Miguel Ruiz / Mbed 2 deprecated H261_encoder

JPEG compressor

Dependencies:   SDL_lib SX1276Lib mbed

encoder.cpp@1:f0c646dfe574, 2016-09-22 (annotated)

Committer:
miruga27
Date:
Thu Sep 22 00:01:55 2016 +0000
Revision:
1:f0c646dfe574
Parent:
0:1076a8b67c6c
Child:
2:f256eebcade8
H261_encoder

Who changed what in which revision?

UserRevisionLine numberNew contents of line
miruga27 1:f0c646dfe574 1
miruga27 0:1076a8b67c6c 2 //Author: Miguel Ruiz García
miruga27 0:1076a8b67c6c 3 //Company: University of Cantabria. 2016
miruga27 0:1076a8b67c6c 4 //mail: mrg47@alumnos.unican.es
miruga27 0:1076a8b67c6c 5
miruga27 0:1076a8b67c6c 6 #include "mbed.h"
miruga27 0:1076a8b67c6c 7 #include "stdio.h"
miruga27 0:1076a8b67c6c 8 #include <math.h>
miruga27 0:1076a8b67c6c 9 #include "SDL_lib/SDL.h"
miruga27 0:1076a8b67c6c 10 #include "functions.h"
miruga27 1:f0c646dfe574 11 //#include "lora2.h"
miruga27 1:f0c646dfe574 12 #include "lora_tansc.h"
miruga27 0:1076a8b67c6c 13
miruga27 1:f0c646dfe574 14 DigitalOut myled(LED1);
miruga27 0:1076a8b67c6c 15 DigitalIn button(PC_13);
miruga27 1:f0c646dfe574 16
miruga27 0:1076a8b67c6c 17 Serial uart(PA_2, PA_3);
miruga27 1:f0c646dfe574 18
miruga27 0:1076a8b67c6c 19 #define BPS 128000
miruga27 0:1076a8b67c6c 20 #define BITS 8
miruga27 0:1076a8b67c6c 21 #define STOP_BITS 1
miruga27 0:1076a8b67c6c 22
miruga27 0:1076a8b67c6c 23
miruga27 0:1076a8b67c6c 24
miruga27 1:f0c646dfe574 25 int main(int argc, char *argv[]){
miruga27 1:f0c646dfe574 26 Serial pc(USBTX, USBRX);
miruga27 0:1076a8b67c6c 27 pc.baud(BPS);
miruga27 0:1076a8b67c6c 28 pc.format (BITS,SerialBase::None, STOP_BITS) ;
miruga27 0:1076a8b67c6c 29
miruga27 0:1076a8b67c6c 30 myled=1;
miruga27 0:1076a8b67c6c 31 wait (5);
miruga27 0:1076a8b67c6c 32 myled=0;
miruga27 1:f0c646dfe574 33 short int m[HEIGHT][WIDTH][3];
miruga27 0:1076a8b67c6c 34 int i,j,veces=0;
miruga27 1:f0c646dfe574 35
miruga27 1:f0c646dfe574 36 for(veces=0;veces<120;veces++){
miruga27 1:f0c646dfe574 37
miruga27 1:f0c646dfe574 38 myled=0;
miruga27 1:f0c646dfe574 39 for(i=0;i<8;i++){
miruga27 1:f0c646dfe574 40 for(j=0;j<320;j++){
miruga27 0:1076a8b67c6c 41
miruga27 0:1076a8b67c6c 42 while(!pc.readable());
miruga27 1:f0c646dfe574 43 m[i][j][0]=(char)pc.getc();
miruga27 0:1076a8b67c6c 44
miruga27 0:1076a8b67c6c 45 while(!pc.readable());
miruga27 1:f0c646dfe574 46 m[i][j][1]=(char)pc.getc();
miruga27 0:1076a8b67c6c 47 while(!pc.readable());
miruga27 1:f0c646dfe574 48 m[i][j][2]=(char)pc.getc();
miruga27 0:1076a8b67c6c 49
miruga27 0:1076a8b67c6c 50 }
miruga27 0:1076a8b67c6c 51 }
miruga27 0:1076a8b67c6c 52
miruga27 0:1076a8b67c6c 53
miruga27 1:f0c646dfe574 54 myled=1;
miruga27 0:1076a8b67c6c 55
miruga27 0:1076a8b67c6c 56
miruga27 0:1076a8b67c6c 57 rgb_to_yuv(m);
miruga27 0:1076a8b67c6c 58
miruga27 0:1076a8b67c6c 59
miruga27 1:f0c646dfe574 60
miruga27 1:f0c646dfe574 61 int mat[8][8][3];
miruga27 1:f0c646dfe574 62 for(i=0;i<HEIGHT;i+=8){
