mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
371 lines
12 KiB
C
371 lines
12 KiB
C
/*
|
|
* 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 "libavutil/imgutils.h"
|
|
#include "libavutil/pixdesc.h"
|
|
#include "libavutil/opt.h"
|
|
#include "avfilter.h"
|
|
#include "formats.h"
|
|
#include "internal.h"
|
|
#include "video.h"
|
|
#include "framesync.h"
|
|
|
|
typedef struct ThreadData {
|
|
AVFrame *filtered, *source, *reference, *dst;
|
|
} ThreadData;
|
|
|
|
typedef struct LimitDiffContext {
|
|
const AVClass *class;
|
|
|
|
float threshold;
|
|
float elasticity;
|
|
int reference;
|
|
int planes;
|
|
|
|
int thr1, thr2;
|
|
|
|
int linesize[4];
|
|
int planewidth[4], planeheight[4];
|
|
int nb_planes;
|
|
int depth;
|
|
FFFrameSync fs;
|
|
|
|
void (*limitdiff)(const uint8_t *filtered, uint8_t *dst,
|
|
const uint8_t *source, const uint8_t *reference,
|
|
int thr1, int thr2, int w, int depth);
|
|
} LimitDiffContext;
|
|
|
|
#define OFFSET(x) offsetof(LimitDiffContext, x)
|
|
#define TFLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
|
|
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
|
|
|
|
static const AVOption limitdiff_options[] = {
|
|
{ "threshold", "set the threshold", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=1/255.f}, 0, 1, TFLAGS },
|
|
{ "elasticity", "set the elasticity", OFFSET(elasticity), AV_OPT_TYPE_FLOAT, {.dbl=2.f}, 0, 10, TFLAGS },
|
|
{ "reference", "enable reference stream", OFFSET(reference), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
|
|
{ "planes", "set the planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, TFLAGS },
|
|
{ NULL }
|
|
};
|
|
|
|
static const enum AVPixelFormat pix_fmts[] = {
|
|
AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
|
|
AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
|
|
AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
|
|
AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
|
|
AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
|
|
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_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
|
|
AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
|
|
AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
|
|
AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
|
|
AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
|
|
AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
|
|
AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
|
|
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
|
|
AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
|
|
AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, 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 limitdiff8(const uint8_t *filtered, uint8_t *dst,
|
|
const uint8_t *source, const uint8_t *reference,
|
|
int thr1, int thr2, int w, int depth)
|
|
{
|
|
for (int x = 0; x < w; x++) {
|
|
const int diff = filtered[x] - source[x];
|
|
const int diff_ref = FFABS(filtered[x] - reference[x]);
|
|
|
|
if (diff_ref <= thr1)
|
|
dst[x] = filtered[x];
|
|
else if (diff_ref >= thr2)
|
|
dst[x] = source[x];
|
|
else
|
|
dst[x] = av_clip_uint8(source[x] + diff * (thr2 - diff_ref) / (thr2 - thr1));
|
|
}
|
|
}
|
|
|
|
static void limitdiff16(const uint8_t *ffiltered, uint8_t *ddst,
|
|
const uint8_t *ssource, const uint8_t *rreference,
|
|
int thr1, int thr2, int w, int depth)
|
|
{
|
|
const uint16_t *source = (const uint16_t *)ssource;
|
|
const uint16_t *filtered = (const uint16_t *)ffiltered;
|
|
const uint16_t *reference = (const uint16_t *)rreference;
|
|
uint16_t *dst = (uint16_t *)ddst;
|
|
|
|
for (int x = 0; x < w; x++) {
|
|
const int diff = filtered[x] - source[x];
|
|
const int diff_ref = FFABS(filtered[x] - reference[x]);
