FFmpeg coverage

Directory:	../../../ffmpeg/
File:	src/libavfilter/vf_monochrome.c
Date:	2026-09-25 11:37:27

	Total	Coverage
Lines:	125	0.0%
Functions:	8	0.0%
Branches:	24	0.0%

  
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      /*
    
       * Copyright (c) 2021 Paul B Mahol
    
       *
    
       * This file is part of FFmpeg.
    
       *
    
       * FFmpeg is free software; you can redistribute it and/or
    
       * modify it under the terms of the GNU Lesser General Public
    
       * License as published by the Free Software Foundation; either
    
       * version 2.1 of the License, or (at your option) any later version.
    
       *
    
       * FFmpeg is distributed in the hope that it will be useful,
    
       * but WITHOUT ANY WARRANTY; without even the implied warranty of
    
       * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    
       * Lesser General Public License for more details.
    
       *
    
       * You should have received a copy of the GNU Lesser General Public
    
       * License along with FFmpeg; if not, write to the Free Software
    
       * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
    
       */
    
      #include <float.h>
    
      #include "libavutil/opt.h"
    
      #include "libavutil/pixdesc.h"
    
      #include "avfilter.h"
    
      #include "filters.h"
    
      #include "video.h"
    
      typedef struct MonochromeContext {
    
          const AVClass *class;
    
          float b, r;
    
          float size;
    
          float high;
    
          int depth;
    
          int subw, subh;
    
          int (*do_slice)(AVFilterContext *s, void *arg,
    
                          int jobnr, int nb_jobs);
    
          int (*clear_uv)(AVFilterContext *s, void *arg,
    
                          int jobnr, int nb_jobs);
    
      } MonochromeContext;
    
      ✗
      static float envelope(const float x)
    
      {
    
      ✗
          const float beta = 0.6f;
    
      ✗
          if (x < beta) {
    
      ✗
              const float tmp = fabsf(x / beta - 1.f);
    
      ✗
              return 1.f - tmp * tmp;
    
          } else {
    
      ✗
              const float tmp = (1.f - x) / (1.f - beta);
    
      ✗
              return tmp * tmp * (3.f - 2.f * tmp);
    
          }
    
      }
    
      ✗
      static float filter(float b, float r, float u, float v, float size)
    
      {
    
      ✗
          return expf(-av_clipf(((b - u) * (b - u) +
    
      ✗
                                 (r - v) * (r - v)) *
    
                                  size, 0.f, 1.f));
    
      }
    
      #define PROCESS()                            \
    
          const int cx = x >> subw;                \
    
          float y = yptr[x] * imax;                \
    
          float u = uptr[cx] * imax - .5f;         \
    
          float v = vptr[cx] * imax - .5f;         \
    
          float tt, t, ny;                         \
    
                                                   \
    
          ny = filter(b, r, u, v, size);           \
    
          tt = envelope(y);                        \
    
          t = tt + (1.f - tt) * ihigh;             \
    
          ny = (1.f - t) * y + t * ny * y;
    
      ✗
      static int monochrome_slice8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
    
      {
    
      ✗
          MonochromeContext *s = ctx->priv;
    
      ✗
          AVFrame *frame = arg;
    
      ✗
          const int depth = s->depth;
    
      ✗
          const int subw = s->subw;
    
      ✗
          const int subh = s->subh;
    
      ✗
          const float max = (1 << depth) - 1;
    
      ✗
          const float imax = 1.f / max;
    
      ✗
          const int width = frame->width;
    
      ✗
          const int height = frame->height;
    
      ✗
          const int slice_start = ff_slice_pos(height, jobnr, nb_jobs);
    
      ✗
          const int slice_end = ff_slice_pos(height, jobnr + 1, nb_jobs);
    
      ✗
          const ptrdiff_t ylinesize = frame->linesize[0];
    
      ✗
          const ptrdiff_t ulinesize = frame->linesize[1];
    
      ✗
          const ptrdiff_t vlinesize = frame->linesize[2];
    
      ✗
          uint8_t *yptr = frame->data[0] + slice_start * ylinesize;
    
      ✗
          const float ihigh = 1.f - s->high;
    
      ✗
          const float size = 1.f / s->size;
    
      ✗
          const float b = s->b * .5f;
    
      ✗
          const float r = s->r * .5f;
    
