LCOV - code coverage report
Current view: top level - libavfilter - vf_lut.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 162 203 79.8 %
Date: 2017-12-12 11:08:38 Functions: 6 11 54.5 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2011 Stefano Sabatini
       3             :  *
       4             :  * This file is part of FFmpeg.
       5             :  *
       6             :  * FFmpeg is free software; you can redistribute it and/or
       7             :  * modify it under the terms of the GNU Lesser General Public
       8             :  * License as published by the Free Software Foundation; either
       9             :  * version 2.1 of the License, or (at your option) any later version.
      10             :  *
      11             :  * FFmpeg is distributed in the hope that it will be useful,
      12             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             :  * Lesser General Public License for more details.
      15             :  *
      16             :  * You should have received a copy of the GNU Lesser General Public
      17             :  * License along with FFmpeg; if not, write to the Free Software
      18             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      19             :  */
      20             : 
      21             : /**
      22             :  * @file
      23             :  * Compute a look-up table for binding the input value to the output
      24             :  * value, and apply it to input video.
      25             :  */
      26             : 
      27             : #include "libavutil/attributes.h"
      28             : #include "libavutil/bswap.h"
      29             : #include "libavutil/common.h"
      30             : #include "libavutil/eval.h"
      31             : #include "libavutil/opt.h"
      32             : #include "libavutil/pixdesc.h"
      33             : #include "avfilter.h"
      34             : #include "drawutils.h"
      35             : #include "formats.h"
      36             : #include "internal.h"
      37             : #include "video.h"
      38             : 
      39             : static const char *const var_names[] = {
      40             :     "w",        ///< width of the input video
      41             :     "h",        ///< height of the input video
      42             :     "val",      ///< input value for the pixel
      43             :     "maxval",   ///< max value for the pixel
      44             :     "minval",   ///< min value for the pixel
      45             :     "negval",   ///< negated value
      46             :     "clipval",
      47             :     NULL
      48             : };
      49             : 
      50             : enum var_name {
      51             :     VAR_W,
      52             :     VAR_H,
      53             :     VAR_VAL,
      54             :     VAR_MAXVAL,
      55             :     VAR_MINVAL,
      56             :     VAR_NEGVAL,
      57             :     VAR_CLIPVAL,
      58             :     VAR_VARS_NB
      59             : };
      60             : 
      61             : typedef struct LutContext {
      62             :     const AVClass *class;
      63             :     uint16_t lut[4][256 * 256];  ///< lookup table for each component
      64             :     char   *comp_expr_str[4];
      65             :     AVExpr *comp_expr[4];
      66             :     int hsub, vsub;
      67             :     double var_values[VAR_VARS_NB];
      68             :     int is_rgb, is_yuv;
      69             :     int is_planar;
      70             :     int is_16bit;
      71             :     int step;
      72             :     int negate_alpha; /* only used by negate */
      73             : } LutContext;
      74             : 
      75             : #define Y 0
      76             : #define U 1
      77             : #define V 2
      78             : #define R 0
      79             : #define G 1
      80             : #define B 2
      81             : #define A 3
      82             : 
      83             : #define OFFSET(x) offsetof(LutContext, x)
      84             : #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
      85             : 
      86             : static const AVOption options[] = {
      87             :     { "c0", "set component #0 expression", OFFSET(comp_expr_str[0]),  AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
      88             :     { "c1", "set component #1 expression", OFFSET(comp_expr_str[1]),  AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
      89             :     { "c2", "set component #2 expression", OFFSET(comp_expr_str[2]),  AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
      90             :     { "c3", "set component #3 expression", OFFSET(comp_expr_str[3]),  AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
