mirror of
https://github.com/FFmpeg/FFmpeg.git
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676 lines
33 KiB
C
676 lines
33 KiB
C
/*
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* Copyright (c) 2013 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 "bufferqueue.h"
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#include "formats.h"
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#include "internal.h"
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#include "dualinput.h"
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#include "video.h"
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#include "blend.h"
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#define TOP 0
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#define BOTTOM 1
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typedef struct BlendContext {
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const AVClass *class;
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FFDualInputContext dinput;
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int hsub, vsub; ///< chroma subsampling values
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int nb_planes;
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char *all_expr;
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enum BlendMode all_mode;
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double all_opacity;
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FilterParams params[4];
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int tblend;
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AVFrame *prev_frame; /* only used with tblend */
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} BlendContext;
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static const char *const var_names[] = { "X", "Y", "W", "H", "SW", "SH", "T", "N", "A", "B", "TOP", "BOTTOM", NULL };
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enum { VAR_X, VAR_Y, VAR_W, VAR_H, VAR_SW, VAR_SH, VAR_T, VAR_N, VAR_A, VAR_B, VAR_TOP, VAR_BOTTOM, VAR_VARS_NB };
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typedef struct ThreadData {
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const AVFrame *top, *bottom;
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AVFrame *dst;
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AVFilterLink *inlink;
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int plane;
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int w, h;
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FilterParams *param;
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} ThreadData;
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#define COMMON_OPTIONS \
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{ "c0_mode", "set component #0 blend mode", OFFSET(params[0].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode"},\
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{ "c1_mode", "set component #1 blend mode", OFFSET(params[1].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode"},\
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{ "c2_mode", "set component #2 blend mode", OFFSET(params[2].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode"},\
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{ "c3_mode", "set component #3 blend mode", OFFSET(params[3].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode"},\
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{ "all_mode", "set blend mode for all components", OFFSET(all_mode), AV_OPT_TYPE_INT, {.i64=-1},-1, BLEND_NB-1, FLAGS, "mode"},\
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{ "addition", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_ADDITION}, 0, 0, FLAGS, "mode" },\
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{ "addition128", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_ADDITION128}, 0, 0, FLAGS, "mode" },\
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{ "and", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_AND}, 0, 0, FLAGS, "mode" },\
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{ "average", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_AVERAGE}, 0, 0, FLAGS, "mode" },\
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{ "burn", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_BURN}, 0, 0, FLAGS, "mode" },\
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{ "darken", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DARKEN}, 0, 0, FLAGS, "mode" },\
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{ "difference", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DIFFERENCE}, 0, 0, FLAGS, "mode" },\
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{ "difference128", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DIFFERENCE128}, 0, 0, FLAGS, "mode" },\
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{ "divide", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DIVIDE}, 0, 0, FLAGS, "mode" },\
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{ "dodge", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DODGE}, 0, 0, FLAGS, "mode" },\
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{ "exclusion", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_EXCLUSION}, 0, 0, FLAGS, "mode" },\
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{ "freeze", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_FREEZE}, 0, 0, FLAGS, "mode" },\
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{ "glow", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GLOW}, 0, 0, FLAGS, "mode" },\
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{ "hardlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HARDLIGHT}, 0, 0, FLAGS, "mode" },\
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{ "hardmix", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HARDMIX}, 0, 0, FLAGS, "mode" },\
