mirror of https://github.com/FFmpeg/FFmpeg.git
Paul B Mahol
5 years ago
parent
6087692a60
commit
863accbefa
6 changed files with 1019 additions and 1 deletions
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/*
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* Copyright (c) 2020 Paul B Mahol |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/imgutils.h" |
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#include "libavutil/eval.h" |
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#include "libavutil/opt.h" |
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#include "libavutil/pixfmt.h" |
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#include "avfilter.h" |
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#include "formats.h" |
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#include "framesync.h" |
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#include "internal.h" |
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#include "filters.h" |
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#include "video.h" |
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enum XFadeTransitions { |
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CUSTOM = -1, |
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FADE, |
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WIPELEFT, |
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WIPERIGHT, |
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WIPEUP, |
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WIPEDOWN, |
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SLIDELEFT, |
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SLIDERIGHT, |
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SLIDEUP, |
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SLIDEDOWN, |
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CIRCLECROP, |
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RECTCROP, |
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DISTANCE, |
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FADEBLACK, |
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FADEWHITE, |
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NB_TRANSITIONS, |
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}; |
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typedef struct XFadeContext { |
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const AVClass *class; |
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int transition; |
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int64_t duration; |
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int64_t offset; |
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char *custom_str; |
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int nb_planes; |
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int depth; |
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int64_t duration_pts; |
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int64_t offset_pts; |
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int64_t first_pts; |
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int64_t last_pts; |
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int64_t pts; |
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int xfade_is_over; |
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int need_second; |
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int eof[2]; |
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AVFrame *xf[2]; |
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int max_value; |
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uint16_t black[4]; |
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uint16_t white[4]; |
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void (*transitionf)(AVFilterContext *ctx, const AVFrame *a, const AVFrame *b, AVFrame *out, float progress, |
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int slice_start, int slice_end, int jobnr); |
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AVExpr *e; |
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} XFadeContext; |
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static const char *const var_names[] = { "X", "Y", "W", "H", "A", "B", "PLANE", "P", NULL }; |
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enum { VAR_X, VAR_Y, VAR_W, VAR_H, VAR_A, VAR_B, VAR_PLANE, VAR_PROGRESS, VAR_VARS_NB }; |
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typedef struct ThreadData { |
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const AVFrame *xf[2]; |
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AVFrame *out; |
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float progress; |
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} ThreadData; |
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static int query_formats(AVFilterContext *ctx) |
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{ |
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static const enum AVPixelFormat pix_fmts[] = { |
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AV_PIX_FMT_YUVA444P, |
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AV_PIX_FMT_YUVJ444P, |
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AV_PIX_FMT_YUV444P, |
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AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, AV_PIX_FMT_GRAY8, |
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AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_GBRP9, |
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AV_PIX_FMT_YUV444P10, |
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AV_PIX_FMT_YUVA444P10, |
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AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GRAY10, |
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AV_PIX_FMT_YUV444P12, |
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AV_PIX_FMT_YUVA444P12, |
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AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GRAY12, |
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AV_PIX_FMT_YUV444P14, AV_PIX_FMT_GBRP14, |
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AV_PIX_FMT_YUV444P16, |
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AV_PIX_FMT_YUVA444P16, |
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AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16, AV_PIX_FMT_GRAY16, |
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AV_PIX_FMT_NONE |
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}; |
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AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts); |
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if (!fmts_list) |
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return AVERROR(ENOMEM); |
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return ff_set_common_formats(ctx, fmts_list); |
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} |
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static av_cold void uninit(AVFilterContext *ctx) |
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{ |
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XFadeContext *s = ctx->priv; |
