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51 static const char *
const var_names[] = {
"X",
"Y",
"W",
"H",
"SW",
"SH",
"T",
"N",
"A",
"B",
"TOP",
"BOTTOM",
NULL };
52 enum {
VAR_X,
VAR_Y,
VAR_W,
VAR_H,
VAR_SW,
VAR_SH,
VAR_T,
VAR_N,
VAR_A,
VAR_B,
VAR_TOP,
VAR_BOTTOM,
VAR_VARS_NB };
63 #define COMMON_OPTIONS \
64 { "c0_mode", "set component #0 blend mode", OFFSET(params[0].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode"},\
65 { "c1_mode", "set component #1 blend mode", OFFSET(params[1].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode"},\
66 { "c2_mode", "set component #2 blend mode", OFFSET(params[2].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode"},\
67 { "c3_mode", "set component #3 blend mode", OFFSET(params[3].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode"},\
68 { "all_mode", "set blend mode for all components", OFFSET(all_mode), AV_OPT_TYPE_INT, {.i64=-1},-1, BLEND_NB-1, FLAGS, "mode"},\
69 { "addition", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_ADDITION}, 0, 0, FLAGS, "mode" },\
70 { "addition128","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINMERGE}, 0, 0, FLAGS, "mode" },\
71 { "grainmerge", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINMERGE}, 0, 0, FLAGS, "mode" },\
72 { "and", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_AND}, 0, 0, FLAGS, "mode" },\
73 { "average", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_AVERAGE}, 0, 0, FLAGS, "mode" },\
74 { "burn", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_BURN}, 0, 0, FLAGS, "mode" },\
75 { "darken", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DARKEN}, 0, 0, FLAGS, "mode" },\
76 { "difference", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DIFFERENCE}, 0, 0, FLAGS, "mode" },\
77 { "difference128", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINEXTRACT}, 0, 0, FLAGS, "mode" },\
78 { "grainextract", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINEXTRACT}, 0, 0, FLAGS, "mode" },\
79 { "divide", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DIVIDE}, 0, 0, FLAGS, "mode" },\
80 { "dodge", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DODGE}, 0, 0, FLAGS, "mode" },\
81 { "exclusion", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_EXCLUSION}, 0, 0, FLAGS, "mode" },\
82 { "extremity", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_EXTREMITY}, 0, 0, FLAGS, "mode" },\
83 { "freeze", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_FREEZE}, 0, 0, FLAGS, "mode" },\
84 { "glow", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GLOW}, 0, 0, FLAGS, "mode" },\
85 { "hardlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HARDLIGHT}, 0, 0, FLAGS, "mode" },\
86 { "hardmix", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HARDMIX}, 0, 0, FLAGS, "mode" },\
87 { "heat", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HEAT}, 0, 0, FLAGS, "mode" },\
88 { "lighten", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_LIGHTEN}, 0, 0, FLAGS, "mode" },\
89 { "linearlight","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_LINEARLIGHT},0, 0, FLAGS, "mode" },\
90 { "multiply", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_MULTIPLY}, 0, 0, FLAGS, "mode" },\
91 { "multiply128","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_MULTIPLY128},0, 0, FLAGS, "mode" },\
92 { "negation", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_NEGATION}, 0, 0, FLAGS, "mode" },\
93 { "normal", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_NORMAL}, 0, 0, FLAGS, "mode" },\
94 { "or", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_OR}, 0, 0, FLAGS, "mode" },\
95 { "overlay", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_OVERLAY}, 0, 0, FLAGS, "mode" },\
96 { "phoenix", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_PHOENIX}, 0, 0, FLAGS, "mode" },\