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{ "heat", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HEAT}, 0, 0, FLAGS, "mode" },\
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{ "lighten", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_LIGHTEN}, 0, 0, FLAGS, "mode" },\
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{ "linearlight","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_LINEARLIGHT},0, 0, FLAGS, "mode" },\
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{ "multiply", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_MULTIPLY}, 0, 0, FLAGS, "mode" },\
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{ "multiply128","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_MULTIPLY128},0, 0, FLAGS, "mode" },\
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{ "negation", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_NEGATION}, 0, 0, FLAGS, "mode" },\
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{ "normal", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_NORMAL}, 0, 0, FLAGS, "mode" },\
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{ "or", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_OR}, 0, 0, FLAGS, "mode" },\
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{ "overlay", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_OVERLAY}, 0, 0, FLAGS, "mode" },\
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{ "phoenix", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_PHOENIX}, 0, 0, FLAGS, "mode" },\
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{ "pinlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_PINLIGHT}, 0, 0, FLAGS, "mode" },\
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{ "reflect", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_REFLECT}, 0, 0, FLAGS, "mode" },\
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{ "screen", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SCREEN}, 0, 0, FLAGS, "mode" },\
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{ "softlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SOFTLIGHT}, 0, 0, FLAGS, "mode" },\
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{ "subtract", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SUBTRACT}, 0, 0, FLAGS, "mode" },\
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{ "vividlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_VIVIDLIGHT}, 0, 0, FLAGS, "mode" },\
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{ "xor", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_XOR}, 0, 0, FLAGS, "mode" },\
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{ "c0_expr", "set color component #0 expression", OFFSET(params[0].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS },\
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{ "c1_expr", "set color component #1 expression", OFFSET(params[1].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS },\
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{ "c2_expr", "set color component #2 expression", OFFSET(params[2].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS },\
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{ "c3_expr", "set color component #3 expression", OFFSET(params[3].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS },\
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{ "all_expr", "set expression for all color components", OFFSET(all_expr), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS },\
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{ "c0_opacity", "set color component #0 opacity", OFFSET(params[0].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },\
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{ "c1_opacity", "set color component #1 opacity", OFFSET(params[1].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },\
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{ "c2_opacity", "set color component #2 opacity", OFFSET(params[2].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },\
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{ "c3_opacity", "set color component #3 opacity", OFFSET(params[3].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },\
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{ "all_opacity", "set opacity for all color components", OFFSET(all_opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}
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#define OFFSET(x) offsetof(BlendContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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static const AVOption blend_options[] = {
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COMMON_OPTIONS,
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{ "shortest", "force termination when the shortest input terminates", OFFSET(dinput.shortest), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
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{ "repeatlast", "repeat last bottom frame", OFFSET(dinput.repeatlast), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(blend);
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#define COPY(src) \
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static void blend_copy ## src(const uint8_t *top, ptrdiff_t top_linesize, \
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const uint8_t *bottom, ptrdiff_t bottom_linesize,\
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uint8_t *dst, ptrdiff_t dst_linesize, \
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ptrdiff_t width, ptrdiff_t height, \
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FilterParams *param, double *values, int starty) \
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{ \
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av_image_copy_plane(dst, dst_linesize, src, src ## _linesize, \
