/* * Copyright (c) 2016 Paul B Mahol * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "config_components.h" #include "libavutil/attributes.h" #include "libavutil/common.h" #include "libavutil/eval.h" #include "libavutil/mem.h" #include "libavutil/opt.h" #include "libavutil/pixdesc.h" #include "avfilter.h" #include "formats.h" #include "internal.h" #include "video.h" #include "framesync.h" static const char *const var_names[] = { "w", ///< width of the input video "h", ///< height of the input video "x", ///< input value for the pixel from input #1 "y", ///< input value for the pixel from input #2 "bdx", ///< input #1 video bitdepth "bdy", ///< input #2 video bitdepth NULL }; enum var_name { VAR_W, VAR_H, VAR_X, VAR_Y, VAR_BITDEPTHX, VAR_BITDEPTHY, VAR_VARS_NB }; typedef struct LUT2Context { const AVClass *class; FFFrameSync fs; int odepth; char *comp_expr_str[4]; AVExpr *comp_expr[4]; double var_values[VAR_VARS_NB]; uint16_t *lut[4]; ///< lookup table for each component int width[4], height[4]; int widthx[4], heightx[4]; int widthy[4], heighty[4]; int nb_planesx; int nb_planesy; int nb_planes; int depth, depthx, depthy; int tlut2; AVFrame *prev_frame; /* only used with tlut2 */ int (*lut2)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); } LUT2Context; typedef struct ThreadData { AVFrame *out, *srcx, *srcy; } ThreadData; #define OFFSET(x) offsetof(LUT2Context, x) #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM #define TFLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM static const AVOption options[] = { { "c0", "set component #0 expression", OFFSET(comp_expr_str[0]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, { "c1", "set component #1 expression", OFFSET(comp_expr_str[1]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, { "c2", "set component #2 expression", OFFSET(comp_expr_str[2]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, { "c3", "set component #3 expression", OFFSET(comp_expr_str[3]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, { "d", "set output depth", OFFSET(odepth), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 16, .flags = FLAGS }, { NULL } }; static av_cold void uninit(AVFilterContext *ctx) { LUT2Context *s = ctx->priv; int i; ff_framesync_uninit(&s->fs); av_frame_free(&s->prev_frame); for (i = 0; i < 4; i++) { av_expr_free(s->comp_expr[i]); s->comp_expr[i] = NULL; av_freep(&s->comp_expr_str[i]); av_freep(&s->lut[i]); } } #define BIT8_FMTS \ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, \ AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, \ AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P, \ AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, \ AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, \ AV_PIX_FMT_GRAY8, AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, #define BIT9_FMTS \ AV_PIX_FMT_GBRP9, AV_PIX_FMT_GRAY9, \ AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, \ AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, #define BIT10_FMTS \ AV_PIX_FMT_GRAY10, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10, \ AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, \ AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, #define BIT12_FMTS \ AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, \ AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, \ AV_PIX_FMT_GRAY12, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRP12, #define BIT14_FMTS \ AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, \ AV_PIX_FMT_GRAY14, AV_PIX_FMT_GBRP14, #define