      91             :     { "y",  "set Y expression",            OFFSET(comp_expr_str[Y]),  AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
      92             :     { "u",  "set U expression",            OFFSET(comp_expr_str[U]),  AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
      93             :     { "v",  "set V expression",            OFFSET(comp_expr_str[V]),  AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
      94             :     { "r",  "set R expression",            OFFSET(comp_expr_str[R]),  AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
      95             :     { "g",  "set G expression",            OFFSET(comp_expr_str[G]),  AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
      96             :     { "b",  "set B expression",            OFFSET(comp_expr_str[B]),  AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
      97             :     { "a",  "set A expression",            OFFSET(comp_expr_str[A]),  AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
      98             :     { NULL }
      99             : };
     100             : 
     101          53 : static av_cold void uninit(AVFilterContext *ctx)
     102             : {
     103          53 :     LutContext *s = ctx->priv;
     104             :     int i;
     105             : 
     106         265 :     for (i = 0; i < 4; i++) {
     107         212 :         av_expr_free(s->comp_expr[i]);
     108         212 :         s->comp_expr[i] = NULL;
     109         212 :         av_freep(&s->comp_expr_str[i]);
     110             :     }
     111          53 : }
     112             : 
     113             : #define YUV_FORMATS                                         \
     114             :     AV_PIX_FMT_YUV444P,  AV_PIX_FMT_YUV422P,  AV_PIX_FMT_YUV420P,    \
     115             :     AV_PIX_FMT_YUV411P,  AV_PIX_FMT_YUV410P,  AV_PIX_FMT_YUV440P,    \
     116             :     AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,   \
     117             :     AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,   \
     118             :     AV_PIX_FMT_YUVJ440P,                                             \
     119             :     AV_PIX_FMT_YUV444P9LE, AV_PIX_FMT_YUV422P9LE, AV_PIX_FMT_YUV420P9LE, \
     120             :     AV_PIX_FMT_YUV444P10LE, AV_PIX_FMT_YUV422P10LE, AV_PIX_FMT_YUV420P10LE, AV_PIX_FMT_YUV440P10LE, \
     121             :     AV_PIX_FMT_YUV444P12LE, AV_PIX_FMT_YUV422P12LE, AV_PIX_FMT_YUV420P12LE, AV_PIX_FMT_YUV440P12LE, \
     122             :     AV_PIX_FMT_YUV444P14LE, AV_PIX_FMT_YUV422P14LE, AV_PIX_FMT_YUV420P14LE, \
     123             :     AV_PIX_FMT_YUV444P16LE, AV_PIX_FMT_YUV422P16LE, AV_PIX_FMT_YUV420P16LE, \
     124             :     AV_PIX_FMT_YUVA444P16LE, AV_PIX_FMT_YUVA422P16LE, AV_PIX_FMT_YUVA420P16LE
     125             : 
     126             : #define RGB_FORMATS                             \
     127             :     AV_PIX_FMT_ARGB,         AV_PIX_FMT_RGBA,         \
     128             :     AV_PIX_FMT_ABGR,         AV_PIX_FMT_BGRA,         \
     129             :     AV_PIX_FMT_RGB24,        AV_PIX_FMT_BGR24,        \
     130             :     AV_PIX_FMT_RGB48LE,      AV_PIX_FMT_RGBA64LE,     \
     131             :     AV_PIX_FMT_GBRP,         AV_PIX_FMT_GBRAP,        \
     132             :     AV_PIX_FMT_GBRP9LE,      AV_PIX_FMT_GBRP10LE,     \
     133             :     AV_PIX_FMT_GBRAP10LE,                             \
     134             :     AV_PIX_FMT_GBRP12LE,     AV_PIX_FMT_GBRP14LE,     \
     135             :     AV_PIX_FMT_GBRP16LE,     AV_PIX_FMT_GBRAP12LE,    \
     136             :     AV_PIX_FMT_GBRAP16LE
     137             : 
     138             : static const enum AVPixelFormat yuv_pix_fmts[] = { YUV_FORMATS, AV_PIX_FMT_NONE };
     139             : static const enum AVPixelFormat rgb_pix_fmts[] = { RGB_FORMATS, AV_PIX_FMT_NONE };
     140             : static const enum AVPixelFormat all_pix_fmts[] = { RGB_FORMATS, YUV_FORMATS, AV_PIX_FMT_NONE };
     141             : 
     142          53 : static int query_formats(AVFilterContext *ctx)
     143             : {
     144          53 :     LutContext *s = ctx->priv;
     145             : 
     146         106 :     const enum AVPixelFormat *pix_fmts = s->is_rgb ? rgb_pix_fmts :
     147          53 :                                                      s->is_yuv ? yuv_pix_fmts :
     148             :                                                                  all_pix_fmts;
     149          53 :     AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
     150          53 :     if (!fmts_list)
     151           0 :         return AVERROR(ENOMEM);
     152          53 :     return ff_set_common_formats(ctx, fmts_list);
     153             : }
     154             : 
     155             : /**
     156             :  * Clip value val in the minval - maxval range.
