(c,2,1,fichier);
			if(c[1]==0x00) printf("le format est : single track\n");
		        if(c[1]==0x01) printf("le format est : multiple track\n");
        		if(c[1]==0x02) printf("le format est : multiple song\n");


				//nbre de morceaux
			fread(c,2,1,fichier);
			int n = 0;
       			n=c[1] + (c[0] << 8);
         		printf("le nombre de gros morceaux est : %d \n", n);


                		//nbre ticks/beat
			fread(c,2,1,fichier);
			int ticks = 0;
        		ticks = c[1] + (c[0] << 8);
		        printf("nombre de ticks/beat = %d \n",ticks);
		

					//Dans un morceau RECUPERATION DE LA TAILLE DE LA CHANSON à partir du Mrtk
        		fread(c,2,1,fichier);
        		if ((c[0]==0x4d) && (c[1]==0x54)) 
                		{
                        		printf("morceau?\n");
                        		fread(c,2,1,fichier);
	                   		if ((c[0]==0x72) && (c[1]==0x6b)) { printf("oui\n");} 
				
					fread(c,2,1,fichier);
                        		int longueur_track = (c[1] << 16) + (c[0] << 32);
					fread(c,2,1,fichier);
                        		longueur_track = longueur_track + c[1] + (c[0] << 8);
                        		printf("la longueur du morceau est de : %d octets \n", longueur_track);
                		}
			
					//Track event

			//while(1)
			//{
				//recup timing
				fread(c,1,1,fichier);
				int time= c[0];
				if(c[0]>128)
					{
						unsigned char k;
						fread(&k,1,1,fichier);
						time = ((c[0]&0x0F)<<8) + k;			
						printf("moment evenement : %d\n",time);
					}
				printf("moment evenement : %d\n",time);
				

					//QUEL TYPE EVENEMENT
				fread(c,1,1,fichier);



				//meta evevenemnt
				if (c[0]==0xff)
                		{
		                        printf("meta evenement : \n");
                        		fread(c,2,1,fichier);
                        		if(c[0]==0x00)
                                		{printf("le numéro de la sequence est: \n");}
                        		if(c[0]==0x01)
                                		{printf("evenement text \n");}
                        		if(c[0]==0x02)
                                		{printf("copyright notice\n");}
                        		if(c[0]==0x03)
                                		{printf("sequence or track name \n");}
                        		if(c[0]==0x04)
                                		{printf("instrument name \n");}
                        		if(c[0]==0x05)
                                		{printf("lyric text \n");}
                       			if(c[0]==0x06)
                                		{printf("marker text \n");}
                        		if(c[0]==0x07)
						{printf("cue point \n");}
                        		if(c[0]==0x20)
                                		{printf("MIDI channel \n");}
                        		if(c[0]==0x2f)
                                		{printf("end of track \n");}
                        		if(c[0]==0x51)
                                		{printf("tempo setting \n");}
                        		if(c[0]==0x54)
                                		{printf("SMPTE offset \n");}
                        		if(c[0]==0x58)
                                		{printf("Time signature \n");}
                        		if(c[0]==0x59)
                                		{printf("Key signature \n");}
                        		if(c[0]==0x7f)
                                		{printf("Sequencer specific event \n");}

                		}
				
				//sys event inutile, on sarrete donc quand on trouve le marqueur de fin (0xf7)
				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))
					{
						unsigned char d;
						fread(&d,1,1,fichier);
						while(d!= 0xf7)
						{
							fread(&d,1,1,fichier);

						}
					}

				//MIDI event
					//Note off
				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))
				{
					fread(c,2,1,fichier);
					printf("Note off : %d, intensite : %d\n", c[0], c[1]);

				}	
					//Note on
				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))
				{
                                        fread(c,2,1,fichier);
                                        printf("Note on : %d, intensite : %d\n", c[0], c[1]);

                                }

					//aftertouch
				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))
				{
                                        fread(c,2,1,fichier);
                                        printf("Note on : %d, intensite : %d\n", c[0], c[1]);

                                }
					//Continuous controller
				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))
				{
                                        fread(c,2,1,fichier);
                                        printf("Note on : %d, intensite : %d\n", c[0], c[1]);

                                }
					//Patch change
				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))
				{
                                        fread(c,2,1,fichier);
                                        printf("Note on : %d, intensite : %d\n", c[0], c[1]);

                                }				
					//Channel Pressure
				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))
				{
                                        fread(c,2,1,fichier);
                                        printf("Note on : %d, intensite : %d\n", c[0], c[1]);

                                }
					//Pitch bend
				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))
				{
                                        fread(c,2,1,fichier);
                                        printf("Note on : %d, intensite : %d\n", c[0], c[1]);

                                }	
								
			//}		
			printf("cc");

		}
	else
	{
		printf("Mauvais format de fichier, prendre du MIDI\n");
	}
	
   	

        
        printf("\n");
        return 0;
}