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Make sure spatial_decomposition_count is >0.

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Originally committed as revision 18394 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2009-04-09 19:45:10 +00:00
parent dc7f45a08e
commit 440882f7be
1 changed files with 2 additions and 2 deletions
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4
libavcodec/snow.c
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@ -3582,7 +3582,7 @@ static int decode_header(SnowContext *s){
s->always_reset= get_rac(&s->c, s->header_state);
s->temporal_decomposition_type= get_symbol(&s->c, s->header_state, 0);
s->temporal_decomposition_count= get_symbol(&s->c, s->header_state, 0);
GET_S(s->spatial_decomposition_count, tmp <= (unsigned)MAX_DECOMPOSITIONS)
GET_S(s->spatial_decomposition_count, 0 < tmp && tmp <= MAX_DECOMPOSITIONS)
s->colorspace_type= get_symbol(&s->c, s->header_state, 0);
s->chroma_h_shift= get_symbol(&s->c, s->header_state, 0);
s->chroma_v_shift= get_symbol(&s->c, s->header_state, 0);
@ -3615,7 +3615,7 @@ static int decode_header(SnowContext *s){
memcpy(s->plane[2].hcoeff, s->plane[1].hcoeff, sizeof(s->plane[1].hcoeff));
}
if(get_rac(&s->c, s->header_state)){
GET_S(s->spatial_decomposition_count, tmp <= (unsigned)MAX_DECOMPOSITIONS)
GET_S(s->spatial_decomposition_count, 0 < tmp && tmp <= MAX_DECOMPOSITIONS)
decode_qlogs(s);
}
}