From 17127f81c5b9962293af01b73a6b0c27fffb080f Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Wed, 3 Mar 2021 19:31:38 +0100 Subject: avfilter: add msad video filter --- libavfilter/allfilters.c | 1 + libavfilter/version.h | 2 +- libavfilter/vf_identity.c | 115 +++++++++++++++++++++++++++++++++++++++------- 3 files changed, 100 insertions(+), 18 deletions(-) (limited to 'libavfilter') diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index d5b4ef88a7..0872c6e0f2 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -320,6 +320,7 @@ extern AVFilter ff_vf_minterpolate; extern AVFilter ff_vf_mix; extern AVFilter ff_vf_monochrome; extern AVFilter ff_vf_mpdecimate; +extern AVFilter ff_vf_msad; extern AVFilter ff_vf_negate; extern AVFilter ff_vf_nlmeans; extern AVFilter ff_vf_nlmeans_opencl; diff --git a/libavfilter/version.h b/libavfilter/version.h index 241a53ea4f..ce37b8c60e 100644 --- a/libavfilter/version.h +++ b/libavfilter/version.h @@ -30,7 +30,7 @@ #include "libavutil/version.h" #define LIBAVFILTER_VERSION_MAJOR 7 -#define LIBAVFILTER_VERSION_MINOR 108 +#define LIBAVFILTER_VERSION_MINOR 109 #define LIBAVFILTER_VERSION_MICRO 100 diff --git a/libavfilter/vf_identity.c b/libavfilter/vf_identity.c index 02dda392b3..60d02e328b 100644 --- a/libavfilter/vf_identity.c +++ b/libavfilter/vf_identity.c @@ -32,6 +32,7 @@ #include "framesync.h" #include "internal.h" #include "video.h" +#include "scene_sad.h" typedef struct IdentityContext { const AVClass *class; @@ -39,7 +40,9 @@ typedef struct IdentityContext { double score, min_score, max_score, score_comp[4]; uint64_t nb_frames; int is_rgb; + int is_msad; uint8_t rgba_map[4]; + int max[4]; char comps[4]; int nb_components; int nb_threads; @@ -47,17 +50,14 @@ typedef struct IdentityContext { int planeheight[4]; uint64_t **scores; unsigned (*filter_line)(const uint8_t *buf, const uint8_t *ref, int w); + int (*filter_slice)(AVFilterContext *ctx, void *arg, + int jobnr, int nb_jobs); + ff_scene_sad_fn sad; } IdentityContext; #define OFFSET(x) offsetof(IdentityContext, x) #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM -static const AVOption identity_options[] = { - { NULL } -}; - -FRAMESYNC_DEFINE_CLASS(identity, IdentityContext, fs); - static unsigned identity_line_8bit(const uint8_t *main_line, const uint8_t *ref_line, int outw) { unsigned score = 0; @@ -91,6 +91,34 @@ typedef struct ThreadData { int nb_components; } ThreadData; +static +int compute_images_msad(AVFilterContext *ctx, void *arg, + int jobnr, int nb_jobs) +{ + IdentityContext *s = ctx->priv; + ThreadData *td = arg; + uint64_t *score = td->score[jobnr]; + + for (int c = 0; c < td->nb_components; c++) { + const int outw = td->planewidth[c]; + const int outh = td->planeheight[c]; + const int slice_start = (outh * jobnr) / nb_jobs; + const int slice_end = (outh * (jobnr+1)) / nb_jobs; + const int ref_linesize = td->ref_linesize[c]; + const int main_linesize = td->main_linesize[c]; + const uint8_t *main_line = td->main_data[c] + main_linesize * slice_start; + const uint8_t *ref_line = td->ref_data[c] + ref_linesize * slice_start; + uint64_t m = 0; + + s->sad(main_line, main_linesize, ref_line, ref_linesize, + outw, slice_end - slice_start, &m); + + score[c] = m; + } + + return 0; +} + static int compute_images_identity(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) @@ -121,16 +149,21 @@ int compute_images_identity(AVFilterContext *ctx, void *arg, return 0; } -static void set_meta(AVDictionary **metadata, const char *key, char comp, float d) +static void set_meta(AVFilterContext *ctx, + AVDictionary **metadata, const char *key, char comp, float d) { char value[128]; snprintf(value, sizeof(value), "%f", d); if (comp) { char key2[128]; - snprintf(key2, sizeof(key2), "%s%c", key, comp); + snprintf(key2, sizeof(key2), "lavfi.%s.%s%s%c", + ctx->filter->name, ctx->filter->name, key, comp); av_dict_set(metadata, key2, value, 0); } else { - av_dict_set(metadata, key, value, 0); + char key2[128]; + snprintf(key2, sizeof(key2), "lavfi.%s.