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avfilter/vf_stack: add slice threading

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This commit is contained in:
Paul B Mahol 2019-09-25 19:02:57 +02:00
parent 44095564d4
commit 631f7acc6c
1 changed files with 28 additions and 15 deletions
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43
libavfilter/vf_stack.c
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@ -116,6 +116,29 @@ static av_cold int init(AVFilterContext *ctx)
return 0;
}
static int process_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
{
StackContext *s = ctx->priv;
AVFrame *out = arg;
AVFrame **in = s->frames;
const int start = (s->nb_inputs * job ) / nb_jobs;
const int end = (s->nb_inputs * (job+1)) / nb_jobs;
for (int i = start; i < end; i++) {
StackItem *item = &s->items[i];
for (int p = 0; p < s->nb_planes; p++) {
av_image_copy_plane(out->data[p] + out->linesize[p] * item->y[p] + item->x[p],
out->linesize[p],
in[i]->data[p],
in[i]->linesize[p],
item->linesize[p], item->height[p]);
}
}
return 0;
}
static int process_frame(FFFrameSync *fs)
{
AVFilterContext *ctx = fs->parent;
@ -123,7 +146,7 @@ static int process_frame(FFFrameSync *fs)
StackContext *s = fs->opaque;
AVFrame **in = s->frames;
AVFrame *out;
int i, p, ret;
int i, ret;
for (i = 0; i < s->nb_inputs; i++) {
if ((ret = ff_framesync_get_frame(&s->fs, i, &in[i], 0)) < 0)
@ -136,17 +159,7 @@ static int process_frame(FFFrameSync *fs)
out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
out->sample_aspect_ratio = outlink->sample_aspect_ratio;
for (i = 0; i < s->nb_inputs; i++) {
StackItem *item = &s->items[i];
for (p = 0; p < s->nb_planes; p++) {
av_image_copy_plane(out->data[p] + out->linesize[p] * item->y[p] + item->x[p],
out->linesize[p],
in[i]->data[p],
in[i]->linesize[p],
item->linesize[p], item->height[p]);
}
}
ctx->internal->execute(ctx, process_slice, out, NULL, FFMIN(s->nb_inputs, ff_filter_get_nb_threads(ctx)));
return ff_filter_frame(outlink, out);
}
@ -370,7 +383,7 @@ AVFilter ff_vf_hstack = {
.init = init,
.uninit = uninit,
.activate = activate,
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS,
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS | AVFILTER_FLAG_SLICE_THREADS,
};
#endif /* CONFIG_HSTACK_FILTER */
@ -390,7 +403,7 @@ AVFilter ff_vf_vstack = {
.init = init,
.uninit = uninit,
.activate = activate,
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS,
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS | AVFILTER_FLAG_SLICE_THREADS,
};
#endif /* CONFIG_VSTACK_FILTER */
@ -416,7 +429,7 @@ AVFilter ff_vf_xstack = {
.init = init,
.uninit = uninit,
.activate = activate,
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS,
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS | AVFILTER_FLAG_SLICE_THREADS,
};
#endif /* CONFIG_XSTACK_FILTER */