     157             :  */
     158           0 : static double clip(void *opaque, double val)
     159             : {
     160           0 :     LutContext *s = opaque;
     161           0 :     double minval = s->var_values[VAR_MINVAL];
     162           0 :     double maxval = s->var_values[VAR_MAXVAL];
     163             : 
     164           0 :     return av_clip(val, minval, maxval);
     165             : }
     166             : 
     167             : /**
     168             :  * Compute gamma correction for value val, assuming the minval-maxval
     169             :  * range, val is clipped to a value contained in the same interval.
     170             :  */
     171           0 : static double compute_gammaval(void *opaque, double gamma)
     172             : {
     173           0 :     LutContext *s = opaque;
     174           0 :     double val    = s->var_values[VAR_CLIPVAL];
     175           0 :     double minval = s->var_values[VAR_MINVAL];
     176           0 :     double maxval = s->var_values[VAR_MAXVAL];
     177             : 
     178           0 :     return pow((val-minval)/(maxval-minval), gamma) * (maxval-minval)+minval;
     179             : }
     180             : 
     181             : /**
     182             :  * Compute ITU Rec.709 gamma correction of value val.
     183             :  */
     184           0 : static double compute_gammaval709(void *opaque, double gamma)
     185             : {
     186           0 :     LutContext *s = opaque;
     187           0 :     double val    = s->var_values[VAR_CLIPVAL];
     188           0 :     double minval = s->var_values[VAR_MINVAL];
     189           0 :     double maxval = s->var_values[VAR_MAXVAL];
     190           0 :     double level = (val - minval) / (maxval - minval);
     191           0 :     level = level < 0.018 ? 4.5 * level
     192           0 :                           : 1.099 * pow(level, 1.0 / gamma) - 0.099;
     193           0 :     return level * (maxval - minval) + minval;
     194             : }
     195             : 
     196             : static double (* const funcs1[])(void *, double) = {
     197             :     clip,
     198             :     compute_gammaval,
     199             :     compute_gammaval709,
     200             :     NULL
     201             : };
     202             : 
     203             : static const char * const funcs1_names[] = {
     204             :     "clip",
     205             :     "gammaval",
     206             :     "gammaval709",
     207             :     NULL
     208             : };
     209             : 
     210          52 : static int config_props(AVFilterLink *inlink)
     211             : {
     212          52 :     AVFilterContext *ctx = inlink->dst;
     213          52 :     LutContext *s = ctx->priv;
     214          52 :     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
     215             :     uint8_t rgba_map[4]; /* component index -> RGBA color index map */
     216             :     int min[4], max[4];
     217             :     int val, color, ret;
     218             : 
     219          52 :     s->hsub = desc->log2_chroma_w;
     220          52 :     s->vsub = desc->log2_chroma_h;
     221             : 
     222          52 :     s->var_values[VAR_W] = inlink->w;
     223          52 :     s->var_values[VAR_H] = inlink->h;
     224          52 :     s->is_16bit = desc->comp[0].depth > 8;
     225             : 
     226          52 :     switch (inlink->format) {
     227          30 :     case AV_PIX_FMT_YUV410P:
     228             :     case AV_PIX_FMT_YUV411P:
     229             :     case AV_PIX_FMT_YUV420P:
     230             :     case AV_PIX_FMT_YUV422P:
     231             :     case AV_PIX_FMT_YUV440P:
     232             :     case AV_PIX_FMT_YUV444P:
     233             :     case AV_PIX_FMT_YUVA420P:
     234             :     case AV_PIX_FMT_YUVA422P:
     235             :     case AV_PIX_FMT_YUVA444P:
     236             :     case AV_PIX_FMT_YUV420P9LE:
     237             :     case AV_PIX_FMT_YUV422P9LE:
     238             :     case AV_PIX_FMT_YUV444P9LE:
     239             :     case AV_PIX_FMT_YUVA420P9LE:
     240             :     case AV_PIX_FMT_YUVA422P9LE:
     241             :     case AV_PIX_FMT_YUVA444P9LE:
     242             :     case AV_PIX_FMT_YUV420P10LE:
     243             :     case AV_PIX_FMT_YUV422P10LE:
     244             :     case AV_PIX_FMT_YUV440P10LE:
     245             :     case AV_PIX_FMT_YUV444P10LE:
     246             :     case AV_PIX_FMT_YUVA420P10LE:
     247             :     case AV_PIX_FMT_YUVA422P10LE:
     248             :     case AV_PIX_FMT_YUVA444P10LE:
     249             :     case AV_PIX_FMT_YUV420P12LE:
