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avfilter/vf_bilateral: add slice threading support

Paul B Mahol committed 5 years ago

Commit 7d463be1 parent 444cf3f1 file · +295 −166Browse files

Showing the changes to libavfilter (1 of 1 file). Show all

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libavfilter/vf_bilateral.c+295−166
@@ -36,6 +36,7 @@ typedef struct BilateralContext { · 35 unmodified lines
3636 float sigmaR;
3737 int planes;
3838
39+ int nb_threads;
3940 int nb_planes;
4041 int depth;
4142 int planewidth[4];
@@ -44,14 +45,14 @@ typedef struct BilateralContext { · 2 unmodified lines
4445 float alpha;
4546 float range_table[65536];
4647
47− float *img_out_f;
48− float *img_temp;
49− float *map_factor_a;
50− float *map_factor_b;
51− float *slice_factor_a;
52− float *slice_factor_b;
53− float *line_factor_a;
54− float *line_factor_b;
48+ float *img_out_f[4];
49+ float *img_temp[4];
50+ float *map_factor_a[4];
51+ float *map_factor_b[4];
52+ float *slice_factor_a[4];
53+ float *slice_factor_b[4];
54+ float *line_factor_a[4];
55+ float *line_factor_b[4];
5556 } BilateralContext;
5657
5758 #define OFFSET(x) offsetof(BilateralContext, x)
@@ -102,6 +103,10 @@ static int config_params(AVFilterContext *ctx) · 44 unmodified lines
102103 return 0;
103104 }
104105
106+typedef struct ThreadData {
107+ AVFrame *in, *out;
108+} ThreadData;
109+
105110 static int config_input(AVFilterLink *inlink)
106111 {
107112 AVFilterContext *ctx = inlink->dst;
@@ -109,7 +114,6 @@ static int config_input(AVFilterLink *inlink) · 1 unmodified line
109114 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
110115
111116 s->depth = desc->comp[0].depth;
112−
113117 config_params(ctx);
114118
115119 s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
@@ -118,133 +122,169 @@ static int config_input(AVFilterLink *inlink) · 2 unmodified lines
118122 s->planeheight[0] = s->planeheight[3] = inlink->h;
119123
120124 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
121−
122− s->img_out_f = av_calloc(inlink->w * inlink->h, sizeof(float));
123− s->img_temp = av_calloc(inlink->w * inlink->h, sizeof(float));
124− s->map_factor_a = av_calloc(inlink->w * inlink->h, sizeof(float));
125− s->map_factor_b = av_calloc(inlink->w * inlink->h, sizeof(float));
126− s->slice_factor_a = av_calloc(inlink->w, sizeof(float));
127− s->slice_factor_b = av_calloc(inlink->w, sizeof(float));
128− s->line_factor_a = av_calloc(inlink->w, sizeof(float));
129− s->line_factor_b = av_calloc(inlink->w, sizeof(float));
130−
131− if (!s->img_out_f ||
132− !s->img_temp ||
133− !s->map_factor_a ||
134− !s->map_factor_b ||
135− !s->slice_factor_a ||
136− !s->slice_factor_a ||
137− !s->line_factor_a ||
138− !s->line_factor_a)
139− return AVERROR(ENOMEM);
125+ s->nb_threads = ff_filter_get_nb_threads(ctx);
126+
127+ for (int p = 0; p < s->nb_planes; p++) {
128+ const int w = s->planewidth[p];
129+ const int h = s->planeheight[p];
130+
131+ s->img_out_f[p] = av_calloc(w * h, sizeof(float));
132+ s->img_temp[p] = av_calloc(w * h, sizeof(float));
133+ s->map_factor_a[p] = av_calloc(w * h, sizeof(float));
134+ s->map_factor_b[p] = av_calloc(w * h, sizeof(float));
135+ s->slice_factor_a[p] = av_calloc(w, sizeof(float));
