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Handle duplicated image in HN.

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Signed-off-by: yzrh <yzrh@noema.org>
This commit is contained in:
yzrh 2023-01-02 15:38:45 +00:00
parent 000405693e
commit 7d9d658461
1 changed files with 24 additions and 2 deletions
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26
src/cnki_pdf.c
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@ -500,6 +500,8 @@ cnki_pdf_hn(cnki_t **param)
char buf[64];
pdf_object_t *tmp;
int cnt = 0;
int *root_kid = malloc((*param)->file_stat->page * sizeof(int));
@ -971,6 +973,28 @@ cnki_pdf_hn(cnki_t **param)
margin_y = (3507.874 - dim[1]) / 2;
}
/* Remove duplicated image, ptr->image_length is sometimes squared */
for (int i = 1; i < ptr->image_length; i++) {
if ((ptr->image_data[i].x > 0 || ptr->image_data[i].y > 0) &&
dim[i * 2] < dim[0] && dim[i * 2 + 1] < dim[1])
continue;
for (int j = i; j < ptr->image_length; j++) {
pdf_get_obj(&pdf, ids[j], &tmp);
pdf_obj_del(&pdf, ids[j]);
tmp->next = NULL;
pdf_obj_destroy(&tmp);
dim[j * 2] = -1;
dim[j * 2 + 1] = -1;
pdf_obj_append(&pdf, ids[j], NULL, NULL, NULL, 0);
}
break;
}
for (int i = 0; i < ptr->image_length; i++) {
if (dim[i * 2] <= 0 || dim[i * 2 + 1] <= 0)
continue;
@ -1150,8 +1174,6 @@ cnki_pdf_hn(cnki_t **param)
return 1;
}
pdf_object_t *tmp;
/* Add /Parent to page object */
for (int i = 0; i < (*param)->file_stat->page; i++) {
if (pdf_get_obj(&pdf, root_kid[i], &tmp) != 0) {