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https://github.com/FFmpeg/FFmpeg.git
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790f793844
There are lots of files that don't need it: The number of object files that actually need it went down from 2011 to 884 here. Keep it for external users in order to not cause breakages. Also improve the other headers a bit while just at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
446 lines
14 KiB
C
446 lines
14 KiB
C
/*
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* Copyright (c) 2021 Paul B Mahol
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* Calculate the Identity between two input videos.
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*/
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#include "config_components.h"
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#include "libavutil/avstring.h"
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#include "libavutil/mem.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.h"
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#include "drawutils.h"
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#include "framesync.h"
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#include "internal.h"
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#include "scene_sad.h"
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typedef struct IdentityContext {
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const AVClass *class;
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FFFrameSync fs;
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double score, min_score, max_score, score_comp[4];
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uint64_t nb_frames;
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int is_rgb;
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int is_msad;
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uint8_t rgba_map[4];
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int max[4];
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char comps[4];
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int nb_components;
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int nb_threads;
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int planewidth[4];
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int planeheight[4];
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uint64_t **scores;
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unsigned (*filter_line)(const uint8_t *buf, const uint8_t *ref, int w);
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int (*filter_slice)(AVFilterContext *ctx, void *arg,
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int jobnr, int nb_jobs);
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ff_scene_sad_fn sad;
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} IdentityContext;
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#define OFFSET(x) offsetof(IdentityContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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static unsigned identity_line_8bit(const uint8_t *main_line, const uint8_t *ref_line, int outw)
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{
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unsigned score = 0;
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for (int j = 0; j < outw; j++)
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score += main_line[j] == ref_line[j];
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return score;
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}
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static unsigned identity_line_16bit(const uint8_t *mmain_line, const uint8_t *rref_line, int outw)
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{
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const uint16_t *main_line = (const uint16_t *)mmain_line;
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const uint16_t *ref_line = (const uint16_t *)rref_line;
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unsigned score = 0;
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for (int j = 0; j < outw; j++)
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score += main_line[j] == ref_line[j];
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return score;
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}
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typedef struct ThreadData {
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const uint8_t *main_data[4];
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const uint8_t *ref_data[4];
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int main_linesize[4];
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int ref_linesize[4];
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int planewidth[4];
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int planeheight[4];
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uint64_t **score;
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int nb_components;
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} ThreadData;
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static
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int compute_images_msad(AVFilterContext *ctx, void *arg,
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int jobnr, int nb_jobs)
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{
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IdentityContext *s = ctx->priv;
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ThreadData *td = arg;
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uint64_t *score = td->score[jobnr];
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for (int c = 0; c < td->nb_components; c++) {
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const int outw = td->planewidth[c];
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const int outh = td->planeheight[c];
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const int slice_start = (outh * jobnr) / nb_jobs;
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const int slice_end = (outh * (jobnr+1)) / nb_jobs;
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const int ref_linesize = td->ref_linesize[c];
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const int main_linesize = td->main_linesize[c];
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const uint8_t *main_line = td->main_data[c] + main_linesize * slice_start;
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const uint8_t *ref_line = td->ref_data[c] + ref_linesize * slice_start;
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uint64_t m = 0;
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s->sad(main_line, main_linesize, ref_line, ref_linesize,
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outw, slice_end - slice_start, &m);
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score[c] = m;
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}
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return 0;
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}
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static
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int compute_images_identity(AVFilterContext *ctx, void *arg,
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int jobnr, int nb_jobs)
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{
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IdentityContext *s = ctx->priv;
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ThreadData *td = arg;
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uint64_t *score = td->score[jobnr];
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for (int c = 0; c < td->nb_components; c++) {
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const int outw = td->planewidth[c];
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const int outh = td->planeheight[c];
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const int slice_start = (outh * jobnr) / nb_jobs;
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const int slice_end = (outh * (jobnr+1)) / nb_jobs;
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const int ref_linesize = td->ref_linesize[c];
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const int main_linesize = td->main_linesize[c];
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const uint8_t *main_line = td->main_data[c] + main_linesize * slice_start;
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const uint8_t *ref_line = td->ref_data[c] + ref_linesize * slice_start;
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uint64_t m = 0;
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for (int i = slice_start; i < slice_end; i++) {
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m += s->filter_line(main_line, ref_line, outw);
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ref_line += ref_linesize;
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main_line += main_linesize;
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}
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score[c] = m;
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}
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return 0;
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}
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static void set_meta(AVFilterContext *ctx,
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AVDictionary **metadata, const char *key, char comp, float d)
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{
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char value[128];
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snprintf(value, sizeof(value), "%f", d);
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if (comp) {
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char key2[128];
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snprintf(key2, sizeof(key2), "lavfi.%s.%s%s%c",