136+ s->slice_factor_b[p] = av_calloc(w, sizeof(float));
137+ s->line_factor_a[p] = av_calloc(w, sizeof(float));
138+ s->line_factor_b[p] = av_calloc(w, sizeof(float));
139+
140+ if (!s->img_out_f[p] ||
141+ !s->img_temp[p] ||
142+ !s->map_factor_a[p] ||
143+ !s->map_factor_b[p] ||
144+ !s->slice_factor_a[p] ||
145+ !s->slice_factor_a[p] ||
146+ !s->line_factor_a[p] ||
147+ !s->line_factor_a[p])
148+ return AVERROR(ENOMEM);
149+ }
140150
141151 return 0;
142152 }
143153
144−#define BILATERAL(type, name) \
145−static void bilateral_##name(BilateralContext *s, const uint8_t *ssrc, uint8_t *ddst, \
146− int width, int height, int src_linesize, int dst_linesize) \
147−{ \
148− type *dst = (type *)ddst; \
149− const type *src = (const type *)ssrc; \
150− float *img_out_f = s->img_out_f, *img_temp = s->img_temp; \
151− float *map_factor_a = s->map_factor_a, *map_factor_b = s->map_factor_b; \
152− float *slice_factor_a = s->slice_factor_a, *slice_factor_b = s->slice_factor_b; \
153− float *line_factor_a = s->line_factor_a, *line_factor_b = s->line_factor_b; \
154− const float *range_table = s->range_table; \
155− const float alpha = s->alpha; \
156− float ypr, ycr, *ycy, *ypy, *xcy, fp, fc; \
157− const float inv_alpha_ = 1.f - alpha; \
158− float *ycf, *ypf, *xcf, *in_factor; \
159− const type *tcy, *tpy; \
160− int h1; \
161− \
162− for (int y = 0; y < height; y++) { \
163− float *temp_factor_x, *temp_x = &img_temp[y * width]; \
164− const type *in_x = &src[y * src_linesize]; \
165− const type *texture_x = &src[y * src_linesize]; \
166− type tpr; \
167− \
168− *temp_x++ = ypr = *in_x++; \
169− tpr = *texture_x++; \
170− \
171− temp_factor_x = &map_factor_a[y * width]; \
172− *temp_factor_x++ = fp = 1; \
173− \
174− for (int x = 1; x < width; x++) { \
175− float alpha_; \
176− int range_dist; \
177− type tcr = *texture_x++; \
178− type dr = abs(tcr - tpr); \
179− \
180− range_dist = dr; \
181− alpha_ = range_table[range_dist]; \
182− *temp_x++ = ycr = inv_alpha_*(*in_x++) + alpha_*ypr; \
183− tpr = tcr; \
184− ypr = ycr; \
185− *temp_factor_x++ = fc = inv_alpha_ + alpha_ * fp; \
186− fp = fc; \
187− } \
188− --temp_x; *temp_x = ((*temp_x) + (*--in_x)); \
189− tpr = *--texture_x; \
190− ypr = *in_x; \
191− \
192− --temp_factor_x; *temp_factor_x = ((*temp_factor_x) + 1); \
193− fp = 1; \
194− \
195− for (int x = width - 2; x >= 0; x--) { \
196− type tcr = *--texture_x; \
197− type dr = abs(tcr - tpr); \
198− int range_dist = dr; \
199− float alpha_ = range_table[range_dist]; \
200− \
201− ycr = inv_alpha_ * (*--in_x) + alpha_ * ypr; \
202− --temp_x; *temp_x = ((*temp_x) + ycr); \
203− tpr = tcr; \
204− ypr = ycr; \
205− \
206− fc = inv_alpha_ + alpha_*fp; \
207− --temp_factor_x; \
208− *temp_factor_x = ((*temp_factor_x) + fc); \
209− fp = fc; \
210− } \
211− } \
212− memcpy(img_out_f, img_temp, sizeof(float) * width); \
213− \
214− in_factor = map_factor_a; \
215− memcpy(map_factor_b, in_factor, sizeof(float) * width); \
216− for (int y = 1; y < height; y++) { \
217− tpy = &src[(y - 1) * src_linesize]; \
218− tcy = &src[y * src_linesize]; \
219− xcy = &img_temp[y * width]; \
220− ypy = &img_out_f[(y - 1) * width]; \
221− ycy = &img_out_f[y * width]; \
222− \