|
|
|
|
if (diff_ref <= thr1)
|
|
dst[x] = filtered[x];
|
|
else if (diff_ref >= thr2)
|
|
dst[x] = source[x];
|
|
else
|
|
dst[x] = av_clip_uintp2_c(source[x] + diff * (thr2 - diff_ref) / (thr2 - thr1), depth);
|
|
}
|
|
}
|
|
|
|
static int config_input(AVFilterLink *inlink)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
LimitDiffContext *s = ctx->priv;
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
|
int vsub, hsub, ret;
|
|
|
|
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
|
|
|
|
if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
|
|
return ret;
|
|
|
|
hsub = desc->log2_chroma_w;
|
|
vsub = desc->log2_chroma_h;
|
|
s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
|
|
s->planeheight[0] = s->planeheight[3] = inlink->h;
|
|
s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
|
|
s->planewidth[0] = s->planewidth[3] = inlink->w;
|
|
|
|
s->depth = desc->comp[0].depth;
|
|
s->thr1 = s->threshold * ((1 << s->depth) - 1);
|
|
s->thr2 = s->thr1 * s->elasticity;
|
|
|
|
if (desc->comp[0].depth == 8)
|
|
s->limitdiff = limitdiff8;
|
|
else
|
|
s->limitdiff = limitdiff16;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int limitdiff_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
|
|
{
|
|
LimitDiffContext *s = ctx->priv;
|
|
const int depth = s->depth;
|
|
ThreadData *td = arg;
|
|
|
|
for (int p = 0; p < s->nb_planes; p++) {
|
|
const ptrdiff_t filtered_linesize = td->filtered->linesize[p];
|
|
const ptrdiff_t source_linesize = td->source->linesize[p];
|
|
const ptrdiff_t reference_linesize = td->reference->linesize[p];
|
|
const ptrdiff_t dst_linesize = td->dst->linesize[p];
|
|
const int thr1 = s->thr1;
|
|
const int thr2 = s->thr2;
|
|
const int w = s->planewidth[p];
|
|
const int h = s->planeheight[p];
|
|
const int slice_start = (h * jobnr) / nb_jobs;
|
|
const int slice_end = (h * (jobnr+1)) / nb_jobs;
|
|
const uint8_t *filtered = td->filtered->data[p] + slice_start * filtered_linesize;
|
|
const uint8_t *source = td->source->data[p] + slice_start * source_linesize;
|
|
const uint8_t *reference = td->reference->data[p] + slice_start * reference_linesize;
|
|
uint8_t *dst = td->dst->data[p] + slice_start * dst_linesize;
|
|
|
|
if (!((1 << p) & s->planes)) {
|
|
av_image_copy_plane(dst, dst_linesize, filtered, filtered_linesize,
|
|
s->linesize[p], slice_end - slice_start);
|
|
continue;
|
|
}
|
|
|
|
for (int y = slice_start; y < slice_end; y++) {
|
|
s->limitdiff(filtered, dst, source, reference, thr1, thr2, w, depth);
|
|
|
|
dst += dst_linesize;
|
|
filtered += filtered_linesize;
|
|
source += source_linesize;
|
|
reference += reference_linesize;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int process_frame(FFFrameSync *fs)
|
|
{
|
|
AVFilterContext *ctx = fs->parent;
|
|
LimitDiffContext *s = fs->opaque;
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
|
AVFrame *out, *filtered, *source, *reference = NULL;
|
|
int ret;
|
|
|
|
if ((ret = ff_framesync_get_frame(&s->fs, 0, &filtered, 0)) < 0 ||
|
|
(ret = ff_framesync_get_frame(&s->fs, 1, &source, 0)) < 0)
|
|
return ret;
|
|
if (s->reference) {
|
|
if ((ret = ff_framesync_get_frame(&s->fs, 2, &reference, 0)) < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (ctx->is_disabled) {
|
|
out = av_frame_clone(filtered);
|
|
if (!out)
|
|
return AVERROR(ENOMEM);
|
|
} else {
|
|
ThreadData td;
|
|
|
|
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
|
if (!out)
|
|
return AVERROR(ENOMEM);
|
|
av_frame_copy_props(out, filtered);
|
|
|
|
td.filtered = filtered;
|
|
td.source = source;
|
|
td.reference = reference ? reference : source;
|
|
td.dst = out;
|
|
|
|
ff_filter_execute(ctx, limitdiff_slice, &td, NULL,
|
|
