FFmpeg coverage

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavfilter/vf_colorlevels.c	Lines:	91	124	73.4 %
Date:	2020-10-23 17:01:47	Branches:	23	51	45.1 %


/*
 * Copyright (c) 2013 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 "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

#define R 0
#define G 1
#define B 2
#define A 3

typedef struct Range {
    double in_min, in_max;
    double out_min, out_max;
} Range;

typedef struct ColorLevelsContext {
    const AVClass *class;
    Range range[4];
    int nb_comp;
    int bpp;
    int step;
    uint8_t rgba_map[4];
    int linesize;
} ColorLevelsContext;

#define OFFSET(x) offsetof(ColorLevelsContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
static const AVOption colorlevels_options[] = {
    { "rimin", "set input red black point",    OFFSET(range[R].in_min),  AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
    { "gimin", "set input green black point",  OFFSET(range[G].in_min),  AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
    { "bimin", "set input blue black point",   OFFSET(range[B].in_min),  AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
    { "aimin", "set input alpha black point",  OFFSET(range[A].in_min),  AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
    { "rimax", "set input red white point",    OFFSET(range[R].in_max),  AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
    { "gimax", "set input green white point",  OFFSET(range[G].in_max),  AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
    { "bimax", "set input blue white point",   OFFSET(range[B].in_max),  AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
    { "aimax", "set input alpha white point",  OFFSET(range[A].in_max),  AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
    { "romin", "set output red black point",   OFFSET(range[R].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0},  0, 1, FLAGS },
    { "gomin", "set output green black point", OFFSET(range[G].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0},  0, 1, FLAGS },
    { "bomin", "set output blue black point",  OFFSET(range[B].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0},  0, 1, FLAGS },
    { "aomin", "set output alpha black point", OFFSET(range[A].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0},  0, 1, FLAGS },
    { "romax", "set output red white point",   OFFSET(range[R].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1},  0, 1, FLAGS },
    { "gomax", "set output green white point", OFFSET(range[G].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1},  0, 1, FLAGS },
    { "bomax", "set output blue white point",  OFFSET(range[B].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1},  0, 1, FLAGS },
    { "aomax", "set output alpha white point", OFFSET(range[A].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1},  0, 1, FLAGS },
    { NULL }
};

AVFILTER_DEFINE_CLASS(colorlevels);

static int query_formats(AVFilterContext *ctx)
{
    static const enum AVPixelFormat pix_fmts[] = {
        AV_PIX_FMT_0RGB,  AV_PIX_FMT_0BGR,
        AV_PIX_FMT_ARGB,  AV_PIX_FMT_ABGR,
        AV_PIX_FMT_RGB0,  AV_PIX_FMT_BGR0,
        AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
        AV_PIX_FMT_RGB48, AV_PIX_FMT_BGR48,
        AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64,
        AV_PIX_FMT_RGBA,  AV_PIX_FMT_BGRA,
        AV_PIX_FMT_NONE
    };

    AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
    if (!fmts_list)
        return AVERROR(ENOMEM);
    return ff_set_common_formats(ctx, fmts_list);
}

static int config_input(AVFilterLink *inlink)
{
    AVFilterContext *ctx = inlink->dst;
    ColorLevelsContext *s = ctx->priv;
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);

    s->nb_comp = desc->nb_components;
    s->bpp = desc->comp[0].depth >> 3;
    s->step = (av_get_padded_bits_per_pixel(desc) >> 3) / s->bpp;
    s->linesize = inlink->w * s->step;
    ff_fill_rgba_map(s->rgba_map, inlink->format);

    return 0;
}

struct thread_data {
    const uint8_t *srcrow;
    uint8_t *dstrow;
    int dst_linesize;
    int src_linesize;

    double coeff;
    uint8_t offset;

    int h;

    int imin;
    int omin;
};

