* value, and apply it to input video.
*/
+#include "libavutil/attributes.h"
+#include "libavutil/common.h"
#include "libavutil/eval.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
VAR_VARS_NB
};
-typedef struct {
+typedef struct LutContext {
const AVClass *class;
uint8_t lut[4][256]; ///< lookup table for each component
char *comp_expr_str[4];
#define A 3
#define OFFSET(x) offsetof(LutContext, x)
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
static const AVOption lut_options[] = {
- {"c0", "set component #0 expression", OFFSET(comp_expr_str[0]), FF_OPT_TYPE_STRING, {.str="val"}, CHAR_MIN, CHAR_MAX},
- {"c1", "set component #1 expression", OFFSET(comp_expr_str[1]), FF_OPT_TYPE_STRING, {.str="val"}, CHAR_MIN, CHAR_MAX},
- {"c2", "set component #2 expression", OFFSET(comp_expr_str[2]), FF_OPT_TYPE_STRING, {.str="val"}, CHAR_MIN, CHAR_MAX},
- {"c3", "set component #3 expression", OFFSET(comp_expr_str[3]), FF_OPT_TYPE_STRING, {.str="val"}, CHAR_MIN, CHAR_MAX},
- {"y", "set Y expression", OFFSET(comp_expr_str[Y]), FF_OPT_TYPE_STRING, {.str="val"}, CHAR_MIN, CHAR_MAX},
- {"u", "set U expression", OFFSET(comp_expr_str[U]), FF_OPT_TYPE_STRING, {.str="val"}, CHAR_MIN, CHAR_MAX},
- {"v", "set V expression", OFFSET(comp_expr_str[V]), FF_OPT_TYPE_STRING, {.str="val"}, CHAR_MIN, CHAR_MAX},
- {"r", "set R expression", OFFSET(comp_expr_str[R]), FF_OPT_TYPE_STRING, {.str="val"}, CHAR_MIN, CHAR_MAX},
- {"g", "set G expression", OFFSET(comp_expr_str[G]), FF_OPT_TYPE_STRING, {.str="val"}, CHAR_MIN, CHAR_MAX},
- {"b", "set B expression", OFFSET(comp_expr_str[B]), FF_OPT_TYPE_STRING, {.str="val"}, CHAR_MIN, CHAR_MAX},
- {"a", "set A expression", OFFSET(comp_expr_str[A]), FF_OPT_TYPE_STRING, {.str="val"}, CHAR_MIN, CHAR_MAX},
- {NULL},
+ { "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 },
+ { "c3", "set component #3 expression", OFFSET(comp_expr_str[3]), AV_OPT_TYPE_STRING, { .str = "val" }, .flags = FLAGS },
+ { "y", "set Y expression", OFFSET(comp_expr_str[Y]), AV_OPT_TYPE_STRING, { .str = "val" }, .flags = FLAGS },
+ { "u", "set U expression", OFFSET(comp_expr_str[U]), AV_OPT_TYPE_STRING, { .str = "val" }, .flags = FLAGS },
+ { "v", "set V expression", OFFSET(comp_expr_str[V]), AV_OPT_TYPE_STRING, { .str = "val" }, .flags = FLAGS },
+ { "r", "set R expression", OFFSET(comp_expr_str[R]), AV_OPT_TYPE_STRING, { .str = "val" }, .flags = FLAGS },
+ { "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 },
};
-static const char *lut_get_name(void *ctx)
+static av_cold int init(AVFilterContext *ctx)
{
- return "lut";
-}
-
-static const AVClass lut_class = {
- "LutContext",
- lut_get_name,
- lut_options
-};
-
-static int init(AVFilterContext *ctx, const char *args)
-{
- LutContext *lut = ctx->priv;
- int ret;
-
- lut->class = &lut_class;
- av_opt_set_defaults(lut);
+ LutContext *s = ctx->priv;
- lut->var_values[VAR_PHI] = M_PHI;