97 { "pinlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_PINLIGHT}, 0, 0, FLAGS, "mode" },\
98 { "reflect", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_REFLECT}, 0, 0, FLAGS, "mode" },\
99 { "screen", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SCREEN}, 0, 0, FLAGS, "mode" },\
100 { "softlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SOFTLIGHT}, 0, 0, FLAGS, "mode" },\
101 { "subtract", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SUBTRACT}, 0, 0, FLAGS, "mode" },\
102 { "vividlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_VIVIDLIGHT}, 0, 0, FLAGS, "mode" },\
103 { "xor", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_XOR}, 0, 0, FLAGS, "mode" },\
104 { "c0_expr", "set color component #0 expression", OFFSET(params[0].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },\
105 { "c1_expr", "set color component #1 expression", OFFSET(params[1].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },\
106 { "c2_expr", "set color component #2 expression", OFFSET(params[2].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },\
107 { "c3_expr", "set color component #3 expression", OFFSET(params[3].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },\
108 { "all_expr", "set expression for all color components", OFFSET(all_expr), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },\
109 { "c0_opacity", "set color component #0 opacity", OFFSET(params[0].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },\
110 { "c1_opacity", "set color component #1 opacity", OFFSET(params[1].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },\
111 { "c2_opacity", "set color component #2 opacity", OFFSET(params[2].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },\
112 { "c3_opacity", "set color component #3 opacity", OFFSET(params[3].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },\
113 { "all_opacity", "set opacity for all color components", OFFSET(all_opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}
115 #define OFFSET(x) offsetof(BlendContext, x)
116 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
125 #define COPY(src, depth) \
126 static void blend_copy ## src##_##depth(const uint8_t *top, ptrdiff_t top_linesize, \
127 const uint8_t *bottom, ptrdiff_t bottom_linesize,\
128 uint8_t *dst, ptrdiff_t dst_linesize, \
129 ptrdiff_t width, ptrdiff_t height, \
130 FilterParams *param, double *values, int starty) \
132 av_image_copy_plane(dst, dst_linesize, src, src ## _linesize, \
133 width * depth / 8, height); \
148 const uint8_t *bottom, ptrdiff_t bottom_linesize,
149 uint8_t *dst, ptrdiff_t dst_linesize,
153 const double opacity = param->
opacity;
157 for (j = 0; j <
width; j++) {
158 dst[j] = top[j] * opacity + bottom[j] * (1. - opacity);
162 bottom += bottom_linesize;
167 const uint8_t *_bottom, ptrdiff_t bottom_linesize,
168 uint8_t *_dst, ptrdiff_t dst_linesize,
172 const uint16_t *top = (uint16_t*)_top;
173 const uint16_t *bottom = (uint16_t*)_bottom;
174 uint16_t *dst = (uint16_t*)_dst;
175 const double opacity = param->
opacity;
179 bottom_linesize /= 2;
182 for (j = 0; j <
width; j++) {
183 dst[j] = top[j] * opacity + bottom[j] * (1. - opacity);
187 bottom += bottom_linesize;
192 const uint8_t *_bottom, ptrdiff_t bottom_linesize,
193 uint8_t *_dst, ptrdiff_t dst_linesize,
197 const float *top = (
float*)_top;
198 const float *bottom = (
float*)_bottom;
199 float *dst = (
float*)_dst;
200 const double opacity = param->
opacity;
204 bottom_linesize /= 4;
207 for (j = 0; j <
width; j++) {
208 dst[j] = top[j] * opacity + bottom[j] * (1. - opacity);
212 bottom += bottom_linesize;
216 #define DEFINE_BLEND8(name, expr) \
217 static void blend_## name##_8bit(const uint8_t *top, ptrdiff_t top_linesize, \
218 const uint8_t *bottom, ptrdiff_t bottom_linesize, \
