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huffman occurences dirty hack working

This commit is contained in:
Christoph J. Scherr 2022-11-26 01:15:02 +01:00
parent 7acfb7b20c
commit cc94c88847
1 changed files with 17 additions and 2 deletions
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19
huffman/huffman.c
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@ -103,7 +103,7 @@ int main(int argc, char *argv[]) {
// frequency analysis
uint8_t buf[512];
uint8_t* buf = malloc(filelen);
// dump start of file if debugging
// FIXME add conditions if the part to print is smaller than 512B
@ -130,7 +130,22 @@ int main(int argc, char *argv[]) {
// }
// TODO calculate occurences
// FIXME this loads the file into RAM completely. Loading a too big file would eat all memory of the system.
// This is a dirty hack of an algorithm.
for(int i = 0; i < filelen; i++) {
fread(buf+i, 1, 1, fptrR);
}
// now go through all of the stored bytes in the buffer and count the occurences.
for(int i = 0; i < filelen; i++) {
occurences[*(buf+i)]++; // FIXME this might get the value of the bytes but +1, not sure about the logic!
}
// holy shit i think the dirty hack is working
// well, at least for smaller files.
// SEGVAULT for the 10G file, 1G works.
if(debug){
printf("Occurences (Hex):\n");
for(int i=0;i<256;i++){