| /* |
| * Copyright (c) 2012-2013 Oka Motofumi (chikuzen.mo at gmail dot com) |
| * Copyright (c) 2015 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/intreadwrite.h" |
| #include "libavutil/pixdesc.h" |
| #include "libavutil/opt.h" |
| #include "avfilter.h" |
| #include "formats.h" |
| #include "internal.h" |
| #include "video.h" |
| |
| typedef struct ThreadData { |
| AVFrame *in, *out; |
| } ThreadData; |
| |
| typedef struct NContext { |
| const AVClass *class; |
| int planeheight[4]; |
| int planewidth[4]; |
| int nb_planes; |
| int threshold[4]; |
| int coordinates; |
| |
| int depth; |
| int max; |
| int bpc; |
| |
| void (*filter)(uint8_t *dst, const uint8_t *p1, int width, |
| int threshold, const uint8_t *coordinates[], int coord, |
| int maxc); |
| } NContext; |
| |
| 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 erosion(uint8_t *dst, const uint8_t *p1, int width, |
| int threshold, const uint8_t *coordinates[], int coord, |
| int maxc) |
| { |
| int x, i; |
| |
| for (x = 0; x < width; x++) { |
| int min = p1[x]; |
| int limit = FFMAX(min - threshold, 0); |
| |
| for (i = 0; i < 8; i++) { |
| if (coord & (1 << i)) { |
| min = FFMIN(min, *(coordinates[i] + x)); |
| } |
| min = FFMAX(min, limit); |
| } |
| |
| dst[x] = min; |
| } |
| } |
| |
| static void erosion16(uint8_t *dstp, const uint8_t *p1, int width, |
| int threshold, const uint8_t *coordinates[], int coord, |
| int maxc) |
| { |
| uint16_t *dst = (uint16_t *)dstp; |
| int x, i; |
| |
| for (x = 0; x < width; x++) { |
| int min = AV_RN16A(&p1[2 * x]); |
| int limit = FFMAX(min - threshold, 0); |
| |
| for (i = 0; i < 8; i++) { |
| if (coord & (1 << i)) { |
| min = FFMIN(min, AV_RN16A(coordinates[i] + x * 2)); |
| } |
| min = FFMAX(min, limit); |
| } |
| |
| dst[x] = min; |
| } |
| } |
| |
| static void dilation(uint8_t *dst, const uint8_t *p1, int width, |
| int threshold, const uint8_t *coordinates[], int coord, |
| int maxc) |
| { |
| int x, i; |
| |
| for (x = 0; x < width; x++) { |
| int max = p1[x]; |
| int limit = FFMIN(max + threshold, 255); |
| |
| for (i = 0; i < 8; i++) { |
| if (coord & (1 << i)) { |
| max = FFMAX(max, *(coordinates[i] + x)); |
| } |
| max = FFMIN(max, limit); |
| } |
| |
| dst[x] = max; |
| } |
| } |
| |
| static void dilation16(uint8_t *dstp, const uint8_t *p1, int width, |
| int threshold, const uint8_t *coordinates[], int coord, |
| int maxc) |
| { |
| uint16_t *dst = (uint16_t *)dstp; |
| int x, i; |
| |
| for (x = 0; x < width; x++) { |
| int max = AV_RN16A(&p1[x * 2]); |
| int limit = FFMIN(max + threshold, maxc); |
| |
| for (i = 0; i < 8; i++) { |
| if (coord & (1 << i)) { |
| max = FFMAX(max, AV_RN16A(coordinates[i] + x * 2)); |
| } |
| max = FFMIN(max, limit); |
| } |
| |
| dst[x] = max; |
| } |
| } |
| |
| static void deflate(uint8_t *dst, const uint8_t *p1, int width, |
| int threshold, const uint8_t *coordinates[], int coord, |
| int maxc) |
| { |
| int x, i; |
| |
| for (x = 0; x < width; x++) { |
| int sum = 0; |
| int limit = FFMAX(p1[x] - threshold, 0); |
| |
| for (i = 0; i < 8; sum += *(coordinates[i++] + x)); |
| |
| dst[x] = FFMAX(FFMIN(sum / 8, p1[x]), limit); |
| } |
| } |
| |
| static void deflate16(uint8_t *dstp, const uint8_t *p1, int width, |
| int threshold, const uint8_t *coordinates[], int coord, |
| int maxc) |
| { |
| uint16_t *dst = (uint16_t *)dstp; |
| int x, i; |
| |
| for (x = 0; x < width; x++) { |
| int sum = 0; |
| int limit = FFMAX(AV_RN16A(&p1[2 * x]) - threshold, 0); |
| |
| for (i = 0; i < 8; sum += AV_RN16A(coordinates[i++] + x * 2)); |
| |
| dst[x] = FFMAX(FFMIN(sum / 8, AV_RN16A(&p1[2 * x])), limit); |
| } |
| } |
| |
| static void inflate(uint8_t *dst, const uint8_t *p1, int width, |
| int threshold, const uint8_t *coordinates[], int coord, |
| int maxc) |
| { |
| int x, i; |
| |
| for (x = 0; x < width; x++) { |
| int sum = 0; |
| int limit = FFMIN(p1[x] + threshold, 255); |
| |
| for (i = 0; i < 8; sum += *(coordinates[i++] + x)); |
| |
| dst[x] = FFMIN(FFMAX(sum / 8, p1[x]), limit); |
| } |
| } |
| |
