VAR_VARS_NB
};
+enum Curves {
+ MAGMA,
+ INFERNO,
+ PLASMA,
+ VIRIDIS,
+ TURBO,
+ CIVIDIS,
+ NB_CURVES,
+};
+
+enum Presets {
+ PRESET_MAGMA,
+ PRESET_INFERNO,
+ PRESET_PLASMA,
+ PRESET_VIRIDIS,
+ PRESET_TURBO,
+ PRESET_CIVIDIS,
+ PRESET_RANGE1,
+ PRESET_RANGE2,
+ PRESET_SHADOWS,
+ PRESET_HIGHLIGHTS,
+ NB_PRESETS,
+};
+
+typedef struct Curve {
+ double coef[3][8];
+} Curve;
+
+typedef struct Fill {
+ float fill[4];
+} Fill;
+
+typedef struct Range {
+ int start, end;
+} Range;
+
+typedef struct Preset {
+ int nb_segments;
+ const Range *ranges;
+ const Curve *curves;
+ const Fill *fills;
+} Preset;
+
+static const Range full_range = {0, 256};
+static const Range spec1_range[] = {{0, 16}, {16, 236}, {236, 256}};
+static const Range spec2_range[] = {{0, 16}, {16, 22}, {22, 226}, {226, 236}, {236, 256}};
+static const Range shadows_range[] = {{0, 32}, {32, 256}};
+static const Range highlights_range[] = {{0, 214}, {214, 224}, {224, 256}};
+
+static const Fill spec1_fills[] = {{{0.5f, 0.f, .5f, 1.f}}, {{-1.f, -1.f, -1.f, 1.f}}, {{1.f, 0.f, 0.f, 1.f}}};
+static const Fill spec2_fills[] = {{{0.5f, 0.f, .5f, 1.f}}, {{0.f, 1.f, 1.f, 1.f}}, {{-1.f, -1.f, -1.f, 1.f}}, {{1.f, 1.f, 0.f, 1.f}}, {{1.f, 0.f, 0.f, 1.f}}};
+static const Fill shadows_fills[] = {{{0.8f, 0.4f, .8f, 1.f}}, {{-1.f, -1.f, -1.f, 1.f}}};
+static const Fill highlights_fills[] = {{{-1.f, -1.f, -1.f, 1.f}}, {{1.f, 0.3f, 0.6f, 1.f}}, {{1.f, 0.2f, .5f, 1.f}}};
+
+static const Curve curves[] =
+{
+ [MAGMA] = {{
+ {-7.5631093e-16, 7.4289183e-13, -2.8525484e-10, 5.4446085e-08, -5.5596238e-06, 3.0569325e-04, -2.3137421e-03, 1.2152095e-02 },
+ { 1.3217636e-15, -1.2214648e-12, 4.4319712e-10, -8.0197993e-08, 7.6598370e-06, -3.6523704e-04, 8.4836670e-03, -2.5536888e-02 },
+ {-1.1446568e-15, 1.0013446e-12, -3.5651575e-10, 6.6775016e-08, -6.7120346e-06, 2.7346619e-04, 4.7969657e-03, 1.1971441e-02 },
+ }},
+ [INFERNO] = {{
+ {-3.9848859e-18, 9.4821649e-14, -6.7371977e-11, 1.8469937e-08, -2.5359307e-06, 1.7959053e-04, 3.9782564e-04, 2.8845935e-04 },
+ { 6.8408539e-16, -6.5499979e-13, 2.4562526e-10, -4.5989298e-08, 4.5723324e-06, -2.2111913e-04, 5.2023164e-03, -1.1226064e-02 },
+ {-2.9921470e-15, 2.5864165e-12, -8.7403799e-10, 1.4713388e-07, -1.2701505e-05, 4.5159935e-04, 3.1087989e-03, 1.9122831e-02 },
+ }},
+ [PLASMA] = {{
+ { 3.6196089e-16, -3.3623041e-13, 1.2324010e-10, -2.2769060e-08, 2.2297792e-06, -1.2567829e-04, 9.9791629e-03, 5.7247918e-02 },
+ { 5.0262888e-16, -5.3193896e-13, 2.2451715e-10, -4.7529623e-08, 5.1374873e-06, -2.3260136e-04, 3.1502825e-03, 1.5362491e-02 },
+ {-1.7782261e-16, 2.2487839e-13, -1.0610236e-10, 2.4112644e-08, -2.6331623e-06, 8.9499751e-05, 2.1386328e-03, 5.3824268e-01 },
+ }},
+ [VIRIDIS] = {{
+ { 9.4850045e-16, -8.6629383e-13, 3.0310944e-10, -5.1340396e-08, 4.6024275e-06, -2.2744239e-04, 4.5559993e-03, 2.5662350e-01 },
+ { 9.6461041e-17, -6.9209477e-14, 1.7625397e-11, -2.0229773e-09, 1.4900110e-07, -1.9315187e-05, 5.8967339e-03, 3.9544827e-03 },
+ { 5.1785449e-16, -3.6663004e-13, 1.0249990e-10, -1.5431998e-08, 1.5007941e-06, -1.2001502e-04, 7.6951526e-03, 3.2292815e-01 },
+ }},
+ [TURBO] = {{
+ {-4.3683890e-15, 3.7020347e-12, -1.1712592e-09, 1.6401790e-07, -8.6842919e-06, -1.8542465e-06, 8.4485325e-03, 1.6267077e-01 },
