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fixed case where abs_level > MAX_LEVEL

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Originally committed as revision 674 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard 2002-06-06 14:25:44 +00:00
parent 0f440e0214
commit 9f4f81ed17
1 changed files with 2 additions and 1 deletions
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3
libavcodec/h263.c
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@ -2956,7 +2956,7 @@ static inline int mpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
#if 1 #if 1
{ {
const int abs_level= ABS(level); const int abs_level= ABS(level);
const int run1= run - rl->max_run[last][abs_level] - 1; int run1;
if(abs_level<=MAX_LEVEL && run<=MAX_RUN && s->error_resilience>=0){ if(abs_level<=MAX_LEVEL && run<=MAX_RUN && s->error_resilience>=0){
if(abs_level <= rl->max_level[last][run]){ if(abs_level <= rl->max_level[last][run]){
fprintf(stderr, "illegal 3. esc, vlc encoding possible\n"); fprintf(stderr, "illegal 3. esc, vlc encoding possible\n");
@ -2966,6 +2966,7 @@ static inline int mpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
fprintf(stderr, "illegal 3. esc, esc 1 encoding possible\n"); fprintf(stderr, "illegal 3. esc, esc 1 encoding possible\n");
return DECODING_AC_LOST; return DECODING_AC_LOST;
} }
run1 = run - rl->max_run[last][abs_level] - 1;
if(run1 >= 0 && abs_level <= rl->max_level[last][run1]){ if(run1 >= 0 && abs_level <= rl->max_level[last][run1]){
fprintf(stderr, "illegal 3. esc, esc 2 encoding possible\n"); fprintf(stderr, "illegal 3. esc, esc 2 encoding possible\n");
return DECODING_AC_LOST; return DECODING_AC_LOST;