static int end_frame(AVFilterLink *link)
{
return ff_null_end_frame(link);
}
static int end_frame(AVFilterLink *inlink)
{
TransContext *trans = inlink->dst->priv;
AVFilterBufferRef *inpic = inlink->cur_buf;
AVFilterBufferRef *outpic = inlink->dst->outputs[0]->out_buf;
AVFilterLink *outlink = inlink->dst->outputs[0];
int plane, ret;
if (trans->passthrough)
return ff_null_end_frame(inlink);
for (plane = 0; outpic->data[plane]; plane++) {
int hsub = plane == 1 || plane == 2 ? trans->hsub : 0;
int vsub = plane == 1 || plane == 2 ? trans->vsub : 0;
int pixstep = trans->pixsteps[plane];
int inh = inpic->video->h>>vsub;
int outw = outpic->video->w>>hsub;
int outh = outpic->video->h>>vsub;
uint8_t *out, *in;
int outlinesize, inlinesize;
int x, y;
out = outpic->data[plane]; outlinesize = outpic->linesize[plane];
in = inpic ->data[plane]; inlinesize = inpic ->linesize[plane];
if (trans->dir&1) {
in += inpic->linesize[plane] * (inh-1);
inlinesize *= -1;
}
if (trans->dir&2) {
out += outpic->linesize[plane] * (outh-1);
outlinesize *= -1;
}
for (y = 0; y < outh; y++) {
switch (pixstep) {
case 1:
for (x = 0; x < outw; x++)
out[x] = in[x*inlinesize + y];
break;
case 2:
for (x = 0; x < outw; x++)
*((uint16_t *)(out + 2*x)) = *((uint16_t *)(in + x*inlinesize + y*2));
break;
case 3:
for (x = 0; x < outw; x++) {
int32_t v = AV_RB24(in + x*inlinesize + y*3);
AV_WB24(out + 3*x, v);
}
break;
case 4:
for (x = 0; x < outw; x++)
*((uint32_t *)(out + 4*x)) = *((uint32_t *)(in + x*inlinesize + y*4));
break;
}
out += outlinesize;
}
}
if ((ret = ff_draw_slice(outlink, 0, outpic->video->h, 1)) < 0 ||
(ret = ff_end_frame(outlink)) < 0)
return ret;
return 0;
}
