9b5fbc9b5e
- Add decode_page_content_streams() function for per-page lazy decode - Update extract_page_from_dict() to support lazy stream decoding - Modify extract_pdf() and extract_pdf_ndjson() to enable lazy decoding - Fix borrow checker issue in LazyPageIter::next() This ensures content streams are decoded lazily per page and dropped immediately after processing, keeping peak RSS flat across page count. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "../../crates/pdftract-libpdftract/include/pdftract.h"
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int main(void) {
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const char *pdf_path = "/tmp/test_stream.pdf";
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FILE *f = fopen(pdf_path, "w");
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const char *pdf_data =
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"%PDF-1.4\n"
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"1 0 obj<</Type/Catalog/Pages 2 0 R>>endobj\n"
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"2 0 obj<</Type/Pages/Kids[3 0 R]/Count 1>>endobj\n"
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"3 0 obj<</Type/Page/Parent 2 0 R/MediaBox[0 0 612 792]/Resources<</Font<</F1<</Type/Font/Subtype/Type1/BaseFont/Helvetica>>>>>>>>>>endobj\n"
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"xref\n"
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"0 4\n"
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"0000000000 65535 f\n"
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"0000000009 00000 n\n"
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"0000000052 00000 n\n"
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"0000000109 00000 n\n"
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"trailer<</Size 4/Root 1 0 R>>\n"
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"startxref\n"
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"206\n"
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"%%EOF\n";
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fwrite(pdf_data, 1, strlen(pdf_data), f);
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fclose(f);
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printf("Opening stream...\n");
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void *handle = pdftract_extract_stream_open(pdf_path, "{}");
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printf("Handle: %p\n", (void*)handle);
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if (handle == NULL) {
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printf("Failed to open stream\n");
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return 1;
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}
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printf("Getting first page...\n");
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char *page = pdftract_stream_next(handle);
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printf("Page: %p\n", (void*)page);
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if (page) {
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printf("Page content: %.100s\n", page);
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pdftract_free(page);
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}
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printf("Closing stream...\n");
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pdftract_stream_close(handle);
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remove(pdf_path);
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printf("Done\n");
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return 0;
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}
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