      ✗
          for (int y = slice_start; y < slice_end; y++) {
    
      ✗
              const int cy = y >> subh;
    
      ✗
              uint8_t *uptr = frame->data[1] + cy * ulinesize;
    
      ✗
              uint8_t *vptr = frame->data[2] + cy * vlinesize;
    
      ✗
              for (int x = 0; x < width; x++) {
    
      ✗
                  PROCESS()
    
      ✗
                  yptr[x] = av_clip_uint8(lrintf(ny * max));
    
              }
    
      ✗
              yptr += ylinesize;
    
          }
    
      ✗
          return 0;
    
      }
    
      ✗
      static int monochrome_slice16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
    
      {
    
      ✗
          MonochromeContext *s = ctx->priv;
    
      ✗
          AVFrame *frame = arg;
    
      ✗
          const int depth = s->depth;
    
      ✗
          const int subw = s->subw;
    
      ✗
          const int subh = s->subh;
    
      ✗
          const float max = (1 << depth) - 1;
    
      ✗
          const float imax = 1.f / max;
    
      ✗
          const int width = frame->width;
    
      ✗
          const int height = frame->height;
    
      ✗
          const int slice_start = ff_slice_pos(height, jobnr, nb_jobs);
    
      ✗
          const int slice_end = ff_slice_pos(height, jobnr + 1, nb_jobs);
    
      ✗
          const ptrdiff_t ylinesize = frame->linesize[0] / 2;
    
      ✗
          const ptrdiff_t ulinesize = frame->linesize[1] / 2;
    
      ✗
          const ptrdiff_t vlinesize = frame->linesize[2] / 2;
    
      ✗
          uint16_t *yptr = (uint16_t *)frame->data[0] + slice_start * ylinesize;
    
      ✗
          const float ihigh = 1.f - s->high;
    
      ✗
          const float size = 1.f / s->size;
    
      ✗
          const float b = s->b * .5f;
    
      ✗
          const float r = s->r * .5f;
    
      ✗
          for (int y = slice_start; y < slice_end; y++) {
    
      ✗
              const int cy = y >> subh;
    
      ✗
              uint16_t *uptr = (uint16_t *)frame->data[1] + cy * ulinesize;
    
      ✗
              uint16_t *vptr = (uint16_t *)frame->data[2] + cy * vlinesize;
    
      ✗
              for (int x = 0; x < width; x++) {
    
      ✗
                  PROCESS()
    
      ✗
                  yptr[x] = av_clip_uintp2_c(lrintf(ny * max), depth);
    
              }
    
      ✗
              yptr += ylinesize;
    
          }
    
      ✗
          return 0;
    
      }
    
      ✗
      static int clear_slice8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
    
      {
    
      ✗
          MonochromeContext *s = ctx->priv;
    
      ✗
          AVFrame *frame = arg;
    
      ✗
          const int depth = s->depth;
    
      ✗
          const int half = 1 << (depth - 1);
    
      ✗
          const int subw = s->subw;
    
      ✗
          const int subh = s->subh;
    
      ✗
          const int width = AV_CEIL_RSHIFT(frame->width, subw);
    
      ✗
          const int height = AV_CEIL_RSHIFT(frame->height, subh);
    
      ✗
          const int slice_start = ff_slice_pos(height, jobnr, nb_jobs);
    
      ✗
          const int slice_end = ff_slice_pos(height, jobnr + 1, nb_jobs);
    
      ✗
          const ptrdiff_t ulinesize = frame->linesize[1];
    
      ✗
          const ptrdiff_t vlinesize = frame->linesize[2];
    
      ✗
          for (int y = slice_start; y < slice_end; y++) {
    
      ✗
              uint8_t *uptr = frame->data[1] + y * ulinesize;
    
      ✗
              uint8_t *vptr = frame->data[2] + y * vlinesize;
    
      ✗
              memset(uptr, half, width);
    
      ✗
              memset(vptr, half, width);
    
          }
    
      ✗
          return 0;
    
      }
    
      ✗
      static int clear_slice16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
    
      {
    
      ✗
          MonochromeContext *s = ctx->priv;
    
      ✗
          AVFrame *frame = arg;
    
      ✗
          const int depth = s->depth;
    
      ✗
          const int half = 1 << (depth - 1);
    
      ✗
          const int subw = s->subw;
    
      ✗
          const int subh = s->subh;
    