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width, height); \
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}
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COPY(top)
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COPY(bottom)
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#undef COPY
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static void blend_normal_8bit(const uint8_t *top, ptrdiff_t top_linesize,
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const uint8_t *bottom, ptrdiff_t bottom_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize,
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ptrdiff_t width, ptrdiff_t height,
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FilterParams *param, double *values, int starty)
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{
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const double opacity = param->opacity;
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int i, j;
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for (i = 0; i < height; i++) {
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for (j = 0; j < width; j++) {
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dst[j] = top[j] * opacity + bottom[j] * (1. - opacity);
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}
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dst += dst_linesize;
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top += top_linesize;
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bottom += bottom_linesize;
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}
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}
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static void blend_normal_16bit(const uint8_t *_top, ptrdiff_t top_linesize,
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const uint8_t *_bottom, ptrdiff_t bottom_linesize,
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uint8_t *_dst, ptrdiff_t dst_linesize,
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ptrdiff_t width, ptrdiff_t height,
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FilterParams *param, double *values, int starty)
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{
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const uint16_t *top = (uint16_t*)_top;
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const uint16_t *bottom = (uint16_t*)_bottom;
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uint16_t *dst = (uint16_t*)_dst;
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const double opacity = param->opacity;
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int i, j;
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dst_linesize /= 2;
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top_linesize /= 2;
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bottom_linesize /= 2;
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for (i = 0; i < height; i++) {
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for (j = 0; j < width; j++) {
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dst[j] = top[j] * opacity + bottom[j] * (1. - opacity);
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}
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dst += dst_linesize;
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top += top_linesize;
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bottom += bottom_linesize;
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}
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}
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#define DEFINE_BLEND8(name, expr) \
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static void blend_## name##_8bit(const uint8_t *top, ptrdiff_t top_linesize, \
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const uint8_t *bottom, ptrdiff_t bottom_linesize, \
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uint8_t *dst, ptrdiff_t dst_linesize, \
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ptrdiff_t width, ptrdiff_t height, \
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FilterParams *param, double *values, int starty) \
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{ \
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double opacity = param->opacity; \
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int i, j; \
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\
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for (i = 0; i < height; i++) { \
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for (j = 0; j < width; j++) { \
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dst[j] = top[j] + ((expr) - top[j]) * opacity; \
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} \
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dst += dst_linesize; \
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top += top_linesize; \
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bottom += bottom_linesize; \
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} \
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}
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#define DEFINE_BLEND16(name, expr) \
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static void blend_## name##_16bit(const uint8_t *_top, ptrdiff_t top_linesize, \
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const uint8_t *_bottom, ptrdiff_t bottom_linesize, \
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uint8_t *_dst, ptrdiff_t dst_linesize, \
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ptrdiff_t width, ptrdiff_t height, \
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FilterParams *param, double *values, int starty) \
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{ \
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const uint16_t *top = (uint16_t*)_top; \