219 uint8_t *dst, ptrdiff_t dst_linesize, \
220 ptrdiff_t width, ptrdiff_t height, \
221 FilterParams *param, double *values, int starty) \
223 double opacity = param->opacity; \
226 for (i = 0; i < height; i++) { \
227 for (j = 0; j < width; j++) { \
228 dst[j] = top[j] + ((expr) - top[j]) * opacity; \
230 dst += dst_linesize; \
231 top += top_linesize; \
232 bottom += bottom_linesize; \
236 #define DEFINE_BLEND16(name, expr, depth) \
237 static void blend_## name##_##depth##bit(const uint8_t *_top, ptrdiff_t top_linesize,\
238 const uint8_t *_bottom, ptrdiff_t bottom_linesize, \
239 uint8_t *_dst, ptrdiff_t dst_linesize, \
240 ptrdiff_t width, ptrdiff_t height, \
241 FilterParams *param, double *values, int starty) \
243 const uint16_t *top = (const uint16_t*)_top; \
244 const uint16_t *bottom = (const uint16_t*)_bottom; \
245 uint16_t *dst = (uint16_t*)_dst; \
246 double opacity = param->opacity; \
250 bottom_linesize /= 2; \
252 for (i = 0; i < height; i++) { \
253 for (j = 0; j < width; j++) { \
254 dst[j] = top[j] + ((expr) - top[j]) * opacity; \
256 dst += dst_linesize; \
257 top += top_linesize; \
258 bottom += bottom_linesize; \
262 #define DEFINE_BLEND32(name, expr, depth) \
263 static void blend_## name##_##depth##bit(const uint8_t *_top, ptrdiff_t top_linesize,\
264 const uint8_t *_bottom, ptrdiff_t bottom_linesize, \
265 uint8_t *_dst, ptrdiff_t dst_linesize, \
266 ptrdiff_t width, ptrdiff_t height, \
267 FilterParams *param, double *values, int starty) \
269 const float *top = (const float*)_top; \
270 const float *bottom = (const float*)_bottom; \
271 float *dst = (float*)_dst; \
272 double opacity = param->opacity; \
276 bottom_linesize /= 4; \
278 for (i = 0; i < height; i++) { \
279 for (j = 0; j < width; j++) { \
280 dst[j] = top[j] + ((expr) - top[j]) * opacity; \
282 dst += dst_linesize; \
283 top += top_linesize; \
284 bottom += bottom_linesize; \
291 #define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 255))
292 #define SCREEN(x, a, b) (255 - (x) * ((255 - (a)) * (255 - (b)) / 255))
293 #define BURN(a, b) (((a) == 0) ? (a) : FFMAX(0, 255 - ((255 - (b)) << 8) / (a)))
294 #define DODGE(a, b) (((a) == 255) ? (a) : FFMIN(255, (((b) << 8) / (255 - (a)))))
317 DEFINE_BLEND8(softlight, (
A > 127) ?
B + (255 -
B) * (
A - 127.5) / 127.5 * (0.5 - fabs(
B - 127.5) / 255):
B -
B * ((127.5 -
A) / 127.5) * (0.5 - fabs(
B - 127.5)/255))
327 DEFINE_BLEND8(linearlight,av_clip_uint8((
B < 128) ?
B + 2 *
A - 255 :
B + 2 * (
A - 128)))
334 #define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 65535))
335 #define SCREEN(x, a, b) (65535 - (x) * ((65535 - (a)) * (65535 - (b)) / 65535))
336 #define BURN(a, b) (((a) == 0) ? (a) : FFMAX(0, 65535 - ((65535 - (b)) << 16) / (a)))
337 #define DODGE(a, b) (((a) == 65535) ? (a) : FFMIN(65535, (((b) << 16) / (65535 - (a)))))
344 DEFINE_BLEND16(multiply128, av_clip_uint16((
A - 32768) *
B / 8192. + 32768), 16)
360 DEFINE_BLEND16(softlight, (
A > 32767) ?
B + (65535 -
B) * (
A - 32767.5) / 32767.5 * (0.5 - fabs(
B - 32767.5) / 65535):
B -
B * ((32767.5 -
A) / 32767.5) * (0.5 - fabs(
B - 32767.5)/65535), 16)
370 DEFINE_BLEND16(linearlight,av_clip_uint16((
B < 32768) ?
B + 2 *
A - 65535 :
B + 2 * (
A - 32768)), 16)
377 #define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 1023))
378 #define SCREEN(x, a, b) (1023 - (x) * ((1023 - (a)) * (1023 - (b)) / 1023))
379 #define BURN(a, b) (((a) == 0) ? (a) : FFMAX(0, 1023 - ((1023 - (b)) << 10) / (a)))
380 #define DODGE(a, b) (((a) == 1023) ? (a) : FFMIN(1023, (((b) << 10) / (1023 - (a)))))
387 DEFINE_BLEND16(multiply128, (
int)av_clip_uintp2((
A - 512) *
B / 128. + 512, 10), 10)
400 DEFINE_BLEND16(divide, (
int)av_clip_uintp2(
B == 0 ? 1023 : 1023 *
A /
B, 10), 10)
403 DEFINE_BLEND16(softlight, (
A > 511) ?
