| /* |
| * 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" |
| |
| typedef struct ESTDIFContext { |
| const AVClass *class; |
| |
| int mode; ///< 0 is frame, 1 is field |
| int parity; ///< frame field parity |
| int deint; ///< which frames to deinterlace |
| int rslope; ///< best edge slope search radius |
| int redge; ///< best edge match search radius |
| int interp; ///< type of interpolation |
| int linesize[4]; ///< bytes of pixel data per line for each plane |
| 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 depth; |
| int half; |
| int nb_planes; |
| int nb_threads; |
| int64_t pts; |
| AVFrame *prev; |
| |
| void (*interpolate)(struct ESTDIFContext *s, uint8_t *dst, |
| const uint8_t *prev_line, const uint8_t *next_line, |
| const uint8_t *prev2_line, const uint8_t *next2_line, |
| const uint8_t *prev3_line, const uint8_t *next3_line, |
| int x, int width, int rslope, int redge, unsigned half, |
| int depth, int *K); |
| |
| unsigned (*mid_8[3])(const uint8_t *const prev, |
| const uint8_t *const next, |
| const uint8_t *const prev2, |
| const uint8_t *const next2, |
| const uint8_t *const prev3, |
| const uint8_t *const next3, |
| int end, int x, int k, int depth); |
| |
| unsigned (*mid_16[3])(const uint16_t *const prev, |
| const uint16_t *const next, |
| const uint16_t *const prev2, |
| const uint16_t *const next2, |
| const uint16_t *const prev3, |
| const uint16_t *const next3, |
| int end, int x, int k, int depth); |
| } ESTDIFContext; |
| |
| #define MAX_R 15 |
| #define S (MAX_R * 2 + 1) |
| |
| #define OFFSET(x) offsetof(ESTDIFContext, 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 estdif_options[] = { |
| { "mode", "specify the mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "mode" }, |
| CONST("frame", "send one frame for each frame", 0, "mode"), |
| CONST("field", "send one frame for each field", 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"), |
| { "rslope", "specify the search radius for edge slope tracing", OFFSET(rslope), AV_OPT_TYPE_INT, {.i64=1}, 1, MAX_R, FLAGS, }, |
| { "redge", "specify the search radius for best edge matching", OFFSET(redge), AV_OPT_TYPE_INT, {.i64=2}, 0, MAX_R, FLAGS, }, |
| { "interp", "specify the type of interpolation", OFFSET(interp), AV_OPT_TYPE_INT, {.i64=1}, 0, 2, FLAGS, "interp" }, |
| CONST("2p", "two-point interpolation", 0, "interp"), |
| CONST("4p", "four-point interpolation", 1, "interp"), |
| CONST("6p", "six-point interpolation", 2, "interp"), |
| { NULL } |
| }; |
| |
| AVFILTER_DEFINE_CLASS(estdif); |
| |
| 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_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16, |
| 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_YUV440P10, |
| 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_GBRP9, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16, |
| 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_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; |
| } |
| |
| typedef struct ThreadData { |
| AVFrame *out, *in; |
| } ThreadData; |
| |
| #define MIDL(type, ss) \ |
| static unsigned midl_##ss(const type *const prev, \ |
| const type *const next, \ |
| int end, int x, int k) \ |
| { \ |
| return (prev[av_clip(x + k, 0, end)] + \ |
| next[av_clip(x - k, 0, end)] + 1) >> 1; \ |
| } |
| |
| MIDL(uint8_t, 8) |
| MIDL(uint16_t, 16) |
| |
