| 1 | /* |
| 2 | * Copyright (c) 2003 Daniel Moreno <comac AT comac DOT darktech DOT org> |
| 3 | * Copyright (c) 2010 Baptiste Coudurier |
| 4 | * Copyright (c) 2012 Loren Merritt |
| 5 | * |
| 6 | * This file is part of FFmpeg, ported from MPlayer. |
| 7 | * |
| 8 | * FFmpeg is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * FFmpeg is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along |
| 19 | * with FFmpeg; if not, write to the Free Software Foundation, Inc., |
| 20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 21 | */ |
| 22 | |
| 23 | /** |
| 24 | * @file |
| 25 | * high quality 3d video denoiser, ported from MPlayer |
| 26 | * libmpcodecs/vf_hqdn3d.c. |
| 27 | */ |
| 28 | |
| 29 | #include <float.h> |
| 30 | |
| 31 | #include "config.h" |
| 32 | #include "libavutil/attributes.h" |
| 33 | #include "libavutil/common.h" |
| 34 | #include "libavutil/pixdesc.h" |
| 35 | #include "libavutil/intreadwrite.h" |
| 36 | #include "libavutil/opt.h" |
| 37 | |
| 38 | #include "avfilter.h" |
| 39 | #include "formats.h" |
| 40 | #include "internal.h" |
| 41 | #include "video.h" |
| 42 | #include "vf_hqdn3d.h" |
| 43 | |
| 44 | #define LUT_BITS (depth==16 ? 8 : 4) |
| 45 | #define LOAD(x) (((depth == 8 ? src[x] : AV_RN16A(src + (x) * 2)) << (16 - depth))\ |
| 46 | + (((1 << (16 - depth)) - 1) >> 1)) |
| 47 | #define STORE(x,val) (depth == 8 ? dst[x] = (val) >> (16 - depth) : \ |
| 48 | AV_WN16A(dst + (x) * 2, (val) >> (16 - depth))) |
| 49 | |
| 50 | av_always_inline |
| 51 | static uint32_t lowpass(int prev, int cur, int16_t *coef, int depth) |
| 52 | { |
| 53 | int d = (prev - cur) >> (8 - LUT_BITS); |
| 54 | return cur + coef[d]; |
| 55 | } |
| 56 | |
| 57 | av_always_inline |
| 58 | static void denoise_temporal(uint8_t *src, uint8_t *dst, |
| 59 | uint16_t *frame_ant, |
| 60 | int w, int h, int sstride, int dstride, |
| 61 | int16_t *temporal, int depth) |
| 62 | { |
| 63 | long x, y; |
| 64 | uint32_t tmp; |
| 65 | |
| 66 | temporal += 256 << LUT_BITS; |
| 67 | |
| 68 | for (y = 0; y < h; y++) { |
| 69 | for (x = 0; x < w; x++) { |
| 70 | frame_ant[x] = tmp = lowpass(frame_ant[x], LOAD(x), temporal, depth); |
| 71 | STORE(x, tmp); |
| 72 | } |
| 73 | src += sstride; |
| 74 | dst += dstride; |
| 75 | frame_ant += w; |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | av_always_inline |
| 80 | static void denoise_spatial(HQDN3DContext *s, |
| 81 | uint8_t *src, uint8_t *dst, |
| 82 | uint16_t *line_ant, uint16_t *frame_ant, |
| 83 | int w, int h, int sstride, int dstride, |
| 84 | int16_t *spatial, int16_t *temporal, int depth) |
| 85 | { |
| 86 | long x, y; |
| 87 | uint32_t pixel_ant; |
| 88 | uint32_t tmp; |
| 89 | |
| 90 | spatial += 256 << LUT_BITS; |
| 91 | temporal += 256 << LUT_BITS; |
| 92 | |
| 93 | /* First line has no top neighbor. Only left one for each tmp and |
| 94 | * last frame */ |
| 95 | pixel_ant = LOAD(0); |
| 96 | for (x = 0; x < w; x++) { |
| 97 | line_ant[x] = tmp = pixel_ant = lowpass(pixel_ant, LOAD(x), spatial, depth); |
| 98 | frame_ant[x] = tmp = lowpass(frame_ant[x], tmp, temporal, depth); |
| 99 | STORE(x, tmp); |
