| /* |
| * Copyright (C) 2006 Michael Niedermayer <michaelni@gmx.at> |
| * Copyright (C) 2012 Clément Bœsch <u pkh me> |
| * |
| * 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 |
| */ |
| |
| /** |
| * @file |
| * Generic equation change filter |
| * Originally written by Michael Niedermayer for the MPlayer project, and |
| * ported by Clément Bœsch for FFmpeg. |
| */ |
| |
| #include "libavutil/avassert.h" |
| #include "libavutil/avstring.h" |
| #include "libavutil/eval.h" |
| #include "libavutil/opt.h" |
| #include "libavutil/pixdesc.h" |
| #include "internal.h" |
| |
| #define MAX_NB_THREADS 32 |
| #define NB_PLANES 4 |
| |
| enum InterpolationMethods { |
| INTERP_NEAREST, |
| INTERP_BILINEAR, |
| NB_INTERP |
| }; |
| |
| static const char *const var_names[] = { "X", "Y", "W", "H", "N", "SW", "SH", "T", NULL }; |
| enum { VAR_X, VAR_Y, VAR_W, VAR_H, VAR_N, VAR_SW, VAR_SH, VAR_T, VAR_VARS_NB }; |
| |
| typedef struct GEQContext { |
| const AVClass *class; |
| AVExpr *e[NB_PLANES][MAX_NB_THREADS]; ///< expressions for each plane and thread |
| char *expr_str[4+3]; ///< expression strings for each plane |
| AVFrame *picref; ///< current input buffer |
| uint8_t *dst; ///< reference pointer to the 8bits output |
| uint16_t *dst16; ///< reference pointer to the 16bits output |
| double values[VAR_VARS_NB]; ///< expression values |
| int hsub, vsub; ///< chroma subsampling |
| int planes; ///< number of planes |
| int interpolation; |
| int is_rgb; |
| int bps; |
| |
| double *pixel_sums[NB_PLANES]; |
| int needs_sum[NB_PLANES]; |
| } GEQContext; |
| |
| enum { Y = 0, U, V, A, G, B, R }; |
| |
| #define OFFSET(x) offsetof(GEQContext, x) |
| #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM |
| |
| static const AVOption geq_options[] = { |
| { "lum_expr", "set luminance expression", OFFSET(expr_str[Y]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "lum", "set luminance expression", OFFSET(expr_str[Y]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "cb_expr", "set chroma blue expression", OFFSET(expr_str[U]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "cb", "set chroma blue expression", OFFSET(expr_str[U]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "cr_expr", "set chroma red expression", OFFSET(expr_str[V]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "cr", "set chroma red expression", OFFSET(expr_str[V]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "alpha_expr", "set alpha expression", OFFSET(expr_str[A]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "a", "set alpha expression", OFFSET(expr_str[A]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "red_expr", "set red expression", OFFSET(expr_str[R]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "r", "set red expression", OFFSET(expr_str[R]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "green_expr", "set green expression", OFFSET(expr_str[G]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "g", "set green expression", OFFSET(expr_str[G]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "blue_expr", "set blue expression", OFFSET(expr_str[B]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "b", "set blue expression", OFFSET(expr_str[B]), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, |
| { "interpolation","set interpolation method", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERP_BILINEAR}, 0, NB_INTERP-1, FLAGS, "interp" }, |
| { "i", "set interpolation method", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERP_BILINEAR}, 0, NB_INTERP-1, FLAGS, "interp" }, |
