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-rw-r--r--libavfilter/vf_lut.c220
1 files changed, 123 insertions, 97 deletions
diff --git a/libavfilter/vf_lut.c b/libavfilter/vf_lut.c
index c59dcd6cc4..9f30ae0cdf 100644
--- a/libavfilter/vf_lut.c
+++ b/libavfilter/vf_lut.c
@@ -1,20 +1,20 @@
/*
* Copyright (c) 2011 Stefano Sabatini
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -27,18 +27,15 @@
#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "libavutil/eval.h"
-#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
+#include "drawutils.h"
#include "formats.h"
#include "internal.h"
#include "video.h"
static const char *const var_names[] = {
- "E",
- "PHI",
- "PI",
"w", ///< width of the input video
"h", ///< height of the input video
"val", ///< input value for the pixel
@@ -50,9 +47,6 @@ static const char *const var_names[] = {
};
enum var_name {
- VAR_E,
- VAR_PHI,
- VAR_PI,
VAR_W,
VAR_H,
VAR_VAL,
@@ -71,7 +65,6 @@ typedef struct {
int hsub, vsub;
double var_values[VAR_VARS_NB];
int is_rgb, is_yuv;
- int rgba_map[4];
int step;
int negate_alpha; /* only used by negate */
} LutContext;
@@ -85,9 +78,9 @@ typedef struct {
#define A 3
#define OFFSET(x) offsetof(LutContext, x)
-#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
-static const AVOption lut_options[] = {
+static const AVOption options[] = {
{ "c0", "set component #0 expression", OFFSET(comp_expr_str[0]), AV_OPT_TYPE_STRING, { .str = "val" }, .flags = FLAGS },
{ "c1", "set component #1 expression", OFFSET(comp_expr_str[1]), AV_OPT_TYPE_STRING, { .str = "val" }, .flags = FLAGS },
{ "c2", "set component #2 expression", OFFSET(comp_expr_str[2]), AV_OPT_TYPE_STRING, { .str = "val" }, .flags = FLAGS },
@@ -99,23 +92,9 @@ static const AVOption lut_options[] = {
{ "g", "set G expression", OFFSET(comp_expr_str[G]), AV_OPT_TYPE_STRING, { .str = "val" }, .flags = FLAGS },
{ "b", "set B expression", OFFSET(comp_expr_str[B]), AV_OPT_TYPE_STRING, { .str = "val" }, .flags = FLAGS },
{ "a", "set A expression", OFFSET(comp_expr_str[A]), AV_OPT_TYPE_STRING, { .str = "val" }, .flags = FLAGS },
- { NULL },
+ { NULL }
};
-static av_cold int init(AVFilterContext *ctx)
-{
- LutContext *s = ctx->priv;
-
- s->var_values[VAR_PHI] = M_PHI;
- s->var_values[VAR_PI] = M_PI;
- s->var_values[VAR_E ] = M_E;
-
- s->is_rgb = !strcmp(ctx->filter->name, "lutrgb");
- s->is_yuv = !strcmp(ctx->filter->name, "lutyuv");
-
- return 0;
-}
-
static av_cold void uninit(AVFilterContext *ctx)
{
LutContext *s = ctx->priv;
@@ -131,7 +110,7 @@ static av_cold void uninit(AVFilterContext *ctx)
#define YUV_FORMATS \
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, \
AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P, \
- AV_PIX_FMT_YUVA420P, \
+ AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, \
AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, \
AV_PIX_FMT_YUVJ440P
@@ -183,8 +162,8 @@ static double compute_gammaval(void *opaque, double gamma)
}
static double (* const funcs1[])(void *, double) = {
- clip,
