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avfilter/vf_pseudocolor: add slice threading

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This commit is contained in:
Paul B Mahol 2021-01-28 00:54:51 +01:00
parent b410b14fba
commit 24892fa4a7
1 changed files with 34 additions and 14 deletions
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48
libavfilter/vf_pseudocolor.c
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@ -596,13 +596,43 @@ static int config_input(AVFilterLink *inlink)
return 0;
}
typedef struct ThreadData {
AVFrame *in, *out;
} ThreadData;
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
PseudoColorContext *s = ctx->priv;
ThreadData *td = arg;
AVFrame *in = td->in;
AVFrame *out = td->out;
for (int plane = 0; plane < s->nb_planes; plane++) {
const int slice_start = (s->height[plane] * jobnr) / nb_jobs;
const int slice_end = (s->height[plane] * (jobnr+1)) / nb_jobs;
const int islice_start = (s->height[s->index] * jobnr) / nb_jobs;
ptrdiff_t ilinesize = in->linesize[s->index];
ptrdiff_t slinesize = in->linesize[plane];
ptrdiff_t dlinesize = out->linesize[plane];
const uint8_t *index = in->data[s->index] + islice_start * ilinesize;
const uint8_t *src = in->data[plane] + slice_start * slinesize;
uint8_t *dst = out->data[plane] + slice_start * dlinesize;
s->filter[plane](s->max, s->width[plane], slice_end - slice_start,
index, src, dst, ilinesize, slinesize,
dlinesize, s->lut[plane]);
}
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
PseudoColorContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
ThreadData td;
AVFrame *out;
int plane;
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
@ -611,18 +641,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
}
av_frame_copy_props(out, in);
for (plane = 0; plane < s->nb_planes; plane++) {
const uint8_t *index = in->data[s->index];
const uint8_t *src = in->data[plane];
uint8_t *dst = out->data[plane];
ptrdiff_t ilinesize = in->linesize[s->index];
ptrdiff_t slinesize = in->linesize[plane];
ptrdiff_t dlinesize = out->linesize[plane];
s->filter[plane](s->max, s->width[plane], s->height[plane],
index, src, dst, ilinesize, slinesize,
dlinesize, s->lut[plane]);
}
td.out = out, td.in = in;
ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(s->height[1], ff_filter_get_nb_threads(ctx)));
av_frame_free(&in);
return ff_filter_frame(outlink, out);
@ -668,5 +688,5 @@ AVFilter ff_vf_pseudocolor = {
.query_formats = query_formats,
.inputs = inputs,
.outputs = outputs,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
};