| { "nearest", "nearest interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERP_NEAREST}, 0, 0, FLAGS, "interp" }, |
| { "n", "nearest interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERP_NEAREST}, 0, 0, FLAGS, "interp" }, |
| { "bilinear", "bilinear interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERP_BILINEAR}, 0, 0, FLAGS, "interp" }, |
| { "b", "bilinear interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERP_BILINEAR}, 0, 0, FLAGS, "interp" }, |
| {NULL}, |
| }; |
| |
| AVFILTER_DEFINE_CLASS(geq); |
| |
| static inline double getpix(void *priv, double x, double y, int plane) |
| { |
| int xi, yi; |
| GEQContext *geq = priv; |
| AVFrame *picref = geq->picref; |
| const uint8_t *src = picref->data[plane]; |
| int linesize = picref->linesize[plane]; |
| const int w = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->width, geq->hsub) : picref->width; |
| const int h = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->height, geq->vsub) : picref->height; |
| |
| if (!src) |
| return 0; |
| |
| if (geq->interpolation == INTERP_BILINEAR) { |
| xi = x = av_clipd(x, 0, w - 2); |
| yi = y = av_clipd(y, 0, h - 2); |
| |
| x -= xi; |
| y -= yi; |
| |
| if (geq->bps > 8) { |
| const uint16_t *src16 = (const uint16_t*)src; |
| linesize /= 2; |
| |
| return (1-y)*((1-x)*src16[xi + yi * linesize] + x*src16[xi + 1 + yi * linesize]) |
| + y *((1-x)*src16[xi + (yi+1) * linesize] + x*src16[xi + 1 + (yi+1) * linesize]); |
| } else { |
| return (1-y)*((1-x)*src[xi + yi * linesize] + x*src[xi + 1 + yi * linesize]) |
| + y *((1-x)*src[xi + (yi+1) * linesize] + x*src[xi + 1 + (yi+1) * linesize]); |
| } |
| } else { |
| xi = av_clipd(x, 0, w - 1); |
| yi = av_clipd(y, 0, h - 1); |
| |
| if (geq->bps > 8) { |
| const uint16_t *src16 = (const uint16_t*)src; |
| linesize /= 2; |
| |
| return src16[xi + yi * linesize]; |
| } else { |
| return src[xi + yi * linesize]; |
| } |
| } |
| } |
| |
| static int calculate_sums(GEQContext *geq, int plane, int w, int h) |
| { |
| int xi, yi; |
| AVFrame *picref = geq->picref; |
| const uint8_t *src = picref->data[plane]; |
| int linesize = picref->linesize[plane]; |
| |
| if (!geq->pixel_sums[plane]) |
| geq->pixel_sums[plane] = av_malloc_array(w, h * sizeof (*geq->pixel_sums[plane])); |
| if (!geq->pixel_sums[plane]) |
| return AVERROR(ENOMEM); |
| if (geq->bps > 8) |
| linesize /= 2; |
| for (yi = 0; yi < h; yi ++) { |
| if (geq->bps > 8) { |
| const uint16_t *src16 = (const uint16_t*)src; |
| double linesum = 0; |
| |
| for (xi = 0; xi < w; xi ++) { |
| linesum += src16[xi + yi * linesize]; |
| geq->pixel_sums[plane][xi + yi * w] = linesum; |
| } |
| } else { |
| double linesum = 0; |
| |
| for (xi = 0; xi < w; xi ++) { |
| linesum += src[xi + yi * linesize]; |
| geq->pixel_sums[plane][xi + yi * w] = linesum; |
| } |
| } |
| if (yi) |
| for (xi = 0; xi < w; xi ++) { |
| geq->pixel_sums[plane][xi + yi * w] += geq->pixel_sums[plane][xi + yi * w - w]; |
| } |
| } |
| return 0; |
| } |
| |
| static inline double getpix_integrate_internal(GEQContext *geq, int x, int y, int plane, int w, int h) |
| { |
| if (x > w - 1) { |
| double boundary = getpix_integrate_internal(geq, w - 1, y, plane, w, h); |
| return 2*boundary - getpix_integrate_internal(geq, 2*(w - 1) - x, y, plane, w, h); |
| } else if (y > h - 1) { |
| double boundary = getpix_integrate_internal(geq, x, h - 1, plane, w, h); |
| return 2*boundary - getpix_integrate_internal(geq, x, 2*(h - 1) - y, plane, w, h); |
| } else if (x < 0) { |
| if (x == -1) return 0; |
