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Increase verbosity required to warn about bit length overflow.

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When debugging the Huffman coding would warn about resulting codes
greater than 15 bits in length. This is handled properly, and is
not uncommon. This increases the verbosity of the warning by one,
so that it is not displayed by default.
This commit is contained in:
Mark Adler 2016-11-20 11:36:15 -08:00
parent 37281ac222
commit 21c66cd5ac
1 changed files with 2 additions and 2 deletions
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4
trees.c
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@ -525,7 +525,7 @@ local void gen_bitlen(s, desc)
} }
if (overflow == 0) return; if (overflow == 0) return;
Trace((stderr,"\nbit length overflow\n")); Tracev((stderr,"\nbit length overflow\n"));
/* This happens for example on obj2 and pic of the Calgary corpus */ /* This happens for example on obj2 and pic of the Calgary corpus */
/* Find the first bit length which could increase: */ /* Find the first bit length which could increase: */
@ -552,7 +552,7 @@ local void gen_bitlen(s, desc)
m = s->heap[--h]; m = s->heap[--h];
if (m > max_code) continue; if (m > max_code) continue;
if ((unsigned) tree[m].Len != (unsigned) bits) { if ((unsigned) tree[m].Len != (unsigned) bits) {
Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits)); Tracev((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
s->opt_len += ((ulg)bits - tree[m].Len) * tree[m].Freq; s->opt_len += ((ulg)bits - tree[m].Len) * tree[m].Freq;
tree[m].Len = (ush)bits; tree[m].Len = (ush)bits;
} }