| static void inflate16(uint8_t *dstp, const uint8_t *p1, int width, |
| int threshold, const uint8_t *coordinates[], int coord, |
| int maxc) |
| { |
| uint16_t *dst = (uint16_t *)dstp; |
| int x, i; |
| |
| for (x = 0; x < width; x++) { |
| int sum = 0; |
| int limit = FFMIN(AV_RN16A(&p1[2 * x]) + threshold, maxc); |
| |
| for (i = 0; i < 8; sum += AV_RN16A(coordinates[i++] + x * 2)); |
| |
| dst[x] = FFMIN(FFMAX(sum / 8, AV_RN16A(&p1[x * 2])), limit); |
| } |
| } |
| |
| static int config_input(AVFilterLink *inlink) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| NContext *s = ctx->priv; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| |
| s->depth = desc->comp[0].depth; |
| s->max = (1 << s->depth) - 1; |
| s->bpc = (s->depth + 7) / 8; |
| |
| s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w); |
| s->planewidth[0] = s->planewidth[3] = inlink->w; |
| s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h); |
| s->planeheight[0] = s->planeheight[3] = inlink->h; |
| |
| s->nb_planes = av_pix_fmt_count_planes(inlink->format); |
| |
| if (!strcmp(ctx->filter->name, "erosion")) |
| s->filter = s->depth > 8 ? erosion16 : erosion; |
| else if (!strcmp(ctx->filter->name, "dilation")) |
| s->filter = s->depth > 8 ? dilation16 : dilation; |
| else if (!strcmp(ctx->filter->name, "deflate")) |
| s->filter = s->depth > 8 ? deflate16 : deflate; |
| else if (!strcmp(ctx->filter->name, "inflate")) |
| s->filter = s->depth > 8 ? inflate16 : inflate; |
| |
| return 0; |
| } |
| |
| static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| NContext *s = ctx->priv; |
| ThreadData *td = arg; |
| AVFrame *out = td->out; |
| AVFrame *in = td->in; |
| int plane, y; |
| |
| for (plane = 0; plane < s->nb_planes; plane++) { |
| const int bpc = s->bpc; |
| const int threshold = s->threshold[plane]; |
| const int stride = in->linesize[plane]; |
| const int dstride = out->linesize[plane]; |
| const int height = s->planeheight[plane]; |
| const int width = s->planewidth[plane]; |
| const int slice_start = (height * jobnr) / nb_jobs; |
| const int slice_end = (height * (jobnr+1)) / nb_jobs; |
| const uint8_t *src = (const uint8_t *)in->data[plane] + slice_start * stride; |
| uint8_t *dst = out->data[plane] + slice_start * dstride; |
| |
| if (!threshold) { |
| av_image_copy_plane(dst, dstride, src, stride, width * bpc, slice_end - slice_start); |
| continue; |
| } |
| |
| for (y = slice_start; y < slice_end; y++) { |
| const int nh = y > 0; |
| const int ph = y < height - 1; |
| const uint8_t *coordinates[] = { src - nh * stride, src + 1 * bpc - nh * stride, src + 2 * bpc - nh * stride, |
| src, src + 2 * bpc, |
| src + ph * stride, src + 1 * bpc + ph * stride, src + 2 * bpc + ph * stride}; |
| |
| const uint8_t *coordinateslb[] = { src + 1 * bpc - nh * stride, src - nh * stride, src + 1 * bpc - nh * stride, |
| src + 1 * bpc, src + 1 * bpc, |
| src + 1 * bpc + ph * stride, src + ph * stride, src + 1 * bpc + ph * stride}; |
| |
| const uint8_t *coordinatesrb[] = { src + (width - 2) * bpc - nh * stride, src + (width - 1) * bpc - nh * stride, src + (width - 2) * bpc - nh * stride, |
| src + (width - 2) * bpc, src + (width - 2) * bpc, |
| src + (width - 2) * bpc + ph * stride, src + (width - 1) * bpc + ph * stride, src + (width - 2) * bpc + ph * stride}; |
| |
| s->filter(dst, src, 1, threshold, coordinateslb, s->coordinates, s->max); |
| if (width > 1) { |
| s->filter(dst + 1 * bpc, src + 1 * bpc, width - 2, threshold, coordinates, s->coordinates, s->max); |
| s->filter(dst + (width - 1) * bpc, src + (width - 1) * bpc, 1, threshold, coordinatesrb, s->coordinates, s->max); |
| } |
| |
| src += stride; |
| dst += dstride; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| NContext *s = ctx->priv; |
| ThreadData td; |
| AVFrame *out; |
| |
| out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
| if (!out) { |
| av_frame_free(&in); |
| return AVERROR(ENOMEM); |
| } |
| av_frame_copy_props(out, in); |
| |
| td.in = in; |
| td.out = out; |
| ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(s->planeheight[1], ff_filter_get_nb_threads(ctx))); |