| return - getpix_integrate_internal(geq, -x-2, y, plane, w, h); |
| } else if (y < 0) { |
| if (y == -1) return 0; |
| return - getpix_integrate_internal(geq, x, -y-2, plane, w, h); |
| } |
| |
| return geq->pixel_sums[plane][x + y * w]; |
| } |
| |
| static inline double getpix_integrate(void *priv, double x, double y, int plane) { |
| GEQContext *geq = priv; |
| AVFrame *picref = geq->picref; |
| const uint8_t *src = picref->data[plane]; |
| const int w = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->width, geq->hsub) : picref->width; |
| const int h = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(picref->height, geq->vsub) : picref->height; |
| |
| if (!src) |
| return 0; |
| |
| return getpix_integrate_internal(geq, lrint(av_clipd(x, -w, 2*w)), lrint(av_clipd(y, -h, 2*h)), plane, w, h); |
| } |
| |
| //TODO: cubic interpolate |
| //TODO: keep the last few frames |
| static double lum(void *priv, double x, double y) { return getpix(priv, x, y, 0); } |
| static double cb(void *priv, double x, double y) { return getpix(priv, x, y, 1); } |
| static double cr(void *priv, double x, double y) { return getpix(priv, x, y, 2); } |
| static double alpha(void *priv, double x, double y) { return getpix(priv, x, y, 3); } |
| |
| static double lumsum(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 0); } |
| static double cbsum(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 1); } |
| static double crsub(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 2); } |
| static double alphasum(void *priv, double x, double y) { return getpix_integrate(priv, x, y, 3); } |
| |
| static av_cold int geq_init(AVFilterContext *ctx) |
| { |
| GEQContext *geq = ctx->priv; |
| int plane, ret = 0; |
| |
| if (!geq->expr_str[Y] && !geq->expr_str[G] && !geq->expr_str[B] && !geq->expr_str[R]) { |
| av_log(ctx, AV_LOG_ERROR, "A luminance or RGB expression is mandatory\n"); |
| ret = AVERROR(EINVAL); |
| goto end; |
| } |
| geq->is_rgb = !geq->expr_str[Y]; |
| |
| if ((geq->expr_str[Y] || geq->expr_str[U] || geq->expr_str[V]) && (geq->expr_str[G] || geq->expr_str[B] || geq->expr_str[R])) { |
| av_log(ctx, AV_LOG_ERROR, "Either YCbCr or RGB but not both must be specified\n"); |
| ret = AVERROR(EINVAL); |
| goto end; |
| } |
| |
| if (!geq->expr_str[U] && !geq->expr_str[V]) { |
| /* No chroma at all: fallback on luma */ |
| geq->expr_str[U] = av_strdup(geq->expr_str[Y]); |
| geq->expr_str[V] = av_strdup(geq->expr_str[Y]); |
| } else { |
| /* One chroma unspecified, fallback on the other */ |
| if (!geq->expr_str[U]) geq->expr_str[U] = av_strdup(geq->expr_str[V]); |
| if (!geq->expr_str[V]) geq->expr_str[V] = av_strdup(geq->expr_str[U]); |
| } |
| |
| if (!geq->expr_str[A]) { |
| char bps_string[8]; |
| snprintf(bps_string, sizeof(bps_string), "%d", (1<<geq->bps) - 1); |
| geq->expr_str[A] = av_strdup(bps_string); |
| } |
| if (!geq->expr_str[G]) |
| geq->expr_str[G] = av_strdup("g(X,Y)"); |
| if (!geq->expr_str[B]) |
| geq->expr_str[B] = av_strdup("b(X,Y)"); |
| if (!geq->expr_str[R]) |
| geq->expr_str[R] = av_strdup("r(X,Y)"); |
| |
| if (geq->is_rgb ? |
| (!geq->expr_str[G] || !geq->expr_str[B] || !geq->expr_str[R]) |
| : |
| (!geq->expr_str[U] || !geq->expr_str[V] || !geq->expr_str[A])) { |
| ret = AVERROR(ENOMEM); |
| goto end; |
| } |
| |
| for (plane = 0; plane < NB_PLANES; plane++) { |
| static double (*p[])(void *, double, double) = { |
| lum , cb , cr , alpha , |
| lumsum, cbsum, crsub, alphasum, |
| }; |
| static const char *const func2_yuv_names[] = { |
| "lum" , "cb" , "cr" , "alpha" , "p", |
