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FFmpeg/libavfilter/vf_lut3d.c

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  1. /*

  2.  * Copyright (c) 2013 Clément Bœsch

  3.  * Copyright (c) 2018 Paul B Mahol

  4.  *

  5.  * This file is part of FFmpeg.

  6.  *

  7.  * FFmpeg is free software; you can redistribute it and/or

  8.  * modify it under the terms of the GNU Lesser General Public

  9.  * License as published by the Free Software Foundation; either

  10.  * version 2.1 of the License, or (at your option) any later version.

  11.  *

  12.  * FFmpeg is distributed in the hope that it will be useful,

  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  15.  * Lesser General Public License for more details.

  16.  *

  17.  * You should have received a copy of the GNU Lesser General Public

  18.  * License along with FFmpeg; if not, write to the Free Software

  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  20.  */

  21. 

  22. /**

  23.  * @file

  24.  * 3D Lookup table filter

  25.  */

  26. 

  27. #include "libavutil/opt.h"

  28. #include "libavutil/file.h"

  29. #include "libavutil/intreadwrite.h"

  30. #include "libavutil/avassert.h"

  31. #include "libavutil/pixdesc.h"

  32. #include "libavutil/avstring.h"

  33. #include "avfilter.h"

  34. #include "drawutils.h"

  35. #include "formats.h"

  36. #include "framesync.h"

  37. #include "internal.h"

  38. #include "video.h"

  39. 

  40. #define R 0

  41. #define G 1

  42. #define B 2

  43. #define A 3

  44. 

  45. enum interp_mode {

  46.     INTERPOLATE_NEAREST,

  47.     INTERPOLATE_TRILINEAR,

  48.     INTERPOLATE_TETRAHEDRAL,

  49.     NB_INTERP_MODE

  50. };

  51. 

  52. struct rgbvec {

  53.     float r, g, b;

  54. };

  55. 

  56. /* 3D LUT don't often go up to level 32, but it is common to have a Hald CLUT

  57.  * of 512x512 (64x64x64) */

  58. #define MAX_LEVEL 64

  59. 

  60. typedef struct LUT3DContext {

  61.     const AVClass *class;

  62.     int interpolation;          ///<interp_mode

  63.     char *file;

  64.     uint8_t rgba_map[4];

  65.     int step;

  66.     avfilter_action_func *interp;

  67.     struct rgbvec lut[MAX_LEVEL][MAX_LEVEL][MAX_LEVEL];

  68.     int lutsize;

  69. #if CONFIG_HALDCLUT_FILTER

  70.     uint8_t clut_rgba_map[4];

  71.     int clut_step;

  72.     int clut_bits;

  73.     int clut_planar;

  74.     int clut_width;

  75.     FFFrameSync fs;

  76. #endif

  77. } LUT3DContext;

  78. 

  79. typedef struct ThreadData {

  80.     AVFrame *in, *out;

  81. } ThreadData;

  82. 

  83. #define OFFSET(x) offsetof(LUT3DContext, x)

  84. #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

  85. #define COMMON_OPTIONS \

  86.     { "interp", "select interpolation mode", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERPOLATE_TETRAHEDRAL}, 0, NB_INTERP_MODE-1, FLAGS, "interp_mode" }, \

  87.         { "nearest",     "use values from the nearest defined points",            0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_NEAREST},     INT_MIN, INT_MAX, FLAGS, "interp_mode" }, \

  88.         { "trilinear",   "interpolate values using the 8 points defining a cube", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_TRILINEAR},   INT_MIN, INT_MAX, FLAGS, "interp_mode" }, \

  89.         { "tetrahedral", "interpolate values using a tetrahedron",                0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_TETRAHEDRAL}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, \

  90.     { NULL }

  91. 

  92. static inline float lerpf(float v0, float v1, float f)

  93. {

  94.     return v0 + (v1 - v0) * f;

  95. }

  96. 

  97. static inline struct rgbvec lerp(const struct rgbvec *v0, const struct rgbvec *v1, float f)

  98. {

  99.     struct rgbvec v = {

  100.         lerpf(v0->r, v1->r, f), lerpf(v0->g, v1->g, f), lerpf(v0->b, v1->b, f)

  101.     };

  102.     return v;

  103. }

  104. 

  105. #define NEAR(x) ((int)((x) + .5))

  106. #define PREV(x) ((int)(x))

  107. #define NEXT(x) (FFMIN((int)(x) + 1, lut3d->lutsize - 1))

  108. 

  109. /**

  110.  * Get the nearest defined point

  111.  */

  112. static inline struct rgbvec interp_nearest(const LUT3DContext *lut3d,

  113.                                            const struct rgbvec *s)

  114. {

  115.     return lut3d->lut[NEAR(s->r)][NEAR(s->g)][NEAR(s->b)];

  116. }

  117. 

  118. /**

  119.  * Interpolate using the 8 vertices of a cube

  120.  * @see https://en.wikipedia.org/wiki/Trilinear_interpolation

  121.  */

  122. static inline struct rgbvec interp_trilinear(const LUT3DContext *lut3d,

  123.                                              const struct rgbvec *s)

  124. {

  125.     const int prev[] = {PREV(s->r), PREV(s->g), PREV(s->b)};

  126.     const int next[] = {NEXT(s->r), NEXT(s->g), NEXT(s->b)};

  127.     const struct rgbvec d = {s->r - prev[0], s->g - prev[1], s->b - prev[2]};

  128.     const struct rgbvec c000 = lut3d->lut[prev[0]][prev[1]][prev[2]];

  129.     const struct rgbvec c001 = lut3d->lut[prev[0]][prev[1]][next[2]];

  130.     const struct rgbvec c010 = lut3d->lut[prev[0]][next[1]][prev[2]];

  131.     const struct rgbvec c011 = lut3d->lut[prev[0]][next[1]][next[2]];

  132.     const struct rgbvec c100 = lut3d->lut[next[0]][prev[1]][prev[2]];

  133.     const struct rgbvec c101 = lut3d->lut[next[0]][prev[1]][next[2]];

  134.     const struct rgbvec c110 = lut3d->lut[next[0]][next[1]][prev[2]];

  135.     const struct rgbvec c111 = lut3d->lut[next[0]][next[1]][next[2]];

  136.     const struct rgbvec c00  = lerp(&c000, &c100, d.r);

  137.     const struct rgbvec c10  = lerp(&c010, &c110, d.r);

  138.     const struct rgbvec c01  = lerp(&c001, &c101, d.r);

  139.     const struct rgbvec c11  = lerp(&c011, &c111, d.r);

  140.     const struct rgbvec c0   = lerp(&c00,  &c10,  d.g);

  141.     const struct rgbvec c1   = lerp(&c01,  &c11,  d.g);

  142.     const struct rgbvec c    = lerp(&c0,   &c1,   d.b);

  143.     return c;

  144. }

  145. 

  146. /**

  147.  * Tetrahedral interpolation. Based on code found in Truelight Software Library paper.

  148.  * @see http://www.filmlight.ltd.uk/pdf/whitepapers/FL-TL-TN-0057-SoftwareLib.pdf

  149.  */

  150. static inline struct rgbvec interp_tetrahedral(const LUT3DContext *lut3d,

  151.                                                const struct rgbvec *s)

  152. {

  153.     const int prev[] = {PREV(s->r), PREV(s->g), PREV(s->b)};

  154.     const int next[] = {NEXT(s->r), NEXT(s->g), NEXT(s->b)};

  155.     const struct rgbvec d = {s->r - prev[0], s->g - prev[1], s->b - prev[2]};

  156.     const struct rgbvec c000 = lut3d->lut[prev[0]][prev[1]][prev[2]];

  157.     const struct rgbvec c111 = lut3d->lut[next[0]][next[1]][next[2]];

  158.     struct rgbvec c;

  159.     if (d.r > d.g) {

  160.         if (d.g > d.b) {

  161.             const struct rgbvec c100 = lut3d->lut[next[0]][prev[1]][prev[2]];

  162.             const struct rgbvec c110 = lut3d->lut[next[0]][next[1]][prev[2]];

  163.             c.r = (1-d.r) * c000.r + (d.r-d.g) * c100.r + (d.g-d.b) * c110.r + (d.b) * c111.r;

  164.             c.g = (1-d.r) * c000.g + (d.r-d.g) * c100.g + (d.g-d.b) * c110.g + (d.b) * c111.g;

  165.             c.b = (1-d.r) * c000.b + (d.r-d.g) * c100.b + (d.g-d.b) * c110.b + (d.b) * c111.b;

  166.         } else if (d.r > d.b) {

  167.             const struct rgbvec c100 = lut3d->lut[next[0]][prev[1]][prev[2]];

  168.             const struct rgbvec c101 = lut3d->lut[next[0]][prev[1]][next[2]];

  169.             c.r = (1-d.r) * c000.r + (d.r-d.b) * c100.r + (d.b-d.g) * c101.r + (d.g) * c111.r;

  170.             c.g = (1-d.r) * c000.g + (d.r-d.b) * c100.g + (d.b-d.g) * c101.g + (d.g) * c111.g;