223− xcf = &in_factor[y * width]; \
224− ypf = &map_factor_b[(y - 1) * width]; \
225− ycf = &map_factor_b[y * width]; \
226− for (int x = 0; x < width; x++) { \
227− type dr = abs((*tcy++) - (*tpy++)); \
228− int range_dist = dr; \
229− float alpha_ = range_table[range_dist]; \
230− \
231− *ycy++ = inv_alpha_*(*xcy++) + alpha_*(*ypy++); \
232− *ycf++ = inv_alpha_*(*xcf++) + alpha_*(*ypf++); \
233− } \
234− } \
235− h1 = height - 1; \
236− ycf = line_factor_a; \
237− ypf = line_factor_b; \
238− memcpy(ypf, &in_factor[h1 * width], sizeof(float) * width); \
239− for (int x = 0; x < width; x++) \
240− map_factor_b[h1 * width + x] = (map_factor_b[h1 * width + x] + ypf[x]); \
241− \
242− ycy = slice_factor_a; \
243− ypy = slice_factor_b; \
244− memcpy(ypy, &img_temp[h1 * width], sizeof(float) * width); \
245− for (int x = 0, k = 0; x < width; x++) { \
246− int idx = h1 * width + x; \
247− img_out_f[idx] = (img_out_f[idx] + ypy[k++]) / map_factor_b[h1 * width + x]; \
154+#define BILATERAL_H(type, name) \
155+static void bilateralh_##name(BilateralContext *s, AVFrame *out, AVFrame *in, \
156+ int jobnr, int nb_jobs, int plane) \
157+{ \
158+ const int width = s->planewidth[plane]; \
159+ const int height = s->planeheight[plane]; \
160+ const int slice_start = (height * jobnr) / nb_jobs; \
161+ const int slice_end = (height * (jobnr+1)) / nb_jobs; \
162+ const int src_linesize = in->linesize[plane] / sizeof(type); \
163+ const type *src = (const type *)in->data[plane]; \
164+ float *img_temp = s->img_temp[plane]; \
165+ float *map_factor_a = s->map_factor_a[plane]; \
166+ const float *const range_table = s->range_table; \
167+ const float alpha = s->alpha; \
168+ float ypr, ycr, fp, fc; \
169+ const float inv_alpha_ = 1.f - alpha; \
170+ \
171+ for (int y = slice_start; y < slice_end; y++) { \
172+ float *temp_factor_x, *temp_x = &img_temp[y * width]; \
173+ const type *in_x = &src[y * src_linesize]; \
174+ const type *texture_x = &src[y * src_linesize]; \
175+ type tpr; \
176+ \
177+ *temp_x++ = ypr = *in_x++; \
178+ tpr = *texture_x++; \
179+ \
180+ temp_factor_x = &map_factor_a[y * width]; \
181+ *temp_factor_x++ = fp = 1; \
182+ \
183+ for (int x = 1; x < width; x++) { \
184+ float alpha_; \
185+ int range_dist; \
186+ type tcr = *texture_x++; \
187+ type dr = abs(tcr - tpr); \
188+ \
189+ range_dist = dr; \
190+ alpha_ = range_table[range_dist]; \
191+ *temp_x++ = ycr = inv_alpha_*(*in_x++) + alpha_*ypr; \
192+ tpr = tcr; \
193+ ypr = ycr; \
194+ *temp_factor_x++ = fc = inv_alpha_ + alpha_ * fp; \
195+ fp = fc; \
196+ } \
197+ --temp_x; *temp_x = ((*temp_x) + (*--in_x)); \
198+ tpr = *--texture_x; \
199+ ypr = *in_x; \
200+ \
201+ --temp_factor_x; *temp_factor_x = ((*temp_factor_x) + 1); \
202+ fp = 1; \
203+ \
204+ for (int x = width - 2; x >= 0; x--) { \
205+ type tcr = *--texture_x; \
206+ type dr = abs(tcr - tpr); \
207+ int range_dist = dr; \
208+ float alpha_ = range_table[range_dist]; \
209+ \
210+ ycr = inv_alpha_ * (*--in_x) + alpha_ * ypr; \
211+ --temp_x; *temp_x = ((*temp_x) + ycr); \
212+ tpr = tcr; \
213+ ypr = ycr; \
214+ \
215+ fc = inv_alpha_ + alpha_*fp; \
216+ --temp_factor_x; \
217+ *temp_factor_x = ((*temp_factor_x) + fc); \
218+ fp = fc; \
219+ } \
