From patchwork Sun Jan 3 14:43:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul B Mahol X-Patchwork-Id: 24766 Return-Path: X-Original-To: patchwork@ffaux-bg.ffmpeg.org Delivered-To: patchwork@ffaux-bg.ffmpeg.org Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by ffaux.localdomain (Postfix) with ESMTP id BA81444AD39 for ; Sun, 3 Jan 2021 17:11:35 +0200 (EET) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 678B5689DBF; Sun, 3 Jan 2021 17:11:35 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-lf1-f46.google.com (mail-lf1-f46.google.com [209.85.167.46]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 96C28689997 for ; Sun, 3 Jan 2021 17:11:28 +0200 (EET) Received: by mail-lf1-f46.google.com with SMTP id o17so58763257lfg.4 for ; Sun, 03 Jan 2021 07:11:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id; bh=vXmLWzskNgdTR7z0QVlXuV4ujXPtdcZJCnx+Eo1MxAE=; b=FqPRdS8lQyhCnRlFUPdrj0y+0qj2t0qnARFyce4R/WV9WVvsK75xogGSI0W05vQfFx FJZIkRB2WHhH16DRVCs2B457J4YwQRq4Q/ZlEef+Cf40GUxVo69cdABWPjELNFFYOtYn 7oSrwZjooKL72o0QADeev/mxs95158kDud2QbQ3pUplbsicvC4nytNQY9NWi8/DJg169 YL3VPqhV6/rakWG43DWnJVqPyMZ34KfPUprBOZVPHzWC+BmlBZ3WTk7Kdg9/YmQZZ0Fa XO2ZJK5dWHlxUcPAZuI1hLYhDKvcETYHiZ7D9cRi6BH+lfGzwILhcmBSL4MRKOkdS1vk Y7ZA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id; bh=vXmLWzskNgdTR7z0QVlXuV4ujXPtdcZJCnx+Eo1MxAE=; b=PHvzo+0J2HF1TcFMjt9YofpomoBcOeTJutwHa5WZz1LhENifnx49sRFejX/Lgvqc40 XHhRtYrPXd+qIZg/2H0ZI3YqJXFUFkfZI5NxrFP/sqPPItV6M+lkkaJbImWBi4TUBr2f MNv9ryxLLLjEwJdhYvZ187lFJXi9Q9VOWvSTXtWsttjEuXlq+s0EpDryR5ySqX35mxZe ZG7dK42DyxFRKeFqgmkN5UP2rzgH5Ir3ViR+2BTFat+2JqoH9NsCUEMQDasVD2XD+pQN 6BAbQAYMHWMKd6/AEgr1CJYPBmoHUWUGPrl3gwEoOT2dDnmSs/+2sbLWPz2GTYuMcSym GCqg== X-Gm-Message-State: AOAM530HW8UDCq5+/59EloZ/L8yTGYwOtwBUrEwIA4H9l7To8T3BAuzm 0Cxo9fEP7By/Cav94y7xxl+fS2O7u542qQ== X-Google-Smtp-Source: ABdhPJxoiX/LvRlfkjU+vKxDFAgp1rHgtWCOUZxOP7UatwYPG9P+EZXK4lkCOk7vWePFgoN6W/U/GQ== X-Received: by 2002:aa7:cd44:: with SMTP id v4mr67033895edw.156.1609685013755; Sun, 03 Jan 2021 06:43:33 -0800 (PST) Received: from localhost.localdomain ([31.45.254.141]) by smtp.gmail.com with ESMTPSA id s19sm42861716edx.7.2021.01.03.06.43.32 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 03 Jan 2021 06:43:33 -0800 (PST) From: Paul B Mahol To: ffmpeg-devel@ffmpeg.org Date: Sun, 3 Jan 2021 15:43:23 +0100 Message-Id: <20210103144323.20725-1-onemda@gmail.com> X-Mailer: git-send-email 2.17.1 Subject: [FFmpeg-devel] [PATCH] avfilter: add xdif video filter X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Signed-off-by: Paul B Mahol --- doc/filters.texi | 54 +++++++ libavfilter/Makefile | 1 + libavfilter/allfilters.c | 1 + libavfilter/vf_xdif.c | 261 ++++++++++++++++++++++++++++++++ libavfilter/xdif.h | 47 ++++++ libavfilter/xdif_template.c | 289 ++++++++++++++++++++++++++++++++++++ 6 files changed, 653 insertions(+) create mode 100644 libavfilter/vf_xdif.c create mode 100644 libavfilter/xdif.h create mode 100644 libavfilter/xdif_template.c diff --git a/doc/filters.texi b/doc/filters.texi index 01ae540c5c..92f9c53066 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -21152,6 +21152,60 @@ Set the scaling dimension: @code{2} for @code{2xBR}, @code{3} for Default is @code{3}. @end table +@section xdif + +Deinterlace the input video using X Deinterlacing Filter. + +Spatial only filter that operates in 8x8 blocks with edge-oriented interpolation. +It accepts the following options: + +@table @option +@item mode +The interlacing