+ {-4.0011069e-16, 2.7861423e-13, -6.3388921e-11, 5.8872238e-09, -5.4466522e-07, 1.8037114e-05, 1.0599869e-02, 7.6914696e-02 },
+ {-2.8242609e-15, 2.9234108e-12, -1.1726546e-09, 2.2552115e-07, -2.0059387e-05, 5.0595552e-04, 1.7714932e-02, 2.7271836e-01 },
+ }},
+ [CIVIDIS] = {{
+ {-9.5484131e-16, 9.6988184e-13, -4.0058766e-10, 8.5743924e-08, -9.9644797e-06, 5.9197908e-04, -1.0361579e-02, 3.3164429e-02 },
+ { 1.2731941e-17, -9.4238449e-15, 2.2808841e-12, -1.1548296e-10, -2.3888913e-08, 3.8986680e-06, 2.5879330e-03, 1.2769733e-01 },
+ { 4.6004608e-16, -5.0686849e-13, 2.2753449e-10, -5.3074099e-08, 6.7196096e-06, -4.4120020e-04, 1.3435551e-02, 2.8293355e-01 },
+ }},
+};
+
+static const Preset presets[] =
+{
+ [PRESET_MAGMA] = { 1, &full_range, &curves[MAGMA], NULL },
+ [PRESET_INFERNO] = { 1, &full_range, &curves[INFERNO], NULL },
+ [PRESET_PLASMA] = { 1, &full_range, &curves[PLASMA], NULL },
+ [PRESET_VIRIDIS] = { 1, &full_range, &curves[VIRIDIS], NULL },
+ [PRESET_TURBO] = { 1, &full_range, &curves[TURBO], NULL },
+ [PRESET_CIVIDIS] = { 1, &full_range, &curves[CIVIDIS], NULL },
+ [PRESET_RANGE1] = { 3, spec1_range, NULL, spec1_fills },
+ [PRESET_RANGE2] = { 5, spec2_range, NULL, spec2_fills },
+ [PRESET_SHADOWS] = { 2, shadows_range, NULL, shadows_fills },
+ [PRESET_HIGHLIGHTS] = { 3, highlights_range, NULL, highlights_fills },
+};
+
typedef struct PseudoColorContext {
const AVClass *class;
+ int preset;
+ float opacity;
int max;
int index;
int nb_planes;
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
- float *lut);
+ float *lut,
+ float opacity);
} PseudoColorContext;
#define OFFSET(x) offsetof(PseudoColorContext, x)
-#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
static const AVOption pseudocolor_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 },
{ "c3", "set component #3 expression", OFFSET(comp_expr_str[3]), AV_OPT_TYPE_STRING, {.str="val"}, .flags = FLAGS },
+ { "index", "set component as base", OFFSET(index), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, .flags = FLAGS },
{ "i", "set component as base", OFFSET(index), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, .flags = FLAGS },
+ { "preset", "set preset", OFFSET(preset), AV_OPT_TYPE_INT, {.i64=-1},-1, NB_PRESETS-1, .flags = FLAGS, "preset" },
+ { "p", "set preset", OFFSET(preset), AV_OPT_TYPE_INT, {.i64=-1},-1, NB_PRESETS-1, .flags = FLAGS, "preset" },
+ { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64=-1}, .flags = FLAGS, "preset" },
+ { "magma", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_MAGMA}, .flags = FLAGS, "preset" },
+ { "inferno", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_INFERNO}, .flags = FLAGS, "preset" },
+ { "plasma", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_PLASMA}, .flags = FLAGS, "preset" },
+ { "viridis", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_VIRIDIS}, .flags = FLAGS, "preset" },
+ { "turbo", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_TURBO}, .flags = FLAGS, "preset" },
+ { "cividis", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_CIVIDIS}, .flags = FLAGS, "preset" },
+ { "range1", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_RANGE1}, .flags = FLAGS, "preset" },
+ { "range2", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_RANGE2}, .flags = FLAGS, "preset" },
+ { "shadows", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_SHADOWS}, .flags = FLAGS, "preset" },