| 100 | } |
| 101 | |
| 102 | for (y = 1; y < h; y++) { |
| 103 | src += sstride; |
| 104 | dst += dstride; |
| 105 | frame_ant += w; |
| 106 | if (s->denoise_row[depth]) { |
| 107 | s->denoise_row[depth](src, dst, line_ant, frame_ant, w, spatial, temporal); |
| 108 | continue; |
| 109 | } |
| 110 | pixel_ant = LOAD(0); |
| 111 | for (x = 0; x < w-1; x++) { |
| 112 | line_ant[x] = tmp = lowpass(line_ant[x], pixel_ant, spatial, depth); |
| 113 | pixel_ant = lowpass(pixel_ant, LOAD(x+1), spatial, depth); |
| 114 | frame_ant[x] = tmp = lowpass(frame_ant[x], tmp, temporal, depth); |
| 115 | STORE(x, tmp); |
| 116 | } |
| 117 | line_ant[x] = tmp = lowpass(line_ant[x], pixel_ant, spatial, depth); |
| 118 | frame_ant[x] = tmp = lowpass(frame_ant[x], tmp, temporal, depth); |
| 119 | STORE(x, tmp); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | av_always_inline |
| 124 | static void denoise_depth(HQDN3DContext *s, |
| 125 | uint8_t *src, uint8_t *dst, |
| 126 | uint16_t *line_ant, uint16_t **frame_ant_ptr, |
| 127 | int w, int h, int sstride, int dstride, |
| 128 | int16_t *spatial, int16_t *temporal, int depth) |
| 129 | { |
| 130 | // FIXME: For 16bit depth, frame_ant could be a pointer to the previous |
| 131 | // filtered frame rather than a separate buffer. |
| 132 | long x, y; |
| 133 | uint16_t *frame_ant = *frame_ant_ptr; |
| 134 | if (!frame_ant) { |
| 135 | uint8_t *frame_src = src; |
| 136 | *frame_ant_ptr = frame_ant = av_malloc_array(w, h*sizeof(uint16_t)); |
| 137 | for (y = 0; y < h; y++, src += sstride, frame_ant += w) |
| 138 | for (x = 0; x < w; x++) |
| 139 | frame_ant[x] = LOAD(x); |
| 140 | src = frame_src; |
| 141 | frame_ant = *frame_ant_ptr; |
| 142 | } |
| 143 | |
| 144 | if (spatial[0]) |
| 145 | denoise_spatial(s, src, dst, line_ant, frame_ant, |
| 146 | w, h, sstride, dstride, spatial, temporal, depth); |
| 147 | else |
| 148 | denoise_temporal(src, dst, frame_ant, |
| 149 | w, h, sstride, dstride, temporal, depth); |
| 150 | emms_c(); |
| 151 | } |
| 152 | |
| 153 | #define denoise(...) \ |
| 154 | switch (s->depth) {\ |
| 155 | case 8: denoise_depth(__VA_ARGS__, 8); break;\ |
| 156 | case 9: denoise_depth(__VA_ARGS__, 9); break;\ |
| 157 | case 10: denoise_depth(__VA_ARGS__, 10); break;\ |
| 158 | case 16: denoise_depth(__VA_ARGS__, 16); break;\ |
| 159 | } |
| 160 | |
| 161 | static int16_t *precalc_coefs(double dist25, int depth) |
| 162 | { |
| 163 | int i; |
| 164 | double gamma, simil, C; |
| 165 | int16_t *ct = av_malloc((512<<LUT_BITS)*sizeof(int16_t)); |
| 166 | if (!ct) |
| 167 | return NULL; |
| 168 | |
| 169 | gamma = log(0.25) / log(1.0 - FFMIN(dist25,252.0)/255.0 - 0.00001); |
| 170 | |
| 171 | for (i = -255<<LUT_BITS; i <= 255<<LUT_BITS; i++) { |
| 172 | double f = ((i<<(9-LUT_BITS)) + (1<<(8-LUT_BITS)) - 1) / 512.0; // midpoint of the bin |
| 173 | simil = 1.0 - FFABS(f) / 255.0; |
| 174 | C = pow(simil, gamma) * 256.0 * f; |
| 175 | ct[(256<<LUT_BITS)+i] = lrint(C); |
| 176 | } |
| 177 | |
| 178 | ct[0] = !!dist25; |
| 179 | return ct; |
| 180 | } |
| 181 | |
| 182 | #define PARAM1_DEFAULT 4.0 |
| 183 | #define PARAM2_DEFAULT 3.0 |
