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 OFFSET(x) offsetof(BlendContext, x) 64 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM 122 #define COPY(src, depth) \ 123 static void blend_copy ## src##_##depth(const uint8_t *top, ptrdiff_t top_linesize, \ 124 const uint8_t *bottom, ptrdiff_t bottom_linesize,\ 125 uint8_t *dst, ptrdiff_t dst_linesize, \ 126 ptrdiff_t width, ptrdiff_t height, \ 127 FilterParams *param, double *values, int starty) \ 129 av_image_copy_plane(dst, dst_linesize, src, src ## _linesize, \ 130 width * depth / 8, height); \ 145 const uint8_t *bottom, ptrdiff_t bottom_linesize,
146 uint8_t *dst, ptrdiff_t dst_linesize,
150 const double opacity = param->
opacity;
153 for (i = 0; i <
height; i++) {
154 for (j = 0; j <
width; j++) {
155 dst[j] = top[j] * opacity + bottom[j] * (1. - opacity);
159 bottom += bottom_linesize;
164 const uint8_t *_bottom, ptrdiff_t bottom_linesize,
165 uint8_t *_dst, ptrdiff_t dst_linesize,
169 const uint16_t *top = (uint16_t*)_top;
170 const uint16_t *bottom = (uint16_t*)_bottom;
171 uint16_t *dst = (uint16_t*)_dst;
172 const double opacity = param->
opacity;
176 bottom_linesize /= 2;
178 for (i = 0; i <
height; i++) {
179 for (j = 0; j <
width; j++) {
180 dst[j] = top[j] * opacity + bottom[j] * (1. - opacity);
184 bottom += bottom_linesize;
189 const uint8_t *_bottom, ptrdiff_t bottom_linesize,
190 uint8_t *_dst, ptrdiff_t dst_linesize,
194 const float *top = (
float*)_top;
195 const float *bottom = (
float*)_bottom;
196 float *dst = (
float*)_dst;
197 const double opacity = param->
opacity;
201 bottom_linesize /= 4;
203 for (i = 0; i <
height; i++) {
204 for (j = 0; j <
width; j++) {
205 dst[j] = top[j] * opacity + bottom[j] * (1. - opacity);
209 bottom += bottom_linesize;
213 #define DEFINE_BLEND8(name, expr) \ 214 static void blend_## name##_8bit(const uint8_t *top, ptrdiff_t top_linesize, \ 215 const uint8_t *bottom, ptrdiff_t bottom_linesize, \ 216 uint8_t *dst, ptrdiff_t dst_linesize, \ 217 ptrdiff_t width, ptrdiff_t height, \ 218 FilterParams *param, double *values, int starty) \ 220 double opacity = param->opacity; \ 223 for (i = 0; i < height; i++) { \ 224 for (j = 0; j < width; j++) { \ 225 dst[j] = top[j] + ((expr) - top[j]) * opacity; \ 227 dst += dst_linesize; \ 228 top += top_linesize; \ 229 bottom += bottom_linesize; \ 233 #define DEFINE_BLEND16(name, expr, depth) \ 234 static void blend_## name##_##depth##bit(const uint8_t *_top, ptrdiff_t top_linesize,\ 235 const uint8_t *_bottom, ptrdiff_t bottom_linesize, \ 236 uint8_t *_dst, ptrdiff_t dst_linesize, \ 237 ptrdiff_t width, ptrdiff_t height, \ 238 FilterParams *param, double *values, int starty) \ 240 const uint16_t *top = (const uint16_t*)_top; \ 241 const uint16_t *bottom = (const uint16_t*)_bottom; \ 242 uint16_t *dst = (uint16_t*)_dst; \ 243 double opacity = param->opacity; \ 247 bottom_linesize /= 2; \ 249 for (i = 0; i < height; i++) { \ 250 for (j = 0; j < width; j++) { \ 251 dst[j] = top[j] + ((expr) - top[j]) * opacity; \ 253 dst += dst_linesize; \ 254 top += top_linesize; \ 255 bottom += bottom_linesize; \ 259 #define DEFINE_BLEND32(name, expr, depth) \ 260 static void blend_## name##_##depth##bit(const uint8_t *_top, ptrdiff_t top_linesize,\ 261 const