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Code Issues Releases Activity

avfilter/vf_weave: add slice threading support

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This commit is contained in:
Paul B Mahol 2021-01-30 16:55:56 +01:00
parent 0959f95a8e
commit f0dd5c00cb
1 changed files with 44 additions and 16 deletions
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60
libavfilter/vf_weave.c
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@ -90,15 +90,51 @@ static int config_props_output(AVFilterLink *outlink)
return 0;
}
typedef struct ThreadData {
AVFrame *in, *out;
} ThreadData;
static int weave_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
AVFilterLink *inlink = ctx->inputs[0];
WeaveContext *s = ctx->priv;
ThreadData *td = arg;
AVFrame *in = td->in;
AVFrame *out = td->out;
const int weave = (s->double_weave && !(inlink->frame_count_out & 1));
const int field1 = weave ? s->first_field : (!s->first_field);
const int field2 = weave ? (!s->first_field) : s->first_field;
for (int i = 0; i < s->nb_planes; i++) {
const int height = s->planeheight[i];
const int start = (height * jobnr) / nb_jobs;
const int end = (height * (jobnr+1)) / nb_jobs;
av_image_copy_plane(out->data[i] + out->linesize[i] * field1 +
out->linesize[i] * start * 2,
out->linesize[i] * 2,
in->data[i] + start * in->linesize[i],
in->linesize[i],
s->linesize[i], end - start);
av_image_copy_plane(out->data[i] + out->linesize[i] * field2 +
out->linesize[i] * start * 2,
out->linesize[i] * 2,
s->prev->data[i] + start * s->prev->linesize[i],
s->prev->linesize[i],
s->linesize[i], end - start);
}
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
WeaveContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
ThreadData td;
AVFrame *out;
int i;
int weave;
int field1, field2;
if (!s->prev) {
s->prev = in;
@ -113,19 +149,9 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *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++) {
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]);
}
td.out = out, td.in = in;
ctx->internal->execute(ctx, weave_slice, &td, NULL, FFMIN(s->planeheight[1],
ff_filter_get_nb_threads(ctx)));
out->pts = s->double_weave ? s->prev->pts : in->pts / 2;
out->interlaced_frame = 1;
@ -173,6 +199,7 @@ AVFilter ff_vf_weave = {
.uninit = uninit,
.inputs = weave_inputs,
.outputs = weave_outputs,
.flags = AVFILTER_FLAG_SLICE_THREADS,
};
static av_cold int init(AVFilterContext *ctx)
@ -198,4 +225,5 @@ AVFilter ff_vf_doubleweave = {
.uninit = uninit,
.inputs = weave_inputs,
.outputs = weave_outputs,
.flags = AVFILTER_FLAG_SLICE_THREADS,
};