- lut->var_values[VAR_PI] = M_PI;
- lut->var_values[VAR_E ] = M_E;
+ s->var_values[VAR_PHI] = M_PHI;
+ s->var_values[VAR_PI] = M_PI;
+ s->var_values[VAR_E ] = M_E;
- lut->is_rgb = !strcmp(ctx->filter->name, "lutrgb");
- lut->is_yuv = !strcmp(ctx->filter->name, "lutyuv");
- if (args && (ret = av_set_options_string(lut, args, "=", ":")) < 0)
- return ret;
+ 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 *lut = ctx->priv;
+ LutContext *s = ctx->priv;
int i;
for (i = 0; i < 4; i++) {
- av_expr_free(lut->comp_expr[i]);
- lut->comp_expr[i] = NULL;
- av_freep(&lut->comp_expr_str[i]);
+ av_expr_free(s->comp_expr[i]);
+ s->comp_expr[i] = NULL;
+ av_freep(&s->comp_expr_str[i]);
}
}
#define YUV_FORMATS \
- PIX_FMT_YUV444P, PIX_FMT_YUV422P, PIX_FMT_YUV420P, \
- PIX_FMT_YUV411P, PIX_FMT_YUV410P, PIX_FMT_YUV440P, \
- PIX_FMT_YUVA420P, \
- PIX_FMT_YUVJ444P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ420P, \
- PIX_FMT_YUVJ440P
+ 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_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, \
+ AV_PIX_FMT_YUVJ440P
#define RGB_FORMATS \
- PIX_FMT_ARGB, PIX_FMT_RGBA, \
- PIX_FMT_ABGR, PIX_FMT_BGRA, \
- PIX_FMT_RGB24, PIX_FMT_BGR24
+ AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA, \
+ AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA, \
+ AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24
-static enum PixelFormat yuv_pix_fmts[] = { YUV_FORMATS, PIX_FMT_NONE };
-static enum PixelFormat rgb_pix_fmts[] = { RGB_FORMATS, PIX_FMT_NONE };
-static enum PixelFormat all_pix_fmts[] = { RGB_FORMATS, YUV_FORMATS, PIX_FMT_NONE };
+static const enum AVPixelFormat yuv_pix_fmts[] = { YUV_FORMATS, AV_PIX_FMT_NONE };
+static const enum AVPixelFormat rgb_pix_fmts[] = { RGB_FORMATS, AV_PIX_FMT_NONE };
+static const enum AVPixelFormat all_pix_fmts[] = { RGB_FORMATS, YUV_FORMATS, AV_PIX_FMT_NONE };
static int query_formats(AVFilterContext *ctx)
{
- LutContext *lut = ctx->priv;
+ LutContext *s = ctx->priv;
- enum PixelFormat *pix_fmts = lut->is_rgb ? rgb_pix_fmts :
- lut->is_yuv ? yuv_pix_fmts : all_pix_fmts;
+ const enum AVPixelFormat *pix_fmts = s->is_rgb ? rgb_pix_fmts :
+ s->is_yuv ? yuv_pix_fmts :
+ all_pix_fmts;
ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
return 0;
*/
static double clip(void *opaque, double val)
{
- LutContext *lut = opaque;
- double minval = lut->var_values[VAR_MINVAL];
- double maxval = lut->var_values[VAR_MAXVAL];
+ LutContext *s = opaque;
+ double minval = s->var_values[VAR_MINVAL];
+ double maxval = s->var_values[VAR_MAXVAL];
return av_clip(val, minval, maxval);
}
*/
static double compute_gammaval(void *opaque, double gamma)
{
- LutContext *lut = opaque;
- double val = lut->var_values[VAR_CLIPVAL];
- double minval = lut->var_values[VAR_MINVAL];
- double maxval = lut->var_values[VAR_MAXVAL];
+ LutContext *s = opaque;
+ double val = s->var_values[VAR_CLIPVAL];