B + (1023 -
B) * (
A - 511.5) / 511.5 * (0.5 - fabs(
B - 511.5) / 1023):
B -
B * ((511.5 -
A) / 511.5) * (0.5 - fabs(
B - 511.5)/1023), 10)
413 DEFINE_BLEND16(linearlight,(
int)av_clip_uintp2((
B < 512) ?
B + 2 *
A - 1023 :
B + 2 * (
A - 512), 10), 10)
420 #define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 4095))
421 #define SCREEN(x, a, b) (4095 - (x) * ((4095 - (a)) * (4095 - (b)) / 4095))
422 #define BURN(a, b) (((a) == 0) ? (a) : FFMAX(0, 4095 - ((4095 - (b)) << 12) / (a)))
423 #define DODGE(a, b) (((a) == 4095) ? (a) : FFMIN(4095, (((b) << 12) / (4095 - (a)))))
430 DEFINE_BLEND16(multiply128, (
int)av_clip_uintp2((
A - 2048) *
B / 512. + 2048, 12), 12)
443 DEFINE_BLEND16(divide, (
int)av_clip_uintp2(
B == 0 ? 4095 : 4095 *
A /
B, 12), 12)
446 DEFINE_BLEND16(softlight, (
A > 2047) ?
B + (4095 -
B) * (
A - 2047.5) / 2047.5 * (0.5 - fabs(
B - 2047.5) / 4095):
B -
B * ((2047.5 -
A) / 2047.5) * (0.5 - fabs(
B - 2047.5)/4095), 12)
456 DEFINE_BLEND16(linearlight,(
int)av_clip_uintp2((
B < 2048) ?
B + 2 *
A - 4095 :
B + 2 * (
A - 2048), 12), 12)
463 #define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 511))
464 #define SCREEN(x, a, b) (511 - (x) * ((511 - (a)) * (511 - (b)) / 511))
465 #define BURN(a, b) (((a) == 0) ? (a) : FFMAX(0, 511 - ((511 - (b)) << 9) / (a)))
466 #define DODGE(a, b) (((a) == 511) ? (a) : FFMIN(511, (((b) << 9) / (511 - (a)))))
473 DEFINE_BLEND16(multiply128, (
int)av_clip_uintp2((
A - 256) *
B / 64. + 256, 9), 9)
489 DEFINE_BLEND16(softlight, (
A > 511) ?
B + (511 -
B) * (
A - 511.5) / 511.5 * (0.5 - fabs(
B - 511.5) / 511):
B -
B * ((511.5 -
A) / 511.5) * (0.5 - fabs(
B - 511.5)/511), 9)
499 DEFINE_BLEND16(linearlight,(
int)av_clip_uintp2((
B < 256) ?
B + 2 *
A - 511 :
B + 2 * (
A - 256), 9), 9)
506 #define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 1.0))
507 #define SCREEN(x, a, b) (1.0 - (x) * ((1.0 - (a)) * (1.0 - (b)) / 1.0))
508 #define BURN(a, b) (((a) <= 0.0) ? (a) : FFMAX(0.0, 1.0 - (1.0 - (b)) / (a)))
509 #define DODGE(a, b) (((a) >= 1.0) ? (a) : FFMIN(1.0, ((b) / (1.0 - (a)))))
532 DEFINE_BLEND32(softlight, (
A > 0.5) ?
