| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * This file is part of FFmpeg. | ||
| 3 | * | ||
| 4 | * FFmpeg is free software; you can redistribute it and/or | ||
| 5 | * modify it under the terms of the GNU Lesser General Public | ||
| 6 | * License as published by the Free Software Foundation; either | ||
| 7 | * version 2.1 of the License, or (at your option) any later version. | ||
| 8 | * | ||
| 9 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 12 | * Lesser General Public License for more details. | ||
| 13 | * | ||
| 14 | * You should have received a copy of the GNU Lesser General Public | ||
| 15 | * License along with FFmpeg; if not, write to the Free Software | ||
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 17 | */ | ||
| 18 | |||
| 19 | #include "libavutil/opt.h" | ||
| 20 | #include "libavutil/imgutils.h" | ||
| 21 | #include "avfilter.h" | ||
| 22 | #include "filters.h" | ||
| 23 | #include "video.h" | ||
| 24 | |||
| 25 | typedef struct CASContext { | ||
| 26 | const AVClass *class; | ||
| 27 | |||
| 28 | float strength; | ||
| 29 | int planes; | ||
| 30 | int nb_planes; | ||
| 31 | |||
| 32 | int depth; | ||
| 33 | int planeheight[4]; | ||
| 34 | int planewidth[4]; | ||
| 35 | |||
| 36 | AVFrame *in; | ||
| 37 | |||
| 38 | int (*do_slice)(AVFilterContext *s, void *arg, | ||
| 39 | int jobnr, int nb_jobs); | ||
| 40 | } CASContext; | ||
| 41 | |||
| 42 | ✗ | static inline float lerpf(float v0, float v1, float f) | |
| 43 | { | ||
| 44 | ✗ | return v0 + (v1 - v0) * f; | |
| 45 | } | ||
| 46 | |||
| 47 | ✗ | static int cas_slice8(AVFilterContext *avctx, void *arg, int jobnr, int nb_jobs) | |
| 48 | { | ||
| 49 | ✗ | CASContext *s = avctx->priv; | |
| 50 | ✗ | const float strength = -lerpf(16.f, 4.01f, s->strength); | |
| 51 | ✗ | AVFrame *out = arg; | |
| 52 | ✗ | AVFrame *in = s->in; | |
| 53 | |||
| 54 | ✗ | for (int p = 0; p < s->nb_planes; p++) { | |
| 55 | ✗ | const int slice_start = (s->planeheight[p] * jobnr) / nb_jobs; | |
| 56 | ✗ | const int slice_end = (s->planeheight[p] * (jobnr+1)) / nb_jobs; | |
| 57 | ✗ | const int linesize = out->linesize[p]; | |
| 58 | ✗ | const int in_linesize = in->linesize[p]; | |
| 59 | ✗ | const int w = s->planewidth[p]; | |
| 60 | ✗ | const int w1 = w - 1; | |
| 61 | ✗ | const int h = s->planeheight[p]; | |
| 62 | ✗ | const int h1 = h - 1; | |
| 63 | ✗ | uint8_t *dst = out->data[p] + slice_start * linesize; | |
| 64 | ✗ | const uint8_t *src = in->data[p]; | |
| 65 | |||
| 66 | ✗ | if (!((1 << p) & s->planes)) { | |
| 67 | ✗ | av_image_copy_plane(dst, linesize, src + slice_start * in_linesize, in_linesize, | |
| 68 | w, slice_end - slice_start); | ||
| 69 | ✗ | continue; | |
| 70 | } | ||
| 71 | |||
| 72 | ✗ | for (int y = slice_start; y < slice_end; y++) { | |
| 73 | ✗ | const int y0 = FFMAX(y - 1, 0); | |
| 74 | ✗ | const int y1 = FFMIN(y + 1, h1); | |
| 75 | ✗ | for (int x = 0; x < w; x++) { | |
