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tiff2pdf.c: properly calculate datasize when saving to JPEG YCbCr

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fixes #220
This commit is contained in:
Thomas Bernard 2020-11-14 12:53:01 +00:00 committed by Even Rouault
parent 2e822691d7
commit 7be2e452dd
1 changed files with 11 additions and 3 deletions
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8
tools/tiff2pdf.c
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@ -2087,10 +2087,18 @@ void t2p_read_tiff_size(T2P* t2p, TIFF* input){
#endif
(void) 0;
}
#ifdef JPEG_SUPPORT
if(t2p->pdf_compression == T2P_COMPRESS_JPEG
&& t2p->tiff_photometric == PHOTOMETRIC_YCBCR) {
k = checkMultiply64(TIFFNumberOfStrips(input), TIFFStripSize(input), t2p);
} else
#endif
{
k = checkMultiply64(TIFFScanlineSize(input), t2p->tiff_length, t2p);
if(t2p->tiff_planar==PLANARCONFIG_SEPARATE){
k = checkMultiply64(k, t2p->tiff_samplesperpixel, t2p);
}
}
if (k == 0) {
/* Assume we had overflow inside TIFFScanlineSize */
t2p->t2p_error = T2P_ERR_ERROR;