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[77.181.23.241]) by smtp.googlemail.com with ESMTPSA id v196sm2493085wmv.5.2017.02.14.11.46.11 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 14 Feb 2017 11:46:12 -0800 (PST) From: Daniel Oberhoff Mime-Version: 1.0 (Mac OS X Mail 10.2 \(3259\)) Message-Id: Date: Tue, 14 Feb 2017 20:46:10 +0100 To: FFmpeg development discussions and patches X-Mailer: Apple Mail (2.3259) Subject: [FFmpeg-devel] [PATCH] avfilter: implement vf_remap_frac 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 Cc: Michael Riss Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" this is a fractional version of remap that interprets the x/y maps as 13.3bit fixed point values, i.e the three least significant bits are used for inter-pixel interpolation by weighed averaging the four adjacent pixels Signed-off-by: Daniel Oberhoff --- libavfilter/Makefile | 1 + libavfilter/allfilters.c | 1 + libavfilter/vf_remap_frac.c | 491 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 493 insertions(+) create mode 100644 libavfilter/vf_remap_frac.c diff --git a/libavfilter/Makefile b/libavfilter/Makefile index a986322..504e66a 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -250,6 +250,7 @@ OBJS-$(CONFIG_RANDOM_FILTER) += vf_random.o OBJS-$(CONFIG_READVITC_FILTER) += vf_readvitc.o OBJS-$(CONFIG_REALTIME_FILTER) += f_realtime.o OBJS-$(CONFIG_REMAP_FILTER) += vf_remap.o framesync.o +OBJS-$(CONFIG_REMAP_FRAC_FILTER) += vf_remap_frac.o framesync.o OBJS-$(CONFIG_HALVE_FILTER) += vf_halve.o framesync.o OBJS-$(CONFIG_REMOVEGRAIN_FILTER) += vf_removegrain.o OBJS-$(CONFIG_REMOVELOGO_FILTER) += bbox.o lswsutils.o lavfutils.o vf_removelogo.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 0b9b69c..0edd816 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -265,6 +265,7 @@ void avfilter_register_all(void) REGISTER_FILTER(READVITC, readvitc, vf); REGISTER_FILTER(REALTIME, realtime, vf); REGISTER_FILTER(REMAP, remap, vf); + REGISTER_FILTER(REMAP_FRAC, remap_frac, vf); REGISTER_FILTER(HALVE, halve, vf); REGISTER_FILTER(REMOVEGRAIN, removegrain, vf); REGISTER_FILTER(REMOVELOGO, removelogo, vf); diff --git a/libavfilter/vf_remap_frac.c b/libavfilter/vf_remap_frac.c new file mode 100644 index 0000000..f0e33d4 --- /dev/null +++ b/libavfilter/vf_remap_frac.c @@ -0,0 +1,491 @@ +/* + * Copyright (c) 2016 Floris Sluiter + * + * 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 + */ + +/** + * @file + * Pixel remap_frac filter + * This is a fractional version of the remap filter. The x and y maps + * are interpreted as 13.3 fixed point values, i.e. the 3 least significant + * bits are used for inter-pixel-interpolation by weighed averaging the four + * adjacaent pixels. + */ + +#include "libavutil/imgutils.h" +#include "libavutil/pixdesc.h" +#include "libavutil/opt.h" +#include "avfilter.h" +#include "formats.h" +#include "framesync.h" +#include "internal.h" +#include "video.h" + +typedef struct RemapFracContext { + const AVClass *class; + int nb_planes; + int nb_components; + int step; + FFFrameSync fs; + + void (*remap_frac_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); +} RemapFracContext; + +#define OFFSET(x) offsetof(RemapFracContext, x) +#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM + +static const AVOption