#define LOAD_COMMON\
    ColorLevelsContext *s = ctx->priv;\
    const struct thread_data *td = arg;\
\
    int process_h = td->h;\
    const int slice_start = (process_h *  jobnr   ) / nb_jobs;\
    const int slice_end   = (process_h * (jobnr+1)) / nb_jobs;\
    int x, y;\
    const uint8_t *srcrow = td->srcrow;\
    uint8_t *dstrow = td->dstrow;\
    const int step = s->step;\
    const uint8_t offset = td->offset;\
\
    int imin = td->imin;\
    int omin = td->omin;\
    double coeff = td->coeff;\

static int colorlevel_slice_8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
    LOAD_COMMON

    for (y = slice_start; y < slice_end; y++) {
        const uint8_t *src = srcrow + y * td->src_linesize;
        uint8_t *dst = dstrow + y * td->dst_linesize;

        for (x = 0; x < s->linesize; x += step)
            dst[x + offset] = av_clip_uint8((src[x + offset] - imin) * coeff + omin);
    }

    return 0;
}

static int colorlevel_slice_16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
    LOAD_COMMON

    for (y = slice_start; y < slice_end; y++) {
        const uint16_t *src = (const uint16_t *)(srcrow + y * td->src_linesize);
        uint16_t *dst = (uint16_t *)(dstrow + y * td->dst_linesize);

        for (x = 0; x < s->linesize; x += step)
            dst[x + offset] = av_clip_uint16((src[x + offset] - imin) * coeff + omin);
    }

    return 0;
}

static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
    AVFilterContext *ctx = inlink->dst;
    ColorLevelsContext *s = ctx->priv;
    AVFilterLink *outlink = ctx->outputs[0];
    const int step = s->step;
    AVFrame *out;
    int x, y, i;

    if (av_frame_is_writable(in)) {
        out = in;
    } else {
        out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
        if (!out) {
            av_frame_free(&in);
            return AVERROR(ENOMEM);
        }
        av_frame_copy_props(out, in);
    }

    switch (s->bpp) {
    case 1:
        for (i = 0; i < s->nb_comp; i++) {
            Range *r = &s->range[i];
            const uint8_t offset = s->rgba_map[i];
            const uint8_t *srcrow = in->data[0];
            uint8_t *dstrow = out->data[0];
            int imin = lrint(r->in_min  * UINT8_MAX);
            int imax = lrint(r->in_max  * UINT8_MAX);
            int omin = lrint(r->out_min * UINT8_MAX);
            int omax = lrint(r->out_max * UINT8_MAX);
            double coeff;
            struct thread_data td;

            if (imin < 0) {
                imin = UINT8_MAX;
                for (y = 0; y < inlink->h; y++) {
                    const uint8_t *src = srcrow;

                    for (x = 0; x < s->linesize; x += step)
                        imin = FFMIN(imin, src[x + offset]);
                    srcrow += in->linesize[0];
                }
            }
            if (imax < 0) {
                srcrow = in->data[0];
                imax = 0;
                for (y = 0; y < inlink->h; y++) {
                    const uint8_t *src = srcrow;

                    for (x = 0; x < s->linesize; x += step)
                        imax = FFMAX(imax, src[x + offset]);
                    srcrow += in->linesize[0];
                }
            }

            srcrow = in->data[0];
            coeff = (omax - omin) / (double)(imax - imin);

            td.srcrow        = srcrow;
            td.dstrow        = dstrow;
            td.dst_linesize  = out->linesize[0];
            td.src_linesize  = in->linesize[0];
            td.coeff         = coeff;
            td.offset        = offset;
            td.h             = inlink->h;
            td.imin          = imin;
            td.omin          = omin;

            ctx->internal->execute(ctx, colorlevel_slice_8, &td, NULL,
                                   FFMIN(inlink->h, ff_filter_get_nb_threads(ctx)));
        }
        break;
    case 2:
        for (i = 0; i < s->nb_comp; i++) {
            Range *r = &s->range[i];
            const uint8_t offset = s->rgba_map[i];
            const uint8_t *srcrow = in->data[0];
            uint8_t *dstrow = out->data[0];
            int imin = lrint(r->in_min  * UINT16_MAX);
            int imax = lrint(r->in_max  * UINT16_MAX);
            int omin = lrint(r->out_min * UINT16_MAX);
            int omax = lrint(r->out_max * UINT16_MAX);
            double coeff;
            struct thread_data td;

            if (imin < 0) {
                imin = UINT16_MAX;
                for (y = 0; y < inlink->h; y++) {
                    const uint16_t *src = (const uint16_t *)srcrow;

                    for (x = 0; x < s->linesize; x += step)
                        imin = FFMIN(imin, src[x + offset]);
                    srcrow += in->linesize[0];
                }
            }
            if (imax < 0) {
                srcrow = in->data[0];
                imax = 0;
                for (y = 0; y < inlink->h; y++) {
                    const uint16_t *src = (const uint16_t *)srcrow;

                    for (x = 0; x < s->linesize; x += step)
                        imax = FFMAX(imax, src[x + offset]);
                    srcrow += in->linesize[0];
                }
            }