- compute_gammaval,
+ (void *)clip,
+ (void *)compute_gammaval,
NULL
};
@@ -199,8 +178,9 @@ static int config_props(AVFilterLink *inlink)
AVFilterContext *ctx = inlink->dst;
LutContext *s = ctx->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
+ uint8_t rgba_map[4]; /* component index -> RGBA color index map */
int min[4], max[4];
- int val, comp, ret;
+ int val, color, ret;
s->hsub = desc->log2_chroma_w;
s->vsub = desc->log2_chroma_h;
@@ -216,6 +196,8 @@ static int config_props(AVFilterLink *inlink)
case AV_PIX_FMT_YUV440P:
case AV_PIX_FMT_YUV444P:
case AV_PIX_FMT_YUVA420P:
+ case AV_PIX_FMT_YUVA422P:
+ case AV_PIX_FMT_YUVA444P:
min[Y] = min[U] = min[V] = 16;
max[Y] = 235;
max[U] = max[V] = 240;
@@ -231,51 +213,45 @@ static int config_props(AVFilterLink *inlink)
else if (ff_fmt_is_in(inlink->format, rgb_pix_fmts)) s->is_rgb = 1;
if (s->is_rgb) {
- switch (inlink->format) {
- case AV_PIX_FMT_ARGB: s->rgba_map[A] = 0; s->rgba_map[R] = 1; s->rgba_map[G] = 2; s->rgba_map[B] = 3; break;
- case AV_PIX_FMT_ABGR: s->rgba_map[A] = 0; s->rgba_map[B] = 1; s->rgba_map[G] = 2; s->rgba_map[R] = 3; break;
- case AV_PIX_FMT_RGBA:
- case AV_PIX_FMT_RGB24: s->rgba_map[R] = 0; s->rgba_map[G] = 1; s->rgba_map[B] = 2; s->rgba_map[A] = 3; break;
- case AV_PIX_FMT_BGRA:
- case AV_PIX_FMT_BGR24: s->rgba_map[B] = 0; s->rgba_map[G] = 1; s->rgba_map[R] = 2; s->rgba_map[A] = 3; break;
- }
+ ff_fill_rgba_map(rgba_map, inlink->format);
s->step = av_get_bits_per_pixel(desc) >> 3;
}
- for (comp = 0; comp < desc->nb_components; comp++) {
+ for (color = 0; color < desc->nb_components; color++) {
double res;
+ int comp = s->is_rgb ? rgba_map[color] : color;
/* create the parsed expression */
- av_expr_free(s->comp_expr[comp]);
- s->comp_expr[comp] = NULL;
- ret = av_expr_parse(&s->comp_expr[comp], s->comp_expr_str[comp],
+ av_expr_free(s->comp_expr[color]);
+ s->comp_expr[color] = NULL;
+ ret = av_expr_parse(&s->comp_expr[color], s->comp_expr_str[color],
var_names, funcs1_names, funcs1, NULL, NULL, 0, ctx);
if (ret < 0) {
av_log(ctx, AV_LOG_ERROR,
- "Error when parsing the expression '%s' for the component %d.\n",
- s->comp_expr_str[comp], comp);
+ "Error when parsing the expression '%s' for the component %d and color %d.\n",
+ s->comp_expr_str[comp], comp, color);
return AVERROR(EINVAL);
}
- /* compute the s */
- s->var_values[VAR_MAXVAL] = max[comp];
- s->var_values[VAR_MINVAL] = min[comp];
+ /* compute the lut */
+ s->var_values[VAR_MAXVAL] = max[color];
+ s->var_values[VAR_MINVAL] = min[color];
for (val = 0; val < 256; val++) {
s->var_values[VAR_VAL] = val;
- s->var_values[VAR_CLIPVAL] = av_clip(val, min[comp], max[comp]);
+ s->var_values[VAR_CLIPVAL] = av_clip(val, min[color], max[color]);
s->var_values[VAR_NEGVAL] =
- av_clip(min[comp] + max[comp] - s->var_values[VAR_VAL],
- min[comp], max[comp]);
+ av_clip(min[color] + max[color] - s->var_values[VAR_VAL],
+ min[color], max[color]);
- res = av_expr_eval(s->comp_expr[comp], s->var_values, s);
+ res = av_expr_eval(s->comp_expr[color], s->var_values, s);
