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lavfi/blend: fix SW/SH calculation

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-05-24 17:34:22 +00:00
parent bca59d7745
commit af12573938
1 changed files with 2 additions and 2 deletions
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4
libavfilter/vf_blend.c
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@ -383,8 +383,8 @@ static void blend_frame(AVFilterContext *ctx,
param->values[VAR_T] = dst_buf->pts == AV_NOPTS_VALUE ? NAN : dst_buf->pts * av_q2d(inlink->time_base);
param->values[VAR_W] = outw;
param->values[VAR_H] = outh;
param->values[VAR_SW] = outw / dst_buf->width;
param->values[VAR_SH] = outh / dst_buf->height;
param->values[VAR_SW] = outw / (double)dst_buf->width;
param->values[VAR_SH] = outh / (double)dst_buf->height;
param->blend(top, top_buf->linesize[plane],
bottom, bottom_buf->linesize[plane],
dst, dst_buf->linesize[plane], outw, outh, param);