            srcrow = in->data[0];
            coeff = (omax - omin) / (double)(imax - imin);

            td.srcrow        = srcrow;
            td.dstrow        = dstrow;
            td.dst_linesize  = out->linesize[0];
            td.src_linesize  = in->linesize[0];
            td.coeff         = coeff;
            td.offset        = offset;
            td.h             = inlink->h;
            td.imin          = imin;
            td.omin          = omin;

            ctx->internal->execute(ctx, colorlevel_slice_16, &td, NULL,
                                   FFMIN(inlink->h, ff_filter_get_nb_threads(ctx)));
        }
    }

    if (in != out)
        av_frame_free(&in);
    return ff_filter_frame(outlink, out);
}

static const AVFilterPad colorlevels_inputs[] = {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = filter_frame,
        .config_props = config_input,
    },
    { NULL }
};

static const AVFilterPad colorlevels_outputs[] = {
    {
        .name = "default",
        .type = AVMEDIA_TYPE_VIDEO,
    },
    { NULL }
};

AVFilter ff_vf_colorlevels = {
    .name          = "colorlevels",
    .description   = NULL_IF_CONFIG_SMALL("Adjust the color levels."),
    .priv_size     = sizeof(ColorLevelsContext),
    .priv_class    = &colorlevels_class,
    .query_formats = query_formats,
    .inputs        = colorlevels_inputs,
    .outputs       = colorlevels_outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = ff_filter_process_command,
};