if (isnan(res)) {
av_log(ctx, AV_LOG_ERROR,
- "Error when evaluating the expression '%s' for the value %d for the component #%d.\n",
- s->comp_expr_str[comp], val, comp);
+ "Error when evaluating the expression '%s' for the value %d for the component %d.\n",
+ s->comp_expr_str[color], val, comp);
return AVERROR(EINVAL);
}
- s->lut[comp][val] = av_clip((int)res, min[comp], max[comp]);
+ s->lut[comp][val] = av_clip((int)res, min[color], max[color]);
av_log(ctx, AV_LOG_DEBUG, "val[%d][%d] = %d\n", comp, val, s->lut[comp][val]);
}
}
@@ -290,14 +266,19 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *out;
uint8_t *inrow, *outrow, *inrow0, *outrow0;
- int i, j, k, plane;
+ int i, j, plane, direct = 0;
- out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
- if (!out) {
- av_frame_free(&in);
- return AVERROR(ENOMEM);
+ if (av_frame_is_writable(in)) {
+ direct = 1;
+ out = in;
+ } else {
+ 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);
}
- av_frame_copy_props(out, in);
if (s->is_rgb) {
/* packed */
@@ -305,11 +286,17 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
outrow0 = out->data[0];
for (i = 0; i < in->height; i ++) {
+ int w = inlink->w;
+ const uint8_t (*tab)[256] = (const uint8_t (*)[256])s->lut;
inrow = inrow0;
outrow = outrow0;
- for (j = 0; j < inlink->w; j++) {
- for (k = 0; k < s->step; k++)
- outrow[k] = s->lut[s->rgba_map[k]][inrow[k]];
+ for (j = 0; j < w; j++) {
+ switch (s->step) {
+ case 4: outrow[3] = tab[3][inrow[3]]; // Fall-through
+ case 3: outrow[2] = tab[2][inrow[2]]; // Fall-through
+ case 2: outrow[1] = tab[1][inrow[1]]; // Fall-through
+ default: outrow[0] = tab[0][inrow[0]];
+ }
outrow += s->step;
inrow += s->step;
}
@@ -318,77 +305,116 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
}
} else {
/* planar */
- for (plane = 0; plane < 4 && in->data[plane]; plane++) {
+ for (plane = 0; plane < 4 && in->data[plane] && in->linesize[plane]; plane++) {
int vsub = plane == 1 || plane == 2 ? s->vsub : 0;
int hsub = plane == 1 || plane == 2 ? s->hsub : 0;
+ int h = FF_CEIL_RSHIFT(inlink->h, vsub);
+ int w = FF_CEIL_RSHIFT(inlink->w, hsub);
inrow = in ->data[plane];
outrow = out->data[plane];
- for (i = 0; i < in->height >> vsub; i ++) {
- for (j = 0; j < inlink->w>>hsub; j++)
- outrow[j] = s->lut[plane][inrow[j]];
+ for (i = 0; i < h; i++) {
+ const uint8_t *tab = s->lut[plane];
+ for (j = 0; j < w; j++)
+ outrow[j] = tab[inrow[j]];
inrow += in ->linesize[plane];
outrow += out->linesize[plane];
}
}
}
- av_frame_free(&in);
+ if (!direct)
+ av_frame_free(&in);
+
return ff_filter_frame(outlink, out);
}
static const AVFilterPad inputs[] = {
- { .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .filter_frame = filter_frame,
- .config_props = config_props,
+ { .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .filter_frame = filter_frame,
+ .config_props = config_props,
},
- { .name = NULL}
+ { NULL }
};
static const AVFilterPad outputs[] = {
- { .name = "default",
- .type = AVMEDIA_TYPE_VIDEO, },
- { .name = NULL}
