Author: stefano Date: Wed Mar 4 01:06:52 2009 New Revision: 4155 Log: Use av_gcd() rather than av_reduce() when computing outpic->pixel_aspect, simplify. Modified: libavfilter/vf_scale.c Modified: libavfilter/vf_scale.c ============================================================================== --- libavfilter/vf_scale.c Wed Mar 4 01:03:07 2009 (r4154) +++ libavfilter/vf_scale.c Wed Mar 4 01:06:52 2009 (r4155) @@ -128,15 +128,17 @@ static void start_frame(AVFilterLink *li { ScaleContext *scale = link->dst->priv; AVFilterLink *out = link->dst->outputs[0]; + int64_t gcd; out->outpic = avfilter_get_video_buffer(out, AV_PERM_WRITE); out->outpic->pts = picref->pts; out->outpic->pixel_aspect.num = picref->pixel_aspect.num * out->h * link->w; out->outpic->pixel_aspect.den = picref->pixel_aspect.den * out->w * link->h; - av_reduce(&out->outpic->pixel_aspect.num, &out->outpic->pixel_aspect.den, - out->outpic->pixel_aspect.num, out->outpic->pixel_aspect.den, - FFMAX(out->outpic->pixel_aspect.num, out->outpic->pixel_aspect.den)); + + gcd = av_gcd(out->outpic->pixel_aspect.num, out->outpic->pixel_aspect.den); + out->outpic->pixel_aspect.num /= gcd; + out->outpic->pixel_aspect.den /= gcd; avfilter_start_frame(out, avfilter_ref_pic(out->outpic, ~0));