  171.             c.b = (1-d.r) * c000.b + (d.r-d.b) * c100.b + (d.b-d.g) * c101.b + (d.g) * c111.b;

  172.         } else {

  173.             const struct rgbvec c001 = lut3d->lut[prev[0]][prev[1]][next[2]];

  174.             const struct rgbvec c101 = lut3d->lut[next[0]][prev[1]][next[2]];

  175.             c.r = (1-d.b) * c000.r + (d.b-d.r) * c001.r + (d.r-d.g) * c101.r + (d.g) * c111.r;

  176.             c.g = (1-d.b) * c000.g + (d.b-d.r) * c001.g + (d.r-d.g) * c101.g + (d.g) * c111.g;

  177.             c.b = (1-d.b) * c000.b + (d.b-d.r) * c001.b + (d.r-d.g) * c101.b + (d.g) * c111.b;

  178.         }

  179.     } else {

  180.         if (d.b > d.g) {

  181.             const struct rgbvec c001 = lut3d->lut[prev[0]][prev[1]][next[2]];

  182.             const struct rgbvec c011 = lut3d->lut[prev[0]][next[1]][next[2]];

  183.             c.r = (1-d.b) * c000.r + (d.b-d.g) * c001.r + (d.g-d.r) * c011.r + (d.r) * c111.r;

  184.             c.g = (1-d.b) * c000.g + (d.b-d.g) * c001.g + (d.g-d.r) * c011.g + (d.r) * c111.g;

  185.             c.b = (1-d.b) * c000.b + (d.b-d.g) * c001.b + (d.g-d.r) * c011.b + (d.r) * c111.b;

  186.         } else if (d.b > d.r) {

  187.             const struct rgbvec c010 = lut3d->lut[prev[0]][next[1]][prev[2]];

  188.             const struct rgbvec c011 = lut3d->lut[prev[0]][next[1]][next[2]];

  189.             c.r = (1-d.g) * c000.r + (d.g-d.b) * c010.r + (d.b-d.r) * c011.r + (d.r) * c111.r;

  190.             c.g = (1-d.g) * c000.g + (d.g-d.b) * c010.g + (d.b-d.r) * c011.g + (d.r) * c111.g;

  191.             c.b = (1-d.g) * c000.b + (d.g-d.b) * c010.b + (d.b-d.r) * c011.b + (d.r) * c111.b;

  192.         } else {

  193.             const struct rgbvec c010 = lut3d->lut[prev[0]][next[1]][prev[2]];

  194.             const struct rgbvec c110 = lut3d->lut[next[0]][next[1]][prev[2]];

  195.             c.r = (1-d.g) * c000.r + (d.g-d.r) * c010.r + (d.r-d.b) * c110.r + (d.b) * c111.r;

  196.             c.g = (1-d.g) * c000.g + (d.g-d.r) * c010.g + (d.r-d.b) * c110.g + (d.b) * c111.g;

  197.             c.b = (1-d.g) * c000.b + (d.g-d.r) * c010.b + (d.r-d.b) * c110.b + (d.b) * c111.b;

  198.         }

  199.     }

  200.     return c;

  201. }

  202. 

  203. #define DEFINE_INTERP_FUNC_PLANAR(name, nbits, depth)                                                  \

  204. static int interp_##nbits##_##name##_p##depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \

  205. {                                                                                                      \

  206.     int x, y;                                                                                          \

  207.     const LUT3DContext *lut3d = ctx->priv;                                                             \

  208.     const ThreadData *td = arg;                                                                        \

  209.     const AVFrame *in  = td->in;                                                                       \

  210.     const AVFrame *out = td->out;                                                                      \

  211.     const int direct = out == in;                                                                      \

  212.     const int slice_start = (in->height *  jobnr   ) / nb_jobs;                                        \

  213.     const int slice_end   = (in->height * (jobnr+1)) / nb_jobs;                                        \

  214.     uint8_t *grow = out->data[0] + slice_start * out->linesize[0];                                     \

  215.     uint8_t *brow = out->data[1] + slice_start * out->linesize[1];                                     \

  216.     uint8_t *rrow = out->data[2] + slice_start * out->linesize[2];                                     \

  217.     uint8_t *arow = out->data[3] + slice_start * out->linesize[3];                                     \

  218.     const uint8_t *srcgrow = in->data[0] + slice_start * in->linesize[0];                              \

  219.     const uint8_t *srcbrow = in->data[1] + slice_start * in->linesize[1];                              \

  220.     const uint8_t *srcrrow = in->data[2] + slice_start * in->linesize[2];                              \

  221.     const uint8_t *srcarow = in->data[3] + slice_start * in->linesize[3];                              \

  222.     const float scale = (1. / ((1<<depth) - 1)) * (lut3d->lutsize - 1);                                \

  223.                                                                                                        \

  224.     for (y = slice_start; y < slice_end; y++) {                                                        \

  225.         uint##nbits##_t *dstg = (uint##nbits##_t *)grow;                                               \

  226.         uint##nbits##_t *dstb = (uint##nbits##_t *)brow;                                               \

  227.         uint##nbits##_t *dstr = (uint##nbits##_t *)rrow;                                               \

  228.         uint##nbits##_t *dsta = (uint##nbits##_t *)arow;                                               \

  229.         const uint##nbits##_t *srcg = (const uint##nbits##_t *)srcgrow;                                \

  230.         const uint##nbits##_t *srcb = (const uint##nbits##_t *)srcbrow;                                \

  231.         const uint##nbits##_t *srcr = (const uint##nbits##_t *)srcrrow;                                \

  232.         const uint##nbits##_t *srca = (const uint##nbits##_t *)srcarow;                                \

  233.         for (x = 0; x < in->width; x++) {                                                              \

  234.             const struct rgbvec scaled_rgb = {srcr[x] * scale,                                         \

  235.                                               srcg[x] * scale,                                         \

  236.                                               srcb[x] * scale};                                        \

  237.             struct rgbvec vec = interp_##name(lut3d, &scaled_rgb);                                     \

  238.             dstr[x] = av_clip_uintp2(vec.r * (float)((1<<depth) - 1), depth);                          \

  239.             dstg[x] = av_clip_uintp2(vec.g * (float)((1<<depth) - 1), depth);                          \

  240.             dstb[x] = av_clip_uintp2(vec.b * (float)((1<<depth) - 1), depth);                          \

  241.             if (!direct && in->linesize[3])                                                            \

  242.                 dsta[x] = srca[x];                                                                     \

  243.         }                                                                                              \

  244.         grow += out->linesize[0];                                                                      \

  245.         brow += out->linesize[1];                                                                      \

  246.         rrow += out->linesize[2];                                                                      \

  247.         arow += out->linesize[3];                                                                      \

  248.         srcgrow += in->linesize[0];                                                                    \

  249.         srcbrow += in->linesize[1];                                                                    \

  250.         srcrrow += in->linesize[2];                                                                    \

  251.         srcarow += in->linesize[3];                                                                    \

  252.     }                                                                                                  \

  253.     return 0;                                                                                          \

  254. }

  255. 

  256. DEFINE_INTERP_FUNC_PLANAR(nearest,     8, 8)

  257. DEFINE_INTERP_FUNC_PLANAR(trilinear,   8, 8)

  258. DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 8, 8)

  259. 

  260. DEFINE_INTERP_FUNC_PLANAR(nearest,     16, 9)

  261. DEFINE_INTERP_FUNC_PLANAR(trilinear,   16, 9)

  262. DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 9)

  263. 

  264. DEFINE_INTERP_FUNC_PLANAR(nearest,     16, 10)

  265. DEFINE_INTERP_FUNC_PLANAR(trilinear,   16, 10)

  266. DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 10)

  267. 

  268. DEFINE_INTERP_FUNC_PLANAR(nearest,     16, 12)

  269. DEFINE_INTERP_FUNC_PLANAR(trilinear,   16, 12)

  270. DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 12)

  271. 

  272. DEFINE_INTERP_FUNC_PLANAR(nearest,     16, 14)

  273. DEFINE_INTERP_FUNC_PLANAR(trilinear,   16, 14)

  274. DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 14)

  275. 

  276. DEFINE_INTERP_FUNC_PLANAR(nearest,     16, 16)

  277. DEFINE_INTERP_FUNC_PLANAR(trilinear,   16, 16)

  278. DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 16)

  279. 