+ { .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ },
+ { NULL }
};
-#define DEFINE_LUT_FILTER(name_, description_, init_, options) \
- static const AVClass name_ ## _class = { \
- .class_name = #name_, \
- .item_name = av_default_item_name, \
- .option = options, \
- .version = LIBAVUTIL_VERSION_INT, \
- }; \
+
+#define DEFINE_LUT_FILTER(name_, description_) \
AVFilter ff_vf_##name_ = { \
.name = #name_, \
.description = NULL_IF_CONFIG_SMALL(description_), \
.priv_size = sizeof(LutContext), \
.priv_class = &name_ ## _class, \
- \
- .init = init_, \
+ .init = name_##_init, \
.uninit = uninit, \
.query_formats = query_formats, \
- \
.inputs = inputs, \
.outputs = outputs, \
+ .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, \
}
#if CONFIG_LUT_FILTER
-DEFINE_LUT_FILTER(lut, "Compute and apply a lookup table to the RGB/YUV input video.", init, lut_options);
+
+#define lut_options options
+AVFILTER_DEFINE_CLASS(lut);
+
+static int lut_init(AVFilterContext *ctx)
+{
+ return 0;
+}
+
+DEFINE_LUT_FILTER(lut, "Compute and apply a lookup table to the RGB/YUV input video.");
#endif
+
#if CONFIG_LUTYUV_FILTER
-DEFINE_LUT_FILTER(lutyuv, "Compute and apply a lookup table to the YUV input video.", init, lut_options);
+
+#define lutyuv_options options
+AVFILTER_DEFINE_CLASS(lutyuv);
+
+static av_cold int lutyuv_init(AVFilterContext *ctx)
+{
+ LutContext *s = ctx->priv;
+
+ s->is_yuv = 1;
+
+ return 0;
+}
+
+DEFINE_LUT_FILTER(lutyuv, "Compute and apply a lookup table to the YUV input video.");
#endif
+
#if CONFIG_LUTRGB_FILTER
-DEFINE_LUT_FILTER(lutrgb, "Compute and apply a lookup table to the RGB input video.", init, lut_options);
+
+#define lutrgb_options options
+AVFILTER_DEFINE_CLASS(lutrgb);
+
+static av_cold int lutrgb_init(AVFilterContext *ctx)
+{
+ LutContext *s = ctx->priv;
+
+ s->is_rgb = 1;
+
+ return 0;
+}
+
+DEFINE_LUT_FILTER(lutrgb, "Compute and apply a lookup table to the RGB input video.");
#endif
#if CONFIG_NEGATE_FILTER
static const AVOption negate_options[] = {
- { "negate_alpha", NULL, OFFSET(negate_alpha), AV_OPT_TYPE_INT, { .i64 = 0 }, .flags = FLAGS },
- { NULL },
+ { "negate_alpha", NULL, OFFSET(negate_alpha), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
+ { NULL }
};
+AVFILTER_DEFINE_CLASS(negate);
+
static av_cold int negate_init(AVFilterContext *ctx)
{
LutContext *s = ctx->priv;
@@ -397,7 +423,7 @@ static av_cold int negate_init(AVFilterContext *ctx)
av_log(ctx, AV_LOG_DEBUG, "negate_alpha:%d\n", s->negate_alpha);
for (i = 0; i < 4; i++) {
- s->comp_expr_str[i] = av_strdup((i == 3 && s->negate_alpha) ?
+ s->comp_expr_str[i] = av_strdup((i == 3 && !s->negate_alpha) ?
"val" : "negval");
if (!s->comp_expr_str[i]) {
uninit(ctx);
@@ -405,9 +431,9 @@ static av_cold int negate_init(AVFilterContext *ctx)
}
}
- return init(ctx);
+ return 0;
}
-DEFINE_LUT_FILTER(negate, "Negate input video.", negate_init, negate_options);
+DEFINE_LUT_FILTER(negate, "Negate input video.");
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-09 17:22:03 +0000