/* * Copyright (c) 2020 Paul B Mahol * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "libavutil/eval.h" #include "libavutil/opt.h" #include "libavutil/pixdesc.h" #include "libavutil/pixfmt.h" #include "avfilter.h" #include "internal.h" #include "filters.h" #include "video.h" enum XFadeTransitions { CUSTOM = -1, FADE, WIPELEFT, WIPERIGHT, WIPEUP, WIPEDOWN, SLIDELEFT, SLIDERIGHT, SLIDEUP, SLIDEDOWN, CIRCLECROP, RECTCROP, DISTANCE, FADEBLACK, FADEWHITE, RADIAL, SMOOTHLEFT, SMOOTHRIGHT, SMOOTHUP, SMOOTHDOWN, CIRCLEOPEN, CIRCLECLOSE, VERTOPEN, VERTCLOSE, HORZOPEN, HORZCLOSE, DISSOLVE, PIXELIZE, DIAGTL, DIAGTR, DIAGBL, DIAGBR, HLSLICE, HRSLICE, VUSLICE, VDSLICE, HBLUR, FADEGRAYS, WIPETL, WIPETR, WIPEBL, WIPEBR, SQUEEZEH, SQUEEZEV, ZOOMIN, FADEFAST, FADESLOW, HLWIND, HRWIND, VUWIND, VDWIND, COVERLEFT, COVERRIGHT, COVERUP, COVERDOWN, REVEALLEFT, REVEALRIGHT, REVEALUP, REVEALDOWN, NB_TRANSITIONS, }; typedef struct XFadeContext { const AVClass *class; int transition; int64_t duration; int64_t offset; char *custom_str; int nb_planes; int depth; int is_rgb; // PTS when the fade should start (in first inputs timebase) int64_t start_pts; // PTS offset between first and second input int64_t inputs_offset_pts; // Duration of the transition int64_t duration_pts; // Current PTS of the first input int64_t pts; // If frames are currently just passed through unmodified, // like before and after the actual transition. int passthrough; int status[2]; AVFrame *xf[2]; int max_value; uint16_t black[4]; uint16_t white[4]; void (*transitionf)(AVFilterContext *ctx, const AVFrame *a, const AVFrame *b, AVFrame *out, float progress, int slice_start, int slice_end, int jobnr); AVExpr *e; } XFadeContext; static const char *const var_names[] = { "X", "Y", "W", "H", "A", "B", "PLANE", "P", NULL }; enum { VAR_X, VAR_Y, VAR_W, VAR_H, VAR_A, VAR_B, VAR_PLANE, VAR_PROGRESS, VAR_VARS_NB }; typedef struct ThreadData { const AVFrame *xf[2]; AVFrame *out; float progress; } ThreadData; static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, AV_PIX_FMT_GRAY8, AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_GBRP9, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GRAY10, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GRAY12, AV_PIX_FMT_YUV444P14, AV_PIX_FMT_GBRP14, AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUVA444P16, AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16, AV_PIX_FMT_GRAY16, AV_PIX_FMT_NONE }; static av_cold void uninit(AVFilterContext *ctx) { XFadeContext *s = ctx->priv; av_expr_free(s->e); } #define OFFSET(x) offsetof(XFadeContext, x) #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) static const AVOption xfade_options[] = { { "transition", "set cross fade transition", OFFSET(transition), AV_OPT_TYPE_INT, {.i64=FADE}, -1, NB_TRANSITIONS-1, FLAGS, .unit = "transition" }, { "custom", "custom transition", 0, AV_OPT_TYPE_CONST, {.i64=CUSTOM}, 0, 0, FLAGS, .unit = "transition" }, { "fade", "fade transition", 0, AV_OPT_TYPE_CONST, {.i64=FADE}, 0, 0, FLAGS, .unit = "transition" }, { "wipeleft", "wipe left transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPELEFT}, 0, 0, FLAGS, .unit = "transition" }, { "wiperight", "wipe right transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPERIGHT}, 0, 0, FLAGS, .unit = "transition" }, { "wipeup", "wipe up transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPEUP}, 0, 0, FLAGS, .unit = "transition" }, { "wipedown", "wipe down transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPEDOWN}, 0, 0, FLAGS, .unit = "transition" }, { "slideleft", "slide left transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDELEFT}, 0, 0, FLAGS, .unit = "transition" }, { "slideright", "slide right transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDERIGHT}, 0, 0, FLAGS, .unit = "transition" }, { "slideup", "slide up transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDEUP}, 0, 0, FLAGS, .unit = "transition" }, { "slidedown", "slide down transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDEDOWN}, 0, 0, FLAGS, .unit = "transition" }, { "circlecrop", "circle crop transition", 0, AV_OPT_TYPE_CONST, {.i64=CIRCLECROP}, 0, 0, FLAGS, .unit = "transition" }, { "rectcrop", "rect crop transition", 0, AV_OPT_TYPE_CONST, {.i64=RECTCROP}, 0, 0, FLAGS, .unit = "transition" }, { "distance", "distance transition", 0, AV_OPT_TYPE_CONST, {.i64=DISTANCE}, 0, 0, FLAGS, .unit = "transition" }, { "fadeblack", "fadeblack transition", 0, AV_OPT_TYPE_CONST, {.i64=FADEBLACK}, 0, 0, FLAGS, .unit = "transition" }, { "fadewhite", "fadewhite transition", 0, AV_OPT_TYPE_CONST, {.i64=FADEWHITE}, 0, 0, FLAGS, .unit = "transition" }, { "radial", "radial transition", 0, AV_OPT_TYPE_CONST, {.i64=RADIAL}, 0, 0, FLAGS, .unit = "transition" }, { "smoothleft", "smoothleft transition", 0, AV_OPT_TYPE_CONST, {.i64=SMOOTHLEFT}, 0, 0, FLAGS, .unit = "transition" }, { "smoothright","smoothright transition", 0, AV_OPT_TYPE_CONST, {.i64=SMOOTHRIGHT},0, 0, FLAGS, .unit = "transition" }, { "smoothup", "smoothup transition", 0, AV_OPT_TYPE_CONST, {.i64=SMOOTHUP}, 0, 0, FLAGS, .unit = "transition" }, { "smoothdown", "smoothdown transition", 0, AV_OPT_TYPE_CONST, {.i64=SMOOTHDOWN}, 0, 0, FLAGS, .unit = "transition" }, { "circleopen", "circleopen transition", 0, AV_OPT_TYPE_CONST, {.i64=CIRCLEOPEN}, 0, 0, FLAGS, .unit = "transition" }, { "circleclose","circleclose transition", 0, AV_OPT_TYPE_CONST, {.i64=CIRCLECLOSE},0, 0, FLAGS, .unit = "transition" }, { "vertopen", "vert open transition", 0, AV_OPT_TYPE_CONST, {.i64=VERTOPEN}, 0, 0, FLAGS, .unit = "transition" }, { "vertclose", "vert close transition", 0, AV_OPT_TYPE_CONST, {.i64=VERTCLOSE}, 0, 0, FLAGS, .unit = "transition" }, { "horzopen", "horz open transition", 0, AV_OPT_TYPE_CONST, {.i64=HORZOPEN}, 0, 0, FLAGS, .unit = "transition" }, { "horzclose", "horz close transition", 0, AV_OPT_TYPE_CONST, {.i64=HORZCLOSE}, 0, 0, FLAGS, .unit = "transition" }, { "dissolve", "dissolve transition", 0, AV_OPT_TYPE_CONST, {.i64=DISSOLVE}, 0, 0, FLAGS, .unit = "transition" }, { "pixelize", "pixelize transition", 0, AV_OPT_TYPE_CONST, {.i64=PIXELIZE}, 0, 0, FLAGS, .unit = "transition" }, { "diagtl", "diag tl transition", 0, AV_OPT_TYPE_CONST, {.i64=DIAGTL}, 0, 0, FLAGS, .unit = "transition" }, { "diagtr", "diag tr transition", 0, AV_OPT_TYPE_CONST, {.i64=DIAGTR}, 0, 0, FLAGS, .unit = "transition" }, { "diagbl", "diag bl transition", 0, AV_OPT_TYPE_CONST, {.i64=DIAGBL}, 0, 0, FLAGS, .unit = "transition" }, { "diagbr", "diag br transition", 0, AV_OPT_TYPE_CONST, {.i64=DIAGBR}, 0, 0, FLAGS, .unit = "transition" }, { "hlslice", "hl slice transition", 0, AV_OPT_TYPE_CONST, {.i64=HLSLICE}, 0, 0, FLAGS, .unit = "transition" }, { "hrslice", "hr slice transition", 0, AV_OPT_TYPE_CONST, {.i64=HRSLICE}, 0, 0, FLAGS, .unit = "transition" }, { "vuslice", "vu slice transition", 0, AV_OPT_TYPE_CONST, {.i64=VUSLICE}, 0, 0, FLAGS, .unit = "transition" }, { "vdslice", "vd slice transition", 