     250             :     case AV_PIX_FMT_YUV422P12LE:
     251             :     case AV_PIX_FMT_YUV440P12LE:
     252             :     case AV_PIX_FMT_YUV444P12LE:
     253             :     case AV_PIX_FMT_YUV420P14LE:
     254             :     case AV_PIX_FMT_YUV422P14LE:
     255             :     case AV_PIX_FMT_YUV444P14LE:
     256             :     case AV_PIX_FMT_YUV420P16LE:
     257             :     case AV_PIX_FMT_YUV422P16LE:
     258             :     case AV_PIX_FMT_YUV444P16LE:
     259             :     case AV_PIX_FMT_YUVA420P16LE:
     260             :     case AV_PIX_FMT_YUVA422P16LE:
     261             :     case AV_PIX_FMT_YUVA444P16LE:
     262          30 :         min[Y] = 16 * (1 << (desc->comp[0].depth - 8));
     263          30 :         min[U] = 16 * (1 << (desc->comp[1].depth - 8));
     264          30 :         min[V] = 16 * (1 << (desc->comp[2].depth - 8));
     265          30 :         min[A] = 0;
     266          30 :         max[Y] = 235 * (1 << (desc->comp[0].depth - 8));
     267          30 :         max[U] = 240 * (1 << (desc->comp[1].depth - 8));
     268          30 :         max[V] = 240 * (1 << (desc->comp[2].depth - 8));
     269          30 :         max[A] = (1 << desc->comp[0].depth) - 1;
     270          30 :         break;
     271           2 :     case AV_PIX_FMT_RGB48LE:
     272             :     case AV_PIX_FMT_RGBA64LE:
     273           2 :         min[0] = min[1] = min[2] = min[3] = 0;
     274           2 :         max[0] = max[1] = max[2] = max[3] = 65535;
     275           2 :         break;
     276          20 :     default:
     277          20 :         min[0] = min[1] = min[2] = min[3] = 0;
     278          20 :         max[0] = max[1] = max[2] = max[3] = 255 * (1 << (desc->comp[0].depth - 8));
     279             :     }
     280             : 
     281          52 :     s->is_yuv = s->is_rgb = 0;
     282          52 :     s->is_planar = desc->flags & AV_PIX_FMT_FLAG_PLANAR;
     283          52 :     if      (ff_fmt_is_in(inlink->format, yuv_pix_fmts)) s->is_yuv = 1;
     284          18 :     else if (ff_fmt_is_in(inlink->format, rgb_pix_fmts)) s->is_rgb = 1;
     285             : 
     286          52 :     if (s->is_rgb) {
     287          18 :         ff_fill_rgba_map(rgba_map, inlink->format);
     288          18 :         s->step = av_get_bits_per_pixel(desc) >> 3;
     289          18 :         if (s->is_16bit) {
     290          10 :             s->step = s->step >> 1;
     291             :         }
     292             :     }
     293             : 
     294         223 :     for (color = 0; color < desc->nb_components; color++) {
     295             :         double res;
     296         171 :         int comp = s->is_rgb ? rgba_map[color] : color;
     297             : 
     298             :         /* create the parsed expression */
     299         171 :         av_expr_free(s->comp_expr[color]);
     300         171 :         s->comp_expr[color] = NULL;
     301         171 :         ret = av_expr_parse(&s->comp_expr[color], s->comp_expr_str[color],
     302             :                             var_names, funcs1_names, funcs1, NULL, NULL, 0, ctx);
     303         171 :         if (ret < 0) {
     304           0 :             av_log(ctx, AV_LOG_ERROR,
     305             :                    "Error when parsing the expression '%s' for the component %d and color %d.\n",
     306             :                    s->comp_expr_str[comp], comp, color);
     307           0 :             return AVERROR(EINVAL);
     308             :         }
     309             : 
     310             :         /* compute the lut */
     311         171 :         s->var_values[VAR_MAXVAL] = max[color];
     312         171 :         s->var_values[VAR_MINVAL] = min[color];
     313             : 
     314    11206827 :         for (val = 0; val < FF_ARRAY_ELEMS(s->lut[comp]); val++) {
     315    11206656 :             s->var_values[VAR_VAL] = val;
     316    11206656 :             s->var_values[VAR_CLIPVAL] = av_clip(val, min[color], max[color]);
     317    11206656 :             s->var_values[VAR_NEGVAL] =
     318    11206656 :                 av_clip(min[color] + max[color] - s->var_values[VAR_VAL],
     319             :                         min[color], max[color]);
     320             : 
     321    11206656 :             res = av_expr_eval(s->comp_expr[color], s->var_values, s);
     322    11206656 :             if (isnan(res)) {
     323           0 :                 av_log(ctx, AV_LOG_ERROR,
     324             :                        "Error when evaluating the expression '%s' for the value %d for the component %d.\n",