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			/*
2			* Copyright (c) 2013 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 "libavutil/imgutils.h"
22			#include "libavutil/opt.h"
23			#include "libavutil/pixdesc.h"
24			#include "avfilter.h"
25			#include "drawutils.h"
26			#include "formats.h"
27			#include "internal.h"
28			#include "video.h"
29
30			#define R 0
31			#define G 1
32			#define B 2
33			#define A 3
34
35			typedef struct Range {
36			double in_min, in_max;
37			double out_min, out_max;
38			} Range;
39
40			typedef struct ColorLevelsContext {
41			const AVClass *class;
42			Range range[4];
43			int nb_comp;
44			int bpp;
45			int step;
46			uint8_t rgba_map[4];
47			int linesize;
48			} ColorLevelsContext;
49
50			#define OFFSET(x) offsetof(ColorLevelsContext, x)
51			#define FLAGS AV_OPT_FLAG_FILTERING_PARAM\|AV_OPT_FLAG_VIDEO_PARAM\|AV_OPT_FLAG_RUNTIME_PARAM
52			static const AVOption colorlevels_options[] = {
53			{ "rimin", "set input red black point", OFFSET(range[R].in_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
54			{ "gimin", "set input green black point", OFFSET(range[G].in_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
55			{ "bimin", "set input blue black point", OFFSET(range[B].in_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
56			{ "aimin", "set input alpha black point", OFFSET(range[A].in_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
57			{ "rimax", "set input red white point", OFFSET(range[R].in_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
58			{ "gimax", "set input green white point", OFFSET(range[G].in_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
59			{ "bimax", "set input blue white point", OFFSET(range[B].in_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
60			{ "aimax", "set input alpha white point", OFFSET(range[A].in_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
61			{ "romin", "set output red black point", OFFSET(range[R].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS },
62			{ "gomin", "set output green black point", OFFSET(range[G].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS },
63			{ "bomin", "set output blue black point", OFFSET(range[B].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS },
64			{ "aomin", "set output alpha black point", OFFSET(range[A].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS },
65			{ "romax", "set output red white point", OFFSET(range[R].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
66			{ "gomax", "set output green white point", OFFSET(range[G].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
67			{ "bomax", "set output blue white point", OFFSET(range[B].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
68			{ "aomax", "set output alpha white point", OFFSET(range[A].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
69			{ NULL }
70			};
71
72			AVFILTER_DEFINE_CLASS(colorlevels);
73
74		2	static int query_formats(AVFilterContext *ctx)
75			{
76			static const enum AVPixelFormat pix_fmts[] = {
77			AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR,
78			AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR,
79			AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0,
80			AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
81			AV_PIX_FMT_RGB48, AV_PIX_FMT_BGR48,
82			AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64,
83			AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA,
84			AV_PIX_FMT_NONE
85			};
86
87		2	AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
88	✗✓	2	if (!fmts_list)
89			return AVERROR(ENOMEM);
90		2	return ff_set_common_formats(ctx, fmts_list);
91			}
92
93		2	static int config_input(AVFilterLink *inlink)
94			{
95		2	AVFilterContext *ctx = inlink->dst;
96		2	ColorLevelsContext *s = ctx->priv;
97		2	const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
98
99		2	s->nb_comp = desc->nb_components;
100		2	s->bpp = desc->comp[0].depth >> 3;
101		2	s->step = (av_get_padded_bits_per_pixel(desc) >> 3) / s->bpp;
102		2	s->linesize = inlink->w * s->step;
103		2	ff_fill_rgba_map(s->rgba_map, inlink->format);
104
105		2	return 0;
106			}
107
108			struct thread_data {
109			const uint8_t *srcrow;
110			uint8_t *dstrow;
111			int dst_linesize;
112			int src_linesize;
113
114			double coeff;
115			uint8_t offset;
116
117			int h;
118
119			int imin;
120			int omin;
121			};
122
123			#define LOAD_COMMON\
124			ColorLevelsContext *s = ctx->priv;\
125			const struct thread_data *td = arg;\
126			\
127			int process_h = td->h;\
128			const int slice_start = (process_h * jobnr ) / nb_jobs;\
129			const int slice_end = (process_h * (jobnr+1)) / nb_jobs;\
130			int x, y;\
131			const uint8_t *srcrow = td->srcrow;\
132			uint8_t *dstrow = td->dstrow;\
133			const int step = s->step;\
134			const uint8_t offset = td->offset;\
135			\
136			int imin = td->imin;\
137			int omin = td->omin;\
138			double coeff = td->coeff;\
139
140		1350	static int colorlevel_slice_8(AVFilterContext ctx, void arg, int jobnr, int nb_jobs)
141			{
142		1350	LOAD_COMMON
143
144	✓✓	44550	for (y = slice_start; y < slice_end; y++) {
145		43200	const uint8_t src = srcrow + y td->src_linesize;
146		43200	uint8_t dst = dstrow + y td->dst_linesize;
147
148	✓✓	15249600	for (x = 0; x < s->linesize; x += step)
149		15206400	dst[x + offset] = av_clip_uint8((src[x + offset] - imin) * coeff + omin);