B + (1.0 -
B) * (
A - 0.5) / 0.5 * (0.5 - fabs(
B - 0.5) / 1.0):
B -
B * ((0.5 -
A) / 0.5) * (0.5 - fabs(
B - 0.5)/1.0), 32)
544 #define DEFINE_BLEND_EXPR(type, name, div) \
545 static void blend_expr_## name(const uint8_t *_top, ptrdiff_t top_linesize, \
546 const uint8_t *_bottom, ptrdiff_t bottom_linesize, \
547 uint8_t *_dst, ptrdiff_t dst_linesize, \
548 ptrdiff_t width, ptrdiff_t height, \
549 FilterParams *param, double *values, int starty) \
551 const type *top = (type*)_top; \
552 const type *bottom = (type*)_bottom; \
553 type *dst = (type*)_dst; \
554 AVExpr *e = param->e; \
556 dst_linesize /= div; \
557 top_linesize /= div; \
558 bottom_linesize /= div; \
560 for (y = 0; y < height; y++) { \
561 values[VAR_Y] = y + starty; \
562 for (x = 0; x < width; x++) { \
564 values[VAR_TOP] = values[VAR_A] = top[x]; \
565 values[VAR_BOTTOM] = values[VAR_B] = bottom[x]; \
566 dst[x] = av_expr_eval(e, values, NULL); \
568 dst += dst_linesize; \
569 top += top_linesize; \
570 bottom += bottom_linesize; \
581 int slice_start = (
td->h * jobnr ) / nb_jobs;
585 const uint8_t *bottom =
td->bottom->data[
td->plane];
596 td->param->blend(top + slice_start *
td->top->linesize[
td->plane],
597 td->top->linesize[
td->plane],
598 bottom + slice_start *
td->bottom->linesize[
td->plane],
599 td->bottom->linesize[
td->plane],
600 dst + slice_start *
td->dst->linesize[
td->plane],
601 td->dst->linesize[
td->plane],
620 for (plane = 0; plane <
s->nb_planes; plane++) {
621 int hsub = plane == 1 || plane == 2 ?
s->hsub : 0;
622 int vsub = plane == 1 || plane == 2 ?
s->vsub : 0;
626 ThreadData td = { .top = top_buf, .bottom = bottom_buf, .dst = dst_buf,
627 .w = outw, .h = outh, .param = param, .plane = plane,
642 AVFrame *top_buf, *bottom_buf, *dst_buf;
658 s->tblend = !strcmp(
ctx->filter->name,
"tblend");
704 #define DEFINE_INIT_BLEND_FUNC(depth, nbits) \
705 static av_cold void init_blend_func_##depth##_##nbits##bit(FilterParams *param) \
707 switch (param->mode) { \
708 case BLEND_ADDITION: param->blend = blend_addition_##depth##bit; break; \
709 case BLEND_GRAINMERGE: param->blend = blend_grainmerge_##depth##bit; break; \
710 case BLEND_AND: param->blend = blend_and_##depth##bit; break; \
711 case BLEND_AVERAGE: param->blend = blend_average_##depth##bit; break; \
712 case BLEND_BURN: param->blend = blend_burn_##depth##bit; break; \
713 case BLEND_DARKEN: param->blend = blend_darken_##depth##bit; break; \
714 case BLEND_DIFFERENCE: param->blend = blend_difference_##depth##bit; break; \
715 case BLEND_GRAINEXTRACT: param->blend = blend_grainextract_##depth##bit; break; \
716 case BLEND_DIVIDE: param->blend = blend_divide_##depth##bit; break; \
717 case BLEND_DODGE: param->blend = blend_dodge_##depth##bit; break; \
718 case BLEND_EXCLUSION: param->blend = blend_exclusion_##depth##bit; break; \
719 case BLEND_EXTREMITY: param->blend = blend_extremity_##depth##bit; break; \
720 case BLEND_FREEZE: param->blend = blend_freeze_##depth##bit; break; \
721 case BLEND_GLOW: param->blend = blend_glow_##depth##bit; break; \
722 case BLEND_HARDLIGHT: param->blend = blend_hardlight_##depth##bit; break; \
723 case BLEND_HARDMIX: param->blend = blend_hardmix_##depth##bit; break; \
724 case BLEND_HEAT: param->blend = blend_heat_##depth##bit; break; \
725 case BLEND_LIGHTEN: param->blend = blend_lighten_##depth##bit; break; \
726 case BLEND_LINEARLIGHT: param->blend = blend_linearlight_##depth##bit; break; \
727 case BLEND_MULTIPLY: param->blend = blend_multiply_##depth##bit; break; \
728 case BLEND_MULTIPLY128: param->blend = blend_multiply128_##depth##bit; break; \
729 case BLEND_NEGATION: param->blend = blend_negation_##depth##bit; break; \
730 case BLEND_NORMAL: param->blend = blend_normal_##nbits##bit; break; \
731 case BLEND_OR: param->blend = blend_or_##depth##bit; break; \
