diff options
-rw-r--r-- | Changelog | 1 | ||||
-rw-r--r-- | doc/filters.texi | 21 | ||||
-rw-r--r-- | libavfilter/Makefile | 1 | ||||
-rw-r--r-- | libavfilter/allfilters.c | 1 | ||||
-rw-r--r-- | libavfilter/version.h | 2 | ||||
-rw-r--r-- | libavfilter/vf_maskedthreshold.c | 298 |
6 files changed, 323 insertions, 1 deletions
@@ -60,6 +60,7 @@ version <next>: - Expanded styling support for 3GPP Timed Text Subtitles (movtext) - WebP parser - tmedian filter +- maskedthreshold filter version 4.2: diff --git a/doc/filters.texi b/doc/filters.texi index cc09fee5dd..80c33f5edb 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -13258,6 +13258,27 @@ copied from first stream. By default value 0xf, all planes will be processed. @end table +@section maskedthreshold +Pick pixels comparing absolute difference of two video streams with fixed +threshold. + +If absolute difference between pixel component of first and second video +stream is equal or lower than user supplied threshold than pixel component +from first video stream is picked, otherwise pixel component from second +video stream is picked. + +This filter accepts the following options: +@table @option +@item threshold +Set threshold used when picking pixels from absolute difference from two input +video streams. + +@item planes +Set which planes will be processed as bitmap, unprocessed planes will be +copied from second stream. +By default value 0xf, all planes will be processed. +@end table + @section maskfun Create mask from input video. diff --git a/libavfilter/Makefile b/libavfilter/Makefile index b54e6cd374..e1205eb063 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -302,6 +302,7 @@ OBJS-$(CONFIG_MASKEDCLAMP_FILTER) += vf_maskedclamp.o framesync.o OBJS-$(CONFIG_MASKEDMAX_FILTER) += vf_maskedminmax.o framesync.o OBJS-$(CONFIG_MASKEDMERGE_FILTER) += vf_maskedmerge.o framesync.o OBJS-$(CONFIG_MASKEDMIN_FILTER) += vf_maskedminmax.o framesync.o +OBJS-$(CONFIG_MASKEDTHRESHOLD_FILTER) += vf_maskedthreshold.o framesync.o OBJS-$(CONFIG_MASKFUN_FILTER) += vf_maskfun.o OBJS-$(CONFIG_MCDEINT_FILTER) += vf_mcdeint.o OBJS-$(CONFIG_MEDIAN_FILTER) += vf_median.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 5842196118..6354375e91 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -287,6 +287,7 @@ extern AVFilter ff_vf_maskedclamp; extern AVFilter ff_vf_maskedmax; extern AVFilter ff_vf_maskedmerge; extern AVFilter ff_vf_maskedmin; +extern AVFilter ff_vf_maskedthreshold; extern AVFilter ff_vf_maskfun; extern AVFilter ff_vf_mcdeint; extern AVFilter ff_vf_median; diff --git a/libavfilter/version.h b/libavfilter/version.h index 4c4e8afe2d..8b06e70615 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 78 +#define LIBAVFILTER_VERSION_MINOR 79 #define LIBAVFILTER_VERSION_MICRO 100 diff --git a/libavfilter/vf_maskedthreshold.c b/libavfilter/vf_maskedthreshold.c new file mode 100644 index 0000000000..d925819f6a --- /dev/null +++ b/libavfilter/vf_maskedthreshold.c @@ -0,0 +1,298 @@ +/* + * Copyright (c) 2020 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 MaskedThresholdContext { + const AVClass *class; + + int threshold; + int planes; + + int linesize[4]; + int planewidth[4], planeheight[4]; + int nb_planes; + int depth; + FFFrameSync fs; + + void (*maskedthreshold)(const uint8_t *src, const uint8_t *ref, uint8_t *dst, int threshold, int w); +} MaskedThresholdContext; + +#define OFFSET(x) offsetof(MaskedThresholdContext, x) +#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM + +typedef struct ThreadData { + AVFrame *src, *ref, *dst; +} ThreadData; + +static const AVOption maskedthreshold_options[] = { + { "threshold", "set threshold", OFFSET(threshold), AV_OPT_TYPE_INT, {.i64=1}, 0, UINT16_MAX, FLAGS }, + { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS }, + { NULL } +}; + +static int query_formats(AVFilterContext *ctx) +{ + 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 + }; + + return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); +} + +static void threshold8(const uint8_t *src, const uint8_t *ref, uint8_t *dst, int threshold, int w) +{ + for (int x = 0; x < w; x++) + dst[x] = FFABS(src[x] - ref[x]) <= threshold ? src[x] : ref[x]; +} + +static void threshold16(const uint8_t *ssrc, const uint8_t *rref, uint8_t *ddst, int threshold, int w) +{ + const uint16_t *src = (const uint16_t *)ssrc; + const uint16_t *ref = (const uint16_t *)rref; + uint16_t *dst = (uint16_t *)ddst; + + for (int x = 0; x < w; x++) + dst[x] = FFABS(src[x] - ref[x]) <= threshold ? src[x] : ref[x]; +} + +static int config_input(AVFilterLink *inlink) +{ + AVFilterContext *ctx = inlink->dst; + MaskedThresholdContext *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; + + if (desc->comp[0].depth == 8) + s->maskedthreshold = threshold8; + else + s->maskedthreshold = threshold16; + + return 0; +} + +static int threshold_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) +{ + MaskedThresholdContext *s = ctx->priv; + const int threshold = s->threshold; + ThreadData *td = arg; + + for (int p = 0; p < s->nb_planes; p++) { + const ptrdiff_t src_linesize = td->src->linesize[p]; + const ptrdiff_t ref_linesize = td->ref->linesize[p]; + const ptrdiff_t dst_linesize = td->dst->linesize[p]; + 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 *src = td->src->data[p] + slice_start * src_linesize; + const uint8_t *ref = td->ref->data[p] + slice_start * ref_linesize; + uint8_t *dst = td->dst->data[p] + slice_start * dst_linesize; + + if (!((1 << p) & s->planes)) { + av_image_copy_plane(dst, dst_linesize, ref, ref_linesize, + s->linesize[p], slice_end - slice_start); + continue; + } + + for (int y = slice_start; y < slice_end; y++) { + s->maskedthreshold(src, ref, dst, threshold, w); + + dst += dst_linesize; + src += src_linesize; + ref += ref_linesize; + } + } + + return 0; +} + +static int process_frame(FFFrameSync *fs) +{ + AVFilterContext *ctx = fs->parent; + MaskedThresholdContext *s = fs->opaque; + AVFilterLink *outlink = ctx->outputs[0]; + AVFrame *out, *src, *ref; + int ret; + + if ((ret = ff_framesync_get_frame(&s->fs, 0, &src, 0)) < 0 || + (ret = ff_framesync_get_frame(&s->fs, 1, &ref, 0)) < 0) + return ret; + + if (ctx->is_disabled) { + out = av_frame_clone(src); + 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, src); + + td.src = src; + td.ref = ref; + td.dst = out; + + ctx->internal->execute(ctx, threshold_slice, &td, NULL, FFMIN(s->planeheight[2], + 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; + MaskedThresholdContext *s = ctx->priv; + AVFilterLink *source = ctx->inputs[0]; + AVFilterLink *ref = ctx->inputs[1]; + FFFrameSyncIn *in; + int ret; + + if (source->format != ref->format) { + av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n"); + return AVERROR(EINVAL); + } + if (source->w != ref->w || source->h != ref->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, source->w, source->h, + ctx->input_pads[1].name, ref->w, ref->h); + return AVERROR(EINVAL); + } + + outlink->w = source->w; + outlink->h = source->h; + outlink->sample_aspect_ratio = source->sample_aspect_ratio; + outlink->frame_rate = source->frame_rate; + + if ((ret = ff_framesync_init(&s->fs, ctx, 2)) < 0) + return ret; + + in = s->fs.in; + in[0].time_base = source->time_base; + in[1].time_base = ref->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; + 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) +{ + MaskedThresholdContext *s = ctx->priv; + return ff_framesync_activate(&s->fs); +} + +static av_cold void uninit(AVFilterContext *ctx) +{ + MaskedThresholdContext *s = ctx->priv; + + ff_framesync_uninit(&s->fs); +} + +static const AVFilterPad maskedthreshold_inputs[] = { + { + .name = "source", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = config_input, + }, + { + .name = "reference", + .type = AVMEDIA_TYPE_VIDEO, + }, + { NULL } +}; + +static const AVFilterPad maskedthreshold_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = config_output, + }, + { NULL } +}; + +AVFILTER_DEFINE_CLASS(maskedthreshold); + +AVFilter ff_vf_maskedthreshold = { + .name = "maskedthreshold", + .description = NULL_IF_CONFIG_SMALL("Pick pixels comparing absolute difference of two streams with threshold."), + .priv_class = &maskedthreshold_class, + .priv_size = sizeof(MaskedThresholdContext), + .uninit = uninit, + .activate = activate, + .query_formats = query_formats, + .inputs = maskedthreshold_inputs, + .outputs = maskedthreshold_outputs, + .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, +}; |