| #define MID2(type, ss) \ |
| static unsigned mid2_##ss(const type *const prev, \ |
| const type *const next, \ |
| const type *const prev2, \ |
| const type *const next2, \ |
| const type *const prev3, \ |
| const type *const next3, \ |
| int end, int x, int k, int depth) \ |
| { \ |
| return (prev[av_clip(x + k, 0, end)] + \ |
| next[av_clip(x - k, 0, end)] + 1) >> 1; \ |
| } |
| |
| MID2(uint8_t, 8) |
| MID2(uint16_t, 16) |
| |
| #define MID4(type, ss) \ |
| static unsigned mid4_##ss(const type *const prev, \ |
| const type *const next, \ |
| const type *const prev2, \ |
| const type *const next2, \ |
| const type *const prev3, \ |
| const type *const next3, \ |
| int end, int x, int k, int depth) \ |
| { \ |
| return av_clip_uintp2_c(( \ |
| 9 * (prev[av_clip(x + k, 0, end)] + \ |
| next[av_clip(x - k, 0, end)]) - \ |
| 1 * (prev2[av_clip(x + k*3, 0, end)] + \ |
| next2[av_clip(x - k*3, 0, end)]) + 8) >> 4, \ |
| depth); \ |
| } |
| |
| MID4(uint8_t, 8) |
| MID4(uint16_t, 16) |
| |
| #define MID6(type, ss) \ |
| static unsigned mid6_##ss(const type *const prev, \ |
| const type *const next, \ |
| const type *const prev2, \ |
| const type *const next2, \ |
| const type *const prev3, \ |
| const type *const next3, \ |
| int end, int x, int k, int depth) \ |
| { \ |
| return av_clip_uintp2_c(( \ |
| 20 * (prev[av_clip(x + k, 0, end)] + \ |
| next[av_clip(x - k, 0, end)]) - \ |
| 5 * (prev2[av_clip(x + k*3, 0, end)] + \ |
| next2[av_clip(x - k*3, 0, end)]) + \ |
| 1 * (prev3[av_clip(x + k*5, 0, end)] + \ |
| next3[av_clip(x - k*5, 0, end)]) + 16) >> 5, \ |
| depth); \ |
| } |
| |
| MID6(uint8_t, 8) |
| MID6(uint16_t, 16) |
| |
| #define DIFF(type, ss) \ |
| static unsigned diff_##ss(const type *const prev, \ |
| const type *const next, \ |
| int end, int x, int k, int j) \ |
| { \ |
| return FFABS(prev[av_clip(x + k + j, 0, end)] - \ |
| next[av_clip(x - k + j, 0, end)]); \ |
| } |
| |
| DIFF(uint8_t, 8) |
| DIFF(uint16_t, 16) |
| |
| #define COST(type, ss) \ |
| static unsigned cost_##ss(const type *const prev, \ |
| const type *const next, \ |
| int end, int x, int k) \ |
| { \ |
| const int m = midl_##ss(prev, next, end, x, k); \ |
| const int p = prev[x]; \ |
| const int n = next[x]; \ |
| \ |
| return FFABS(p - m) + FFABS(n - m); \ |
| } |
| |
| COST(uint8_t, 8) |
| COST(uint16_t, 16) |
| |
| #define INTERPOLATE(type, atype, max, ss) \ |
| static void interpolate_##ss(ESTDIFContext *s, uint8_t *ddst, \ |
| const uint8_t *const pprev_line, \ |
| const uint8_t *const nnext_line, \ |
| const uint8_t *const pprev2_line, \ |
| const uint8_t *const nnext2_line, \ |
| const uint8_t *const pprev3_line, \ |
| const uint8_t *const nnext3_line, \ |
| int x, int width, int rslope, \ |
| int redge, unsigned h, int depth, \ |
| int *K) \ |
| { \ |
| type *dst = (type *)ddst; \ |
| const type *const prev_line = (const type *const)pprev_line; \ |
| const type *const prev2_line = (const type *const)pprev2_line; \ |
| const type *const prev3_line = (const type *const)pprev3_line; \ |
| const type *const next_line = (const type *const)nnext_line; \ |
| const type *const next2_line = (const type *const)nnext2_line; \ |
| const type *const next3_line = (const type *const)nnext3_line; \ |
| const int interp = s->interp; \ |
| const int end = width - 1; \ |
| const atype f = redge + 2; \ |
| atype sd[S], sD[S], di = 0; \ |
| atype dmin = max; \ |