      ✗
          const int width = AV_CEIL_RSHIFT(frame->width, subw);
    
      ✗
          const int height = AV_CEIL_RSHIFT(frame->height, subh);
    
      ✗
          const int slice_start = ff_slice_pos(height, jobnr, nb_jobs);
    
      ✗
          const int slice_end = ff_slice_pos(height, jobnr + 1, nb_jobs);
    
      ✗
          const ptrdiff_t ulinesize = frame->linesize[1] / 2;
    
      ✗
          const ptrdiff_t vlinesize = frame->linesize[2] / 2;
    
      ✗
          for (int y = slice_start; y < slice_end; y++) {
    
      ✗
              uint16_t *uptr = (uint16_t *)frame->data[1] + y * ulinesize;
    
      ✗
              uint16_t *vptr = (uint16_t *)frame->data[2] + y * vlinesize;
    
      ✗
              for (int x = 0; x < width; x++) {
    
      ✗
                  uptr[x] = half;
    
      ✗
                  vptr[x] = half;
    
              }
    
          }
    
      ✗
          return 0;
    
      }
    
      ✗
      static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
    
      {
    
      ✗
          AVFilterContext *ctx = inlink->dst;
    
      ✗
          MonochromeContext *s = ctx->priv;
    
      ✗
          ff_filter_execute(ctx, s->do_slice, frame, NULL,
    
      ✗
                            FFMIN(frame->height, ff_filter_get_nb_threads(ctx)));
    
      ✗
          ff_filter_execute(ctx, s->clear_uv, frame, NULL,
    
      ✗
                            FFMIN(frame->height >> s->subh, ff_filter_get_nb_threads(ctx)));
    
      ✗
          return ff_filter_frame(ctx->outputs[0], frame);
    
      }
    
      static const enum AVPixelFormat pixel_fmts[] = {
    
          AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
    
          AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
    
          AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
    
          AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
    
          AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
    
          AV_PIX_FMT_YUVJ411P,
    
          AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
    
          AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
    
          AV_PIX_FMT_YUV440P10,
    
          AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
    
          AV_PIX_FMT_YUV440P12,
    
          AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
    
          AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
    
          AV_PIX_FMT_YUVA420P,  AV_PIX_FMT_YUVA422P,   AV_PIX_FMT_YUVA444P,
    
          AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
    
          AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16,
    
          AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
    
          AV_PIX_FMT_NONE
    
      };
    
      ✗
      static av_cold int config_input(AVFilterLink *inlink)
    
      {
    
      ✗
          AVFilterContext *ctx = inlink->dst;
    
      ✗
          MonochromeContext *s = ctx->priv;
    
      ✗
          const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
    
      ✗
          s->depth = desc->comp[0].depth;
    
      ✗
          s->do_slice = s->depth <= 8 ? monochrome_slice8 : monochrome_slice16;
    
      ✗
          s->clear_uv = s->depth <= 8 ? clear_slice8 : clear_slice16;
    
      ✗
          s->subw = desc->log2_chroma_w;
    
      ✗
          s->subh = desc->log2_chroma_h;
    
      ✗
          return 0;
    
      }
    
      static const AVFilterPad monochrome_inputs[] = {
    
          {
    
              .name           = "default",
    
              .type           = AVMEDIA_TYPE_VIDEO,
    
              .flags          = AVFILTERPAD_FLAG_NEEDS_WRITABLE,
    
              .filter_frame   = filter_frame,
    
              .config_props   = config_input,
    
          },
    
      };
    
      #define OFFSET(x) offsetof(MonochromeContext, x)
    
      #define VF AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
    
      static const AVOption monochrome_options[] = {
    
          { "cb",   "set the chroma blue spot",    OFFSET(b),    AV_OPT_TYPE_FLOAT, {.dbl=0},-1, 1, VF },
    
          { "cr",   "set the chroma red spot",     OFFSET(r),    AV_OPT_TYPE_FLOAT, {.dbl=0},-1, 1, VF },
    
          { "size", "set the color filter size",   OFFSET(size), AV_OPT_TYPE_FLOAT, {.dbl=1},.1,10, VF },
    
          { "high", "set the highlights strength", OFFSET(high), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, 1, VF },
    
          { NULL }
    
      };
    