+ { "highlights", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_HIGHLIGHTS},.flags=FLAGS, "preset" },
+ { "opacity", "set pseudocolor opacity",OFFSET(opacity), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 1, .flags = FLAGS },
{ NULL }
};
return ff_set_common_formats(ctx, fmts_list);
}
+static inline float lerpf(float v0, float v1, float f)
+{
+ return v0 + (v1 - v0) * f;
+}
+
+#define PCLIP(v, max, dst, src, x) \
+ if (v >= 0 && v <= max) { \
+ dst[x] = lerpf(src[x], v, opacity);\
+ } else { \
+ dst[x] = src[x]; \
+ }
+
static void pseudocolor_filter(int max, int width, int height,
const uint8_t *index,
const uint8_t *src,
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
- float *lut)
+ float *lut,
+ float opacity)
{
int x, y;
for (x = 0; x < width; x++) {
int v = lut[index[x]];
- if (v >= 0 && v <= max) {
- dst[x] = v;
- } else {
- dst[x] = src[x];
- }
+ PCLIP(v, max, dst, src, x);
}
index += ilinesize;
src += slinesize;
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
- float *lut)
+ float *lut,
+ float opacity)
{
int x, y;
for (x = 0; x < width; x++) {
int v = lut[index[(y << 1) * ilinesize + (x << 1)]];
- if (v >= 0 && v <= max) {
- dst[x] = v;
- } else {
- dst[x] = src[x];
- }
+ PCLIP(v, max, dst, src, x);
}
src += slinesize;
dst += dlinesize;
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
- float *lut)
+ float *lut,
+ float opacity)
{
int x, y;
for (x = 0; x < width; x++) {
int v = lut[index[(y >> 1) * ilinesize + (x >> 1)]];
- if (v >= 0 && v <= max) {
- dst[x] = v;
- } else {
- dst[x] = src[x];
- }
+ PCLIP(v, max, dst, src, x);
}
src += slinesize;
dst += dlinesize;
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
- float *lut)
+ float *lut,
+ float opacity)
{
int x, y;
for (x = 0; x < width; x++) {
int v = lut[index[x << 1]];
- if (v >= 0 && v <= max) {
- dst[x] = v;
- } else {
- dst[x] = src[x];
- }
+ PCLIP(v, max, dst, src, x);
}
index += ilinesize;
src += slinesize;
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
- float *lut)
+ float *lut,
+ float opacity)
{
int x, y;
for (x = 0; x < width; x++) {
int v = lut[index[x >> 1]];
- if (v >= 0 && v <= max) {
- dst[x] = v;
- } else {
- dst[x] = src[x];
- }
+ PCLIP(v, max, dst, src, x);
}
index += ilinesize;
src += slinesize;
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
- float *lut)
+ float *lut,
+ float opacity)
{
const uint16_t *index = (const uint16_t *)iindex;
const uint16_t *src = (const uint16_t *)ssrc;
for (x = 0; x < width; x++) {
int v = lut[index[x]];
- if (v >= 0 && v <= max) {
- dst[x] = v;
- } else {
- dst[x] = src[x];
- }
+ PCLIP(v, max, dst, src, x);
}
index += ilinesize / 2;
src += slinesize / 2;
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
- float *lut)
+ float *lut,
+ float opacity)
{
const uint16_t *index = (const uint16_t *)iindex;
const uint16_t *src = (const uint16_t *)ssrc;
for (x = 0; x < width; x++) {
int v = lut[index[x << 1]];
- if (v >= 0 && v <= max) {
- dst[x] = v;
- } else {
- dst[x] = src[x];
- }
+ PCLIP(v, max, dst, src, x);
}
index += ilinesize / 2;
src += slinesize / 2;
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
- float *lut)
+ float *lut,
+ float opacity)
{
const uint16_t *index = (const uint16_t *)iindex;
const uint16_t *src = (const uint16_t *)ssrc;