| int k = *K; \ |
| \ |
| for (int i = -rslope; i <= rslope && abs(k) > rslope; i++) { \ |
| atype sum = 0; \ |
| \ |
| for (int j = -redge; j <= redge; j++) { \ |
| sum += diff_##ss(prev_line, next_line, end, x, i, j); \ |
| sum += diff_##ss(prev2_line, prev_line, end, x, i, j); \ |
| sum += diff_##ss(next_line, next2_line, end, x, i, j); \ |
| } \ |
| \ |
| sD[i + rslope] = sum; \ |
| sD[i + rslope] += f * cost_##ss(prev_line, next_line, end, x, i); \ |
| sD[i + rslope] += h * abs(i); \ |
| \ |
| dmin = FFMIN(sD[i + rslope], dmin); \ |
| } \ |
| \ |
| for (int i = -rslope; i <= rslope; i++) { \ |
| atype sum = 0; \ |
| \ |
| for (int j = -redge; j <= redge; j++) { \ |
| sum += diff_##ss(prev_line, next_line, end, x, k + i, j); \ |
| sum += diff_##ss(prev2_line, prev_line, end, x, k + i, j); \ |
| sum += diff_##ss(next_line, next2_line, end, x, k + i, j); \ |
| } \ |
| \ |
| sd[i + rslope] = sum; \ |
| sd[i + rslope] += f * cost_##ss(prev_line, next_line, end, x, k + i); \ |
| sd[i + rslope] += h * abs(k + i); \ |
| \ |
| dmin = FFMIN(sd[i + rslope], dmin); \ |
| } \ |
| \ |
| for (int i = -rslope; i <= rslope && abs(k) > rslope; i++) { \ |
| if (dmin == sD[i + rslope]) { \ |
| di = 1; \ |
| k = i; \ |
| break; \ |
| } \ |
| } \ |
| \ |
| for (int i = -rslope; i <= rslope && !di; i++) { \ |
| if (dmin == sd[i + rslope]) { \ |
| k += i; \ |
| break; \ |
| } \ |
| } \ |
| \ |
| dst[x] = s->mid_##ss[interp](prev_line, next_line, \ |
| prev2_line, next2_line, \ |
| prev3_line, next3_line, \ |
| end, x, k, depth); \ |
| \ |
| *K = k; \ |
| } |
| |
| INTERPOLATE(uint8_t, unsigned, UINT_MAX, 8) |
| INTERPOLATE(uint16_t, uint64_t, UINT64_MAX, 16) |
| |
| static int deinterlace_slice(AVFilterContext *ctx, void *arg, |
| int jobnr, int nb_jobs) |
| { |
| ESTDIFContext *s = ctx->priv; |
| ThreadData *td = arg; |
| AVFrame *out = td->out; |
| AVFrame *in = td->in; |
| const int rslope = s->rslope; |
| const int redge = s->redge; |
| const int half = s->half; |
| const int depth = s->depth; |
| const int interlaced = in->interlaced_frame; |
| const int tff = (s->field == (s->parity == -1 ? interlaced ? in->top_field_first : 1 : |
| s->parity ^ 1)); |
| |
| for (int plane = 0; plane < s->nb_planes; plane++) { |
| const uint8_t *src_data = in->data[plane]; |
| uint8_t *dst_data = out->data[plane]; |
| const int linesize = s->linesize[plane]; |
| const int width = s->planewidth[plane]; |
| const int height = s->planeheight[plane]; |
| const int src_linesize = in->linesize[plane]; |
| const int dst_linesize = out->linesize[plane]; |
| const int start = (height * jobnr) / nb_jobs; |
| const int end = (height * (jobnr+1)) / nb_jobs; |
| const uint8_t *prev_line, *prev2_line, *next_line, *next2_line, *in_line; |
| const uint8_t *prev3_line, *next3_line; |
| uint8_t *out_line; |
| int y_out; |
| |
| y_out = start + (tff ^ (start & 1)); |
| |
| in_line = src_data + (y_out * src_linesize); |
| out_line = dst_data + (y_out * dst_linesize); |
| |
| while (y_out < end) { |
| memcpy(out_line, in_line, linesize); |
| y_out += 2; |
| in_line += src_linesize * 2; |
| out_line += dst_linesize * 2; |
| } |
| |
| y_out = start + ((!tff) ^ (start & 1)); |
| out_line = dst_data + (y_out * dst_linesize); |
| |
| for (int y = y_out; y < end; y += 2) { |
| int y_prev3_in = y - 5; |
| int y_next3_in = y + 5; |
| int y_prev2_in = y - 3; |