      AVFILTER_DEFINE_CLASS(monochrome);
    
      const FFFilter ff_vf_monochrome = {
    
          .p.name        = "monochrome",
    
          .p.description = NULL_IF_CONFIG_SMALL("Convert video to gray using custom color filter."),
    
          .p.priv_class  = &monochrome_class,
    
          .p.flags       = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    
          .priv_size     = sizeof(MonochromeContext),
    
          FILTER_INPUTS(monochrome_inputs),
    
          FILTER_OUTPUTS(ff_video_default_filterpad),
    
          FILTER_PIXFMTS_ARRAY(pixel_fmts),
    
          .process_command = ff_filter_process_command,
    
      };

Line	Exec	Source
1		/*
2		* Copyright (c) 2021 Paul B Mahol
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		#include <float.h>
22
23		#include "libavutil/opt.h"
24		#include "libavutil/pixdesc.h"
25		#include "avfilter.h"
26		#include "filters.h"
27		#include "video.h"
28
29		typedef struct MonochromeContext {
30		const AVClass *class;
31
32		float b, r;
33		float size;
34		float high;
35
36		int depth;
37		int subw, subh;
38
39		int (do_slice)(AVFilterContext s, void *arg,
40		int jobnr, int nb_jobs);
41		int (clear_uv)(AVFilterContext s, void *arg,
42		int jobnr, int nb_jobs);
43		} MonochromeContext;
44
45	✗	static float envelope(const float x)
46		{
47	✗	const float beta = 0.6f;
48
49	✗	if (x < beta) {
50	✗	const float tmp = fabsf(x / beta - 1.f);
51
52	✗	return 1.f - tmp * tmp;
53		} else {
54	✗	const float tmp = (1.f - x) / (1.f - beta);
55
56	✗	return tmp * tmp * (3.f - 2.f * tmp);
57		}
58		}
59
60	✗	static float filter(float b, float r, float u, float v, float size)
61		{
62	✗	return expf(-av_clipf(((b - u) * (b - u) +
63	✗	(r - v) * (r - v)) *
64		size, 0.f, 1.f));
65		}
66
67		#define PROCESS() \
68		const int cx = x >> subw; \
69		float y = yptr[x] * imax; \
70		float u = uptr[cx] * imax - .5f; \
71		float v = vptr[cx] * imax - .5f; \
72		float tt, t, ny; \
73		\
74		ny = filter(b, r, u, v, size); \
75		tt = envelope(y); \
76		t = tt + (1.f - tt) * ihigh; \
77		ny = (1.f - t) * y + t * ny * y;
78
79	✗	static int monochrome_slice8(AVFilterContext ctx, void arg, int jobnr, int nb_jobs)
80		{
81	✗	MonochromeContext *s = ctx->priv;
82	✗	AVFrame *frame = arg;
83	✗	const int depth = s->depth;
84	✗	const int subw = s->subw;
85	✗	const int subh = s->subh;
86	✗	const float max = (1 << depth) - 1;
87	✗	const float imax = 1.f / max;
88	✗	const int width = frame->width;
89	✗	const int height = frame->height;
90	✗	const int slice_start = ff_slice_pos(height, jobnr, nb_jobs);
91	✗	const int slice_end = ff_slice_pos(height, jobnr + 1, nb_jobs);
92	✗	const ptrdiff_t ylinesize = frame->linesize[0];
93	✗	const ptrdiff_t ulinesize = frame->linesize[1];
94	✗	const ptrdiff_t vlinesize = frame->linesize[2];
95	✗	uint8_t yptr = frame->data[0] + slice_start ylinesize;
96	✗	const float ihigh = 1.f - s->high;
97	✗	const float size = 1.f / s->size;
98	✗	const float b = s->b * .5f;
99	✗	const float r = s->r * .5f;
100
101	✗	for (int y = slice_start; y < slice_end; y++) {
102	✗	const int cy = y >> subh;
103	✗	uint8_t uptr = frame->data[1] + cy ulinesize;
104	✗	uint8_t vptr = frame->data[2] + cy vlinesize;
105
106	✗	for (int x = 0; x < width; x++) {
107	✗	PROCESS()
108
109	✗	yptr[x] = av_clip_uint8(lrintf(ny * max));
110		}
111
112	✗	yptr += ylinesize;
113		}
114
115	✗	return 0;
116		}
117
118	✗	static int monochrome_slice16(AVFilterContext ctx, void arg, int jobnr, int nb_jobs)
119		{
