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https://github.com/FFmpeg/FFmpeg.git
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avfilter: add maskedclamp filter
This commit is contained in:
parent
3c36d960f4
commit
12f997d061
@ -18,6 +18,7 @@ version <next>:
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- bitplanenoise video filter
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- floating point support in als decoder
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- fifo muxer
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- maskedclamp filter
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version 3.1:
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@ -9234,6 +9234,27 @@ lutyuv=u='(val-maxval/2)*2+maxval/2':v='(val-maxval/2)*2+maxval/2'
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@end example
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@end itemize
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@section maskedclamp
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Clamp the first input stream with the second input and third input stream.
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Returns the value of first stream to be between second input
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stream - @code{undershoot} and third input stream + @code{overshoot}.
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This filter accepts the following options:
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@table @option
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@item undershoot
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Default value is @code{0}.
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@item overshoot
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Default value is @code{0}.
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@item planes
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Set which planes will be processed as bitmap, unprocessed planes will be
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copied from first stream.
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By default value 0xf, all planes will be processed.
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@end table
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@section maskedmerge
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Merge the first input stream with the second input stream using per pixel
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@ -207,6 +207,7 @@ OBJS-$(CONFIG_LUT_FILTER) += vf_lut.o
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OBJS-$(CONFIG_LUT3D_FILTER) += vf_lut3d.o
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OBJS-$(CONFIG_LUTRGB_FILTER) += vf_lut.o
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OBJS-$(CONFIG_LUTYUV_FILTER) += vf_lut.o
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OBJS-$(CONFIG_MASKEDCLAMP_FILTER) += vf_maskedclamp.o framesync.o
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OBJS-$(CONFIG_MASKEDMERGE_FILTER) += vf_maskedmerge.o framesync.o
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OBJS-$(CONFIG_MCDEINT_FILTER) += vf_mcdeint.o
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OBJS-$(CONFIG_MERGEPLANES_FILTER) += vf_mergeplanes.o framesync.o
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@ -224,6 +224,7 @@ void avfilter_register_all(void)
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REGISTER_FILTER(LUT3D, lut3d, vf);
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REGISTER_FILTER(LUTRGB, lutrgb, vf);
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REGISTER_FILTER(LUTYUV, lutyuv, vf);
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REGISTER_FILTER(MASKEDCLAMP, maskedclamp, vf);
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REGISTER_FILTER(MASKEDMERGE, maskedmerge, vf);
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REGISTER_FILTER(MCDEINT, mcdeint, vf);
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REGISTER_FILTER(MERGEPLANES, mergeplanes, vf);
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@ -30,7 +30,7 @@
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#include "libavutil/version.h"
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#define LIBAVFILTER_VERSION_MAJOR 6
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#define LIBAVFILTER_VERSION_MINOR 52
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#define LIBAVFILTER_VERSION_MINOR 53
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#define LIBAVFILTER_VERSION_MICRO 100
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#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
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345
libavfilter/vf_maskedclamp.c
Normal file
345
libavfilter/vf_maskedclamp.c
Normal file
@ -0,0 +1,345 @@
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/*
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* Copyright (c) 2016 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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#include "libavutil/imgutils.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/opt.h"
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#include "avfilter.h"
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#include "formats.h"
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#include "internal.h"
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#include "video.h"
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#include "framesync.h"
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#define OFFSET(x) offsetof(MaskedClampContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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typedef struct MaskedClampContext {
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const AVClass *class;
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int planes;
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int undershoot;
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int overshoot;
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int width[4], height[4];
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int nb_planes;
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int depth;
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FFFrameSync fs;
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void (*maskedclamp)(const uint8_t *bsrc, const uint8_t *osrc,
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const uint8_t *msrc, uint8_t *dst,
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ptrdiff_t blinesize, ptrdiff_t darklinesize,
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ptrdiff_t brightlinesize, ptrdiff_t destlinesize,
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int w, int h, int undershoot, int overshoot);
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} MaskedClampContext;
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static const AVOption maskedclamp_options[] = {
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{ "undershoot", "set undershoot", OFFSET(undershoot), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
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{ "overshoot", "set overshoot", OFFSET(overshoot), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
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{ "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(maskedclamp);
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static int query_formats(AVFilterContext *ctx)
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{
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static const enum AVPixelFormat pix_fmts[] = {
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AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
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AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
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AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
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AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
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AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
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AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
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AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
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AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
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AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
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AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
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AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
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AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