+ double minval = s->var_values[VAR_MINVAL];
+ double maxval = s->var_values[VAR_MAXVAL];
return pow((val-minval)/(maxval-minval), gamma) * (maxval-minval)+minval;
}
static int config_props(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
- LutContext *lut = ctx->priv;
- const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[inlink->format];
+ LutContext *s = ctx->priv;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
int min[4], max[4];
int val, comp, ret;
- lut->hsub = desc->log2_chroma_w;
- lut->vsub = desc->log2_chroma_h;
+ s->hsub = desc->log2_chroma_w;
+ s->vsub = desc->log2_chroma_h;
- lut->var_values[VAR_W] = inlink->w;
- lut->var_values[VAR_H] = inlink->h;
+ s->var_values[VAR_W] = inlink->w;
+ s->var_values[VAR_H] = inlink->h;
switch (inlink->format) {
- case PIX_FMT_YUV410P:
- case PIX_FMT_YUV411P:
- case PIX_FMT_YUV420P:
- case PIX_FMT_YUV422P:
- case PIX_FMT_YUV440P:
- case PIX_FMT_YUV444P:
- case PIX_FMT_YUVA420P:
+ case AV_PIX_FMT_YUV410P:
+ case AV_PIX_FMT_YUV411P:
+ case AV_PIX_FMT_YUV420P:
+ case AV_PIX_FMT_YUV422P:
+ case AV_PIX_FMT_YUV440P:
+ case AV_PIX_FMT_YUV444P:
+ case AV_PIX_FMT_YUVA420P:
min[Y] = min[U] = min[V] = 16;
max[Y] = 235;
max[U] = max[V] = 240;
max[0] = max[1] = max[2] = max[3] = 255;
}
- lut->is_yuv = lut->is_rgb = 0;
- if (ff_fmt_is_in(inlink->format, yuv_pix_fmts)) lut->is_yuv = 1;
- else if (ff_fmt_is_in(inlink->format, rgb_pix_fmts)) lut->is_rgb = 1;
+ s->is_yuv = s->is_rgb = 0;
+ if (ff_fmt_is_in(inlink->format, yuv_pix_fmts)) s->is_yuv = 1;
+ else if (ff_fmt_is_in(inlink->format, rgb_pix_fmts)) s->is_rgb = 1;
- if (lut->is_rgb) {
+ if (s->is_rgb) {
switch (inlink->format) {
- case PIX_FMT_ARGB: lut->rgba_map[A] = 0; lut->rgba_map[R] = 1; lut->rgba_map[G] = 2; lut->rgba_map[B] = 3; break;
- case PIX_FMT_ABGR: lut->rgba_map[A] = 0; lut->rgba_map[B] = 1; lut->rgba_map[G] = 2; lut->rgba_map[R] = 3; break;
- case PIX_FMT_RGBA:
- case PIX_FMT_RGB24: lut->rgba_map[R] = 0; lut->rgba_map[G] = 1; lut->rgba_map[B] = 2; lut->rgba_map[A] = 3; break;
- case PIX_FMT_BGRA:
- case PIX_FMT_BGR24: lut->rgba_map[B] = 0; lut->rgba_map[G] = 1; lut->rgba_map[R] = 2; lut->rgba_map[A] = 3; break;
+ 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;
}
- lut->step = av_get_bits_per_pixel(desc) >> 3;
+ s->step = av_get_bits_per_pixel(desc) >> 3;
}
for (comp = 0; comp < desc->nb_components; comp++) {
double res;
/* create the parsed expression */
- ret = av_expr_parse(&lut->comp_expr[comp], lut->comp_expr_str[comp],
+ 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],
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",
- lut->comp_expr_str[comp], comp);
+ s->comp_expr_str[comp], comp);
return AVERROR(EINVAL);
}
- /* compute the lut */
- lut->var_values[VAR_MAXVAL] = max[comp];
- lut->var_values[VAR_MINVAL] = min[comp];
+ /* compute the s */
+ s->var_values[VAR_MAXVAL] = max[comp];