150			}
151
152		1350	return 0;
153			}
154
155		1350	static int colorlevel_slice_16(AVFilterContext ctx, void arg, int jobnr, int nb_jobs)
156			{
157		1350	LOAD_COMMON
158
159	✓✓	44550	for (y = slice_start; y < slice_end; y++) {
160		43200	const uint16_t src = (const uint16_t )(srcrow + y * td->src_linesize);
161		43200	uint16_t dst = (uint16_t )(dstrow + y * td->dst_linesize);
162
163	✓✓	15249600	for (x = 0; x < s->linesize; x += step)
164		15206400	dst[x + offset] = av_clip_uint16((src[x + offset] - imin) * coeff + omin);
165			}
166
167		1350	return 0;
168			}
169
170		100	static int filter_frame(AVFilterLink inlink, AVFrame in)
171			{
172		100	AVFilterContext *ctx = inlink->dst;
173		100	ColorLevelsContext *s = ctx->priv;
174		100	AVFilterLink *outlink = ctx->outputs[0];
175		100	const int step = s->step;
176			AVFrame *out;
177			int x, y, i;
178
179	✓✗	100	if (av_frame_is_writable(in)) {
180		100	out = in;
181			} else {
182			out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
183			if (!out) {
184			av_frame_free(&in);
185			return AVERROR(ENOMEM);
186			}
187			av_frame_copy_props(out, in);
188			}
189
190	✓✓✗	100	switch (s->bpp) {
191		50	case 1:
192	✓✓	200	for (i = 0; i < s->nb_comp; i++) {
193		150	Range *r = &s->range[i];
194		150	const uint8_t offset = s->rgba_map[i];
195		150	const uint8_t *srcrow = in->data[0];
196		150	uint8_t *dstrow = out->data[0];
197		150	int imin = lrint(r->in_min * UINT8_MAX);
198		150	int imax = lrint(r->in_max * UINT8_MAX);
199		150	int omin = lrint(r->out_min * UINT8_MAX);
200		150	int omax = lrint(r->out_max * UINT8_MAX);
201			double coeff;
202			struct thread_data td;
203
204	✗✓	150	if (imin < 0) {
205			imin = UINT8_MAX;
206			for (y = 0; y < inlink->h; y++) {
207			const uint8_t *src = srcrow;
208
209			for (x = 0; x < s->linesize; x += step)
210			imin = FFMIN(imin, src[x + offset]);
211			srcrow += in->linesize[0];
212			}
213			}
214	✗✓	150	if (imax < 0) {
215			srcrow = in->data[0];
216			imax = 0;
217			for (y = 0; y < inlink->h; y++) {
218			const uint8_t *src = srcrow;
219
220			for (x = 0; x < s->linesize; x += step)
221			imax = FFMAX(imax, src[x + offset]);
222			srcrow += in->linesize[0];
223			}
224			}
225
226		150	srcrow = in->data[0];
227		150	coeff = (omax - omin) / (double)(imax - imin);
228
229		150	td.srcrow = srcrow;
230		150	td.dstrow = dstrow;
231		150	td.dst_linesize = out->linesize[0];
232		150	td.src_linesize = in->linesize[0];
233		150	td.coeff = coeff;
234		150	td.offset = offset;
235		150	td.h = inlink->h;
236		150	td.imin = imin;
237		150	td.omin = omin;
238
239	✓✗	300	ctx->internal->execute(ctx, colorlevel_slice_8, &td, NULL,
240		300	FFMIN(inlink->h, ff_filter_get_nb_threads(ctx)));
241			}
242		50	break;
243		50	case 2:
244	✓✓	200	for (i = 0; i < s->nb_comp; i++) {
245		150	Range *r = &s->range[i];
246		150	const uint8_t offset = s->rgba_map[i];
247		150	const uint8_t *srcrow = in->data[0];
248		150	uint8_t *dstrow = out->data[0];
249		150	int imin = lrint(r->in_min * UINT16_MAX);
250		150	int imax = lrint(r->in_max * UINT16_MAX);
251		150	int omin = lrint(r->out_min * UINT16_MAX);
252		150	int omax = lrint(r->out_max * UINT16_MAX);
253			double coeff;
254			struct thread_data td;
255
256	✗✓	150	if (imin < 0) {
257			imin = UINT16_MAX;
258			for (y = 0; y < inlink->h; y++) {
259			const uint16_t src = (const uint16_t )srcrow;
260
261			for (x = 0; x < s->linesize; x += step)
262			imin = FFMIN(imin, src[x + offset]);
263			srcrow += in->linesize[0];
264			}
265			}
266	✗✓	150	if (imax < 0) {
267			srcrow = in->data[0];
268			imax = 0;
269			for (y = 0; y < inlink->h; y++) {
270			const uint16_t src = (const uint16_t )srcrow;
271
272			for (x = 0; x < s->linesize; x += step)
273			imax = FFMAX(imax, src[x + offset]);
274			srcrow += in->linesize[0];
275			}
276			}
277
278		150	srcrow = in->data[0];
279		150	coeff = (omax - omin) / (double)(imax - imin);
280
281		150	td.srcrow = srcrow;
282		150	td.dstrow = dstrow;
283		150	td.dst_linesize = out->linesize[0];
284		150	td.src_linesize = in->linesize[0];
285		150	td.coeff = coeff;
286		150	td.offset = offset;
287		150	td.h = inlink->h;
288		150	td.imin = imin;
289		150	td.omin = omin;
290
291	✓✗	300	ctx->internal->execute(ctx, colorlevel_slice_16, &td, NULL,
292		300	FFMIN(inlink->h, ff_filter_get_nb_threads(ctx)));
293			}
294			}
295
296	✗✓	100	if (in != out)
297			av_frame_free(&in);
298		100	return ff_filter_frame(outlink, out);
299			}
300
301			static const AVFilterPad colorlevels_inputs[] = {
302			{
303			.name = "default",
304			.type = AVMEDIA_TYPE_VIDEO,
305			.filter_frame = filter_frame,
306			.config_props = config_input,
307			},
308			{ NULL }
309			};
310
311			static const AVFilterPad colorlevels_outputs[] = {
312			{
313			.name = "default",
314			.type = AVMEDIA_TYPE_VIDEO,
315			},
316			{ NULL }
317			};
318
319			AVFilter ff_vf_colorlevels = {
320			.name = "colorlevels",
321			.description = NULL_IF_CONFIG_SMALL("Adjust the color levels."),
322			.priv_size = sizeof(ColorLevelsContext),
323			.priv_class = &colorlevels_class,
324			.query_formats = query_formats,
325			.inputs = colorlevels_inputs,
326			.outputs = colorlevels_outputs,
327			.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC \| AVFILTER_FLAG_SLICE_THREADS,
328			.process_command = ff_filter_process_command,
329			};