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avcodec/bitstream: fill invalid vlc tables entries as last pass instead of first
This avoids writing entries twice Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -174,11 +174,6 @@ static int build_table(VLC *vlc, int table_nb_bits, int nb_codes,
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return table_index;
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table = &vlc->table[table_index];
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for (i = 0; i < table_size; i++) {
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table[i][1] = 0; //bits
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table[i][0] = -1; //codes
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}
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/* first pass: map codes and compute auxiliary table sizes */
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for (i = 0; i < nb_codes; i++) {
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n = codes[i].bits;
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@ -237,6 +232,12 @@ static int build_table(VLC *vlc, int table_nb_bits, int nb_codes,
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i = k-1;
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}
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}
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for (i = 0; i < table_size; i++) {
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if (table[i][1] == 0) //bits
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table[i][0] = -1; //codes
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}
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return table_index;
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}
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