  280. #define DEFINE_INTERP_FUNC(name, nbits)                                                             \

  281. static int interp_##nbits##_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)         \

  282. {                                                                                                   \

  283.     int x, y;                                                                                       \

  284.     const LUT3DContext *lut3d = ctx->priv;                                                          \

  285.     const ThreadData *td = arg;                                                                     \

  286.     const AVFrame *in  = td->in;                                                                    \

  287.     const AVFrame *out = td->out;                                                                   \

  288.     const int direct = out == in;                                                                   \

  289.     const int step = lut3d->step;                                                                   \

  290.     const uint8_t r = lut3d->rgba_map[R];                                                           \

  291.     const uint8_t g = lut3d->rgba_map[G];                                                           \

  292.     const uint8_t b = lut3d->rgba_map[B];                                                           \

  293.     const uint8_t a = lut3d->rgba_map[A];                                                           \

  294.     const int slice_start = (in->height *  jobnr   ) / nb_jobs;                                     \

  295.     const int slice_end   = (in->height * (jobnr+1)) / nb_jobs;                                     \

  296.     uint8_t       *dstrow = out->data[0] + slice_start * out->linesize[0];                          \

  297.     const uint8_t *srcrow = in ->data[0] + slice_start * in ->linesize[0];                          \

  298.     const float scale = (1. / ((1<<nbits) - 1)) * (lut3d->lutsize - 1);                             \

  299.                                                                                                     \

  300.     for (y = slice_start; y < slice_end; y++) {                                                     \

  301.         uint##nbits##_t *dst = (uint##nbits##_t *)dstrow;                                           \

  302.         const uint##nbits##_t *src = (const uint##nbits##_t *)srcrow;                               \

  303.         for (x = 0; x < in->width * step; x += step) {                                              \

  304.             const struct rgbvec scaled_rgb = {src[x + r] * scale,                                   \

  305.                                               src[x + g] * scale,                                   \

  306.                                               src[x + b] * scale};                                  \

  307.             struct rgbvec vec = interp_##name(lut3d, &scaled_rgb);                                  \

  308.             dst[x + r] = av_clip_uint##nbits(vec.r * (float)((1<<nbits) - 1));                      \

  309.             dst[x + g] = av_clip_uint##nbits(vec.g * (float)((1<<nbits) - 1));                      \

  310.             dst[x + b] = av_clip_uint##nbits(vec.b * (float)((1<<nbits) - 1));                      \

  311.             if (!direct && step == 4)                                                               \

  312.                 dst[x + a] = src[x + a];                                                            \

  313.         }                                                                                           \

  314.         dstrow += out->linesize[0];                                                                 \

  315.         srcrow += in ->linesize[0];                                                                 \

  316.     }                                                                                               \

  317.     return 0;                                                                                       \

  318. }

  319. 

  320. DEFINE_INTERP_FUNC(nearest,     8)

  321. DEFINE_INTERP_FUNC(trilinear,   8)

  322. DEFINE_INTERP_FUNC(tetrahedral, 8)

  323. 

  324. DEFINE_INTERP_FUNC(nearest,     16)

  325. DEFINE_INTERP_FUNC(trilinear,   16)

  326. DEFINE_INTERP_FUNC(tetrahedral, 16)

  327. 

  328. #define MAX_LINE_SIZE 512

  329. 

  330. static int skip_line(const char *p)

  331. {

  332.     while (*p && av_isspace(*p))

  333.         p++;

  334.     return !*p || *p == '#';

  335. }

  336. 

  337. #define NEXT_LINE(loop_cond) do {                           \

  338.     if (!fgets(line, sizeof(line), f)) {                    \

  339.         av_log(ctx, AV_LOG_ERROR, "Unexpected EOF\n");      \

  340.         return AVERROR_INVALIDDATA;                         \

  341.     }                                                       \

  342. } while (loop_cond)

  343. 

  344. /* Basically r g and b float values on each line, with a facultative 3DLUTSIZE

  345.  * directive; seems to be generated by Davinci */

  346. static int parse_dat(AVFilterContext *ctx, FILE *f)

  347. {

  348.     LUT3DContext *lut3d = ctx->priv;

  349.     char line[MAX_LINE_SIZE];

  350.     int i, j, k, size;

  351. 

  352.     lut3d->lutsize = size = 33;

  353. 

  354.     NEXT_LINE(skip_line(line));

  355.     if (!strncmp(line, "3DLUTSIZE ", 10)) {

  356.         size = strtol(line + 10, NULL, 0);

  357.         if (size < 2 || size > MAX_LEVEL) {

  358.             av_log(ctx, AV_LOG_ERROR, "Too large or invalid 3D LUT size\n");

  359.             return AVERROR(EINVAL);

  360.         }

  361.         lut3d->lutsize = size;

  362.         NEXT_LINE(skip_line(line));

  363.     }

  364.     for (k = 0; k < size; k++) {

  365.         for (j = 0; j < size; j++) {

  366.             for (i = 0; i < size; i++) {

  367.                 struct rgbvec *vec = &lut3d->lut[k][j][i];

  368.                 if (k != 0 || j != 0 || i != 0)

  369.                     NEXT_LINE(skip_line(line));

  370.                 if (sscanf(line, "%f %f %f", &vec->r, &vec->g, &vec->b) != 3)

  371.                     return AVERROR_INVALIDDATA;

  372.             }

  373.         }

  374.     }

  375.     return 0;

  376. }

  377. 

  378. /* Iridas format */

  379. static int parse_cube(AVFilterContext *ctx, FILE *f)

  380. {

  381.     LUT3DContext *lut3d = ctx->priv;

  382.     char line[MAX_LINE_SIZE];

  383.     float min[3] = {0.0, 0.0, 0.0};

  384.     float max[3] = {1.0, 1.0, 1.0};

  385. 

  386.     while (fgets(line, sizeof(line), f)) {

  387.         if (!strncmp(line, "LUT_3D_SIZE ", 12)) {

  388.             int i, j, k;

  389.             const int size = strtol(line + 12, NULL, 0);

  390. 

  391.             if (size < 2 || size > MAX_LEVEL) {

  392.                 av_log(ctx, AV_LOG_ERROR, "Too large or invalid 3D LUT size\n");

  393.                 return AVERROR(EINVAL);

  394.             }

  395.             lut3d->lutsize = size;

  396.             for (k = 0; k < size; k++) {

  397.                 for (j = 0; j < size; j++) {

  398.                     for (i = 0; i < size; i++) {

  399.                         struct rgbvec *vec = &lut3d->lut[i][j][k];

  400. 

  401.                         do {

  402. try_again:

  403.                             NEXT_LINE(0);

  404.                             if (!strncmp(line, "DOMAIN_", 7)) {

  405.                                 float *vals = NULL;

  406.                                 if      (!strncmp(line + 7, "MIN ", 4)) vals = min;

  407.                                 else if (!strncmp(line + 7, "MAX ", 4)) vals = max;

  408.                                 if (!vals)

  409.                                     return AVERROR_INVALIDDATA;

  410.                                 sscanf(line + 11, "%f %f %f", vals, vals + 1, vals + 2);

  411.                                 av_log(ctx, AV_LOG_DEBUG, "min: %f %f %f | max: %f %f %f\n",

  412.                                        min[0], min[1], min[2], max[0], max[1], max[2]);

  413.                                 goto try_again;

  414.                             }

  415.                         } while (skip_line(line));

  416.                         if (sscanf(line, "%f %f %f", &vec->r, &vec->g, &vec->b) != 3)

  417.                             return AVERROR_INVALIDDATA;

  418.                         vec->r *= max[0] - min[0];

  419.                         vec->g *= max[1] - min[1];

  420.                         vec->b *= max[2] - min[2];

  421.                     }

  422.                 }

  423.             }

  424.             break;

  425.         }

  426.     }

  427.     return 0;

  428. }

  429. 

  430. /* Assume 17x17x17 LUT with a 16-bit depth

  431.  * FIXME: it seems there are various 3dl formats */

  432. static int parse_3dl(AVFilterContext *ctx, FILE *f)

  433. {

  434.     char line[MAX_LINE_SIZE];

  435.     LUT3DContext *lut3d = ctx->priv;

  436.     int i, j, k;

  437.     const int size = 17;

  438.     const float scale = 16*16*16;

  439. 

  440.     lut3d->lutsize = size;

  441.     NEXT_LINE(skip_line(line));

  442.     for (k = 0; k < size; k++) {

  443.         for (j = 0; j < size; j++) {

  444.             for (i = 0; i < size; i++) {

  445.                 int r, g, b;

  446.                 struct rgbvec *vec = &lut3d->lut[k][j][i];

  447. 

  448.                 NEXT_LINE(skip_line(line));

  449.                 if (sscanf(line, "%d %d %d", &r, &g, &b) != 3)

  450.                     return AVERROR_INVALIDDATA;

  451.                 vec->r = r / scale;

  452.                 vec->g = g / scale;

  453.                 vec->b = b / scale;

  454.             }

  455.         }

  456.     }

  457.     return 0;

  458. }

  459. 

  460. /* Pandora format */

  461. static int parse_m3d(AVFilterContext *ctx, FILE *f)

  462. {

  463.     LUT3DContext *lut3d = ctx->priv;

  464.     float scale;

  465.     int i, j, k, size, in = -1, out = -1;

  466.     char line[MAX_LINE_SIZE];

  467.     uint8_t rgb_map[3] = {0, 1, 2};

  468. 

  469.     while (fgets(line, sizeof(line), f)) {

  470.         if      (!strncmp(line, "in",  2)) in  = strtol(line + 2, NULL, 0);

  471.         else if (!strncmp(line, "out", 3)) out = strtol(line + 3, NULL, 0);

  472.         else if (!strncmp(line, "values", 6)) {

  473.             const char *p = line + 6;

  474. #define SET_COLOR(id) do {                  \

  475.     while (av_isspace(*p))                  \

  476.         p++;                                \

  477.     switch (*p) {                           \

  478.     case 'r': rgb_map[id] = 0; break;       \

  479.     case 'g': rgb_map[id] = 1; break;       \

  480.     case 'b': rgb_map[id] = 2; break;       \

  481.     }                                       \

  482.     while (*p && !av_isspace(*p))           \

  483.         p++;                                \

  484. } while (0)

  485.             SET_COLOR(0);

  486.             SET_COLOR(1);

  487.             SET_COLOR(2);

  488.             break;

  489.         }

  490.     }

  491. 