     325             :                        s->comp_expr_str[color], val, comp);
     326           0 :                 return AVERROR(EINVAL);
     327             :             }
     328    11206656 :             s->lut[comp][val] = av_clip((int)res, 0, max[A]);
     329    11206656 :             av_log(ctx, AV_LOG_DEBUG, "val[%d][%d] = %d\n", comp, val, s->lut[comp][val]);
     330             :         }
     331             :     }
     332             : 
     333          52 :     return 0;
     334             : }
     335             : 
     336         101 : static int filter_frame(AVFilterLink *inlink, AVFrame *in)
     337             : {
     338         101 :     AVFilterContext *ctx = inlink->dst;
     339         101 :     LutContext *s = ctx->priv;
     340         101 :     AVFilterLink *outlink = ctx->outputs[0];
     341             :     AVFrame *out;
     342         101 :     int i, j, plane, direct = 0;
     343             : 
     344         101 :     if (av_frame_is_writable(in)) {
     345         101 :         direct = 1;
     346         101 :         out = in;
     347             :     } else {
     348           0 :         out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
     349           0 :         if (!out) {
     350           0 :             av_frame_free(&in);
     351           0 :             return AVERROR(ENOMEM);
     352             :         }
     353           0 :         av_frame_copy_props(out, in);
     354             :     }
     355             : 
     356         103 :     if (s->is_rgb && s->is_16bit && !s->is_planar) {
     357             :         /* packed, 16-bit */
     358             :         uint16_t *inrow, *outrow, *inrow0, *outrow0;
     359           2 :         const int w = inlink->w;
     360           2 :         const int h = in->height;
     361           2 :         const uint16_t (*tab)[256*256] = (const uint16_t (*)[256*256])s->lut;
     362           2 :         const int in_linesize  =  in->linesize[0] / 2;
     363           2 :         const int out_linesize = out->linesize[0] / 2;
     364           2 :         const int step = s->step;
     365             : 
     366           2 :         inrow0  = (uint16_t*) in ->data[0];
     367           2 :         outrow0 = (uint16_t*) out->data[0];
     368             : 
     369         578 :         for (i = 0; i < h; i ++) {
     370         576 :             inrow  = inrow0;
     371         576 :             outrow = outrow0;
     372      203328 :             for (j = 0; j < w; j++) {
     373             : 
     374      202752 :                 switch (step) {
     375             : #if HAVE_BIGENDIAN
     376             :                 case 4:  outrow[3] = av_bswap16(tab[3][av_bswap16(inrow[3])]); // Fall-through
     377             :                 case 3:  outrow[2] = av_bswap16(tab[2][av_bswap16(inrow[2])]); // Fall-through
     378             :                 case 2:  outrow[1] = av_bswap16(tab[1][av_bswap16(inrow[1])]); // Fall-through
     379             :                 default: outrow[0] = av_bswap16(tab[0][av_bswap16(inrow[0])]);
     380             : #else
     381      101376 :                 case 4:  outrow[3] = tab[3][inrow[3]]; // Fall-through
     382      202752 :                 case 3:  outrow[2] = tab[2][inrow[2]]; // Fall-through
     383      202752 :                 case 2:  outrow[1] = tab[1][inrow[1]]; // Fall-through
     384      202752 :                 default: outrow[0] = tab[0][inrow[0]];
     385             : #endif
     386             :                 }
     387      202752 :                 outrow += step;
     388      202752 :                 inrow  += step;
     389             :             }
     390         576 :             inrow0  += in_linesize;
     391         576 :             outrow0 += out_linesize;
     392             :         }
     393         105 :     } else if (s->is_rgb && !s->is_planar) {
     394             :         /* packed */
     395             :         uint8_t *inrow, *outrow, *inrow0, *outrow0;
     396           6 :         const int w = inlink->w;
     397           6 :         const int h = in->height;
     398           6 :         const uint16_t (*tab)[256*256] = (const uint16_t (*)[256*256])s->lut;
     399           6 :         const int in_linesize  =  in->linesize[0];
     400           6 :         const int out_linesize = out->linesize[0];
     401           6 :         const int step = s->step;
     402             : 
     403           6 :         inrow0  = in ->data[0];
     404           6 :         outrow0 = out->data[0];
     405             : 
     406        1734 :         for (i = 0; i < h; i ++) {
     407        1728 :             inrow  = inrow0;