| "lumsum", "cbsum", "crsum", "alphasum", "psum", |
| NULL }; |
| static const char *const func2_rgb_names[] = { |
| "g" , "b" , "r" , "alpha" , "p", |
| "gsum", "bsum", "rsum", "alphasum", "psum", |
| NULL }; |
| const char *const *func2_names = geq->is_rgb ? func2_rgb_names : func2_yuv_names; |
| double (*func2[])(void *, double, double) = { |
| lum , cb , cr , alpha , p[plane], |
| lumsum, cbsum, crsub, alphasum, p[plane + 4], |
| NULL }; |
| int counter[10] = {0}; |
| |
| for (int i = 0; i < MAX_NB_THREADS; i++) { |
| ret = av_expr_parse(&geq->e[plane][i], geq->expr_str[plane < 3 && geq->is_rgb ? plane+4 : plane], var_names, |
| NULL, NULL, func2_names, func2, 0, ctx); |
| if (ret < 0) |
| goto end; |
| } |
| |
| av_expr_count_func(geq->e[plane][0], counter, FF_ARRAY_ELEMS(counter), 2); |
| geq->needs_sum[plane] = counter[5] + counter[6] + counter[7] + counter[8] + counter[9]; |
| } |
| |
| end: |
| return ret; |
| } |
| |
| static int geq_query_formats(AVFilterContext *ctx) |
| { |
| GEQContext *geq = ctx->priv; |
| static const enum AVPixelFormat yuv_pix_fmts[] = { |
| AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, |
| AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P, |
| AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P, |
| AV_PIX_FMT_GRAY8, |
| AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV420P9, |
| AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA420P9, |
| AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV420P10, |
| AV_PIX_FMT_YUV440P10, |
| AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA420P10, |
| AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, |
| AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12, |
| AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, |
| AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14, |
| AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV420P16, |
| AV_PIX_FMT_YUVA444P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA420P16, |
| AV_PIX_FMT_GRAY16, |
| AV_PIX_FMT_NONE |
| }; |
| static const enum AVPixelFormat rgb_pix_fmts[] = { |
| AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, |
| AV_PIX_FMT_GBRP9, |
| AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10, |
| AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12, |
| AV_PIX_FMT_GBRP14, |
| AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16, |
| AV_PIX_FMT_NONE |
| }; |
| AVFilterFormats *fmts_list; |
| |
| if (geq->is_rgb) { |
| fmts_list = ff_make_format_list(rgb_pix_fmts); |
| } else |
| fmts_list = ff_make_format_list(yuv_pix_fmts); |
| if (!fmts_list) |
| return AVERROR(ENOMEM); |
| return ff_set_common_formats(ctx, fmts_list); |
| } |
| |
| static int geq_config_props(AVFilterLink *inlink) |
| { |
| GEQContext *geq = inlink->dst->priv; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| |
| av_assert0(desc); |
| |
| geq->hsub = desc->log2_chroma_w; |
| geq->vsub = desc->log2_chroma_h; |
| geq->bps = desc->comp[0].depth; |
| geq->planes = desc->nb_components; |
| return 0; |
| } |
| |
| typedef struct ThreadData { |
| int height; |
| int width; |
| int plane; |
| int linesize; |
| } ThreadData; |
| |
| static int slice_geq_filter(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| GEQContext *geq = ctx->priv; |
| ThreadData *td = arg; |
| const int height = td->height; |
| const int width = td->width; |
| const int plane = td->plane; |
| const int linesize = td->linesize; |
| const int slice_start = (height * jobnr) / nb_jobs; |
| const int slice_end = (height * (jobnr+1)) / nb_jobs; |
