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18 lines
532 B
18 lines
532 B
6 years ago
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diff --git a/jdmarker.c b/jdmarker.c
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index 737a17c..381835b 100644
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--- a/jdmarker.c
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+++ b/jdmarker.c
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@@ -348,6 +348,12 @@ get_sos (j_decompress_ptr cinfo)
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TRACEMS3(cinfo, 1, JTRC_SOS_COMPONENT, cc,
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compptr->dc_tbl_no, compptr->ac_tbl_no);
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+
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+ /* This CSi (cc) should differ from the previous CSi */
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+ for (ci = 0; ci < i; ci++) {
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+ if (cinfo->cur_comp_info[ci] == compptr)
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+ ERREXIT1(cinfo, JERR_BAD_COMPONENT_ID, cc);
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+ }
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}
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/* Collect the additional scan parameters Ss, Se, Ah/Al. */
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