| |
| av_frame_free(&in); |
| return ff_filter_frame(outlink, out); |
| } |
| |
| static const AVFilterPad neighbor_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .filter_frame = filter_frame, |
| .config_props = config_input, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad neighbor_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| }, |
| { NULL } |
| }; |
| |
| #define OFFSET(x) offsetof(NContext, x) |
| #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM |
| |
| #define DEFINE_NEIGHBOR_FILTER(name_, description_) \ |
| AVFILTER_DEFINE_CLASS(name_); \ |
| \ |
| AVFilter ff_vf_##name_ = { \ |
| .name = #name_, \ |
| .description = NULL_IF_CONFIG_SMALL(description_), \ |
| .priv_size = sizeof(NContext), \ |
| .priv_class = &name_##_class, \ |
| .query_formats = query_formats, \ |
| .inputs = neighbor_inputs, \ |
| .outputs = neighbor_outputs, \ |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC| \ |
| AVFILTER_FLAG_SLICE_THREADS, \ |
| .process_command = ff_filter_process_command, \ |
| } |
| |
| #if CONFIG_EROSION_FILTER |
| |
| static const AVOption erosion_options[] = { |
| { "threshold0", "set threshold for 1st plane", OFFSET(threshold[0]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "threshold1", "set threshold for 2nd plane", OFFSET(threshold[1]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "threshold2", "set threshold for 3rd plane", OFFSET(threshold[2]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "threshold3", "set threshold for 4th plane", OFFSET(threshold[3]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "coordinates", "set coordinates", OFFSET(coordinates), AV_OPT_TYPE_INT, {.i64=255}, 0, 255, FLAGS }, |
| { NULL } |
| }; |
| |
| DEFINE_NEIGHBOR_FILTER(erosion, "Apply erosion effect."); |
| |
| #endif /* CONFIG_EROSION_FILTER */ |
| |
| #if CONFIG_DILATION_FILTER |
| |
| static const AVOption dilation_options[] = { |
| { "threshold0", "set threshold for 1st plane", OFFSET(threshold[0]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "threshold1", "set threshold for 2nd plane", OFFSET(threshold[1]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "threshold2", "set threshold for 3rd plane", OFFSET(threshold[2]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "threshold3", "set threshold for 4th plane", OFFSET(threshold[3]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "coordinates", "set coordinates", OFFSET(coordinates), AV_OPT_TYPE_INT, {.i64=255}, 0, 255, FLAGS }, |
| { NULL } |
| }; |
| |
| DEFINE_NEIGHBOR_FILTER(dilation, "Apply dilation effect."); |
| |
| #endif /* CONFIG_DILATION_FILTER */ |
| |
| #if CONFIG_DEFLATE_FILTER |
| |
| static const AVOption deflate_options[] = { |
| { "threshold0", "set threshold for 1st plane", OFFSET(threshold[0]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "threshold1", "set threshold for 2nd plane", OFFSET(threshold[1]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "threshold2", "set threshold for 3rd plane", OFFSET(threshold[2]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "threshold3", "set threshold for 4th plane", OFFSET(threshold[3]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { NULL } |
| }; |
| |
| DEFINE_NEIGHBOR_FILTER(deflate, "Apply deflate effect."); |
| |
| #endif /* CONFIG_DEFLATE_FILTER */ |
| |
| #if CONFIG_INFLATE_FILTER |
| |
| static const AVOption inflate_options[] = { |
| { "threshold0", "set threshold for 1st plane", OFFSET(threshold[0]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "threshold1", "set threshold for 2nd plane", OFFSET(threshold[1]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "threshold2", "set threshold for 3rd plane", OFFSET(threshold[2]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { "threshold3", "set threshold for 4th plane", OFFSET(threshold[3]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS }, |
| { NULL } |
| }; |
| |
| DEFINE_NEIGHBOR_FILTER(inflate, "Apply inflate effect."); |
| |
| #endif /* CONFIG_INFLATE_FILTER */ |