mode to adopt. It accepts one of the following values: + +@table @option +@item frame +Output one frame for each frame. +@item field +Output one frame for each field. +@end table + +The default value is @code{field}. + +@item parity +The picture field parity assumed for the input interlaced video. It accepts one +of the following values: + +@table @option +@item ff +Assume the top field is first. +@item bff +Assume the bottom field is first. +@item auto +Enable automatic detection of field parity. +@end table + +The default value is @code{auto}. +If the interlacing is unknown or the decoder does not export this information, +top field first will be assumed. + +@item deint +Specify which frames to deinterlace. Accepts one of the following +values: + +@table @option +@item all +Deinterlace all frames. +@item interlaced +Only deinterlace frames marked as interlaced. +@end table + +The default value is @code{all}. +@end table + +@subsection Commands +This filter supports same @ref{commands} as options. + @section xfade Apply cross fade from one input video stream to another input video stream. diff --git a/libavfilter/Makefile b/libavfilter/Makefile index ad1046d526..d14023c13d 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -467,6 +467,7 @@ OBJS-$(CONFIG_W3FDIF_FILTER) += vf_w3fdif.o OBJS-$(CONFIG_WAVEFORM_FILTER) += vf_waveform.o OBJS-$(CONFIG_WEAVE_FILTER) += vf_weave.o OBJS-$(CONFIG_XBR_FILTER) += vf_xbr.o +OBJS-$(CONFIG_XDIF_FILTER) += vf_xdif.o OBJS-$(CONFIG_XFADE_FILTER) += vf_xfade.o OBJS-$(CONFIG_XFADE_OPENCL_FILTER) += vf_xfade_opencl.o opencl.o opencl/xfade.o OBJS-$(CONFIG_XMEDIAN_FILTER) += vf_xmedian.o framesync.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index ce317dfa1c..215dfef5c5 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -445,6 +445,7 @@ extern AVFilter ff_vf_w3fdif; extern AVFilter ff_vf_waveform; extern AVFilter ff_vf_weave; extern AVFilter ff_vf_xbr; +extern AVFilter ff_vf_xdif; extern AVFilter ff_vf_xfade; extern AVFilter ff_vf_xfade_opencl; extern AVFilter ff_vf_xmedian; diff --git a/libavfilter/vf_xdif.c b/libavfilter/vf_xdif.c new file mode 100644 index 0000000000..5476527f54 --- /dev/null +++ b/libavfilter/vf_xdif.c @@ -0,0 +1,261 @@ +/* + * Copyright (c) 2000-2011 VLC authors and VideoLAN + * Copyright (c) Laurent Aimar + * Copyright (c) 2021 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/common.h" +#include "libavutil/imgutils.h" +#include "libavutil/opt.h" +#include "libavutil/pixdesc.h" +#include "avfilter.h" +#include "formats.h" +#include "internal.h" +#include "video.h" +#include "xdif.h" + +#define OFFSET(x) offsetof(XDIFContext, x) +#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM +#define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit } + +static const AVOption xdif_options[] = { + { "mode", "specify the mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "mode" }, + CONST("frame", NULL, 0, "mode"), + CONST("field", NULL, 1, "mode"), + { "parity", "specify the assumed picture field parity", OFFSET(parity), AV_OPT_TYPE_INT, {.i64=-1}, -1, 1, FLAGS, "parity" }, + CONST("tff", "assume top field first", 0, "parity"), + CONST("bff", "assume bottom field first", 1, "parity"), + CONST("auto", "auto detect parity", -1, "parity"), + { "deint", "specify which frames to deinterlace", OFFSET(deint), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "deint" }, + CONST("all", "deinterlace all frames", 0, "deint"), + CONST("interlaced", "only