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vf_pad: Fix alignment of get_video_buffer() 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-10-27 03:46:09 +02:00
parent d18fd13f30
commit d7dcd96a23
1 changed files with 3 additions and 2 deletions
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5
libavfilter/vf_pad.c
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@ -251,9 +251,10 @@ static int config_output(AVFilterLink *outlink)
static AVFilterBufferRef *get_video_buffer(AVFilterLink *inlink, int perms, int w, int h)
{
PadContext *pad = inlink->dst->priv;
int align = (perms&AV_PERM_ALIGN) ? AVFILTER_ALIGN : 1;
AVFilterBufferRef *picref = avfilter_get_video_buffer(inlink->dst->outputs[0], perms,
w + (pad->w - pad->in_w),
w + (pad->w - pad->in_w) + 4*align,
h + (pad->h - pad->in_h));
int plane;
@ -264,7 +265,7 @@ static AVFilterBufferRef *get_video_buffer(AVFilterLink *inlink, int perms, int
int hsub = (plane == 1 || plane == 2) ? pad->hsub : 0;
int vsub = (plane == 1 || plane == 2) ? pad->vsub : 0;
picref->data[plane] += (pad->x >> hsub) * pad->line_step[plane] +
picref->data[plane] += FFALIGN(pad->x >> hsub, align) * pad->line_step[plane] +
(pad->y >> vsub) * picref->linesize[plane];
}