220+ } \
221+}
222+
223+BILATERAL_H(uint8_t, byte)
224+BILATERAL_H(uint16_t, word)
225+
226+#define BILATERAL_V(type, name) \
227+static void bilateralv_##name(BilateralContext *s, AVFrame *out, AVFrame *in, \
228+ int jobnr, int nb_jobs, int plane) \
229+{ \
230+ const int width = s->planewidth[plane]; \
231+ const int height = s->planeheight[plane]; \
232+ const int slice_start = (width * jobnr) / nb_jobs; \
233+ const int slice_end = (width * (jobnr+1)) / nb_jobs; \
234+ const int src_linesize = in->linesize[plane] / sizeof(type); \
235+ const type *src = (const type *)in->data[plane] + slice_start; \
236+ float *img_out_f = s->img_out_f[plane] + slice_start; \
237+ float *img_temp = s->img_temp[plane] + slice_start; \
238+ float *map_factor_a = s->map_factor_a[plane] + slice_start; \
239+ float *map_factor_b = s->map_factor_b[plane] + slice_start; \
240+ float *slice_factor_a = s->slice_factor_a[plane] + slice_start; \
241+ float *slice_factor_b = s->slice_factor_b[plane] + slice_start; \
242+ float *line_factor_a = s->line_factor_a[plane] + slice_start; \
243+ float *line_factor_b = s->line_factor_b[plane] + slice_start; \
244+ const float *const range_table = s->range_table; \
245+ const float alpha = s->alpha; \
246+ float *ycy, *ypy, *xcy; \
247+ const float inv_alpha_ = 1.f - alpha; \
248+ float *ycf, *ypf, *xcf, *in_factor; \
249+ const type *tcy, *tpy; \
250+ int h1; \
251+ \
252+ memcpy(img_out_f, img_temp, sizeof(float) * (slice_end - slice_start)); \
253+ \
254+ in_factor = map_factor_a; \
255+ memcpy(map_factor_b, in_factor, sizeof(float) * (slice_end - slice_start)); \
256+ for (int y = 1; y < height; y++) { \
257+ tpy = &src[(y - 1) * src_linesize]; \
258+ tcy = &src[y * src_linesize]; \
259+ xcy = &img_temp[y * width]; \
260+ ypy = &img_out_f[(y - 1) * width]; \
261+ ycy = &img_out_f[y * width]; \
262+ \
263+ xcf = &in_factor[y * width]; \
264+ ypf = &map_factor_b[(y - 1) * width]; \
265+ ycf = &map_factor_b[y * width]; \
266+ for (int x = 0; x < slice_end - slice_start; x++) { \
267+ type dr = abs((*tcy++) - (*tpy++)); \
268+ int range_dist = dr; \
269+ float alpha_ = range_table[range_dist]; \
270+ \
271+ *ycy++ = inv_alpha_*(*xcy++) + alpha_*(*ypy++); \
272+ *ycf++ = inv_alpha_*(*xcf++) + alpha_*(*ypf++); \
273+ } \
274+ } \
275+ h1 = height - 1; \
276+ ycf = line_factor_a; \
277+ ypf = line_factor_b; \
278+ memcpy(ypf, &in_factor[h1 * width], sizeof(float) * (slice_end - slice_start)); \
279+ for (int x = 0, k = 0; x < slice_end - slice_start; x++) \
280+ map_factor_b[h1 * width + x] = (map_factor_b[h1 * width + x] + ypf[k++]); \
281+ \
282+ ycy = slice_factor_a; \
283+ ypy = slice_factor_b; \
284+ memcpy(ypy, &img_temp[h1 * width], sizeof(float) * (slice_end - slice_start)); \
285+ for (int x = 0, k = 0; x < slice_end - slice_start; x++) { \
286+ int idx = h1 * width + x; \
287+ img_out_f[idx] = (img_out_f[idx] + ypy[k++]) / map_factor_b[h1 * width + x]; \
248288 } \
249289 \
250290 for (int y = h1 - 1; y >= 0; y--) { \
@@ -262,7 +302,7 @@ static void bilateral_##name(BilateralContext *s, const uint8_t *ssrc, uint8_t * · 11 unmodified lines
262302 ycf_ = ycf; \
263303 ypf_ = ypf; \
264304 factor_ = &map_factor_b[y * width]; \