0, AV_OPT_TYPE_CONST, {.i64=VDSLICE}, 0, 0, FLAGS, .unit = "transition" }, { "hblur", "hblur transition", 0, AV_OPT_TYPE_CONST, {.i64=HBLUR}, 0, 0, FLAGS, .unit = "transition" }, { "fadegrays", "fadegrays transition", 0, AV_OPT_TYPE_CONST, {.i64=FADEGRAYS}, 0, 0, FLAGS, .unit = "transition" }, { "wipetl", "wipe tl transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPETL}, 0, 0, FLAGS, .unit = "transition" }, { "wipetr", "wipe tr transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPETR}, 0, 0, FLAGS, .unit = "transition" }, { "wipebl", "wipe bl transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPEBL}, 0, 0, FLAGS, .unit = "transition" }, { "wipebr", "wipe br transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPEBR}, 0, 0, FLAGS, .unit = "transition" }, { "squeezeh", "squeeze h transition", 0, AV_OPT_TYPE_CONST, {.i64=SQUEEZEH}, 0, 0, FLAGS, .unit = "transition" }, { "squeezev", "squeeze v transition", 0, AV_OPT_TYPE_CONST, {.i64=SQUEEZEV}, 0, 0, FLAGS, .unit = "transition" }, { "zoomin", "zoom in transition", 0, AV_OPT_TYPE_CONST, {.i64=ZOOMIN}, 0, 0, FLAGS, .unit = "transition" }, { "fadefast", "fast fade transition", 0, AV_OPT_TYPE_CONST, {.i64=FADEFAST}, 0, 0, FLAGS, .unit = "transition" }, { "fadeslow", "slow fade transition", 0, AV_OPT_TYPE_CONST, {.i64=FADESLOW}, 0, 0, FLAGS, .unit = "transition" }, { "hlwind", "hl wind transition", 0, AV_OPT_TYPE_CONST, {.i64=HLWIND}, 0, 0, FLAGS, .unit = "transition" }, { "hrwind", "hr wind transition", 0, AV_OPT_TYPE_CONST, {.i64=HRWIND}, 0, 0, FLAGS, .unit = "transition" }, { "vuwind", "vu wind transition", 0, AV_OPT_TYPE_CONST, {.i64=VUWIND}, 0, 0, FLAGS, .unit = "transition" }, { "vdwind", "vd wind transition", 0, AV_OPT_TYPE_CONST, {.i64=VDWIND}, 0, 0, FLAGS, .unit = "transition" }, { "coverleft", "cover left transition", 0, AV_OPT_TYPE_CONST, {.i64=COVERLEFT}, 0, 0, FLAGS, .unit = "transition" }, { "coverright", "cover right transition", 0, AV_OPT_TYPE_CONST, {.i64=COVERRIGHT}, 0, 0, FLAGS, .unit = "transition" }, { "coverup", "cover up transition", 0, AV_OPT_TYPE_CONST, {.i64=COVERUP}, 0, 0, FLAGS, .unit = "transition" }, { "coverdown", "cover down transition", 0, AV_OPT_TYPE_CONST, {.i64=COVERDOWN}, 0, 0, FLAGS, .unit = "transition" }, { "revealleft", "reveal left transition", 0, AV_OPT_TYPE_CONST, {.i64=REVEALLEFT}, 0, 0, FLAGS, .unit = "transition" }, { "revealright","reveal right transition",0, AV_OPT_TYPE_CONST, {.i64=REVEALRIGHT},0, 0, FLAGS, .unit = "transition" }, { "revealup", "reveal up transition", 0, AV_OPT_TYPE_CONST, {.i64=REVEALUP}, 0, 0, FLAGS, .unit = "transition" }, { "revealdown", "reveal down transition", 0, AV_OPT_TYPE_CONST, {.i64=REVEALDOWN}, 0, 0, FLAGS, .unit = "transition" }, { "duration", "set cross fade duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64=1000000}, 0, 60000000, FLAGS }, { "offset", "set cross fade start relative to first input stream", OFFSET(offset), AV_OPT_TYPE_DURATION, {.i64=0}, INT64_MIN, INT64_MAX, FLAGS }, { "expr", "set expression for custom transition", OFFSET(custom_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, { NULL } }; AVFILTER_DEFINE_CLASS(xfade); #define CUSTOM_TRANSITION(name, type, div) \ static void custom##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ \ double values[VAR_VARS_NB]; \ values[VAR_W] = width; \ values[VAR_H] = out->height; \ values[VAR_PROGRESS] = progress; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ values[VAR_PLANE] = p; \ \ for (int y = 0; y < height; y++) { \ values[VAR_Y] = slice_start + y; \ for (int x = 0; x < width; x++) { \ values[VAR_X] = x; \ values[VAR_A] = xf0[x]; \ values[VAR_B] = xf1[x]; \ dst[x] = av_expr_eval(s->e, values, s); \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } CUSTOM_TRANSITION(8, uint8_t, 1) CUSTOM_TRANSITION(16, uint16_t, 2) static inline float mix(float a, float b, float mix) { return a * mix + b * (1.f - mix); } static inline float fract(float a) { return a - floorf(a); } static inline float smoothstep(float edge0, float edge1, float x) { float t; t = av_clipf((x - edge0) / (edge1 - edge0), 0.f, 1.f); return t * t * (3.f - 2.f * t); } #define FADE_TRANSITION(name, type, div) \ static void fade##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = mix(xf0[x], xf1[x], progress); \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } FADE_TRANSITION(8, uint8_t, 1) FADE_TRANSITION(16, uint16_t, 2) #define WIPELEFT_TRANSITION(name, type, div) \ static void wipeleft##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const int z = width * progress; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = x > z ? xf1[x] : xf0[x]; \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } WIPELEFT_TRANSITION(8, uint8_t, 1) WIPELEFT_TRANSITION(16, uint16_t, 2) #define WIPERIGHT_TRANSITION(name, type, div) \ static void wiperight##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const int z = width * (1.f - progress); \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = x > z ? xf0[x] : xf1[x]; \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } WIPERIGHT_TRANSITION(8, uint8_t, 1) WIPERIGHT_TRANSITION(16, uint16_t, 2) #define WIPEUP_TRANSITION(name, type, div) \ static void wipeup##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const int z = out->height * progress; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = slice_start + y > z ? xf1[x] : xf0[x]; \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } WIPEUP_TRANSITION(8, uint8_t, 1) WIPEUP_TRANSITION(16, uint16_t, 2) #define WIPEDOWN_TRANSITION(name, type, div) \ static void wipedown##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const int z = out->height * (1.f - progress); \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = slice_start + y > z ? xf0[x] : xf1[x]; \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } WIPEDOWN_TRANSITION(8, uint8_t, 1) WIPEDOWN_TRANSITION(16, uint16_t, 2) #define SLIDELEFT_TRANSITION(name, type, div) \ static void slideleft##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const int z = -progress * width; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ const int zx = z + x; \ const int zz = zx % width + width * (zx < 0); \ dst[x] = (zx >= 0) && (zx < width) ? xf1[zz] : xf0[zz]; \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } SLIDELEFT_TRANSITION(8, uint8_t, 1) SLIDELEFT_TRANSITION(16, uint16_t, 2) #define SLIDERIGHT_TRANSITION(name, type, div) \ static void slideright##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const int z = progress * width; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ const int zx = z + x; \ const int zz = zx % width + width * (zx < 0); \ dst[x] = (zx >= 0) && (zx < width) ? xf1[zz] : xf0[zz]; \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } SLIDERIGHT_TRANSITION(8, uint8_t, 1) SLIDERIGHT_TRANSITION(16, uint16_t, 2) #define SLIDEUP_TRANSITION(name, type, div) \ static void slideup##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = out->height; \ const