miruga27 1:f0c646dfe574 63 for(j=0;j<WIDTH;j+=8){
miruga27 0:1076a8b67c6c 64
miruga27 0:1076a8b67c6c 65 int k=0,l=0;
miruga27 0:1076a8b67c6c 66
miruga27 0:1076a8b67c6c 67 for(k=i;k<i+8;k++){
miruga27 0:1076a8b67c6c 68
miruga27 0:1076a8b67c6c 69 for(l=j;l<j+8;l++){
miruga27 0:1076a8b67c6c 70
miruga27 0:1076a8b67c6c 71
miruga27 1:f0c646dfe574 72 mat[k-i][l-j][0]=m[k][l][0];
miruga27 1:f0c646dfe574 73 mat[k-i][l-j][1]=m[k][l][1];
miruga27 1:f0c646dfe574 74 mat[k-i][l-j][2]=m[k][l][2];
miruga27 0:1076a8b67c6c 75
miruga27 0:1076a8b67c6c 76 }
miruga27 0:1076a8b67c6c 77
miruga27 0:1076a8b67c6c 78
miruga27 0:1076a8b67c6c 79 }
miruga27 1:f0c646dfe574 80
miruga27 1:f0c646dfe574 81 DCT(mat,m,i,j);// 'i' 'j' índices de los pixeles en x e y del macrobloque
miruga27 0:1076a8b67c6c 82
miruga27 0:1076a8b67c6c 83 }
miruga27 0:1076a8b67c6c 84
miruga27 0:1076a8b67c6c 85 }
miruga27 0:1076a8b67c6c 86
miruga27 1:f0c646dfe574 87
miruga27 0:1076a8b67c6c 88 cuantizador(m);
miruga27 0:1076a8b67c6c 89
miruga27 1:f0c646dfe574 90
miruga27 0:1076a8b67c6c 91 short int *matriz =(short int *) malloc(sizeof(short int)*HEIGHT*WIDTH*3);
miruga27 0:1076a8b67c6c 92
miruga27 1:f0c646dfe574 93 zig_zag(m,matriz);//OJO!!!!!
miruga27 1:f0c646dfe574 94
miruga27 1:f0c646dfe574 95 short int acumulador[3]={0,0,0};
miruga27 1:f0c646dfe574 96 RLC(matriz,acumulador);
miruga27 0:1076a8b67c6c 97
miruga27 1:f0c646dfe574 98
miruga27 1:f0c646dfe574 99 short int * temp1= (short int *) malloc(sizeof(short int)*acumulador[0]);//reserva de memoria exacta para cada una de las componenetes y u v
miruga27 1:f0c646dfe574 100 short int * temp2= (short int *) malloc(sizeof(short int)*acumulador[1]);
miruga27 1:f0c646dfe574 101 short int * temp3= (short int *) malloc(sizeof(short int)*acumulador[2]);
miruga27 1:f0c646dfe574 102 RLC2(matriz,temp1,temp2,temp3);
miruga27 1:f0c646dfe574 103 free(matriz);
miruga27 1:f0c646dfe574 104
miruga27 1:f0c646dfe574 105 lora(temp1,acumulador[0],temp2,acumulador[1],temp3,acumulador[2]);
miruga27 1:f0c646dfe574 106
miruga27 1:f0c646dfe574 107
miruga27 1:f0c646dfe574 108 free(temp1);
miruga27 1:f0c646dfe574 109 free(temp2);
miruga27 1:f0c646dfe574 110 free(temp3);
miruga27 1:f0c646dfe574 111 while(!pc.writeable());
miruga27 1:f0c646dfe574 112 pc.printf("1");//OJO con ponerlo aqui arriba
miruga27 0:1076a8b67c6c 113
miruga27 0:1076a8b67c6c 114
miruga27 1:f0c646dfe574 115 }
miruga27 0:1076a8b67c6c 116
miruga27 0:1076a8b67c6c 117
miruga27 0:1076a8b67c6c 118 //http://www.martin-gardner.co.uk/how-to-connect-your-old-sd-card-to-an-arduino/
miruga27 0:1076a8b67c6c 119 while(1){
miruga27 0:1076a8b67c6c 120
miruga27 0:1076a8b67c6c 121 myled=1;
miruga27 0:1076a8b67c6c 122 wait(0.2);
miruga27 0:1076a8b67c6c 123 myled=0;
miruga27 0:1076a8b67c6c 124 wait(0.2);
miruga27 0:1076a8b67c6c 125 }
miruga27 0:1076a8b67c6c 126
miruga27 0:1076a8b67c6c 127
miruga27 0:1076a8b67c6c 128 }
miruga27 0:1076a8b67c6c 129