typedef struct {
int max_step[4]; ///< max pixel step for each plane, expressed as a number of bytes
- int hsub, vsub; ///< chroma subsampling
+ int planewidth[4]; ///< width of each plane
+ int planeheight[4]; ///< height of each plane
} FlipContext;
static int query_formats(AVFilterContext *ctx)
{
FlipContext *s = inlink->dst->priv;
const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
+ const int hsub = pix_desc->log2_chroma_w;
+ const int vsub = pix_desc->log2_chroma_h;
av_image_fill_max_pixsteps(s->max_step, NULL, pix_desc);
- s->hsub = pix_desc->log2_chroma_w;
- s->vsub = pix_desc->log2_chroma_h;
+ s->planewidth[0] = s->planewidth[3] = inlink->w;
+ s->planewidth[1] = s->planewidth[2] = FF_CEIL_RSHIFT(inlink->w, hsub);
+ s->planeheight[0] = s->planeheight[3] = inlink->h;
+ s->planeheight[1] = s->planeheight[2] = FF_CEIL_RSHIFT(inlink->h, vsub);
return 0;
}
memcpy(out->data[1], in->data[1], AVPALETTE_SIZE);
for (plane = 0; plane < 4 && in->data[plane] && in->linesize[plane]; plane++) {
- const int width = (plane == 1 || plane == 2) ? FF_CEIL_RSHIFT(inlink->w, s->hsub) : inlink->w;
- const int height = (plane == 1 || plane == 2) ? FF_CEIL_RSHIFT(inlink->h, s->vsub) : inlink->h;
+ const int width = s->planewidth[plane];
+ const int height = s->planeheight[plane];
step = s->max_step[plane];
outrow = out->data[plane];