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Code Issues Releases Activity

avfilter/vf_neighbor: add slice threading

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol
2018-05-01 15:05:43 +02:00
parent ddf844d17c
commit 5bfc433a6e
1 changed files with 38 additions and 16 deletions
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54
libavfilter/vf_neighbor.c
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@@ -27,6 +27,10 @@
#include "internal.h"
#include "video.h"
typedef struct ThreadData {
AVFrame *in, *out;
} ThreadData;
typedef struct NContext {
const AVClass *class;
int planeheight[4];
@@ -148,36 +152,31 @@ static int config_input(AVFilterLink *inlink)
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
AVFilterContext *ctx = inlink->dst;
AVFilterLink *outlink = ctx->outputs[0];
NContext *s = ctx->priv;
AVFrame *out;
ThreadData *td = arg;
AVFrame *out = td->out;
AVFrame *in = td->in;
int plane, y;
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
av_frame_free(&in);
return AVERROR(ENOMEM);
}
av_frame_copy_props(out, in);
for (plane = 0; plane < s->nb_planes; plane++) {
const int threshold = s->threshold[plane];
const int stride = in->linesize[plane];
const int dstride = out->linesize[plane];
const uint8_t *src = in->data[plane];
uint8_t *dst = out->data[plane];
const int height = s->planeheight[plane];
const int width = s->planewidth[plane];
const int slice_start = (height * jobnr) / nb_jobs;
const int slice_end = (height * (jobnr+1)) / nb_jobs;
const uint8_t *src = (const uint8_t *)in->data[plane] + slice_start * stride;
uint8_t *dst = out->data[plane] + slice_start * dstride;
if (!threshold) {
av_image_copy_plane(dst, dstride, src, stride, width, height);
av_image_copy_plane(dst, dstride, src, stride, width, slice_end - slice_start);
continue;
}
for (y = 0; y < height; y++) {
for (y = slice_start; y < slice_end; y++) {
const int nh = y > 0;
const int ph = y < height - 1;
const uint8_t *coordinates[] = { src - nh * stride, src + 1 - nh * stride, src + 2 - nh * stride,
@@ -201,6 +200,28 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
}
}
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
AVFilterLink *outlink = ctx->outputs[0];
NContext *s = ctx->priv;
ThreadData td;
AVFrame *out;
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
av_frame_free(&in);
return AVERROR(ENOMEM);
}
av_frame_copy_props(out, in);
td.in = in;
td.out = out;
ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(s->planeheight[1], ff_filter_get_nb_threads(ctx)));
av_frame_free(&in);
return ff_filter_frame(outlink, out);
}
@@ -237,7 +258,8 @@ AVFilter ff_vf_##name_ = { \
.query_formats = query_formats, \
.inputs = neighbor_inputs, \
.outputs = neighbor_outputs, \
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, \
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC| \
AVFILTER_FLAG_SLICE_THREADS, \
}
#if CONFIG_EROSION_FILTER