120	✗	MonochromeContext *s = ctx->priv;
121	✗	AVFrame *frame = arg;
122	✗	const int depth = s->depth;
123	✗	const int subw = s->subw;
124	✗	const int subh = s->subh;
125	✗	const float max = (1 << depth) - 1;
126	✗	const float imax = 1.f / max;
127	✗	const int width = frame->width;
128	✗	const int height = frame->height;
129	✗	const int slice_start = ff_slice_pos(height, jobnr, nb_jobs);
130	✗	const int slice_end = ff_slice_pos(height, jobnr + 1, nb_jobs);
131	✗	const ptrdiff_t ylinesize = frame->linesize[0] / 2;
132	✗	const ptrdiff_t ulinesize = frame->linesize[1] / 2;
133	✗	const ptrdiff_t vlinesize = frame->linesize[2] / 2;
134	✗	uint16_t yptr = (uint16_t )frame->data[0] + slice_start * ylinesize;
135	✗	const float ihigh = 1.f - s->high;
136	✗	const float size = 1.f / s->size;
137	✗	const float b = s->b * .5f;
138	✗	const float r = s->r * .5f;
139
140	✗	for (int y = slice_start; y < slice_end; y++) {
141	✗	const int cy = y >> subh;
142	✗	uint16_t uptr = (uint16_t )frame->data[1] + cy * ulinesize;
143	✗	uint16_t vptr = (uint16_t )frame->data[2] + cy * vlinesize;
144
145	✗	for (int x = 0; x < width; x++) {
146	✗	PROCESS()
147
148	✗	yptr[x] = av_clip_uintp2_c(lrintf(ny * max), depth);
149		}
150
151	✗	yptr += ylinesize;
152		}
153
154	✗	return 0;
155		}
156
157	✗	static int clear_slice8(AVFilterContext ctx, void arg, int jobnr, int nb_jobs)
158		{
159	✗	MonochromeContext *s = ctx->priv;
160	✗	AVFrame *frame = arg;
161	✗	const int depth = s->depth;
162	✗	const int half = 1 << (depth - 1);
163	✗	const int subw = s->subw;
164	✗	const int subh = s->subh;
165	✗	const int width = AV_CEIL_RSHIFT(frame->width, subw);
166	✗	const int height = AV_CEIL_RSHIFT(frame->height, subh);
167	✗	const int slice_start = ff_slice_pos(height, jobnr, nb_jobs);
168	✗	const int slice_end = ff_slice_pos(height, jobnr + 1, nb_jobs);
169	✗	const ptrdiff_t ulinesize = frame->linesize[1];
170	✗	const ptrdiff_t vlinesize = frame->linesize[2];
171
172	✗	for (int y = slice_start; y < slice_end; y++) {
173	✗	uint8_t uptr = frame->data[1] + y ulinesize;
174	✗	uint8_t vptr = frame->data[2] + y vlinesize;
175
176	✗	memset(uptr, half, width);
177	✗	memset(vptr, half, width);
178		}
179
180	✗	return 0;
181		}
182
183	✗	static int clear_slice16(AVFilterContext ctx, void arg, int jobnr, int nb_jobs)
184		{
185	✗	MonochromeContext *s = ctx->priv;
186	✗	AVFrame *frame = arg;
187	✗	const int depth = s->depth;
188	✗	const int half = 1 << (depth - 1);
189	✗	const int subw = s->subw;
190	✗	const int subh = s->subh;
191	✗	const int width = AV_CEIL_RSHIFT(frame->width, subw);
192	✗	const int height = AV_CEIL_RSHIFT(frame->height, subh);
193	✗	const int slice_start = ff_slice_pos(height, jobnr, nb_jobs);
194	✗	const int slice_end = ff_slice_pos(height, jobnr + 1, nb_jobs);
195	✗	const ptrdiff_t ulinesize = frame->linesize[1] / 2;
196	✗	const ptrdiff_t vlinesize = frame->linesize[2] / 2;
197
198	✗	for (int y = slice_start; y < slice_end; y++) {
199	✗	uint16_t uptr = (uint16_t )frame->data[1] + y * ulinesize;
200	✗	uint16_t vptr = (uint16_t )frame->data[2] + y * vlinesize;
201
202	✗	for (int x = 0; x < width; x++) {
203	✗	uptr[x] = half;
204	✗	vptr[x] = half;
205		}
206		}
207
208	✗	return 0;
209		}
210
211	✗	static int filter_frame(AVFilterLink inlink, AVFrame frame)
212		{
213	✗	AVFilterContext *ctx = inlink->dst;
214	✗	MonochromeContext *s = ctx->priv;
215
216	✗	ff_filter_execute(ctx, s->do_slice, frame, NULL,
217	✗	FFMIN(frame->height, ff_filter_get_nb_threads(ctx)));
218	✗	ff_filter_execute(ctx, s->clear_uv, frame, NULL,