int width = out->width; \ const int z = -progress * height; \ \ for (int p = 0; p < s->nb_planes; p++) { \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = slice_start; y < slice_end; y++) { \ const int zy = z + y; \ const int zz = zy % height + height * (zy < 0); \ const type *xf0 = (const type *)(a->data[p] + zz * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + zz * b->linesize[p]); \ \ for (int x = 0; x < width; x++) { \ dst[x] = (zy >= 0) && (zy < height) ? xf1[x] : xf0[x]; \ } \ \ dst += out->linesize[p] / div; \ } \ } \ } SLIDEUP_TRANSITION(8, uint8_t, 1) SLIDEUP_TRANSITION(16, uint16_t, 2) #define SLIDEDOWN_TRANSITION(name, type, div) \ static void slidedown##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = out->height; \ const int width = out->width; \ const int z = progress * height; \ \ for (int p = 0; p < s->nb_planes; p++) { \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = slice_start; y < slice_end; y++) { \ const int zy = z + y; \ const int zz = zy % height + height * (zy < 0); \ const type *xf0 = (const type *)(a->data[p] + zz * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + zz * b->linesize[p]); \ \ for (int x = 0; x < width; x++) { \ dst[x] = (zy >= 0) && (zy < height) ? xf1[x] : xf0[x]; \ } \ \ dst += out->linesize[p] / div; \ } \ } \ } SLIDEDOWN_TRANSITION(8, uint8_t, 1) SLIDEDOWN_TRANSITION(16, uint16_t, 2) #define CIRCLECROP_TRANSITION(name, type, div) \ static void circlecrop##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const int height = out->height; \ float z = powf(2.f * fabsf(progress - 0.5f), 3.f) * hypotf(width/2, height/2); \ \ for (int p = 0; p < s->nb_planes; p++) { \ const int bg = s->black[p]; \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = slice_start; y < slice_end; y++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ \ for (int x = 0; x < width; x++) { \ float dist = hypotf(x - width / 2, y - height / 2); \ int val = progress < 0.5f ? xf1[x] : xf0[x]; \ dst[x] = (z < dist) ? bg : val; \ } \ \ dst += out->linesize[p] / div; \ } \ } \ } CIRCLECROP_TRANSITION(8, uint8_t, 1) CIRCLECROP_TRANSITION(16, uint16_t, 2) #define RECTCROP_TRANSITION(name, type, div) \ static void rectcrop##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const int height = out->height; \ int zh = fabsf(progress - 0.5f) * height; \ int zw = fabsf(progress - 0.5f) * width; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const int bg = s->black[p]; \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = slice_start; y < slice_end; y++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ \ for (int x = 0; x < width; x++) { \ int dist = FFABS(x - width / 2) < zw && \ FFABS(y - height / 2) < zh; \ int val = progress < 0.5f ? xf1[x] : xf0[x]; \ dst[x] = !dist ? bg : val; \ } \ \ dst += out->linesize[p] / div; \ } \ } \ } RECTCROP_TRANSITION(8, uint8_t, 1) RECTCROP_TRANSITION(16, uint16_t, 2) #define DISTANCE_TRANSITION(name, type, div) \ static void distance##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const float max = s->max_value; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ float dist = 0.f; \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ \ dist += (xf0[x] / max - xf1[x] / max) * \ (xf0[x] / max - xf1[x] / max); \ } \ \ dist = sqrtf(dist) <= progress; \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ dst[x] = mix(mix(xf0[x], xf1[x], dist), xf1[x], progress); \ } \ } \ } \ } DISTANCE_TRANSITION(8, uint8_t, 1) DISTANCE_TRANSITION(16, uint16_t, 2) #define FADEBLACK_TRANSITION(name, type, div) \ static void fadeblack##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const float phase = 0.2f; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ const int bg = s->black[p]; \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = mix(mix(xf0[x], bg, smoothstep(1.f-phase, 1.f, progress)), \ mix(bg, xf1[x], smoothstep(phase, 1.f, progress)), \ progress); \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } FADEBLACK_TRANSITION(8, uint8_t, 1) FADEBLACK_TRANSITION(16, uint16_t, 2) #define FADEWHITE_TRANSITION(name, type, div) \ static void fadewhite##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const float phase = 0.2f; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ const int bg = s->white[p]; \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = mix(mix(xf0[x], bg, smoothstep(1.f-phase, 1.f, progress)), \ mix(bg, xf1[x], smoothstep(phase, 1.f, progress)), \ progress); \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } FADEWHITE_TRANSITION(8, uint8_t, 1) FADEWHITE_TRANSITION(16, uint16_t, 2) #define RADIAL_TRANSITION(name, type, div) \ static void radial##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const int height = out->height; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = atan2f(x - width / 2, y - height / 2) - \ (progress - 0.5f) * (M_PI * 2.5f); \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } RADIAL_TRANSITION(8, uint8_t, 1) RADIAL_TRANSITION(16, uint16_t, 2) #define SMOOTHLEFT_TRANSITION(name, type, div) \ static void smoothleft##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const float w = width; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = 1.f + x / w - progress * 2.f; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } SMOOTHLEFT_TRANSITION(8, uint8_t, 1) SMOOTHLEFT_TRANSITION(16, uint16_t, 2) #define SMOOTHRIGHT_TRANSITION(name, type, div) \ static void smoothright##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const float w = width; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = 1.f + (w - 1 - x) / w - progress * 2.f; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } SMOOTHRIGHT_TRANSITION(8, uint8_t, 1) SMOOTHRIGHT_TRANSITION(16, uint16_t, 2) #define SMOOTHUP_TRANSITION(name, type, div) \ static void smoothup##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const float h = out->height; \ \ for (int y = slice_start; y < slice_end; y++) { \ const float smooth = 1.f + y / h - progress * 2.f; \ for (int x = 0; x < width; x++) { \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } SMOOTHUP_TRANSITION(8, uint8_t, 1) SMOOTHUP_TRANSITION(16, uint16_t, 2) #define SMOOTHDOWN_TRANSITION(name, type, div) \ static void smoothdown##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const float h = out->height; \ \ for (int y = slice_start; y < slice_end; y++) { \ const float smooth = 1.f + (h - 1 - y) / h - progress * 2.f; \ for (int x = 0; x < width; x++) { \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } SMOOTHDOWN_TRANSITION(8, uint8_t, 1) SMOOTHDOWN_TRANSITION(16, uint16_t, 2) #define CIRCLEOPEN_TRANSITION(name, type, div) \ static void circleopen##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const int height = out->height; \ const float z = hypotf(width / 2, height / 2); \ const float p = (progress - 0.5f) * 3.f; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = hypotf(x - width / 2, y - height / 2) / z + p; \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf0[x], xf1[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } CIRCLEOPEN_TRANSITION(8, uint8_t, 1) CIRCLEOPEN_TRANSITION(16, uint16_t, 2) #define CIRCLECLOSE_TRANSITION(name, type, div) \ static void circleclose##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const int height = out->height; \ const float z = hypotf(width / 2, height / 2); \ const float p = (1.f - progress - 0.5f) * 3.f; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = hypotf(x - width / 2, y - height / 2) / z + p; \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } CIRCLECLOSE_TRANSITION(8, uint8_t, 1) CIRCLECLOSE_TRANSITION(16, uint16_t, 2) #define VERTOPEN_TRANSITION(name, type, div) \ static void vertopen##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const float w2 = out->width / 2; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = 2.f - fabsf((x - w2) / w2) - progress * 2.f; \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } VERTOPEN_TRANSITION(8, uint8_t, 1) VERTOPEN_TRANSITION(16, uint16_t, 2) #define VERTCLOSE_TRANSITION(name, type, div) \ static void vertclose##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ const float w2 = out->width / 2; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = 1.f + fabsf((x - w2) / w2) - progress * 2.f; \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } VERTCLOSE_TRANSITION(8, uint8_t, 1) VERTCLOSE_TRANSITION(16, uint16_t, 2) #define HORZOPEN_TRANSITION(name, type, div) \ static void horzopen##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ const float h2 = out->height / 2; \ \ for (int y = slice_start; y < slice_end; y++) { \ const float smooth = 2.f - fabsf((y - h2) / h2) - progress * 2.f; \ for (int x = 0; x < width; x++) { \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } HORZOPEN_TRANSITION(8, uint8_t, 1) HORZOPEN_TRANSITION(16, uint16_t, 2) #define HORZCLOSE_TRANSITION(name, type, div) \ static void horzclose##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ const float h2 = out->height / 2; \ \ for (int y = slice_start; y < slice_end; y++) { \ const float smooth = 1.f + fabsf((y - h2) / h2) - progress * 2.f; \ for (int x = 0; x < width; x++) { \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } HORZCLOSE_TRANSITION(8, uint8_t, 1) HORZCLOSE_TRANSITION(16, uint16_t, 2) static float frand(int x, int y) { const float r = sinf(x * 12.9898f + y * 78.233f) * 43758.545f; return r - floorf(r); } #define DISSOLVE_TRANSITION(name, type, div) \ static void dissolve##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = frand(x, y) * 2.f + progress * 2.f - 1.5f; \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = smooth >= 0.5f ? xf0[x] : xf1[x]; \ } \ } \ } \ } DISSOLVE_TRANSITION(8, uint8_t, 1) DISSOLVE_TRANSITION(16, uint16_t, 2) #define PIXELIZE_TRANSITION(name, type, div) \ static void pixelize##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int w = out->width; \ const int h = out->height; \ const float d = fminf(progress, 1.f - progress); \ const float dist = ceilf(d * 50.f) / 50.f; \ const float sqx = 2.f * dist * FFMIN(w, h) / 20.f; \ const float sqy = 2.f * dist * FFMIN(w, h) / 20.f; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < w; x++) { \ int sx = dist > 0.f ? FFMIN((floorf(x / sqx) + .5f) * sqx, w - 1) : x; \ int sy = dist > 0.f ? FFMIN((floorf(y / sqy) + .5f) * sqy, h - 1) : y; \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + sy * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + sy * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf0[sx], xf1[sx], progress); \ } \ } \ } \ } PIXELIZE_TRANSITION(8, uint8_t, 1) PIXELIZE_TRANSITION(16, uint16_t, 2) #define DIAGTL_TRANSITION(name, type, div) \ static void diagtl##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ const float w = width; \ const float h = out->height; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = 1.f + x / w * y / h - progress * 2.f; \ \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } DIAGTL_TRANSITION(8, uint8_t, 1) DIAGTL_TRANSITION(16, uint16_t, 2) #define DIAGTR_TRANSITION(name, type, div) \ static void diagtr##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ const float w = width; \ const float h = out->height; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = 1.f + (w - 1 - x) / w * y / h - progress * 2.f; \ \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } DIAGTR_TRANSITION(8, uint8_t, 1) DIAGTR_TRANSITION(16, uint16_t, 2) #define DIAGBL_TRANSITION(name, type, div) \ static void diagbl##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ const float w = width; \ const float h = out->height; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = 1.f + x / w * (h - 1 - y) / h - progress * 2.f; \ \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } DIAGBL_TRANSITION(8, uint8_t, 1) DIAGBL_TRANSITION(16, uint16_t, 2) #define DIAGBR_TRANSITION(name, type, div) \ static void diagbr##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ const float w = width; \ const float h = out->height; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = 1.f + (w - 1 - x) / w * (h - 1 - y) / h - \ progress * 2.f; \ \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \ } \ } \ } \ } DIAGBR_TRANSITION(8, uint8_t, 1) DIAGBR_TRANSITION(16, uint16_t, 2) #define HLSLICE_TRANSITION(name, type, div) \ static void hlslice##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ const float w = width; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float smooth = smoothstep(-0.5f, 0.f, x / w - progress * 1.5f); \ const float ss = smooth <= fract(10.f * x / w) ? 0.f : 1.f; \ \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], ss); \ } \ } \ } \ } HLSLICE_TRANSITION(8, uint8_t, 1) HLSLICE_TRANSITION(16, uint16_t, 2) #define HRSLICE_TRANSITION(name, type, div) \ static void hrslice##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ const float w = width; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ const float xx = (w - 1 - x) / w; \ const float smooth = smoothstep(-0.5f, 0.f, xx - progress * 1.5f); \ const float ss = smooth <= fract(10.f * xx) ? 0.f : 1.f; \ \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], ss); \ } \ } \ } \ } HRSLICE_TRANSITION(8, uint8_t, 1) HRSLICE_TRANSITION(16, uint16_t, 2) #define VUSLICE_TRANSITION(name, type, div) \ static void vuslice##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ const float h = out->height; \ \ for (int y = slice_start; y < slice_end; y++) { \ const float smooth = smoothstep(-0.5f, 0.f, y / h - progress * 1.5f); \ const float ss = smooth <= fract(10.f * y / h) ? 0.f : 1.f; \ \ for (int x = 0; x < width; x++) { \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], ss); \ } \ } \ } \ } VUSLICE_TRANSITION(8, uint8_t, 1) VUSLICE_TRANSITION(16, uint16_t, 2) #define VDSLICE_TRANSITION(name, type, div) \ static void vdslice##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ const float h = out->height; \ \ for (int y = slice_start; y < slice_end; y++) { \ const float yy = (h - 1 - y) / h; \ const float smooth = smoothstep(-0.5f, 0.f, yy - progress * 1.5f); \ const float ss = smooth <= fract(10.f * yy) ? 