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const uint16_t *bottom = (uint16_t*)_bottom; \
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uint16_t *dst = (uint16_t*)_dst; \
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double opacity = param->opacity; \
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int i, j; \
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dst_linesize /= 2; \
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top_linesize /= 2; \
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bottom_linesize /= 2; \
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\
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for (i = 0; i < height; i++) { \
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for (j = 0; j < width; j++) { \
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dst[j] = top[j] + ((expr) - top[j]) * opacity; \
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} \
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dst += dst_linesize; \
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top += top_linesize; \
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bottom += bottom_linesize; \
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} \
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}
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#define A top[j]
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#define B bottom[j]
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#define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 255))
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#define SCREEN(x, a, b) (255 - (x) * ((255 - (a)) * (255 - (b)) / 255))
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#define BURN(a, b) (((a) == 0) ? (a) : FFMAX(0, 255 - ((255 - (b)) << 8) / (a)))
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#define DODGE(a, b) (((a) == 255) ? (a) : FFMIN(255, (((b) << 8) / (255 - (a)))))
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DEFINE_BLEND8(addition, FFMIN(255, A + B))
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DEFINE_BLEND8(addition128, av_clip_uint8(A + B - 128))
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DEFINE_BLEND8(average, (A + B) / 2)
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DEFINE_BLEND8(subtract, FFMAX(0, A - B))
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DEFINE_BLEND8(multiply, MULTIPLY(1, A, B))
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DEFINE_BLEND8(multiply128,av_clip_uint8((A - 128) * B / 32. + 128))
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DEFINE_BLEND8(negation, 255 - FFABS(255 - A - B))
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DEFINE_BLEND8(difference, FFABS(A - B))
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DEFINE_BLEND8(difference128, av_clip_uint8(128 + A - B))
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DEFINE_BLEND8(screen, SCREEN(1, A, B))
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DEFINE_BLEND8(overlay, (A < 128) ? MULTIPLY(2, A, B) : SCREEN(2, A, B))
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DEFINE_BLEND8(hardlight, (B < 128) ? MULTIPLY(2, B, A) : SCREEN(2, B, A))
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DEFINE_BLEND8(hardmix, (A < (255 - B)) ? 0: 255)
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DEFINE_BLEND8(heat, (A == 0) ? 0 : 255 - FFMIN(((255 - B) * (255 - B)) / A, 255))
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DEFINE_BLEND8(freeze, (B == 0) ? 0 : 255 - FFMIN(((255 - A) * (255 - A)) / B, 255))
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DEFINE_BLEND8(darken, FFMIN(A, B))
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DEFINE_BLEND8(lighten, FFMAX(A, B))
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DEFINE_BLEND8(divide, av_clip_uint8(B == 0 ? 255 : 255 * A / B))
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DEFINE_BLEND8(dodge, DODGE(A, B))
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DEFINE_BLEND8(burn, BURN(A, B))
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DEFINE_BLEND8(softlight, (A > 127) ? B + (255 - B) * (A - 127.5) / 127.5 * (0.5 - fabs(B - 127.5) / 255): B - B * ((127.5 - A) / 127.5) * (0.5 - fabs(B - 127.5)/255))
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DEFINE_BLEND8(exclusion, A + B - 2 * A * B / 255)
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DEFINE_BLEND8(pinlight, (B < 128) ? FFMIN(A, 2 * B) : FFMAX(A, 2 * (B - 128)))
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DEFINE_BLEND8(phoenix, FFMIN(A, B) - FFMAX(A, B) + 255)
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DEFINE_BLEND8(reflect, (B == 255) ? B : FFMIN(255, (A * A / (255 - B))))
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DEFINE_BLEND8(glow, (A == 255) ? A : FFMIN(255, (B * B / (255 - A))))
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DEFINE_BLEND8(and, A & B)
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DEFINE_BLEND8(or, A | B)
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DEFINE_BLEND8(xor, A ^ B)
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DEFINE_BLEND8(vividlight, (A < 128) ? BURN(2 * A, B) : DODGE(2 * (A - 128), B))
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DEFINE_BLEND8(linearlight,av_clip_uint8((B < 128) ? B + 2 * A - 255 : B + 2 * (A - 128)))
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#undef MULTIPLY
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#undef SCREEN
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#undef BURN
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#undef DODGE
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#define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 65535))
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#define SCREEN(x, a, b) (65535 - (x) * ((65535 - (a)) * (65535 - (b)) / 65535))