265− for (int x = 0; x < width; x++) { \
305+ for (int x = 0; x < slice_end - slice_start; x++) { \
266306 type dr = abs((*tcy++) - (*tpy++)); \
267307 int range_dist = dr; \
268308 float alpha_ = range_table[range_dist]; \
@@ -281,20 +321,119 @@ static void bilateral_##name(BilateralContext *s, const uint8_t *ssrc, uint8_t * · 12 unmodified lines
281321 ypy = ycy; \
282322 ypf = ycf; \
283323 } \
284− \
285− for (int i = 0; i < height; i++) \
286− for (int j = 0; j < width; j++) \
287− dst[j + i * dst_linesize] = lrintf(img_out_f[i * width + j]); \
288324 }
289325
290−BILATERAL(uint8_t, byte)
291−BILATERAL(uint16_t, word)
326+BILATERAL_V(uint8_t, byte)
327+BILATERAL_V(uint16_t, word)
328+
329+#define BILATERAL_O(type, name) \
330+static void bilateralo_##name(BilateralContext *s, AVFrame *out, AVFrame *in, \
331+ int jobnr, int nb_jobs, int plane) \
332+{ \
333+ const int width = s->planewidth[plane]; \
334+ const int height = s->planeheight[plane]; \
335+ const int slice_start = (height * jobnr) / nb_jobs; \
336+ const int slice_end = (height * (jobnr+1)) / nb_jobs; \
337+ const int dst_linesize = out->linesize[plane] / sizeof(type); \
338+ \
339+ for (int i = slice_start; i < slice_end; i++) { \
340+ type *dst = (type *)out->data[plane] + i * dst_linesize; \
341+ const float *const img_out_f = s->img_out_f[plane] + i * width; \
342+ for (int j = 0; j < width; j++) \
343+ dst[j] = lrintf(img_out_f[j]); \
344+ } \
345+}
346+
347+BILATERAL_O(uint8_t, byte)
348+BILATERAL_O(uint16_t, word)
349+
350+static int bilateralh_planes(AVFilterContext *ctx, void *arg,
351+ int jobnr, int nb_jobs)
352+{
353+ BilateralContext *s = ctx->priv;
354+ ThreadData *td = arg;
355+ AVFrame *out = td->out;
356+ AVFrame *in = td->in;
357+
358+ for (int plane = 0; plane < s->nb_planes; plane++) {
359+ if (!(s->planes & (1 << plane)))
360+ continue;
361+
362+ if (s->depth <= 8)
363+ bilateralh_byte(s, out, in, jobnr, nb_jobs, plane);
364+ else
365+ bilateralh_word(s, out, in, jobnr, nb_jobs, plane);
366+ }
367+
368+ return 0;
369+}
370+
371+static int bilateralv_planes(AVFilterContext *ctx, void *arg,
372+ int jobnr, int nb_jobs)
373+{
374+ BilateralContext *s = ctx->priv;
375+ ThreadData *td = arg;
376+ AVFrame *out = td->out;
377+ AVFrame *in = td->in;
378+
379+ for (int plane = 0; plane < s->nb_planes; plane++) {
380+ if (!(s->planes & (1 << plane)))
381+ continue;
382+
383+ if (s->depth <= 8)
384+ bilateralv_byte(s, out, in, jobnr, nb_jobs, plane);
385+ else
386+ bilateralv_word(s, out, in, jobnr, nb_jobs, plane);
387+ }
388+
389+ return 0;
390+}
391+
392+static int bilateralo_planes(AVFilterContext *ctx, void *arg,
393+ int jobnr, int nb_jobs)
394+{
395+ BilateralContext *s = ctx->priv;
396+ ThreadData *td = arg;
397+ AVFrame *out = td->out;
398+ AVFrame *in = td->in;
399+
400+ for (int plane = 0; plane < s->nb_planes; plane++) {
401+ if (!(s->planes & (1 << plane))) {
402+ if (out != in) {
403+ const int height = s->planeheight[plane];
404+ const int slice_start = (height * jobnr) / nb_jobs;
405+ const int slice_end = (height * (jobnr+1)) / nb_jobs;
406+ const int width = s->planewidth[plane];
407+ const int linesize = in->linesize[plane];
408+ const int dst_linesize = out->linesize[plane];