remap_frac_options[] = { + { NULL } +}; + +AVFILTER_DEFINE_CLASS(remap_frac); + +typedef struct ThreadData { + AVFrame *in, *xin, *yin, *out; + int nb_planes; + int nb_components; + int step; +} ThreadData; + +static int query_formats(AVFilterContext *ctx) +{ + static const enum AVPixelFormat pix_fmts[] = { + AV_PIX_FMT_YUVA444P, + AV_PIX_FMT_YUV444P, + AV_PIX_FMT_YUVJ444P, + AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, + AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, + AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, + AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12, + AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV444P16, + AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P16, + AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12, + AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16, + AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16, + AV_PIX_FMT_RGB48, AV_PIX_FMT_BGR48, + AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64, + AV_PIX_FMT_NONE + }; + static const enum AVPixelFormat map_fmts[] = { + AV_PIX_FMT_GRAY16, + AV_PIX_FMT_NONE + }; + AVFilterFormats *pix_formats = NULL, *map_formats = NULL; + int ret; + + if (!(pix_formats = ff_make_format_list(pix_fmts)) || + !(map_formats = ff_make_format_list(map_fmts))) { + ret = AVERROR(ENOMEM); + goto fail; + } + if ((ret = ff_formats_ref(pix_formats, &ctx->inputs[0]->out_formats)) < 0 || + (ret = ff_formats_ref(map_formats, &ctx->inputs[1]->out_formats)) < 0 || + (ret = ff_formats_ref(map_formats, &ctx->inputs[2]->out_formats)) < 0 || + (ret = ff_formats_ref(pix_formats, &ctx->outputs[0]->in_formats)) < 0) + goto fail; + return 0; +fail: + if (pix_formats) + av_freep(&pix_formats->formats); + av_freep(&pix_formats); + if (map_formats) + av_freep(&map_formats->formats); + av_freep(&map_formats); + return ret; +} + +/** + * remap_frac_planar algorithm expects planes of same size + */ +static void remap_frac_planar_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) +{ + const ThreadData *td = (ThreadData*)arg; + const AVFrame *in = td->in; + const AVFrame *xin = td->xin; + const AVFrame *yin = td->yin; + const AVFrame *out = td->out; + + const int xlinesize = xin->linesize[0] / 2; + const int ylinesize = yin->linesize[0] / 2; + const uint16_t one = 1 << 3; + int x , y, plane; + + for (plane = 0; plane < td->nb_planes ; plane++) { + uint8_t *dst = out->data[plane]; + const int dlinesize = out->linesize[plane]; + const uint8_t *src = in->data[plane]; + const int slinesize = in->linesize[plane]; + const uint16_t *xmap = (const uint16_t *)xin->data[0]; + const uint16_t *ymap = (const uint16_t *)yin->data[0]; + + for (y = 0; y < out->height; y++) { + for (x = 0; x < out->width; x++) { + uint16_t x_pos = xmap[x]; + uint16_t y_pos = ymap[x]; + uint16_t x_pos_int = x_pos >> 3; + uint16_t y_pos_int = y_pos >> 3; + uint16_t x_pos_frac = x_pos & (one - 1); + uint16_t y_pos_frac = y_pos & (one - 1); + if (y_pos_int < (in->height - 1) && x_pos_int < (in->width - 1)) { + dst[x] = + (uint8_t)(( + (uint16_t)(src[y_pos_int * slinesize + x_pos_int]) * (one - x_pos_frac) * (one - y_pos_frac) + + (uint16_t)(src[y_pos_int * slinesize + x_pos_int + 1]) * x_pos_frac * (one - y_pos_frac) + + (uint16_t)(src[(y_pos_int + 1) * slinesize + x_pos_int + 1]) * x_pos_frac * y_pos_frac + + (uint16_t)(src[(y_pos_int + 1) * slinesize + x_pos_int]) * (one - x_pos_frac) * y_pos_frac + ) >> 6); + } else { + dst[x] = 0; + } + } + dst += dlinesize; + xmap += xlinesize; + ymap += ylinesize; + } + } +} + +static void remap_frac_planar16_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) +{ + const ThreadData *td = (ThreadData*)arg; + const AVFrame *in = td->in; + const AVFrame *xin = td->xin; + const AVFrame *yin = td->yin; + const AVFrame *out = td->out; + + const int xlinesize = xin->linesize[0] / 2; + const int ylinesize = yin->linesize[0] / 2; + const uint32_t one = 1 << 3; + int x , y, plane; + + for (plane = 0; plane < td->nb_planes ; plane++) { + uint16_t *dst = (uint16_t *)out->data[plane]; + const int dlinesize = out->linesize[plane] / 2; + const uint16_t *src = (const uint16_t *)in->data[plane]; + const int slinesize = in->linesize[plane] / 2; + const uint16_t *xmap = (const uint16_t *)xin->data[0]; + const uint16_t *ymap = (const uint16_t *)yin->data[0]; + + for (y = 0; y < out->height; y++) { + for (x = 0; x < out->width; x++) { + uint16_t x_pos = xmap[x]; + uint16_t y_pos = ymap[x]; + uint16_t x_pos_int = x_pos >> 3; + uint16_t y_pos_int = y_pos >> 3; + uint32_t x_pos_frac = x_pos & (one - 1); + uint32_t y_pos_frac = y_pos & (one - 1); + if (y_pos_int < (in->height - 1) && x_pos_int < (in->width - 1)) { + uint16_t y_offset = y_pos_int * slinesize; + dst[x] = + (uint16_t)(( + (uint32_t)(src[y_offset + x_pos_int]) * x_pos_frac * y_pos_frac + + (uint32_t)(src[y_offset + x_pos_int + 1]) * (one - x_pos_frac) * y_pos_frac + + (uint32_t)(src[y_offset + slinesize + x_pos_int + 1]) * (one - x_pos_frac) * (one - y_pos_frac) + + (uint32_t)(src[y_offset + slinesize + x_pos_int]) * x_pos_frac * (one - y_pos_frac) + ) >> 6); + } else { + dst[x] = 0; + } + } + dst += dlinesize; + xmap += xlinesize; + ymap += ylinesize; + } + } +} + +/** + * remap_frac_packed algorithm expects pixels with both padded bits (step) and + * number of components correctly set. + */ +static void remap_frac_packed_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) +{ + const ThreadData *td = (ThreadData*)arg; + const AVFrame *in = td->in; + const AVFrame *xin = td->xin; + const AVFrame *yin = td->yin; + const AVFrame *out = td->out; + + uint8_t *dst = out->data[0]; + const uint16_t one = 1 << 3; + const uint8_t *src = in->data[0]; + const int dlinesize = out->linesize[0]; + const int slinesize = in->linesize[0]; + const int xlinesize = xin->linesize[0] / 2; + const int ylinesize = yin->linesize[0] / 2; + const uint16_t *xmap = (const uint16_t *)xin->data[0]; + const uint16_t *ymap = (const uint16_t *)yin->data[0]; + const int step = td->step; + int c, x, y; + + for (y = 0; y < out->height; y++) { + for (x = 0; x < out->width; x++) { + uint16_t x_pos = xmap[x]; + uint16_t y_pos = ymap[x]; + uint16_t x_pos_int = x_pos >> 3; + uint16_t y_pos_int = y_pos >> 3; + uint32_t x_pos_frac = x_pos & (one - 1); + uint32_t y_pos_frac = y_pos & (one - 1); + if (y_pos_int < (in->height - 1) && x_pos_int < (in->width - 1)) { + for (c = 0; c < td->nb_components; c++) { + dst[x * step + c] = + (uint16_t)(( + (uint32_t)(src[y_pos_int * slinesize + x_pos_int * step + c]) * x_pos_frac * y_pos_frac + + (uint32_t)(src[y_pos_int * slinesize + (x_pos_int + 1) * step + c]) * (one - x_pos_frac) * y_pos_frac + + (uint32_t)(src[(y_pos_int + 1) * slinesize + (x_pos_int + 1) * step + c]) * (one - x_pos_frac) * (one - y_pos_frac) + + (uint32_t)(src[(y_pos_int + 1) * slinesize + x_pos_int * step + c]) * x_pos_frac * (one - y_pos_frac) + ) >> 6); + } + } else { + for (c = 0; c < td->nb_components; c++) { + dst[x * step + c] = 0; + } + } + } + dst += dlinesize; + xmap += xlinesize; + ymap += ylinesize; + } + printf("remappacked8\n"); +} + +static void remap_frac_packed16_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) +{ + const ThreadData *td = (ThreadData*)arg; + const AVFrame *in = td->in; + const AVFrame *xin = td->xin; + const AVFrame *yin = td->yin; + const AVFrame *out = td->out; + + uint16_t *dst = (uint16_t *)out->data[0]; + const uint16_t one = 1 << 3; + const uint16_t *src = (const uint16_t *)in->data[0]; + const int dlinesize = out->linesize[0] / 2; + const int slinesize = in->linesize[0] / 2; + const int xlinesize = xin->linesize[0] / 2; + const int ylinesize = yin->linesize[0] / 2; + const uint16_t *xmap = (const uint16_t *)xin->data[0]; + const uint16_t *ymap = (const uint16_t *)yin->data[0]; + const int step = td->step / 2; + int c, x, y; + + for (y = 0; y < out->height; y++) { + for (x = 0; x < out->width; x++) { + uint16_t x_pos = xmap[x]; + uint16_t y_pos = ymap[x]; + uint16_t x_pos_int = x_pos >> 3; + uint16_t y_pos_int = y_pos >> 3; + uint16_t x_pos_frac = x_pos & (one - 1); + uint16_t y_pos_frac = y_pos & (one - 1); + if (y_pos_int < (in->height - 1) && x_pos_int < (in->width - 1)) { + for (c = 0; c < td->nb_components; c++) { + dst[x * step + c] = + (uint8_t)(( + (uint16_t)(src[y_pos_int * slinesize + x_pos_int * step + c]) * x_pos_frac * y_pos_frac + + (uint16_t)(src[y_pos_int * slinesize + (x_pos_int + 1) * step + c]) * (one - x_pos_frac) * y_pos_frac + + (uint16_t)(src[(y_pos_int + 1) * slinesize + (x_pos_int + 1) * step + c]) * (one - x_pos_frac) * (one - y_pos_frac) + + (uint16_t)(src[(y_pos_int + 1) * slinesize + x_pos_int * step + c]) * x_pos_frac * (one - y_pos_frac) + ) >> 6); + } + } else { + for (c = 0; c < td->nb_components; c++) { + dst[x * step + c] = 0; + } + } + } + dst += dlinesize; + xmap += xlinesize; + ymap += ylinesize; + } + printf("remappacked16\n"); +} + +static int config_input(AVFilterLink *inlink) +{ + AVFilterContext *ctx = inlink->dst; + RemapFracContext *s = ctx->priv; + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); + + s->nb_planes = av_pix_fmt_count_planes(inlink->format); + s->nb_components = desc->nb_components; + + if (desc->comp[0].depth == 8) { + if (s->nb_planes > 1 || s->nb_components == 1) { + s->remap_frac_slice = remap_frac_planar_slice; + } else { + s->remap_frac_slice = remap_frac_packed_slice; + } + } else { + if (s->nb_planes > 1 || s->nb_components == 1) { + s->remap_frac_slice = remap_frac_planar16_slice; + } else { + s->remap_frac_slice = remap_frac_packed16_slice; + } + } + + s->step = av_get_padded_bits_per_pixel(desc) >> 3; + return 0; +} + +static int process_frame(FFFrameSync *fs) +{ + AVFilterContext *ctx = fs->parent; + RemapFracContext *s = fs->opaque; + AVFilterLink *outlink = ctx->outputs[0]; + AVFrame *out, *in, *xpic, *ypic; + int ret; + + if ((ret = ff_framesync_get_frame(&s->fs, 0, &in, 0)) < 0 || + (ret = ff_framesync_get_frame(&s->fs, 1, &xpic, 0)) < 0 || + (ret = ff_framesync_get_frame(&s->fs, 2, &ypic, 0)) < 0) + return ret; + + if (ctx->is_disabled) { + out = av_frame_clone(in); + 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, in); + + td.in = in; + td.xin = xpic; + td.yin = ypic; + td.out = out; + td.nb_planes = s->nb_planes; + td.nb_components = s->nb_components; + td.step = s->step; + ctx->internal->execute(ctx, s->remap_frac_slice, &td, NULL, FFMIN(outlink->h, ctx->graph->nb_threads)); + } + out->pts = av_rescale_q(in->pts, s->fs.time_base, outlink->time_base); + + return ff_filter_frame(outlink, out); +} + +static int config_output(AVFilterLink *outlink) +{ + AVFilterContext *ctx = outlink->src; + RemapFracContext *s = ctx->priv; + AVFilterLink *srclink = ctx->inputs[0]; + AVFilterLink *xlink = ctx->inputs[1]; + AVFilterLink *ylink = ctx->inputs[2]; + FFFrameSyncIn *in; + int ret; + + if (xlink->w != ylink->w || xlink->h != ylink->h) { + av_log(ctx, AV_LOG_ERROR, "Second input link %s parameters " + "(size %dx%d) do not match the corresponding " + "third input link %s parameters (%dx%d)\n", + ctx->input_pads[1].name, xlink->w, xlink->h, + ctx->input_pads[2].name, ylink->w, ylink->h); + return AVERROR(EINVAL); + } + + outlink->w = xlink->w; + outlink->h = xlink->h; + outlink->time_base = srclink->time_base; + outlink->sample_aspect_ratio = srclink->sample_aspect_ratio; + outlink->frame_rate = srclink->frame_rate; + + ret = ff_framesync_init(&s->fs, ctx, 3); + if (ret < 0) + return ret; + + in = s->fs.in; + in[0].time_base = srclink->time_base; + in[1].time_base = xlink->time_base; + in[2].time_base = ylink->time_base; + in[0].sync = 2; + in[0].before = EXT_STOP; + in[0].after = EXT_STOP; + in[1].sync = 1; + in[1].before = EXT_NULL; + in[1].after = EXT_INFINITY; + in[2].sync = 1; + in[2].before = EXT_NULL; + in[2].after = EXT_INFINITY; + s->fs.opaque = s; + s->fs.on_event = process_frame; + + return ff_framesync_configure(&s->fs); +} + +static int filter_frame(AVFilterLink *inlink, AVFrame *buf) +{ + RemapFracContext *s = inlink->dst->priv; + return ff_framesync_filter_frame(&s->fs, inlink, buf); +} + +static int request_frame(AVFilterLink *outlink) +{ + RemapFracContext *s = outlink->src->priv; + return ff_framesync_request_frame(&s->fs, outlink); +} + +static av_cold void uninit(AVFilterContext *ctx) +{ + RemapFracContext *s = ctx->priv; + + ff_framesync_uninit(&s->fs); +} + +static const AVFilterPad remap_frac_inputs[] = { + { + .name = "source", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = filter_frame, + .config_props = config_input, + }, + { + .name = "xmap", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = filter_frame, + }, + { + .name = "ymap", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = filter_frame, + }, + { NULL } +}; + +static const AVFilterPad remap_frac_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = config_output, + .request_frame = request_frame, + }, + { NULL } +}; + +AVFilter ff_vf_remap_frac = { + .name = "remap_frac", + .description = NULL_IF_CONFIG_SMALL("remap pixels with 3bit subpixel accuracy"), + .priv_size = sizeof(RemapFracContext), + .uninit = uninit, + .query_formats = query_formats, + .inputs = remap_frac_inputs, + .outputs = remap_frac_outputs, + .priv_class = &remap_frac_class, + .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, +};