  492.     if (in == -1 || out == -1) {

  493.         av_log(ctx, AV_LOG_ERROR, "in and out must be defined\n");

  494.         return AVERROR_INVALIDDATA;

  495.     }

  496.     if (in < 2 || out < 2 ||

  497.         in  > MAX_LEVEL*MAX_LEVEL*MAX_LEVEL ||

  498.         out > MAX_LEVEL*MAX_LEVEL*MAX_LEVEL) {

  499.         av_log(ctx, AV_LOG_ERROR, "invalid in (%d) or out (%d)\n", in, out);

  500.         return AVERROR_INVALIDDATA;

  501.     }

  502.     for (size = 1; size*size*size < in; size++);

  503.     lut3d->lutsize = size;

  504.     scale = 1. / (out - 1);

  505. 

  506.     for (k = 0; k < size; k++) {

  507.         for (j = 0; j < size; j++) {

  508.             for (i = 0; i < size; i++) {

  509.                 struct rgbvec *vec = &lut3d->lut[k][j][i];

  510.                 float val[3];

  511. 

  512.                 NEXT_LINE(0);

  513.                 if (sscanf(line, "%f %f %f", val, val + 1, val + 2) != 3)

  514.                     return AVERROR_INVALIDDATA;

  515.                 vec->r = val[rgb_map[0]] * scale;

  516.                 vec->g = val[rgb_map[1]] * scale;

  517.                 vec->b = val[rgb_map[2]] * scale;

  518.             }

  519.         }

  520.     }

  521.     return 0;

  522. }

  523. 

  524. static void set_identity_matrix(LUT3DContext *lut3d, int size)

  525. {

  526.     int i, j, k;

  527.     const float c = 1. / (size - 1);

  528. 

  529.     lut3d->lutsize = size;

  530.     for (k = 0; k < size; k++) {

  531.         for (j = 0; j < size; j++) {

  532.             for (i = 0; i < size; i++) {

  533.                 struct rgbvec *vec = &lut3d->lut[k][j][i];

  534.                 vec->r = k * c;

  535.                 vec->g = j * c;

  536.                 vec->b = i * c;

  537.             }

  538.         }

  539.     }

  540. }

  541. 

  542. static int query_formats(AVFilterContext *ctx)

  543. {

  544.     static const enum AVPixelFormat pix_fmts[] = {

  545.         AV_PIX_FMT_RGB24,  AV_PIX_FMT_BGR24,

  546.         AV_PIX_FMT_RGBA,   AV_PIX_FMT_BGRA,

  547.         AV_PIX_FMT_ARGB,   AV_PIX_FMT_ABGR,

  548.         AV_PIX_FMT_0RGB,   AV_PIX_FMT_0BGR,

  549.         AV_PIX_FMT_RGB0,   AV_PIX_FMT_BGR0,

  550.         AV_PIX_FMT_RGB48,  AV_PIX_FMT_BGR48,

  551.         AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64,

  552.         AV_PIX_FMT_GBRP,   AV_PIX_FMT_GBRAP,

  553.         AV_PIX_FMT_GBRP9,

  554.         AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10,

  555.         AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12,

  556.         AV_PIX_FMT_GBRP14,

  557.         AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16,

  558.         AV_PIX_FMT_NONE

  559.     };

  560.     AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);

  561.     if (!fmts_list)

  562.         return AVERROR(ENOMEM);

  563.     return ff_set_common_formats(ctx, fmts_list);

  564. }

  565. 

  566. static int config_input(AVFilterLink *inlink)

  567. {

  568.     int depth, is16bit = 0, planar = 0;

  569.     LUT3DContext *lut3d = inlink->dst->priv;

  570.     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);

  571. 

  572.     depth = desc->comp[0].depth;

  573. 

  574.     switch (inlink->format) {

  575.     case AV_PIX_FMT_RGB48:

  576.     case AV_PIX_FMT_BGR48:

  577.     case AV_PIX_FMT_RGBA64:

  578.     case AV_PIX_FMT_BGRA64:

  579.         is16bit = 1;

  580.         break;

  581.     case AV_PIX_FMT_GBRP9:

  582.     case AV_PIX_FMT_GBRP10:

  583.     case AV_PIX_FMT_GBRP12:

  584.     case AV_PIX_FMT_GBRP14:

  585.     case AV_PIX_FMT_GBRP16:

  586.     case AV_PIX_FMT_GBRAP10:

  587.     case AV_PIX_FMT_GBRAP12:

  588.     case AV_PIX_FMT_GBRAP16:

  589.         is16bit = 1;

  590.     case AV_PIX_FMT_GBRP:

  591.     case AV_PIX_FMT_GBRAP:

  592.         planar = 1;

  593.         break;

  594.     }

  595. 

  596.     ff_fill_rgba_map(lut3d->rgba_map, inlink->format);

  597.     lut3d->step = av_get_padded_bits_per_pixel(desc) >> (3 + is16bit);

  598. 

  599. #define SET_FUNC(name) do {                                     \

  600.     if (planar) {                                               \

  601.         switch (depth) {                                        \

  602.         case  8: lut3d->interp = interp_8_##name##_p8;   break; \

  603.         case  9: lut3d->interp = interp_16_##name##_p9;  break; \

  604.         case 10: lut3d->interp = interp_16_##name##_p10; break; \

  605.         case 12: lut3d->interp = interp_16_##name##_p12; break; \

  606.         case 14: lut3d->interp = interp_16_##name##_p14; break; \

  607.         case 16: lut3d->interp = interp_16_##name##_p16; break; \

  608.         }                                                       \

  609.     } else if (is16bit) { lut3d->interp = interp_16_##name;     \

  610.     } else {       lut3d->interp = interp_8_##name; }           \

  611. } while (0)

  612. 

  613.     switch (lut3d->interpolation) {

  614.     case INTERPOLATE_NEAREST:     SET_FUNC(nearest);        break;

  615.     case INTERPOLATE_TRILINEAR:   SET_FUNC(trilinear);      break;

  616.     case INTERPOLATE_TETRAHEDRAL: SET_FUNC(tetrahedral);    break;

  617.     default:

  618.         av_assert0(0);

  619.     }

  620. 

  621.     return 0;

  622. }

  623. 

  624. static AVFrame *apply_lut(AVFilterLink *inlink, AVFrame *in)

  625. {

  626.     AVFilterContext *ctx = inlink->dst;

  627.     LUT3DContext *lut3d = ctx->priv;

  628.     AVFilterLink *outlink = inlink->dst->outputs[0];

  629.     AVFrame *out;

  630.     ThreadData td;

  631. 

  632.     if (av_frame_is_writable(in)) {

  633.         out = in;

  634.     } else {

  635.         out = ff_get_video_buffer(outlink, outlink->w, outlink->h);

  636.         if (!out) {

  637.             av_frame_free(&in);

  638.             return NULL;

  639.         }

  640.         av_frame_copy_props(out, in);

  641.     }

  642. 

  643.     td.in  = in;

  644.     td.out = out;

  645.     ctx->internal->execute(ctx, lut3d->interp, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));

  646. 

  647.     if (out != in)

  648.         av_frame_free(&in);

  649. 

  650.     return out;

  651. }

  652. 

  653. static int filter_frame(AVFilterLink *inlink, AVFrame *in)

  654. {

  655.     AVFilterLink *outlink = inlink->dst->outputs[0];

  656.     AVFrame *out = apply_lut(inlink, in);

  657.     if (!out)

  658.         return AVERROR(ENOMEM);

  659.     return ff_filter_frame(outlink, out);

  660. }

  661. 

  662. #if CONFIG_LUT3D_FILTER

  663. static const AVOption lut3d_options[] = {

  664.     { "file", "set 3D LUT file name", OFFSET(file), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },

  665.     COMMON_OPTIONS

  666. };

  667. 

  668. AVFILTER_DEFINE_CLASS(lut3d);

  669. 

  670. static av_cold int lut3d_init(AVFilterContext *ctx)

  671. {

  672.     int ret;

  673.     FILE *f;

  674.     const char *ext;

  675.     LUT3DContext *lut3d = ctx->priv;

  676. 

  677.     if (!lut3d->file) {

  678.         set_identity_matrix(lut3d, 32);

  679.         return 0;

  680.     }

  681. 

  682.     f = fopen(lut3d->file, "r");

  683.     if (!f) {

  684.         ret = AVERROR(errno);

  685.         av_log(ctx, AV_LOG_ERROR, "%s: %s\n", lut3d->file, av_err2str(ret));

  686.         return ret;

  687.     }

  688. 

