void dec_run_length(FILE *in_fp)
{
printf("Applying run-length decoding...\n");
for(curr_channel=0; curr_channel<input_file_header->numChannels; curr_channel++) {
bdestroy(&data_buffer[curr_channel]);
binit(&data_buffer[curr_channel], output_buffer[curr_channel].n_bytes*8-(8-output_buffer[curr_channel].bits_last));
bit_buffer_cpy(&data_buffer[curr_channel], &output_buffer[curr_channel], output_buffer[curr_channel].n_bytes*8-(8-output_buffer[curr_channel].bits_last));
bdestroy(&output_buffer[curr_channel]);
binit(&output_buffer[curr_channel], input_file_header->subchunk2size);
if(sec_enc==RUN_LENGTH){
rl_decode(max_bits[curr_channel]+1, nbits_code[curr_channel], nbits_run[curr_channel], &data_buffer[curr_channel], &output_buffer[curr_channel]);
}else{
rl_decode(input_file_header->bitsPerSample, nbits_code[curr_channel], nbits_run[curr_channel], &data_buffer[curr_channel], &output_buffer[curr_channel]);
}
/*bprint(&output_buffer[curr_channel]);*/
}
}
int main(int argc, char **argv) {
FILE *input, *output;
int input_size, output_size;
char *input_buffer, *output_buffer;
/* If we didn't get enough arguments, complain. */
if (argc != 3) {
usage(argv[0]);
return 1;
}
input = fopen(argv[1], "rb");
if (input == NULL) {
printf("Couldn't open input file \"%s\"!\n", argv[1]);
return 2;
}
output = fopen(argv[2], "wb");
if (output == NULL) {
printf("Couldn't open output file \"%s\"!\n", argv[2]);
return 3;
}
printf("Decoding file \"%s\" into file \"%s\".\n", argv[1], argv[2]);
/* Load the input file into a buffer in memory. */
fseek(input, 0, SEEK_END);
input_size = ftell(input);
fseek(input, 0, SEEK_SET);
input_buffer = malloc(input_size + 1);
fread(input_buffer, sizeof(unsigned char), input_size, input);
/* Decode the input file, and write the resutls to the output file. */
output_buffer = rl_decode(input_buffer, input_size, &output_size);
fwrite(output_buffer, sizeof(unsigned char), output_size, output);
printf("All done!\n");
fclose(output);
fclose(input);
free(input_buffer);
free(output_buffer);
return 0;
}
