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Fix a bug in ReadHuffmanCode().

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This commit is contained in:
Zoltan Szabadka 2015-09-28 12:37:35 +02:00
parent 3cd3a1066a
commit 10aaa83ffe
1 changed files with 3 additions and 2 deletions
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5
dec/huffman.c
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@ -88,6 +88,7 @@ void BrotliBuildCodeLengthsHuffmanTable(HuffmanCode* table,
offset[bits] = symbol;
bits++;
});
/* Symbols with code length 0 are placed after all other symbols. */
offset[0] = 17;
/* sort symbols by length, by symbol order within each length */
@ -101,8 +102,8 @@ void BrotliBuildCodeLengthsHuffmanTable(HuffmanCode* table,
table_size = 1 << BROTLI_HUFFMAN_MAX_CODE_LENGTH_CODE_LENGTH;
/* special case code with only one value */
if (offset[BROTLI_HUFFMAN_MAX_CODE_LENGTH_CODE_LENGTH] == 0) {
/* Special case: all symbols but one have 0 code length. */
if (offset[0] == 0) {
code.bits = 0;
code.value = (uint16_t)sorted[0];
for (key = 0; key < table_size; ++key) {