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Code Issues Releases Activity

mpeg12enc: Don't set up run-level info for level 0.

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run: The number of zero coefficients preceding a non-zero coefficient,
in the scan order. The absolute value of the non-zero coefficient is
called "level".

The run-level code makes illegal reads when trying to set up tables for
nonsense level 0.
This commit is contained in:
Alex Converse 2011-11-03 15:56:37 -07:00
parent a1684cf82d
commit 7c5dfc174b
1 changed files with 2 additions and 0 deletions
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2
libavcodec/mpeg12enc.c
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@ -74,6 +74,8 @@ static void init_uni_ac_vlc(RLTable *rl, uint8_t *uni_ac_vlc_len){
for(i=0; i<128; i++){ for(i=0; i<128; i++){
int level= i-64; int level= i-64;
int run; int run;
if (!level)
continue;
for(run=0; run<64; run++){ for(run=0; run<64; run++){
int len, bits, code; int len, bits, code;