%s%s", + ctx->filter->name, ctx->filter->name, key); + av_dict_set(metadata, key2, value, 0); } } @@ -139,7 +172,7 @@ static int do_identity(FFFrameSync *fs) AVFilterContext *ctx = fs->parent; IdentityContext *s = ctx->priv; AVFrame *master, *ref; - double comp_identity[4], score = 0.; + double comp_score[4], score = 0.; uint64_t comp_sum[4] = { 0 }; AVDictionary **metadata; ThreadData td; @@ -163,7 +196,7 @@ static int do_identity(FFFrameSync *fs) td.planeheight[c] = s->planeheight[c]; } - ctx->internal->execute(ctx, compute_images_identity, &td, NULL, FFMIN(s->planeheight[1], s->nb_threads)); + ctx->internal->execute(ctx, s->filter_slice, &td, NULL, FFMIN(s->planeheight[1], s->nb_threads)); for (int j = 0; j < s->nb_threads; j++) { for (int c = 0; c < s->nb_components; c++) @@ -171,10 +204,13 @@ static int do_identity(FFFrameSync *fs) } for (int c = 0; c < s->nb_components; c++) - comp_identity[c] = comp_sum[c] / ((double)s->planewidth[c] * s->planeheight[c]); + comp_score[c] = comp_sum[c] / ((double)s->planewidth[c] * s->planeheight[c]); + + for (int c = 0; c < s->nb_components && s->is_msad; c++) + comp_score[c] /= (double)s->max[c]; for (int c = 0; c < s->nb_components; c++) - score += comp_identity[c]; + score += comp_score[c]; score /= s->nb_components; s->min_score = FFMIN(s->min_score, score); @@ -183,14 +219,14 @@ static int do_identity(FFFrameSync *fs) s->score += score; for (int j = 0; j < s->nb_components; j++) - s->score_comp[j] += comp_identity[j]; + s->score_comp[j] += comp_score[j]; s->nb_frames++; for (int j = 0; j < s->nb_components; j++) { int c = s->is_rgb ? s->rgba_map[j] : j; - set_meta(metadata, "lavfi.identity.identity.", s->comps[j], comp_identity[c]); + set_meta(ctx, metadata, ".", s->comps[j], comp_score[c]); } - set_meta(metadata, "lavfi.identity.identity_avg", 0, score); + set_meta(ctx, metadata, "_avg", 0, score); return ff_filter_frame(ctx->outputs[0], master); } @@ -269,8 +305,19 @@ static int config_input_ref(AVFilterLink *inlink) s->min_score = +INFINITY; s->max_score = -INFINITY; + s->max[0] = (1 << desc->comp[0].depth) - 1; + s->max[1] = (1 << desc->comp[1].depth) - 1; + s->max[2] = (1 << desc->comp[2].depth) - 1; + s->max[3] = (1 << desc->comp[3].depth) - 1; + + s->is_msad = !strcmp(ctx->filter->name, "msad"); + s->filter_slice = !s->is_msad ? compute_images_identity : compute_images_msad; s->filter_line = desc->comp[0].depth > 8 ? identity_line_16bit : identity_line_8bit; + s->sad = ff_scene_sad_get_fn(desc->comp[0].depth <= 8 ? 8 : 16); + if (!s->sad) + return AVERROR(EINVAL); + return 0; } @@ -322,7 +369,8 @@ static av_cold void uninit(AVFilterContext *ctx) av_strlcatf(buf, sizeof(buf), " %c:%f", s->comps[j], s->score_comp[c] / s->nb_frames); } - av_log(ctx, AV_LOG_INFO, "Identity%s average:%f min:%f max:%f\n", + av_log(ctx, AV_LOG_INFO, "%s%s average:%f min:%f max:%f\n", + ctx->filter->name, buf, s->score / s->nb_frames, s->min_score, @@ -356,6 +404,15 @@ static const AVFilterPad identity_outputs[] = { { NULL } }; +static const AVOption options[] = { + { NULL } +}; + +#if CONFIG_IDENTITY_FILTER + +#define identity_options options +FRAMESYNC_DEFINE_CLASS(identity, IdentityContext, fs); + AVFilter ff_vf_identity = { .name = "identity", .description = NULL_IF_CONFIG_SMALL("Calculate the Identity between two video streams."), @@ -370,3 +427,27 @@ AVFilter ff_vf_identity = { .outputs = identity_outputs, .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, }; + +#endif /* CONFIG_IDENTITY_FILTER */ + +#if CONFIG_MSAD_FILTER + +#define msad_options options +FRAMESYNC_DEFINE_CLASS(msad, IdentityContext, fs); + +AVFilter ff_vf_msad = { + .name = "msad", + .description = NULL_IF_CONFIG_SMALL("Calculate the MSAD between two video streams."), + .preinit = msad_framesync_preinit, + .init = init, + .uninit = uninit, + .query_formats = query_formats, + .activate = activate, + .priv_size = sizeof(IdentityContext), + .priv_class = &msad_class, + .inputs = identity_inputs, + .outputs = identity_outputs, + .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, +}; + +#endif /* CONFIG_MSAD_FILTER */ -- cgit v1.2.3