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#define BURN(a, b) (((a) == 0) ? (a) : FFMAX(0, 65535 - ((65535 - (b)) << 16) / (a)))
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#define DODGE(a, b) (((a) == 65535) ? (a) : FFMIN(65535, (((b) << 16) / (65535 - (a)))))
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DEFINE_BLEND16(addition, FFMIN(65535, A + B))
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DEFINE_BLEND16(addition128, av_clip_uint16(A + B - 32768))
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DEFINE_BLEND16(average, (A + B) / 2)
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DEFINE_BLEND16(subtract, FFMAX(0, A - B))
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DEFINE_BLEND16(multiply, MULTIPLY(1, A, B))
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DEFINE_BLEND16(multiply128, av_clip_uint16((A - 32768) * B / 8192. + 32768))
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DEFINE_BLEND16(negation, 65535 - FFABS(65535 - A - B))
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DEFINE_BLEND16(difference, FFABS(A - B))
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DEFINE_BLEND16(difference128, av_clip_uint16(32768 + A - B))
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DEFINE_BLEND16(screen, SCREEN(1, A, B))
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DEFINE_BLEND16(overlay, (A < 32768) ? MULTIPLY(2, A, B) : SCREEN(2, A, B))
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DEFINE_BLEND16(hardlight, (B < 32768) ? MULTIPLY(2, B, A) : SCREEN(2, B, A))
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DEFINE_BLEND16(hardmix, (A < (65535 - B)) ? 0: 65535)
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DEFINE_BLEND16(heat, (A == 0) ? 0 : 65535 - FFMIN(((65535 - B) * (65535 - B)) / A, 65535))
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DEFINE_BLEND16(freeze, (B == 0) ? 0 : 65535 - FFMIN(((65535 - A) * (65535 - A)) / B, 65535))
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DEFINE_BLEND16(darken, FFMIN(A, B))
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DEFINE_BLEND16(lighten, FFMAX(A, B))
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DEFINE_BLEND16(divide, av_clip_uint16(B == 0 ? 65535 : 65535 * A / B))
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DEFINE_BLEND16(dodge, DODGE(A, B))
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DEFINE_BLEND16(burn, BURN(A, B))
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DEFINE_BLEND16(softlight, (A > 32767) ? B + (65535 - B) * (A - 32767.5) / 32767.5 * (0.5 - fabs(B - 32767.5) / 65535): B - B * ((32767.5 - A) / 32767.5) * (0.5 - fabs(B - 32767.5)/65535))
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DEFINE_BLEND16(exclusion, A + B - 2 * A * B / 65535)
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DEFINE_BLEND16(pinlight, (B < 32768) ? FFMIN(A, 2 * B) : FFMAX(A, 2 * (B - 32768)))
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DEFINE_BLEND16(phoenix, FFMIN(A, B) - FFMAX(A, B) + 65535)
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DEFINE_BLEND16(reflect, (B == 65535) ? B : FFMIN(65535, (A * A / (65535 - B))))
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DEFINE_BLEND16(glow, (A == 65535) ? A : FFMIN(65535, (B * B / (65535 - A))))
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DEFINE_BLEND16(and, A & B)
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DEFINE_BLEND16(or, A | B)
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DEFINE_BLEND16(xor, A ^ B)
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DEFINE_BLEND16(vividlight, (A < 32768) ? BURN(2 * A, B) : DODGE(2 * (A - 32768), B))
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DEFINE_BLEND16(linearlight,av_clip_uint16((B < 32768) ? B + 2 * A - 65535 : B + 2 * (A - 32768)))
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|
|
#define DEFINE_BLEND_EXPR(type, name, div) \
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static void blend_expr_## name(const uint8_t *_top, ptrdiff_t top_linesize, \
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const uint8_t *_bottom, ptrdiff_t bottom_linesize, \
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uint8_t *_dst, ptrdiff_t dst_linesize, \
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|
ptrdiff_t width, ptrdiff_t height, \
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FilterParams *param, double *values, int starty) \
|
|
{ \
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const type *top = (type*)_top; \
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const type *bottom = (type*)_bottom; \
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type *dst = (type*)_dst; \
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AVExpr *e = param->e; \
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int y, x; \
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dst_linesize /= div; \
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top_linesize /= div; \
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bottom_linesize /= div; \
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\
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for (y = 0; y < height; y++) { \
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values[VAR_Y] = y + starty; \
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for (x = 0; x < width; x++) { \
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values[VAR_X] = x; \
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values[VAR_TOP] = values[VAR_A] = top[x]; \
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values[VAR_BOTTOM] = values[VAR_B] = bottom[x]; \
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dst[x] = av_expr_eval(e, values, NULL); \
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} \
