boxblur->hsub = desc->log2_chroma_w;
boxblur->vsub = desc->log2_chroma_h;
- var_values[VAR_W] = inlink->w;
- var_values[VAR_H] = inlink->h;
+ var_values[VAR_W] = inlink->w;
+ var_values[VAR_H] = inlink->h;
var_values[VAR_CW] = cw = w>>boxblur->hsub;
var_values[VAR_CH] = ch = h>>boxblur->vsub;
- var_values[VAR_HSUB] = 1<<boxblur->hsub;
- var_values[VAR_VSUB] = 1<<boxblur->vsub;
+ var_values[VAR_HSUB] = 1<<boxblur->hsub;
+ var_values[VAR_VSUB] = 1<<boxblur->vsub;
#define EVAL_RADIUS_EXPR(comp) \
expr = boxblur->comp##_radius_expr; \
* and subtracting 1 input pixel.
* The following code adopts this faster variant.
*/
- int x, sum = 0;
const int length = radius*2 + 1;
const int inv = ((1<<16) + length/2)/length;
+ int x, sum = 0;
for (x = 0; x < radius; x++)
sum += src[x*src_step]<<1;
h, radius, power, temp);
}
-static int null_draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir) { return 0; }
-
-static int end_frame(AVFilterLink *inlink)
+static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *in)
{
AVFilterContext *ctx = inlink->dst;
BoxBlurContext *boxblur = ctx->priv;
AVFilterLink *outlink = inlink->dst->outputs[0];
- AVFilterBufferRef *inpicref = inlink ->cur_buf;
- AVFilterBufferRef *outpicref = outlink->out_buf;
+ AVFilterBufferRef *out;
int plane;
- int cw = inlink->w >> boxblur->hsub, ch = inlink->h >> boxblur->vsub;
+ int cw = inlink->w >> boxblur->hsub, ch = in->video->h >> boxblur->vsub;
int w[4] = { inlink->w, cw, cw, inlink->w };
- int h[4] = { inlink->h, ch, ch, inlink->h };
+ int h[4] = { in->video->h, ch, ch, in->video->h };
- for (plane = 0; inpicref->data[plane] && plane < 4; plane++)
- hblur(outpicref->data[plane], outpicref->linesize[plane],
- inpicref ->data[plane], inpicref ->linesize[plane],
+ out = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
+ if (!out) {
+ avfilter_unref_bufferp(&in);
+ return AVERROR(ENOMEM);
+ }
+ avfilter_copy_buffer_ref_props(out, in);
+
+ for (plane = 0; in->data[plane] && plane < 4; plane++)
+ hblur(out->data[plane], out->linesize[plane],
+ in ->data[plane], in ->linesize[plane],
w[plane], h[plane], boxblur->radius[plane], boxblur->power[plane],
boxblur->temp);
- for (plane = 0; inpicref->data[plane] && plane < 4; plane++)
- vblur(outpicref->data[plane], outpicref->linesize[plane],
- outpicref->data[plane], outpicref->linesize[plane],
+ for (plane = 0; in->data[plane] && plane < 4; plane++)
+ vblur(out->data[plane], out->linesize[plane],
+ out->data[plane], out->linesize[plane],
w[plane], h[plane], boxblur->radius[plane], boxblur->power[plane],
boxblur->temp);
- ff_draw_slice(outlink, 0, inlink->h, 1);
- return ff_end_frame(outlink);
+ avfilter_unref_bufferp(&in);
+
+ return ff_filter_frame(outlink, out);
}
static const AVFilterPad avfilter_vf_boxblur_inputs[] = {
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_input,
- .draw_slice = null_draw_slice,
- .end_frame = end_frame,
+ .filter_frame = filter_frame,
.min_perms = AV_PERM_READ
},
{ NULL }