| 76 | ✗ | const int x0 = FFMAX(x - 1, 0); | |
| 77 | ✗ | const int x1 = FFMIN(x + 1, w1); | |
| 78 | ✗ | int a = src[y0 * in_linesize + x0]; | |
| 79 | ✗ | int b = src[y0 * in_linesize + x]; | |
| 80 | ✗ | int c = src[y0 * in_linesize + x1]; | |
| 81 | ✗ | int d = src[y * in_linesize + x0]; | |
| 82 | ✗ | int e = src[y * in_linesize + x]; | |
| 83 | ✗ | int f = src[y * in_linesize + x1]; | |
| 84 | ✗ | int g = src[y1 * in_linesize + x0]; | |
| 85 | ✗ | int h = src[y1 * in_linesize + x]; | |
| 86 | ✗ | int i = src[y1 * in_linesize + x1]; | |
| 87 | int mn, mn2, mx, mx2; | ||
| 88 | float amp, weight; | ||
| 89 | |||
| 90 | ✗ | mn = FFMIN3(FFMIN3( d, e, f), b, h); | |
| 91 | ✗ | mn2 = FFMIN3(FFMIN3(mn, a, c), g, i); | |
| 92 | |||
| 93 | ✗ | mn = mn + mn2; | |
| 94 | |||
| 95 | ✗ | mx = FFMAX3(FFMAX3( d, e, f), b, h); | |
| 96 | ✗ | mx2 = FFMAX3(FFMAX3(mx, a, c), g, i); | |
| 97 | |||
| 98 | ✗ | mx = mx + mx2; | |
| 99 | |||
| 100 | ✗ | amp = sqrtf(av_clipf(FFMIN(mn, 511 - mx) / (float)mx, 0.f, 1.f)); | |
| 101 | |||
| 102 | ✗ | weight = amp / strength; | |
| 103 | |||
| 104 | ✗ | dst[x] = av_clip_uint8(((b + d + f + h) * weight + e) / (1.f + 4.f * weight)); | |
| 105 | } | ||
| 106 | ✗ | dst += linesize; | |
| 107 | } | ||
| 108 | } | ||
| 109 | |||
| 110 | ✗ | return 0; | |
| 111 | } | ||
| 112 | |||
| 113 | ✗ | static int cas_slice16(AVFilterContext *avctx, void *arg, int jobnr, int nb_jobs) | |
| 114 | { | ||
| 115 | ✗ | CASContext *s = avctx->priv; | |
| 116 | ✗ | const float strength = -lerpf(16.f, 4.01f, s->strength); | |
| 117 | ✗ | const int max = 2 * (1 << s->depth) - 1; | |
| 118 | ✗ | AVFrame *out = arg; | |
| 119 | ✗ | AVFrame *in = s->in; | |
| 120 | |||
| 121 | ✗ | for (int p = 0; p < s->nb_planes; p++) { | |
| 122 | ✗ | const int slice_start = (s->planeheight[p] * jobnr) / nb_jobs; | |
| 123 | ✗ | const int slice_end = (s->planeheight[p] * (jobnr+1)) / nb_jobs; | |
| 124 | ✗ | const int linesize = out->linesize[p] / 2; | |
| 125 | ✗ | const int in_linesize = in->linesize[p] / 2; | |
| 126 | ✗ | const int w = s->planewidth[p]; | |
| 127 | ✗ | const int w1 = w - 1; | |
| 128 | ✗ | const int h = s->planeheight[p]; | |
| 129 | ✗ | const int h1 = h - 1; | |
| 130 | ✗ | uint16_t *dst = ((uint16_t *)out->data[p]) + slice_start * linesize; | |
| 131 | ✗ | const uint16_t *src = (const uint16_t *)in->data[p]; | |
| 132 | |||
| 133 | ✗ | if (!((1 << p) & s->planes)) { | |
| 134 | ✗ | av_image_copy_plane((uint8_t *)dst, linesize * 2, (uint8_t *)(src + slice_start * in_linesize), | |
| 135 | in_linesize * 2, w * 2, slice_end - slice_start); | ||
| 136 | ✗ | continue; | |
| 137 | } | ||
| 138 | |||
| 139 | ✗ | for (int y = slice_start; y < slice_end; y++) { | |
| 140 | ✗ | const int y0 = FFMAX(y - 1, 0); | |
| 141 | ✗ | const int y1 = FFMIN(y + 1, h1); | |
| 142 | ✗ | for (int x = 0; x < w; x++) { | |
| 143 | ✗ | const int x0 = FFMAX(x - 1, 0); | |
| 144 | ✗ | const int x1 = FFMIN(x + 1, w1); | |
