提交 99180fe3 编写于 作者: M Michael Niedermayer

(commit by michael)

new msmpeg4 dequantizer did dequantize too early

Originally committed as revision 261 to svn://svn.ffmpeg.org/ffmpeg/trunk
上级 badaf88e
...@@ -868,9 +868,10 @@ static int msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block, ...@@ -868,9 +868,10 @@ static int msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
if (code < 0 || code >= rl->n) if (code < 0 || code >= rl->n)
return -1; return -1;
run = rl->table_run[code]; run = rl->table_run[code];
level = rl->table_level[code] * qmul + qadd; level = rl->table_level[code];
last = code >= rl->last; last = code >= rl->last;
run += rl->max_run[last][level] + run_diff; run += rl->max_run[last][level] + run_diff;
level= level * qmul + qadd;
if (get_bits1(&s->gb)) if (get_bits1(&s->gb))
level = -level; level = -level;
} }
......
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