mirror
/
ssdv
kopia lustrzana https://github.com/fsphil/ssdv
1
0
Forkuj 0
Kod Zgłoszenia Projekty Wydania Wiki Aktywność

Check for too many MCU blocks in source image

pull/4/head
Philip Heron 2012-02-27 21:37:10 +00:00
rodzic 87c302a878
commit b1b314cdfc
1 zmienionych plików z 13 dodań i 5 usunięć
Pokaż statystyki Ściągnij plik aktualizacji Ściągnij plik porównania Expand all files Collapse all files

18
ssdv.c
Wyświetl plik

@ -689,13 +689,21 @@ static char ssdv_have_marker_data(ssdv_t *s)
/* Calculate number of MCU blocks in this image */
switch(s->mcu_mode)
{
case 0: s->mcu_count = (s->width >> 4) * (s->height >> 4); break;
case 1: s->mcu_count = (s->width >> 4) * (s->height >> 3); break;
case 2: s->mcu_count = (s->width >> 3) * (s->height >> 4); break;
case 3: s->mcu_count = (s->width >> 3) * (s->height >> 3); break;
case 0: l = (s->width >> 4) * (s->height >> 4); break;
case 1: l = (s->width >> 4) * (s->height >> 3); break;
case 2: l = (s->width >> 3) * (s->height >> 4); break;
case 3: l = (s->width >> 3) * (s->height >> 3); break;
}
fprintf(stderr, "MCU blocks: %i\n", s->mcu_count);
fprintf(stderr, "MCU blocks: %i\n", l);
if(l > 0xFFFF)
{
fprintf(stderr, "Error: Maximum number of MCU blocks is 65535\n");
return(SSDV_ERROR);
}
s->mcu_count = l;
break;