| 184 | #define PARAM3_DEFAULT 6.0 |
| 185 | |
| 186 | static av_cold int init(AVFilterContext *ctx) |
| 187 | { |
| 188 | HQDN3DContext *s = ctx->priv; |
| 189 | |
| 190 | if (!s->strength[LUMA_SPATIAL]) |
| 191 | s->strength[LUMA_SPATIAL] = PARAM1_DEFAULT; |
| 192 | if (!s->strength[CHROMA_SPATIAL]) |
| 193 | s->strength[CHROMA_SPATIAL] = PARAM2_DEFAULT * s->strength[LUMA_SPATIAL] / PARAM1_DEFAULT; |
| 194 | if (!s->strength[LUMA_TMP]) |
| 195 | s->strength[LUMA_TMP] = PARAM3_DEFAULT * s->strength[LUMA_SPATIAL] / PARAM1_DEFAULT; |
| 196 | if (!s->strength[CHROMA_TMP]) |
| 197 | s->strength[CHROMA_TMP] = s->strength[LUMA_TMP] * s->strength[CHROMA_SPATIAL] / s->strength[LUMA_SPATIAL]; |
| 198 | |
| 199 | av_log(ctx, AV_LOG_VERBOSE, "ls:%f cs:%f lt:%f ct:%f\n", |
| 200 | s->strength[LUMA_SPATIAL], s->strength[CHROMA_SPATIAL], |
| 201 | s->strength[LUMA_TMP], s->strength[CHROMA_TMP]); |
| 202 | |
| 203 | return 0; |
| 204 | } |
| 205 | |
| 206 | static av_cold void uninit(AVFilterContext *ctx) |
| 207 | { |
| 208 | HQDN3DContext *s = ctx->priv; |
| 209 | |
| 210 | av_freep(&s->coefs[0]); |
| 211 | av_freep(&s->coefs[1]); |
| 212 | av_freep(&s->coefs[2]); |
| 213 | av_freep(&s->coefs[3]); |
| 214 | av_freep(&s->line); |
| 215 | av_freep(&s->frame_prev[0]); |
| 216 | av_freep(&s->frame_prev[1]); |
| 217 | av_freep(&s->frame_prev[2]); |
| 218 | } |
| 219 | |
| 220 | static int query_formats(AVFilterContext *ctx) |
| 221 | { |
| 222 | static const enum AVPixelFormat pix_fmts[] = { |
| 223 | AV_PIX_FMT_YUV420P, |
| 224 | AV_PIX_FMT_YUV422P, |
| 225 | AV_PIX_FMT_YUV444P, |
| 226 | AV_PIX_FMT_YUV410P, |
| 227 | AV_PIX_FMT_YUV411P, |
| 228 | AV_PIX_FMT_YUV440P, |
| 229 | AV_PIX_FMT_YUVJ420P, |
| 230 | AV_PIX_FMT_YUVJ422P, |
| 231 | AV_PIX_FMT_YUVJ444P, |
| 232 | AV_PIX_FMT_YUVJ440P, |
| 233 | AV_PIX_FMT_YUV420P9, |
| 234 | AV_PIX_FMT_YUV422P9, |
| 235 | AV_PIX_FMT_YUV444P9, |
| 236 | AV_PIX_FMT_YUV420P10, |
| 237 | AV_PIX_FMT_YUV422P10, |
| 238 | AV_PIX_FMT_YUV444P10, |
| 239 | AV_PIX_FMT_YUV420P16, |
| 240 | AV_PIX_FMT_YUV422P16, |
| 241 | AV_PIX_FMT_YUV444P16, |
| 242 | AV_PIX_FMT_NONE |
| 243 | }; |
| 244 | |
| 245 | ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); |
| 246 | |
| 247 | return 0; |
| 248 | } |
| 249 | |
| 250 | static int config_input(AVFilterLink *inlink) |
| 251 | { |
| 252 | HQDN3DContext *s = inlink->dst->priv; |
| 253 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| 254 | int i; |
| 255 | |
| 256 | uninit(inlink->dst); |
| 257 | |
| 258 | s->hsub = desc->log2_chroma_w; |
| 259 | s->vsub = desc->log2_chroma_h; |
| 260 | s->depth = desc->comp[0].depth_minus1+1; |
| 261 | |
| 262 | s->line = av_malloc_array(inlink->w, sizeof(*s->line)); |
| 263 | if (!s->line) |
| 264 | return AVERROR(ENOMEM); |
| 265 | |
| 266 | for (i = 0; i < 4; i++) { |
| 267 | s->coefs[i] = precalc_coefs(s->strength[i], s->depth); |
| 268 | if (!s->coefs[i]) |
| 269 | return AVERROR(ENOMEM); |
| 270 | } |
| 271 | |
| 272 | if (ARCH_X86) |
| 273 | ff_hqdn3d_init_x86(s); |
| 274 | |
| 275 | return 0; |
| 276 | } |
| 277 | |