+ s->var_values[VAR_MINVAL] = min[comp];
for (val = 0; val < 256; val++) {
- lut->var_values[VAR_VAL] = val;
- lut->var_values[VAR_CLIPVAL] = av_clip(val, min[comp], max[comp]);
- lut->var_values[VAR_NEGVAL] =
- av_clip(min[comp] + max[comp] - lut->var_values[VAR_VAL],
+ s->var_values[VAR_VAL] = val;
+ s->var_values[VAR_CLIPVAL] = av_clip(val, min[comp], max[comp]);
+ s->var_values[VAR_NEGVAL] =
+ av_clip(min[comp] + max[comp] - s->var_values[VAR_VAL],
min[comp], max[comp]);
- res = av_expr_eval(lut->comp_expr[comp], lut->var_values, lut);
+ res = av_expr_eval(s->comp_expr[comp], 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",
- lut->comp_expr_str[comp], val, comp);
+ s->comp_expr_str[comp], val, comp);
return AVERROR(EINVAL);
}
- lut->lut[comp][val] = av_clip((int)res, min[comp], max[comp]);
- av_log(ctx, AV_LOG_DEBUG, "val[%d][%d] = %d\n", comp, val, lut->lut[comp][val]);
+ s->lut[comp][val] = av_clip((int)res, min[comp], max[comp]);
+ av_log(ctx, AV_LOG_DEBUG, "val[%d][%d] = %d\n", comp, val, s->lut[comp][val]);
}
}
return 0;
}
-static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
- LutContext *lut = ctx->priv;
+ LutContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
- AVFilterBufferRef *inpic = inlink ->cur_buf;
- AVFilterBufferRef *outpic = outlink->out_buf;
+ AVFrame *out;
uint8_t *inrow, *outrow, *inrow0, *outrow0;
int i, j, k, plane;
- if (lut->is_rgb) {
+ 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);
+
+ if (s->is_rgb) {
/* packed */
- inrow0 = inpic ->data[0] + y * inpic ->linesize[0];
- outrow0 = outpic->data[0] + y * outpic->linesize[0];
+ inrow0 = in ->data[0];
+ outrow0 = out->data[0];
- for (i = 0; i < h; i ++) {
+ for (i = 0; i < in->height; i ++) {
inrow = inrow0;
outrow = outrow0;
for (j = 0; j < inlink->w; j++) {
- for (k = 0; k < lut->step; k++)
- outrow[k] = lut->lut[lut->rgba_map[k]][inrow[k]];
- outrow += lut->step;
- inrow += lut->step;
+ for (k = 0; k < s->step; k++)
+ outrow[k] = s->lut[s->rgba_map[k]][inrow[k]];
+ outrow += s->step;
+ inrow += s->step;
}
- inrow0 += inpic ->linesize[0];
- outrow0 += outpic->linesize[0];
+ inrow0 += in ->linesize[0];
+ outrow0 += out->linesize[0];
}
} else {
/* planar */
- for (plane = 0; plane < 4 && inpic->data[plane]; plane++) {
- int vsub = plane == 1 || plane == 2 ? lut->vsub : 0;
- int hsub = plane == 1 || plane == 2 ? lut->hsub : 0;
+ for (plane = 0; plane < 4 && in->data[plane]; plane++) {
+ int vsub = plane == 1 || plane == 2 ? s->vsub : 0;
+ int hsub = plane == 1 || plane == 2 ? s->hsub : 0;
- inrow = inpic ->data[plane] + (y>>vsub) * inpic ->linesize[plane];
- outrow = outpic->data[plane] + (y>>vsub) * outpic->linesize[plane];
+ inrow = in ->data[plane];
+ outrow = out->data[plane];
- for (i = 0; i < h>>vsub; i ++) {
+ for (i = 0; i < in->height >> vsub; i ++) {
for (j = 0; j < inlink->w>>hsub; j++)