uint8_t *_bottom, ptrdiff_t bottom_linesize, \ 262 uint8_t *_dst, ptrdiff_t dst_linesize, \ 263 ptrdiff_t width, ptrdiff_t height, \ 264 FilterParams *param, double *values, int starty) \ 266 const float *top = (const float*)_top; \ 267 const float *bottom = (const float*)_bottom; \ 268 float *dst = (float*)_dst; \ 269 double opacity = param->opacity; \ 273 bottom_linesize /= 4; \ 275 for (i = 0; i < height; i++) { \ 276 for (j = 0; j < width; j++) { \ 277 dst[j] = top[j] + ((expr) - top[j]) * opacity; \ 279 dst += dst_linesize; \ 280 top += top_linesize; \ 281 bottom += bottom_linesize; \ 288 #define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 255)) 289 #define SCREEN(x, a, b) (255 - (x) * ((255 - (a)) * (255 - (b)) / 255)) 290 #define BURN(a, b) (((a) == 0) ? (a) : FFMAX(0, 255 - ((255 - (b)) << 8) / (a))) 291 #define DODGE(a, b) (((a) == 255) ? (a) : FFMIN(255, (((b) << 8) / (255 - (a))))) 304 DEFINE_BLEND8(overlay, (A < 128) ? MULTIPLY(2, A,
B) : SCREEN(2, A,
B))
305 DEFINE_BLEND8(hardlight, (
B < 128) ? MULTIPLY(2,
B, A) : SCREEN(2, B, A))
314 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))
319 DEFINE_BLEND8(glow, (A == 255) ? A : FFMIN(255, (B * B / (255 - A))))
331 #define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 65535)) 332 #define SCREEN(x, a, b) (65535 - (x) * ((65535 - (a)) * (65535 - (b)) / 65535)) 333 #define BURN(a, b) (((a) == 0) ? (a) : FFMAX(0, 65535 - ((65535 - (b)) << 16) / (a))) 334 #define DODGE(a, b) (((a) == 65535) ? (a) : FFMIN(65535, (((b) << 16) / (65535 - (a))))) 347 DEFINE_BLEND16(overlay, (A < 32768) ? MULTIPLY(2, A, B) : SCREEN(2, A, B), 16)
348 DEFINE_BLEND16(hardlight, (B < 32768) ? MULTIPLY(2, B, A) : SCREEN(2, B, A), 16)
350 DEFINE_BLEND16(heat, (A == 0) ? 0 : 65535 - FFMIN(((65535 - B) * (65535 - B)) / A, 65535), 16)
351 DEFINE_BLEND16(freeze, (B == 0) ? 0 : 65535 - FFMIN(((65535 - A) * (65535 - A)) / B, 65535), 16)
357 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)
359 DEFINE_BLEND16(pinlight, (B < 32768) ? FFMIN(A, 2 * B) : FFMAX(A, 2 * (B - 32768)), 16)
361 DEFINE_BLEND16(reflect, (B == 65535) ? B : FFMIN(65535, (A * A / (65535 - B))), 16)
362 DEFINE_BLEND16(glow, (A == 65535) ? A : FFMIN(65535, (B * B / (65535 - A))), 16)
374 #define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 1023)) 375 #define SCREEN(x, a, b) (1023 - (x) * ((1023 - (a)) * (1023 - (b)) / 1023)) 376 #define BURN(a, b) (((a) == 0) ? (a) : FFMAX(0, 1023 - ((1023 - (b)) << 10) / (a))) 377 #define DODGE(a, b) (((a) == 1023) ? (a) : FFMIN(1023, (((b) << 10) / (1023 - (a))))) 390 DEFINE_BLEND16(overlay, (A < 512) ? MULTIPLY(2, A, B) : SCREEN(2, A, B), 10)
391 DEFINE_BLEND16(hardlight, (B < 512) ? MULTIPLY(2, B, A) : SCREEN(2, B, A), 10)
393 DEFINE_BLEND16(heat, (A == 0) ? 0 : 1023 - FFMIN(((1023 - B) * (1023 - B)) / A, 1023), 10)
394 DEFINE_BLEND16(freeze, (B == 0) ? 0 : 1023 - FFMIN(((1023 - A) * (1023 - A)) / B, 1023), 10)
400 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)
402 DEFINE_BLEND16(pinlight, (B < 512) ? FFMIN(A, 2 * B) : FFMAX(A, 2 * (B - 512)), 10)
404 DEFINE_BLEND16(reflect, (B == 1023) ? B : FFMIN(1023, (A * A / (1023 - B))), 10)
405 DEFINE_BLEND16(glow, (A == 1023) ? A : FFMIN(1023, (B * B / (1023 - A))), 10)