| int y_next2_in = y + 3; |
| int y_prev_in = y - 1; |
| int y_next_in = y + 1; |
| int k; |
| |
| while (y_prev3_in < 0) |
| y_prev3_in += 2; |
| |
| while (y_next3_in >= height) |
| y_next3_in -= 2; |
| |
| while (y_prev2_in < 0) |
| y_prev2_in += 2; |
| |
| while (y_next2_in >= height) |
| y_next2_in -= 2; |
| |
| while (y_prev_in < 0) |
| y_prev_in += 2; |
| |
| while (y_next_in >= height) |
| y_next_in -= 2; |
| |
| prev3_line = src_data + (y_prev3_in * src_linesize); |
| next3_line = src_data + (y_next3_in * src_linesize); |
| |
| prev2_line = src_data + (y_prev2_in * src_linesize); |
| next2_line = src_data + (y_next2_in * src_linesize); |
| |
| prev_line = src_data + (y_prev_in * src_linesize); |
| next_line = src_data + (y_next_in * src_linesize); |
| |
| k = 0; |
| |
| for (int x = 0; x < width; x++) { |
| s->interpolate(s, out_line, |
| prev_line, next_line, |
| prev2_line, next2_line, |
| prev3_line, next3_line, |
| x, width, rslope, redge, half, depth, &k); |
| } |
| |
| out_line += 2 * dst_linesize; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int filter(AVFilterContext *ctx, int is_second, AVFrame *in) |
| { |
| ESTDIFContext *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, deinterlace_slice, &td, NULL, |
| FFMIN(s->planeheight[1] / 2, s->nb_threads)); |
| |
| if (s->mode) |
| s->field = !s->field; |
| |
| return ff_filter_frame(outlink, out); |
| } |
| |
| static int config_input(AVFilterLink *inlink) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| ESTDIFContext *s = ctx->priv; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| int ret; |
| |
| if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0) |
| return ret; |
| |
| 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); |
| s->nb_threads = ff_filter_get_nb_threads(ctx); |
| s->depth = desc->comp[0].depth; |
| s->interpolate = s->depth <= 8 ? interpolate_8 : interpolate_16; |
| s->mid_8[0] = mid2_8; |
| s->mid_8[1] = mid4_8; |
| s->mid_8[2] = mid6_8; |
| s->mid_16[0] = mid2_16; |
| s->mid_16[1] = mid4_16; |
| s->mid_16[2] = mid6_16; |
| s->half = 1 << (s->depth - 1); |
| |
| return 0; |
| } |
| static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| ESTDIFContext *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; |
| ESTDIFContext *s = ctx->priv; |
| int ret; |
| |
| if (s->eof) |
| return AVERROR_EOF; |
| |
| ret = ff_request_frame(ctx->inputs[0]); |
| |
| if (ret == AVERROR_EOF && s->prev) { |
| 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) |
| { |
| ESTDIFContext *s = ctx->priv; |
| |
| av_frame_free(&s->prev); |
| } |
| |
| static const AVFilterPad estdif_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .filter_frame = filter_frame, |
| .config_props = config_input, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad estdif_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_output, |
| .request_frame = request_frame, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter ff_vf_estdif = { |
| .name = "estdif", |
| .description = NULL_IF_CONFIG_SMALL("Apply Edge Slope Tracing deinterlace."), |
| .priv_size = sizeof(ESTDIFContext), |
| .priv_class = &estdif_class, |
| .uninit = uninit, |
| .query_formats = query_formats, |
| .inputs = estdif_inputs, |
| .outputs = estdif_outputs, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, |
| .process_command = ff_filter_process_command, |
| }; |