732 case BLEND_OVERLAY: param->blend = blend_overlay_##depth##bit; break; \
733 case BLEND_PHOENIX: param->blend = blend_phoenix_##depth##bit; break; \
734 case BLEND_PINLIGHT: param->blend = blend_pinlight_##depth##bit; break; \
735 case BLEND_REFLECT: param->blend = blend_reflect_##depth##bit; break; \
736 case BLEND_SCREEN: param->blend = blend_screen_##depth##bit; break; \
737 case BLEND_SOFTLIGHT: param->blend = blend_softlight_##depth##bit; break; \
738 case BLEND_SUBTRACT: param->blend = blend_subtract_##depth##bit; break; \
739 case BLEND_VIVIDLIGHT: param->blend = blend_vividlight_##depth##bit; break; \
740 case BLEND_XOR: param->blend = blend_xor_##depth##bit; break; \
754 init_blend_func_8_8bit(param);
757 init_blend_func_9_16bit(param);
760 init_blend_func_10_16bit(param);
763 init_blend_func_12_16bit(param);
766 init_blend_func_16_16bit(param);
769 init_blend_func_32_32bit(param);
773 if (param->opacity == 0 && param->mode !=
BLEND_NORMAL) {
774 param->blend = depth > 8 ? depth > 16 ? blend_copytop_32 : blend_copytop_16 : blend_copytop_8;
776 if (param->opacity == 1)
777 param->blend = depth > 8 ? depth > 16 ? blend_copytop_32 : blend_copytop_16 : blend_copytop_8;
778 else if (param->opacity == 0)
779 param->blend = depth > 8 ? depth > 16 ? blend_copybottom_32 : blend_copybottom_16 : blend_copybottom_8;
801 if (toplink->
w != bottomlink->
w || toplink->
h != bottomlink->
h) {
803 "(size %dx%d) do not match the corresponding "
804 "second input link %s parameters (size %dx%d)\n",
805 ctx->input_pads[
TOP].name, toplink->
w, toplink->
h,
806 ctx->input_pads[
BOTTOM].name, bottomlink->
w, bottomlink->
h);
811 outlink->
w = toplink->
w;
812 outlink->
h = toplink->
h;
830 if (
s->all_mode >= 0)
831 param->
mode =
s->all_mode;
832 if (
s->all_opacity < 1)
847 param->
blend =
s->depth > 8 ?
s->depth > 16 ? blend_expr_32bit : blend_expr_16bit : blend_expr_8bit;
860 #if CONFIG_BLEND_FILTER
891 .preinit = blend_framesync_preinit,
899 .priv_class = &blend_class,
905 #if CONFIG_TBLEND_FILTER
916 if (
ctx->is_disabled)
928 static const AVOption tblend_options[] = {
939 .filter_frame = tblend_filter_frame,
957 .priv_class = &tblend_class,
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
#define AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_GBRAP16
int vsub
chroma subsampling values
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
AVPixelFormat
Pixel format.
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
#define DEFINE_BLEND32(name, expr, depth)
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define AV_PIX_FMT_YUVA422P9
This structure describes decoded (raw) audio or video data.
#define AV_PIX_FMT_YUVA420P16
int depth
Number of bits in the component.
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUV420P10
static void blend_normal_8bit(const uint8_t *top, ptrdiff_t top_linesize, const uint8_t *bottom, ptrdiff_t bottom_linesize, uint8_t *dst, ptrdiff_t dst_linesize, ptrdiff_t width, ptrdiff_t height, FilterParams *param, double *values, int starty)
static void blend_normal_32bit(const uint8_t *_top, ptrdiff_t top_linesize, const uint8_t *_bottom, ptrdiff_t bottom_linesize, uint8_t *_dst, ptrdiff_t dst_linesize, ptrdiff_t width, ptrdiff_t height, FilterParams *param, double *values, int starty)
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
static const char *const var_names[]
const char * name
Filter name.
static av_always_inline uint32_t av_float2int(float f)
Reinterpret a float as a 32-bit integer.
AVFormatInternal * internal
An opaque field for libavformat internal usage.
A link between two filters.
#define AV_PIX_FMT_YUVA422P10
int av_expr_parse(AVExpr **expr, const char *s, const char *const *const_names, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), int log_offset, void *log_ctx)
Parse an expression.
