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FFmpeg/libavfilter/vf_negate.c
Anton Khirnov 6d75d44d90 lavfi: drop internal.h 
All that remains in it are things that belong in avfilter_internal.h.

Move them there and remove internal.h
2024-08-19 21:48:04 +02:00

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/*
* 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/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "filters.h"
#include "video.h"
#define COMP_R 0x01
#define COMP_G 0x02
#define COMP_B 0x04
#define COMP_A 0x08
#define COMP_Y 0x10
#define COMP_U 0x20
#define COMP_V 0x40
typedef struct ThreadData {
AVFrame *in;
AVFrame *out;
} ThreadData;
typedef struct NegateContext {
const AVClass *class;
int negate_alpha;
int max;
int requested_components;
int components;
int planes;
int step;
int nb_planes;
int linesize[4];
int width[4];
int height[4];
uint8_t rgba_map[4];
void (*negate)(const uint8_t *src, uint8_t *dst,
ptrdiff_t slinesize, ptrdiff_t dlinesize,
int w, int h, int max, int step,
int components);
} NegateContext;
#define OFFSET(x) offsetof(NegateContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
static const AVOption negate_options[] = {
{ "components", "set components to negate", OFFSET(requested_components), AV_OPT_TYPE_FLAGS, {.i64=0x77}, 1, 0xff, FLAGS, .unit = "flags"},
{ "y", "set luma component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_Y}, 0, 0, FLAGS, .unit = "flags"},
{ "u", "set u component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_U}, 0, 0, FLAGS, .unit = "flags"},
{ "v", "set v component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_V}, 0, 0, FLAGS, .unit = "flags"},
{ "r", "set red component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_R}, 0, 0, FLAGS, .unit = "flags"},
{ "g", "set green component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_G}, 0, 0, FLAGS, .unit = "flags"},
{ "b", "set blue component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_B}, 0, 0, FLAGS, .unit = "flags"},
{ "a", "set alpha component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_A}, 0, 0, FLAGS, .unit = "flags"},
{ "negate_alpha", NULL, OFFSET(negate_alpha), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(negate);
static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
AV_PIX_FMT_YUVJ440P,
AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV420P9,
AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV420P10, 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_YUV444P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV420P16,
AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA420P10,
AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA422P12,
AV_PIX_FMT_YUVA444P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA420P16,
AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA,
AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA,
AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
AV_PIX_FMT_RGB48, AV_PIX_FMT_RGBA64,
AV_PIX_FMT_BGR48, AV_PIX_FMT_BGRA64,
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP14,
AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14,
AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP12,
AV_PIX_FMT_GBRAP16,
AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10,
AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
AV_PIX_FMT_NONE
};
static void negate8(const uint8_t *src, uint8_t *dst,
ptrdiff_t slinesize, ptrdiff_t dlinesize,
int w, int h, int max, int step,
int components)
{
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++)
dst[x] = 255 - src[x];
dst += dlinesize;
src += slinesize;
}
}
static void negate_packed8(const uint8_t *ssrc, uint8_t *ddst,
ptrdiff_t slinesize, ptrdiff_t dlinesize,
int w, int h, int max, int step,
int components)
{
for (int y = 0; y < h; y++) {
const uint8_t *src = ssrc + y * slinesize;
uint8_t *dst = ddst + y * dlinesize;
for (int x = 0; x < w; x++) {
switch (step) {
case 4: dst[3] = components & 8 ? 255 - src[3] : src[3];
case 3: dst[2] = components & 4 ? 255 - src[2] : src[2];
case 2: dst[1] = components & 2 ? 255 - src[1] : src[1];
default: dst[0] = components & 1 ? 255 - src[0] : src[0];
}
src += step;
dst += step;
}
}
}
static void negate16(const uint8_t *ssrc, uint8_t *ddst,
ptrdiff_t slinesize, ptrdiff_t dlinesize,
int w, int h, int max, int step,
int components)
{
const uint16_t *src = (const uint16_t *)ssrc;
uint16_t *dst = (uint16_t *)ddst;
dlinesize /= 2;
slinesize /= 2;
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++)
dst[x] = max - src[x];
dst += dlinesize;
src += slinesize;
}
}
static void negate_packed16(const uint8_t *ssrc, uint8_t *ddst,
ptrdiff_t slinesize, ptrdiff_t dlinesize,
int w, int h, int max, int step,
int components)
{
for (int y = 0; y < h; y++) {
