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prevent assert failure with negative quant_offset

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Originally committed as revision 9830 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-07-29 21:34:31 +00:00
parent 3dd2a1c53f
commit 2711cb28f4
1 changed files with 2 additions and 0 deletions
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2
libavcodec/ratecontrol.c
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@ -371,6 +371,7 @@ static double get_qscale(MpegEncContext *s, RateControlEntry *rce, double rate_f
q= -q*s->avctx->i_quant_factor + s->avctx->i_quant_offset;
else if(pict_type==B_TYPE && s->avctx->b_quant_factor<0.0)
q= -q*s->avctx->b_quant_factor + s->avctx->b_quant_offset;
if(q<1) q=1;
return q;
}
@ -386,6 +387,7 @@ static double get_diff_limited_q(MpegEncContext *s, RateControlEntry *rce, doubl
q= last_p_q *FFABS(a->i_quant_factor) + a->i_quant_offset;
else if(pict_type==B_TYPE && a->b_quant_factor>0.0)
q= last_non_b_q* a->b_quant_factor + a->b_quant_offset;
if(q<1) q=1;
/* last qscale / qdiff stuff */
if(rcc->last_non_b_pict_type==pict_type || pict_type!=I_TYPE){