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ctx->filter->name, ctx->filter->name, key, comp);
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av_dict_set(metadata, key2, value, 0);
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} else {
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char key2[128];
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snprintf(key2, sizeof(key2), "lavfi.%s.%s%s",
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ctx->filter->name, ctx->filter->name, key);
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av_dict_set(metadata, key2, value, 0);
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}
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}
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static int do_identity(FFFrameSync *fs)
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{
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AVFilterContext *ctx = fs->parent;
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IdentityContext *s = ctx->priv;
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AVFrame *master, *ref;
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double comp_score[4], score = 0.;
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uint64_t comp_sum[4] = { 0 };
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AVDictionary **metadata;
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ThreadData td;
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int ret;
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ret = ff_framesync_dualinput_get(fs, &master, &ref);
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if (ret < 0)
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return ret;
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if (ctx->is_disabled || !ref)
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return ff_filter_frame(ctx->outputs[0], master);
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metadata = &master->metadata;
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td.nb_components = s->nb_components;
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td.score = s->scores;
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for (int c = 0; c < s->nb_components; c++) {
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td.main_data[c] = master->data[c];
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td.ref_data[c] = ref->data[c];
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td.main_linesize[c] = master->linesize[c];
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td.ref_linesize[c] = ref->linesize[c];
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td.planewidth[c] = s->planewidth[c];
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td.planeheight[c] = s->planeheight[c];
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}
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ff_filter_execute(ctx, s->filter_slice, &td, NULL,
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FFMIN(s->planeheight[1], s->nb_threads));
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for (int j = 0; j < s->nb_threads; j++) {
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for (int c = 0; c < s->nb_components; c++)
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comp_sum[c] += s->scores[j][c];
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}
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for (int c = 0; c < s->nb_components; c++)
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comp_score[c] = comp_sum[c] / ((double)s->planewidth[c] * s->planeheight[c]);
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for (int c = 0; c < s->nb_components && s->is_msad; c++)
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comp_score[c] /= (double)s->max[c];
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for (int c = 0; c < s->nb_components; c++)
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score += comp_score[c];
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score /= s->nb_components;
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s->min_score = FFMIN(s->min_score, score);
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s->max_score = FFMAX(s->max_score, score);
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s->score += score;
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for (int j = 0; j < s->nb_components; j++)
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s->score_comp[j] += comp_score[j];
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s->nb_frames++;
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for (int j = 0; j < s->nb_components; j++) {
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int c = s->is_rgb ? s->rgba_map[j] : j;
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set_meta(ctx, metadata, ".", s->comps[j], comp_score[c]);
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}
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set_meta(ctx, metadata, "_avg", 0, score);
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return ff_filter_frame(ctx->outputs[0], master);
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}
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static av_cold int init(AVFilterContext *ctx)
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{
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IdentityContext *s = ctx->priv;
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s->fs.on_event = do_identity;
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return 0;
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}
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static const enum AVPixelFormat pix_fmts[] = {
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AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
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#define PF_NOALPHA(suf) AV_PIX_FMT_YUV420##suf, AV_PIX_FMT_YUV422##suf, AV_PIX_FMT_YUV444##suf
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#define PF_ALPHA(suf) AV_PIX_FMT_YUVA420##suf, AV_PIX_FMT_YUVA422##suf, AV_PIX_FMT_YUVA444##suf
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#define PF(suf) PF_NOALPHA(suf), PF_ALPHA(suf)
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PF(P), PF(P9), PF(P10), PF_NOALPHA(P12), PF_NOALPHA(P14), PF(P16),
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AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
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AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
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AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
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AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
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AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
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AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
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AV_PIX_FMT_NONE
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};
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static int config_input_ref(AVFilterLink *inlink)
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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AVFilterContext *ctx = inlink->dst;
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IdentityContext *s = ctx->priv;
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s->nb_threads = ff_filter_get_nb_threads(ctx);
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s->nb_components = desc->nb_components;
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if (ctx->inputs[0]->w != ctx->inputs[1]->w ||
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ctx->inputs[0]->h != ctx->inputs[1]->h) {
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av_log(ctx, AV_LOG_ERROR, "Width and height of input videos must be same.\n");
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return AVERROR(EINVAL);
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}
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s->is_rgb = ff_fill_rgba_map(s->rgba_map, inlink->format) >= 0;
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s->comps[0] = s->is_rgb ? 'R' : 'Y' ;
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s->comps[1] = s->is_rgb ? 'G' : 'U' ;
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s->comps[2] = s->is_rgb ? 'B' : 'V' ;
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s->comps[3] = 'A';
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s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
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s->planeheight[0] = s->planeheight[3] = inlink->h;
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s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
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s->planewidth[0] = s->planewidth[3] = inlink->w;
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s->scores = av_calloc(s->nb_threads, sizeof(*s->scores));
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if (!s->scores)
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return AVERROR(ENOMEM);
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for (int t = 0; t < s->nb_threads; t++) {
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s->scores[t] = av_calloc(s->nb_components, sizeof(*s->scores[0]));
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if (!s->scores[t])
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return AVERROR(ENOMEM);
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}
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s->min_score = +INFINITY;
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s->max_score = -INFINITY;
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s->max[0] = (1 << desc->comp[0].depth) - 1;