0.f : 1.f; \ \ for (int x = 0; x < width; x++) { \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], ss); \ } \ } \ } \ } VDSLICE_TRANSITION(8, uint8_t, 1) VDSLICE_TRANSITION(16, uint16_t, 2) #define HBLUR_TRANSITION(name, type, div) \ static void hblur##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int nb_planes = s->nb_planes; \ const int width = out->width; \ const float prog = progress <= 0.5f ? progress * 2.f : (1.f - progress) * 2.f; \ const int size = 1 + (width / 2) * prog; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int p = 0; p < nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ float sum0 = 0.f; \ float sum1 = 0.f; \ float cnt = size; \ \ for (int x = 0; x < size; x++) { \ sum0 += xf0[x]; \ sum1 += xf1[x]; \ } \ \ for (int x = 0; x < width; x++) { \ dst[x] = mix(sum0 / cnt, sum1 / cnt, progress); \ \ if (x + size < width) { \ sum0 += xf0[x + size] - xf0[x]; \ sum1 += xf1[x + size] - xf1[x]; \ } else { \ sum0 -= xf0[x]; \ sum1 -= xf1[x]; \ cnt--; \ } \ } \ } \ } \ } HBLUR_TRANSITION(8, uint8_t, 1) HBLUR_TRANSITION(16, uint16_t, 2) #define FADEGRAYS_TRANSITION(name, type, div) \ static void fadegrays##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const int is_rgb = s->is_rgb; \ const int mid = (s->max_value + 1) / 2; \ const float phase = 0.2f; \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ int bg[2][4]; \ if (is_rgb) { \ bg[0][0] = bg[1][0] = 0; \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + \ y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + \ y * b->linesize[p]); \ if (p == 3) { \ bg[0][3] = xf0[x]; \ bg[1][3] = xf1[x]; \ } else { \ bg[0][0] += xf0[x]; \ bg[1][0] += xf1[x]; \ } \ } \ bg[0][0] = bg[0][0] / 3; \ bg[1][0] = bg[1][0] / 3; \ bg[0][1] = bg[0][2] = bg[0][0]; \ bg[1][1] = bg[1][2] = bg[1][0]; \ } else { \ const type *yf0 = (const type *)(a->data[0] + \ y * a->linesize[0]); \ const type *yf1 = (const type *)(b->data[0] + \ y * a->linesize[0]); \ bg[0][0] = yf0[x]; \ bg[1][0] = yf1[x]; \ if (s->nb_planes == 4) { \ const type *af0 = (const type *)(a->data[3] + \ y * a->linesize[3]); \ const type *af1 = (const type *)(b->data[3] + \ y * a->linesize[3]); \ bg[0][3] = af0[x]; \ bg[1][3] = af1[x]; \ } \ bg[0][1] = bg[1][1] = mid; \ bg[0][2] = bg[1][2] = mid; \ } \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(mix(xf0[x], bg[0][p], \ smoothstep(1.f-phase, 1.f, progress)), \ mix(bg[1][p], xf1[x], smoothstep(phase, 1.f, progress)), \ progress); \ } \ } \ } \ } FADEGRAYS_TRANSITION(8, uint8_t, 1) FADEGRAYS_TRANSITION(16, uint16_t, 2) #define WIPETL_TRANSITION(name, type, div) \ static void wipetl##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const int zw = out->width * progress; \ const int zh = out->height * progress; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = slice_start + y <= zh && \ x <= zw ? xf0[x] : xf1[x]; \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } WIPETL_TRANSITION(8, uint8_t, 1) WIPETL_TRANSITION(16, uint16_t, 2) #define WIPETR_TRANSITION(name, type, div) \ static void wipetr##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const int zw = width * (1.f - progress); \ const int zh = out->height * progress; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = slice_start + y <= zh && \ x > zw ? xf0[x] : xf1[x]; \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } WIPETR_TRANSITION(8, uint8_t, 1) WIPETR_TRANSITION(16, uint16_t, 2) #define WIPEBL_TRANSITION(name, type, div) \ static void wipebl##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const int zw = width * progress; \ const int zh = out->height * (1.f - progress); \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = slice_start + y > zh && \ x <= zw ? xf0[x] : xf1[x]; \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } WIPEBL_TRANSITION(8, uint8_t, 1) WIPEBL_TRANSITION(16, uint16_t, 2) #define WIPEBR_TRANSITION(name, type, div) \ static void wipebr##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int zh = out->height * (1.f - progress); \ const int width = out->width; \ const int zw = width * (1.f - progress); \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = slice_start + y > zh && \ x > zw ? xf0[x] : xf1[x]; \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } WIPEBR_TRANSITION(8, uint8_t, 1) WIPEBR_TRANSITION(16, uint16_t, 2) #define SQUEEZEH_TRANSITION(name, type, div) \ static void squeezeh##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const float h = out->height; \ const int height = slice_end - slice_start; \ const int width = out->width; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ const float z = .5f + ((slice_start + y) / h - .5f) / progress; \ \ if (z < 0.f || z > 1.f) { \ for (int x = 0; x < width; x++) \ dst[x] = xf1[x]; \ } else { \ const int yy = lrintf(z * (h - 1.f)); \ const type *xf0 = (const type *)(a->data[p] + yy * a->linesize[p]); \ \ for (int x = 0; x < width; x++) \ dst[x] = xf0[x]; \ } \ \ dst += out->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } SQUEEZEH_TRANSITION(8, uint8_t, 1) SQUEEZEH_TRANSITION(16, uint16_t, 2) #define SQUEEZEV_TRANSITION(name, type, div) \ static void squeezev##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const float w = width; \ const int height = slice_end - slice_start; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ const float z = .5f + (x / w - .5f) / progress; \ \ if (z < 0.f || z > 1.f) { \ dst[x] = xf1[x]; \ } else { \ const int xx = lrintf(z * (w - 1.f)); \ \ dst[x] = xf0[xx]; \ } \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } SQUEEZEV_TRANSITION(8, uint8_t, 1) SQUEEZEV_TRANSITION(16, uint16_t, 2) static void zoom(float *u, float *v, float amount) { *u = 0.5f + ((*u - 0.5f) * amount); *v = 0.5f + ((*v - 0.5f) * amount); } #define ZOOMIN_TRANSITION(name, type, div) \ static void zoomin##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ const float w = width; \ const float h = out->height; \ const float zf = smoothstep(0.5f, 1.f, progress); \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = slice_start; y < slice_end; y++) { \ for (int x = 0; x < width; x++) { \ float zv, u, v; \ int iu, iv; \ \ u = x / w; \ v = y / h; \ zoom(&u, &v, zf); \ iu = ceilf(u * (w - 1)); \ iv = ceilf(v * (h - 1)); \ zv = xf0[iu + iv * a->linesize[p] / div]; \ dst[x] = mix(zv, xf1[x], smoothstep(0.f, 0.5f, progress)); \ } \ dst += out->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } ZOOMIN_TRANSITION(8, uint8_t, 1) ZOOMIN_TRANSITION(16, uint16_t, 2) #define FADEFAST_TRANSITION(name, type, div) \ static void fadefast##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const float imax = 1.f / s->max_value; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = mix(xf0[x], xf1[x], powf(progress, 1.f + \ logf(1.f+FFABS(xf0[x]-xf1[x])*imax)\ )); \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } FADEFAST_TRANSITION(8, uint8_t, 