| 145 | ✗ | int a = src[y0 * in_linesize + x0]; | |
| 146 | ✗ | int b = src[y0 * in_linesize + x]; | |
| 147 | ✗ | int c = src[y0 * in_linesize + x1]; | |
| 148 | ✗ | int d = src[y * in_linesize + x0]; | |
| 149 | ✗ | int e = src[y * in_linesize + x]; | |
| 150 | ✗ | int f = src[y * in_linesize + x1]; | |
| 151 | ✗ | int g = src[y1 * in_linesize + x0]; | |
| 152 | ✗ | int h = src[y1 * in_linesize + x]; | |
| 153 | ✗ | int i = src[y1 * in_linesize + x1]; | |
| 154 | int mn, mn2, mx, mx2; | ||
| 155 | float amp, weight; | ||
| 156 | |||
| 157 | ✗ | mn = FFMIN3(FFMIN3( d, e, f), b, h); | |
| 158 | ✗ | mn2 = FFMIN3(FFMIN3(mn, a, c), g, i); | |
| 159 | |||
| 160 | ✗ | mn = mn + mn2; | |
| 161 | |||
| 162 | ✗ | mx = FFMAX3(FFMAX3( d, e, f), b, h); | |
| 163 | ✗ | mx2 = FFMAX3(FFMAX3(mx, a, c), g, i); | |
| 164 | |||
| 165 | ✗ | mx = mx + mx2; | |
| 166 | |||
| 167 | ✗ | amp = sqrtf(av_clipf(FFMIN(mn, max - mx) / (float)mx, 0.f, 1.f)); | |
| 168 | |||
| 169 | ✗ | weight = amp / strength; | |
| 170 | |||
| 171 | ✗ | dst[x] = av_clip_uintp2_c(((b + d + f + h) * weight + e) / (1.f + 4.f * weight), s->depth); | |
| 172 | } | ||
| 173 | ✗ | dst += linesize; | |
| 174 | } | ||
| 175 | } | ||
| 176 | |||
| 177 | ✗ | return 0; | |
| 178 | } | ||
| 179 | |||
| 180 | ✗ | static int filter_frame(AVFilterLink *inlink, AVFrame *in) | |
| 181 | { | ||
| 182 | ✗ | AVFilterContext *ctx = inlink->dst; | |
| 183 | ✗ | AVFilterLink *outlink = ctx->outputs[0]; | |
| 184 | ✗ | CASContext *s = ctx->priv; | |
| 185 | AVFrame *out; | ||
| 186 | |||
| 187 | ✗ | out = ff_get_video_buffer(outlink, outlink->w, outlink->h); | |
| 188 | ✗ | if (!out) { | |
| 189 | ✗ | av_frame_free(&in); | |
| 190 | ✗ | return AVERROR(ENOMEM); | |
| 191 | } | ||
| 192 | ✗ | av_frame_copy_props(out, in); | |
| 193 | |||
| 194 | ✗ | s->in = in; | |
| 195 | ✗ | ff_filter_execute(ctx, s->do_slice, out, NULL, | |
| 196 | ✗ | FFMIN(in->height, ff_filter_get_nb_threads(ctx))); | |
| 197 | ✗ | av_frame_free(&in); | |
| 198 | ✗ | s->in = NULL; | |
| 199 | |||
| 200 | ✗ | return ff_filter_frame(ctx->outputs[0], out); | |
| 201 | } | ||
| 202 | |||
| 203 | static const enum AVPixelFormat pixel_fmts[] = { | ||
| 204 | AV_PIX_FMT_GRAY8, | ||
| 205 | AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, | ||
| 206 | AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16, | ||
| 207 | AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P, | ||
| 208 | AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, | ||
| 209 | AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P, | ||
| 210 | AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, | ||
| 211 | AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P, | ||
| 212 | AV_PIX_FMT_YUVJ411P, | ||
| 213 | AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, | ||
| 214 | AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, | ||
| 215 | AV_PIX_FMT_YUV440P10, | ||