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av_expr_free(s->e); |
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} |
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#define OFFSET(x) offsetof(XFadeContext, x) |
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#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) |
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static const AVOption xfade_options[] = { |
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{ "transition", "set cross fade transition", OFFSET(transition), AV_OPT_TYPE_INT, {.i64=FADE}, -1, NB_TRANSITIONS-1, FLAGS, "transition" }, |
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{ "custom", "custom transition", 0, AV_OPT_TYPE_CONST, {.i64=CUSTOM}, 0, 0, FLAGS, "transition" }, |
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{ "fade", "fade transition", 0, AV_OPT_TYPE_CONST, {.i64=FADE}, 0, 0, FLAGS, "transition" }, |
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{ "wipeleft", "wipe left transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPELEFT}, 0, 0, FLAGS, "transition" }, |
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{ "wiperight", "wipe right transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPERIGHT}, 0, 0, FLAGS, "transition" }, |
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{ "wipeup", "wipe up transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPEUP}, 0, 0, FLAGS, "transition" }, |
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{ "wipedown", "wipe down transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPEDOWN}, 0, 0, FLAGS, "transition" }, |
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{ "slideleft", "slide left transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDELEFT}, 0, 0, FLAGS, "transition" }, |
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{ "slideright", "slide right transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDERIGHT}, 0, 0, FLAGS, "transition" }, |
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{ "slideup", "slide up transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDEUP}, 0, 0, FLAGS, "transition" }, |
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{ "slidedown", "slide down transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDEDOWN}, 0, 0, FLAGS, "transition" }, |
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{ "circlecrop", "circle crop transition", 0, AV_OPT_TYPE_CONST, {.i64=CIRCLECROP}, 0, 0, FLAGS, "transition" }, |
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{ "rectcrop", "rect crop transition", 0, AV_OPT_TYPE_CONST, {.i64=RECTCROP}, 0, 0, FLAGS, "transition" }, |
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{ "distance", "distance transition", 0, AV_OPT_TYPE_CONST, {.i64=DISTANCE}, 0, 0, FLAGS, "transition" }, |
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{ "fadeblack", "fadeblack transition", 0, AV_OPT_TYPE_CONST, {.i64=FADEBLACK}, 0, 0, FLAGS, "transition" }, |
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{ "fadewhite", "fadewhite transition", 0, AV_OPT_TYPE_CONST, {.i64=FADEWHITE}, 0, 0, FLAGS, "transition" }, |
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{ "duration", "set cross fade duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64=1000000}, 0, 60000000, FLAGS }, |
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{ "offset", "set cross fade start relative to first input stream", OFFSET(offset), AV_OPT_TYPE_DURATION, {.i64=0}, INT64_MIN, INT64_MAX, FLAGS }, |
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{ "expr", "set expression for custom transition", OFFSET(custom_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
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{ NULL } |
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}; |
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AVFILTER_DEFINE_CLASS(xfade); |
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#define CUSTOM_TRANSITION(name, type, div) \ |
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static void custom##name##_transition(AVFilterContext *ctx, \
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const AVFrame *a, const AVFrame *b, AVFrame *out, \
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float progress, \
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int slice_start, int slice_end, int jobnr) \
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{ \
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XFadeContext *s = ctx->priv; \
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const int height = slice_end - slice_start; \
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\
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double values[VAR_VARS_NB]; \
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values[VAR_W] = out->width; \
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values[VAR_H] = out->height; \
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values[VAR_PROGRESS] = progress; \
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\
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for (int p = 0; p < s->nb_planes; p++) { \
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const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
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const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
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type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
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\
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values[VAR_PLANE] = p; \
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\
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for (int y = 0; y < height; y++) { \
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values[VAR_Y] = slice_start + y; \
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for (int x = 0; x < out->width; x++) { \
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values[VAR_X] = x; \
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values[VAR_A] = xf0[x]; \
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values[VAR_B] = xf1[x]; \
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dst[x] = av_expr_eval(s->e, values, s); \
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} \
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\
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dst += out->linesize[p] / div; \
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xf0 += a->linesize[p] / div; \
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xf1 += b->linesize[p] / div; \
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} \
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} \
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} |
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CUSTOM_TRANSITION(8, uint8_t, 1) |
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CUSTOM_TRANSITION(16, uint16_t, 2) |
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static inline float mix(float a, float b, float mix) |
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{ |