- outrow[j] = lut->lut[plane][inrow[j]];
- inrow += inpic ->linesize[plane];
- outrow += outpic->linesize[plane];
+ outrow[j] = s->lut[plane][inrow[j]];
+ inrow += in ->linesize[plane];
+ outrow += out->linesize[plane];
}
}
}
- return ff_draw_slice(outlink, y, h, slice_dir);
+ av_frame_free(&in);
+ return ff_filter_frame(outlink, out);
}
static const AVFilterPad inputs[] = {
{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO,
- .draw_slice = draw_slice,
+ .filter_frame = filter_frame,
.config_props = config_props,
- .min_perms = AV_PERM_READ, },
+ },
{ .name = NULL}
};
static const AVFilterPad outputs[] = {
.type = AVMEDIA_TYPE_VIDEO, },
{ .name = NULL}
};
-#define DEFINE_LUT_FILTER(name_, description_, init_) \
- AVFilter avfilter_vf_##name_ = { \
+#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, \
+ }; \
+ AVFilter ff_vf_##name_ = { \
.name = #name_, \
.description = NULL_IF_CONFIG_SMALL(description_), \
.priv_size = sizeof(LutContext), \
+ .priv_class = &name_ ## _class, \
\
.init = init_, \
.uninit = uninit, \
}
#if CONFIG_LUT_FILTER
-DEFINE_LUT_FILTER(lut, "Compute and apply a lookup table to the RGB/YUV input video.", init);
+DEFINE_LUT_FILTER(lut, "Compute and apply a lookup table to the RGB/YUV input video.", init, lut_options);
#endif
#if CONFIG_LUTYUV_FILTER
-DEFINE_LUT_FILTER(lutyuv, "Compute and apply a lookup table to the YUV input video.", init);
+DEFINE_LUT_FILTER(lutyuv, "Compute and apply a lookup table to the YUV input video.", init, lut_options);
#endif
#if CONFIG_LUTRGB_FILTER
-DEFINE_LUT_FILTER(lutrgb, "Compute and apply a lookup table to the RGB input video.", init);
+DEFINE_LUT_FILTER(lutrgb, "Compute and apply a lookup table to the RGB input video.", init, lut_options);
#endif
#if CONFIG_NEGATE_FILTER
-static int negate_init(AVFilterContext *ctx, const char *args)
-{
- LutContext *lut = ctx->priv;
- char lut_params[64];
+static const AVOption negate_options[] = {
+ { "negate_alpha", NULL, OFFSET(negate_alpha), AV_OPT_TYPE_INT, { .i64 = 0 }, .flags = FLAGS },
+ { NULL },
+};
- if (args)
- sscanf(args, "%d", &lut->negate_alpha);
+static av_cold int negate_init(AVFilterContext *ctx)
+{
+ LutContext *s = ctx->priv;
+ int i;
- av_log(ctx, AV_LOG_DEBUG, "negate_alpha:%d\n", lut->negate_alpha);
+ av_log(ctx, AV_LOG_DEBUG, "negate_alpha:%d\n", s->negate_alpha);
- snprintf(lut_params, sizeof(lut_params), "c0=negval:c1=negval:c2=negval:a=%s",
- lut->negate_alpha ? "negval" : "val");
+ for (i = 0; i < 4; i++) {
+ s->comp_expr_str[i] = av_strdup((i == 3 && s->negate_alpha) ?
+ "val" : "negval");
+ if (!s->comp_expr_str[i]) {
+ uninit(ctx);
+ return AVERROR(ENOMEM);
+ }
+ }
- return init(ctx, lut_params);
+ return init(ctx);
}
-DEFINE_LUT_FILTER(negate, "Negate input video.", negate_init);
+DEFINE_LUT_FILTER(negate, "Negate input video.", negate_init, negate_options);
#endif
projects / ffmpeg / blobdiff