const uint16_t *src = (const uint16_t *)(ssrc + y * slinesize);
uint16_t *dst = (uint16_t *)(ddst + y * dlinesize);
for (int x = 0; x < w; x++) {
switch (step) {
case 4: dst[3] = components & 8 ? max - src[3] : src[3];
case 3: dst[2] = components & 4 ? max - src[2] : src[2];
case 2: dst[1] = components & 2 ? max - src[1] : src[1];
default: dst[0] = components & 1 ? max - src[0] : src[0];
}
src += step;
dst += step;
}
}
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
NegateContext *s = ctx->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
int depth, vsub, hsub, ret, is_packed;
int comp_avail;
s->planes = s->negate_alpha ? 0xF : 0x7;
is_packed = !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
(desc->nb_components > 1);
if (s->requested_components != 0x77) {
comp_avail = ((desc->flags & AV_PIX_FMT_FLAG_RGB) ? COMP_R|COMP_G|COMP_B :
COMP_Y |
((desc->nb_components > 2) ? COMP_U|COMP_V : 0)) |
((desc->flags & AV_PIX_FMT_FLAG_ALPHA) ? COMP_A : 0);
if (s->requested_components & ~comp_avail) {
av_log(ctx, AV_LOG_ERROR, "Requested components not available.\n");
return AVERROR(EINVAL);
}
s->planes = 0;
if (!(desc->flags & AV_PIX_FMT_FLAG_RGB)) {
if (s->requested_components & COMP_Y)
s->planes |= 1;
if (s->requested_components & COMP_U)
s->planes |= 2;
if (s->requested_components & COMP_V)
s->planes |= 4;
if (s->requested_components & COMP_A)
s->planes |= 8;
} else {
if (s->requested_components & COMP_R)
s->planes |= 4;
if (s->requested_components & COMP_G)
s->planes |= 1;
if (s->requested_components & COMP_B)
s->planes |= 2;
if (s->requested_components & COMP_A)
s->planes |= 8;
}
}
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
s->components = 0;
if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
ff_fill_rgba_map(s->rgba_map, inlink->format);
if (s->requested_components & COMP_R)
s->components |= 1 << s->rgba_map[0];
if (s->requested_components & COMP_G)
s->components |= 1 << s->rgba_map[1];
if (s->requested_components & COMP_B)
s->components |= 1 << s->rgba_map[2];
if (s->requested_components & COMP_A)
s->components |= 1 << s->rgba_map[3];
}
if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
return ret;
depth = desc->comp[0].depth;
hsub = desc->log2_chroma_w;
vsub = desc->log2_chroma_h;
s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
s->height[0] = s->height[3] = inlink->h;
s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
s->width[0] = s->width[3] = inlink->w;
s->negate = depth <= 8 ? negate8 : negate16;
if (is_packed) {
s->negate = depth <= 8 ? negate_packed8 : negate_packed16;
s->planes = 1;
}
s->max = (1 << depth) - 1;
s->step = av_get_bits_per_pixel(desc) >> 3;
if (depth > 8)
s->step = s->step >> 1;
return 0;
}
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
NegateContext *s = ctx->priv;
ThreadData *td = arg;
AVFrame *in = td->in;
AVFrame *out = td->out;
for (int p = 0; p < s->nb_planes; p++) {
const int h = s->height[p];
const int slice_start = (h * jobnr) / nb_jobs;
const int slice_end = (h * (jobnr+1)) / nb_jobs;
if (!((1 << p) & s->planes)) {
if (out != in)
av_image_copy_plane(out->data[p] + slice_start * out->linesize[p],
out->linesize[p],
in->data[p] + slice_start * in->linesize[p],
in->linesize[p],
s->linesize[p], slice_end - slice_start);
continue;
}
s->negate(in->data[p] + slice_start * in->linesize[p],
out->data[p] + slice_start * out->linesize[p],
in->linesize[p], out->linesize[p],
s->width[p], slice_end - slice_start,
s->max, s->step, s->components);
}
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
NegateContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
ThreadData td;
AVFrame *out;
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);
}
td.out = out;
td.in = in;
ff_filter_execute(ctx, filter_slice, &td, NULL,
FFMIN(s->height[2], ff_filter_get_nb_threads(ctx)));
if (out != in)
av_frame_free(&in);
return ff_filter_frame(outlink, out);
}
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
char *res, int res_len, int flags)
{
NegateContext *s = ctx->priv;
int old_planes = s->planes;
int ret;
ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
if (ret < 0)
return ret;
ret = config_input(ctx->inputs[0]);
if (ret < 0)
s->planes = old_planes;
return ret;
}
static const AVFilterPad inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = filter_frame,
.config_props = config_input,
},
};
const AVFilter ff_vf_negate = {
.name = "negate",
.description = NULL_IF_CONFIG_SMALL("Negate input video."),
.priv_size = sizeof(NegateContext),
.priv_class = &negate_class,
FILTER_INPUTS(inputs),
FILTER_OUTPUTS(ff_video_default_filterpad),
FILTER_PIXFMTS_ARRAY(pix_fmts),
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
.process_command = process_command,
};
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