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Code Issues Releases Activity

avfilter/vf_lagfun: small speed-up

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This commit is contained in:
Paul B Mahol
2022-04-22 11:39:20 +02:00
parent 499e245b85
commit b1b7249606
1 changed files with 17 additions and 11 deletions
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28
libavfilter/vf_lagfun.c
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@@ -41,7 +41,7 @@ typedef struct LagfunContext {
float *old[4];
int (*lagfun)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
int (*lagfun[2])(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
} LagfunContext;
static const enum AVPixelFormat pixel_fmts[] = {
@@ -71,7 +71,7 @@ typedef struct ThreadData {
AVFrame *in, *out;
} ThreadData;
#define LAGFUN(name, type, round) \
#define LAGFUN(name, type, round, disabled) \
static int lagfun_frame##name(AVFilterContext *ctx, void *arg, \
int jobnr, int nb_jobs) \
{ \
@@ -84,6 +84,7 @@ static int lagfun_frame##name(AVFilterContext *ctx, void *arg, \
for (int p = 0; p < s->nb_planes; p++) { \
const int slice_start = (s->planeheight[p] * jobnr) / nb_jobs; \
const int slice_end = (s->planeheight[p] * (jobnr+1)) / nb_jobs; \
const int width = s->planewidth[p]; \
const type *src = (const type *)in->data[p] + \
slice_start * in->linesize[p] / sizeof(type); \
float *osrc = s->old[p] + slice_start * s->planewidth[p]; \
@@ -98,11 +99,11 @@ static int lagfun_frame##name(AVFilterContext *ctx, void *arg, \
} \
\
for (int y = slice_start; y < slice_end; y++) { \
for (int x = 0; x < s->planewidth[p]; x++) { \
float v = FFMAX(src[x], osrc[x] * decay); \
for (int x = 0; x < width; x++) { \
const float v = fmaxf(src[x], osrc[x] * decay); \
\
osrc[x] = v; \
if (ctx->is_disabled) { \
if (disabled) { \
dst[x] = src[x]; \
} else { \
dst[x] = round(v); \
@@ -110,7 +111,7 @@ static int lagfun_frame##name(AVFilterContext *ctx, void *arg, \
} \
\
src += in->linesize[p] / sizeof(type); \
osrc += s->planewidth[p]; \
osrc += width; \
dst += out->linesize[p] / sizeof(type); \
} \
} \
@@ -118,9 +119,13 @@ static int lagfun_frame##name(AVFilterContext *ctx, void *arg, \
return 0; \
}
LAGFUN(8, uint8_t, lrintf)
LAGFUN(16, uint16_t, lrintf)
LAGFUN(32, float, )
LAGFUN(8, uint8_t, lrintf, 0)
LAGFUN(16, uint16_t, lrintf, 0)
LAGFUN(32, float, , 0)
LAGFUN(d8, uint8_t, lrintf, 1)
LAGFUN(d16, uint16_t, lrintf, 1)
LAGFUN(d32, float, , 1)
static int config_output(AVFilterLink *outlink)
{
@@ -135,7 +140,8 @@ static int config_output(AVFilterLink *outlink)
return AVERROR_BUG;
s->nb_planes = av_pix_fmt_count_planes(outlink->format);
s->depth = desc->comp[0].depth;
s->lagfun = s->depth <= 8 ? lagfun_frame8 : s->depth <= 16 ? lagfun_frame16 : lagfun_frame32;
s->lagfun[0] = s->depth <= 8 ? lagfun_frame8 : s->depth <= 16 ? lagfun_frame16 : lagfun_frame32;
s->lagfun[1] = s->depth <= 8 ? lagfun_framed8 : s->depth <= 16 ? lagfun_framed16 : lagfun_framed32;
if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
return ret;
@@ -171,7 +177,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
td.out = out;
td.in = in;
ff_filter_execute(ctx, s->lagfun, &td, NULL,
ff_filter_execute(ctx, s->lagfun[!!ctx->is_disabled], &td, NULL,
FFMIN(s->planeheight[1], ff_filter_get_nb_threads(ctx)));
av_frame_free(&in);