#define bit(string, value)
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
#define AV_PIX_FMT_YUVA420P9
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
static av_always_inline float av_int2float(uint32_t i)
Reinterpret a 32-bit integer as a float.
#define AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_YUVA444P16
static void blend_normal_16bit(const uint8_t *_top, ptrdiff_t top_linesize, const uint8_t *_bottom, ptrdiff_t bottom_linesize, uint8_t *_dst, ptrdiff_t dst_linesize, ptrdiff_t width, ptrdiff_t height, FilterParams *param, double *values, int starty)
#define AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_GRAY16
#define DEFINE_BLEND8(name, expr)
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
#define DEFINE_BLEND_EXPR(type, name, div)
static const AVOption blend_options[]
A filter pad used for either input or output.
#define AV_PIX_FMT_YUV444P10
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define AV_PIX_FMT_YUV422P16
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
#define AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP12
#define MULTIPLY(x, a, b)
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
#define AV_PIX_FMT_YUV444P16
#define AV_CEIL_RSHIFT(a, b)
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
static double av_q2d(AVRational a)
Convert an AVRational to a double.
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
static const AVFilterPad outputs[]
AVRational frame_rate
Frame rate of the stream on the link, or 1/0 if unknown or variable; if left to 0/0,...
static enum AVPixelFormat pix_fmts[]
#define AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P16
static SoftFloat_IEEE754 multiply(SoftFloat_IEEE754 a, SoftFloat_IEEE754 b)
multiply two softfloats and handle the rounding off
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
#define AV_PIX_FMT_GRAYF32
FRAMESYNC_DEFINE_CLASS(blend, BlendContext, fs)
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
#define AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GBRP16
Describe the class of an AVClass context structure.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
#define fs(width, name, subs,...)
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
filter_frame For filters that do not use the activate() callback
#define AV_PIX_FMT_YUV440P10
static av_cold int init(AVFilterContext *ctx)
void ff_blend_init_x86(FilterParams *param, int depth)
#define DEFINE_INIT_BLEND_FUNC(depth, nbits)
#define AV_PIX_FMT_YUV422P10
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
int ff_framesync_init_dualinput(FFFrameSync *fs, AVFilterContext *parent)
Initialize a frame sync structure for dualinput.
#define DEFINE_BLEND16(name, expr, depth)
#define AV_PIX_FMT_GBRPF32
int format
agreed upon media format
#define AV_PIX_FMT_YUV422P12
static int query_formats(AVFilterContext *ctx)
#define AV_NOPTS_VALUE
Undefined timestamp value.
#define AV_PIX_FMT_YUV444P12
AVFilterContext * src
source filter
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
#define AV_PIX_FMT_YUVA444P10
#define AVFILTER_DEFINE_CLASS(fname)
#define i(width, name, range_min, range_max)
int w
agreed upon image width
#define AV_PIX_FMT_GBRP12
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Used for passing data between threads.
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
const char * name
Pad name.
#define AV_PIX_FMT_YUV444P9
void ff_blend_init(FilterParams *param, int depth)
static int config_output(AVFilterLink *outlink)
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
#define AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUV420P12
#define FF_ARRAY_ELEMS(a)
int h
agreed upon image height
static AVFrame * blend_frame(AVFilterContext *ctx, AVFrame *top_buf, const AVFrame *bottom_buf)
#define AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_GBRAPF32
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return values
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link.
static av_cold void uninit(AVFilterContext *ctx)
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
char * av_strdup(const char *s)
Duplicate a string.
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
static int blend_frame_for_dualinput(FFFrameSync *fs)
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
void(* blend)(const uint8_t *top, ptrdiff_t top_linesize, const uint8_t *bottom, ptrdiff_t bottom_linesize, uint8_t *dst, ptrdiff_t dst_linesize, ptrdiff_t width, ptrdiff_t height, struct FilterParams *param, double *values, int starty)
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
#define flags(name, subs,...)
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
#define AV_PIX_FMT_YUV440P12
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
int ff_framesync_dualinput_get(FFFrameSync *fs, AVFrame **f0, AVFrame **f1)
#define AV_PIX_FMT_GRAY12
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)