52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
#include "decode.h"
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#include <stdio.h>
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#include <stdbool.h>
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int decode_main(int argc, char* argv[])
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{
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bool decoding = true;
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FILE *input_file = fopen(argv[2], "rb");
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if (input_file == NULL) {
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fprintf(stderr, "Error opening input file: %s\n", argv[2]);
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return 1;
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}
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FILE *output_file = fopen(argv[3], "wb");
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if (output_file == NULL) {
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fprintf(stderr, "Error opening output file: %s\n", argv[3]);
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fclose(input_file);
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return 1;
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}
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while (decoding)
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{
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// Read data
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unsigned char data[1024];
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unsigned char buffer_High[sizeof(data)/2];
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unsigned char buffer_Low[sizeof(data)/2];
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size_t bytes_read = fread(&data, 1, sizeof(data), input_file);
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for (size_t i = 0; i < bytes_read; i++) {
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buffer_High[i] = data[i + (sizeof(data)/2)];
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buffer_Low[i] = data[i];
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}
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if (bytes_read == 0) {
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if (feof(input_file)) {
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decoding = false; // eof reached
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} else {
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fprintf(stderr, "Error reading from input file\n");
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fclose(input_file);
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fclose(output_file);
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return 1;
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}
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}
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// Decode data
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unsigned char decoded_data[sizeof(data)];
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decoded_data[sizeof(data)] = decode_combine_nibbles(*buffer_High, *buffer_Low);
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// Write data
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fwrite(decoded_data, 1, bytes_read, output_file);
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}
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return 0;
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}
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