FFMIN(s->planeheight[0], ff_filter_get_nb_threads(ctx)));
|
|
}
|
|
out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
|
|
|
|
return ff_filter_frame(outlink, out);
|
|
}
|
|
|
|
static int config_output(AVFilterLink *outlink)
|
|
{
|
|
AVFilterContext *ctx = outlink->src;
|
|
LimitDiffContext *s = ctx->priv;
|
|
AVFilterLink *filtered = ctx->inputs[0];
|
|
AVFilterLink *source = ctx->inputs[1];
|
|
FFFrameSyncIn *in;
|
|
int ret;
|
|
|
|
if (filtered->w != source->w || filtered->h != source->h) {
|
|
av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
|
|
"(size %dx%d) do not match the corresponding "
|
|
"second input link %s parameters (%dx%d)\n",
|
|
ctx->input_pads[0].name, filtered->w, filtered->h,
|
|
ctx->input_pads[1].name, source->w, source->h);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (s->reference) {
|
|
AVFilterLink *reference = ctx->inputs[2];
|
|
|
|
if (filtered->w != reference->w || filtered->h != reference->h) {
|
|
av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
|
|
"(size %dx%d) do not match the corresponding "
|
|
"third input link %s parameters (%dx%d)\n",
|
|
ctx->input_pads[0].name, filtered->w, filtered->h,
|
|
ctx->input_pads[1].name, reference->w, reference->h);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
|
|
outlink->w = filtered->w;
|
|
outlink->h = filtered->h;
|
|
outlink->sample_aspect_ratio = filtered->sample_aspect_ratio;
|
|
outlink->frame_rate = filtered->frame_rate;
|
|
|
|
if ((ret = ff_framesync_init(&s->fs, ctx, 2 + !!s->reference)) < 0)
|
|
return ret;
|
|
|
|
in = s->fs.in;
|
|
in[0].time_base = filtered->time_base;
|
|
in[1].time_base = source->time_base;
|
|
if (s->reference)
|
|
in[2].time_base = ctx->inputs[2]->time_base;
|
|
in[0].sync = 1;
|
|
in[0].before = EXT_STOP;
|
|
in[0].after = EXT_INFINITY;
|
|
in[1].sync = 1;
|
|
in[1].before = EXT_STOP;
|
|
in[1].after = EXT_INFINITY;
|
|
if (s->reference) {
|
|
in[2].sync = 1;
|
|
in[2].before = EXT_STOP;
|
|
in[2].after = EXT_INFINITY;
|
|
}
|
|
s->fs.opaque = s;
|
|
s->fs.on_event = process_frame;
|
|
|
|
ret = ff_framesync_configure(&s->fs);
|
|
outlink->time_base = s->fs.time_base;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int activate(AVFilterContext *ctx)
|
|
{
|
|
LimitDiffContext *s = ctx->priv;
|
|
return ff_framesync_activate(&s->fs);
|
|
}
|
|
|
|
static av_cold int init(AVFilterContext *ctx)
|
|
{
|
|
const LimitDiffContext *s = ctx->priv;
|
|
AVFilterPad pad = {
|
|
.name = "filtered",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_input,
|
|
};
|
|
int ret;
|
|
|
|
if ((ret = ff_append_inpad(ctx, &pad)) < 0)
|
|
return ret;
|
|
|
|
pad.name = "source";
|
|
pad.config_props = NULL;
|
|
if ((ret = ff_append_inpad(ctx, &pad)) < 0)
|
|
return ret;
|
|
|
|
if (s->reference) {
|
|
pad.name = "reference";
|
|
pad.config_props = NULL;
|
|
if ((ret = ff_append_inpad(ctx, &pad)) < 0)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
|
{
|
|
LimitDiffContext *s = ctx->priv;
|
|
|
|
ff_framesync_uninit(&s->fs);
|
|
}
|
|
|
|
static const AVFilterPad limitdiff_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_output,
|
|
},
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(limitdiff);
|
|
|
|
const AVFilter ff_vf_limitdiff = {
|
|
.name = "limitdiff",
|
|
.description = NULL_IF_CONFIG_SMALL("Apply filtering with limiting difference."),
|
|
.priv_class = &limitdiff_class,
|
|
.priv_size = sizeof(LimitDiffContext),
|
|
.init = init,
|
|
.uninit = uninit,
|
|
.activate = activate,
|
|
FILTER_OUTPUTS(limitdiff_outputs),
|
|
FILTER_PIXFMTS_ARRAY(pix_fmts),
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
|
|
AVFILTER_FLAG_SLICE_THREADS |
|
|
AVFILTER_FLAG_DYNAMIC_INPUTS,
|
|
.process_command = ff_filter_process_command,
|
|
};
|