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return a * mix + b * (1.f - mix); |
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} |
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static inline float smoothstep(float edge0, float edge1, float x) |
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{ |
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float t; |
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t = av_clipf((x - edge0) / (edge1 - edge0), 0.f, 1.f); |
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return t * t * (3.f - 2.f * t); |
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} |
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#define FADE_TRANSITION(name, type, div) \ |
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static void fade##name##_transition(AVFilterContext *ctx, \
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const AVFrame *a, const AVFrame *b, AVFrame *out, \
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float progress, \
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int slice_start, int slice_end, int jobnr) \
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{ \
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XFadeContext *s = ctx->priv; \
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const int height = slice_end - slice_start; \
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\
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for (int p = 0; p < s->nb_planes; p++) { \
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const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
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const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
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type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
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\
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for (int y = 0; y < height; y++) { \
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for (int x = 0; x < out->width; x++) { \
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dst[x] = mix(xf0[x], xf1[x], progress); \
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} \
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\
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dst += out->linesize[p] / div; \
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xf0 += a->linesize[p] / div; \
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xf1 += b->linesize[p] / div; \
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} \
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} \
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} |
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FADE_TRANSITION(8, uint8_t, 1) |
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FADE_TRANSITION(16, uint16_t, 2) |
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#define WIPELEFT_TRANSITION(name, type, div) \ |
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static void wipeleft##name##_transition(AVFilterContext *ctx, \
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const AVFrame *a, const AVFrame *b, AVFrame *out, \
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float progress, \
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int slice_start, int slice_end, int jobnr) \
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{ \
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XFadeContext *s = ctx->priv; \
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const int height = slice_end - slice_start; \
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const int z = out->width * progress; \
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\
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for (int p = 0; p < s->nb_planes; p++) { \
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const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
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const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
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type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
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\
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for (int y = 0; y < height; y++) { \
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for (int x = 0; x < out->width; x++) { \
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dst[x] = x > z ? xf1[x] : xf0[x]; \
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} \
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\
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dst += out->linesize[p] / div; \
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xf0 += a->linesize[p] / div; \
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xf1 += b->linesize[p] / div; \
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} \
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} \
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} |
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WIPELEFT_TRANSITION(8, uint8_t, 1) |
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WIPELEFT_TRANSITION(16, uint16_t, 2) |
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#define WIPERIGHT_TRANSITION(name, type, div) \ |
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static void wiperight##name##_transition(AVFilterContext *ctx, \
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const AVFrame *a, const AVFrame *b, AVFrame *out, \
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float progress, \
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int slice_start, int slice_end, int jobnr) \
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{ \
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XFadeContext *s = ctx->priv; \
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const int height = slice_end - slice_start; \
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const int z = out->width * (1.f - progress); \
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\
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for (int p = 0; p < s->nb_planes; p++) { \
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const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
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const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
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type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
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\
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for (int y = 0; y < height; y++) { \
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for (int x = 0; x < out->width; x++) { \
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dst[x] = x > z ? xf0[x] : xf1[x]; \
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} \
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\
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dst += out->linesize[p] / div; \
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xf0 += a->linesize[p] / div; \