1) FADEFAST_TRANSITION(16, uint16_t, 2) #define FADESLOW_TRANSITION(name, type, div) \ static void fadeslow##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const float imax = 1.f / s->max_value; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ dst[x] = mix(xf0[x], xf1[x], powf(progress, 1.f + \ logf(2.f-FFABS(xf0[x]-xf1[x])*imax)\ )); \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } FADESLOW_TRANSITION(8, uint8_t, 1) FADESLOW_TRANSITION(16, uint16_t, 2) #define HWIND_TRANSITION(name, z, type, div, expr) \ static void h##z##wind##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ \ for (int y = slice_start; y < slice_end; y++) { \ const float r = frand(0, y); \ for (int x = 0; x < width; x++) { \ const float fx = expr x / (float)width; \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f,-0.2f, fx * (1.f - 0.2f)\ + 0.2f * r - (1.f - progress)\ * (1.f + 0.2f))); \ } \ } \ } \ } HWIND_TRANSITION(8, l, uint8_t, 1, 1.f - ) HWIND_TRANSITION(16, l, uint16_t, 2, 1.f - ) HWIND_TRANSITION(8, r, uint8_t, 1, ) HWIND_TRANSITION(16, r, uint16_t, 2, ) #define VWIND_TRANSITION(name, z, type, div, expr) \ static void v##z##wind##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int width = out->width; \ \ for (int y = slice_start; y < slice_end; y++) { \ const float fy = expr y / (float)out->height; \ for (int x = 0; x < width; x++) { \ const float r = frand(x, 0); \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ type *dst = (type *)(out->data[p] + y * out->linesize[p]); \ \ dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f,-0.2f, fy * (1.f - 0.2f) \ + 0.2f * r - (1.f - progress)\ * (1.f + 0.2f))); \ } \ } \ } \ } VWIND_TRANSITION(8, u, uint8_t, 1, 1.f - ) VWIND_TRANSITION(16, u, uint16_t, 2, 1.f - ) VWIND_TRANSITION(8, d, uint8_t, 1, ) VWIND_TRANSITION(16, d, uint16_t, 2, ) #define COVERH_TRANSITION(dir, name, type, div, expr) \ static void cover##dir##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const int z = (expr progress) * width; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ const int zx = z + x; \ const int zz = zx % width + width * (zx < 0); \ dst[x] = (zx >= 0) && (zx < width) ? xf1[zz] : xf0[x]; \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } COVERH_TRANSITION(left, 8, uint8_t, 1, -) COVERH_TRANSITION(left, 16, uint16_t, 2, -) COVERH_TRANSITION(right, 8, uint8_t, 1, ) COVERH_TRANSITION(right, 16, uint16_t, 2, ) #define COVERV_TRANSITION(dir, name, type, div, expr) \ static void cover##dir##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = out->height; \ const int width = out->width; \ const int z = (expr progress) * height; \ \ for (int p = 0; p < s->nb_planes; p++) { \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = slice_start; y < slice_end; y++) { \ const int zy = z + y; \ const int zz = zy % height + height * (zy < 0); \ const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + zz * b->linesize[p]); \ \ for (int x = 0; x < width; x++) \ dst[x] = (zy >= 0) && (zy < height) ? xf1[x] : xf0[x]; \ \ dst += out->linesize[p] / div; \ } \ } \ } COVERV_TRANSITION(up, 8, uint8_t, 1, -) COVERV_TRANSITION(up, 16, uint16_t, 2, -) COVERV_TRANSITION(down, 8, uint8_t, 1, ) COVERV_TRANSITION(down, 16, uint16_t, 2, ) #define REVEALH_TRANSITION(dir, name, type, div, expr) \ static void reveal##dir##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = slice_end - slice_start; \ const int width = out->width; \ const int z = (expr progress) * width; \ \ for (int p = 0; p < s->nb_planes; p++) { \ const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = 0; y < height; y++) { \ for (int x = 0; x < width; x++) { \ const int zx = z + x; \ const int zz = zx % width + width * (zx < 0); \ dst[x] = (zx >= 0) && (zx < width) ? xf1[x] : xf0[zz]; \ } \ \ dst += out->linesize[p] / div; \ xf0 += a->linesize[p] / div; \ xf1 += b->linesize[p] / div; \ } \ } \ } REVEALH_TRANSITION(left, 8, uint8_t, 1, -) REVEALH_TRANSITION(left, 16, uint16_t, 2, -) REVEALH_TRANSITION(right, 8, uint8_t, 1, ) REVEALH_TRANSITION(right, 16, uint16_t, 2, ) #define REVEALV_TRANSITION(dir, name, type, div, expr) \ static void reveal##dir##name##_transition(AVFilterContext *ctx, \ const AVFrame *a, const AVFrame *b, AVFrame *out, \ float progress, \ int slice_start, int slice_end, int jobnr) \ { \ XFadeContext *s = ctx->priv; \ const int height = out->height; \ const int width = out->width; \ const int z = (expr progress) * height; \ \ for (int p = 0; p < s->nb_planes; p++) { \ type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ \ for (int y = slice_start; y < slice_end; y++) { \ const int zy = z + y; \ const int zz = zy % height + height * (zy < 0); \ const type *xf0 = (const type *)(a->data[p] + zz * a->linesize[p]); \ const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \ \ for (int x = 0; x < width; x++) \ dst[x] = (zy >= 0) && (zy < height) ? xf1[x] : xf0[x]; \ \ dst += out->linesize[p] / div; \ } \ } \ } REVEALV_TRANSITION(up, 8, uint8_t, 1, -) REVEALV_TRANSITION(up, 16, uint16_t, 2, -) REVEALV_TRANSITION(down, 8, uint8_t, 1, ) REVEALV_TRANSITION(down, 16, uint16_t, 2, ) static inline double getpix(void *priv, double x, double y, int plane, int nb) { XFadeContext *s = priv; AVFrame *in = s->xf[nb]; const uint8_t *src = in->data[FFMIN(plane, s->nb_planes - 1)]; int linesize = in->linesize[FFMIN(plane, s->nb_planes - 1)]; const int w = in->width; const int h = in->height; int xi, yi; xi = av_clipd(x, 0, w - 1); yi = av_clipd(y, 0, h - 1); if (s->depth > 8) { const uint16_t *src16 = (const uint16_t*)src; linesize /= 2; return src16[xi + yi * linesize]; } else { return src[xi + yi * linesize]; } } static double a0(void *priv, double x, double y) { return getpix(priv, x, y, 0, 0); } static double a1(void *priv, double x, double y) { return getpix(priv, x, y, 1, 0); } static double a2(void *priv, double x, double y) { return getpix(priv, x, y, 2, 0); } static double a3(void *priv, double x, double y) { return getpix(priv, x, y, 3, 0); } static double b0(void *priv, double x, double y) { return getpix(priv, x, y, 0, 1); } static double b1(void *priv, double x, double y) { return getpix(priv, x, y, 1, 1); } static double b2(void *priv, double x, double y) { return getpix(priv, x, y, 2, 1); } static double b3(void *priv, double x, double y) { return getpix(priv, x, y, 3, 1); } static int config_output(AVFilterLink *outlink) { AVFilterContext *ctx = outlink->src; AVFilterLink *inlink0 = ctx->inputs[0]; AVFilterLink *inlink1 = ctx->inputs[1]; XFadeContext *s = ctx->priv; const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink0->format); if (inlink0->w != inlink1->w || inlink0->h != inlink1->h) { av_log(ctx, AV_LOG_ERROR, "First input link %s parameters " "(size %dx%d) do not match the corresponding " "second input link %s parameters (size %dx%d)\n", ctx->input_pads[0].name, inlink0->w, inlink0->h, ctx->input_pads[1].name, inlink1->w, inlink1->h); return AVERROR(EINVAL); } if (inlink0->time_base.num != inlink1->time_base.num || inlink0->time_base.den != inlink1->time_base.den) { av_log(ctx, AV_LOG_ERROR, "First input link %s timebase " "(%d/%d) do not match the corresponding " "second input link %s timebase (%d/%d)\n", ctx->input_pads[0].name, inlink0->time_base.num, inlink0->time_base.den, ctx->input_pads[1].name, inlink1->time_base.num, inlink1->time_base.den); return AVERROR(EINVAL); } if (!inlink0->frame_rate.num || !inlink0->frame_rate.den) { av_log(ctx, AV_LOG_ERROR, "The inputs needs to be a constant frame rate; " "current rate of %d/%d is invalid\n", inlink0->frame_rate.num, inlink0->frame_rate.den); return AVERROR(EINVAL); } if (inlink0->frame_rate.num != inlink1->frame_rate.num || inlink0->frame_rate.den != inlink1->frame_rate.den) { av_log(ctx, AV_LOG_ERROR, "First input link %s frame rate " "(%d/%d) do not match the corresponding " "second input link %s frame rate (%d/%d)\n", ctx->input_pads[0].name, inlink0->frame_rate.num, inlink0->frame_rate.den, ctx->input_pads[1].name, inlink1->frame_rate.num, inlink1->frame_rate.den); return AVERROR(EINVAL); } outlink->w = inlink0->w; outlink->h = inlink0->h; outlink->time_base = inlink0->time_base; outlink->sample_aspect_ratio = inlink0->sample_aspect_ratio; outlink->frame_rate = inlink0->frame_rate; s->depth = pix_desc->comp[0].depth; s->is_rgb = !!(pix_desc->flags & AV_PIX_FMT_FLAG_RGB); s->nb_planes = av_pix_fmt_count_planes(inlink0->format); s->max_value = (1 << s->depth) - 1; s->black[0] = 0; s->black[1] = s->black[2] = s->is_rgb ? 0 : s->max_value / 2; s->black[3] = s->max_value; s->white[0] = s->white[3] = s->max_value; s->white[1] = s->white[2] = s->is_rgb ? s->max_value : s->max_value / 2; s->start_pts = s->inputs_offset_pts = AV_NOPTS_VALUE; if (s->duration) s->duration_pts = av_rescale_q(s->duration, AV_TIME_BASE_Q, outlink->time_base); switch (s->transition) { case CUSTOM: s->transitionf = s->depth <= 8 ? custom8_transition : custom16_transition; break; case FADE: s->transitionf = s->depth <= 8 ? fade8_transition : fade16_transition; break; case WIPELEFT: s->transitionf = s->depth <= 8 ? wipeleft8_transition : wipeleft16_transition; break; case WIPERIGHT: s->transitionf = s->depth <= 8 ? wiperight8_transition : wiperight16_transition; break; case WIPEUP: s->transitionf = s->depth <= 8 ? wipeup8_transition : wipeup16_transition; break; case WIPEDOWN: s->transitionf = s->depth <= 8 ? wipedown8_transition : wipedown16_transition; break; case SLIDELEFT: s->transitionf = s->depth <= 8 ? slideleft8_transition : slideleft16_transition; break; case SLIDERIGHT: s->transitionf = s->depth <= 8 ? slideright8_transition : slideright16_transition; break; case SLIDEUP: s->transitionf = s->depth <= 8 ? slideup8_transition : slideup16_transition; break; case SLIDEDOWN: s->transitionf = s->depth <= 8 ? slidedown8_transition : slidedown16_transition; break; case CIRCLECROP: s->transitionf = s->depth <= 8 ? circlecrop8_transition : circlecrop16_transition; break; case RECTCROP: s->transitionf = s->depth <= 8 ? rectcrop8_transition : rectcrop16_transition; break; case DISTANCE: s->transitionf = s->depth <= 8 ? distance8_transition : distance16_transition; break; case FADEBLACK: s->transitionf = s->depth <= 8 ? fadeblack8_transition : fadeblack16_transition; break; case FADEWHITE: s->transitionf = s->depth <= 8 ? fadewhite8_transition : fadewhite16_transition; break; case RADIAL: s->transitionf = s->depth <= 8 ? radial8_transition : radial16_transition; break; case SMOOTHLEFT: s->transitionf = s->depth <= 8 ? smoothleft8_transition : smoothleft16_transition; break; case SMOOTHRIGHT:s->transitionf = s->depth <= 8 ? smoothright8_transition: smoothright16_transition;break; case SMOOTHUP: s->transitionf = s->depth <= 8 ? smoothup8_transition : smoothup16_transition; break; case SMOOTHDOWN: s->transitionf = s->depth <= 8 ? smoothdown8_transition : smoothdown16_transition; break; case CIRCLEOPEN: s->transitionf = s->depth <= 8 ? circleopen8_transition : circleopen16_transition; break; case CIRCLECLOSE:s->transitionf = s->depth <= 8 ? circleclose8_transition: circleclose16_transition;break; case VERTOPEN: s->transitionf = s->depth <= 8 ? vertopen8_transition : vertopen16_transition; break; case VERTCLOSE: s->transitionf = s->depth <= 8 ? vertclose8_transition : vertclose16_transition; break; case HORZOPEN: s->transitionf = s->depth <= 8 ? horzopen8_transition : horzopen16_transition; break; case HORZCLOSE: s->transitionf = s->depth <= 8 ? horzclose8_transition : horzclose16_transition; break; case DISSOLVE: s->transitionf = s->depth <= 8 ? dissolve8_transition : dissolve16_transition; break; case PIXELIZE: s->transitionf = s->depth <= 8 ? pixelize8_transition : pixelize16_transition; break; case DIAGTL: s->transitionf = s->depth <= 8 ? diagtl8_transition : diagtl16_transition; break; case DIAGTR: s->transitionf = s->depth <= 8 ? diagtr8_transition : diagtr16_transition; break; case DIAGBL: s->transitionf = s->depth <= 8 ? diagbl8_transition : diagbl16_transition; break; case DIAGBR: s->transitionf = s->depth <= 8 ? diagbr8_transition : diagbr16_transition; break; case HLSLICE: s->transitionf = s->depth <= 8 ? hlslice8_transition : hlslice16_transition; break; case HRSLICE: s->transitionf = s->depth <= 8 ? hrslice8_transition : hrslice16_transition; break; case VUSLICE: s->transitionf = s->depth <= 8 ? vuslice8_transition : vuslice16_transition; break; case VDSLICE: s->transitionf = s->depth <= 8 ? vdslice8_transition : vdslice16_transition; break; case HBLUR: s->transitionf = s->depth <= 8 ? hblur8_transition : hblur16_transition; break; case FADEGRAYS: s->transitionf = s->depth <= 8 ? fadegrays8_transition : fadegrays16_transition; break; case WIPETL: s->transitionf = s->depth <= 8 ? wipetl8_transition : wipetl16_transition; break; case WIPETR: s->transitionf = s->depth <= 8 ? wipetr8_transition : wipetr16_transition; break; case WIPEBL: s->transitionf = s->depth <= 8 ? wipebl8_transition : wipebl16_transition; break; case WIPEBR: s->transitionf = s->depth <= 8 ? wipebr8_transition : wipebr16_transition; break; case SQUEEZEH: s->transitionf = s->depth <= 8 ? squeezeh8_transition : squeezeh16_transition; break; case SQUEEZEV: s->transitionf = s->depth <= 8 ? squeezev8_transition : squeezev16_transition; break; case ZOOMIN: s->transitionf = s->depth <= 8 ? zoomin8_transition : zoomin16_transition; break; case FADEFAST: s->transitionf = s->depth <= 8 ? fadefast8_transition : fadefast16_transition; break; case FADESLOW: s->transitionf = s->depth <= 8 ? fadeslow8_transition : fadeslow16_transition; break; case HLWIND: s->transitionf = s->depth <= 8 ? hlwind8_transition : hlwind16_transition; break; case HRWIND: s->transitionf = s->depth <= 8 ? hrwind8_transition : hrwind16_transition; break; case VUWIND: s->transitionf = s->depth <= 8 ? vuwind8_transition : vuwind16_transition; break; case VDWIND: s->transitionf = s->depth <= 8 ? vdwind8_transition : vdwind16_transition; break; case