219	✗	FFMIN(frame->height >> s->subh, ff_filter_get_nb_threads(ctx)));
220
221	✗	return ff_filter_frame(ctx->outputs[0], frame);
222		}
223
224		static const enum AVPixelFormat pixel_fmts[] = {
225		AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
226		AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
227		AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
228		AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
229		AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
230		AV_PIX_FMT_YUVJ411P,
231		AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
232		AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
233		AV_PIX_FMT_YUV440P10,
234		AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
235		AV_PIX_FMT_YUV440P12,
236		AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
237		AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
238		AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
239		AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
240		AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16,
241		AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
242		AV_PIX_FMT_NONE
243		};
244
245	✗	static av_cold int config_input(AVFilterLink *inlink)
246		{
247	✗	AVFilterContext *ctx = inlink->dst;
248	✗	MonochromeContext *s = ctx->priv;
249	✗	const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
250
251	✗	s->depth = desc->comp[0].depth;
252	✗	s->do_slice = s->depth <= 8 ? monochrome_slice8 : monochrome_slice16;
253	✗	s->clear_uv = s->depth <= 8 ? clear_slice8 : clear_slice16;
254	✗	s->subw = desc->log2_chroma_w;
255	✗	s->subh = desc->log2_chroma_h;
256
257	✗	return 0;
258		}
259
260		static const AVFilterPad monochrome_inputs[] = {
261		{
262		.name = "default",
263		.type = AVMEDIA_TYPE_VIDEO,
264		.flags = AVFILTERPAD_FLAG_NEEDS_WRITABLE,
265		.filter_frame = filter_frame,
266		.config_props = config_input,
267		},
268		};
269
270		#define OFFSET(x) offsetof(MonochromeContext, x)
271		#define VF AV_OPT_FLAG_FILTERING_PARAM\|AV_OPT_FLAG_VIDEO_PARAM\|AV_OPT_FLAG_RUNTIME_PARAM
272
273		static const AVOption monochrome_options[] = {
274		{ "cb", "set the chroma blue spot", OFFSET(b), AV_OPT_TYPE_FLOAT, {.dbl=0},-1, 1, VF },
275		{ "cr", "set the chroma red spot", OFFSET(r), AV_OPT_TYPE_FLOAT, {.dbl=0},-1, 1, VF },
276		{ "size", "set the color filter size", OFFSET(size), AV_OPT_TYPE_FLOAT, {.dbl=1},.1,10, VF },
277		{ "high", "set the highlights strength", OFFSET(high), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, 1, VF },
278		{ NULL }
279		};
280
281		AVFILTER_DEFINE_CLASS(monochrome);
282
283		const FFFilter ff_vf_monochrome = {
284		.p.name = "monochrome",
285		.p.description = NULL_IF_CONFIG_SMALL("Convert video to gray using custom color filter."),
286		.p.priv_class = &monochrome_class,
287		.p.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC \| AVFILTER_FLAG_SLICE_THREADS,
288		.priv_size = sizeof(MonochromeContext),
289		FILTER_INPUTS(monochrome_inputs),
290		FILTER_OUTPUTS(ff_video_default_filterpad),
291		FILTER_PIXFMTS_ARRAY(pixel_fmts),
292		.process_command = ff_filter_process_command,
293		};
294

Function (Line)	Call count	Block coverage
clear_slice16 (line 183)	not called	0.0%
clear_slice8 (line 157)	not called	0.0%
config_input (line 245)	not called	0.0%
envelope (line 45)	not called	0.0%
filter (line 60)	not called	0.0%
filter_frame (line 211)	not called	0.0%
monochrome_slice16 (line 118)	not called	0.0%
monochrome_slice8 (line 79)	not called	0.0%