     408        1728 :             outrow = outrow0;
     409      609984 :             for (j = 0; j < w; j++) {
     410      608256 :                 switch (step) {
     411      405504 :                 case 4:  outrow[3] = tab[3][inrow[3]]; // Fall-through
     412      608256 :                 case 3:  outrow[2] = tab[2][inrow[2]]; // Fall-through
     413      608256 :                 case 2:  outrow[1] = tab[1][inrow[1]]; // Fall-through
     414      608256 :                 default: outrow[0] = tab[0][inrow[0]];
     415             :                 }
     416      608256 :                 outrow += step;
     417      608256 :                 inrow  += step;
     418             :             }
     419        1728 :             inrow0  += in_linesize;
     420        1728 :             outrow0 += out_linesize;
     421             :         }
     422          93 :     } else if (s->is_16bit) {
     423             :         // planar >8 bit depth
     424             :         uint16_t *inrow, *outrow;
     425             : 
     426         118 :         for (plane = 0; plane < 4 && in->data[plane] && in->linesize[plane]; plane++) {
     427          90 :             int vsub = plane == 1 || plane == 2 ? s->vsub : 0;
     428          90 :             int hsub = plane == 1 || plane == 2 ? s->hsub : 0;
     429          90 :             int h = AV_CEIL_RSHIFT(inlink->h, vsub);
     430          90 :             int w = AV_CEIL_RSHIFT(inlink->w, hsub);
     431          90 :             const uint16_t *tab = s->lut[plane];
     432          90 :             const int in_linesize  =  in->linesize[plane] / 2;
     433          90 :             const int out_linesize = out->linesize[plane] / 2;
     434             : 
     435          90 :             inrow  = (uint16_t *)in ->data[plane];
     436          90 :             outrow = (uint16_t *)out->data[plane];
     437             : 
     438       23706 :             for (i = 0; i < h; i++) {
     439     7424064 :                 for (j = 0; j < w; j++) {
     440             : #if HAVE_BIGENDIAN
     441             :                     outrow[j] = av_bswap16(tab[av_bswap16(inrow[j])]);
     442             : #else
     443     7400448 :                     outrow[j] = tab[inrow[j]];
     444             : #endif
     445             :                 }
     446       23616 :                 inrow  += in_linesize;
     447       23616 :                 outrow += out_linesize;
     448             :             }
     449             :         }
     450             :     } else {
     451             :         /* planar 8bit depth */
     452             :         uint8_t *inrow, *outrow;
     453             : 
     454         264 :         for (plane = 0; plane < 4 && in->data[plane] && in->linesize[plane]; plane++) {
     455         199 :             int vsub = plane == 1 || plane == 2 ? s->vsub : 0;
     456         199 :             int hsub = plane == 1 || plane == 2 ? s->hsub : 0;
     457         199 :             int h = AV_CEIL_RSHIFT(inlink->h, vsub);
     458         199 :             int w = AV_CEIL_RSHIFT(inlink->w, hsub);
     459         199 :             const uint16_t *tab = s->lut[plane];
     460         199 :             const int in_linesize  =  in->linesize[plane];
     461         199 :             const int out_linesize = out->linesize[plane];
     462             : 
     463         199 :             inrow  = in ->data[plane];
     464         199 :             outrow = out->data[plane];
     465             : 
     466       41239 :             for (i = 0; i < h; i++) {
     467    11306448 :                 for (j = 0; j < w; j++)
     468    11265408 :                     outrow[j] = tab[inrow[j]];
     469       41040 :                 inrow  += in_linesize;
     470       41040 :                 outrow += out_linesize;
     471             :             }
     472             :         }
     473             :     }
     474             : 
     475         101 :     if (!direct)
     476           0 :         av_frame_free(&in);
     477             : 
     478         101 :     return ff_filter_frame(outlink, out);
     479             : }
     480             : 
     481             : static const AVFilterPad inputs[] = {
     482             :     { .name         = "default",
     483             :       .type         = AVMEDIA_TYPE_VIDEO,
     484             :       .filter_frame = filter_frame,
     485             :       .config_props = config_props,
     486             :     },
     487             :     { NULL }
     488             : };
     489             : static const AVFilterPad outputs[] = {
     490             :     { .name = "default",
     491             :       .type = AVMEDIA_TYPE_VIDEO,