417 #define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 4095)) 418 #define SCREEN(x, a, b) (4095 - (x) * ((4095 - (a)) * (4095 - (b)) / 4095)) 419 #define BURN(a, b) (((a) == 0) ? (a) : FFMAX(0, 4095 - ((4095 - (b)) << 12) / (a))) 420 #define DODGE(a, b) (((a) == 4095) ? (a) : FFMIN(4095, (((b) << 12) / (4095 - (a))))) 433 DEFINE_BLEND16(overlay, (A < 2048) ? MULTIPLY(2, A, B) : SCREEN(2, A, B), 12)
434 DEFINE_BLEND16(hardlight, (B < 2048) ? MULTIPLY(2, B, A) : SCREEN(2, B, A), 12)
436 DEFINE_BLEND16(heat, (A == 0) ? 0 : 4095 - FFMIN(((4095 - B) * (4095 - B)) / A, 4095), 12)
437 DEFINE_BLEND16(freeze, (B == 0) ? 0 : 4095 - FFMIN(((4095 - A) * (4095 - A)) / B, 4095), 12)
443 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)
445 DEFINE_BLEND16(pinlight, (B < 2048) ? FFMIN(A, 2 * B) : FFMAX(A, 2 * (B - 2048)), 12)
447 DEFINE_BLEND16(reflect, (B == 4095) ? B : FFMIN(4095, (A * A / (4095 - B))), 12)
448 DEFINE_BLEND16(glow, (A == 4095) ? A : FFMIN(4095, (B * B / (4095 - A))), 12)
460 #define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 511)) 461 #define SCREEN(x, a, b) (511 - (x) * ((511 - (a)) * (511 - (b)) / 511)) 462 #define BURN(a, b) (((a) == 0) ? (a) : FFMAX(0, 511 - ((511 - (b)) << 9) / (a))) 463 #define DODGE(a, b) (((a) == 511) ? (a) : FFMIN(511, (((b) << 9) / (511 - (a))))) 476 DEFINE_BLEND16(overlay, (A < 256) ? MULTIPLY(2, A, B) : SCREEN(2, A, B), 9)
477 DEFINE_BLEND16(hardlight, (B < 256) ? MULTIPLY(2, B, A) : SCREEN(2, B, A), 9)
479 DEFINE_BLEND16(heat, (A == 0) ? 0 : 511 - FFMIN(((511 - B) * (511 - B)) / A, 511), 9)
480 DEFINE_BLEND16(freeze, (B == 0) ? 0 : 511 - FFMIN(((511 - A) * (511 - A)) / B, 511), 9)
486 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)
488 DEFINE_BLEND16(pinlight, (B < 256) ? FFMIN(A, 2 * B) : FFMAX(A, 2 * (B - 256)), 9)
490 DEFINE_BLEND16(reflect, (B == 511) ? B : FFMIN(511, (A * A / (511 - B))), 9)
491 DEFINE_BLEND16(glow, (A == 511) ? A : FFMIN(511, (B * B / (511 - A))), 9)
503 #define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 1.0)) 504 #define SCREEN(x, a, b) (1.0 - (x) * ((1.0 - (a)) * (1.0 - (b)) / 1.0)) 505 #define BURN(a, b) (((a) <= 0.0) ? (a) : FFMAX(0.0, 1.0 - (1.0 - (b)) / (a))) 506 #define DODGE(a, b) (((a) >= 1.0) ? (a) : FFMIN(1.0, ((b) / (1.0 - (a))))) 519 DEFINE_BLEND32(overlay, (A < 0.5) ? MULTIPLY(2, A, B) : SCREEN(2, A, B), 32)
520 DEFINE_BLEND32(hardlight, (B < 0.5) ? MULTIPLY(2, B, A) : SCREEN(2, B, A), 32)
522 DEFINE_BLEND32(heat, (A == 0) ? 0 : 1.0 - FFMIN(((1.0 - B) * (1.0 - B)) / A, 1.0), 32)
523 DEFINE_BLEND32(freeze, (B == 0) ? 0 : 1.0 - FFMIN(((1.0 - A) * (1.0 - A)) / B, 1.0), 32)
529 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)
531 DEFINE_BLEND32(pinlight, (B < 0.5) ? FFMIN(A, 2 * B) : FFMAX(A, 2 * (B - 0.5)), 32)
533 DEFINE_BLEND32(reflect, (B == 1.0) ? B : FFMIN(1.0, (A * A / (1.0 - B))), 32)
534 DEFINE_BLEND32(glow, (A == 1.0) ? A : FFMIN(1.0, (B * B / (1.0 - A))), 32)
539 DEFINE_BLEND32(linearlight,(B < 0.5) ? B + 2 * A - 1.0 : B + 2 * (A - 0.5), 32)