  689.     ext = strrchr(lut3d->file, '.');

  690.     if (!ext) {

  691.         av_log(ctx, AV_LOG_ERROR, "Unable to guess the format from the extension\n");

  692.         ret = AVERROR_INVALIDDATA;

  693.         goto end;

  694.     }

  695.     ext++;

  696. 

  697.     if (!av_strcasecmp(ext, "dat")) {

  698.         ret = parse_dat(ctx, f);

  699.     } else if (!av_strcasecmp(ext, "3dl")) {

  700.         ret = parse_3dl(ctx, f);

  701.     } else if (!av_strcasecmp(ext, "cube")) {

  702.         ret = parse_cube(ctx, f);

  703.     } else if (!av_strcasecmp(ext, "m3d")) {

  704.         ret = parse_m3d(ctx, f);

  705.     } else {

  706.         av_log(ctx, AV_LOG_ERROR, "Unrecognized '.%s' file type\n", ext);

  707.         ret = AVERROR(EINVAL);

  708.     }

  709. 

  710.     if (!ret && !lut3d->lutsize) {

  711.         av_log(ctx, AV_LOG_ERROR, "3D LUT is empty\n");

  712.         ret = AVERROR_INVALIDDATA;

  713.     }

  714. 

  715. end:

  716.     fclose(f);

  717.     return ret;

  718. }

  719. 

  720. static const AVFilterPad lut3d_inputs[] = {

  721.     {

  722.         .name         = "default",

  723.         .type         = AVMEDIA_TYPE_VIDEO,

  724.         .filter_frame = filter_frame,

  725.         .config_props = config_input,

  726.     },

  727.     { NULL }

  728. };

  729. 

  730. static const AVFilterPad lut3d_outputs[] = {

  731.     {

  732.         .name = "default",

  733.         .type = AVMEDIA_TYPE_VIDEO,

  734.     },

  735.     { NULL }

  736. };

  737. 

  738. AVFilter ff_vf_lut3d = {

  739.     .name          = "lut3d",

  740.     .description   = NULL_IF_CONFIG_SMALL("Adjust colors using a 3D LUT."),

  741.     .priv_size     = sizeof(LUT3DContext),

  742.     .init          = lut3d_init,

  743.     .query_formats = query_formats,

  744.     .inputs        = lut3d_inputs,

  745.     .outputs       = lut3d_outputs,

  746.     .priv_class    = &lut3d_class,

  747.     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,

  748. };

  749. #endif

  750. 

  751. #if CONFIG_HALDCLUT_FILTER

  752. 

  753. static void update_clut_packed(LUT3DContext *lut3d, const AVFrame *frame)

  754. {

  755.     const uint8_t *data = frame->data[0];

  756.     const int linesize  = frame->linesize[0];

  757.     const int w = lut3d->clut_width;

  758.     const int step = lut3d->clut_step;

  759.     const uint8_t *rgba_map = lut3d->clut_rgba_map;

  760.     const int level = lut3d->lutsize;

  761. 

  762. #define LOAD_CLUT(nbits) do {                                           \

  763.     int i, j, k, x = 0, y = 0;                                          \

  764.                                                                         \

  765.     for (k = 0; k < level; k++) {                                       \

  766.         for (j = 0; j < level; j++) {                                   \

  767.             for (i = 0; i < level; i++) {                               \

  768.                 const uint##nbits##_t *src = (const uint##nbits##_t *)  \

  769.                     (data + y*linesize + x*step);                       \

  770.                 struct rgbvec *vec = &lut3d->lut[i][j][k];              \

  771.                 vec->r = src[rgba_map[0]] / (float)((1<<(nbits)) - 1);  \

  772.                 vec->g = src[rgba_map[1]] / (float)((1<<(nbits)) - 1);  \

  773.                 vec->b = src[rgba_map[2]] / (float)((1<<(nbits)) - 1);  \

  774.                 if (++x == w) {                                         \

  775.                     x = 0;                                              \

  776.                     y++;                                                \

  777.                 }                                                       \

  778.             }                                                           \

  779.         }                                                               \

  780.     }                                                                   \

  781. } while (0)

  782. 

  783.     switch (lut3d->clut_bits) {

  784.     case  8: LOAD_CLUT(8);  break;

  785.     case 16: LOAD_CLUT(16); break;

  786.     }

  787. }

  788. 

  789. static void update_clut_planar(LUT3DContext *lut3d, const AVFrame *frame)

  790. {

  791.     const uint8_t *datag = frame->data[0];

  792.     const uint8_t *datab = frame->data[1];

  793.     const uint8_t *datar = frame->data[2];

  794.     const int glinesize  = frame->linesize[0];

  795.     const int blinesize  = frame->linesize[1];

  796.     const int rlinesize  = frame->linesize[2];

  797.     const int w = lut3d->clut_width;

  798.     const int level = lut3d->lutsize;

  799. 

  800. #define LOAD_CLUT_PLANAR(nbits, depth) do {                             \

  801.     int i, j, k, x = 0, y = 0;                                          \

  802.                                                                         \

  803.     for (k = 0; k < level; k++) {                                       \

  804.         for (j = 0; j < level; j++) {                                   \

  805.             for (i = 0; i < level; i++) {                               \

  806.                 const uint##nbits##_t *gsrc = (const uint##nbits##_t *) \

  807.                     (datag + y*glinesize);                              \

  808.                 const uint##nbits##_t *bsrc = (const uint##nbits##_t *) \

  809.                     (datab + y*blinesize);                              \

  810.                 const uint##nbits##_t *rsrc = (const uint##nbits##_t *) \

  811.                     (datar + y*rlinesize);                              \

  812.                 struct rgbvec *vec = &lut3d->lut[i][j][k];              \

  813.                 vec->r = gsrc[x] / (float)((1<<(depth)) - 1);           \

  814.                 vec->g = bsrc[x] / (float)((1<<(depth)) - 1);           \

  815.                 vec->b = rsrc[x] / (float)((1<<(depth)) - 1);           \

  816.                 if (++x == w) {                                         \

  817.                     x = 0;                                              \

  818.                     y++;                                                \

  819.                 }                                                       \

  820.             }                                                           \

  821.         }                                                               \

  822.     }                                                                   \

  823. } while (0)

  824. 

  825.     switch (lut3d->clut_bits) {

  826.     case  8: LOAD_CLUT_PLANAR(8, 8);   break;

  827.     case  9: LOAD_CLUT_PLANAR(16, 9);  break;

  828.     case 10: LOAD_CLUT_PLANAR(16, 10); break;

  829.     case 12: LOAD_CLUT_PLANAR(16, 12); break;

  830.     case 14: LOAD_CLUT_PLANAR(16, 14); break;

  831.     case 16: LOAD_CLUT_PLANAR(16, 16); break;

  832.     }

  833. }

  834. 

  835. static int config_output(AVFilterLink *outlink)

  836. {

  837.     AVFilterContext *ctx = outlink->src;

  838.     LUT3DContext *lut3d = ctx->priv;

  839.     int ret;

  840. 

  841.     ret = ff_framesync_init_dualinput(&lut3d->fs, ctx);

  842.     if (ret < 0)

  843.         return ret;

  844.     outlink->w = ctx->inputs[0]->w;

  845.     outlink->h = ctx->inputs[0]->h;

  846.     outlink->time_base = ctx->inputs[0]->time_base;

  847.     if ((ret = ff_framesync_configure(&lut3d->fs)) < 0)

  848.         return ret;

  849.     return 0;

  850. }

  851. 

  852. static int activate(AVFilterContext *ctx)

  853. {

  854.     LUT3DContext *s = ctx->priv;

  855.     return ff_framesync_activate(&s->fs);

  856. }

  857. 

  858. static int config_clut(AVFilterLink *inlink)

  859. {

  860.     int size, level, w, h;

  861.     AVFilterContext *ctx = inlink->dst;

  862.     LUT3DContext *lut3d = ctx->priv;

  863.     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);

  864. 

  865.     av_assert0(desc);

  866. 

  867.     lut3d->clut_bits = desc->comp[0].depth;

  868.     lut3d->clut_planar = av_pix_fmt_count_planes(inlink->format) > 1;

  869. 

  870.     lut3d->clut_step = av_get_padded_bits_per_pixel(desc) >> 3;

  871.     ff_fill_rgba_map(lut3d->clut_rgba_map, inlink->format);

  872. 

  873.     if (inlink->w > inlink->h)

  874.         av_log(ctx, AV_LOG_INFO, "Padding on the right (%dpx) of the "

  875.                "Hald CLUT will be ignored\n", inlink->w - inlink->h);

  876.     else if (inlink->w < inlink->h)

  877.         av_log(ctx, AV_LOG_INFO, "Padding at the bottom (%dpx) of the "

  878.                "Hald CLUT will be ignored\n", inlink->h - inlink->w);

  879.     lut3d->clut_width = w = h = FFMIN(inlink->w, inlink->h);

  880. 

