AVFilterLink *outlink = ctx->outputs[0];
AVFrame *out;
int i;
+ int weave;
+ int field1, field2;
if (!s->prev) {
s->prev = in;
}
av_frame_copy_props(out, in);
+ weave = (s->double_weave && !(inlink->frame_count_out & 1));
+ field1 = weave ? s->first_field : (!s->first_field);
+ field2 = weave ? (!s->first_field) : s->first_field;
for (i = 0; i < s->nb_planes; i++) {
- if (s->double_weave && !(inlink->frame_count_out & 1)) {
- av_image_copy_plane(out->data[i] + out->linesize[i] * s->first_field,
- out->linesize[i] * 2,
- in->data[i], in->linesize[i],
- s->linesize[i], s->planeheight[i]);
- av_image_copy_plane(out->data[i] + out->linesize[i] * !s->first_field,
- out->linesize[i] * 2,
- s->prev->data[i], s->prev->linesize[i],
- s->linesize[i], s->planeheight[i]);
- } else {
- av_image_copy_plane(out->data[i] + out->linesize[i] * !s->first_field,
- out->linesize[i] * 2,
- in->data[i], in->linesize[i],
- s->linesize[i], s->planeheight[i]);
- av_image_copy_plane(out->data[i] + out->linesize[i] * s->first_field,
- out->linesize[i] * 2,
- s->prev->data[i], s->prev->linesize[i],
- s->linesize[i], s->planeheight[i]);
- }
+ av_image_copy_plane(out->data[i] + out->linesize[i] * field1,
+ out->linesize[i] * 2,
+ in->data[i], in->linesize[i],
+ s->linesize[i], s->planeheight[i]);
+ av_image_copy_plane(out->data[i] + out->linesize[i] * field2,
+ out->linesize[i] * 2,
+ s->prev->data[i], s->prev->linesize[i],
+ s->linesize[i], s->planeheight[i]);
}
out->pts = s->double_weave ? s->prev->pts : in->pts / 2;