COVERLEFT: s->transitionf = s->depth <= 8 ? coverleft8_transition : coverleft16_transition; break; case COVERRIGHT: s->transitionf = s->depth <= 8 ? coverright8_transition : coverright16_transition; break; case COVERUP: s->transitionf = s->depth <= 8 ? coverup8_transition : coverup16_transition; break; case COVERDOWN: s->transitionf = s->depth <= 8 ? coverdown8_transition : coverdown16_transition; break; case REVEALLEFT: s->transitionf = s->depth <= 8 ? revealleft8_transition : revealleft16_transition; break; case REVEALRIGHT:s->transitionf = s->depth <= 8 ? revealright8_transition: revealright16_transition;break; case REVEALUP: s->transitionf = s->depth <= 8 ? revealup8_transition : revealup16_transition; break; case REVEALDOWN: s->transitionf = s->depth <= 8 ? revealdown8_transition : revealdown16_transition; break; default: return AVERROR_BUG; } if (s->transition == CUSTOM) { static const char *const func2_names[] = { "a0", "a1", "a2", "a3", "b0", "b1", "b2", "b3", NULL }; double (*func2[])(void *, double, double) = { a0, a1, a2, a3, b0, b1, b2, b3, NULL }; int ret; if (!s->custom_str) return AVERROR(EINVAL); ret = av_expr_parse(&s->e, s->custom_str, var_names, NULL, NULL, func2_names, func2, 0, ctx); if (ret < 0) return ret; } return 0; } static int xfade_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { XFadeContext *s = ctx->priv; AVFilterLink *outlink = ctx->outputs[0]; ThreadData *td = arg; int slice_start = (outlink->h * jobnr ) / nb_jobs; int slice_end = (outlink->h * (jobnr+1)) / nb_jobs; s->transitionf(ctx, td->xf[0], td->xf[1], td->out, td->progress, slice_start, slice_end, jobnr); return 0; } static int xfade_frame(AVFilterContext *ctx, AVFrame *a, AVFrame *b) { XFadeContext *s = ctx->priv; AVFilterLink *outlink = ctx->outputs[0]; float progress = av_clipf(1.f - ((float)(s->pts - s->start_pts) / s->duration_pts), 0.f, 1.f); ThreadData td; AVFrame *out; out = ff_get_video_buffer(outlink, outlink->w, outlink->h); if (!out) return AVERROR(ENOMEM); av_frame_copy_props(out, a); td.xf[0] = a, td.xf[1] = b, td.out = out, td.progress = progress; ff_filter_execute(ctx, xfade_slice, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx))); out->pts = s->pts; return ff_filter_frame(outlink, out); } static int forward_frame(XFadeContext *s, AVFilterLink *inlink, AVFilterLink *outlink) { int64_t status_pts; int ret = 0, status; AVFrame *frame = NULL; ret = ff_inlink_consume_frame(inlink, &frame); if (ret < 0) return ret; if (ret > 0) { // If we do not have an offset yet, it's because we // never got a first input. Just offset to 0 if (s->inputs_offset_pts == AV_NOPTS_VALUE) s->inputs_offset_pts = -frame->pts; // We got a frame, nothing to do other than adjusting the timestamp frame->pts += s->inputs_offset_pts; return ff_filter_frame(outlink, frame); } // Forward status with our timestamp if (ff_inlink_acknowledge_status(inlink, &status, &status_pts)) { if (s->inputs_offset_pts == AV_NOPTS_VALUE) s->inputs_offset_pts = -status_pts; ff_outlink_set_status(outlink, status, status_pts + s->inputs_offset_pts); return 0; } // No frame available, request one if needed if (ff_outlink_frame_wanted(outlink)) ff_inlink_request_frame(inlink); return 0; } static int xfade_activate(AVFilterContext *avctx) { XFadeContext *s = avctx->priv; AVFilterLink *in_a = avctx->inputs[0]; AVFilterLink *in_b = avctx->inputs[1]; AVFilterLink *outlink = avctx->outputs[0]; int64_t status_pts; FF_FILTER_FORWARD_STATUS_BACK_ALL(outlink, avctx); // Check if we already transitioned or first input ended prematurely, // in which case just forward the frames from second input with adjusted // timestamps until EOF. if (s->status[0] && !s->status[1]) return forward_frame(s, in_b, outlink); // We did not finish transitioning yet and the first stream // did not end either, so check if there are more frames to consume. if (ff_inlink_check_available_frame(in_a)) { AVFrame *peeked_frame = ff_inlink_peek_frame(in_a, 0); s->pts = peeked_frame->pts; if (s->start_pts == AV_NOPTS_VALUE) s->start_pts = s->pts + av_rescale_q(s->offset, AV_TIME_BASE_Q, in_a->time_base); // Check if we are not yet transitioning, in which case // just request and forward the input frame. if (s->start_pts > s->pts) { s->passthrough = 1; ff_inlink_consume_frame(in_a, &s->xf[0]); return ff_filter_frame(outlink, s->xf[0]); } s->passthrough = 0; // We are transitioning, so we need a frame from second input if (ff_inlink_check_available_frame(in_b)) { int ret; ff_inlink_consume_frame(avctx->inputs[0], &s->xf[0]); ff_inlink_consume_frame(avctx->inputs[1], &s->xf[1]); // Calculate PTS offset to first input if (s->inputs_offset_pts == AV_NOPTS_VALUE) s->inputs_offset_pts = s->pts - s->xf[1]->pts; // Check if we finished transitioning, in which case we // report back EOF to first input as it is no longer needed. if (s->pts - s->start_pts > s->duration_pts) { s->status[0] = AVERROR_EOF; ff_inlink_set_status(in_a, AVERROR_EOF); s->passthrough = 1; } ret = xfade_frame(avctx, s->xf[0], s->xf[1]); av_frame_free(&s->xf[0]); av_frame_free(&s->xf[1]); return ret; } // We did not get a frame from second input, check its status. if (ff_inlink_acknowledge_status(in_b, &s->status[1], &status_pts)) { // We should transition, but second input is EOF so just report EOF output now. ff_outlink_set_status(outlink, s->status[1], s->pts); return 0; } // We did not get a frame for second input but no EOF either, so just request more. if (ff_outlink_frame_wanted(outlink)) { ff_inlink_request_frame(in_b); return 0; } } // We did not get a frame from first input, check its status. if (ff_inlink_acknowledge_status(in_a, &s->status[0], &status_pts)) { // No more frames from first input, do not report EOF though, we will just // forward the second input frames in the next activate calls. s->passthrough = 1; ff_filter_set_ready(avctx, 100); return 0; } // We have no frames yet from first input and no EOF, so request some. if (ff_outlink_frame_wanted(outlink)) { ff_inlink_request_frame(in_a); return 0; } return FFERROR_NOT_READY; } static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h) { XFadeContext *s = inlink->dst->priv; return s->passthrough ? ff_null_get_video_buffer (inlink, w, h) : ff_default_get_video_buffer(inlink, w, h); } static const AVFilterPad xfade_inputs[] = { { .name = "main", .type = AVMEDIA_TYPE_VIDEO, .get_buffer.video = get_video_buffer, }, { .name = "xfade", .type = AVMEDIA_TYPE_VIDEO, .get_buffer.video = get_video_buffer, }, }; static const AVFilterPad xfade_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .config_props = config_output, }, }; const AVFilter ff_vf_xfade = { .name = "xfade", .description = NULL_IF_CONFIG_SMALL("Cross fade one video with another video."), .priv_size = sizeof(XFadeContext), .priv_class = &xfade_class, .activate = xfade_activate, .uninit = uninit, FILTER_INPUTS(xfade_inputs), FILTER_OUTPUTS(xfade_outputs), FILTER_PIXFMTS_ARRAY(pix_fmts), .flags = AVFILTER_FLAG_SLICE_THREADS, };