| int x, y; |
| |
| double values[VAR_VARS_NB]; |
| values[VAR_W] = geq->values[VAR_W]; |
| values[VAR_H] = geq->values[VAR_H]; |
| values[VAR_N] = geq->values[VAR_N]; |
| values[VAR_SW] = geq->values[VAR_SW]; |
| values[VAR_SH] = geq->values[VAR_SH]; |
| values[VAR_T] = geq->values[VAR_T]; |
| |
| if (geq->bps == 8) { |
| uint8_t *ptr = geq->dst + linesize * slice_start; |
| for (y = slice_start; y < slice_end; y++) { |
| values[VAR_Y] = y; |
| |
| for (x = 0; x < width; x++) { |
| values[VAR_X] = x; |
| ptr[x] = av_expr_eval(geq->e[plane][jobnr], values, geq); |
| } |
| ptr += linesize; |
| } |
| } else { |
| uint16_t *ptr16 = geq->dst16 + (linesize/2) * slice_start; |
| for (y = slice_start; y < slice_end; y++) { |
| values[VAR_Y] = y; |
| for (x = 0; x < width; x++) { |
| values[VAR_X] = x; |
| ptr16[x] = av_expr_eval(geq->e[plane][jobnr], values, geq); |
| } |
| ptr16 += linesize/2; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int geq_filter_frame(AVFilterLink *inlink, AVFrame *in) |
| { |
| int plane; |
| AVFilterContext *ctx = inlink->dst; |
| const int nb_threads = FFMIN(MAX_NB_THREADS, ff_filter_get_nb_threads(ctx)); |
| GEQContext *geq = ctx->priv; |
| AVFilterLink *outlink = inlink->dst->outputs[0]; |
| AVFrame *out; |
| |
| geq->values[VAR_N] = inlink->frame_count_out, |
| geq->values[VAR_T] = in->pts == AV_NOPTS_VALUE ? NAN : in->pts * av_q2d(inlink->time_base), |
| |
| geq->picref = in; |
| out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
| if (!out) { |
| av_frame_free(&in); |
| return AVERROR(ENOMEM); |
| } |
| av_frame_copy_props(out, in); |
| |
| for (plane = 0; plane < geq->planes && out->data[plane]; plane++) { |
| const int width = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(inlink->w, geq->hsub) : inlink->w; |
| const int height = (plane == 1 || plane == 2) ? AV_CEIL_RSHIFT(inlink->h, geq->vsub) : inlink->h; |
| const int linesize = out->linesize[plane]; |
| ThreadData td; |
| |
| geq->dst = out->data[plane]; |
| geq->dst16 = (uint16_t*)out->data[plane]; |
| |
| geq->values[VAR_W] = width; |
| geq->values[VAR_H] = height; |
| geq->values[VAR_SW] = width / (double)inlink->w; |
| geq->values[VAR_SH] = height / (double)inlink->h; |
| |
| td.width = width; |
| td.height = height; |
| td.plane = plane; |
| td.linesize = linesize; |
| |
| if (geq->needs_sum[plane]) |
| calculate_sums(geq, plane, width, height); |
| |
| ctx->internal->execute(ctx, slice_geq_filter, &td, NULL, FFMIN(height, nb_threads)); |
| } |
| |
| av_frame_free(&geq->picref); |
| return ff_filter_frame(outlink, out); |
| } |
| |
| static av_cold void geq_uninit(AVFilterContext *ctx) |
| { |
| int i; |
| GEQContext *geq = ctx->priv; |
| |
| for (i = 0; i < NB_PLANES; i++) |
| for (int j = 0; j < MAX_NB_THREADS; j++) |
| av_expr_free(geq->e[i][j]); |
| for (i = 0; i < NB_PLANES; i++) |
| av_freep(&geq->pixel_sums); |
| } |
| |
| static const AVFilterPad geq_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = geq_config_props, |
| .filter_frame = geq_filter_frame, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad geq_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter ff_vf_geq = { |
| .name = "geq", |
| .description = NULL_IF_CONFIG_SMALL("Apply generic equation to each pixel."), |
| .priv_size = sizeof(GEQContext), |
| .init = geq_init, |
| .uninit = geq_uninit, |
| .query_formats = geq_query_formats, |
| .inputs = geq_inputs, |
| .outputs = geq_outputs, |
| .priv_class = &geq_class, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, |
| }; |