| 216 | AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12, | ||
| 217 | AV_PIX_FMT_YUV440P12, | ||
| 218 | AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14, | ||
| 219 | AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, | ||
| 220 | AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, | ||
| 221 | AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16, | ||
| 222 | AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, | ||
| 223 | AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16, | ||
| 224 | AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16, | ||
| 225 | AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16, | ||
| 226 | AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16, | ||
| 227 | AV_PIX_FMT_NONE | ||
| 228 | }; | ||
| 229 | |||
| 230 | ✗ | static av_cold int config_input(AVFilterLink *inlink) | |
| 231 | { | ||
| 232 | ✗ | AVFilterContext *avctx = inlink->dst; | |
| 233 | ✗ | CASContext *s = avctx->priv; | |
| 234 | ✗ | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); | |
| 235 | |||
| 236 | ✗ | s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h); | |
| 237 | ✗ | s->planeheight[0] = s->planeheight[3] = inlink->h; | |
| 238 | ✗ | s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w); | |
| 239 | ✗ | s->planewidth[0] = s->planewidth[3] = inlink->w; | |
| 240 | |||
| 241 | ✗ | s->depth = desc->comp[0].depth; | |
| 242 | ✗ | s->nb_planes = desc->nb_components; | |
| 243 | ✗ | s->do_slice = s->depth <= 8 ? cas_slice8 : cas_slice16; | |
| 244 | |||
| 245 | ✗ | return 0; | |
| 246 | } | ||
| 247 | |||
| 248 | static const AVFilterPad cas_inputs[] = { | ||
| 249 | { | ||
| 250 | .name = "default", | ||
| 251 | .type = AVMEDIA_TYPE_VIDEO, | ||
| 252 | .filter_frame = filter_frame, | ||
| 253 | .config_props = config_input, | ||
| 254 | }, | ||
| 255 | }; | ||
| 256 | |||
| 257 | #define OFFSET(x) offsetof(CASContext, x) | ||
| 258 | #define VF AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM | ||
| 259 | |||
| 260 | static const AVOption cas_options[] = { | ||
| 261 | { "strength", "set the sharpening strength", OFFSET(strength), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, 1, VF }, | ||
| 262 | { "planes", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=7}, 0, 15, VF }, | ||
| 263 | { NULL } | ||
| 264 | }; | ||
| 265 | |||
| 266 | AVFILTER_DEFINE_CLASS(cas); | ||
| 267 | |||
| 268 | const AVFilter ff_vf_cas = { | ||
| 269 | .name = "cas", | ||
| 270 | .description = NULL_IF_CONFIG_SMALL("Contrast Adaptive Sharpen."), | ||
| 271 | .priv_size = sizeof(CASContext), | ||
| 272 | .priv_class = &cas_class, | ||
| 273 | FILTER_INPUTS(cas_inputs), | ||
| 274 | FILTER_OUTPUTS(ff_video_default_filterpad), | ||
| 275 | FILTER_PIXFMTS_ARRAY(pixel_fmts), | ||
| 276 | .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, | ||
| 277 | .process_command = ff_filter_process_command, | ||
| 278 | }; | ||
| 279 |