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dst += dst_linesize; \
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top += top_linesize; \
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bottom += bottom_linesize; \
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} \
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}
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DEFINE_BLEND_EXPR(uint8_t, 8bit, 1)
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DEFINE_BLEND_EXPR(uint16_t, 16bit, 2)
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static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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ThreadData *td = arg;
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int slice_start = (td->h * jobnr ) / nb_jobs;
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int slice_end = (td->h * (jobnr+1)) / nb_jobs;
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int height = slice_end - slice_start;
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const uint8_t *top = td->top->data[td->plane];
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const uint8_t *bottom = td->bottom->data[td->plane];
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uint8_t *dst = td->dst->data[td->plane];
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double values[VAR_VARS_NB];
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values[VAR_N] = td->inlink->frame_count_out;
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values[VAR_T] = td->dst->pts == AV_NOPTS_VALUE ? NAN : td->dst->pts * av_q2d(td->inlink->time_base);
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values[VAR_W] = td->w;
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values[VAR_H] = td->h;
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values[VAR_SW] = td->w / (double)td->dst->width;
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values[VAR_SH] = td->h / (double)td->dst->height;
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td->param->blend(top + slice_start * td->top->linesize[td->plane],
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td->top->linesize[td->plane],
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bottom + slice_start * td->bottom->linesize[td->plane],
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td->bottom->linesize[td->plane],
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dst + slice_start * td->dst->linesize[td->plane],
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td->dst->linesize[td->plane],
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td->w, height, td->param, &values[0], slice_start);
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return 0;
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}
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static AVFrame *blend_frame(AVFilterContext *ctx, AVFrame *top_buf,
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const AVFrame *bottom_buf)
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{
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BlendContext *s = ctx->priv;
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AVFilterLink *inlink = ctx->inputs[0];
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AVFilterLink *outlink = ctx->outputs[0];
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AVFrame *dst_buf;
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int plane;
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dst_buf = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!dst_buf)
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return top_buf;
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av_frame_copy_props(dst_buf, top_buf);
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for (plane = 0; plane < s->nb_planes; plane++) {
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int hsub = plane == 1 || plane == 2 ? s->hsub : 0;
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int vsub = plane == 1 || plane == 2 ? s->vsub : 0;
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int outw = AV_CEIL_RSHIFT(dst_buf->width, hsub);
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int outh = AV_CEIL_RSHIFT(dst_buf->height, vsub);
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FilterParams *param = &s->params[plane];
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ThreadData td = { .top = top_buf, .bottom = bottom_buf, .dst = dst_buf,
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.w = outw, .h = outh, .param = param, .plane = plane,
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.inlink = inlink };
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ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(outh, ff_filter_get_nb_threads(ctx)));
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}
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if (!s->tblend)
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av_frame_free(&top_buf);
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|
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return dst_buf;
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}
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|
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static av_cold int init(AVFilterContext *ctx)
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|
{
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|
BlendContext *s = ctx->priv;
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|
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s->tblend = !strcmp(ctx->filter->name, "tblend");
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s->dinput.process = blend_frame;
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|
return 0;
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}
