mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
253 lines
7.8 KiB
C
253 lines
7.8 KiB
C
/*
|
|
* Copyright (c) 2019 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/intreadwrite.h"
|
|
#include "libavutil/opt.h"
|
|
#include "libavutil/pixdesc.h"
|
|
|
|
#include "avfilter.h"
|
|
#include "formats.h"
|
|
#include "internal.h"
|
|
#include "video.h"
|
|
|
|
typedef struct LagfunContext {
|
|
const AVClass *class;
|
|
const AVPixFmtDescriptor *desc;
|
|
float decay;
|
|
int planes;
|
|
|
|
int depth;
|
|
int nb_planes;
|
|
int linesize[4];
|
|
int height[4];
|
|
|
|
AVFrame *old;
|
|
|
|
int (*lagfun)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
|
|
} LagfunContext;
|
|
|
|
static int query_formats(AVFilterContext *ctx)
|
|
{
|
|
static const enum AVPixelFormat pixel_fmts[] = {
|
|
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_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_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
|
|
AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
|
|
AV_PIX_FMT_NONE
|
|
};
|
|
AVFilterFormats *formats = ff_make_format_list(pixel_fmts);
|
|
if (!formats)
|
|
return AVERROR(ENOMEM);
|
|
return ff_set_common_formats(ctx, formats);
|
|
}
|
|
|
|
typedef struct ThreadData {
|
|
AVFrame *in, *out, *old;
|
|
} ThreadData;
|
|
|
|
static int lagfun_frame8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
|
|
{
|
|
LagfunContext *s = ctx->priv;
|
|
const float decay = s->decay;
|
|
ThreadData *td = arg;
|
|
AVFrame *in = td->in;
|
|
AVFrame *out = td->out;
|
|
AVFrame *old = td->old;
|
|
|
|
for (int p = 0; p < s->nb_planes; p++) {
|
|
const int slice_start = (s->height[p] * jobnr) / nb_jobs;
|
|
const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs;
|
|
const uint8_t *src = in->data[p] + slice_start * in->linesize[p];
|
|
const uint8_t *osrc = old->data[p] + slice_start * old->linesize[p];
|
|
uint8_t *dst = out->data[p] + slice_start * out->linesize[p];
|
|
|
|
if (!((1 << p) & s->planes)) {
|
|
av_image_copy_plane(dst, out->linesize[p],
|
|
src, in->linesize[p],
|
|
s->linesize[p], slice_end - slice_start);
|
|
continue;
|
|
}
|
|
|
|
for (int y = slice_start; y < slice_end; y++) {
|
|
for (int x = 0; x < s->linesize[p]; x++)
|
|
dst[x] = FFMAX(src[x], osrc[x] * decay);
|
|
|
|
src += in->linesize[p];
|
|
osrc += old->linesize[p];
|
|
dst += out->linesize[p];
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lagfun_frame16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
|
|
{
|
|
LagfunContext *s = ctx->priv;
|
|
const float decay = s->decay;
|
|
ThreadData *td = arg;
|
|
AVFrame *in = td->in;
|
|
AVFrame *out = td->out;
|
|
AVFrame *old = td->old;
|
|
|
|
for (int p = 0; p < s->nb_planes; p++) {
|
|
const int slice_start = (s->height[p] * jobnr) / nb_jobs;
|
|
const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs;
|
|
const uint16_t *src = (const uint16_t *)in->data[p] + slice_start * in->linesize[p] / 2;
|
|
const uint16_t *osrc = (const uint16_t *)old->data[p] + slice_start * old->linesize[p] / 2;
|
|
uint16_t *dst = (uint16_t *)out->data[p] + slice_start * out->linesize[p] / 2;
|
|
|
|
if (!((1 << p) & s->planes)) {
|
|
av_image_copy_plane((uint8_t *)dst, out->linesize[p],
|
|
(uint8_t *)src, in->linesize[p],
|
|
s->linesize[p], slice_end - slice_start);
|
|
continue;
|
|
}
|
|
|
|
for (int y = slice_start; y < slice_end; y++) {
|
|
for (int x = 0; x < s->linesize[p] / 2; x++)
|
|
dst[x] = FFMAX(src[x], osrc[x] * decay);
|
|
|
|
src += in->linesize[p] / 2;
|
|
osrc += old->linesize[p] / 2;
|
|
dst += out->linesize[p] / 2;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int config_output(AVFilterLink *outlink)
|
|
{
|
|
AVFilterContext *ctx = outlink->src;
|
|
LagfunContext *s = ctx->priv;
|
|
AVFilterLink *inlink = ctx->inputs[0];
|
|
int ret;
|
|
|
|
s->desc = av_pix_fmt_desc_get(outlink->format);
|
|
if (!s->desc)
|
|
return AVERROR_BUG;
|
|
s->nb_planes = av_pix_fmt_count_planes(outlink->format);
|
|
s->depth = s->desc->comp[0].depth;
|
|
s->lagfun = s->depth <= 8 ? lagfun_frame8 : lagfun_frame16;
|
|
|
|
if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
|
|
return ret;
|
|
|
|
s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
|
|
s->height[0] = s->height[3] = inlink->h;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
|
LagfunContext *s = ctx->priv;
|
|
ThreadData td;
|
|
AVFrame *out;
|
|
|
|
if (!s->old) {
|
|
s->old = av_frame_clone(in);
|
|
return ff_filter_frame(outlink, in);
|
|
}
|
|
|
|
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
|
if (!out) {
|
|
av_frame_free(&in);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
out->pts = in->pts;
|
|
|
|
td.out = out;
|
|
td.in = in;
|
|
td.old = s->old;
|
|
ctx->internal->execute(ctx, s->lagfun, &td, NULL, FFMIN(s->height[1], ff_filter_get_nb_threads(ctx)));
|
|
|
|
av_frame_free(&s->old);
|
|
av_frame_free(&in);
|
|
s->old = av_frame_clone(out);
|
|
return ff_filter_frame(outlink, out);
|
|
}
|
|
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
|
{
|
|
LagfunContext *s = ctx->priv;
|
|
|
|
av_frame_free(&s->old);
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(LagfunContext, x)
|
|
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
|
|
|
|
static const AVOption lagfun_options[] = {
|
|
{ "decay", "set decay", OFFSET(decay), AV_OPT_TYPE_FLOAT, {.dbl=.95}, 0, 1, FLAGS },
|
|
{ "planes", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=15}, 0, 15, FLAGS },
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVFilterPad inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.filter_frame = filter_frame,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVFilterPad outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_output,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(lagfun);
|
|
|
|
AVFilter ff_vf_lagfun = {
|
|
.name = "lagfun",
|
|
.description = NULL_IF_CONFIG_SMALL("Slowly update darker pixels."),
|
|
.priv_size = sizeof(LagfunContext),
|
|
.priv_class = &lagfun_class,
|
|
.query_formats = query_formats,
|
|
.uninit = uninit,
|
|
.outputs = outputs,
|
|
.inputs = inputs,
|
|
.flags = AVFILTER_FLAG_SLICE_THREADS,
|
|
};
|