  881.     for (level = 1; level*level*level < w; level++);

  882.     size = level*level*level;

  883.     if (size != w) {

  884.         av_log(ctx, AV_LOG_WARNING, "The Hald CLUT width does not match the level\n");

  885.         return AVERROR_INVALIDDATA;

  886.     }

  887.     av_assert0(w == h && w == size);

  888.     level *= level;

  889.     if (level > MAX_LEVEL) {

  890.         const int max_clut_level = sqrt(MAX_LEVEL);

  891.         const int max_clut_size  = max_clut_level*max_clut_level*max_clut_level;

  892.         av_log(ctx, AV_LOG_ERROR, "Too large Hald CLUT "

  893.                "(maximum level is %d, or %dx%d CLUT)\n",

  894.                max_clut_level, max_clut_size, max_clut_size);

  895.         return AVERROR(EINVAL);

  896.     }

  897.     lut3d->lutsize = level;

  898. 

  899.     return 0;

  900. }

  901. 

  902. static int update_apply_clut(FFFrameSync *fs)

  903. {

  904.     AVFilterContext *ctx = fs->parent;

  905.     LUT3DContext *lut3d = ctx->priv;

  906.     AVFilterLink *inlink = ctx->inputs[0];

  907.     AVFrame *master, *second, *out;

  908.     int ret;

  909. 

  910.     ret = ff_framesync_dualinput_get(fs, &master, &second);

  911.     if (ret < 0)

  912.         return ret;

  913.     if (!second)

  914.         return ff_filter_frame(ctx->outputs[0], master);

  915.     if (lut3d->clut_planar)

  916.         update_clut_planar(ctx->priv, second);

  917.     else

  918.         update_clut_packed(ctx->priv, second);

  919.     out = apply_lut(inlink, master);

  920.     return ff_filter_frame(ctx->outputs[0], out);

  921. }

  922. 

  923. static av_cold int haldclut_init(AVFilterContext *ctx)

  924. {

  925.     LUT3DContext *lut3d = ctx->priv;

  926.     lut3d->fs.on_event = update_apply_clut;

  927.     return 0;

  928. }

  929. 

  930. static av_cold void haldclut_uninit(AVFilterContext *ctx)

  931. {

  932.     LUT3DContext *lut3d = ctx->priv;

  933.     ff_framesync_uninit(&lut3d->fs);

  934. }

  935. 

  936. static const AVOption haldclut_options[] = {

  937.     COMMON_OPTIONS

  938. };

  939. 

  940. FRAMESYNC_DEFINE_CLASS(haldclut, LUT3DContext, fs);

  941. 

  942. static const AVFilterPad haldclut_inputs[] = {

  943.     {

  944.         .name         = "main",

  945.         .type         = AVMEDIA_TYPE_VIDEO,

  946.         .config_props = config_input,

  947.     },{

  948.         .name         = "clut",

  949.         .type         = AVMEDIA_TYPE_VIDEO,

  950.         .config_props = config_clut,

  951.     },

  952.     { NULL }

  953. };

  954. 

  955. static const AVFilterPad haldclut_outputs[] = {

  956.     {

  957.         .name          = "default",

  958.         .type          = AVMEDIA_TYPE_VIDEO,

  959.         .config_props  = config_output,

  960.     },

  961.     { NULL }

  962. };

  963. 

  964. AVFilter ff_vf_haldclut = {

  965.     .name          = "haldclut",

  966.     .description   = NULL_IF_CONFIG_SMALL("Adjust colors using a Hald CLUT."),

  967.     .priv_size     = sizeof(LUT3DContext),

  968.     .preinit       = haldclut_framesync_preinit,

  969.     .init          = haldclut_init,

  970.     .uninit        = haldclut_uninit,

  971.     .query_formats = query_formats,

  972.     .activate      = activate,

  973.     .inputs        = haldclut_inputs,

  974.     .outputs       = haldclut_outputs,

  975.     .priv_class    = &haldclut_class,

  976.     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,

  977. };

  978. #endif

  979. 

  980. #if CONFIG_LUT1D_FILTER

  981. 

  982. enum interp_1d_mode {

  983.     INTERPOLATE_1D_NEAREST,

  984.     INTERPOLATE_1D_LINEAR,

  985.     INTERPOLATE_1D_CUBIC,

  986.     NB_INTERP_1D_MODE

  987. };

  988. 

  989. #define MAX_1D_LEVEL 65536

  990. 

  991. typedef struct LUT1DContext {

  992.     const AVClass *class;

  993.     char *file;

  994.     int interpolation;          ///<interp_1d_mode

  995.     uint8_t rgba_map[4];

  996.     int step;

  997.     float lut[3][MAX_1D_LEVEL];

  998.     int lutsize;

  999.     avfilter_action_func *interp;

  1000. } LUT1DContext;

  1001. 

  1002. #undef OFFSET

  1003. #define OFFSET(x) offsetof(LUT1DContext, x)

  1004. 

  1005. static void set_identity_matrix_1d(LUT1DContext *lut1d, int size)

  1006. {

  1007.     const float c = 1. / (size - 1);

  1008.     int i;

  1009. 

  1010.     lut1d->lutsize = size;

  1011.     for (i = 0; i < size; i++) {

  1012.         lut1d->lut[0][i] = i * c;

  1013.         lut1d->lut[1][i] = i * c;

  1014.         lut1d->lut[2][i] = i * c;

  1015.     }

  1016. }

  1017. 

  1018. static int parse_cube_1d(AVFilterContext *ctx, FILE *f)

  1019. {

  1020.     LUT1DContext *lut1d = ctx->priv;

  1021.     char line[MAX_LINE_SIZE];

  1022.     float min[3] = {0.0, 0.0, 0.0};

  1023.     float max[3] = {1.0, 1.0, 1.0};

  1024. 

  1025.     while (fgets(line, sizeof(line), f)) {

  1026.         if (!strncmp(line, "LUT_1D_SIZE ", 12)) {

  1027.             const int size = strtol(line + 12, NULL, 0);

  1028.             int i;

  1029. 

  1030.             if (size < 2 || size > MAX_1D_LEVEL) {

  1031.                 av_log(ctx, AV_LOG_ERROR, "Too large or invalid 1D LUT size\n");

  1032.                 return AVERROR(EINVAL);

  1033.             }

  1034.             lut1d->lutsize = size;

  1035.             for (i = 0; i < size; i++) {

  1036.                 do {

  1037. try_again:

  1038.                     NEXT_LINE(0);

  1039.                     if (!strncmp(line, "DOMAIN_", 7)) {

  1040.                         float *vals = NULL;

  1041.                         if      (!strncmp(line + 7, "MIN ", 4)) vals = min;

  1042.                         else if (!strncmp(line + 7, "MAX ", 4)) vals = max;

  1043.                         if (!vals)

  1044.                             return AVERROR_INVALIDDATA;

  1045.                         sscanf(line + 11, "%f %f %f", vals, vals + 1, vals + 2);

  1046.                         av_log(ctx, AV_LOG_DEBUG, "min: %f %f %f | max: %f %f %f\n",

  1047.                                min[0], min[1], min[2], max[0], max[1], max[2]);

  1048.                         goto try_again;

  1049.                     } else if (!strncmp(line, "LUT_1D_INPUT_RANGE ", 19)) {

  1050.                         sscanf(line + 19, "%f %f", min, max);

  1051.                         min[1] = min[2] = min[0];

  1052.                         max[1] = max[2] = max[0];

  1053.                         goto try_again;

  1054.                     }

  1055.                 } while (skip_line(line));

  1056.                 if (sscanf(line, "%f %f %f", &lut1d->lut[0][i], &lut1d->lut[1][i], &lut1d->lut[2][i]) != 3)

  1057.                     return AVERROR_INVALIDDATA;

  1058.                 lut1d->lut[0][i] *= max[0] - min[0];

  1059.                 lut1d->lut[1][i] *= max[1] - min[1];

  1060.                 lut1d->lut[2][i] *= max[2] - min[2];

  1061.             }

  1062.             break;

  1063.         }

  1064.     }

  1065.     return 0;

  1066. }

  1067. 

  1068. static const AVOption lut1d_options[] = {

  1069.     { "file", "set 1D LUT file name", OFFSET(file), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },

  1070.     { "interp", "select interpolation mode", OFFSET(interpolation),    AV_OPT_TYPE_INT, {.i64=INTERPOLATE_1D_LINEAR}, 0, NB_INTERP_1D_MODE-1, FLAGS, "interp_mode" },

  1071.         { "nearest", "use values from the nearest defined points", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_NEAREST},   INT_MIN, INT_MAX, FLAGS, "interp_mode" },

  1072.         { "linear",  "use values from the linear interpolation",   0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_LINEAR},    INT_MIN, INT_MAX, FLAGS, "interp_mode" },

  1073.         { "cubic",   "use values from the cubic interpolation",    0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_CUBIC},     INT_MIN, INT_MAX, FLAGS, "interp_mode" },

  1074.     { NULL }

  1075. };

  1076. 

  1077. AVFILTER_DEFINE_CLASS(lut1d);

  1078. 

  1079. static inline float interp_1d_nearest(const LUT1DContext *lut1d,

  1080.                                       int idx, const float s)

  1081. {

  1082.     return lut1d->lut[idx][NEAR(s)];

  1083. }

  1084. 

  1085. #define NEXT1D(x) (FFMIN((int)(x) + 1, lut1d->lutsize - 1))

  1086. 