409+ const uint8_t *src = in->data[plane];
410+ uint8_t *dst = out->data[plane];
411+
412+ av_image_copy_plane(dst + slice_start * dst_linesize,
413+ dst_linesize,
414+ src + slice_start * linesize,
415+ linesize,
416+ width * ((s->depth + 7) / 8),
417+ slice_end - slice_start);
418+ }
419+ continue;
420+ }
421+
422+ if (s->depth <= 8)
423+ bilateralo_byte(s, out, in, jobnr, nb_jobs, plane);
424+ else
425+ bilateralo_word(s, out, in, jobnr, nb_jobs, plane);
426+ }
427+
428+ return 0;
429+}
292430
293431 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
294432 {
295433 AVFilterContext *ctx = inlink->dst;
296434 BilateralContext *s = ctx->priv;
297435 AVFilterLink *outlink = ctx->outputs[0];
436+ ThreadData td;
298437 AVFrame *out;
299438
300439 if (av_frame_is_writable(in)) {
@@ -308,24 +447,11 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) · 7 unmodified lines
308447 av_frame_copy_props(out, in);
309448 }
310449
311− for (int plane = 0; plane < s->nb_planes; plane++) {
312− if (!(s->planes & (1 << plane))) {
313− if (out != in)
314− av_image_copy_plane(out->data[plane], out->linesize[plane],
315− in->data[plane], in->linesize[plane],
316− s->planewidth[plane] * ((s->depth + 7) / 8), s->planeheight[plane]);
317− continue;
318− }
319−
320− if (s->depth <= 8)
321− bilateral_byte(s, in->data[plane], out->data[plane],
322− s->planewidth[plane], s->planeheight[plane],
323− in->linesize[plane], out->linesize[plane]);
324− else
325− bilateral_word(s, in->data[plane], out->data[plane],
326− s->planewidth[plane], s->planeheight[plane],
327− in->linesize[plane] / 2, out->linesize[plane] / 2);
328− }
450+ td.in = in;
451+ td.out = out;
452+ ff_filter_execute(ctx, bilateralh_planes, &td, NULL, s->nb_threads);
453+ ff_filter_execute(ctx, bilateralv_planes, &td, NULL, s->nb_threads);
454+ ff_filter_execute(ctx, bilateralo_planes, &td, NULL, s->nb_threads);
329455
330456 if (out != in)
331457 av_frame_free(&in);
@@ -336,14 +462,16 @@ static av_cold void uninit(AVFilterContext *ctx) · 4 unmodified lines
336462 {
337463 BilateralContext *s = ctx->priv;
338464
339− av_freep(&s->img_out_f);
340− av_freep(&s->img_temp);
341− av_freep(&s->map_factor_a);
342− av_freep(&s->map_factor_b);
343− av_freep(&s->slice_factor_a);
344− av_freep(&s->slice_factor_b);
345− av_freep(&s->line_factor_a);
346− av_freep(&s->line_factor_b);
465+ for (int p = 0; p < s->nb_planes; p++) {
466+ av_freep(&s->img_out_f[p]);
467+ av_freep(&s->img_temp[p]);
468+ av_freep(&s->map_factor_a[p]);
469+ av_freep(&s->map_factor_b[p]);
470+ av_freep(&s->slice_factor_a[p]);
471+ av_freep(&s->slice_factor_b[p]);
472+ av_freep(&s->line_factor_a[p]);
473+ av_freep(&s->line_factor_b[p]);
474+ }
347475 }
348476
349477 static int process_command(AVFilterContext *ctx,
@@ -386,6 +514,7 @@ const AVFilter ff_vf_bilateral = { · 36 unmodified lines
386514 FILTER_INPUTS(bilateral_inputs),
387515 FILTER_OUTPUTS(bilateral_outputs),
388516 FILTER_PIXFMTS_ARRAY(pix_fmts),
389− .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
517+ .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC |
518+ AVFILTER_FLAG_SLICE_THREADS,
390519 .process_command = process_command,
391520 };

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