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Code Issues Releases Activity

avfilter/vf_colorcorrect: calculate imax/max once at config stage

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This commit is contained in:
Paul B Mahol
2021-08-15 23:58:05 +02:00
parent d42b49fc87
commit e0de0aa585
1 changed files with 9 additions and 11 deletions
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20
libavfilter/vf_colorcorrect.c
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@@ -42,6 +42,7 @@ typedef struct ColorCorrectContext {
int analyze;
int depth;
float max, imax;
int chroma_w, chroma_h;
int planeheight[4];
@@ -59,9 +60,7 @@ static int average_slice8(AVFilterContext *ctx, void *arg, int jobnr, int nb_job
{
ColorCorrectContext *s = ctx->priv;
AVFrame *frame = arg;
const int depth = s->depth;
const float max = (1 << depth) - 1;
const float imax = 1.f / max;
const float imax = s->imax;
const int width = s->planewidth[1];
const int height = s->planeheight[1];
const int slice_start = (height * jobnr) / nb_jobs;
@@ -92,9 +91,7 @@ static int average_slice16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jo
{
ColorCorrectContext *s = ctx->priv;
AVFrame *frame = arg;
const int depth = s->depth;
const float max = (1 << depth) - 1;
const float imax = 1.f / max;
const float imax = s->imax;
const int width = s->planewidth[1];
const int height = s->planeheight[1];
const int slice_start = (height * jobnr) / nb_jobs;
@@ -134,9 +131,8 @@ static int colorcorrect_slice8(AVFilterContext *ctx, void *arg, int jobnr, int n
{
ColorCorrectContext *s = ctx->priv;
AVFrame *frame = arg;
const int depth = s->depth;
const float max = (1 << depth) - 1;
const float imax = 1.f / max;
const float max = s->max;
const float imax = s->imax;
const int chroma_w = s->chroma_w;
const int chroma_h = s->chroma_h;
const int width = s->planewidth[1];
@@ -176,8 +172,8 @@ static int colorcorrect_slice16(AVFilterContext *ctx, void *arg, int jobnr, int
ColorCorrectContext *s = ctx->priv;
AVFrame *frame = arg;
const int depth = s->depth;
const float max = (1 << depth) - 1;
const float imax = 1.f / max;
const float max = s->max;
const float imax = s->imax;
const int chroma_w = s->chroma_w;
const int chroma_h = s->chroma_h;
const int width = s->planewidth[1];
@@ -268,6 +264,8 @@ static av_cold int config_input(AVFilterLink *inlink)
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
s->depth = desc->comp[0].depth;
s->max = (1 << s->depth) - 1;
s->imax = 1.f / s->max;
s->do_slice = s->depth <= 8 ? colorcorrect_slice8 : colorcorrect_slice16;
s->analyzeret = av_calloc(inlink->h, sizeof(*s->analyzeret));