deinterlace frames marked as interlaced", 1, "deint"), + { NULL } +}; + +AVFILTER_DEFINE_CLASS(xdif); + +typedef struct ThreadData { + AVFrame *out, *in; +} ThreadData; + +static inline int64_t ssd(int x) +{ + return x * x; +} + +#define DEPTH 8 +#include "xdif_template.c" + +#undef DEPTH +#define DEPTH 16 +#include "xdif_template.c" + +static int query_formats(AVFilterContext *ctx) +{ + static const enum AVPixelFormat pix_fmts[] = { + 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_YUVJ444P, AV_PIX_FMT_YUVJ440P, + AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, + AV_PIX_FMT_YUVJ411P, + AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, + AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, + AV_PIX_FMT_GRAY8, + 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_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, + AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, + AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16, + AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16, + AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16, + AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16, + AV_PIX_FMT_NONE + }; + + AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts); + if (!fmts_list) + return AVERROR(ENOMEM); + return ff_set_common_formats(ctx, fmts_list); +} + +static int config_input(AVFilterLink *inlink) +{ + AVFilterContext *ctx = inlink->dst; + XDIFContext *s = ctx->priv; + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); + int depth; + + s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h); + s->planeheight[0] = s->planeheight[3] = inlink->h; + s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w); + s->planewidth[0] = s->planewidth[3] = inlink->w; + + if (inlink->h < 3) { + av_log(ctx, AV_LOG_ERROR, "Video of less than 3 lines is not supported\n"); + return AVERROR(EINVAL); + } + + s->nb_planes = av_pix_fmt_count_planes(inlink->format); + depth = desc->comp[0].depth; + s->deinterlace_slice = depth <= 8 ? deinterlace_slice_8 : deinterlace_slice_16; + s->threshold = (1 << depth) / 4; + + return 0; +} + +static int config_output(AVFilterLink *outlink) +{ + AVFilterContext *ctx = outlink->src; + AVFilterLink *inlink = ctx->inputs[0]; + + outlink->time_base.num = inlink->time_base.num; + outlink->time_base.den = inlink->time_base.den * 2; + outlink->frame_rate.num = inlink->frame_rate.num * 2; + outlink->frame_rate.den = inlink->frame_rate.den; + + return 0; +} + +static int filter(AVFilterContext *ctx, int is_second, AVFrame *in) +{ + XDIFContext *s = ctx->priv; + AVFilterLink *outlink = ctx->outputs[0]; + AVFrame *out; + ThreadData td; + + out = ff_get_video_buffer(outlink, outlink->w, outlink->h); + if (!out) + return AVERROR(ENOMEM); + av_frame_copy_props(out, in); + out->interlaced_frame = 0; + out->pts = s->pts; + + td.out = out; td.in = in; + ctx->internal->execute(ctx, s->deinterlace_slice, &td, NULL, + FFMIN(s->planeheight[1] / 8, + ff_filter_get_nb_threads(ctx))); + + if (s->mode) + s->field = !s->field; + + return ff_filter_frame(outlink, out); +} + +static int filter_frame(AVFilterLink *inlink, AVFrame *in) +{ + AVFilterContext *ctx = inlink->dst; + XDIFContext *s = ctx->priv; + int ret; + + if (!s->prev) { + s->prev = in; + return 0; + } + + if ((s->deint && !in->interlaced_frame) || ctx->is_disabled) { + s->prev->pts *= 2; + ret = ff_filter_frame(ctx->outputs[0], s->prev); + s->prev = in; + return ret; + } + + s->pts = s->prev->pts * 2; + ret = filter(ctx, 0, s->prev); + if (ret < 0 || s->mode == 0) { + av_frame_free(&s->prev); + s->prev = in; + return ret; + } + + s->pts = s->prev->pts + in->pts; + ret = filter(ctx, 1, s->prev); + av_frame_free(&s->prev); + s->prev = in; + return ret; +} + +static int request_frame(AVFilterLink *link) +{ + AVFilterContext *ctx = link->src; + XDIFContext *s = ctx->priv; + int ret; + + if (s->eof) + return AVERROR_EOF; + + ret = ff_request_frame(ctx->inputs[0]); + + if (ret == AVERROR_EOF) { + AVFrame *next = av_frame_clone(s->prev); + + if (!next) + return AVERROR(ENOMEM); + + next->pts = s->prev->pts + av_rescale_q(1, av_inv_q(ctx->outputs[0]->frame_rate), + ctx->outputs[0]->time_base); + s->eof = 1; + ret = filter_frame(ctx->inputs[0], next); + } else if (ret < 0) { + return ret; + } + + return ret; +} + +static av_cold void uninit(AVFilterContext *ctx) +{ + XDIFContext *s = ctx->priv; + + av_frame_free(&s->prev); +} + +static const AVFilterPad xdif_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = filter_frame, + .config_props = config_input, + }, + { NULL } +}; + +static const AVFilterPad xdif_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = config_output, + .request_frame = request_frame, + }, + { NULL } +}; + +AVFilter ff_vf_xdif = { + .name = "xdif", + .description = NULL_IF_CONFIG_SMALL("Apply X deinterlace."), + .priv_size = sizeof(XDIFContext), + .priv_class = &xdif_class, + .uninit = uninit, + .query_formats = query_formats, + .inputs = xdif_inputs, + .outputs = xdif_outputs, + .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, + .process_command = ff_filter_process_command, +}; diff --git a/libavfilter/xdif.h b/libavfilter/xdif.h new file mode 100644 index 0000000000..e66d966ef4 --- /dev/null +++ b/libavfilter/xdif.h @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2000-2011 VLC authors and VideoLAN + * Copyright (c) Laurent Aimar + * Copyright (c) 2021 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 + */ + +#ifndef AVFILTER_XDIF_H +#define AVFILTER_XDIF_H + +#include "avfilter.h" + +typedef struct XDIFContext { + const AVClass *class; + + int mode; ///< 0 is frame, 1 is field + int parity; ///< frame field parity + int deint; ///< which frames to deinterlace + int planewidth[4]; ///< width of each plane + int planeheight[4]; ///< height of each plane + int field; ///< which field are we on, 0 or 1 + int eof; + int nb_planes; + int threshold; + int64_t pts; + + AVFrame *prev; + + int (*deinterlace_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); +} XDIFContext; + +#endif diff --git a/libavfilter/xdif_template.c b/libavfilter/xdif_template.c new file mode 100644 index 0000000000..298a6b08f2 --- /dev/null +++ b/libavfilter/xdif_template.c @@ -0,0 +1,289 @@ +/* + * Copyright (c) 2000-2011 VLC authors and VideoLAN + * Copyright (c) Laurent Aimar + * Copyright (c) 2021 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/avassert.h" +#include "avfilter.h" +#include "formats.h" +#include "internal.h" +#include "video.h" + +#undef pixel +#if DEPTH == 8 +#define pixel uint8_t +#else +#define pixel uint16_t +#endif + +#undef fn +#undef fn2 +#undef fn3 + +#define fn3(a,b) a##_##b +#define fn2(a,b) fn3(a,b) +#define fn(a) fn2(a, DEPTH) + +static void fn(XDeintNxNField)(pixel *dst, int dst_linesize, + const pixel *src, int src_linesize, + int width, int height) +{ + /* Interlaced */ + for (int y = 0; y < height; y += 2) { + memcpy(dst, src, width * sizeof(pixel)); + dst += dst_linesize; + + if (y < height - 2) { + for (int x = 0; x < width; x++) + dst[x] = (src[x] + src[x + 2 * src_linesize] + 1) >> 1; + } else { + /* Blend last line */ + for (int x = 0; x < width; x++) + dst[x] = (src[x] + src[x - 2 * src_linesize] + 1) >> 1; + } + dst += 1 * dst_linesize; + src += 2 * src_linesize; + } +} + +static int fn(XDeintNxNDetect)(const pixel *src, int src_linesize, + int height, int width, int threshold) +{ + int fc = 0; + + /* Detect interlacing */ + for (int y = 0; y < height - 2; y += 2) { + int ff = 0, fr = 0; + const pixel *s = &src[y * src_linesize]; + + for (int x = 0; x < width; x++) { + fr += ssd(s[x] - s[1 * src_linesize+x]); + ff += ssd(s[x] - s[2 * src_linesize+x]); + } + + if (ff < fr || fr > threshold) + fc++; + } + + return fc >= 1; +} + +static void fn(XDeintNxNFrame)(pixel *dst, int dst_linesize, + const pixel *src, int src_linesize, + int width, int height) +{ + /* Progressive */ + for (int y = 0; y < height; y += 2) { + memcpy(dst, src, width * sizeof(pixel)); + dst += dst_linesize; + + if (y < height - 2) { + for (int x = 0; x < width; x++) + dst[x] = (src[x] + 2 * src[x + src_linesize] + src[x + 2 * src_linesize] + 2) >> 2; + } else { + /* Blend last line */ + for (int x = 0; x < width; x++) + dst[x] = (src[x] + src[src_linesize + x] + 1) >> 1; + } + + dst += 1 * dst_linesize; + src += 2 * src_linesize; + } +} + +static void fn(XDeintNxN)(pixel *dst, int dst_linesize, const pixel *src, + int src_linesize, int width, int height, int threshold) +{ + if (fn(XDeintNxNDetect)(src, src_linesize, width, height, threshold)) + fn(XDeintNxNField)(dst, dst_linesize, src, src_linesize, width, height); + else + fn(XDeintNxNFrame)(dst, dst_linesize, src, src_linesize, width, height); +} + +static void fn(XDeint8x8Merge)(pixel *dst, int dst_linesize, + const pixel *src1, const pixel *src2, + int src_linesize) +{ + /* Progressive */ + for (int y = 0; y < 8; y += 2) { + memcpy(dst, src1, 8 * sizeof(pixel)); + dst += dst_linesize; + + for (int x = 0; x < 8; x++) + dst[x] = (src1[x] + 6 * src2[x] + + src1[x + src_linesize] + 4) >> 3; + + dst += dst_linesize; + src1 += src_linesize * 2; + src2 += src_linesize * 2; + } +} + +static void fn(XDeint8x8Field)(pixel *dst, int dst_linesize, + const pixel *src, int src_linesize) +{ + /* Interlaced */ + for (int y = 0; y < 8; y += 2) { + memcpy(dst, src, 8 * sizeof(pixel)); + dst += dst_linesize; + + for (int x = 0; x < 8; x++) { + const pixel *src1 = src; + const pixel *src2 = src + 2 * src_linesize; + const int64_t c0 = ssd(src1[x-4]-src2[x-2]) + ssd(src1[x-3]-src2[x-1]) + + ssd(src1[x-2]-src2[x+0]) + ssd(src1[x-1]-src2[x+1]) + + ssd(src1[x+0]-src2[x+2]) + ssd(src1[x+1]-src2[x+3]) + + ssd(src1[x+2]-src2[x+4]) + ssd(src1[x+3]-src2[x+5]); + + const int64_t c1 = ssd(src1[x-3]-src2[x-3]) + ssd(src1[x-2]-src2[x-2]) + + ssd(src1[x-1]-src2[x-1]) + ssd(src1[x+0]-src2[x+0]) + + ssd(src1[x+1]-src2[x+1]) + ssd(src1[x+2]-src2[x+2]) + + ssd(src1[x+3]-src2[x+3]) + ssd(src1[x+4]-src2[x+4]); + + const int64_t c2 = ssd(src1[x-2]-src2[x-4]) + ssd(src1[x-1]-src2[x-3]) + + ssd(src1[x+0]-src2[x-2]) + ssd(src1[x+1]-src2[x-1]) + + ssd(src1[x+2]-src2[x+0]) + ssd(src1[x+3]-src2[x+1]) + + ssd(src1[x+4]-src2[x+2]) + ssd(src1[x+5]-src2[x+3]); + + if (c0 < c1 && c1 <= c2) + dst[x] = (src1[x-1] + src2[x+1] + 1) >> 1; + else if (c2 < c1 && c1 <= c0) + dst[x] = (src1[x+1] + src2[x-1] + 1) >> 1; + else + dst[x] = (src1[x+0] + src2[x+0] + 1) >> 1; + } + + dst += 1 * dst_linesize; + src += 2 * src_linesize; + } +} + +static void fn(XDeint8x8FieldE)(pixel *dst, int dst_linesize, + const pixel *src, int src_linesize) +{ + /* Interlaced */ + for (int y = 0; y < 8; y += 2) { + memcpy(dst, src, 8 * sizeof(pixel)); + dst += dst_linesize; + for (int x = 0; x < 8; x++) + dst[x] = (src[x] + src[x + 2 * src_linesize] + 1) >> 1; + + dst += 1 * dst_linesize; + src += 2 * src_linesize; + } +} + +static int fn(XDeint8x8Detect)(const pixel *src, int src_linesize, int threshold) +{ + int fc = 0; + + /* Detect interlacing */ + for (int y = 0; y < 8; y += 2) { + int ff = 0, fr = 0; + + for (int x = 0; x < 8; x++) { + fr += ssd(src[x] - src[1 * src_linesize + x]) + + ssd(src[src_linesize + x] - src[2 * src_linesize + x]); + ff += ssd(src[x] - src[2 * src_linesize + x]) + + ssd(src[src_linesize + x] - src[3 * src_linesize + x]); + } + + if (ff < fr || fr > threshold) + fc++; + + src += 2 * src_linesize; + } + + return fc >= 1; +} + +static void fn(XDeintBand8x8)(pixel *dst, int dst_linesize, + const pixel *src, int src_linesize, + const int mbx, int modx, int threshold) +{ + for (int x = 0; x < mbx; x++) { + if (fn(XDeint8x8Detect)(src, src_linesize, threshold)) { + if (x == 0 || x == mbx - 1) + fn(XDeint8x8FieldE)(dst, dst_linesize, src, src_linesize); + else + fn(XDeint8x8Field)(dst, dst_linesize, src, src_linesize); + } else { + fn(XDeint8x8Merge)(dst, dst_linesize, + src + 0 * src_linesize, src + 1 * src_linesize, + src_linesize); + } + + dst += 8; + src += 8; + } + + if (modx) + fn(XDeintNxN)(dst, dst_linesize, src, src_linesize, modx, 8, threshold); +} + +static int fn(deinterlace_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) +{ + XDIFContext *s = ctx->priv; + ThreadData *td = arg; + AVFrame *out = td->out; + AVFrame *in = td->in; + const int threshold = s->threshold; + const int first = s->field == (s->parity == -1 ? in->top_field_first == 0 : s->parity == 0 ? 0 : 1); + const int flip = first ? 1 : -1; + + for (int plane = 0; plane < s->nb_planes; plane++) { + const int width = s->planewidth[plane]; + const int height = s->planeheight[plane]; + const uint8_t *src_data = in->data[plane] + (flip == -1) * (height - 1) * in->linesize[plane]; + uint8_t *dst_data = out->data[plane] + (flip == -1) * (height - 1) * out->linesize[plane]; + const int src_linesize = flip * in->linesize[plane] / sizeof(pixel); + const int dst_linesize = flip * out->linesize[plane] / sizeof(pixel); + const int start = FFALIGN((height * jobnr) / nb_jobs, 8); + const int end = FFMIN(height, FFALIGN((height * (jobnr+1)) / nb_jobs, 8)); + const int mby = FFMAX((end - start) / 8 - ((jobnr + 1) == nb_jobs), 0); + const int mbx = width / 8; + const int mody = (end - start) - 8 * mby; + const int modx = width - 8 * mbx; + + for (int y = 0; y < mby; y++) { + const pixel *src = (const pixel *)src_data + (start + y * 8) * src_linesize; + pixel *dst = (pixel *)dst_data + (start + y * 8) * dst_linesize; + + fn(XDeintBand8x8)(dst, dst_linesize, src, src_linesize, mbx, modx, threshold); + } + + if (mody) { + const pixel *src = (const pixel *)src_data + (start + mby * 8) * src_linesize; + pixel *dst = (pixel *)dst_data + (start + mby * 8) * dst_linesize; + + for (int x = 0; x < mbx; x++) { + fn(XDeintNxN)(dst, dst_linesize, src, src_linesize, 8, mody, threshold); + + dst += 8; + src += 8; + } + + if (modx) + fn(XDeintNxN)(dst, dst_linesize, src, src_linesize, modx, mody, threshold); + } + } + + return 0; +}