541 #define DEFINE_BLEND_EXPR(type, name, div) \ 542 static void blend_expr_## name(const uint8_t *_top, ptrdiff_t top_linesize, \ 543 const uint8_t *_bottom, ptrdiff_t bottom_linesize, \ 544 uint8_t *_dst, ptrdiff_t dst_linesize, \ 545 ptrdiff_t width, ptrdiff_t height, \ 546 FilterParams *param, double *values, int starty) \ 548 const type *top = (type*)_top; \ 549 const type *bottom = (type*)_bottom; \ 550 type *dst = (type*)_dst; \ 551 AVExpr *e = param->e; \ 553 dst_linesize /= div; \ 554 top_linesize /= div; \ 555 bottom_linesize /= div; \ 557 for (y = 0; y < height; y++) { \ 558 values[VAR_Y] = y + starty; \ 559 for (x = 0; x < width; x++) { \ 561 values[VAR_TOP] = values[VAR_A] = top[x]; \ 562 values[VAR_BOTTOM] = values[VAR_B] = bottom[x]; \ 563 dst[x] = av_expr_eval(e, values, NULL); \ 565 dst += dst_linesize; \ 566 top += top_linesize; \ 567 bottom += bottom_linesize; \ 578 int slice_start = (td->
h * jobnr ) / nb_jobs;
579 int slice_end = (td->
h * (jobnr+1)) / nb_jobs;
580 int height = slice_end - slice_start;
599 td->
w, height, td->
param, &values[0], slice_start);
617 for (plane = 0; plane < s->
nb_planes; plane++) {
618 int hsub = plane == 1 || plane == 2 ? s->
hsub : 0;
619 int vsub = plane == 1 || plane == 2 ? s->
vsub : 0;
623 ThreadData td = { .top = top_buf, .bottom = bottom_buf, .dst = dst_buf,
624 .w = outw, .h = outh, .param = param, .plane = plane,
639 AVFrame *top_buf, *bottom_buf, *dst_buf;
701 #define DEFINE_INIT_BLEND_FUNC(depth, nbits) \ 702 static av_cold void init_blend_func_##depth##_##nbits##bit(FilterParams *param) \ 704 switch (param->mode) { \ 705 case BLEND_ADDITION: param->blend = blend_addition_##depth##bit; break; \ 706 case BLEND_GRAINMERGE: param->blend = blend_grainmerge_##depth##bit; break; \ 707 case BLEND_AND: param->blend = blend_and_##depth##bit; break; \ 708 case BLEND_AVERAGE: param->blend = blend_average_##depth##bit; break; \ 709 case BLEND_BURN: param->blend = blend_burn_##depth##bit; break; \ 710 case BLEND_DARKEN: param->blend = blend_darken_##depth##bit; break; \ 711 case BLEND_DIFFERENCE: param->blend = blend_difference_##depth##bit; break; \ 712 case BLEND_GRAINEXTRACT: param->blend = blend_grainextract_##depth##bit; break; \ 713 case BLEND_DIVIDE: param->blend = blend_divide_##depth##bit; break; \ 714 case BLEND_DODGE: param->blend = blend_dodge_##depth##bit; break; \ 715 case BLEND_EXCLUSION: param->blend = blend_exclusion_##depth##bit; break; \ 716 case BLEND_EXTREMITY: param->blend = blend_extremity_##depth##bit; break; \ 717 case BLEND_FREEZE: param->blend = blend_freeze_##depth##bit; break; \ 718 case BLEND_GLOW: param->blend = blend_glow_##depth##bit; break; \ 719 case BLEND_HARDLIGHT: param->blend = blend_hardlight_##depth##bit; break; \ 720 case BLEND_HARDMIX: param->blend = blend_hardmix_##depth##bit; break; \ 721 case BLEND_HEAT: param->blend = blend_heat_##depth##bit; break; \ 722 case BLEND_LIGHTEN: param->blend = blend_lighten_##depth##bit; break; \ 723 case BLEND_LINEARLIGHT: param->blend = blend_linearlight_##depth##bit; break; \ 724 case BLEND_MULTIPLY: param->blend = blend_multiply_##depth##bit; break; \ 725 case BLEND_MULTIPLY128: param->blend = blend_multiply128_##depth##bit; break; \ 726 case BLEND_NEGATION: param->blend = blend_negation_##depth##bit; break; \ 727 case BLEND_NORMAL: param->blend = blend_normal_##nbits##bit; break; \ 728 case BLEND_OR: param->blend = blend_or_##depth##bit; break; \ 729 case BLEND_OVERLAY: param->blend = blend_overlay_##depth##bit; break; \ 730 case BLEND_PHOENIX: param->blend = blend_phoenix_##depth##bit; break; \ 731 case BLEND_PINLIGHT: param->blend = blend_pinlight_##depth##bit; break; \ 732 case BLEND_REFLECT: param->blend = blend_reflect_##depth##bit; break; \ 733 case BLEND_SCREEN: param->blend = blend_screen_##depth##bit; break; \ 734 case BLEND_SOFTLIGHT: param->blend = blend_softlight_##depth##bit; break; \ 735 case BLEND_SUBTRACT: param->blend = blend_subtract_##depth##bit; break; \ 736 case BLEND_VIVIDLIGHT: param->blend = blend_vividlight_##depth##bit; break; \ 737 case BLEND_XOR: param->blend = blend_xor_##depth##bit; break; \ 751 init_blend_func_8_8bit(param);
754 init_blend_func_9_16bit(param);
757 init_blend_func_10_16bit(param);
760 init_blend_func_12_16bit(param);
763 init_blend_func_16_16bit(param);
766 init_blend_func_32_32bit(param);
770 if (param->opacity == 0 && param->mode !=
BLEND_NORMAL) {
771 param->blend = depth > 8 ? depth > 16 ? blend_copytop_32 : blend_copytop_16 : blend_copytop_8;
773 if (param->opacity == 1)
774 param->blend = depth > 8 ? depth > 16 ? blend_copytop_32 : blend_copytop_16 : blend_copytop_8;
775 else if (param->opacity == 0)
776 param->blend = depth > 8 ? depth > 16 ? blend_copybottom_32 : blend_copybottom_16 : blend_copybottom_8;
808 param->
blend = s->
depth > 8 ? s->
depth > 16 ? blend_expr_32bit : blend_expr_16bit : blend_expr_8bit;
830 if (toplink->
w != bottomlink->
w || toplink->
h != bottomlink->
h) {
832 "(size %dx%d) do not match the corresponding " 833 "second input link %s parameters (size %dx%d)\n",
840 outlink->
w = toplink->
w;
841 outlink->
h = toplink->
h;
870 char *res,
int res_len,
int flags)
881 #if CONFIG_BLEND_FILTER 912 .preinit = blend_framesync_preinit,
920 .priv_class = &blend_class,
927 #if CONFIG_TBLEND_FILTER 950 #define tblend_options blend_options 957 .filter_frame = tblend_filter_frame,
975 .priv_class = &tblend_class,
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
#define AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUVA422P9
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
This structure describes decoded (raw) audio or video data.
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 AV_PIX_FMT_YUVA420P10
void ff_blend_init(FilterParams *param, int depth)
#define AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_YUVA422P10
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
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)
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Main libavfilter public API header.
static av_always_inline float av_int2float(uint32_t i)
Reinterpret a 32-bit integer as a float.
int h
agreed upon image height
#define AV_PIX_FMT_GBRP10
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
#define AV_PIX_FMT_YUV420P12
static const char *const var_names[]
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
#define FF_ARRAY_ELEMS(a)
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.
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
int is_disabled
the enabled state from the last expression evaluation
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
#define DEFINE_INIT_BLEND_FUNC(depth, nbits)
#define AV_PIX_FMT_GRAY10
const char * name
Pad name.