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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_GBRAP12, AV_PIX_FMT_GBRAP16,
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AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16,
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AV_PIX_FMT_NONE
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};
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return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
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}
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static int process_frame(FFFrameSync *fs)
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{
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AVFilterContext *ctx = fs->parent;
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MaskedClampContext *s = fs->opaque;
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AVFilterLink *outlink = ctx->outputs[0];
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AVFrame *out, *base, *dark, *bright;
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int ret;
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if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 ||
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(ret = ff_framesync_get_frame(&s->fs, 1, &dark, 0)) < 0 ||
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(ret = ff_framesync_get_frame(&s->fs, 2, &bright, 0)) < 0)
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return ret;
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if (ctx->is_disabled) {
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out = av_frame_clone(base);
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if (!out)
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return AVERROR(ENOMEM);
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} else {
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int p;
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!out)
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return AVERROR(ENOMEM);
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av_frame_copy_props(out, base);
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for (p = 0; p < s->nb_planes; p++) {
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if (!((1 << p) & s->planes)) {
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av_image_copy_plane(out->data[p], out->linesize[p], base->data[p], base->linesize[p],
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s->width[p], s->height[p]);
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continue;
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}
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s->maskedclamp(base->data[p], dark->data[p],
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bright->data[p], out->data[p],
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base->linesize[p], dark->linesize[p],
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bright->linesize[p], out->linesize[p],
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s->width[p], s->height[p],
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s->undershoot, s->overshoot);
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}
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}
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out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
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return ff_filter_frame(outlink, out);
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}
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static void maskedclamp8(const uint8_t *bsrc, const uint8_t *darksrc,
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const uint8_t *brightsrc, uint8_t *dst,
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ptrdiff_t blinesize, ptrdiff_t darklinesize,
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ptrdiff_t brightlinesize, ptrdiff_t dlinesize,
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int w, int h,
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int undershoot, int overshoot)
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{
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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if (bsrc[x] < darksrc[x] - undershoot)
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dst[x] = darksrc[x] - undershoot;
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else if (bsrc[x] > brightsrc[x] + overshoot)
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dst[x] = brightsrc[x] + overshoot;
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else
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dst[x] = bsrc[x];
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}
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dst += dlinesize;
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bsrc += blinesize;
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darksrc += darklinesize;
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brightsrc += brightlinesize;
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}
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}
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static void maskedclamp16(const uint8_t *bbsrc, const uint8_t *oosrc,
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const uint8_t *mmsrc, uint8_t *ddst,
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ptrdiff_t blinesize, ptrdiff_t darklinesize,
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ptrdiff_t brightlinesize, ptrdiff_t dlinesize,
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int w, int h,
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int undershoot, int overshoot)
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{
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const uint16_t *bsrc = (const uint16_t *)bbsrc;
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const uint16_t *darksrc = (const uint16_t *)oosrc;
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const uint16_t *brightsrc = (const uint16_t *)mmsrc;
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uint16_t *dst = (uint16_t *)ddst;
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int x, y;
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dlinesize /= 2;
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blinesize /= 2;
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darklinesize /= 2;
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brightlinesize /= 2;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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if (bsrc[x] < darksrc[x] - undershoot)
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dst[x] = darksrc[x] - undershoot;
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else if (bsrc[x] > brightsrc[x] + overshoot)
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dst[x] = brightsrc[x] + overshoot;
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else
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dst[x] = bsrc[x];
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}
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dst += dlinesize;
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bsrc += blinesize;
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darksrc += darklinesize;
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brightsrc += brightlinesize;
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}
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}
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static int config_input(AVFilterLink *inlink)
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{
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AVFilterContext *ctx = inlink->dst;
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MaskedClampContext *s = ctx->priv;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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int vsub, hsub;
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s->nb_planes = av_pix_fmt_count_planes(inlink->format);
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hsub = desc->log2_chroma_w;
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vsub = desc->log2_chroma_h;
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s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
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s->height[0] = s->height[3] = inlink->h;
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s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
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s->width[0] = s->width[3] = inlink->w;
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s->depth = desc->comp[0].depth;
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if (desc->comp[0].depth == 8)
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s->maskedclamp = maskedclamp8;