  1087. static inline float interp_1d_linear(const LUT1DContext *lut1d,

  1088.                                      int idx, const float s)

  1089. {

  1090.     const int prev = PREV(s);

  1091.     const int next = NEXT1D(s);

  1092.     const float d = s - prev;

  1093.     const float p = lut1d->lut[idx][prev];

  1094.     const float n = lut1d->lut[idx][next];

  1095. 

  1096.     return lerpf(p, n, d);

  1097. }

  1098. 

  1099. static inline float interp_1d_cubic(const LUT1DContext *lut1d,

  1100.                                     int idx, const float s)

  1101. {

  1102.     const int prev = PREV(s);

  1103.     const int next = NEXT1D(s);

  1104.     const float mu = s - prev;

  1105.     float a0, a1, a2, a3, mu2;

  1106. 

  1107.     float y0 = lut1d->lut[idx][FFMAX(prev - 1, 0)];

  1108.     float y1 = lut1d->lut[idx][prev];

  1109.     float y2 = lut1d->lut[idx][next];

  1110.     float y3 = lut1d->lut[idx][FFMIN(next + 1, lut1d->lutsize - 1)];

  1111. 

  1112. 

  1113.     mu2 = mu * mu;

  1114.     a0 = y3 - y2 - y0 + y1;

  1115.     a1 = y0 - y1 - a0;

  1116.     a2 = y2 - y0;

  1117.     a3 = y1;

  1118. 

  1119.     return a0 * mu * mu2 + a1 * mu2 + a2 * mu + a3;

  1120. }

  1121. 

  1122. #define DEFINE_INTERP_FUNC_PLANAR_1D(name, nbits, depth)                     \

  1123. static int interp_1d_##nbits##_##name##_p##depth(AVFilterContext *ctx,       \

  1124.                                                  void *arg, int jobnr,       \

  1125.                                                  int nb_jobs)                \

  1126. {                                                                            \

  1127.     int x, y;                                                                \

  1128.     const LUT1DContext *lut1d = ctx->priv;                                   \

  1129.     const ThreadData *td = arg;                                              \

  1130.     const AVFrame *in  = td->in;                                             \

  1131.     const AVFrame *out = td->out;                                            \

  1132.     const int direct = out == in;                                            \

  1133.     const int slice_start = (in->height *  jobnr   ) / nb_jobs;              \

  1134.     const int slice_end   = (in->height * (jobnr+1)) / nb_jobs;              \

  1135.     uint8_t *grow = out->data[0] + slice_start * out->linesize[0];           \

  1136.     uint8_t *brow = out->data[1] + slice_start * out->linesize[1];           \

  1137.     uint8_t *rrow = out->data[2] + slice_start * out->linesize[2];           \

  1138.     uint8_t *arow = out->data[3] + slice_start * out->linesize[3];           \

  1139.     const uint8_t *srcgrow = in->data[0] + slice_start * in->linesize[0];    \

  1140.     const uint8_t *srcbrow = in->data[1] + slice_start * in->linesize[1];    \

  1141.     const uint8_t *srcrrow = in->data[2] + slice_start * in->linesize[2];    \

  1142.     const uint8_t *srcarow = in->data[3] + slice_start * in->linesize[3];    \

  1143.     const float factor = (1 << depth) - 1;                                   \

  1144.     const float scale = (1. / factor) * (lut1d->lutsize - 1);                \

  1145.                                                                              \

  1146.     for (y = slice_start; y < slice_end; y++) {                              \

  1147.         uint##nbits##_t *dstg = (uint##nbits##_t *)grow;                     \

  1148.         uint##nbits##_t *dstb = (uint##nbits##_t *)brow;                     \

  1149.         uint##nbits##_t *dstr = (uint##nbits##_t *)rrow;                     \

  1150.         uint##nbits##_t *dsta = (uint##nbits##_t *)arow;                     \

  1151.         const uint##nbits##_t *srcg = (const uint##nbits##_t *)srcgrow;      \

  1152.         const uint##nbits##_t *srcb = (const uint##nbits##_t *)srcbrow;      \

  1153.         const uint##nbits##_t *srcr = (const uint##nbits##_t *)srcrrow;      \

  1154.         const uint##nbits##_t *srca = (const uint##nbits##_t *)srcarow;      \

  1155.         for (x = 0; x < in->width; x++) {                                    \

  1156.             float r = srcr[x] * scale;                                       \

  1157.             float g = srcg[x] * scale;                                       \

  1158.             float b = srcb[x] * scale;                                       \

  1159.             r = interp_1d_##name(lut1d, 0, r);                               \

  1160.             g = interp_1d_##name(lut1d, 1, g);                               \

  1161.             b = interp_1d_##name(lut1d, 2, b);                               \

  1162.             dstr[x] = av_clip_uintp2(r * factor, depth);                     \

  1163.             dstg[x] = av_clip_uintp2(g * factor, depth);                     \

  1164.             dstb[x] = av_clip_uintp2(b * factor, depth);                     \

  1165.             if (!direct && in->linesize[3])                                  \

  1166.                 dsta[x] = srca[x];                                           \

  1167.         }                                                                    \

  1168.         grow += out->linesize[0];                                            \

  1169.         brow += out->linesize[1];                                            \

  1170.         rrow += out->linesize[2];                                            \

  1171.         arow += out->linesize[3];                                            \

  1172.         srcgrow += in->linesize[0];                                          \

  1173.         srcbrow += in->linesize[1];                                          \

  1174.         srcrrow += in->linesize[2];                                          \

  1175.         srcarow += in->linesize[3];                                          \

  1176.     }                                                                        \

  1177.     return 0;                                                                \

  1178. }

  1179. 

  1180. DEFINE_INTERP_FUNC_PLANAR_1D(nearest,     8, 8)

  1181. DEFINE_INTERP_FUNC_PLANAR_1D(linear,      8, 8)

  1182. DEFINE_INTERP_FUNC_PLANAR_1D(cubic,       8, 8)

  1183. 

  1184. DEFINE_INTERP_FUNC_PLANAR_1D(nearest,     16, 9)

  1185. DEFINE_INTERP_FUNC_PLANAR_1D(linear,      16, 9)

  1186. DEFINE_INTERP_FUNC_PLANAR_1D(cubic,       16, 9)

  1187. 

  1188. DEFINE_INTERP_FUNC_PLANAR_1D(nearest,     16, 10)

  1189. DEFINE_INTERP_FUNC_PLANAR_1D(linear,      16, 10)

  1190. DEFINE_INTERP_FUNC_PLANAR_1D(cubic,       16, 10)

  1191. 

  1192. DEFINE_INTERP_FUNC_PLANAR_1D(nearest,     16, 12)

  1193. DEFINE_INTERP_FUNC_PLANAR_1D(linear,      16, 12)

  1194. DEFINE_INTERP_FUNC_PLANAR_1D(cubic,       16, 12)

  1195. 

  1196. DEFINE_INTERP_FUNC_PLANAR_1D(nearest,     16, 14)

  1197. DEFINE_INTERP_FUNC_PLANAR_1D(linear,      16, 14)

  1198. DEFINE_INTERP_FUNC_PLANAR_1D(cubic,       16, 14)

  1199. 

  1200. DEFINE_INTERP_FUNC_PLANAR_1D(nearest,     16, 16)

  1201. DEFINE_INTERP_FUNC_PLANAR_1D(linear,      16, 16)

  1202. DEFINE_INTERP_FUNC_PLANAR_1D(cubic,       16, 16)

  1203. 

  1204. #define DEFINE_INTERP_FUNC_1D(name, nbits)                                   \

  1205. static int interp_1d_##nbits##_##name(AVFilterContext *ctx, void *arg,       \

  1206.                                       int jobnr, int nb_jobs)                \

  1207. {                                                                            \

  1208.     int x, y;                                                                \

  1209.     const LUT1DContext *lut1d = ctx->priv;                                   \

  1210.     const ThreadData *td = arg;                                              \

  1211.     const AVFrame *in  = td->in;                                             \

  1212.     const AVFrame *out = td->out;                                            \

  1213.     const int direct = out == in;                                            \

  1214.     const int step = lut1d->step;                                            \

  1215.     const uint8_t r = lut1d->rgba_map[R];                                    \

  1216.     const uint8_t g = lut1d->rgba_map[G];                                    \

  1217.     const uint8_t b = lut1d->rgba_map[B];                                    \

  1218.     const uint8_t a = lut1d->rgba_map[A];                                    \

  1219.     const int slice_start = (in->height *  jobnr   ) / nb_jobs;              \

  1220.     const int slice_end   = (in->height * (jobnr+1)) / nb_jobs;              \

  1221.     uint8_t       *dstrow = out->data[0] + slice_start * out->linesize[0];   \

  1222.     const uint8_t *srcrow = in ->data[0] + slice_start * in ->linesize[0];   \

  1223.     const float factor = (1 << nbits) - 1;                                   \

  1224.     const float scale = (1. / factor) * (lut1d->lutsize - 1);                \

  1225.                                                                              \

  1226.     for (y = slice_start; y < slice_end; y++) {                              \

  1227.         uint##nbits##_t *dst = (uint##nbits##_t *)dstrow;                    \

  1228.         const uint##nbits##_t *src = (const uint##nbits##_t *)srcrow;        \

  1229.         for (x = 0; x < in->width * step; x += step) {                       \

  1230.             float rr = src[x + r] * scale;                                   \

  1231.             float gg = src[x + g] * scale;                                   \

  1232.             float bb = src[x + b] * scale;                                   \

  1233.             rr = interp_1d_##name(lut1d, 0, rr);                             \

  1234.             gg = interp_1d_##name(lut1d, 1, gg);                             \

  1235.             bb = interp_1d_##name(lut1d, 2, bb);                             \

  1236.             dst[x + r] = av_clip_uint##nbits(rr * factor);                   \

  1237.             dst[x + g] = av_clip_uint##nbits(gg * factor);                   \

  1238.             dst[x + b] = av_clip_uint##nbits(bb * factor);                   \

  1239.             if (!direct && step == 4)                                        \

  1240.                 dst[x + a] = src[x + a];                                     \

  1241.         }                                                                    \

  1242.         dstrow += out->linesize[0];                                          \

  1243.         srcrow += in ->linesize[0];                                          \

  1244.     }                                                                        \

  1245.     return 0;                                                                \

  1246. }

  1247. 