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xf1 += b->linesize[p] / div; \
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} \
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} \
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} |
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WIPERIGHT_TRANSITION(8, uint8_t, 1) |
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WIPERIGHT_TRANSITION(16, uint16_t, 2) |
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#define WIPEUP_TRANSITION(name, type, div) \ |
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static void wipeup##name##_transition(AVFilterContext *ctx, \
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const AVFrame *a, const AVFrame *b, AVFrame *out, \
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float progress, \
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int slice_start, int slice_end, int jobnr) \
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{ \
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XFadeContext *s = ctx->priv; \
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const int height = slice_end - slice_start; \
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const int z = out->height * progress; \
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\
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for (int p = 0; p < s->nb_planes; p++) { \
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const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
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const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
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type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
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\
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for (int y = 0; y < height; y++) { \
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for (int x = 0; x < out->width; x++) { \
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dst[x] = slice_start + y > z ? xf1[x] : xf0[x]; \
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} \
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\
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dst += out->linesize[p] / div; \
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xf0 += a->linesize[p] / div; \
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xf1 += b->linesize[p] / div; \
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} \
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} \
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} |
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WIPEUP_TRANSITION(8, uint8_t, 1) |
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WIPEUP_TRANSITION(16, uint16_t, 2) |
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#define WIPEDOWN_TRANSITION(name, type, div) \ |
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static void wipedown##name##_transition(AVFilterContext *ctx, \
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const AVFrame *a, const AVFrame *b, AVFrame *out, \
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float progress, \
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int slice_start, int slice_end, int jobnr) \
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{ \
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XFadeContext *s = ctx->priv; \
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const int height = slice_end - slice_start; \
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const int z = out->height * (1.f - progress); \
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\
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for (int p = 0; p < s->nb_planes; p++) { \
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const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
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const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
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type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
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\
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for (int y = 0; y < height; y++) { \
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for (int x = 0; x < out->width; x++) { \
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dst[x] = slice_start + y > z ? xf0[x] : xf1[x]; \
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} \
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\
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dst += out->linesize[p] / div; \
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xf0 += a->linesize[p] / div; \
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xf1 += b->linesize[p] / div; \
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} \
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} \
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} |
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WIPEDOWN_TRANSITION(8, uint8_t, 1) |
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WIPEDOWN_TRANSITION(16, uint16_t, 2) |
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#define SLIDELEFT_TRANSITION(name, type, div) \ |
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static void slideleft##name##_transition(AVFilterContext *ctx, \
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const AVFrame *a, const AVFrame *b, AVFrame *out, \
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float progress, \
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int slice_start, int slice_end, int jobnr) \
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{ \
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XFadeContext *s = ctx->priv; \
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const int height = slice_end - slice_start; \
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const int width = out->width; \
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const int z = -progress * width; \
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\
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for (int p = 0; p < s->nb_planes; p++) { \
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const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
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const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
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type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
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\
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for (int y = 0; y < height; y++) { \
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for (int x = 0; x < width; x++) { \
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const int zx = z + x; \
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const int zz = zx % width + width * (zx < 0); \
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dst[x] = (zx > 0) && (zx < width) ? xf1[zz] : xf0[zz]; \
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} \
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\