for (x = 0; x < width; x++) {
int v = lut[index[x >> 1]];
- if (v >= 0 && v <= max) {
- dst[x] = v;
- } else {
- dst[x] = src[x];
- }
+ PCLIP(v, max, dst, src, x);
}
index += ilinesize / 2;
src += slinesize / 2;
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
- float *lut)
+ float *lut,
+ float opacity)
{
const uint16_t *index = (const uint16_t *)iindex;
const uint16_t *src = (const uint16_t *)ssrc;
for (x = 0; x < width; x++) {
int v = lut[index[(y << 1) * ilinesize + (x << 1)]];
- if (v >= 0 && v <= max) {
- dst[x] = v;
- } else {
- dst[x] = src[x];
- }
+ PCLIP(v, max, dst, src, x);
}
src += slinesize;
dst += dlinesize;
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
- float *lut)
+ float *lut,
+ float opacity)
{
const uint16_t *index = (const uint16_t *)iindex;
const uint16_t *src = (const uint16_t *)ssrc;
for (x = 0; x < width; x++) {
int v = lut[index[(y >> 1) * ilinesize + (x >> 1)]];
- if (v >= 0 && v <= max) {
- dst[x] = v;
- } else {
- dst[x] = src[x];
- }
+ PCLIP(v, max, dst, src, x);
}
src += slinesize;
dst += dlinesize;
}
}
+#define RGB_TO_Y_BT709(r, g, b) \
+((0.21260*219.0/255.0) * (r) + (0.71520*219.0/255.0) * (g) + \
+ (0.07220*219.0/255.0) * (b))
+
+#define RGB_TO_U_BT709(r1, g1, b1, max) \
+(-(0.11457*224.0/255.0) * r1 - (0.38543*224.0/255.0) * g1 + \
+ (0.50000*224.0/255.0) * b1 + max * 0.5)
+
+#define RGB_TO_V_BT709(r1, g1, b1, max) \
+((0.50000*224.0/255.0) * r1 - (0.45415*224.0/255.0) * g1 - \
+ (0.04585*224.0/255.0) * b1 + max * 0.5)
+
+static double poly_eval(const double *const poly, double x)
+{
+ double res = 0.;
+
+ for (int i = 0; i < 8; i++) {
+ res += pow(x, i) * poly[7-i];
+ }
+
+ return av_clipd(res, 0., 1.);
+}
+
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
PseudoColorContext *s = ctx->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
- int depth, ret, hsub, vsub, color;
+ int depth, ret, hsub, vsub, color, factor, rgb;
+ rgb = desc->flags & AV_PIX_FMT_FLAG_RGB;
depth = desc->comp[0].depth;
+ factor = 1 << (depth - 8);
s->max = (1 << depth) - 1;
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
s->var_values[VAR_VMAX] = 240 * (1 << (depth - 8));
s->var_values[VAR_AMAX] = s->max;
- for (color = 0; color < s->nb_planes; color++) {
+ for (color = 0; color < s->nb_planes && s->preset < 0; color++) {
double res;
int val;
}
}
+ if (s->preset >= 0) {
+ int nb_segments = presets[s->preset].nb_segments;
+
+ for (int seg = 0; seg < nb_segments; seg++) {
+ int start = presets[s->preset].ranges[seg].start;
+ int end = presets[s->preset].ranges[seg].end;
+
+ for (int i = start; i < end; i++) {
+ if (!presets[s->preset].curves) {
+ const Fill fill = presets[s->preset].fills[seg];
+
+ for (int j = 0; j < factor; j++) {
+ double r, g, b, a;
+
+ g = fill.fill[1];
+ b = fill.fill[2];
+ r = fill.fill[0];
+ a = fill.fill[3];
+
+ if (g >= 0.f && b >= 0.f && r >= 0.f) {
+ g *= s->max;
+ b *= s->max;
+ r *= s->max;
+
+ if (!rgb) {
+ double y = RGB_TO_Y_BT709(r, g, b);
+ double u = RGB_TO_U_BT709(r, g, b, s->max);
+ double v = RGB_TO_V_BT709(r, g, b, s->max);
+
+ r = v;
+ g = y;
+ b = u;
+ }
+ }
+
+ s->lut[0][i*factor+j] = g;
+ s->lut[1][i*factor+j] = b;
+ s->lut[2][i*factor+j] = r;
+ s->lut[3][i*factor+j] = a * s->max;
+ }
+ } else {
+ const Curve curve = presets[s->preset].curves[seg];
+