AVFilterContext * parent
Parent filter context.
#define AV_PIX_FMT_GRAY12
AVFilterLink ** inputs
array of pointers to input links
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
int ff_framesync_init_dualinput(FFFrameSync *fs, AVFilterContext *parent)
Initialize a frame sync structure for dualinput.
filter_frame For filters that do not use the activate() callback
#define DEFINE_BLEND8(name, expr)
int ff_framesync_dualinput_get(FFFrameSync *fs, AVFrame **f0, AVFrame **f1)
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
#define AV_PIX_FMT_YUVA420P9
static double av_q2d(AVRational a)
Convert an AVRational to a double.
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
static int query_formats(AVFilterContext *ctx)
#define AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUVA420P16
static int config_output(AVFilterLink *outlink)
A filter pad used for either input or output.
A link between two filters.
AVFilterPad * input_pads
array of input pads
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static av_cold int init(AVFilterContext *ctx)
static av_cold void uninit(AVFilterContext *ctx)
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
AVRational frame_rate
Frame rate of the stream on the link, or 1/0 if unknown or variable; if left to 0/0, will be automatically copied from the first input of the source filter if it exists.
static __device__ float fabs(float a)
#define DEFINE_BLEND16(name, expr, depth)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options...
void * priv
private data for use by the filter
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
static SoftFloat_IEEE754 multiply(SoftFloat_IEEE754 a, SoftFloat_IEEE754 b)
multiply two softfloats and handle the rounding off
#define AV_PIX_FMT_YUVA444P16
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link...
#define AV_PIX_FMT_GBRAP12
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
#define AV_PIX_FMT_YUV444P10
int(* on_event)(struct FFFrameSync *fs)
Callback called when a frame event is ready.
#define AV_PIX_FMT_GBRAP16
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
int w
agreed upon image width
#define AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_GBRP16
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
#define AV_PIX_FMT_GRAY16
#define DEFINE_BLEND_EXPR(type, name, div)
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
#define AV_PIX_FMT_YUVA444P12
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
AVRational time_base
Time base for the output events.
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 FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
AVFilterContext * src
source filter
#define AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUV444P9
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
static const AVFilterPad outputs[]
int format
agreed upon media format
#define AV_PIX_FMT_YUV420P16
char * av_strdup(const char *s)
Duplicate a string.
#define AV_PIX_FMT_GRAYF32
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
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)
Used for passing data between threads.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
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
static const AVOption blend_options[]
FRAMESYNC_DEFINE_CLASS(blend, BlendContext, fs)
#define AV_PIX_FMT_YUV420P10
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Describe the class of an AVClass context structure.
void ff_blend_init_x86(FilterParams *param, int depth)
const char * name
Filter name.
#define AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV420P9
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
#define DEFINE_BLEND32(name, expr, depth)
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
static av_always_inline uint32_t av_float2int(float f)
Reinterpret a float as a 32-bit integer.
AVFilterLink ** outputs
array of pointers to output links
static enum AVPixelFormat pix_fmts[]
#define AV_PIX_FMT_GBRP12
#define flags(name, subs,...)
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
#define AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV444P12
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
#define MULTIPLY(x, a, b)
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
#define AV_PIX_FMT_GBRPF32
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
int vsub
chroma subsampling values
#define AV_PIX_FMT_GBRAPF32
planar GBRA 4:4:4:4 32bpp
#define bit(string, value)
#define AV_PIX_FMT_YUVA444P9
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
avfilter_execute_func * execute
static int config_params(AVFilterContext *ctx)
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
AVFilterContext * dst
dest filter
#define AVFILTER_DEFINE_CLASS(fname)
static AVFrame * blend_frame(AVFilterContext *ctx, AVFrame *top_buf, const AVFrame *bottom_buf)
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
static int blend_frame_for_dualinput(FFFrameSync *fs)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
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)
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
int depth
Number of bits in the component.
AVPixelFormat
Pixel format.
mode
Use these values in ebur128_init (or'ed).
const AVFilter * filter
the AVFilter of which this is an instance
#define AV_PIX_FMT_YUV422P16
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
#define AV_NOPTS_VALUE
Undefined timestamp value.
#define AV_PIX_FMT_YUVA422P12
simple arithmetic expression evaluator
#define AV_CEIL_RSHIFT(a, b)