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s->max[1] = (1 << desc->comp[1].depth) - 1;
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s->max[2] = (1 << desc->comp[2].depth) - 1;
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s->max[3] = (1 << desc->comp[3].depth) - 1;
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s->is_msad = !strcmp(ctx->filter->name, "msad");
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s->filter_slice = !s->is_msad ? compute_images_identity : compute_images_msad;
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s->filter_line = desc->comp[0].depth > 8 ? identity_line_16bit : identity_line_8bit;
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s->sad = ff_scene_sad_get_fn(desc->comp[0].depth <= 8 ? 8 : 16);
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if (!s->sad)
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return AVERROR(EINVAL);
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return 0;
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}
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static int config_output(AVFilterLink *outlink)
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{
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AVFilterContext *ctx = outlink->src;
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IdentityContext *s = ctx->priv;
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AVFilterLink *mainlink = ctx->inputs[0];
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int ret;
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ret = ff_framesync_init_dualinput(&s->fs, ctx);
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if (ret < 0)
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return ret;
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outlink->w = mainlink->w;
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outlink->h = mainlink->h;
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outlink->time_base = mainlink->time_base;
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outlink->sample_aspect_ratio = mainlink->sample_aspect_ratio;
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outlink->frame_rate = mainlink->frame_rate;
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if ((ret = ff_framesync_configure(&s->fs)) < 0)
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return ret;
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outlink->time_base = s->fs.time_base;
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if (av_cmp_q(mainlink->time_base, outlink->time_base) ||
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av_cmp_q(ctx->inputs[1]->time_base, outlink->time_base))
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av_log(ctx, AV_LOG_WARNING, "not matching timebases found between first input: %d/%d and second input %d/%d, results may be incorrect!\n",
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mainlink->time_base.num, mainlink->time_base.den,
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ctx->inputs[1]->time_base.num, ctx->inputs[1]->time_base.den);
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return 0;
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}
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static int activate(AVFilterContext *ctx)
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{
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IdentityContext *s = ctx->priv;
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return ff_framesync_activate(&s->fs);
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}
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static av_cold void uninit(AVFilterContext *ctx)
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{
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IdentityContext *s = ctx->priv;
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if (s->nb_frames > 0) {
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char buf[256];
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buf[0] = 0;
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for (int j = 0; j < s->nb_components; j++) {
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int c = s->is_rgb ? s->rgba_map[j] : j;
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av_strlcatf(buf, sizeof(buf), " %c:%f", s->comps[j], s->score_comp[c] / s->nb_frames);
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}
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av_log(ctx, AV_LOG_INFO, "%s%s average:%f min:%f max:%f\n",
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ctx->filter->name,
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buf,
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s->score / s->nb_frames,
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s->min_score,
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s->max_score);
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}
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ff_framesync_uninit(&s->fs);
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for (int t = 0; t < s->nb_threads && s->scores; t++)
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av_freep(&s->scores[t]);
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av_freep(&s->scores);
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}
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static const AVFilterPad identity_inputs[] = {
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{
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.name = "main",
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.type = AVMEDIA_TYPE_VIDEO,
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},{
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.name = "reference",
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.type = AVMEDIA_TYPE_VIDEO,
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.config_props = config_input_ref,
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},
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};
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static const AVFilterPad identity_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.config_props = config_output,
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},
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};
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static const AVOption options[] = {
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{ NULL }
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};
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#if CONFIG_IDENTITY_FILTER
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#define identity_options options
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FRAMESYNC_DEFINE_CLASS(identity, IdentityContext, fs);
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const AVFilter ff_vf_identity = {
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.name = "identity",
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.description = NULL_IF_CONFIG_SMALL("Calculate the Identity between two video streams."),
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.preinit = identity_framesync_preinit,
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.init = init,
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.uninit = uninit,
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.activate = activate,
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.priv_size = sizeof(IdentityContext),
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.priv_class = &identity_class,
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FILTER_INPUTS(identity_inputs),
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FILTER_OUTPUTS(identity_outputs),
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FILTER_PIXFMTS_ARRAY(pix_fmts),
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.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
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AVFILTER_FLAG_SLICE_THREADS |
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AVFILTER_FLAG_METADATA_ONLY,
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};
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#endif /* CONFIG_IDENTITY_FILTER */
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#if CONFIG_MSAD_FILTER
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#define msad_options options
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FRAMESYNC_DEFINE_CLASS(msad, IdentityContext, fs);
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const AVFilter ff_vf_msad = {
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.name = "msad",
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.description = NULL_IF_CONFIG_SMALL("Calculate the MSAD between two video streams."),
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.preinit = msad_framesync_preinit,
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.init = init,
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.uninit = uninit,
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.activate = activate,
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.priv_size = sizeof(IdentityContext),
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.priv_class = &msad_class,
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FILTER_INPUTS(identity_inputs),
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FILTER_OUTPUTS(identity_outputs),
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FILTER_PIXFMTS_ARRAY(pix_fmts),
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.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
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AVFILTER_FLAG_SLICE_THREADS |
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AVFILTER_FLAG_METADATA_ONLY,
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};
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#endif /* CONFIG_MSAD_FILTER */
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