+ for (int j = 0; j < factor; j++) {
+ const double lf = j / (double)factor;
+ double r, g, b;
+
+ g = poly_eval(curve.coef[1], i + lf) * s->max;
+ b = poly_eval(curve.coef[2], i + lf) * s->max;
+ r = poly_eval(curve.coef[0], i + lf) * s->max;
+
+ if (!rgb) {
+ double y = RGB_TO_Y_BT709(r, g, b);
+ double u = RGB_TO_U_BT709(r, g, b, s->max);
+ double v = RGB_TO_V_BT709(r, g, b, s->max);
+
+ r = v;
+ g = y;
+ b = u;
+ }
+
+ s->lut[0][i*factor+j] = g;
+ s->lut[1][i*factor+j] = b;
+ s->lut[2][i*factor+j] = r;
+ s->lut[3][i*factor+j] = 1.f * s->max;
+ }
+ }
+ }
+ }
+ }
+
switch (inlink->format) {
case AV_PIX_FMT_YUV444P:
case AV_PIX_FMT_YUVA444P:
return 0;
}
+typedef struct ThreadData {
+ AVFrame *in, *out;
+} ThreadData;
+
+static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
+{
+ PseudoColorContext *s = ctx->priv;
+ ThreadData *td = arg;
+ AVFrame *in = td->in;
+ AVFrame *out = td->out;
+
+ for (int plane = 0; plane < s->nb_planes; plane++) {
+ const int slice_start = (s->height[plane] * jobnr) / nb_jobs;
+ const int slice_end = (s->height[plane] * (jobnr+1)) / nb_jobs;
+ const int islice_start = (s->height[s->index] * jobnr) / nb_jobs;
+ ptrdiff_t ilinesize = in->linesize[s->index];
+ ptrdiff_t slinesize = in->linesize[plane];
+ ptrdiff_t dlinesize = out->linesize[plane];
+ const uint8_t *index = in->data[s->index] + islice_start * ilinesize;
+ const uint8_t *src = in->data[plane] + slice_start * slinesize;
+ uint8_t *dst = out->data[plane] + slice_start * dlinesize;
+
+ s->filter[plane](s->max, s->width[plane], slice_end - slice_start,
+ index, src, dst, ilinesize, slinesize,
+ dlinesize, s->lut[plane], s->opacity);
+ }
+
+ return 0;
+}
+
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
PseudoColorContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
+ ThreadData td;
AVFrame *out;
- int plane;
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
}
av_frame_copy_props(out, in);
- for (plane = 0; plane < s->nb_planes; plane++) {
- const uint8_t *index = in->data[s->index];
- const uint8_t *src = in->data[plane];
- uint8_t *dst = out->data[plane];
- ptrdiff_t ilinesize = in->linesize[s->index];
- ptrdiff_t slinesize = in->linesize[plane];
- ptrdiff_t dlinesize = out->linesize[plane];
-
- s->filter[plane](s->max, s->width[plane], s->height[plane],
- index, src, dst, ilinesize, slinesize,
- dlinesize, s->lut[plane]);
- }
+ td.out = out, td.in = in;
+ ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(s->height[1], ff_filter_get_nb_threads(ctx)));
av_frame_free(&in);
return ff_filter_frame(outlink, out);
}
+static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
+ char *res, int res_len, int flags)
+{
+ int ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
+
+ if (ret < 0)
+ return ret;
+
+ return config_input(ctx->inputs[0]);
+}
+
static const AVFilterPad inputs[] = {
{
.name = "default",
AVFILTER_DEFINE_CLASS(pseudocolor);
-AVFilter ff_vf_pseudocolor = {
+const AVFilter ff_vf_pseudocolor = {
.name = "pseudocolor",
.description = NULL_IF_CONFIG_SMALL("Make pseudocolored video frames."),
.priv_size = sizeof(PseudoColorContext),
.query_formats = query_formats,
.inputs = inputs,
.outputs = outputs,
- .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
+ .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
+ .process_command = process_command,
};