BIT16_FMTS \ AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, \ AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, \ AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16, AV_PIX_FMT_GRAY16, static int query_formats(AVFilterContext *ctx) { LUT2Context *s = ctx->priv; static const enum AVPixelFormat all_pix_fmts[] = { BIT8_FMTS BIT9_FMTS BIT10_FMTS BIT12_FMTS AV_PIX_FMT_NONE }; static const enum AVPixelFormat bit8_pix_fmts[] = { BIT8_FMTS AV_PIX_FMT_NONE }; static const enum AVPixelFormat bit9_pix_fmts[] = { BIT9_FMTS AV_PIX_FMT_NONE }; static const enum AVPixelFormat bit10_pix_fmts[] = { BIT10_FMTS AV_PIX_FMT_NONE }; static const enum AVPixelFormat bit12_pix_fmts[] = { BIT12_FMTS AV_PIX_FMT_NONE }; static const enum AVPixelFormat bit14_pix_fmts[] = { BIT14_FMTS AV_PIX_FMT_NONE }; static const enum AVPixelFormat bit16_pix_fmts[] = { BIT16_FMTS AV_PIX_FMT_NONE }; const enum AVPixelFormat *pix_fmts; int ret; if (s->tlut2 || !s->odepth) return ff_set_common_formats_from_list(ctx, all_pix_fmts); ret = ff_formats_ref(ff_make_format_list(all_pix_fmts), &ctx->inputs[0]->outcfg.formats); if (ret < 0) return ret; switch (s->odepth) { case 8: pix_fmts = bit8_pix_fmts; break; case 9: pix_fmts = bit9_pix_fmts; break; case 10: pix_fmts = bit10_pix_fmts; break; case 12: pix_fmts = bit12_pix_fmts; break; case 14: pix_fmts = bit14_pix_fmts; break; case 16: pix_fmts = bit16_pix_fmts; break; default: av_log(ctx, AV_LOG_ERROR, "Unsupported output bit depth %d.\n", s->odepth); return AVERROR(EINVAL); } return ff_formats_ref(ff_make_format_list(pix_fmts), &ctx->outputs[0]->incfg.formats); } static int config_inputx(AVFilterLink *inlink) { AVFilterContext *ctx = inlink->dst; LUT2Context *s = ctx->priv; const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); int hsub = desc->log2_chroma_w; int vsub = desc->log2_chroma_h; s->nb_planesx = av_pix_fmt_count_planes(inlink->format); s->heightx[1] = s->heightx[2] = AV_CEIL_RSHIFT(inlink->h, vsub); s->heightx[0] = s->heightx[3] = inlink->h; s->widthx[1] = s->widthx[2] = AV_CEIL_RSHIFT(inlink->w, hsub); s->widthx[0] = s->widthx[3] = inlink->w; s->var_values[VAR_W] = inlink->w; s->var_values[VAR_H] = inlink->h; s->depthx = desc->comp[0].depth; s->var_values[VAR_BITDEPTHX] = s->depthx; if (s->tlut2) { s->depthy = desc->comp[0].depth; s->var_values[VAR_BITDEPTHY] = s->depthy; } return 0; } static int config_inputy(AVFilterLink *inlink) { AVFilterContext *ctx = inlink->dst; LUT2Context *s = ctx->priv; const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); int hsub = desc->log2_chroma_w; int vsub = desc->log2_chroma_h; s->nb_planesy = av_pix_fmt_count_planes(inlink->format); s->depthy = desc->comp[0].depth; s->var_values[VAR_BITDEPTHY] = s->depthy; s->heighty[1] = s->heighty[2] = AV_CEIL_RSHIFT(inlink->h, vsub); s->heighty[0] = s->heighty[3] = inlink->h; s->widthy[1] = s->widthy[2] = AV_CEIL_RSHIFT(inlink->w, hsub); s->widthy[0] = s->widthy[3] = inlink->w; return 0; } #define DEFINE_LUT2(zname, xname, yname, ztype, xtype, ytype, zdiv, xdiv, ydiv) \ static int lut2_##zname##_##xname##_##yname(AVFilterContext *ctx, \ void *arg, \ int jobnr, int nb_jobs) \ { \ LUT2Context *s = ctx->priv; \ ThreadData *td = arg; \ AVFrame *out = td->out; \ AVFrame *srcx = td->srcx; \ AVFrame *srcy = td->srcy; \ const int odepth = s->odepth; \ int p, y, x; \ \ for (p = 0; p < s->nb_planes; p++) { \ const int slice_start = (s->heightx[p] * jobnr) / nb_jobs; \ const int slice_end = (s->heightx[p] * (jobnr+1)) / nb_jobs; \ const uint16_t *lut = s->lut[p]; \ const xtype *srcxx; \ const ytype *srcyy; \ ztype *dst; \ \ dst = (ztype *)(out->data[p] + slice_start * out->linesize[p]); \ srcxx = (const xtype *)(srcx->data[p] + slice_start * srcx->linesize[p]);\ srcyy = (const ytype *)(srcy->data[p] + slice_start * srcy->linesize[p]);\ \ for (y = slice_start; y < slice_end; y++) { \ for (x = 0; x < s->widthx[p]; x++) { \ dst[x] = av_clip_uintp2_c(lut[(srcyy[x] << s->depthx) | srcxx[x]], odepth); \ } \ \ dst += out->linesize[p] / zdiv; \ srcxx += srcx->linesize[p] / xdiv; \ srcyy += srcy->linesize[p] / ydiv; \ } \ } \ return 0; \ } DEFINE_LUT2(8, 8, 8, uint8_t, uint8_t, uint8_t, 1, 1, 1) DEFINE_LUT2(8, 8, 16, uint8_t, uint8_t, uint16_t, 1, 1, 2) DEFINE_LUT2(8, 16, 8, uint8_t, uint16_t, uint8_t, 1, 2, 1) DEFINE_LUT2(8, 16, 16, uint8_t, uint16_t, uint16_t, 1, 2, 2) DEFINE_LUT2(16, 8, 8, uint16_t, uint8_t, uint8_t, 2, 1, 1) DEFINE_LUT2(16, 8, 16, uint16_t, uint8_t, uint16_t, 2, 1, 2) DEFINE_LUT2(16, 16, 8, uint16_t, uint16_t, uint8_t, 2, 2, 1) DEFINE_LUT2(16, 16, 16, uint16_t, uint16_t, uint16_t, 2, 2, 2) static int process_frame(FFFrameSync *fs) { AVFilterContext *ctx = fs->parent; LUT2Context *s = fs->opaque; AVFilterLink *outlink = ctx->outputs[0]; AVFrame *out, *srcx = NULL, *srcy = NULL; int ret; if ((ret = ff_framesync_get_frame(&s->fs, 0, &srcx, 0)) < 0 || (ret = ff_framesync_get_frame(&s->fs, 1, &srcy, 0)) < 0) return ret; if (ctx->is_disabled || !srcy) { out = av_frame_clone(srcx); if (!out) return AVERROR(ENOMEM); } else { ThreadData td; out = ff_get_video_buffer(outlink, outlink->w, outlink->h); if (!out) return AVERROR(ENOMEM); av_frame_copy_props(out, srcx); td.out = out; td.srcx = srcx; td.srcy = srcy; ff_filter_execute(ctx, s->lut2, &td, NULL, FFMIN(s->heightx[1], ff_filter_get_nb_threads(ctx))); } out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base); return ff_filter_frame(outlink, out); } static int config_output(AVFilterLink *outlink) { AVFilterContext *ctx = outlink->src; LUT2Context *s = ctx->priv; int p, ret; s->depth = s->depthx + s->depthy; s->nb_planes = s->nb_planesx; s->lut2 = s->depth > 16 ? lut2_16_16_16 : lut2_8_8_8; if (s->odepth) { if (s->depthx == 8 && s->depthy == 8 && s->odepth > 8) s->lut2 = lut2_16_8_8; if (s->depthx > 8 && s->depthy == 8 && s->odepth > 8) s->lut2 = lut2_16_16_8; if (s->depthx == 8 && s->depthy > 8 && s->odepth > 8) s->lut2 = lut2_16_8_16; if (s->depthx == 8 && s->depthy == 8 && s->odepth == 8) s->lut2 = lut2_8_8_8; if (s->depthx > 8 && s->depthy == 8 && s->odepth == 8) s->lut2 = lut2_8_16_8; if (s->depthx == 8 && s->depthy > 8 && s->odepth == 8) s->lut2 = lut2_8_8_16; if (s->depthx > 8 && s->depthy > 8 && s->odepth == 8) s->lut2 = lut2_8_16_16; } else { s->odepth = s->depthx; } for (p = 0; p < s->nb_planes; p++) { if (!s->lut[p]) s->lut[p] = av_malloc_array(1 << s->depth, sizeof(uint16_t)); if (!s->lut[p]) return AVERROR(ENOMEM); } for (p = 0; p < s->nb_planes; p++) { double res; int x, y; /* create the parsed expression */ av_expr_free(s->comp_expr[p]); s->comp_expr[p] = NULL; ret = av_expr_parse(&s->comp_expr[p], s->comp_expr_str[p], var_names, NULL, NULL, NULL, NULL, 0, ctx); if (ret < 0) { av_log(ctx, AV_LOG_ERROR, "Error when parsing the expression '%s' for the component %d.\n", s->comp_expr_str[p], p); return AVERROR(EINVAL); } /* compute the lut */ for (y = 0; y < (1 << s->depthy); y++) { s->var_values[VAR_Y] = y; for (x = 0; x < (1 << s->depthx); x++) { s->var_values[VAR_X] = x; res = av_expr_eval(s->comp_expr[p], s->var_values, s); if (isnan(res)) { av_log(ctx, AV_LOG_ERROR, "Error when evaluating the expression '%s' for the values %d and %d for the component %d.