     492             :     },
     493             :     { NULL }
     494             : };
     495             : 
     496             : #define DEFINE_LUT_FILTER(name_, description_)                          \
     497             :     AVFilter ff_vf_##name_ = {                                          \
     498             :         .name          = #name_,                                        \
     499             :         .description   = NULL_IF_CONFIG_SMALL(description_),            \
     500             :         .priv_size     = sizeof(LutContext),                            \
     501             :         .priv_class    = &name_ ## _class,                              \
     502             :         .init          = name_##_init,                                  \
     503             :         .uninit        = uninit,                                        \
     504             :         .query_formats = query_formats,                                 \
     505             :         .inputs        = inputs,                                        \
     506             :         .outputs       = outputs,                                       \
     507             :         .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,        \
     508             :     }
     509             : 
     510             : #if CONFIG_LUT_FILTER
     511             : 
     512             : #define lut_options options
     513             : AVFILTER_DEFINE_CLASS(lut);
     514             : 
     515          52 : static int lut_init(AVFilterContext *ctx)
     516             : {
     517          52 :     return 0;
     518             : }
     519             : 
     520             : DEFINE_LUT_FILTER(lut, "Compute and apply a lookup table to the RGB/YUV input video.");
     521             : #endif
     522             : 
     523             : #if CONFIG_LUTYUV_FILTER
     524             : 
     525             : #define lutyuv_options options
     526             : AVFILTER_DEFINE_CLASS(lutyuv);
     527             : 
     528           0 : static av_cold int lutyuv_init(AVFilterContext *ctx)
     529             : {
     530           0 :     LutContext *s = ctx->priv;
     531             : 
     532           0 :     s->is_yuv = 1;
     533             : 
     534           0 :     return 0;
     535             : }
     536             : 
     537             : DEFINE_LUT_FILTER(lutyuv, "Compute and apply a lookup table to the YUV input video.");
     538             : #endif
     539             : 
     540             : #if CONFIG_LUTRGB_FILTER
     541             : 
     542             : #define lutrgb_options options
     543             : AVFILTER_DEFINE_CLASS(lutrgb);
     544             : 
     545           0 : static av_cold int lutrgb_init(AVFilterContext *ctx)
     546             : {
     547           0 :     LutContext *s = ctx->priv;
     548             : 
     549           0 :     s->is_rgb = 1;
     550             : 
     551           0 :     return 0;
     552             : }
     553             : 
     554             : DEFINE_LUT_FILTER(lutrgb, "Compute and apply a lookup table to the RGB input video.");
     555             : #endif
     556             : 
     557             : #if CONFIG_NEGATE_FILTER
     558             : 
     559             : static const AVOption negate_options[] = {
     560             :     { "negate_alpha", NULL, OFFSET(negate_alpha), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
     561             :     { NULL }
     562             : };
     563             : 
     564             : AVFILTER_DEFINE_CLASS(negate);
     565             : 
     566           1 : static av_cold int negate_init(AVFilterContext *ctx)
     567             : {
     568           1 :     LutContext *s = ctx->priv;
     569             :     int i;
     570             : 
     571           1 :     av_log(ctx, AV_LOG_DEBUG, "negate_alpha:%d\n", s->negate_alpha);
     572             : 
     573           5 :     for (i = 0; i < 4; i++) {
     574           4 :         s->comp_expr_str[i] = av_strdup((i == 3 && !s->negate_alpha) ?
     575             :                                           "val" : "negval");
     576           4 :         if (!s->comp_expr_str[i]) {
     577           0 :             uninit(ctx);
     578           0 :             return AVERROR(ENOMEM);
     579             :         }
     580             :     }
     581             : 
     582           1 :     return 0;
     583             : }
     584             : 
     585             : DEFINE_LUT_FILTER(negate, "Negate input video.");
     586             : 
     587             : #endif

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