max = 0;
for (y = 0; y < img->frame->height; y++) {
for (x = 0; x < img->frame->width; x++) {
- int p = GET_PIXEL_COMP(img->frame, x, y, 2);
+ int p0 = GET_PIXEL_COMP(img->frame, x, y, 1);
+ int p1 = GET_PIXEL_COMP(img->frame, x, y, 2);
+ int p = p0 << 8 | p1;
max = FFMAX(max, p);
}
}
if (gimg->size_reduction > 0) {
int group_x = x >> gimg->size_reduction;
int group_y = y >> gimg->size_reduction;
- group = GET_PIXEL_COMP(gimg->frame, group_x, group_y, 2);
+ int g0 = GET_PIXEL_COMP(gimg->frame, group_x, group_y, 1);
+ int g1 = GET_PIXEL_COMP(gimg->frame, group_x, group_y, 2);
+ group = g0 << 8 | g1;
}
return &img->huffman_groups[group * HUFFMAN_CODES_PER_META_CODE];