\n", s->comp_expr_str[p], x, y, p); return AVERROR(EINVAL); } s->lut[p][(y << s->depthx) + x] = res; } } } return 0; } static int lut2_config_output(AVFilterLink *outlink) { AVFilterContext *ctx = outlink->src; LUT2Context *s = ctx->priv; AVFilterLink *srcx = ctx->inputs[0]; AVFilterLink *srcy = ctx->inputs[1]; FFFrameSyncIn *in; const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format); int hsub = desc->log2_chroma_w; int vsub = desc->log2_chroma_h; int ret; outlink->w = srcx->w; outlink->h = srcx->h; outlink->time_base = srcx->time_base; outlink->sample_aspect_ratio = srcx->sample_aspect_ratio; outlink->frame_rate = srcx->frame_rate; s->nb_planes = av_pix_fmt_count_planes(outlink->format); s->height[1] = s->height[2] = AV_CEIL_RSHIFT(outlink->h, vsub); s->height[0] = s->height[3] = outlink->h; s->width[1] = s->width[2] = AV_CEIL_RSHIFT(outlink->w, hsub); s->width[0] = s->width[3] = outlink->w; if (!s->odepth && srcx->format != srcy->format) { av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n"); return AVERROR(EINVAL); } if (srcx->w != srcy->w || srcx->h != srcy->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, srcx->w, srcx->h, ctx->input_pads[1].name, srcy->w, srcy->h); return AVERROR(EINVAL); } if (s->nb_planesx != s->nb_planesy) { av_log(ctx, AV_LOG_ERROR, "First input link %s number of planes " "(%d) do not match the corresponding " "second input link %s number of planes (%d)\n", ctx->input_pads[0].name, s->nb_planesx, ctx->input_pads[1].name, s->nb_planesy); return AVERROR(EINVAL); } if (s->nb_planesx != s->nb_planes) { av_log(ctx, AV_LOG_ERROR, "First input link %s number of planes " "(%d) do not match the corresponding " "output link %s number of planes (%d)\n", ctx->input_pads[0].name, s->nb_planesx, ctx->output_pads[0].name, s->nb_planes); return AVERROR(EINVAL); } if (s->widthx[1] != s->widthy[1] || s->heightx[1] != s->heighty[1]) { av_log(ctx, AV_LOG_ERROR, "First input link %s 2nd plane " "(size %dx%d) do not match the corresponding " "second input link %s 2nd plane (size %dx%d)\n", ctx->input_pads[0].name, s->widthx[1], s->heightx[1], ctx->input_pads[1].name, s->widthy[1], s->heighty[1]); return AVERROR(EINVAL); } if (s->widthx[2] != s->widthy[2] || s->heightx[2] != s->heighty[2]) { av_log(ctx, AV_LOG_ERROR, "First input link %s 3rd plane " "(size %dx%d) do not match the corresponding " "second input link %s 3rd plane (size %dx%d)\n", ctx->input_pads[0].name, s->widthx[2], s->heightx[2], ctx->input_pads[1].name, s->widthy[2], s->heighty[2]); return AVERROR(EINVAL); } if (s->widthx[1] != s->width[1] || s->heightx[1] != s->height[1]) { av_log(ctx, AV_LOG_ERROR, "First input link %s 2nd plane " "(size %dx%d) do not match the corresponding " "output link %s 2nd plane (size %dx%d)\n", ctx->input_pads[0].name, s->widthx[1], s->heightx[1], ctx->output_pads[0].name, s->width[1], s->height[1]); return AVERROR(EINVAL); } if (s->widthx[2] != s->width[2] || s->heightx[2] != s->height[2]) { av_log(ctx, AV_LOG_ERROR, "First input link %s 3rd plane " "(size %dx%d) do not match the corresponding " "output link %s 3rd plane (size %dx%d)\n", ctx->input_pads[0].name, s->widthx[2], s->heightx[2], ctx->output_pads[0].name, s->width[2], s->height[2]); return AVERROR(EINVAL); } if ((ret = ff_framesync_init(&s->fs, ctx, 2)) < 0) return ret; in = s->fs.in; in[0].time_base = srcx->time_base; in[1].time_base = srcy->time_base; in[0].sync = 2; in[0].before = EXT_STOP; in[0].after = EXT_INFINITY; in[1].sync = 1; in[1].before = EXT_STOP; in[1].after = EXT_INFINITY; s->fs.opaque = s; s->fs.on_event = process_frame; if ((ret = config_output(outlink)) < 0) return ret; ret = ff_framesync_configure(&s->fs); outlink->time_base = s->fs.time_base; return ret; } static int activate(AVFilterContext *ctx) { LUT2Context *s = ctx->priv; return ff_framesync_activate(&s->fs); } static const AVFilterPad inputs[] = { { .name = "srcx", .type = AVMEDIA_TYPE_VIDEO, .config_props = config_inputx, }, { .name = "srcy", .type = AVMEDIA_TYPE_VIDEO, .config_props = config_inputy, }, }; static const AVFilterPad outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .config_props = lut2_config_output, }, }; static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags) { int ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags); if (ret < 0) return ret; return config_output(ctx->outputs[0]); } #define lut2_options options FRAMESYNC_DEFINE_CLASS(lut2, LUT2Context, fs); const AVFilter ff_vf_lut2 = { .name = "lut2", .description = NULL_IF_CONFIG_SMALL("Compute and apply a lookup table from two video inputs."), .preinit = lut2_framesync_preinit, .priv_size = sizeof(LUT2Context), .priv_class = &lut2_class, .uninit = uninit, .activate = activate, FILTER_INPUTS(inputs), FILTER_OUTPUTS(outputs), FILTER_QUERY_FUNC(query_formats), .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, .process_command = process_command, }; #if CONFIG_TLUT2_FILTER static av_cold int init(AVFilterContext *ctx) { LUT2Context *s = ctx->priv; s->tlut2 = !strcmp(ctx->filter->name, "tlut2"); return 0; } static int tlut2_filter_frame(AVFilterLink *inlink, AVFrame *frame) { AVFilterContext *ctx = inlink->dst; LUT2Context *s = ctx->priv; AVFilterLink *outlink = ctx->outputs[0]; if (s->prev_frame) { AVFrame *out; if (ctx->is_disabled) { out = av_frame_clone(frame); } else { ThreadData td; out = ff_get_video_buffer(outlink, outlink->w, outlink->h); if (!out) { av_frame_free(&s->prev_frame); s->prev_frame = frame; return AVERROR(ENOMEM); } av_frame_copy_props(out, frame); td.out = out; td.srcx = frame; td.srcy = s->prev_frame; ff_filter_execute(ctx, s->lut2, &td, NULL, FFMIN(s->heightx[1], ff_filter_get_nb_threads(ctx))); } 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 tlut2_options[] = { { "c0", "set component #0 expression", OFFSET(comp_expr_str[0]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, { "c1", "set component #1 expression", OFFSET(comp_expr_str[1]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, { "c2", "set component #2 expression", OFFSET(comp_expr_str[2]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, { "c3", "set component #3 expression", OFFSET(comp_expr_str[3]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, { NULL } }; AVFILTER_DEFINE_CLASS(tlut2); static const AVFilterPad tlut2_inputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .filter_frame = tlut2_filter_frame, .config_props = config_inputx, }, }; static const AVFilterPad tlut2_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .config_props = config_output, }, }; const AVFilter ff_vf_tlut2 = { .name = "tlut2", .description = NULL_IF_CONFIG_SMALL("Compute and apply a lookup table from two successive frames."), .priv_size = sizeof(LUT2Context), .priv_class = &tlut2_class, .init = init, .uninit = uninit, FILTER_INPUTS(tlut2_inputs), FILTER_OUTPUTS(tlut2_outputs), FILTER_QUERY_FUNC(query_formats), .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, .process_command = process_command, }; #endif