  1248. DEFINE_INTERP_FUNC_1D(nearest,     8)

  1249. DEFINE_INTERP_FUNC_1D(linear,      8)

  1250. DEFINE_INTERP_FUNC_1D(cubic,       8)

  1251. 

  1252. DEFINE_INTERP_FUNC_1D(nearest,     16)

  1253. DEFINE_INTERP_FUNC_1D(linear,      16)

  1254. DEFINE_INTERP_FUNC_1D(cubic,       16)

  1255. 

  1256. static int config_input_1d(AVFilterLink *inlink)

  1257. {

  1258.     int depth, is16bit = 0, planar = 0;

  1259.     LUT1DContext *lut1d = inlink->dst->priv;

  1260.     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);

  1261. 

  1262.     depth = desc->comp[0].depth;

  1263. 

  1264.     switch (inlink->format) {

  1265.     case AV_PIX_FMT_RGB48:

  1266.     case AV_PIX_FMT_BGR48:

  1267.     case AV_PIX_FMT_RGBA64:

  1268.     case AV_PIX_FMT_BGRA64:

  1269.         is16bit = 1;

  1270.         break;

  1271.     case AV_PIX_FMT_GBRP9:

  1272.     case AV_PIX_FMT_GBRP10:

  1273.     case AV_PIX_FMT_GBRP12:

  1274.     case AV_PIX_FMT_GBRP14:

  1275.     case AV_PIX_FMT_GBRP16:

  1276.     case AV_PIX_FMT_GBRAP10:

  1277.     case AV_PIX_FMT_GBRAP12:

  1278.     case AV_PIX_FMT_GBRAP16:

  1279.         is16bit = 1;

  1280.     case AV_PIX_FMT_GBRP:

  1281.     case AV_PIX_FMT_GBRAP:

  1282.         planar = 1;

  1283.         break;

  1284.     }

  1285. 

  1286.     ff_fill_rgba_map(lut1d->rgba_map, inlink->format);

  1287.     lut1d->step = av_get_padded_bits_per_pixel(desc) >> (3 + is16bit);

  1288. 

  1289. #define SET_FUNC_1D(name) do {                                     \

  1290.     if (planar) {                                                  \

  1291.         switch (depth) {                                           \

  1292.         case  8: lut1d->interp = interp_1d_8_##name##_p8;   break; \

  1293.         case  9: lut1d->interp = interp_1d_16_##name##_p9;  break; \

  1294.         case 10: lut1d->interp = interp_1d_16_##name##_p10; break; \

  1295.         case 12: lut1d->interp = interp_1d_16_##name##_p12; break; \

  1296.         case 14: lut1d->interp = interp_1d_16_##name##_p14; break; \

  1297.         case 16: lut1d->interp = interp_1d_16_##name##_p16; break; \

  1298.         }                                                          \

  1299.     } else if (is16bit) { lut1d->interp = interp_1d_16_##name;     \

  1300.     } else {              lut1d->interp = interp_1d_8_##name; }    \

  1301. } while (0)

  1302. 

  1303.     switch (lut1d->interpolation) {

  1304.     case INTERPOLATE_1D_NEAREST:     SET_FUNC_1D(nearest);  break;

  1305.     case INTERPOLATE_1D_LINEAR:      SET_FUNC_1D(linear);   break;

  1306.     case INTERPOLATE_1D_CUBIC:       SET_FUNC_1D(cubic);    break;

  1307.     default:

  1308.         av_assert0(0);

  1309.     }

  1310. 

  1311.     return 0;

  1312. }

  1313. 

  1314. static av_cold int lut1d_init(AVFilterContext *ctx)

  1315. {

  1316.     int ret;

  1317.     FILE *f;

  1318.     const char *ext;

  1319.     LUT1DContext *lut1d = ctx->priv;

  1320. 

  1321.     if (!lut1d->file) {

  1322.         set_identity_matrix_1d(lut1d, 32);

  1323.         return 0;

  1324.     }

  1325. 

  1326.     f = fopen(lut1d->file, "r");

  1327.     if (!f) {

  1328.         ret = AVERROR(errno);

  1329.         av_log(ctx, AV_LOG_ERROR, "%s: %s\n", lut1d->file, av_err2str(ret));

  1330.         return ret;

  1331.     }

  1332. 

  1333.     ext = strrchr(lut1d->file, '.');

  1334.     if (!ext) {

  1335.         av_log(ctx, AV_LOG_ERROR, "Unable to guess the format from the extension\n");

  1336.         ret = AVERROR_INVALIDDATA;

  1337.         goto end;

  1338.     }

  1339.     ext++;

  1340. 

  1341.     if (!av_strcasecmp(ext, "cube") || !av_strcasecmp(ext, "1dlut")) {

  1342.         ret = parse_cube_1d(ctx, f);

  1343.     } else {

  1344.         av_log(ctx, AV_LOG_ERROR, "Unrecognized '.%s' file type\n", ext);

  1345.         ret = AVERROR(EINVAL);

  1346.     }

  1347. 

  1348.     if (!ret && !lut1d->lutsize) {

  1349.         av_log(ctx, AV_LOG_ERROR, "1D LUT is empty\n");

  1350.         ret = AVERROR_INVALIDDATA;

  1351.     }

  1352. 

  1353. end:

  1354.     fclose(f);

  1355.     return ret;

  1356. }

  1357. 

  1358. static AVFrame *apply_1d_lut(AVFilterLink *inlink, AVFrame *in)

  1359. {

  1360.     AVFilterContext *ctx = inlink->dst;

  1361.     LUT1DContext *lut1d = ctx->priv;

  1362.     AVFilterLink *outlink = inlink->dst->outputs[0];

  1363.     AVFrame *out;

  1364.     ThreadData td;

  1365. 

  1366.     if (av_frame_is_writable(in)) {

  1367.         out = in;

  1368.     } else {

  1369.         out = ff_get_video_buffer(outlink, outlink->w, outlink->h);

  1370.         if (!out) {

  1371.             av_frame_free(&in);

  1372.             return NULL;

  1373.         }

  1374.         av_frame_copy_props(out, in);

  1375.     }

  1376. 

  1377.     td.in  = in;

  1378.     td.out = out;

  1379.     ctx->internal->execute(ctx, lut1d->interp, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));

  1380. 

  1381.     if (out != in)

  1382.         av_frame_free(&in);

  1383. 

  1384.     return out;

  1385. }

  1386. 

  1387. static int filter_frame_1d(AVFilterLink *inlink, AVFrame *in)

  1388. {

  1389.     AVFilterLink *outlink = inlink->dst->outputs[0];

  1390.     AVFrame *out = apply_1d_lut(inlink, in);

  1391.     if (!out)

  1392.         return AVERROR(ENOMEM);

  1393.     return ff_filter_frame(outlink, out);

  1394. }

  1395. 

  1396. static const AVFilterPad lut1d_inputs[] = {

  1397.     {

  1398.         .name         = "default",

  1399.         .type         = AVMEDIA_TYPE_VIDEO,

  1400.         .filter_frame = filter_frame_1d,

  1401.         .config_props = config_input_1d,

  1402.     },

  1403.     { NULL }

  1404. };

  1405. 

  1406. static const AVFilterPad lut1d_outputs[] = {

  1407.     {

  1408.         .name = "default",

  1409.         .type = AVMEDIA_TYPE_VIDEO,

  1410.     },

  1411.     { NULL }

  1412. };

  1413. 

  1414. AVFilter ff_vf_lut1d = {

  1415.     .name          = "lut1d",

  1416.     .description   = NULL_IF_CONFIG_SMALL("Adjust colors using a 1D LUT."),

  1417.     .priv_size     = sizeof(LUT1DContext),

  1418.     .init          = lut1d_init,

  1419.     .query_formats = query_formats,

  1420.     .inputs        = lut1d_inputs,

  1421.     .outputs       = lut1d_outputs,

  1422.     .priv_class    = &lut1d_class,

  1423.     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,

  1424. };

  1425. #endif