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else
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s->maskedclamp = maskedclamp16;
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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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MaskedClampContext *s = ctx->priv;
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AVFilterLink *base = ctx->inputs[0];
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AVFilterLink *dark = ctx->inputs[1];
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AVFilterLink *bright = ctx->inputs[2];
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FFFrameSyncIn *in;
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int ret;
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if (base->format != dark->format ||
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base->format != bright->format) {
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av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
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return AVERROR(EINVAL);
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}
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if (base->w != dark->w ||
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base->h != dark->h ||
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base->sample_aspect_ratio.num != dark->sample_aspect_ratio.num ||
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base->sample_aspect_ratio.den != dark->sample_aspect_ratio.den ||
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base->w != bright->w ||
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base->h != bright->h ||
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base->sample_aspect_ratio.num != bright->sample_aspect_ratio.num ||
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base->sample_aspect_ratio.den != bright->sample_aspect_ratio.den) {
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av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
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"(size %dx%d, SAR %d:%d) do not match the corresponding "
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"second input link %s parameters (%dx%d, SAR %d:%d) "
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"and/or third input link %s parameters (%dx%d, SAR %d:%d)\n",
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ctx->input_pads[0].name, base->w, base->h,
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base->sample_aspect_ratio.num,
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base->sample_aspect_ratio.den,
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ctx->input_pads[1].name, dark->w, dark->h,
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dark->sample_aspect_ratio.num,
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dark->sample_aspect_ratio.den,
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ctx->input_pads[2].name, bright->w, bright->h,
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bright->sample_aspect_ratio.num,
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bright->sample_aspect_ratio.den);
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return AVERROR(EINVAL);
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}
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outlink->w = base->w;
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outlink->h = base->h;
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outlink->time_base = base->time_base;
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outlink->sample_aspect_ratio = base->sample_aspect_ratio;
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outlink->frame_rate = base->frame_rate;
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if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)
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return ret;
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in = s->fs.in;
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in[0].time_base = base->time_base;
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in[1].time_base = dark->time_base;
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in[2].time_base = bright->time_base;
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in[0].sync = 1;
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in[0].before = EXT_STOP;
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in[0].after = EXT_INFINITY;
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in[1].sync = 1;
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in[1].before = EXT_STOP;
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in[1].after = EXT_INFINITY;
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in[2].sync = 1;
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in[2].before = EXT_STOP;
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in[2].after = EXT_INFINITY;
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s->fs.opaque = s;
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s->fs.on_event = process_frame;
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return ff_framesync_configure(&s->fs);
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}
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static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
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{
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MaskedClampContext *s = inlink->dst->priv;
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return ff_framesync_filter_frame(&s->fs, inlink, buf);
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}
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static int request_frame(AVFilterLink *outlink)
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{
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MaskedClampContext *s = outlink->src->priv;
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return ff_framesync_request_frame(&s->fs, outlink);
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}
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static av_cold void uninit(AVFilterContext *ctx)
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{
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MaskedClampContext *s = ctx->priv;
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ff_framesync_uninit(&s->fs);
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}
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static const AVFilterPad maskedclamp_inputs[] = {
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{
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.name = "base",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = filter_frame,
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.config_props = config_input,
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},
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{
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.name = "dark",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = filter_frame,
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},
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{
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.name = "bright",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = filter_frame,
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},
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{ NULL }
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};
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static const AVFilterPad maskedclamp_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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.request_frame = request_frame,
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},
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{ NULL }
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};
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AVFilter ff_vf_maskedclamp = {
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.name = "maskedclamp",
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.description = NULL_IF_CONFIG_SMALL("Clamp first stream with second stream and third stream."),
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.priv_size = sizeof(MaskedClampContext),
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.uninit = uninit,
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.query_formats = query_formats,
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.inputs = maskedclamp_inputs,
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.outputs = maskedclamp_outputs,
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.priv_class = &maskedclamp_class,
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.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
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};
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