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dst += out->linesize[p] / div; \
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xf0 += a->linesize[p] / div; \
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xf1 += b->linesize[p] / div; \
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} \
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} \
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} |
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SLIDELEFT_TRANSITION(8, uint8_t, 1) |
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SLIDELEFT_TRANSITION(16, uint16_t, 2) |
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#define SLIDERIGHT_TRANSITION(name, type, div) \ |
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static void slideright##name##_transition(AVFilterContext *ctx, \
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const AVFrame *a, const AVFrame *b, AVFrame *out, \
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float progress, \
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int slice_start, int slice_end, int jobnr) \
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{ \
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XFadeContext *s = ctx->priv; \
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const int height = slice_end - slice_start; \
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const int width = out->width; \
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const int z = progress * width; \
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\
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for (int p = 0; p < s->nb_planes; p++) { \
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const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
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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 < out->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 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 < out->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 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 < out->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 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 < out->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 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 < out->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) |
||||
|
||||
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); |
||||
int is_rgb; |
||||
|
||||
if (inlink0->format != inlink1->format) { |
||||
av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n"); |
||||
return AVERROR(EINVAL); |
||||
} |
||||
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); |
||||
} |
||||
|
||||
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; |
||||
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] = 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] = is_rgb ? s->max_value : s->max_value / 2; |
||||
|
||||
s->first_pts = s->last_pts = s->pts = AV_NOPTS_VALUE; |
||||
|
||||
if (s->duration) |
||||
s->duration_pts = av_rescale_q(s->duration, AV_TIME_BASE_Q, outlink->time_base); |
||||
if (s->offset) |
||||
s->offset_pts = av_rescale_q(s->offset, 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; |
||||
} |
||||
|
||||
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->first_pts - s->offset_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); |
||||
|
||||
td.xf[0] = a, td.xf[1] = b, td.out = out, td.progress = progress; |
||||
ctx->internal->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 xfade_activate(AVFilterContext *ctx) |
||||
{ |
||||
XFadeContext *s = ctx->priv; |
||||
AVFilterLink *outlink = ctx->outputs[0]; |
||||
AVFrame *in = NULL; |
||||
int ret = 0, status; |
||||
int64_t pts; |
||||
|
||||
FF_FILTER_FORWARD_STATUS_BACK_ALL(outlink, ctx); |
||||
|
||||
if (s->xfade_is_over) { |
||||
ret = ff_inlink_consume_frame(ctx->inputs[1], &in); |
||||
if (ret < 0) { |
||||
return ret; |
||||
} else if (ff_inlink_acknowledge_status(ctx->inputs[1], &status, &pts)) { |
||||
ff_outlink_set_status(outlink, status, s->pts); |
||||
return 0; |
||||
} else if (!ret) { |
||||
if (ff_outlink_frame_wanted(outlink)) { |
||||
ff_inlink_request_frame(ctx->inputs[1]); |
||||
return 0; |
||||
} |
||||
} else { |
||||
in->pts = (in->pts - s->last_pts) + s->pts; |
||||
return ff_filter_frame(outlink, in); |
||||
} |
||||
} |
||||
|
||||
if (ff_inlink_queued_frames(ctx->inputs[0]) > 0) { |
||||
s->xf[0] = ff_inlink_peek_frame(ctx->inputs[0], 0); |
||||
if (s->xf[0]) { |
||||
if (s->first_pts == AV_NOPTS_VALUE) { |
||||
s->first_pts = s->xf[0]->pts; |
||||
} |
||||
s->pts = s->xf[0]->pts; |
||||
if (s->first_pts + s->offset_pts > s->xf[0]->pts) { |
||||
s->xf[0] = NULL; |
||||
s->need_second = 0; |
||||
ff_inlink_consume_frame(ctx->inputs[0], &in); |
||||
return ff_filter_frame(outlink, in); |
||||
} |
||||
|
||||
s->need_second = 1; |
||||
} |
||||
} |
||||
|
||||
if (s->xf[0] && ff_inlink_queued_frames(ctx->inputs[1]) > 0) { |
||||
ff_inlink_consume_frame(ctx->inputs[0], &s->xf[0]); |
||||
ff_inlink_consume_frame(ctx->inputs[1], &s->xf[1]); |
||||
|
||||
s->last_pts = s->xf[1]->pts; |
||||
s->pts = s->xf[0]->pts; |
||||
if (s->xf[0]->pts - (s->first_pts + s->offset_pts) > s->duration_pts) |
||||
s->xfade_is_over = 1; |
||||
ret = xfade_frame(ctx, s->xf[0], s->xf[1]); |
||||
av_frame_free(&s->xf[0]); |
||||
av_frame_free(&s->xf[1]); |
||||
return ret; |
||||
} |
||||
|
||||
if (ff_inlink_queued_frames(ctx->inputs[0]) > 0 && |
||||
ff_inlink_queued_frames(ctx->inputs[1]) > 0) { |
||||
ff_filter_set_ready(ctx, 100); |
||||
return 0; |
||||
} |
||||
|
||||
if (ff_outlink_frame_wanted(outlink)) { |
||||
if (!s->eof[0] && ff_outlink_get_status(ctx->inputs[0])) { |
||||
s->eof[0] = 1; |
||||
s->xfade_is_over = 1; |
||||
} |
||||
if (!s->eof[1] && ff_outlink_get_status(ctx->inputs[1])) { |
||||
s->eof[1] = 1; |
||||
} |
||||
if (!s->eof[0] && !s->xf[0]) |
||||
ff_inlink_request_frame(ctx->inputs[0]); |
||||
if (!s->eof[1] && (s->need_second || s->eof[0])) |
||||
ff_inlink_request_frame(ctx->inputs[1]); |
||||
if (s->eof[0] && s->eof[1] && ( |
||||
ff_inlink_queued_frames(ctx->inputs[0]) <= 0 || |
||||
ff_inlink_queued_frames(ctx->inputs[1]) <= 0)) |
||||
ff_outlink_set_status(outlink, AVERROR_EOF, AV_NOPTS_VALUE); |
||||
return 0; |
||||
} |
||||
|
||||
return FFERROR_NOT_READY; |
||||
} |
||||
|
||||
static const AVFilterPad xfade_inputs[] = { |
||||
{ |
||||
.name = "main", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
}, |
||||
{ |
||||
.name = "xfade", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
}, |
||||
{ NULL } |
||||
}; |
||||
|
||||
static const AVFilterPad xfade_outputs[] = { |
||||
{ |
||||
.name = "default", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.config_props = config_output, |
||||
}, |
||||
{ NULL } |
||||
}; |
||||
|
||||
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, |
||||
.query_formats = query_formats, |
||||
.activate = xfade_activate, |
||||
.uninit = uninit, |
||||
.inputs = xfade_inputs, |
||||
.outputs = xfade_outputs, |
||||
.flags = AVFILTER_FLAG_SLICE_THREADS, |
||||
}; |
||||
Loading…
Reference in new issue