| 278 | static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
| 279 | { |
| 280 | AVFilterContext *ctx = inlink->dst; |
| 281 | HQDN3DContext *s = ctx->priv; |
| 282 | AVFilterLink *outlink = ctx->outputs[0]; |
| 283 | |
| 284 | AVFrame *out; |
| 285 | int direct, c; |
| 286 | |
| 287 | if (av_frame_is_writable(in) && !ctx->is_disabled) { |
| 288 | direct = 1; |
| 289 | out = in; |
| 290 | } else { |
| 291 | direct = 0; |
| 292 | out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
| 293 | if (!out) { |
| 294 | av_frame_free(&in); |
| 295 | return AVERROR(ENOMEM); |
| 296 | } |
| 297 | |
| 298 | av_frame_copy_props(out, in); |
| 299 | } |
| 300 | |
| 301 | for (c = 0; c < 3; c++) { |
| 302 | denoise(s, in->data[c], out->data[c], |
| 303 | s->line, &s->frame_prev[c], |
| 304 | FF_CEIL_RSHIFT(in->width, (!!c * s->hsub)), |
| 305 | FF_CEIL_RSHIFT(in->height, (!!c * s->vsub)), |
| 306 | in->linesize[c], out->linesize[c], |
| 307 | s->coefs[c ? CHROMA_SPATIAL : LUMA_SPATIAL], |
| 308 | s->coefs[c ? CHROMA_TMP : LUMA_TMP]); |
| 309 | } |
| 310 | |
| 311 | if (ctx->is_disabled) { |
| 312 | av_frame_free(&out); |
| 313 | return ff_filter_frame(outlink, in); |
| 314 | } |
| 315 | |
| 316 | if (!direct) |
| 317 | av_frame_free(&in); |
| 318 | |
| 319 | return ff_filter_frame(outlink, out); |
| 320 | } |
| 321 | |
| 322 | #define OFFSET(x) offsetof(HQDN3DContext, x) |
| 323 | #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
| 324 | static const AVOption hqdn3d_options[] = { |
| 325 | { "luma_spatial", "spatial luma strength", OFFSET(strength[LUMA_SPATIAL]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS }, |
| 326 | { "chroma_spatial", "spatial chroma strength", OFFSET(strength[CHROMA_SPATIAL]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS }, |
| 327 | { "luma_tmp", "temporal luma strength", OFFSET(strength[LUMA_TMP]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS }, |
| 328 | { "chroma_tmp", "temporal chroma strength", OFFSET(strength[CHROMA_TMP]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS }, |
| 329 | { NULL } |
| 330 | }; |
| 331 | |
| 332 | AVFILTER_DEFINE_CLASS(hqdn3d); |
| 333 | |
| 334 | static const AVFilterPad avfilter_vf_hqdn3d_inputs[] = { |
| 335 | { |
| 336 | .name = "default", |
| 337 | .type = AVMEDIA_TYPE_VIDEO, |
| 338 | .config_props = config_input, |
| 339 | .filter_frame = filter_frame, |
| 340 | }, |
| 341 | { NULL } |
| 342 | }; |
| 343 | |
| 344 | |
| 345 | static const AVFilterPad avfilter_vf_hqdn3d_outputs[] = { |
| 346 | { |
| 347 | .name = "default", |
| 348 | .type = AVMEDIA_TYPE_VIDEO |
| 349 | }, |
| 350 | { NULL } |
| 351 | }; |
| 352 | |
| 353 | AVFilter ff_vf_hqdn3d = { |
| 354 | .name = "hqdn3d", |
| 355 | .description = NULL_IF_CONFIG_SMALL("Apply a High Quality 3D Denoiser."), |
| 356 | .priv_size = sizeof(HQDN3DContext), |
| 357 | .priv_class = &hqdn3d_class, |
| 358 | .init = init, |
| 359 | .uninit = uninit, |
| 360 | .query_formats = query_formats, |
| 361 | .inputs = avfilter_vf_hqdn3d_inputs, |
| 362 | .outputs = avfilter_vf_hqdn3d_outputs, |
| 363 | .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL, |
| 364 | }; |