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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, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P,
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AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ422P,AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ411P,
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AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
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AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, AV_PIX_FMT_GRAY8,
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AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
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AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, 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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|
|
|
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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|
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static av_cold void uninit(AVFilterContext *ctx)
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|
{
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|
BlendContext *s = ctx->priv;
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|
int i;
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|
|
|
ff_dualinput_uninit(&s->dinput);
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|
av_frame_free(&s->prev_frame);
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|
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|
for (i = 0; i < FF_ARRAY_ELEMS(s->params); i++)
|
|
av_expr_free(s->params[i].e);
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|
}
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void ff_blend_init(FilterParams *param, int is_16bit)
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|
{
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|
switch (param->mode) {
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|
case BLEND_ADDITION: param->blend = is_16bit ? blend_addition_16bit : blend_addition_8bit; break;
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case BLEND_ADDITION128: param->blend = is_16bit ? blend_addition128_16bit : blend_addition128_8bit; break;
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case BLEND_AND: param->blend = is_16bit ? blend_and_16bit : blend_and_8bit; break;
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case BLEND_AVERAGE: param->blend = is_16bit ? blend_average_16bit : blend_average_8bit; break;
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case BLEND_BURN: param->blend = is_16bit ? blend_burn_16bit : blend_burn_8bit; break;
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case BLEND_DARKEN: param->blend = is_16bit ? blend_darken_16bit : blend_darken_8bit; break;
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case BLEND_DIFFERENCE: param->blend = is_16bit ? blend_difference_16bit : blend_difference_8bit; break;
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case BLEND_DIFFERENCE128: param->blend = is_16bit ? blend_difference128_16bit: blend_difference128_8bit; break;
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case BLEND_DIVIDE: param->blend = is_16bit ? blend_divide_16bit : blend_divide_8bit; break;
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case BLEND_DODGE: param->blend = is_16bit ? blend_dodge_16bit : blend_dodge_8bit; break;
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|
case BLEND_EXCLUSION: param->blend = is_16bit ? blend_exclusion_16bit : blend_exclusion_8bit; break;
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|
case BLEND_FREEZE: param->blend = is_16bit ? blend_freeze_16bit : blend_freeze_8bit; break;
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|
case BLEND_GLOW: param->blend = is_16bit ? blend_glow_16bit : blend_glow_8bit; break;
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|
case BLEND_HARDLIGHT: param->blend = is_16bit ? blend_hardlight_16bit : blend_hardlight_8bit; break;
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|
case BLEND_HARDMIX: param->blend = is_16bit ? blend_hardmix_16bit : blend_hardmix_8bit; break;
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|
case BLEND_HEAT: param->blend = is_16bit ? blend_heat_16bit : blend_heat_8bit; break;
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|
case BLEND_LIGHTEN: param->blend = is_16bit ? blend_lighten_16bit : blend_lighten_8bit; break;
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|
case BLEND_LINEARLIGHT:param->blend = is_16bit ? blend_linearlight_16bit: blend_linearlight_8bit;break;
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|
case BLEND_MULTIPLY: param->blend = is_16bit ? blend_multiply_16bit : blend_multiply_8bit; break;
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|
case BLEND_MULTIPLY128:param->blend = is_16bit ? blend_multiply128_16bit: blend_multiply128_8bit;break;
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|
case BLEND_NEGATION: param->blend = is_16bit ? blend_negation_16bit : blend_negation_8bit; break;
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|
case BLEND_NORMAL: param->blend = param->opacity == 1 ? blend_copytop :
|
|
param->opacity == 0 ? blend_copybottom :
|
|
is_16bit ? blend_normal_16bit : blend_normal_8bit; break;
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|
case BLEND_OR: param->blend = is_16bit ? blend_or_16bit : blend_or_8bit; break;
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|
case BLEND_OVERLAY: param->blend = is_16bit ? blend_overlay_16bit : blend_overlay_8bit; break;
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|
case BLEND_PHOENIX: param->blend = is_16bit ? blend_phoenix_16bit : blend_phoenix_8bit; break;
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|
