ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Thu Jul 21 02:04:03 2016 +0200| [9264bb7e79a50678eca6f320e1e1fb85bf00b009] | committer: Michael Niedermayer
avfilter/vf_psnr: Fix rounding error in average_max The intermediate was rounded to an integer Reviewed-by: Paul B Mahol <[email protected]> Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9264bb7e79a50678eca6f320e1e1fb85bf00b009 --- libavfilter/vf_psnr.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/libavfilter/vf_psnr.c b/libavfilter/vf_psnr.c index 89acd3c..0c8d0f1 100644 --- a/libavfilter/vf_psnr.c +++ b/libavfilter/vf_psnr.c @@ -241,6 +241,7 @@ static int config_input_ref(AVFilterLink *inlink) const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); AVFilterContext *ctx = inlink->dst; PSNRContext *s = ctx->priv; + double average_max; unsigned sum; int j; @@ -273,10 +274,12 @@ static int config_input_ref(AVFilterLink *inlink) sum = 0; for (j = 0; j < s->nb_components; j++) sum += s->planeheight[j] * s->planewidth[j]; + average_max = 0; for (j = 0; j < s->nb_components; j++) { s->planeweight[j] = (double) s->planeheight[j] * s->planewidth[j] / sum; - s->average_max += s->max[j] * s->planeweight[j]; + average_max += s->max[j] * s->planeweight[j]; } + s->average_max = lrint(average_max); s->dsp.sse_line = desc->comp[0].depth > 8 ? sse_line_16bit : sse_line_8bit; if (ARCH_X86) _______________________________________________ ffmpeg-cvslog mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
