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FFmpeg/libavfilter/vf_xfade.c
Anton Khirnov 6d75d44d90 lavfi: drop internal.h 
All that remains in it are things that belong in avfilter_internal.h.

Move them there and remove internal.h
2024-08-19 21:48:04 +02:00

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/*
* 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 "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 / 2.0; \
\
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 / 2.0; \
\
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 / 2.0; \
\
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 / 2.0; \
\
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];
FilterLink *inl0 = ff_filter_link(inlink0);
FilterLink *inl1 = ff_filter_link(inlink1);
FilterLink *ol = ff_filter_link(outlink);
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 (!inl0->frame_rate.num || !inl0->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", inl0->frame_rate.num, inl0->frame_rate.den);
return AVERROR(EINVAL);
}
if (inl0->frame_rate.num != inl1->frame_rate.num ||
inl0->frame_rate.den != inl1->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, inl0->frame_rate.num, inl0->frame_rate.den,
ctx->input_pads[1].name, inl1->frame_rate.num, inl1->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;
ol->frame_rate = inl0->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) {
int ret;
s->passthrough = 1;
ret = ff_inlink_consume_frame(in_a, &s->xf[0]);
if (ret < 0)
return ret;
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;
ret = ff_inlink_consume_frame(avctx->inputs[0], &s->xf[0]);
if (ret < 0)
return ret;
ret = ff_inlink_consume_frame(avctx->inputs[1], &s->xf[1]);
if (ret < 0) {
av_frame_free(&s->xf[0]);
return ret;
}
// 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,
};
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