case BLEND_PINLIGHT: param->blend = is_16bit ? blend_pinlight_16bit : blend_pinlight_8bit; break;
|
|
case BLEND_REFLECT: param->blend = is_16bit ? blend_reflect_16bit : blend_reflect_8bit; break;
|
|
case BLEND_SCREEN: param->blend = is_16bit ? blend_screen_16bit : blend_screen_8bit; break;
|
|
case BLEND_SOFTLIGHT: param->blend = is_16bit ? blend_softlight_16bit : blend_softlight_8bit; break;
|
|
case BLEND_SUBTRACT: param->blend = is_16bit ? blend_subtract_16bit : blend_subtract_8bit; break;
|
|
case BLEND_VIVIDLIGHT: param->blend = is_16bit ? blend_vividlight_16bit : blend_vividlight_8bit; break;
|
|
case BLEND_XOR: param->blend = is_16bit ? blend_xor_16bit : blend_xor_8bit; break;
|
|
}
|
|
|
|
if (param->opacity == 0 && param->mode != BLEND_NORMAL) {
|
|
param->blend = blend_copytop;
|
|
}
|
|
|
|
if (ARCH_X86)
|
|
ff_blend_init_x86(param, is_16bit);
|
|
}
|
|
|
|
static int config_output(AVFilterLink *outlink)
|
|
{
|
|
AVFilterContext *ctx = outlink->src;
|
|
AVFilterLink *toplink = ctx->inputs[TOP];
|
|
BlendContext *s = ctx->priv;
|
|
const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(toplink->format);
|
|
int ret, plane, is_16bit;
|
|
|
|
if (!s->tblend) {
|
|
AVFilterLink *bottomlink = ctx->inputs[BOTTOM];
|
|
|
|
if (toplink->format != bottomlink->format) {
|
|
av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if (toplink->w != bottomlink->w ||
|
|
toplink->h != bottomlink->h ||
|
|
toplink->sample_aspect_ratio.num != bottomlink->sample_aspect_ratio.num ||
|
|
toplink->sample_aspect_ratio.den != bottomlink->sample_aspect_ratio.den) {
|
|
av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
|
|
"(size %dx%d, SAR %d:%d) do not match the corresponding "
|
|
"second input link %s parameters (%dx%d, SAR %d:%d)\n",
|
|
ctx->input_pads[TOP].name, toplink->w, toplink->h,
|
|
toplink->sample_aspect_ratio.num,
|
|
toplink->sample_aspect_ratio.den,
|
|
ctx->input_pads[BOTTOM].name, bottomlink->w, bottomlink->h,
|
|
bottomlink->sample_aspect_ratio.num,
|
|
bottomlink->sample_aspect_ratio.den);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
|
|
outlink->w = toplink->w;
|
|
outlink->h = toplink->h;
|
|
outlink->time_base = toplink->time_base;
|
|
outlink->sample_aspect_ratio = toplink->sample_aspect_ratio;
|
|
outlink->frame_rate = toplink->frame_rate;
|
|
|
|
s->hsub = pix_desc->log2_chroma_w;
|
|
s->vsub = pix_desc->log2_chroma_h;
|
|
|
|
is_16bit = pix_desc->comp[0].depth == 16;
|
|
s->nb_planes = av_pix_fmt_count_planes(toplink->format);
|
|
|
|
if (!s->tblend)
|
|
if ((ret = ff_dualinput_init(ctx, &s->dinput)) < 0)
|
|
return ret;
|
|
|
|
for (plane = 0; plane < FF_ARRAY_ELEMS(s->params); plane++) {
|
|
FilterParams *param = &s->params[plane];
|
|
|
|
if (s->all_mode >= 0)
|
|
param->mode = s->all_mode;
|
|
if (s->all_opacity < 1)
|
|
param->opacity = s->all_opacity;
|
|
|
|
ff_blend_init(param, is_16bit);
|
|
|
|
if (s->all_expr && !param->expr_str) {
|
|
param->expr_str = av_strdup(s->all_expr);
|
|
if (!param->expr_str)
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if (param->expr_str) {
|
|
ret = av_expr_parse(¶m->e, param->expr_str, var_names,
|
|
NULL, NULL, NULL, NULL, 0, ctx);
|
|
if (ret < 0)
|
|
return ret;
|
|
param->blend = is_16bit? blend_expr_16bit : blend_expr_8bit;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if CONFIG_BLEND_FILTER
|
|
|
|
static int request_frame(AVFilterLink *outlink)
|
|
{
|
|
BlendContext *s = outlink->src->priv;
|
|
return ff_dualinput_request_frame(&s->dinput, outlink);
|
|
}
|
|
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
|
|
{
|
|
BlendContext *s = inlink->dst->priv;
|
|
return ff_dualinput_filter_frame(&s->dinput, inlink, buf);
|
|
}
|
|
|
|
static const AVFilterPad blend_inputs[] = {
|
|
{
|
|
.name = "top",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.filter_frame = filter_frame,
|
|
},{
|
|
.name = "bottom",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.filter_frame = filter_frame,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVFilterPad blend_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_output,
|
|
.request_frame = request_frame,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
AVFilter ff_vf_blend = {
|
|
.name = "blend",
|
|
.description = NULL_IF_CONFIG_SMALL("Blend two video frames into each other."),
|
|
.init = init,
|
|
.uninit = uninit,
|
|
.priv_size = sizeof(BlendContext),
|
|
.query_formats = query_formats,
|
|
.inputs = blend_inputs,
|
|
.outputs = blend_outputs,
|
|
.priv_class = &blend_class,
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
|
|
};
|
|
|
|
#endif
|
|
|
|
#if CONFIG_TBLEND_FILTER
|
|
|
|
static int tblend_filter_frame(AVFilterLink *inlink, AVFrame *frame)
|
|
{
|
|
BlendContext *s = inlink->dst->priv;
|
|
AVFilterLink *outlink = inlink->dst->outputs[0];
|
|
|
|
if (s->prev_frame) {
|
|
AVFrame *out = blend_frame(inlink->dst, frame, s->prev_frame);
|
|
av_frame_free(&s->prev_frame);
|
|
s->prev_frame = frame;
|
|
return ff_filter_frame(outlink, out);
|
|
}
|
|
s->prev_frame = frame;
|
|
return 0;
|
|
}
|
|
|
|
static const AVOption tblend_options[] = {
|
|
COMMON_OPTIONS,
|
|
{ NULL }
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(tblend);
|
|
|
|
static const AVFilterPad tblend_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.filter_frame = tblend_filter_frame,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVFilterPad tblend_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_output,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
AVFilter ff_vf_tblend = {
|
|
.name = "tblend",
|
|
.description = NULL_IF_CONFIG_SMALL("Blend successive frames."),
|
|
.priv_size = sizeof(BlendContext),
|
|
.priv_class = &tblend_class,
|
|
.query_formats = query_formats,
|
|
.init = init,
|
|
.uninit = uninit,
|
|
.inputs = tblend_inputs,
|
|
.outputs = tblend_outputs,
|
|
.flags = AVFILTER_FLAG_SLICE_THREADS,
|
|
};
|
|
|
|
#endif
|