SharpMuPDF/mupdf/thirdparty/leptonica/prog/fuzzing/pixa_recog_fuzzer.cc

#include "leptfuzz.h"
#include <sys/types.h>
#include <unistd.h>


extern "C" int
LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
        if(size<10) return 0;

        leptSetStdNullHandler();

        char filename[256];
        sprintf(filename, "/tmp/libfuzzer.pa");
        FILE *fp = fopen(filename, "wb");
        if (!fp) return 0;
        fwrite(data, size, 1, fp);
        fclose(fp);

        PIXA      *pixa1, *pixa2, *pixa3, *pixa4, *pixa5;
        L_RECOG   *recog1, *recog2;
        PIX       *pix1, *pix2, *pix3, *pix4;

        pixa1 = pixaRead(filename);

        recog1 = recogCreateFromPixa(pixa1, 0, 40, 1, 128, 1);

        pixa2 = recogTrainFromBoot(recog1, pixa1, 0.75, 128, 1);

        pixa3 = pixaRemoveOutliers1(pixa1, 0.8, 4, 3, &pix1, &pix2);
        pixa4 = pixaRemoveOutliers2(pixa1, 0.8, 4, &pix3, &pix4);

        recog2 = recogCreateFromPixa(pixa1, 4, 40, 1, 128, 1);
        recogIdentifyMultiple(recog2, pix2, 0, 0, NULL, &pixa5, NULL, 1);

        pixDestroy(&pix1);
        pixDestroy(&pix2);
        pixDestroy(&pix3);
        pixDestroy(&pix4);
        recogDestroy(&recog1);
        recogDestroy(&recog2);
        pixaDestroy(&pixa1);
        pixaDestroy(&pixa2);
        pixaDestroy(&pixa3);
        pixaDestroy(&pixa4);
        pixaDestroy(&pixa5);
        unlink(filename);
        return 0;
}